# Checks for declarations. #
# ------------------------- #
-for ac_func in getopt
-do
- ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-echo "$as_me:$LINENO: checking whether $ac_func is declared" >&5
-echo $ECHO_N "checking whether $ac_func is declared... $ECHO_C" >&6
-if eval "test \"\${gcc_cv_have_decl_$ac_func+set}\" = set"; then
+echo "$as_me:$LINENO: checking whether free is declared" >&5
+echo $ECHO_N "checking whether free is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_free+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#undef $ac_tr_decl
-#define $ac_tr_decl 1
-
-
+$ac_includes_default
int
main ()
{
-#ifndef $ac_func
-char *(*pfn) = (char *(*)) $ac_func ;
+#ifndef free
+ char *p = (char *) free;
#endif
+
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- eval "gcc_cv_have_decl_$ac_func=yes"
+ ac_cv_have_decl_free=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-eval "gcc_cv_have_decl_$ac_func=no"
+ac_cv_have_decl_free=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_free" >&5
+echo "${ECHO_T}$ac_cv_have_decl_free" >&6
+if test $ac_cv_have_decl_free = yes; then
-if eval "test \"`echo '$gcc_cv_have_decl_'$ac_func`\" = yes"; then
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6 ; cat >>confdefs.h <<_ACEOF
-#define $ac_tr_decl 1
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FREE 1
_ACEOF
+
else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6 ; cat >>confdefs.h <<_ACEOF
-#define $ac_tr_decl 0
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FREE 0
_ACEOF
-fi
-
-done
-if test x = y ; then
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_DECL_GETOPT 1
-_ACEOF
fi
-
-
-# ----------------------- #
-# Checks for structures. #
-# ----------------------- #
-
-echo "$as_me:$LINENO: checking for struct stat.st_blocks" >&5
-echo $ECHO_N "checking for struct stat.st_blocks... $ECHO_C" >&6
-if test "${ac_cv_member_struct_stat_st_blocks+set}" = set; then
+echo "$as_me:$LINENO: checking whether malloc is declared" >&5
+echo $ECHO_N "checking whether malloc is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_malloc+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
int
main ()
{
-static struct stat ac_aggr;
-if (ac_aggr.st_blocks)
-return 0;
+#ifndef malloc
+ char *p = (char *) malloc;
+#endif
+
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_member_struct_stat_st_blocks=yes
+ ac_cv_have_decl_malloc=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-cat >conftest.$ac_ext <<_ACEOF
+ac_cv_have_decl_malloc=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_malloc" >&5
+echo "${ECHO_T}$ac_cv_have_decl_malloc" >&6
+if test $ac_cv_have_decl_malloc = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_MALLOC 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_MALLOC 0
+_ACEOF
+
+
+fi
+echo "$as_me:$LINENO: checking whether realloc is declared" >&5
+echo $ECHO_N "checking whether realloc is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_realloc+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
int
main ()
{
-static struct stat ac_aggr;
-if (sizeof ac_aggr.st_blocks)
-return 0;
+#ifndef realloc
+ char *p = (char *) realloc;
+#endif
+
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_member_struct_stat_st_blocks=yes
+ ac_cv_have_decl_realloc=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-ac_cv_member_struct_stat_st_blocks=no
+ac_cv_have_decl_realloc=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: $ac_cv_member_struct_stat_st_blocks" >&5
-echo "${ECHO_T}$ac_cv_member_struct_stat_st_blocks" >&6
-if test $ac_cv_member_struct_stat_st_blocks = yes; then
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_realloc" >&5
+echo "${ECHO_T}$ac_cv_have_decl_realloc" >&6
+if test $ac_cv_have_decl_realloc = yes; then
cat >>confdefs.h <<_ACEOF
-#define HAVE_STRUCT_STAT_ST_BLOCKS 1
+#define HAVE_DECL_REALLOC 1
_ACEOF
-fi
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_REALLOC 0
+_ACEOF
-# ------------------ #
-# Checks for types. #
-# ------------------ #
+fi
-echo "$as_me:$LINENO: checking return type of signal handlers" >&5
-echo $ECHO_N "checking return type of signal handlers... $ECHO_C" >&6
-if test "${ac_cv_type_signal+set}" = set; then
+
+echo "$as_me:$LINENO: checking whether strerror is declared" >&5
+echo $ECHO_N "checking whether strerror is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_strerror+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <sys/types.h>
-#include <signal.h>
-#ifdef signal
-# undef signal
-#endif
-#ifdef __cplusplus
-extern "C" void (*signal (int, void (*)(int)))(int);
-#else
-void (*signal ()) ();
-#endif
-
+$ac_includes_default
int
main ()
{
-int i;
+#ifndef strerror
+ char *p = (char *) strerror;
+#endif
+
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_type_signal=void
+ ac_cv_have_decl_strerror=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-ac_cv_type_signal=int
+ac_cv_have_decl_strerror=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $ac_cv_type_signal" >&5
-echo "${ECHO_T}$ac_cv_type_signal" >&6
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_strerror" >&5
+echo "${ECHO_T}$ac_cv_have_decl_strerror" >&6
+if test $ac_cv_have_decl_strerror = yes; then
cat >>confdefs.h <<_ACEOF
-#define RETSIGTYPE $ac_cv_type_signal
+#define HAVE_DECL_STRERROR 1
_ACEOF
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRERROR 0
+_ACEOF
-# ------------------------------------- #
-# Checks for compiler characteristics. #
-# ------------------------------------- #
-echo "$as_me:$LINENO: checking for an ANSI C-conforming const" >&5
-echo $ECHO_N "checking for an ANSI C-conforming const... $ECHO_C" >&6
-if test "${ac_cv_c_const+set}" = set; then
+fi
+echo "$as_me:$LINENO: checking whether strstr is declared" >&5
+echo $ECHO_N "checking whether strstr is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_strstr+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
+$ac_includes_default
int
main ()
{
-/* FIXME: Include the comments suggested by Paul. */
-#ifndef __cplusplus
- /* Ultrix mips cc rejects this. */
- typedef int charset[2];
- const charset x;
- /* SunOS 4.1.1 cc rejects this. */
- char const *const *ccp;
- char **p;
- /* NEC SVR4.0.2 mips cc rejects this. */
- struct point {int x, y;};
- static struct point const zero = {0,0};
- /* AIX XL C 1.02.0.0 rejects this.
- It does not let you subtract one const X* pointer from another in
- an arm of an if-expression whose if-part is not a constant
- expression */
- const char *g = "string";
- ccp = &g + (g ? g-g : 0);
- /* HPUX 7.0 cc rejects these. */
- ++ccp;
- p = (char**) ccp;
- ccp = (char const *const *) p;
- { /* SCO 3.2v4 cc rejects this. */
- char *t;
- char const *s = 0 ? (char *) 0 : (char const *) 0;
-
- *t++ = 0;
- }
- { /* Someone thinks the Sun supposedly-ANSI compiler will reject this. */
- int x[] = {25, 17};
- const int *foo = &x[0];
- ++foo;
- }
- { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
- typedef const int *iptr;
- iptr p = 0;
- ++p;
- }
- { /* AIX XL C 1.02.0.0 rejects this saying
- "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
- struct s { int j; const int *ap[3]; };
- struct s *b; b->j = 5;
- }
- { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
- const int foo = 10;
- }
+#ifndef strstr
+ char *p = (char *) strstr;
#endif
;
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_c_const=yes
+ ac_cv_have_decl_strstr=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-ac_cv_c_const=no
+ac_cv_have_decl_strstr=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $ac_cv_c_const" >&5
-echo "${ECHO_T}$ac_cv_c_const" >&6
-if test $ac_cv_c_const = no; then
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_strstr" >&5
+echo "${ECHO_T}$ac_cv_have_decl_strstr" >&6
+if test $ac_cv_have_decl_strstr = yes; then
-cat >>confdefs.h <<\_ACEOF
-#define const
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRSTR 1
+_ACEOF
+
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRSTR 0
_ACEOF
+
fi
-echo "$as_me:$LINENO: checking for inline" >&5
-echo $ECHO_N "checking for inline... $ECHO_C" >&6
-if test "${ac_cv_c_inline+set}" = set; then
+
+echo "$as_me:$LINENO: checking whether getopt is declared" >&5
+echo $ECHO_N "checking whether getopt is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_getopt+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
- ac_cv_c_inline=no
-for ac_kw in inline __inline__ __inline; do
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#ifndef __cplusplus
-typedef int foo_t;
-static $ac_kw foo_t static_foo () {return 0; }
-$ac_kw foo_t foo () {return 0; }
+$ac_includes_default
+int
+main ()
+{
+#ifndef getopt
+ char *p = (char *) getopt;
#endif
+ ;
+ return 0;
+}
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_c_inline=$ac_kw; break
+ ac_cv_have_decl_getopt=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
+ac_cv_have_decl_getopt=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-done
-
fi
-echo "$as_me:$LINENO: result: $ac_cv_c_inline" >&5
-echo "${ECHO_T}$ac_cv_c_inline" >&6
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_getopt" >&5
+echo "${ECHO_T}$ac_cv_have_decl_getopt" >&6
+if test $ac_cv_have_decl_getopt = yes; then
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETOPT 1
+_ACEOF
-case $ac_cv_c_inline in
- inline | yes) ;;
- *)
- case $ac_cv_c_inline in
- no) ac_val=;;
- *) ac_val=$ac_cv_c_inline;;
- esac
- cat >>confdefs.h <<_ACEOF
-#ifndef __cplusplus
-#define inline $ac_val
-#endif
+
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETOPT 0
_ACEOF
- ;;
-esac
-# ------------------------------ #
-# Checks for library functions. #
-# ------------------------------ #
+fi
-# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
-# for constant arguments. Useless!
-echo "$as_me:$LINENO: checking for working alloca.h" >&5
-echo $ECHO_N "checking for working alloca.h... $ECHO_C" >&6
-if test "${ac_cv_working_alloca_h+set}" = set; then
+
+
+# ----------------------- #
+# Checks for structures. #
+# ----------------------- #
+
+echo "$as_me:$LINENO: checking for struct stat.st_blocks" >&5
+echo $ECHO_N "checking for struct stat.st_blocks... $ECHO_C" >&6
+if test "${ac_cv_member_struct_stat_st_blocks+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <alloca.h>
+$ac_includes_default
int
main ()
{
-char *p = (char *) alloca (2 * sizeof (int));
+static struct stat ac_aggr;
+if (ac_aggr.st_blocks)
+return 0;
;
return 0;
}
_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
+ { ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_working_alloca_h=yes
+ ac_cv_member_struct_stat_st_blocks=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-ac_cv_working_alloca_h=no
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: $ac_cv_working_alloca_h" >&5
-echo "${ECHO_T}$ac_cv_working_alloca_h" >&6
-if test $ac_cv_working_alloca_h = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_ALLOCA_H 1
-_ACEOF
-
-fi
-
-echo "$as_me:$LINENO: checking for alloca" >&5
-echo $ECHO_N "checking for alloca... $ECHO_C" >&6
-if test "${ac_cv_func_alloca_works+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#ifdef __GNUC__
-# define alloca __builtin_alloca
-#else
-# ifdef _MSC_VER
-# include <malloc.h>
-# define alloca _alloca
-# else
-# if HAVE_ALLOCA_H
-# include <alloca.h>
-# else
-# ifdef _AIX
- #pragma alloca
-# else
-# ifndef alloca /* predefined by HP cc +Olibcalls */
-char *alloca ();
-# endif
-# endif
-# endif
-# endif
-#endif
-
+$ac_includes_default
int
main ()
{
-char *p = (char *) alloca (1);
+static struct stat ac_aggr;
+if (sizeof ac_aggr.st_blocks)
+return 0;
;
return 0;
}
_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
+ { ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_func_alloca_works=yes
+ ac_cv_member_struct_stat_st_blocks=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-ac_cv_func_alloca_works=no
+ac_cv_member_struct_stat_st_blocks=no
fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $ac_cv_func_alloca_works" >&5
-echo "${ECHO_T}$ac_cv_func_alloca_works" >&6
-
-if test $ac_cv_func_alloca_works = yes; then
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_member_struct_stat_st_blocks" >&5
+echo "${ECHO_T}$ac_cv_member_struct_stat_st_blocks" >&6
+if test $ac_cv_member_struct_stat_st_blocks = yes; then
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_ALLOCA 1
+cat >>confdefs.h <<_ACEOF
+#define HAVE_STRUCT_STAT_ST_BLOCKS 1
_ACEOF
-else
- # The SVR3 libPW and SVR4 libucb both contain incompatible functions
-# that cause trouble. Some versions do not even contain alloca or
-# contain a buggy version. If you still want to use their alloca,
-# use ar to extract alloca.o from them instead of compiling alloca.c.
-
-ALLOCA=alloca.$ac_objext
-
-cat >>confdefs.h <<\_ACEOF
-#define C_ALLOCA 1
-_ACEOF
+fi
-echo "$as_me:$LINENO: checking whether \`alloca.c' needs Cray hooks" >&5
-echo $ECHO_N "checking whether \`alloca.c' needs Cray hooks... $ECHO_C" >&6
-if test "${ac_cv_os_cray+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#if defined(CRAY) && ! defined(CRAY2)
-webecray
-#else
-wenotbecray
-#endif
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "webecray" >/dev/null 2>&1; then
- ac_cv_os_cray=yes
-else
- ac_cv_os_cray=no
-fi
-rm -f conftest*
+# ------------------ #
+# Checks for types. #
+# ------------------ #
-fi
-echo "$as_me:$LINENO: result: $ac_cv_os_cray" >&5
-echo "${ECHO_T}$ac_cv_os_cray" >&6
-if test $ac_cv_os_cray = yes; then
- for ac_func in _getb67 GETB67 getb67; do
- as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_func" >&5
-echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
-if eval "test \"\${$as_ac_var+set}\" = set"; then
+echo "$as_me:$LINENO: checking return type of signal handlers" >&5
+echo $ECHO_N "checking return type of signal handlers... $ECHO_C" >&6
+if test "${ac_cv_type_signal+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
- For example, HP-UX 11i <limits.h> declares gettimeofday. */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
- which can conflict with char $ac_func (); below.
- Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- <limits.h> exists even on freestanding compilers. */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
+#include <sys/types.h>
+#include <signal.h>
+#ifdef signal
+# undef signal
#endif
-
-#undef $ac_func
-
-/* Override any gcc2 internal prototype to avoid an error. */
#ifdef __cplusplus
-extern "C"
-{
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
+extern "C" void (*signal (int, void (*)(int)))(int);
#else
-char (*f) () = $ac_func;
-#endif
-#ifdef __cplusplus
-}
+void (*signal ()) ();
#endif
int
main ()
{
-return f != $ac_func;
+int i;
;
return 0;
}
_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
+ { ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- eval "$as_ac_var=yes"
+ ac_cv_type_signal=void
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-eval "$as_ac_var=no"
+ac_cv_type_signal=int
fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
-if test `eval echo '${'$as_ac_var'}'` = yes; then
+echo "$as_me:$LINENO: result: $ac_cv_type_signal" >&5
+echo "${ECHO_T}$ac_cv_type_signal" >&6
cat >>confdefs.h <<_ACEOF
-#define CRAY_STACKSEG_END $ac_func
+#define RETSIGTYPE $ac_cv_type_signal
_ACEOF
- break
-fi
- done
-fi
-echo "$as_me:$LINENO: checking stack direction for C alloca" >&5
-echo $ECHO_N "checking stack direction for C alloca... $ECHO_C" >&6
-if test "${ac_cv_c_stack_direction+set}" = set; then
+# ------------------------------------- #
+# Checks for compiler characteristics. #
+# ------------------------------------- #
+
+echo "$as_me:$LINENO: checking for an ANSI C-conforming const" >&5
+echo $ECHO_N "checking for an ANSI C-conforming const... $ECHO_C" >&6
+if test "${ac_cv_c_const+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if test "$cross_compiling" = yes; then
- ac_cv_c_stack_direction=0
else
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-int
-find_stack_direction ()
-{
- static char *addr = 0;
- auto char dummy;
- if (addr == 0)
- {
- addr = &dummy;
- return find_stack_direction ();
- }
- else
- return (&dummy > addr) ? 1 : -1;
-}
int
main ()
{
- exit (find_stack_direction () < 0);
+/* FIXME: Include the comments suggested by Paul. */
+#ifndef __cplusplus
+ /* Ultrix mips cc rejects this. */
+ typedef int charset[2];
+ const charset x;
+ /* SunOS 4.1.1 cc rejects this. */
+ char const *const *ccp;
+ char **p;
+ /* NEC SVR4.0.2 mips cc rejects this. */
+ struct point {int x, y;};
+ static struct point const zero = {0,0};
+ /* AIX XL C 1.02.0.0 rejects this.
+ It does not let you subtract one const X* pointer from another in
+ an arm of an if-expression whose if-part is not a constant
+ expression */
+ const char *g = "string";
+ ccp = &g + (g ? g-g : 0);
+ /* HPUX 7.0 cc rejects these. */
+ ++ccp;
+ p = (char**) ccp;
+ ccp = (char const *const *) p;
+ { /* SCO 3.2v4 cc rejects this. */
+ char *t;
+ char const *s = 0 ? (char *) 0 : (char const *) 0;
+
+ *t++ = 0;
+ }
+ { /* Someone thinks the Sun supposedly-ANSI compiler will reject this. */
+ int x[] = {25, 17};
+ const int *foo = &x[0];
+ ++foo;
+ }
+ { /* Sun SC1.0 ANSI compiler rejects this -- but not the above. */
+ typedef const int *iptr;
+ iptr p = 0;
+ ++p;
+ }
+ { /* AIX XL C 1.02.0.0 rejects this saying
+ "k.c", line 2.27: 1506-025 (S) Operand must be a modifiable lvalue. */
+ struct s { int j; const int *ap[3]; };
+ struct s *b; b->j = 5;
+ }
+ { /* ULTRIX-32 V3.1 (Rev 9) vcc rejects this */
+ const int foo = 10;
+ }
+#endif
+
+ ;
+ return 0;
}
_ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>&5
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_c_stack_direction=1
+ ac_cv_c_const=yes
else
- echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
+ echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-( exit $ac_status )
-ac_cv_c_stack_direction=-1
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_const=no
fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $ac_cv_c_stack_direction" >&5
-echo "${ECHO_T}$ac_cv_c_stack_direction" >&6
+echo "$as_me:$LINENO: result: $ac_cv_c_const" >&5
+echo "${ECHO_T}$ac_cv_c_const" >&6
+if test $ac_cv_c_const = no; then
-cat >>confdefs.h <<_ACEOF
-#define STACK_DIRECTION $ac_cv_c_stack_direction
+cat >>confdefs.h <<\_ACEOF
+#define const
_ACEOF
-
fi
-
-
-for ac_header in stdlib.h unistd.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
+echo "$as_me:$LINENO: checking for inline" >&5
+echo $ECHO_N "checking for inline... $ECHO_C" >&6
+if test "${ac_cv_c_inline+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
else
- # Is the header compilable?
-echo "$as_me:$LINENO: checking $ac_header usability" >&5
-echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
+ ac_cv_c_inline=no
+for ac_kw in inline __inline__ __inline; do
+ cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-$ac_includes_default
-#include <$ac_header>
+#ifndef __cplusplus
+typedef int foo_t;
+static $ac_kw foo_t static_foo () {return 0; }
+$ac_kw foo_t foo () {return 0; }
+#endif
+
_ACEOF
rm -f conftest.$ac_objext
if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_header_compiler=yes
+ ac_cv_c_inline=$ac_kw; break
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-ac_header_compiler=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
-echo "${ECHO_T}$ac_header_compiler" >&6
+done
-# Is the header present?
-echo "$as_me:$LINENO: checking $ac_header presence" >&5
-echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <$ac_header>
-_ACEOF
-if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
- (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } >/dev/null; then
- if test -s conftest.err; then
- ac_cpp_err=$ac_c_preproc_warn_flag
- ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
- else
- ac_cpp_err=
- fi
-else
- ac_cpp_err=yes
fi
-if test -z "$ac_cpp_err"; then
- ac_header_preproc=yes
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
+echo "$as_me:$LINENO: result: $ac_cv_c_inline" >&5
+echo "${ECHO_T}$ac_cv_c_inline" >&6
- ac_header_preproc=no
-fi
-rm -f conftest.err conftest.$ac_ext
-echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
-echo "${ECHO_T}$ac_header_preproc" >&6
-# So? What about this header?
-case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
- yes:no: )
- { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
-echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
- ac_header_preproc=yes
- ;;
- no:yes:* )
- { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
-echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
-echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
-echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
-echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
-echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
- { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
-echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
- (
- cat <<\_ASBOX
-## ------------------------------------------ ##
-## Report this to the AC_PACKAGE_NAME lists. ##
-## ------------------------------------------ ##
-_ASBOX
- ) |
- sed "s/^/$as_me: WARNING: /" >&2
+case $ac_cv_c_inline in
+ inline | yes) ;;
+ *)
+ case $ac_cv_c_inline in
+ no) ac_val=;;
+ *) ac_val=$ac_cv_c_inline;;
+ esac
+ cat >>confdefs.h <<_ACEOF
+#ifndef __cplusplus
+#define inline $ac_val
+#endif
+_ACEOF
;;
esac
-echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- eval "$as_ac_Header=\$ac_header_preproc"
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-
-fi
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-done
+# ------------------------------ #
+# Checks for library functions. #
+# ------------------------------ #
-for ac_func in getpagesize
-do
-as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_func" >&5
-echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
-if eval "test \"\${$as_ac_var+set}\" = set"; then
+# The Ultrix 4.2 mips builtin alloca declared by alloca.h only works
+# for constant arguments. Useless!
+echo "$as_me:$LINENO: checking for working alloca.h" >&5
+echo $ECHO_N "checking for working alloca.h... $ECHO_C" >&6
+if test "${ac_cv_working_alloca_h+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
- For example, HP-UX 11i <limits.h> declares gettimeofday. */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
- which can conflict with char $ac_func (); below.
- Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- <limits.h> exists even on freestanding compilers. */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-char (*f) () = $ac_func;
-#endif
-#ifdef __cplusplus
-}
-#endif
-
+#include <alloca.h>
int
main ()
{
-return f != $ac_func;
+char *p = (char *) alloca (2 * sizeof (int));
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- eval "$as_ac_var=yes"
+ ac_cv_working_alloca_h=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-eval "$as_ac_var=no"
+ac_cv_working_alloca_h=no
fi
rm -f conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
-if test `eval echo '${'$as_ac_var'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+echo "$as_me:$LINENO: result: $ac_cv_working_alloca_h" >&5
+echo "${ECHO_T}$ac_cv_working_alloca_h" >&6
+if test $ac_cv_working_alloca_h = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_ALLOCA_H 1
_ACEOF
fi
-done
-echo "$as_me:$LINENO: checking for working mmap" >&5
-echo $ECHO_N "checking for working mmap... $ECHO_C" >&6
-if test "${ac_cv_func_mmap_fixed_mapped+set}" = set; then
+echo "$as_me:$LINENO: checking for alloca" >&5
+echo $ECHO_N "checking for alloca... $ECHO_C" >&6
+if test "${ac_cv_func_alloca_works+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if test "$cross_compiling" = yes; then
- ac_cv_func_mmap_fixed_mapped=no
else
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-$ac_includes_default
-/* malloc might have been renamed as rpl_malloc. */
-#undef malloc
-
-/* Thanks to Mike Haertel and Jim Avera for this test.
- Here is a matrix of mmap possibilities:
- mmap private not fixed
- mmap private fixed at somewhere currently unmapped
- mmap private fixed at somewhere already mapped
- mmap shared not fixed
- mmap shared fixed at somewhere currently unmapped
- mmap shared fixed at somewhere already mapped
- For private mappings, we should verify that changes cannot be read()
- back from the file, nor mmap's back from the file at a different
- address. (There have been systems where private was not correctly
- implemented like the infamous i386 svr4.0, and systems where the
- VM page cache was not coherent with the file system buffer cache
- like early versions of FreeBSD and possibly contemporary NetBSD.)
- For shared mappings, we should conversely verify that changes get
- propagated back to all the places they're supposed to be.
-
- Grep wants private fixed already mapped.
- The main things grep needs to know about mmap are:
- * does it exist and is it safe to write into the mmap'd area
- * how to use it (BSD variants) */
-
-#include <fcntl.h>
-#include <sys/mman.h>
-
-#if !STDC_HEADERS && !HAVE_STDLIB_H
-char *malloc ();
-#endif
-
-/* This mess was copied from the GNU getpagesize.h. */
-#if !HAVE_GETPAGESIZE
-/* Assume that all systems that can run configure have sys/param.h. */
-# if !HAVE_SYS_PARAM_H
-# define HAVE_SYS_PARAM_H 1
+#ifdef __GNUC__
+# define alloca __builtin_alloca
+#else
+# ifdef _MSC_VER
+# include <malloc.h>
+# define alloca _alloca
+# else
+# if HAVE_ALLOCA_H
+# include <alloca.h>
+# else
+# ifdef _AIX
+ #pragma alloca
+# else
+# ifndef alloca /* predefined by HP cc +Olibcalls */
+char *alloca ();
+# endif
+# endif
+# endif
# endif
+#endif
-# ifdef _SC_PAGESIZE
-# define getpagesize() sysconf(_SC_PAGESIZE)
-# else /* no _SC_PAGESIZE */
-# if HAVE_SYS_PARAM_H
-# include <sys/param.h>
-# ifdef EXEC_PAGESIZE
-# define getpagesize() EXEC_PAGESIZE
-# else /* no EXEC_PAGESIZE */
-# ifdef NBPG
-# define getpagesize() NBPG * CLSIZE
-# ifndef CLSIZE
-# define CLSIZE 1
-# endif /* no CLSIZE */
-# else /* no NBPG */
-# ifdef NBPC
-# define getpagesize() NBPC
-# else /* no NBPC */
-# ifdef PAGESIZE
-# define getpagesize() PAGESIZE
-# endif /* PAGESIZE */
-# endif /* no NBPC */
-# endif /* no NBPG */
-# endif /* no EXEC_PAGESIZE */
-# else /* no HAVE_SYS_PARAM_H */
-# define getpagesize() 8192 /* punt totally */
-# endif /* no HAVE_SYS_PARAM_H */
-# endif /* no _SC_PAGESIZE */
-
-#endif /* no HAVE_GETPAGESIZE */
-
-int
-main ()
-{
- char *data, *data2, *data3;
- int i, pagesize;
- int fd;
-
- pagesize = getpagesize ();
-
- /* First, make a file with some known garbage in it. */
- data = (char *) malloc (pagesize);
- if (!data)
- exit (1);
- for (i = 0; i < pagesize; ++i)
- *(data + i) = rand ();
- umask (0);
- fd = creat ("conftest.mmap", 0600);
- if (fd < 0)
- exit (1);
- if (write (fd, data, pagesize) != pagesize)
- exit (1);
- close (fd);
-
- /* Next, try to mmap the file at a fixed address which already has
- something else allocated at it. If we can, also make sure that
- we see the same garbage. */
- fd = open ("conftest.mmap", O_RDWR);
- if (fd < 0)
- exit (1);
- data2 = (char *) malloc (2 * pagesize);
- if (!data2)
- exit (1);
- data2 += (pagesize - ((long) data2 & (pagesize - 1))) & (pagesize - 1);
- if (data2 != mmap (data2, pagesize, PROT_READ | PROT_WRITE,
- MAP_PRIVATE | MAP_FIXED, fd, 0L))
- exit (1);
- for (i = 0; i < pagesize; ++i)
- if (*(data + i) != *(data2 + i))
- exit (1);
-
- /* Finally, make sure that changes to the mapped area do not
- percolate back to the file as seen by read(). (This is a bug on
- some variants of i386 svr4.0.) */
- for (i = 0; i < pagesize; ++i)
- *(data2 + i) = *(data2 + i) + 1;
- data3 = (char *) malloc (pagesize);
- if (!data3)
- exit (1);
- if (read (fd, data3, pagesize) != pagesize)
- exit (1);
- for (i = 0; i < pagesize; ++i)
- if (*(data + i) != *(data3 + i))
- exit (1);
- close (fd);
- exit (0);
-}
-_ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_func_mmap_fixed_mapped=yes
-else
- echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-( exit $ac_status )
-ac_cv_func_mmap_fixed_mapped=no
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-fi
-echo "$as_me:$LINENO: result: $ac_cv_func_mmap_fixed_mapped" >&5
-echo "${ECHO_T}$ac_cv_func_mmap_fixed_mapped" >&6
-if test $ac_cv_func_mmap_fixed_mapped = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_MMAP 1
-_ACEOF
-
-fi
-rm -f conftest.mmap
-
-echo "$as_me:$LINENO: checking for pid_t" >&5
-echo $ECHO_N "checking for pid_t... $ECHO_C" >&6
-if test "${ac_cv_type_pid_t+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$ac_includes_default
int
main ()
{
-if ((pid_t *) 0)
- return 0;
-if (sizeof (pid_t))
- return 0;
+char *p = (char *) alloca (1);
;
return 0;
}
_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
+ { ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_type_pid_t=yes
+ ac_cv_func_alloca_works=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-ac_cv_type_pid_t=no
+ac_cv_func_alloca_works=no
fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $ac_cv_type_pid_t" >&5
-echo "${ECHO_T}$ac_cv_type_pid_t" >&6
-if test $ac_cv_type_pid_t = yes; then
- :
-else
+echo "$as_me:$LINENO: result: $ac_cv_func_alloca_works" >&5
+echo "${ECHO_T}$ac_cv_func_alloca_works" >&6
-cat >>confdefs.h <<_ACEOF
-#define pid_t int
+if test $ac_cv_func_alloca_works = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_ALLOCA 1
_ACEOF
-fi
+else
+ # The SVR3 libPW and SVR4 libucb both contain incompatible functions
+# that cause trouble. Some versions do not even contain alloca or
+# contain a buggy version. If you still want to use their alloca,
+# use ar to extract alloca.o from them instead of compiling alloca.c.
+ALLOCA=alloca.$ac_objext
+cat >>confdefs.h <<\_ACEOF
+#define C_ALLOCA 1
+_ACEOF
-for ac_header in unistd.h vfork.h
-do
-as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
- echo "$as_me:$LINENO: checking for $ac_header" >&5
-echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
+
+echo "$as_me:$LINENO: checking whether \`alloca.c' needs Cray hooks" >&5
+echo $ECHO_N "checking whether \`alloca.c' needs Cray hooks... $ECHO_C" >&6
+if test "${ac_cv_os_cray+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
else
- # Is the header compilable?
-echo "$as_me:$LINENO: checking $ac_header usability" >&5
-echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
+ cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-$ac_includes_default
-#include <$ac_header>
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
+#if defined(CRAY) && ! defined(CRAY2)
+webecray
+#else
+wenotbecray
+#endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "webecray" >/dev/null 2>&1; then
+ ac_cv_os_cray=yes
+else
+ ac_cv_os_cray=no
+fi
+rm -f conftest*
+
+fi
+echo "$as_me:$LINENO: result: $ac_cv_os_cray" >&5
+echo "${ECHO_T}$ac_cv_os_cray" >&6
+if test $ac_cv_os_cray = yes; then
+ for ac_func in _getb67 GETB67 getb67; do
+ as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != $ac_func;
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ eval "$as_ac_var=yes"
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define CRAY_STACKSEG_END $ac_func
+_ACEOF
+
+ break
+fi
+
+ done
+fi
+
+echo "$as_me:$LINENO: checking stack direction for C alloca" >&5
+echo $ECHO_N "checking stack direction for C alloca... $ECHO_C" >&6
+if test "${ac_cv_c_stack_direction+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$cross_compiling" = yes; then
+ ac_cv_c_stack_direction=0
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+int
+find_stack_direction ()
+{
+ static char *addr = 0;
+ auto char dummy;
+ if (addr == 0)
+ {
+ addr = &dummy;
+ return find_stack_direction ();
+ }
+ else
+ return (&dummy > addr) ? 1 : -1;
+}
+
+int
+main ()
+{
+ exit (find_stack_direction () < 0);
+}
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_c_stack_direction=1
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+ac_cv_c_stack_direction=-1
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_c_stack_direction" >&5
+echo "${ECHO_T}$ac_cv_c_stack_direction" >&6
+
+cat >>confdefs.h <<_ACEOF
+#define STACK_DIRECTION $ac_cv_c_stack_direction
+_ACEOF
+
+
+fi
+
+
+
+for ac_header in stdlib.h unistd.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+else
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+$ac_includes_default
+#include <$ac_header>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
+ ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
cat conftest.err >&5
done
-
-for ac_func in fork vfork
+for ac_func in getpagesize
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
fi
done
-if test "x$ac_cv_func_fork" = xyes; then
- echo "$as_me:$LINENO: checking for working fork" >&5
-echo $ECHO_N "checking for working fork... $ECHO_C" >&6
-if test "${ac_cv_func_fork_works+set}" = set; then
+echo "$as_me:$LINENO: checking for working mmap" >&5
+echo $ECHO_N "checking for working mmap... $ECHO_C" >&6
+if test "${ac_cv_func_mmap_fixed_mapped+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
if test "$cross_compiling" = yes; then
- ac_cv_func_fork_works=cross
+ ac_cv_func_mmap_fixed_mapped=no
else
cat >conftest.$ac_ext <<_ACEOF
-/* By Ruediger Kuhlmann. */
- #include <sys/types.h>
- #if HAVE_UNISTD_H
- # include <unistd.h>
- #endif
- /* Some systems only have a dummy stub for fork() */
- int main ()
- {
- if (fork() < 0)
- exit (1);
- exit (0);
- }
-_ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- ac_cv_func_fork_works=yes
-else
- echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-( exit $ac_status )
-ac_cv_func_fork_works=no
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-fi
-echo "$as_me:$LINENO: result: $ac_cv_func_fork_works" >&5
-echo "${ECHO_T}$ac_cv_func_fork_works" >&6
-
-else
- ac_cv_func_fork_works=$ac_cv_func_fork
-fi
-if test "x$ac_cv_func_fork_works" = xcross; then
- case $host in
- *-*-amigaos* | *-*-msdosdjgpp*)
- # Override, as these systems have only a dummy fork() stub
- ac_cv_func_fork_works=no
- ;;
- *)
- ac_cv_func_fork_works=yes
- ;;
- esac
- { echo "$as_me:$LINENO: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&5
-echo "$as_me: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&2;}
-fi
-ac_cv_func_vfork_works=$ac_cv_func_vfork
-if test "x$ac_cv_func_vfork" = xyes; then
- echo "$as_me:$LINENO: checking for working vfork" >&5
-echo $ECHO_N "checking for working vfork... $ECHO_C" >&6
-if test "${ac_cv_func_vfork_works+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if test "$cross_compiling" = yes; then
- ac_cv_func_vfork_works=cross
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
+/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-/* Thanks to Paul Eggert for this test. */
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <sys/wait.h>
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-#if HAVE_VFORK_H
-# include <vfork.h>
-#endif
-/* On some sparc systems, changes by the child to local and incoming
- argument registers are propagated back to the parent. The compiler
- is told about this with #include <vfork.h>, but some compilers
- (e.g. gcc -O) don't grok <vfork.h>. Test for this by using a
- static variable whose address is put into a register that is
- clobbered by the vfork. */
-static void
-#ifdef __cplusplus
-sparc_address_test (int arg)
-# else
-sparc_address_test (arg) int arg;
-#endif
-{
- static pid_t child;
- if (!child) {
- child = vfork ();
- if (child < 0) {
- perror ("vfork");
- _exit(2);
- }
- if (!child) {
- arg = getpid();
- write(-1, "", 0);
- _exit (arg);
- }
- }
-}
+$ac_includes_default
+/* malloc might have been renamed as rpl_malloc. */
+#undef malloc
-int
-main ()
-{
- pid_t parent = getpid ();
- pid_t child;
+/* Thanks to Mike Haertel and Jim Avera for this test.
+ Here is a matrix of mmap possibilities:
+ mmap private not fixed
+ mmap private fixed at somewhere currently unmapped
+ mmap private fixed at somewhere already mapped
+ mmap shared not fixed
+ mmap shared fixed at somewhere currently unmapped
+ mmap shared fixed at somewhere already mapped
+ For private mappings, we should verify that changes cannot be read()
+ back from the file, nor mmap's back from the file at a different
+ address. (There have been systems where private was not correctly
+ implemented like the infamous i386 svr4.0, and systems where the
+ VM page cache was not coherent with the file system buffer cache
+ like early versions of FreeBSD and possibly contemporary NetBSD.)
+ For shared mappings, we should conversely verify that changes get
+ propagated back to all the places they're supposed to be.
- sparc_address_test (0);
+ Grep wants private fixed already mapped.
+ The main things grep needs to know about mmap are:
+ * does it exist and is it safe to write into the mmap'd area
+ * how to use it (BSD variants) */
- child = vfork ();
+#include <fcntl.h>
+#include <sys/mman.h>
- if (child == 0) {
- /* Here is another test for sparc vfork register problems. This
- test uses lots of local variables, at least as many local
- variables as main has allocated so far including compiler
- temporaries. 4 locals are enough for gcc 1.40.3 on a Solaris
- 4.1.3 sparc, but we use 8 to be safe. A buggy compiler should
- reuse the register of parent for one of the local variables,
- since it will think that parent can't possibly be used any more
- in this routine. Assigning to the local variable will thus
- munge parent in the parent process. */
- pid_t
- p = getpid(), p1 = getpid(), p2 = getpid(), p3 = getpid(),
- p4 = getpid(), p5 = getpid(), p6 = getpid(), p7 = getpid();
- /* Convince the compiler that p..p7 are live; otherwise, it might
- use the same hardware register for all 8 local variables. */
- if (p != p1 || p != p2 || p != p3 || p != p4
- || p != p5 || p != p6 || p != p7)
- _exit(1);
+#if !STDC_HEADERS && !HAVE_STDLIB_H
+char *malloc ();
+#endif
- /* On some systems (e.g. IRIX 3.3), vfork doesn't separate parent
- from child file descriptors. If the child closes a descriptor
- before it execs or exits, this munges the parent's descriptor
- as well. Test for this by closing stdout in the child. */
- _exit(close(fileno(stdout)) != 0);
- } else {
- int status;
- struct stat st;
+/* This mess was copied from the GNU getpagesize.h. */
+#if !HAVE_GETPAGESIZE
+/* Assume that all systems that can run configure have sys/param.h. */
+# if !HAVE_SYS_PARAM_H
+# define HAVE_SYS_PARAM_H 1
+# endif
- while (wait(&status) != child)
- ;
- exit(
- /* Was there some problem with vforking? */
- child < 0
+# ifdef _SC_PAGESIZE
+# define getpagesize() sysconf(_SC_PAGESIZE)
+# else /* no _SC_PAGESIZE */
+# if HAVE_SYS_PARAM_H
+# include <sys/param.h>
+# ifdef EXEC_PAGESIZE
+# define getpagesize() EXEC_PAGESIZE
+# else /* no EXEC_PAGESIZE */
+# ifdef NBPG
+# define getpagesize() NBPG * CLSIZE
+# ifndef CLSIZE
+# define CLSIZE 1
+# endif /* no CLSIZE */
+# else /* no NBPG */
+# ifdef NBPC
+# define getpagesize() NBPC
+# else /* no NBPC */
+# ifdef PAGESIZE
+# define getpagesize() PAGESIZE
+# endif /* PAGESIZE */
+# endif /* no NBPC */
+# endif /* no NBPG */
+# endif /* no EXEC_PAGESIZE */
+# else /* no HAVE_SYS_PARAM_H */
+# define getpagesize() 8192 /* punt totally */
+# endif /* no HAVE_SYS_PARAM_H */
+# endif /* no _SC_PAGESIZE */
- /* Did the child fail? (This shouldn't happen.) */
- || status
+#endif /* no HAVE_GETPAGESIZE */
- /* Did the vfork/compiler bug occur? */
- || parent != getpid()
+int
+main ()
+{
+ char *data, *data2, *data3;
+ int i, pagesize;
+ int fd;
- /* Did the file descriptor bug occur? */
- || fstat(fileno(stdout), &st) != 0
- );
- }
+ pagesize = getpagesize ();
+
+ /* First, make a file with some known garbage in it. */
+ data = (char *) malloc (pagesize);
+ if (!data)
+ exit (1);
+ for (i = 0; i < pagesize; ++i)
+ *(data + i) = rand ();
+ umask (0);
+ fd = creat ("conftest.mmap", 0600);
+ if (fd < 0)
+ exit (1);
+ if (write (fd, data, pagesize) != pagesize)
+ exit (1);
+ close (fd);
+
+ /* Next, try to mmap the file at a fixed address which already has
+ something else allocated at it. If we can, also make sure that
+ we see the same garbage. */
+ fd = open ("conftest.mmap", O_RDWR);
+ if (fd < 0)
+ exit (1);
+ data2 = (char *) malloc (2 * pagesize);
+ if (!data2)
+ exit (1);
+ data2 += (pagesize - ((long) data2 & (pagesize - 1))) & (pagesize - 1);
+ if (data2 != mmap (data2, pagesize, PROT_READ | PROT_WRITE,
+ MAP_PRIVATE | MAP_FIXED, fd, 0L))
+ exit (1);
+ for (i = 0; i < pagesize; ++i)
+ if (*(data + i) != *(data2 + i))
+ exit (1);
+
+ /* Finally, make sure that changes to the mapped area do not
+ percolate back to the file as seen by read(). (This is a bug on
+ some variants of i386 svr4.0.) */
+ for (i = 0; i < pagesize; ++i)
+ *(data2 + i) = *(data2 + i) + 1;
+ data3 = (char *) malloc (pagesize);
+ if (!data3)
+ exit (1);
+ if (read (fd, data3, pagesize) != pagesize)
+ exit (1);
+ for (i = 0; i < pagesize; ++i)
+ if (*(data + i) != *(data3 + i))
+ exit (1);
+ close (fd);
+ exit (0);
}
_ACEOF
rm -f conftest$ac_exeext
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_func_vfork_works=yes
+ ac_cv_func_mmap_fixed_mapped=yes
else
echo "$as_me: program exited with status $ac_status" >&5
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
( exit $ac_status )
-ac_cv_func_vfork_works=no
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-fi
-echo "$as_me:$LINENO: result: $ac_cv_func_vfork_works" >&5
-echo "${ECHO_T}$ac_cv_func_vfork_works" >&6
-
-fi;
-if test "x$ac_cv_func_fork_works" = xcross; then
- ac_cv_func_vfork_works=$ac_cv_func_vfork
- { echo "$as_me:$LINENO: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&5
-echo "$as_me: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&2;}
+ac_cv_func_mmap_fixed_mapped=no
fi
-
-if test "x$ac_cv_func_vfork_works" = xyes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_WORKING_VFORK 1
-_ACEOF
-
-else
-
-cat >>confdefs.h <<\_ACEOF
-#define vfork fork
-_ACEOF
-
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
-if test "x$ac_cv_func_fork_works" = xyes; then
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_mmap_fixed_mapped" >&5
+echo "${ECHO_T}$ac_cv_func_mmap_fixed_mapped" >&6
+if test $ac_cv_func_mmap_fixed_mapped = yes; then
cat >>confdefs.h <<\_ACEOF
-#define HAVE_WORKING_FORK 1
+#define HAVE_MMAP 1
_ACEOF
fi
+rm -f conftest.mmap
-
-
-for ac_func in canonicalize_file_name realpath
-do
-as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_func" >&5
-echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
-if eval "test \"\${$as_ac_var+set}\" = set"; then
+echo "$as_me:$LINENO: checking for pid_t" >&5
+echo $ECHO_N "checking for pid_t... $ECHO_C" >&6
+if test "${ac_cv_type_pid_t+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
- For example, HP-UX 11i <limits.h> declares gettimeofday. */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
- which can conflict with char $ac_func (); below.
- Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- <limits.h> exists even on freestanding compilers. */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-char (*f) () = $ac_func;
-#endif
-#ifdef __cplusplus
-}
-#endif
-
+$ac_includes_default
int
main ()
{
-return f != $ac_func;
+if ((pid_t *) 0)
+ return 0;
+if (sizeof (pid_t))
+ return 0;
;
return 0;
}
_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
+ { ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- eval "$as_ac_var=yes"
+ ac_cv_type_pid_t=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-eval "$as_ac_var=no"
+ac_cv_type_pid_t=no
fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
-if test `eval echo '${'$as_ac_var'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+echo "$as_me:$LINENO: result: $ac_cv_type_pid_t" >&5
+echo "${ECHO_T}$ac_cv_type_pid_t" >&6
+if test $ac_cv_type_pid_t = yes; then
+ :
+else
+
+cat >>confdefs.h <<_ACEOF
+#define pid_t int
_ACEOF
fi
-done
-for ac_func in poll
+
+for ac_header in unistd.h vfork.h
do
-as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_func" >&5
-echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
-if eval "test \"\${$as_ac_var+set}\" = set"; then
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
else
- cat >conftest.$ac_ext <<_ACEOF
+ # Is the header compilable?
+echo "$as_me:$LINENO: checking $ac_header usability" >&5
+echo $ECHO_N "checking $ac_header usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
- For example, HP-UX 11i <limits.h> declares gettimeofday. */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
- which can conflict with char $ac_func (); below.
- Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- <limits.h> exists even on freestanding compilers. */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-char (*f) () = $ac_func;
-#endif
-#ifdef __cplusplus
-}
-#endif
-
-int
-main ()
-{
-return f != $ac_func;
- ;
- return 0;
-}
+$ac_includes_default
+#include <$ac_header>
_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+ (eval $ac_compile) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
+ { ac_try='test -s conftest.$ac_objext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- eval "$as_ac_var=yes"
+ ac_header_compiler=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-eval "$as_ac_var=no"
+ac_header_compiler=no
fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking $ac_header presence" >&5
+echo $ECHO_N "checking $ac_header presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h. */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h. */
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+ (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+ ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } >/dev/null; then
+ if test -s conftest.err; then
+ ac_cpp_err=$ac_c_preproc_warn_flag
+ ac_cpp_err=$ac_cpp_err$ac_c_werror_flag
+ else
+ ac_cpp_err=
+ fi
+else
+ ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+ ac_header_preproc=yes
+else
+ echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
+ yes:no: )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: $ac_header: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the compiler's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the compiler's result" >&2;}
+ ac_header_preproc=yes
+ ;;
+ no:yes:* )
+ { echo "$as_me:$LINENO: WARNING: $ac_header: present but cannot be compiled" >&5
+echo "$as_me: WARNING: $ac_header: present but cannot be compiled" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: $ac_header: check for missing prerequisite headers?" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: see the Autoconf documentation" >&5
+echo "$as_me: WARNING: $ac_header: see the Autoconf documentation" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&5
+echo "$as_me: WARNING: $ac_header: section \"Present But Cannot Be Compiled\"" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: $ac_header: proceeding with the preprocessor's result" >&2;}
+ { echo "$as_me:$LINENO: WARNING: $ac_header: in the future, the compiler will take precedence" >&5
+echo "$as_me: WARNING: $ac_header: in the future, the compiler will take precedence" >&2;}
+ (
+ cat <<\_ASBOX
+## ------------------------------------------ ##
+## Report this to the AC_PACKAGE_NAME lists. ##
+## ------------------------------------------ ##
+_ASBOX
+ ) |
+ sed "s/^/$as_me: WARNING: /" >&2
+ ;;
+esac
+echo "$as_me:$LINENO: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ eval "$as_ac_Header=\$ac_header_preproc"
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+
fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
-if test `eval echo '${'$as_ac_var'}'` = yes; then
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
_ACEOF
fi
+
done
-for ac_func in pread64
+
+for ac_func in fork vfork
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
fi
done
+if test "x$ac_cv_func_fork" = xyes; then
+ echo "$as_me:$LINENO: checking for working fork" >&5
+echo $ECHO_N "checking for working fork... $ECHO_C" >&6
+if test "${ac_cv_func_fork_works+set}" = set; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$cross_compiling" = yes; then
+ ac_cv_func_fork_works=cross
+else
+ cat >conftest.$ac_ext <<_ACEOF
+/* By Ruediger Kuhlmann. */
+ #include <sys/types.h>
+ #if HAVE_UNISTD_H
+ # include <unistd.h>
+ #endif
+ /* Some systems only have a dummy stub for fork() */
+ int main ()
+ {
+ if (fork() < 0)
+ exit (1);
+ exit (0);
+ }
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; }; then
+ ac_cv_func_fork_works=yes
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
-for ac_func in sbrk
-do
-as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_func" >&5
-echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
-if eval "test \"\${$as_ac_var+set}\" = set"; then
+( exit $ac_status )
+ac_cv_func_fork_works=no
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_fork_works" >&5
+echo "${ECHO_T}$ac_cv_func_fork_works" >&6
+
+else
+ ac_cv_func_fork_works=$ac_cv_func_fork
+fi
+if test "x$ac_cv_func_fork_works" = xcross; then
+ case $host in
+ *-*-amigaos* | *-*-msdosdjgpp*)
+ # Override, as these systems have only a dummy fork() stub
+ ac_cv_func_fork_works=no
+ ;;
+ *)
+ ac_cv_func_fork_works=yes
+ ;;
+ esac
+ { echo "$as_me:$LINENO: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&5
+echo "$as_me: WARNING: result $ac_cv_func_fork_works guessed because of cross compilation" >&2;}
+fi
+ac_cv_func_vfork_works=$ac_cv_func_vfork
+if test "x$ac_cv_func_vfork" = xyes; then
+ echo "$as_me:$LINENO: checking for working vfork" >&5
+echo $ECHO_N "checking for working vfork... $ECHO_C" >&6
+if test "${ac_cv_func_vfork_works+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$cross_compiling" = yes; then
+ ac_cv_func_vfork_works=cross
else
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
- For example, HP-UX 11i <limits.h> declares gettimeofday. */
-#define $ac_func innocuous_$ac_func
-
-/* System header to define __stub macros and hopefully few prototypes,
- which can conflict with char $ac_func (); below.
- Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
- <limits.h> exists even on freestanding compilers. */
-
-#ifdef __STDC__
-# include <limits.h>
-#else
-# include <assert.h>
-#endif
-
-#undef $ac_func
-
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-{
+/* Thanks to Paul Eggert for this test. */
+#include <stdio.h>
+#include <stdlib.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-char (*f) () = $ac_func;
+#if HAVE_VFORK_H
+# include <vfork.h>
#endif
+/* On some sparc systems, changes by the child to local and incoming
+ argument registers are propagated back to the parent. The compiler
+ is told about this with #include <vfork.h>, but some compilers
+ (e.g. gcc -O) don't grok <vfork.h>. Test for this by using a
+ static variable whose address is put into a register that is
+ clobbered by the vfork. */
+static void
#ifdef __cplusplus
-}
+sparc_address_test (int arg)
+# else
+sparc_address_test (arg) int arg;
#endif
+{
+ static pid_t child;
+ if (!child) {
+ child = vfork ();
+ if (child < 0) {
+ perror ("vfork");
+ _exit(2);
+ }
+ if (!child) {
+ arg = getpid();
+ write(-1, "", 0);
+ _exit (arg);
+ }
+ }
+}
int
main ()
{
-return f != $ac_func;
- ;
- return 0;
+ pid_t parent = getpid ();
+ pid_t child;
+
+ sparc_address_test (0);
+
+ child = vfork ();
+
+ if (child == 0) {
+ /* Here is another test for sparc vfork register problems. This
+ test uses lots of local variables, at least as many local
+ variables as main has allocated so far including compiler
+ temporaries. 4 locals are enough for gcc 1.40.3 on a Solaris
+ 4.1.3 sparc, but we use 8 to be safe. A buggy compiler should
+ reuse the register of parent for one of the local variables,
+ since it will think that parent can't possibly be used any more
+ in this routine. Assigning to the local variable will thus
+ munge parent in the parent process. */
+ pid_t
+ p = getpid(), p1 = getpid(), p2 = getpid(), p3 = getpid(),
+ p4 = getpid(), p5 = getpid(), p6 = getpid(), p7 = getpid();
+ /* Convince the compiler that p..p7 are live; otherwise, it might
+ use the same hardware register for all 8 local variables. */
+ if (p != p1 || p != p2 || p != p3 || p != p4
+ || p != p5 || p != p6 || p != p7)
+ _exit(1);
+
+ /* On some systems (e.g. IRIX 3.3), vfork doesn't separate parent
+ from child file descriptors. If the child closes a descriptor
+ before it execs or exits, this munges the parent's descriptor
+ as well. Test for this by closing stdout in the child. */
+ _exit(close(fileno(stdout)) != 0);
+ } else {
+ int status;
+ struct stat st;
+
+ while (wait(&status) != child)
+ ;
+ exit(
+ /* Was there some problem with vforking? */
+ child < 0
+
+ /* Did the child fail? (This shouldn't happen.) */
+ || status
+
+ /* Did the vfork/compiler bug occur? */
+ || parent != getpid()
+
+ /* Did the file descriptor bug occur? */
+ || fstat(fileno(stdout), &st) != 0
+ );
+ }
}
_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
+rm -f conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_c_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
+ (eval $ac_link) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- eval "$as_ac_var=yes"
+ ac_cv_func_vfork_works=yes
+else
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+( exit $ac_status )
+ac_cv_func_vfork_works=no
+fi
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_vfork_works" >&5
+echo "${ECHO_T}$ac_cv_func_vfork_works" >&6
+
+fi;
+if test "x$ac_cv_func_fork_works" = xcross; then
+ ac_cv_func_vfork_works=$ac_cv_func_vfork
+ { echo "$as_me:$LINENO: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&5
+echo "$as_me: WARNING: result $ac_cv_func_vfork_works guessed because of cross compilation" >&2;}
+fi
+
+if test "x$ac_cv_func_vfork_works" = xyes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_WORKING_VFORK 1
+_ACEOF
+
else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-eval "$as_ac_var=no"
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
+cat >>confdefs.h <<\_ACEOF
+#define vfork fork
+_ACEOF
+
fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
-if test `eval echo '${'$as_ac_var'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+if test "x$ac_cv_func_fork_works" = xyes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_WORKING_FORK 1
_ACEOF
fi
-done
-for ac_func in setpgid setpgrp
+for ac_func in canonicalize_file_name realpath
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
done
-
-
-for ac_func in sigaction sigprocmask sigsetmask
+for ac_func in poll
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
done
-for ac_func in socketpair
+for ac_func in pread64
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
done
-for ac_func in syscall
+for ac_func in sbrk
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
done
-for ac_func in ttrace
+
+for ac_func in setpgid setpgrp
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
done
-for ac_func in wborder
+
+
+for ac_func in sigaction sigprocmask sigsetmask
do
as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
echo "$as_me:$LINENO: checking for $ac_func" >&5
#undef $ac_func
-/* Override any gcc2 internal prototype to avoid an error. */
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-/* We use char because int might match the return type of a gcc2
- builtin and then its argument prototype would still apply. */
-char $ac_func ();
-/* The GNU C library defines this for functions which it implements
- to always fail with ENOSYS. Some functions are actually named
- something starting with __ and the normal name is an alias. */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
-choke me
-#else
-char (*f) () = $ac_func;
-#endif
-#ifdef __cplusplus
-}
-#endif
-
-int
-main ()
-{
-return f != $ac_func;
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_c_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest$ac_exeext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- eval "$as_ac_var=yes"
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-eval "$as_ac_var=no"
-fi
-rm -f conftest.err conftest.$ac_objext \
- conftest$ac_exeext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
-if test `eval echo '${'$as_ac_var'}'` = yes; then
- cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
-_ACEOF
-
-fi
-done
-
-
-# Check the return and argument types of ptrace. No canned test for
-# this, so roll our own.
-gdb_ptrace_headers='
-#if HAVE_SYS_TYPES_H
-# include <sys/types.h>
-#endif
-#if HAVE_SYS_PTRACE_H
-# include <sys/ptrace.h>
-#endif
-#if HAVE_UNISTD_H
-# include <unistd.h>
-#endif
-'
-# There is no point in checking if we don't have a prototype.
-for ac_func in ptrace
-do
- ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-echo "$as_me:$LINENO: checking whether $ac_func is declared" >&5
-echo $ECHO_N "checking whether $ac_func is declared... $ECHO_C" >&6
-if eval "test \"\${gcc_cv_have_decl_$ac_func+set}\" = set"; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#undef $ac_tr_decl
-#define $ac_tr_decl 1
- $gdb_ptrace_headers
-
-int
-main ()
-{
-#ifndef $ac_func
-char *(*pfn) = (char *(*)) $ac_func ;
-#endif
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_c_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- eval "gcc_cv_have_decl_$ac_func=yes"
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-eval "gcc_cv_have_decl_$ac_func=no"
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-if eval "test \"`echo '$gcc_cv_have_decl_'$ac_func`\" = yes"; then
- echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6 ; cat >>confdefs.h <<_ACEOF
-#define $ac_tr_decl 1
-_ACEOF
-
-else
- echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6 ; cat >>confdefs.h <<_ACEOF
-#define $ac_tr_decl 0
-_ACEOF
-
- : ${gdb_cv_func_ptrace_ret='int'}
- : ${gdb_cv_func_ptrace_args='int,int,long,long'}
-
-fi
-
-done
-if test x = y ; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_DECL_PTRACE 1
-_ACEOF
-fi
-
-# Check return type.
-echo "$as_me:$LINENO: checking return type of ptrace" >&5
-echo $ECHO_N "checking return type of ptrace... $ECHO_C" >&6
-if test "${gdb_cv_func_ptrace_ret+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$gdb_ptrace_headers
-int
-main ()
-{
-extern int ptrace ();
- ;
- return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_c_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
- ac_status=$?
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; }; then
- gdb_cv_func_ptrace_ret='int'
-else
- echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-gdb_cv_func_ptrace_ret='long'
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: $gdb_cv_func_ptrace_ret" >&5
-echo "${ECHO_T}$gdb_cv_func_ptrace_ret" >&6
-
-cat >>confdefs.h <<_ACEOF
-#define PTRACE_TYPE_RET $gdb_cv_func_ptrace_ret
-_ACEOF
-
-# Check argument types.
-echo "$as_me:$LINENO: checking types of arguments for ptrace" >&5
-echo $ECHO_N "checking types of arguments for ptrace... $ECHO_C" >&6
-if test "${gdb_cv_func_ptrace_args+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-
-for gdb_arg1 in 'int' 'long'; do
- for gdb_arg2 in 'pid_t' 'int' 'long'; do
- for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long'; do
- for gdb_arg4 in 'int' 'long'; do
- cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-$gdb_ptrace_headers
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
int
main ()
{
-
-extern $gdb_cv_func_ptrace_ret
- ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
-
+return f != $ac_func;
;
return 0;
}
_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
+ { ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
- break 4;
+ eval "$as_ac_var=yes"
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
+eval "$as_ac_var=no"
+fi
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
- for gdb_arg5 in 'int *' 'int' 'long'; do
- cat >conftest.$ac_ext <<_ACEOF
+done
+
+
+for ac_func in socketpair
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+ echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-$gdb_ptrace_headers
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
int
main ()
{
-
-extern $gdb_cv_func_ptrace_ret
- ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
-
+return f != $ac_func;
;
return 0;
}
_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
+ { ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
-
-gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
- break 5;
+ eval "$as_ac_var=yes"
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
+eval "$as_ac_var=no"
fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
- done
- done
- done
- done
-done
-# Provide a safe default value.
-: ${gdb_cv_func_ptrace_args='int,int,long,long'}
-
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $gdb_cv_func_ptrace_args" >&5
-echo "${ECHO_T}$gdb_cv_func_ptrace_args" >&6
-ac_save_IFS=$IFS; IFS=','
-set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
-IFS=$ac_save_IFS
-shift
-
-cat >>confdefs.h <<_ACEOF
-#define PTRACE_TYPE_ARG3 $3
-_ACEOF
-
-if test -n "$5"; then
-
-cat >>confdefs.h <<_ACEOF
-#define PTRACE_TYPE_ARG5 $5
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF
fi
+done
-if test "$cross_compiling" = no; then
- echo "$as_me:$LINENO: checking whether setpgrp takes no argument" >&5
-echo $ECHO_N "checking whether setpgrp takes no argument... $ECHO_C" >&6
-if test "${ac_cv_func_setpgrp_void+set}" = set; then
+
+for ac_func in syscall
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- if test "$cross_compiling" = yes; then
- { { echo "$as_me:$LINENO: error: cannot check setpgrp when cross compiling" >&5
-echo "$as_me: error: cannot check setpgrp when cross compiling" >&2;}
- { (exit 1); exit 1; }; }
else
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#if HAVE_UNISTD_H
-# include <unistd.h>
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
#endif
int
main ()
{
-/* If this system has a BSD-style setpgrp which takes arguments,
- setpgrp(1, 1) will fail with ESRCH and return -1, in that case
- exit successfully. */
- exit (setpgrp (1,1) == -1 ? 0 : 1);
+return f != $ac_func;
;
return 0;
}
_ACEOF
-rm -f conftest$ac_exeext
+rm -f conftest.$ac_objext conftest$ac_exeext
if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
- (eval $ac_link) 2>&5
+ (eval $ac_link) 2>conftest.er1
ac_status=$?
+ grep -v '^ *+' conftest.er1 >conftest.err
+ rm -f conftest.er1
+ cat conftest.err >&5
echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+ (exit $ac_status); } &&
+ { ac_try='test -z "$ac_c_werror_flag"
+ || test ! -s conftest.err'
+ { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); }; } &&
+ { ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_func_setpgrp_void=no
+ eval "$as_ac_var=yes"
else
- echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
+ echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-( exit $ac_status )
-ac_cv_func_setpgrp_void=yes
-fi
-rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
+eval "$as_ac_var=no"
fi
-echo "$as_me:$LINENO: result: $ac_cv_func_setpgrp_void" >&5
-echo "${ECHO_T}$ac_cv_func_setpgrp_void" >&6
-if test $ac_cv_func_setpgrp_void = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define SETPGRP_VOID 1
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF
fi
+done
-else
- echo "$as_me:$LINENO: checking whether setpgrp takes no argument" >&5
-echo $ECHO_N "checking whether setpgrp takes no argument... $ECHO_C" >&6
-if test "${ac_cv_func_setpgrp_void+set}" = set; then
+
+for ac_func in ttrace
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
-#include <unistd.h>
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
int
main ()
{
-
- if (setpgrp(1,1) == -1)
- exit (0);
- else
- exit (1);
-
+return f != $ac_func;
;
return 0;
}
_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
+ { ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- ac_cv_func_setpgrp_void=no
+ eval "$as_ac_var=yes"
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-ac_cv_func_setpgrp_void=yes
+eval "$as_ac_var=no"
fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $ac_cv_func_setpgrp_void" >&5
-echo "${ECHO_T}$ac_cv_func_setpgrp_void" >&6
-if test $ac_cv_func_setpgrp_void = yes; then
- cat >>confdefs.h <<\_ACEOF
-#define SETPGRP_VOID 1
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF
fi
-fi
+done
-# Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't do
-# since sigsetjmp might only be defined as a macro.
-echo "$as_me:$LINENO: checking for sigsetjmp" >&5
-echo $ECHO_N "checking for sigsetjmp... $ECHO_C" >&6
-if test "${gdb_cv_func_sigsetjmp+set}" = set; then
+
+for ac_func in wborder
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:$LINENO: checking for $ac_func" >&5
+echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
+/* Define $ac_func to an innocuous variant, in case <limits.h> declares $ac_func.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $ac_func innocuous_$ac_func
-#include <setjmp.h>
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $ac_func (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $ac_func
+
+/* Override any gcc2 internal prototype to avoid an error. */
+#ifdef __cplusplus
+extern "C"
+{
+#endif
+/* We use char because int might match the return type of a gcc2
+ builtin and then its argument prototype would still apply. */
+char $ac_func ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+char (*f) () = $ac_func;
+#endif
+#ifdef __cplusplus
+}
+#endif
int
main ()
{
-sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);
+return f != $ac_func;
;
return 0;
}
_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>conftest.er1
ac_status=$?
grep -v '^ *+' conftest.er1 >conftest.err
rm -f conftest.er1
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
+ { ac_try='test -s conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_func_sigsetjmp=yes
+ eval "$as_ac_var=yes"
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_func_sigsetjmp=no
+eval "$as_ac_var=no"
fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $gdb_cv_func_sigsetjmp" >&5
-echo "${ECHO_T}$gdb_cv_func_sigsetjmp" >&6
-if test $gdb_cv_func_sigsetjmp = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_SIGSETJMP 1
+echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+ cat >>confdefs.h <<_ACEOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
_ACEOF
fi
+done
-# Assume we'll default to using the included libiberty regex.
-gdb_use_included_regex=yes
-# However, if the system regex is GNU regex, then default to *not*
-# using the included regex.
-echo "$as_me:$LINENO: checking for GNU regex" >&5
-echo $ECHO_N "checking for GNU regex... $ECHO_C" >&6
-if test "${gdb_cv_have_gnu_regex+set}" = set; then
+# Check the return and argument types of ptrace. No canned test for
+# this, so roll our own.
+gdb_ptrace_headers='
+#if HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#if HAVE_SYS_PTRACE_H
+# include <sys/ptrace.h>
+#endif
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+'
+# There is no point in checking if we don't have a prototype.
+echo "$as_me:$LINENO: checking whether ptrace is declared" >&5
+echo $ECHO_N "checking whether ptrace is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_ptrace+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <gnu-versions.h>
+$gdb_ptrace_headers
+
int
main ()
{
-#define REGEX_INTERFACE_VERSION 1
-#if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
-# error "Version mismatch"
+#ifndef ptrace
+ char *p = (char *) ptrace;
#endif
+
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_have_gnu_regex=yes
+ ac_cv_have_decl_ptrace=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_have_gnu_regex=no
+ac_cv_have_decl_ptrace=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $gdb_cv_have_gnu_regex" >&5
-echo "${ECHO_T}$gdb_cv_have_gnu_regex" >&6
-if test $gdb_cv_have_gnu_regex = yes; then
- gdb_use_included_regex=no
-fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_ptrace" >&5
+echo "${ECHO_T}$ac_cv_have_decl_ptrace" >&6
+if test $ac_cv_have_decl_ptrace = yes; then
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_PTRACE 1
+_ACEOF
-# Check whether --with-included-regex or --without-included-regex was given.
-if test "${with_included_regex+set}" = set; then
- withval="$with_included_regex"
- gdb_with_regex=$withval
-else
- gdb_with_regex=$gdb_use_included_regex
-fi;
-if test "$gdb_with_regex" = yes; then
-cat >>confdefs.h <<\_ACEOF
-#define USE_INCLUDED_REGEX 1
+else
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_PTRACE 0
_ACEOF
+
+ : ${gdb_cv_func_ptrace_ret='int'}
+ : ${gdb_cv_func_ptrace_args='int,int,long,long'}
+
fi
-# See if <sys/proc.h> defines `struct thread' with a td_pcb member.
-echo "$as_me:$LINENO: checking for td_pcb in struct thread" >&5
-echo $ECHO_N "checking for td_pcb in struct thread... $ECHO_C" >&6
-if test "${gdb_cv_struct_thread_td_pcb+set}" = set; then
+
+# Check return type.
+echo "$as_me:$LINENO: checking return type of ptrace" >&5
+echo $ECHO_N "checking return type of ptrace... $ECHO_C" >&6
+if test "${gdb_cv_func_ptrace_ret+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <sys/param.h>
-#include <sys/proc.h>
+$gdb_ptrace_headers
int
main ()
{
-struct thread td; td.td_pcb;
+extern int ptrace ();
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_struct_thread_td_pcb=yes
+ gdb_cv_func_ptrace_ret='int'
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_struct_thread_td_pcb=no
+gdb_cv_func_ptrace_ret='long'
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $gdb_cv_struct_thread_td_pcb" >&5
-echo "${ECHO_T}$gdb_cv_struct_thread_td_pcb" >&6
-if test $gdb_cv_struct_thread_td_pcb = yes; then
+echo "$as_me:$LINENO: result: $gdb_cv_func_ptrace_ret" >&5
+echo "${ECHO_T}$gdb_cv_func_ptrace_ret" >&6
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_STRUCT_THREAD_TD_PCB 1
+cat >>confdefs.h <<_ACEOF
+#define PTRACE_TYPE_RET $gdb_cv_func_ptrace_ret
_ACEOF
-fi
-
-# See if <sys/lwp.h> defines `struct lwp`.
-echo "$as_me:$LINENO: checking for struct lwp" >&5
-echo $ECHO_N "checking for struct lwp... $ECHO_C" >&6
-if test "${gdb_cv_struct_lwp+set}" = set; then
+# Check argument types.
+echo "$as_me:$LINENO: checking types of arguments for ptrace" >&5
+echo $ECHO_N "checking types of arguments for ptrace... $ECHO_C" >&6
+if test "${gdb_cv_func_ptrace_args+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
- cat >conftest.$ac_ext <<_ACEOF
+
+for gdb_arg1 in 'int' 'long'; do
+ for gdb_arg2 in 'pid_t' 'int' 'long'; do
+ for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long'; do
+ for gdb_arg4 in 'int' 'long'; do
+ cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <sys/param.h>
-#include <sys/lwp.h>
+$gdb_ptrace_headers
int
main ()
{
-struct lwp l;
+
+extern $gdb_cv_func_ptrace_ret
+ ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
+
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_struct_lwp=yes
+ gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
+ break 4;
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_struct_lwp=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-echo "$as_me:$LINENO: result: $gdb_cv_struct_lwp" >&5
-echo "${ECHO_T}$gdb_cv_struct_lwp" >&6
-if test $gdb_cv_struct_lwp = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_STRUCT_LWP 1
-_ACEOF
-
-fi
-
-# See if <machine/reg.h> degines `struct reg'.
-echo "$as_me:$LINENO: checking for struct reg in machine/reg.h" >&5
-echo $ECHO_N "checking for struct reg in machine/reg.h... $ECHO_C" >&6
-if test "${gdb_cv_struct_reg+set}" = set; then
- echo $ECHO_N "(cached) $ECHO_C" >&6
-else
- cat >conftest.$ac_ext <<_ACEOF
+ for gdb_arg5 in 'int *' 'int' 'long'; do
+ cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <sys/types.h>
-#include <machine/reg.h>
+$gdb_ptrace_headers
int
main ()
{
-struct reg r;
+
+extern $gdb_cv_func_ptrace_ret
+ ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
+
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_struct_reg=yes
+
+gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
+ break 5;
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_struct_reg=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+ done
+ done
+ done
+ done
+done
+# Provide a safe default value.
+: ${gdb_cv_func_ptrace_args='int,int,long,long'}
+
fi
-echo "$as_me:$LINENO: result: $gdb_cv_struct_reg" >&5
-echo "${ECHO_T}$gdb_cv_struct_reg" >&6
-if test $gdb_cv_struct_reg = yes; then
+echo "$as_me:$LINENO: result: $gdb_cv_func_ptrace_args" >&5
+echo "${ECHO_T}$gdb_cv_func_ptrace_args" >&6
+ac_save_IFS=$IFS; IFS=','
+set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
+IFS=$ac_save_IFS
+shift
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_STRUCT_REG 1
+cat >>confdefs.h <<_ACEOF
+#define PTRACE_TYPE_ARG3 $3
+_ACEOF
+
+if test -n "$5"; then
+
+cat >>confdefs.h <<_ACEOF
+#define PTRACE_TYPE_ARG5 $5
_ACEOF
fi
-# See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
-# Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
-echo "$as_me:$LINENO: checking for r_fs in struct reg" >&5
-echo $ECHO_N "checking for r_fs in struct reg... $ECHO_C" >&6
-if test "${gdb_cv_struct_reg_r_fs+set}" = set; then
+if test "$cross_compiling" = no; then
+ echo "$as_me:$LINENO: checking whether setpgrp takes no argument" >&5
+echo $ECHO_N "checking whether setpgrp takes no argument... $ECHO_C" >&6
+if test "${ac_cv_func_setpgrp_void+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+ if test "$cross_compiling" = yes; then
+ { { echo "$as_me:$LINENO: error: cannot check setpgrp when cross compiling" >&5
+echo "$as_me: error: cannot check setpgrp when cross compiling" >&2;}
+ { (exit 1); exit 1; }; }
else
cat >conftest.$ac_ext <<_ACEOF
/* confdefs.h. */
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <machine/reg.h>
+#if HAVE_UNISTD_H
+# include <unistd.h>
+#endif
+
int
main ()
{
-struct reg r; r.r_fs;
+/* If this system has a BSD-style setpgrp which takes arguments,
+ setpgrp(1, 1) will fail with ESRCH and return -1, in that case
+ exit successfully. */
+ exit (setpgrp (1,1) == -1 ? 0 : 1);
;
return 0;
}
_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
- (eval $ac_compile) 2>conftest.er1
- ac_status=$?
- grep -v '^ *+' conftest.er1 >conftest.err
- rm -f conftest.er1
- cat conftest.err >&5
- echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); } &&
- { ac_try='test -z "$ac_c_werror_flag"
- || test ! -s conftest.err'
- { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
- (eval $ac_try) 2>&5
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+ (eval $ac_link) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
- (exit $ac_status); }; } &&
- { ac_try='test -s conftest.$ac_objext'
+ (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
{ (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
(eval $ac_try) 2>&5
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_struct_reg_r_fs=yes
+ ac_cv_func_setpgrp_void=no
else
- echo "$as_me: failed program was:" >&5
+ echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_struct_reg_r_fs=no
+( exit $ac_status )
+ac_cv_func_setpgrp_void=yes
fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $gdb_cv_struct_reg_r_fs" >&5
-echo "${ECHO_T}$gdb_cv_struct_reg_r_fs" >&6
-if test $gdb_cv_struct_reg_r_fs = yes; then
- cat >>confdefs.h <<\_ACEOF
-#define HAVE_STRUCT_REG_R_FS 1
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_setpgrp_void" >&5
+echo "${ECHO_T}$ac_cv_func_setpgrp_void" >&6
+if test $ac_cv_func_setpgrp_void = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define SETPGRP_VOID 1
_ACEOF
fi
-echo "$as_me:$LINENO: checking for r_gs in struct reg" >&5
-echo $ECHO_N "checking for r_gs in struct reg... $ECHO_C" >&6
-if test "${gdb_cv_struct_reg_r_gs+set}" = set; then
+
+else
+ echo "$as_me:$LINENO: checking whether setpgrp takes no argument" >&5
+echo $ECHO_N "checking whether setpgrp takes no argument... $ECHO_C" >&6
+if test "${ac_cv_func_setpgrp_void+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <machine/reg.h>
+
+#include <unistd.h>
+
int
main ()
{
-struct reg r; r.r_gs;
+
+ if (setpgrp(1,1) == -1)
+ exit (0);
+ else
+ exit (1);
+
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_struct_reg_r_gs=yes
+ ac_cv_func_setpgrp_void=no
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_struct_reg_r_gs=no
+ac_cv_func_setpgrp_void=yes
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $gdb_cv_struct_reg_r_gs" >&5
-echo "${ECHO_T}$gdb_cv_struct_reg_r_gs" >&6
-if test $gdb_cv_struct_reg_r_gs = yes; then
+echo "$as_me:$LINENO: result: $ac_cv_func_setpgrp_void" >&5
+echo "${ECHO_T}$ac_cv_func_setpgrp_void" >&6
+if test $ac_cv_func_setpgrp_void = yes; then
cat >>confdefs.h <<\_ACEOF
-#define HAVE_STRUCT_REG_R_GS 1
+#define SETPGRP_VOID 1
_ACEOF
+fi
fi
-# See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
-echo "$as_me:$LINENO: checking for PTRACE_GETREGS" >&5
-echo $ECHO_N "checking for PTRACE_GETREGS... $ECHO_C" >&6
-if test "${gdb_cv_have_ptrace_getregs+set}" = set; then
+# Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't do
+# since sigsetjmp might only be defined as a macro.
+echo "$as_me:$LINENO: checking for sigsetjmp" >&5
+echo $ECHO_N "checking for sigsetjmp... $ECHO_C" >&6
+if test "${gdb_cv_func_sigsetjmp+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <sys/ptrace.h>
+
+#include <setjmp.h>
+
int
main ()
{
-PTRACE_GETREGS;
+sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_have_ptrace_getregs=yes
+ gdb_cv_func_sigsetjmp=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_have_ptrace_getregs=no
+gdb_cv_func_sigsetjmp=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
+echo "$as_me:$LINENO: result: $gdb_cv_func_sigsetjmp" >&5
+echo "${ECHO_T}$gdb_cv_func_sigsetjmp" >&6
+if test $gdb_cv_func_sigsetjmp = yes; then
-echo "$as_me:$LINENO: result: $gdb_cv_have_ptrace_getregs" >&5
-echo "${ECHO_T}$gdb_cv_have_ptrace_getregs" >&6
-if test $gdb_cv_have_ptrace_getregs = yes; then
- cat >>confdefs.h <<\_ACEOF
-#define HAVE_PTRACE_GETREGS 1
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_SIGSETJMP 1
_ACEOF
fi
-# See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
-echo "$as_me:$LINENO: checking for PTRACE_GETFPXREGS" >&5
-echo $ECHO_N "checking for PTRACE_GETFPXREGS... $ECHO_C" >&6
-if test "${gdb_cv_have_ptrace_getfpxregs+set}" = set; then
+# Assume we'll default to using the included libiberty regex.
+gdb_use_included_regex=yes
+
+# However, if the system regex is GNU regex, then default to *not*
+# using the included regex.
+echo "$as_me:$LINENO: checking for GNU regex" >&5
+echo $ECHO_N "checking for GNU regex... $ECHO_C" >&6
+if test "${gdb_cv_have_gnu_regex+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <sys/ptrace.h>
+#include <gnu-versions.h>
int
main ()
{
-PTRACE_GETFPXREGS;
+#define REGEX_INTERFACE_VERSION 1
+#if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
+# error "Version mismatch"
+#endif
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_have_ptrace_getfpxregs=yes
+ gdb_cv_have_gnu_regex=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_have_ptrace_getfpxregs=no
+gdb_cv_have_gnu_regex=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
+echo "$as_me:$LINENO: result: $gdb_cv_have_gnu_regex" >&5
+echo "${ECHO_T}$gdb_cv_have_gnu_regex" >&6
+if test $gdb_cv_have_gnu_regex = yes; then
+ gdb_use_included_regex=no
+fi
-echo "$as_me:$LINENO: result: $gdb_cv_have_ptrace_getfpxregs" >&5
-echo "${ECHO_T}$gdb_cv_have_ptrace_getfpxregs" >&6
-if test $gdb_cv_have_ptrace_getfpxregs = yes; then
- cat >>confdefs.h <<\_ACEOF
-#define HAVE_PTRACE_GETFPXREGS 1
+
+# Check whether --with-included-regex or --without-included-regex was given.
+if test "${with_included_regex+set}" = set; then
+ withval="$with_included_regex"
+ gdb_with_regex=$withval
+else
+ gdb_with_regex=$gdb_use_included_regex
+fi;
+if test "$gdb_with_regex" = yes; then
+
+cat >>confdefs.h <<\_ACEOF
+#define USE_INCLUDED_REGEX 1
_ACEOF
fi
-# See if <sys/ptrace.h> provides the PT_GETDBREGS request.
-echo "$as_me:$LINENO: checking for PT_GETDBREGS" >&5
-echo $ECHO_N "checking for PT_GETDBREGS... $ECHO_C" >&6
-if test "${gdb_cv_have_pt_getdbregs+set}" = set; then
+# See if <sys/proc.h> defines `struct thread' with a td_pcb member.
+echo "$as_me:$LINENO: checking for td_pcb in struct thread" >&5
+echo $ECHO_N "checking for td_pcb in struct thread... $ECHO_C" >&6
+if test "${gdb_cv_struct_thread_td_pcb+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <sys/types.h>
-#include <sys/ptrace.h>
+#include <sys/param.h>
+#include <sys/proc.h>
int
main ()
{
-PT_GETDBREGS;
+struct thread td; td.td_pcb;
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_have_pt_getdbregs=yes
+ gdb_cv_struct_thread_td_pcb=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_have_pt_getdbregs=no
+gdb_cv_struct_thread_td_pcb=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
+echo "$as_me:$LINENO: result: $gdb_cv_struct_thread_td_pcb" >&5
+echo "${ECHO_T}$gdb_cv_struct_thread_td_pcb" >&6
+if test $gdb_cv_struct_thread_td_pcb = yes; then
-echo "$as_me:$LINENO: result: $gdb_cv_have_pt_getdbregs" >&5
-echo "${ECHO_T}$gdb_cv_have_pt_getdbregs" >&6
-if test $gdb_cv_have_pt_getdbregs = yes; then
- cat >>confdefs.h <<\_ACEOF
-#define HAVE_PT_GETDBREGS 1
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_STRUCT_THREAD_TD_PCB 1
_ACEOF
fi
-# See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
-echo "$as_me:$LINENO: checking for PT_GETXMMREGS" >&5
-echo $ECHO_N "checking for PT_GETXMMREGS... $ECHO_C" >&6
-if test "${gdb_cv_have_pt_getxmmregs+set}" = set; then
+# See if <sys/lwp.h> defines `struct lwp`.
+echo "$as_me:$LINENO: checking for struct lwp" >&5
+echo $ECHO_N "checking for struct lwp... $ECHO_C" >&6
+if test "${gdb_cv_struct_lwp+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <sys/types.h>
-#include <sys/ptrace.h>
+#include <sys/param.h>
+#include <sys/lwp.h>
int
main ()
{
-PT_GETXMMREGS;
+struct lwp l;
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_have_pt_getxmmregs=yes
+ gdb_cv_struct_lwp=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_have_pt_getxmmregs=no
+gdb_cv_struct_lwp=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
+echo "$as_me:$LINENO: result: $gdb_cv_struct_lwp" >&5
+echo "${ECHO_T}$gdb_cv_struct_lwp" >&6
+if test $gdb_cv_struct_lwp = yes; then
-echo "$as_me:$LINENO: result: $gdb_cv_have_pt_getxmmregs" >&5
-echo "${ECHO_T}$gdb_cv_have_pt_getxmmregs" >&6
-if test $gdb_cv_have_pt_getxmmregs = yes; then
- cat >>confdefs.h <<\_ACEOF
-#define HAVE_PT_GETXMMREGS 1
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_STRUCT_LWP 1
_ACEOF
fi
-# See if stdint.h provides the uintptr_t type.
-# Autoconf 2.5X has an improved AC_CHECK_TYPE which will simplify this.
-echo "$as_me:$LINENO: checking for uintptr_t in stdint.h" >&5
-echo $ECHO_N "checking for uintptr_t in stdint.h... $ECHO_C" >&6
-if test "${gdb_cv_have_uintptr_t+set}" = set; then
+# See if <machine/reg.h> degines `struct reg'.
+echo "$as_me:$LINENO: checking for struct reg in machine/reg.h" >&5
+echo $ECHO_N "checking for struct reg in machine/reg.h... $ECHO_C" >&6
+if test "${gdb_cv_struct_reg+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-#include <stdint.h>
+#include <sys/types.h>
+#include <machine/reg.h>
int
main ()
{
-uintptr_t foo = 0;
+struct reg r;
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- gdb_cv_have_uintptr_t=yes
+ gdb_cv_struct_reg=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-gdb_cv_have_uintptr_t=no
+gdb_cv_struct_reg=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $gdb_cv_have_uintptr_t" >&5
-echo "${ECHO_T}$gdb_cv_have_uintptr_t" >&6
-if test $gdb_cv_have_uintptr_t = yes; then
+echo "$as_me:$LINENO: result: $gdb_cv_struct_reg" >&5
+echo "${ECHO_T}$gdb_cv_struct_reg" >&6
+if test $gdb_cv_struct_reg = yes; then
cat >>confdefs.h <<\_ACEOF
-#define HAVE_UINTPTR_T 1
+#define HAVE_STRUCT_REG 1
_ACEOF
fi
-echo "$as_me:$LINENO: checking whether malloc must be declared" >&5
-echo $ECHO_N "checking whether malloc must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_malloc+set}" = set; then
+# See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
+# Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
+echo "$as_me:$LINENO: checking for r_fs in struct reg" >&5
+echo $ECHO_N "checking for r_fs in struct reg... $ECHO_C" >&6
+if test "${gdb_cv_struct_reg_r_fs+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
+#include <machine/reg.h>
int
main ()
{
-char *(*pfn) = (char *(*)) malloc
+struct reg r; r.r_fs;
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- bfd_cv_decl_needed_malloc=no
+ gdb_cv_struct_reg_r_fs=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-bfd_cv_decl_needed_malloc=yes
+gdb_cv_struct_reg_r_fs=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_malloc" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_malloc" >&6
-if test $bfd_cv_decl_needed_malloc = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_MALLOC 1
+echo "$as_me:$LINENO: result: $gdb_cv_struct_reg_r_fs" >&5
+echo "${ECHO_T}$gdb_cv_struct_reg_r_fs" >&6
+if test $gdb_cv_struct_reg_r_fs = yes; then
+ cat >>confdefs.h <<\_ACEOF
+#define HAVE_STRUCT_REG_R_FS 1
_ACEOF
fi
-
-echo "$as_me:$LINENO: checking whether realloc must be declared" >&5
-echo $ECHO_N "checking whether realloc must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_realloc+set}" = set; then
+echo "$as_me:$LINENO: checking for r_gs in struct reg" >&5
+echo $ECHO_N "checking for r_gs in struct reg... $ECHO_C" >&6
+if test "${gdb_cv_struct_reg_r_gs+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
+#include <machine/reg.h>
int
main ()
{
-char *(*pfn) = (char *(*)) realloc
+struct reg r; r.r_gs;
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- bfd_cv_decl_needed_realloc=no
+ gdb_cv_struct_reg_r_gs=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-bfd_cv_decl_needed_realloc=yes
+gdb_cv_struct_reg_r_gs=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_realloc" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_realloc" >&6
-if test $bfd_cv_decl_needed_realloc = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_REALLOC 1
+echo "$as_me:$LINENO: result: $gdb_cv_struct_reg_r_gs" >&5
+echo "${ECHO_T}$gdb_cv_struct_reg_r_gs" >&6
+if test $gdb_cv_struct_reg_r_gs = yes; then
+ cat >>confdefs.h <<\_ACEOF
+#define HAVE_STRUCT_REG_R_GS 1
_ACEOF
fi
-echo "$as_me:$LINENO: checking whether free must be declared" >&5
-echo $ECHO_N "checking whether free must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_free+set}" = set; then
+# See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
+echo "$as_me:$LINENO: checking for PTRACE_GETREGS" >&5
+echo $ECHO_N "checking for PTRACE_GETREGS... $ECHO_C" >&6
+if test "${gdb_cv_have_ptrace_getregs+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
+#include <sys/ptrace.h>
int
main ()
{
-char *(*pfn) = (char *(*)) free
+PTRACE_GETREGS;
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- bfd_cv_decl_needed_free=no
+ gdb_cv_have_ptrace_getregs=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-bfd_cv_decl_needed_free=yes
+gdb_cv_have_ptrace_getregs=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_free" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_free" >&6
-if test $bfd_cv_decl_needed_free = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_FREE 1
+echo "$as_me:$LINENO: result: $gdb_cv_have_ptrace_getregs" >&5
+echo "${ECHO_T}$gdb_cv_have_ptrace_getregs" >&6
+if test $gdb_cv_have_ptrace_getregs = yes; then
+ cat >>confdefs.h <<\_ACEOF
+#define HAVE_PTRACE_GETREGS 1
_ACEOF
fi
-echo "$as_me:$LINENO: checking whether strerror must be declared" >&5
-echo $ECHO_N "checking whether strerror must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_strerror+set}" = set; then
+# See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
+echo "$as_me:$LINENO: checking for PTRACE_GETFPXREGS" >&5
+echo $ECHO_N "checking for PTRACE_GETFPXREGS... $ECHO_C" >&6
+if test "${gdb_cv_have_ptrace_getfpxregs+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
+#include <sys/ptrace.h>
int
main ()
{
-char *(*pfn) = (char *(*)) strerror
+PTRACE_GETFPXREGS;
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- bfd_cv_decl_needed_strerror=no
+ gdb_cv_have_ptrace_getfpxregs=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-bfd_cv_decl_needed_strerror=yes
+gdb_cv_have_ptrace_getfpxregs=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_strerror" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_strerror" >&6
-if test $bfd_cv_decl_needed_strerror = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_STRERROR 1
+echo "$as_me:$LINENO: result: $gdb_cv_have_ptrace_getfpxregs" >&5
+echo "${ECHO_T}$gdb_cv_have_ptrace_getfpxregs" >&6
+if test $gdb_cv_have_ptrace_getfpxregs = yes; then
+ cat >>confdefs.h <<\_ACEOF
+#define HAVE_PTRACE_GETFPXREGS 1
_ACEOF
fi
-echo "$as_me:$LINENO: checking whether strdup must be declared" >&5
-echo $ECHO_N "checking whether strdup must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_strdup+set}" = set; then
+# See if <sys/ptrace.h> provides the PT_GETDBREGS request.
+echo "$as_me:$LINENO: checking for PT_GETDBREGS" >&5
+echo $ECHO_N "checking for PT_GETDBREGS... $ECHO_C" >&6
+if test "${gdb_cv_have_pt_getdbregs+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
+#include <sys/types.h>
+#include <sys/ptrace.h>
int
main ()
{
-char *(*pfn) = (char *(*)) strdup
+PT_GETDBREGS;
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- bfd_cv_decl_needed_strdup=no
+ gdb_cv_have_pt_getdbregs=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-bfd_cv_decl_needed_strdup=yes
+gdb_cv_have_pt_getdbregs=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_strdup" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_strdup" >&6
-if test $bfd_cv_decl_needed_strdup = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_STRDUP 1
+echo "$as_me:$LINENO: result: $gdb_cv_have_pt_getdbregs" >&5
+echo "${ECHO_T}$gdb_cv_have_pt_getdbregs" >&6
+if test $gdb_cv_have_pt_getdbregs = yes; then
+ cat >>confdefs.h <<\_ACEOF
+#define HAVE_PT_GETDBREGS 1
_ACEOF
fi
-echo "$as_me:$LINENO: checking whether strstr must be declared" >&5
-echo $ECHO_N "checking whether strstr must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_strstr+set}" = set; then
+# See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
+echo "$as_me:$LINENO: checking for PT_GETXMMREGS" >&5
+echo $ECHO_N "checking for PT_GETXMMREGS... $ECHO_C" >&6
+if test "${gdb_cv_have_pt_getxmmregs+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
+#include <sys/types.h>
+#include <sys/ptrace.h>
int
main ()
{
-char *(*pfn) = (char *(*)) strstr
+PT_GETXMMREGS;
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- bfd_cv_decl_needed_strstr=no
+ gdb_cv_have_pt_getxmmregs=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-bfd_cv_decl_needed_strstr=yes
+gdb_cv_have_pt_getxmmregs=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_strstr" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_strstr" >&6
-if test $bfd_cv_decl_needed_strstr = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_STRSTR 1
+echo "$as_me:$LINENO: result: $gdb_cv_have_pt_getxmmregs" >&5
+echo "${ECHO_T}$gdb_cv_have_pt_getxmmregs" >&6
+if test $gdb_cv_have_pt_getxmmregs = yes; then
+ cat >>confdefs.h <<\_ACEOF
+#define HAVE_PT_GETXMMREGS 1
_ACEOF
fi
-echo "$as_me:$LINENO: checking whether canonicalize_file_name must be declared" >&5
-echo $ECHO_N "checking whether canonicalize_file_name must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_canonicalize_file_name+set}" = set; then
+# See if stdint.h provides the uintptr_t type.
+# Autoconf 2.5X has an improved AC_CHECK_TYPE which will simplify this.
+echo "$as_me:$LINENO: checking for uintptr_t in stdint.h" >&5
+echo $ECHO_N "checking for uintptr_t in stdint.h... $ECHO_C" >&6
+if test "${gdb_cv_have_uintptr_t+set}" = set; then
echo $ECHO_N "(cached) $ECHO_C" >&6
else
cat >conftest.$ac_ext <<_ACEOF
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
+#include <stdint.h>
int
main ()
{
-char *(*pfn) = (char *(*)) canonicalize_file_name
+uintptr_t foo = 0;
;
return 0;
}
ac_status=$?
echo "$as_me:$LINENO: \$? = $ac_status" >&5
(exit $ac_status); }; }; then
- bfd_cv_decl_needed_canonicalize_file_name=no
+ gdb_cv_have_uintptr_t=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-bfd_cv_decl_needed_canonicalize_file_name=yes
+gdb_cv_have_uintptr_t=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_canonicalize_file_name" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_canonicalize_file_name" >&6
-if test $bfd_cv_decl_needed_canonicalize_file_name = yes; then
+echo "$as_me:$LINENO: result: $gdb_cv_have_uintptr_t" >&5
+echo "${ECHO_T}$gdb_cv_have_uintptr_t" >&6
+if test $gdb_cv_have_uintptr_t = yes; then
cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_CANONICALIZE_FILE_NAME 1
+#define HAVE_UINTPTR_T 1
_ACEOF
fi
-
# If we are configured native on GNU/Linux, work around problems with
# sys/procfs.h
# Also detect which type of /proc is in use, such as for Unixware or Solaris.
projects / binutils-gdb.git / commitdiff