From: Paolo Bonzini Date: Thu, 27 Mar 2008 09:46:19 +0000 (+0000) Subject: extensions.m4: New. X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=60d2695833eb71a194c6dda412deaa676a98de30;p=gcc.git extensions.m4: New. config: 2008-03-27 Paolo Bonzini * extensions.m4: New. gcc: 2008-03-27 Paolo Bonzini * configure.ac: Replace custom __GNU_SOURCE test with AC_USE_SYSTEM_EXTENSIONS. Move it earlier. * aclocal.m4: Regenerate. * configure: Regenerate. * config.in: Regenerate. From-SVN: r133635 --- diff --git a/config/ChangeLog b/config/ChangeLog index f6dc2a4e242..9152d8acdab 100644 --- a/config/ChangeLog +++ b/config/ChangeLog @@ -1,3 +1,7 @@ +2008-03-27 Paolo Bonzini + + * extensions.m4: New. + 2008-03-27 Paolo Bonzini * mh-armpic: Remove. diff --git a/config/extensions.m4 b/config/extensions.m4 new file mode 100644 index 00000000000..8ae4a675e2b --- /dev/null +++ b/config/extensions.m4 @@ -0,0 +1,76 @@ +# serial 5 -*- Autoconf -*- +# Enable extensions on systems that normally disable them. + +# Copyright (C) 2003, 2006, 2007 Free Software Foundation, Inc. +# This file is free software; the Free Software Foundation +# gives unlimited permission to copy and/or distribute it, +# with or without modifications, as long as this notice is preserved. + +# This definition of AC_USE_SYSTEM_EXTENSIONS is stolen from CVS +# Autoconf. Perhaps we can remove this once we can assume Autoconf +# 2.62 or later everywhere, but since CVS Autoconf mutates rapidly +# enough in this area it's likely we'll need to redefine +# AC_USE_SYSTEM_EXTENSIONS for quite some time. + +# AC_USE_SYSTEM_EXTENSIONS +# ------------------------ +# Enable extensions on systems that normally disable them, +# typically due to standards-conformance issues. +# Remember that #undef in AH_VERBATIM gets replaced with #define by +# AC_DEFINE. The goal here is to define all known feature-enabling +# macros, then, if reports of conflicts are made, disable macros that +# cause problems on some platforms (such as __EXTENSIONS__). +AC_DEFUN([AC_USE_SYSTEM_EXTENSIONS], +[AC_BEFORE([$0], [AC_COMPILE_IFELSE])dnl +AC_BEFORE([$0], [AC_RUN_IFELSE])dnl + + AC_CHECK_HEADER([minix/config.h], [MINIX=yes], [MINIX=]) + if test "$MINIX" = yes; then + AC_DEFINE([_POSIX_SOURCE], [1], + [Define to 1 if you need to in order for `stat' and other + things to work.]) + AC_DEFINE([_POSIX_1_SOURCE], [2], + [Define to 2 if the system does not provide POSIX.1 features + except with this defined.]) + AC_DEFINE([_MINIX], [1], + [Define to 1 if on MINIX.]) + fi + + AH_VERBATIM([__EXTENSIONS__], +[/* Enable extensions on AIX 3, Interix. */ +#ifndef _ALL_SOURCE +# undef _ALL_SOURCE +#endif +/* Enable GNU extensions on systems that have them. */ +#ifndef _GNU_SOURCE +# undef _GNU_SOURCE +#endif +/* Enable threading extensions on Solaris. */ +#ifndef _POSIX_PTHREAD_SEMANTICS +# undef _POSIX_PTHREAD_SEMANTICS +#endif +/* Enable extensions on HP NonStop. */ +#ifndef _TANDEM_SOURCE +# undef _TANDEM_SOURCE +#endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ +#endif +]) + AC_CACHE_CHECK([whether it is safe to define __EXTENSIONS__], + [ac_cv_safe_to_define___extensions__], + [AC_COMPILE_IFELSE( + [AC_LANG_PROGRAM([ +# define __EXTENSIONS__ 1 + AC_INCLUDES_DEFAULT])], + [ac_cv_safe_to_define___extensions__=yes], + [ac_cv_safe_to_define___extensions__=no])]) + test $ac_cv_safe_to_define___extensions__ = yes && + AC_DEFINE([__EXTENSIONS__]) + AC_DEFINE([_ALL_SOURCE]) + AC_DEFINE([_GNU_SOURCE]) + AC_DEFINE([_POSIX_PTHREAD_SEMANTICS]) + AC_DEFINE([_TANDEM_SOURCE]) +])# AC_USE_SYSTEM_EXTENSIONS + diff --git a/gcc/ChangeLog b/gcc/ChangeLog index efe11979599..c9c46a5258a 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,11 @@ +2008-03-27 Paolo Bonzini + + * configure.ac: Replace custom __GNU_SOURCE test with + AC_USE_SYSTEM_EXTENSIONS. Move it earlier. + * aclocal.m4: Regenerate. + * configure: Regenerate. + * config.in: Regenerate. + 2008-03-27 Richard Guenther * fold-const.c (target.h): Include. diff --git a/gcc/aclocal.m4 b/gcc/aclocal.m4 index 48dc579ee88..dcece6fcfac 100644 --- a/gcc/aclocal.m4 +++ b/gcc/aclocal.m4 @@ -95,6 +95,7 @@ fi m4_include([../config/acx.m4]) m4_include([../config/codeset.m4]) m4_include([../config/depstand.m4]) +m4_include([../config/extensions.m4]) m4_include([../config/gettext-sister.m4]) m4_include([../config/iconv.m4]) m4_include([../config/lcmessage.m4]) diff --git a/gcc/config.in b/gcc/config.in index 37fbe453e5d..3c02951378a 100644 --- a/gcc/config.in +++ b/gcc/config.in @@ -1369,37 +1369,37 @@ #endif -/* The size of `int', as computed by sizeof. */ +/* The size of a `int', as computed by sizeof. */ #ifndef USED_FOR_TARGET #undef SIZEOF_INT #endif -/* The size of `long', as computed by sizeof. */ +/* The size of a `long', as computed by sizeof. */ #ifndef USED_FOR_TARGET #undef SIZEOF_LONG #endif -/* The size of `long long', as computed by sizeof. */ +/* The size of a `long long', as computed by sizeof. */ #ifndef USED_FOR_TARGET #undef SIZEOF_LONG_LONG #endif -/* The size of `short', as computed by sizeof. */ +/* The size of a `short', as computed by sizeof. */ #ifndef USED_FOR_TARGET #undef SIZEOF_SHORT #endif -/* The size of `void *', as computed by sizeof. */ +/* The size of a `void *', as computed by sizeof. */ #ifndef USED_FOR_TARGET #undef SIZEOF_VOID_P #endif -/* The size of `__int64', as computed by sizeof. */ +/* The size of a `__int64', as computed by sizeof. */ #ifndef USED_FOR_TARGET #undef SIZEOF___INT64 #endif @@ -1464,9 +1464,44 @@ #endif -/* Always define this when using the GNU C Library */ +/* Define to 1 if on MINIX. */ #ifndef USED_FOR_TARGET -#undef _GNU_SOURCE +#undef _MINIX +#endif + + +/* Define to 2 if the system does not provide POSIX.1 features except with + this defined. */ +#ifndef USED_FOR_TARGET +#undef _POSIX_1_SOURCE +#endif + + +/* Define to 1 if you need to in order for `stat' and other things to work. */ +#ifndef USED_FOR_TARGET +#undef _POSIX_SOURCE +#endif + + +/* Enable extensions on AIX 3, Interix. */ +#ifndef _ALL_SOURCE +# undef _ALL_SOURCE +#endif +/* Enable GNU extensions on systems that have them. */ +#ifndef _GNU_SOURCE +# undef _GNU_SOURCE +#endif +/* Enable threading extensions on Solaris. */ +#ifndef _POSIX_PTHREAD_SEMANTICS +# undef _POSIX_PTHREAD_SEMANTICS +#endif +/* Enable extensions on HP NonStop. */ +#ifndef _TANDEM_SOURCE +# undef _TANDEM_SOURCE +#endif +/* Enable general extensions on Solaris. */ +#ifndef __EXTENSIONS__ +# undef __EXTENSIONS__ #endif diff --git a/gcc/configure b/gcc/configure index 5bc3ae42e4d..f14366c98ad 100755 --- a/gcc/configure +++ b/gcc/configure @@ -2929,6 +2929,7 @@ esac # Check C compiler features # ------------------------- + ac_ext=c ac_cpp='$CPP $CPPFLAGS' ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' @@ -3164,25 +3165,44 @@ ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $ ac_compiler_gnu=$ac_cv_c_compiler_gnu -echo "$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 for egrep" >&5 +echo $ECHO_N "checking for egrep... $ECHO_C" >&6 +if test "${ac_cv_prog_egrep+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + if echo a | (grep -E '(a|b)') >/dev/null 2>&1 + then ac_cv_prog_egrep='grep -E' + else ac_cv_prog_egrep='egrep' + fi +fi +echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5 +echo "${ECHO_T}$ac_cv_prog_egrep" >&6 + EGREP=$ac_cv_prog_egrep + + +echo "$as_me:$LINENO: checking for ANSI C header files" >&5 +echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6 +if test "${ac_cv_header_stdc+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; } -#endif +#include +#include +#include +#include + +int +main () +{ + ; + return 0; +} _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 @@ -3206,56 +3226,366 @@ 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_header_stdc=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 +ac_cv_header_stdc=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext -done +if test $ac_cv_header_stdc = yes; then + # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "memchr" >/dev/null 2>&1; then + : +else + ac_cv_header_stdc=no fi -echo "$as_me:$LINENO: result: $ac_cv_c_inline" >&5 -echo "${ECHO_T}$ac_cv_c_inline" >&6 +rm -f conftest* +fi -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 +if test $ac_cv_header_stdc = yes; then + # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include + +_ACEOF +if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | + $EGREP "free" >/dev/null 2>&1; then + : +else + ac_cv_header_stdc=no +fi +rm -f conftest* + +fi + +if test $ac_cv_header_stdc = yes; then + # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. + if test "$cross_compiling" = yes; then + : +else + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include +#if ((' ' & 0x0FF) == 0x020) +# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') +# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) +#else +# define ISLOWER(c) \ + (('a' <= (c) && (c) <= 'i') \ + || ('j' <= (c) && (c) <= 'r') \ + || ('s' <= (c) && (c) <= 'z')) +# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) #endif + +#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) +int +main () +{ + int i; + for (i = 0; i < 256; i++) + if (XOR (islower (i), ISLOWER (i)) + || toupper (i) != TOUPPER (i)) + exit(2); + exit (0); +} _ACEOF - ;; -esac +rm -f conftest$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 $ac_status); }; }; then + : +else + echo "$as_me: program exited with status $ac_status" >&5 +echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 +( exit $ac_status ) +ac_cv_header_stdc=no +fi +rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext +fi +fi +fi +echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5 +echo "${ECHO_T}$ac_cv_header_stdc" >&6 +if test $ac_cv_header_stdc = yes; then -# sizeof(char) is 1 by definition. +cat >>confdefs.h <<\_ACEOF +#define STDC_HEADERS 1 +_ACEOF -echo "$as_me:$LINENO: checking for egrep" >&5 -echo $ECHO_N "checking for egrep... $ECHO_C" >&6 -if test "${ac_cv_prog_egrep+set}" = set; then +fi + +# On IRIX 5.3, sys/types and inttypes.h are conflicting. + + + + + + + + + +for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ + inttypes.h stdint.h unistd.h +do +as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` +echo "$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) $ECHO_C" >&6 else - if echo a | (grep -E '(a|b)') >/dev/null 2>&1 - then ac_cv_prog_egrep='grep -E' - else ac_cv_prog_egrep='egrep' - fi + cat >conftest.$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 + 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 $ac_status); }; }; then + eval "$as_ac_Header=yes" +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + +eval "$as_ac_Header=no" fi -echo "$as_me:$LINENO: result: $ac_cv_prog_egrep" >&5 -echo "${ECHO_T}$ac_cv_prog_egrep" >&6 - EGREP=$ac_cv_prog_egrep +rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 +echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 +if test `eval echo '${'$as_ac_Header'}'` = yes; then + cat >>confdefs.h <<_ACEOF +#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 +_ACEOF +fi -echo "$as_me:$LINENO: checking for ANSI C header files" >&5 -echo $ECHO_N "checking for ANSI C header files... $ECHO_C" >&6 -if test "${ac_cv_header_stdc+set}" = set; then +done + + + + if test "${ac_cv_header_minix_config_h+set}" = set; then + echo "$as_me:$LINENO: checking for minix/config.h" >&5 +echo $ECHO_N "checking for minix/config.h... $ECHO_C" >&6 +if test "${ac_cv_header_minix_config_h+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +fi +echo "$as_me:$LINENO: result: $ac_cv_header_minix_config_h" >&5 +echo "${ECHO_T}$ac_cv_header_minix_config_h" >&6 +else + # Is the header compilable? +echo "$as_me:$LINENO: checking minix/config.h usability" >&5 +echo $ECHO_N "checking minix/config.h 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. */ +$ac_includes_default +#include +_ACEOF +rm -f conftest.$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 $ac_status); }; }; then + ac_header_compiler=yes +else + echo "$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}$ac_header_compiler" >&6 + +# Is the header present? +echo "$as_me:$LINENO: checking minix/config.h presence" >&5 +echo $ECHO_N "checking minix/config.h 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 +_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:$LINENO: WARNING: minix/config.h: accepted by the compiler, rejected by the preprocessor!" >&5 +echo "$as_me: WARNING: minix/config.h: accepted by the compiler, rejected by the preprocessor!" >&2;} + { echo "$as_me:$LINENO: WARNING: minix/config.h: proceeding with the compiler's result" >&5 +echo "$as_me: WARNING: minix/config.h: proceeding with the compiler's result" >&2;} + ac_header_preproc=yes + ;; + no:yes:* ) + { echo "$as_me:$LINENO: WARNING: minix/config.h: present but cannot be compiled" >&5 +echo "$as_me: WARNING: minix/config.h: present but cannot be compiled" >&2;} + { echo "$as_me:$LINENO: WARNING: minix/config.h: check for missing prerequisite headers?" >&5 +echo "$as_me: WARNING: minix/config.h: check for missing prerequisite headers?" >&2;} + { echo "$as_me:$LINENO: WARNING: minix/config.h: see the Autoconf documentation" >&5 +echo "$as_me: WARNING: minix/config.h: see the Autoconf documentation" >&2;} + { echo "$as_me:$LINENO: WARNING: minix/config.h: section \"Present But Cannot Be Compiled\"" >&5 +echo "$as_me: WARNING: minix/config.h: section \"Present But Cannot Be Compiled\"" >&2;} + { echo "$as_me:$LINENO: WARNING: minix/config.h: proceeding with the preprocessor's result" >&5 +echo "$as_me: WARNING: minix/config.h: proceeding with the preprocessor's result" >&2;} + { echo "$as_me:$LINENO: WARNING: minix/config.h: in the future, the compiler will take precedence" >&5 +echo "$as_me: WARNING: minix/config.h: in the future, the compiler will take precedence" >&2;} + ( + cat <<\_ASBOX +## ------------------------------------------ ## +## Report this to the AC_PACKAGE_NAME lists. ## +## ------------------------------------------ ## +_ASBOX + ) | + sed "s/^/$as_me: WARNING: /" >&2 + ;; +esac +echo "$as_me:$LINENO: checking for minix/config.h" >&5 +echo $ECHO_N "checking for minix/config.h... $ECHO_C" >&6 +if test "${ac_cv_header_minix_config_h+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + ac_cv_header_minix_config_h=$ac_header_preproc +fi +echo "$as_me:$LINENO: result: $ac_cv_header_minix_config_h" >&5 +echo "${ECHO_T}$ac_cv_header_minix_config_h" >&6 + +fi +if test $ac_cv_header_minix_config_h = yes; then + MINIX=yes +else + MINIX= +fi + + + if test "$MINIX" = yes; then + +cat >>confdefs.h <<\_ACEOF +#define _POSIX_SOURCE 1 +_ACEOF + + +cat >>confdefs.h <<\_ACEOF +#define _POSIX_1_SOURCE 2 +_ACEOF + + +cat >>confdefs.h <<\_ACEOF +#define _MINIX 1 +_ACEOF + + fi + + + + echo "$as_me:$LINENO: checking whether it is safe to define __EXTENSIONS__" >&5 +echo $ECHO_N "checking whether it is safe to define __EXTENSIONS__... $ECHO_C" >&6 +if test "${ac_cv_safe_to_define___extensions__+set}" = set; then echo $ECHO_N "(cached) $ECHO_C" >&6 else cat >conftest.$ac_ext <<_ACEOF @@ -3264,11 +3594,9 @@ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ -#include -#include -#include -#include +# define __EXTENSIONS__ 1 + $ac_includes_default int main () { @@ -3299,154 +3627,292 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then - ac_cv_header_stdc=yes + ac_cv_safe_to_define___extensions__=yes else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 -ac_cv_header_stdc=no +ac_cv_safe_to_define___extensions__=no fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext +fi +echo "$as_me:$LINENO: result: $ac_cv_safe_to_define___extensions__" >&5 +echo "${ECHO_T}$ac_cv_safe_to_define___extensions__" >&6 + test $ac_cv_safe_to_define___extensions__ = yes && + cat >>confdefs.h <<\_ACEOF +#define __EXTENSIONS__ 1 +_ACEOF -if test $ac_cv_header_stdc = yes; then - # SunOS 4.x string.h does not declare mem*, contrary to ANSI. + cat >>confdefs.h <<\_ACEOF +#define _ALL_SOURCE 1 +_ACEOF + + cat >>confdefs.h <<\_ACEOF +#define _GNU_SOURCE 1 +_ACEOF + + cat >>confdefs.h <<\_ACEOF +#define _POSIX_PTHREAD_SEMANTICS 1 +_ACEOF + + cat >>confdefs.h <<\_ACEOF +#define _TANDEM_SOURCE 1 +_ACEOF + + +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu +echo "$as_me:$LINENO: checking how to run the C preprocessor" >&5 +echo $ECHO_N "checking how to run the C preprocessor... $ECHO_C" >&6 +# On Suns, sometimes $CPP names a directory. +if test -n "$CPP" && test -d "$CPP"; then + CPP= +fi +if test -z "$CPP"; then + if test "${ac_cv_prog_CPP+set}" = set; then + echo $ECHO_N "(cached) $ECHO_C" >&6 +else + # Double quotes because CPP needs to be expanded + for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp" + do + ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ -#include - +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error _ACEOF -if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - $EGREP "memchr" >/dev/null 2>&1; then +if { (eval echo "$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 "$ac_cpp_err"; then : else - ac_cv_header_stdc=no + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + + # Broken: fails on valid input. +continue fi -rm -f conftest* +rm -f conftest.err conftest.$ac_ext + + # OK, works on sane cases. Now check whether non-existent headers + # can be detected and how. + cat >conftest.$ac_ext <<_ACEOF +/* confdefs.h. */ +_ACEOF +cat confdefs.h >>conftest.$ac_ext +cat >>conftest.$ac_ext <<_ACEOF +/* end confdefs.h. */ +#include +_ACEOF +if { (eval echo "$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 "$ac_cpp_err"; then + # Broken: success on invalid input. +continue +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + # Passes both tests. +ac_preproc_ok=: +break fi +rm -f conftest.err conftest.$ac_ext -if test $ac_cv_header_stdc = yes; then - # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI. +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.err conftest.$ac_ext +if $ac_preproc_ok; then + break +fi + + done + ac_cv_prog_CPP=$CPP + +fi + CPP=$ac_cv_prog_CPP +else + ac_cv_prog_CPP=$CPP +fi +echo "$as_me:$LINENO: result: $CPP" >&5 +echo "${ECHO_T}$CPP" >&6 +ac_preproc_ok=false +for ac_c_preproc_warn_flag in '' yes +do + # Use a header file that comes with gcc, so configuring glibc + # with a fresh cross-compiler works. + # Prefer to if __STDC__ is defined, since + # exists even on freestanding compilers. + # On the NeXT, cc -E runs the code through the compiler's parser, + # not just through cpp. "Syntax error" is here to catch this case. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ -#include - +#ifdef __STDC__ +# include +#else +# include +#endif + Syntax error _ACEOF -if (eval "$ac_cpp conftest.$ac_ext") 2>&5 | - $EGREP "free" >/dev/null 2>&1; then - : +if { (eval echo "$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_cv_header_stdc=no + ac_cpp_err=yes fi -rm -f conftest* +if test -z "$ac_cpp_err"; then + : +else + echo "$as_me: failed program was:" >&5 +sed 's/^/| /' conftest.$ac_ext >&5 + # Broken: fails on valid input. +continue fi +rm -f conftest.err conftest.$ac_ext -if test $ac_cv_header_stdc = yes; then - # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi. - if test "$cross_compiling" = yes; then - : -else + # OK, works on sane cases. Now check whether non-existent headers + # can be detected and how. cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ -#include -#if ((' ' & 0x0FF) == 0x020) -# define ISLOWER(c) ('a' <= (c) && (c) <= 'z') -# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c)) -#else -# define ISLOWER(c) \ - (('a' <= (c) && (c) <= 'i') \ - || ('j' <= (c) && (c) <= 'r') \ - || ('s' <= (c) && (c) <= 'z')) -# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c)) -#endif - -#define XOR(e, f) (((e) && !(f)) || (!(e) && (f))) -int -main () -{ - int i; - for (i = 0; i < 256; i++) - if (XOR (islower (i), ISLOWER (i)) - || toupper (i) != TOUPPER (i)) - exit(2); - exit (0); -} +#include _ACEOF -rm -f conftest$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 $ac_try) 2>&5 +if { (eval echo "$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); }; }; then - : + (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 - echo "$as_me: program exited with status $ac_status" >&5 -echo "$as_me: failed program was:" >&5 + ac_cpp_err=yes +fi +if test -z "$ac_cpp_err"; then + # Broken: success on invalid input. +continue +else + echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 -( exit $ac_status ) -ac_cv_header_stdc=no -fi -rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext -fi -fi + # Passes both tests. +ac_preproc_ok=: +break fi -echo "$as_me:$LINENO: result: $ac_cv_header_stdc" >&5 -echo "${ECHO_T}$ac_cv_header_stdc" >&6 -if test $ac_cv_header_stdc = yes; then - -cat >>confdefs.h <<\_ACEOF -#define STDC_HEADERS 1 -_ACEOF +rm -f conftest.err conftest.$ac_ext +done +# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped. +rm -f conftest.err conftest.$ac_ext +if $ac_preproc_ok; then + : +else + { { echo "$as_me:$LINENO: error: C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details." >&5 +echo "$as_me: error: C preprocessor \"$CPP\" fails sanity check +See \`config.log' for more details." >&2;} + { (exit 1); exit 1; }; } fi -# On IRIX 5.3, sys/types and inttypes.h are conflicting. - - - - - - - - +ac_ext=c +ac_cpp='$CPP $CPPFLAGS' +ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5' +ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5' +ac_compiler_gnu=$ac_cv_c_compiler_gnu -for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \ - inttypes.h stdint.h unistd.h -do -as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh` -echo "$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) $ECHO_C" >&6 else + ac_cv_c_inline=no +for ac_kw in inline __inline__ __inline; do cat >conftest.$ac_ext <<_ACEOF /* confdefs.h. */ _ACEOF cat confdefs.h >>conftest.$ac_ext cat >>conftest.$ac_ext <<_ACEOF /* end confdefs.h. */ -$ac_includes_default +#ifndef __cplusplus +typedef int foo_t; +static $ac_kw foo_t static_foo () {return 0; } +$ac_kw foo_t foo () {return 0; } +#endif -#include <$ac_header> _ACEOF rm -f conftest.$ac_objext if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 @@ -3470,27 +3936,37 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5 ac_status=$? echo "$as_me:$LINENO: \$? = $ac_status" >&5 (exit $ac_status); }; }; then - eval "$as_ac_Header=yes" + ac_cv_c_inline=$ac_kw; break else echo "$as_me: failed program was:" >&5 sed 's/^/| /' conftest.$ac_ext >&5 -eval "$as_ac_Header=no" fi rm -f conftest.err conftest.$ac_objext conftest.$ac_ext -fi -echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_Header'}'`" >&5 -echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6 -if test `eval echo '${'$as_ac_Header'}'` = yes; then - cat >>confdefs.h <<_ACEOF -#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1 -_ACEOF +done fi +echo "$as_me:$LINENO: result: $ac_cv_c_inline" >&5 +echo "${ECHO_T}$ac_cv_c_inline" >&6 -done + +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 $ac_val +#endif +_ACEOF + ;; +esac +# sizeof(char) is 1 by definition. echo "$as_me:$LINENO: checking for void *" >&5 echo $ECHO_N "checking for void *... $ECHO_C" >&6 if test "${ac_cv_type_void_p+set}" = set; then @@ -7934,71 +8410,6 @@ fi # Checks for C headers # -------------------- -echo "$as_me:$LINENO: checking for GNU C library" >&5 -echo $ECHO_N "checking for GNU C library... $ECHO_C" >&6 -if test "${gcc_cv_glibc+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. */ -#include -int -main () -{ - -#if ! (defined __GLIBC__ || defined __GNU_LIBRARY__) -#error Not a GNU C library system -#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 $ac_status); }; }; then - gcc_cv_glibc=yes -else - echo "$as_me: failed program was:" >&5 -sed 's/^/| /' conftest.$ac_ext >&5 - -gcc_cv_glibc=no -fi -rm -f conftest.err conftest.$ac_objext conftest.$ac_ext -fi - -echo "$as_me:$LINENO: result: $gcc_cv_glibc" >&5 -echo "${ECHO_T}$gcc_cv_glibc" >&6 -if test $gcc_cv_glibc = yes; then - -cat >>confdefs.h <<\_ACEOF -#define _GNU_SOURCE 1 -_ACEOF - -fi - # Need to reject headers which give warnings, so that the -Werror bootstrap # works later. *sigh* This needs to come before all header checks. diff --git a/gcc/configure.ac b/gcc/configure.ac index a0351bd40a6..10e6a9eca58 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -297,6 +297,7 @@ AC_SUBST(CFLAGS) # Check C compiler features # ------------------------- +AC_USE_SYSTEM_EXTENSIONS AC_PROG_CPP AC_C_INLINE @@ -896,20 +897,6 @@ fi # Checks for C headers # -------------------- -AC_MSG_CHECKING(for GNU C library) -AC_CACHE_VAL(gcc_cv_glibc, -[AC_COMPILE_IFELSE([AC_LANG_PROGRAM( - [[#include ]], [[ -#if ! (defined __GLIBC__ || defined __GNU_LIBRARY__) -#error Not a GNU C library system -#endif]])], - [gcc_cv_glibc=yes], - [gcc_cv_glibc=no])]) -AC_MSG_RESULT($gcc_cv_glibc) -if test $gcc_cv_glibc = yes; then - AC_DEFINE(_GNU_SOURCE, 1, [Always define this when using the GNU C Library]) -fi - # Need to reject headers which give warnings, so that the -Werror bootstrap # works later. *sigh* This needs to come before all header checks. AC_PROG_CPP_WERROR