+# 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 $ac_n "checking whether $ac_func is declared""... $ac_c" 1>&6
+echo "configure:7169: checking whether $ac_func is declared" >&5
+if eval "test \"`echo '$''{'gcc_cv_have_decl_$ac_func'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 7174 "configure"
+#include "confdefs.h"
+#undef $ac_tr_decl
+#define $ac_tr_decl 1
+ $gdb_ptrace_headers
+
+int main() {
+#ifndef $ac_func
+char *(*pfn) = (char *(*)) $ac_func ;
+#endif
+; return 0; }
+EOF
+if { (eval echo configure:7186: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+ rm -rf conftest*
+ eval "gcc_cv_have_decl_$ac_func=yes"
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ eval "gcc_cv_have_decl_$ac_func=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$gcc_cv_have_decl_'$ac_func`\" = yes"; then
+ echo "$ac_t""yes" 1>&6 ; cat >> confdefs.h <<EOF
+#define $ac_tr_decl 1
+EOF
+
+else
+ echo "$ac_t""no" 1>&6 ; cat >> confdefs.h <<EOF
+#define $ac_tr_decl 0
+EOF
+
+ : ${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 <<\EOF
+#define HAVE_DECL_PTRACE 1
+EOF
+fi
+
+# Check return type.
+echo $ac_n "checking return type of ptrace""... $ac_c" 1>&6
+echo "configure:7222: checking return type of ptrace" >&5
+if eval "test \"`echo '$''{'gdb_cv_func_ptrace_ret'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+ cat > conftest.$ac_ext <<EOF
+#line 7227 "configure"
+#include "confdefs.h"
+$gdb_ptrace_headers
+int main() {
+extern int ptrace ();
+; return 0; }
+EOF
+if { (eval echo configure:7234: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+ rm -rf conftest*
+ gdb_cv_func_ptrace_ret='int'
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ rm -rf conftest*
+ gdb_cv_func_ptrace_ret='long'
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$gdb_cv_func_ptrace_ret" 1>&6
+cat >> confdefs.h <<EOF
+#define PTRACE_TYPE_RET $gdb_cv_func_ptrace_ret
+EOF
+
+# Check argument types.
+echo $ac_n "checking types of arguments for ptrace""... $ac_c" 1>&6
+echo "configure:7253: checking types of arguments for ptrace" >&5
+if eval "test \"`echo '$''{'gdb_cv_func_ptrace_args'+set}'`\" = set"; then
+ echo $ac_n "(cached) $ac_c" 1>&6
+else
+
+for gdb_arg1 in 'int' 'long'; do
+ for gdb_arg2 in 'pid_t' 'int' 'long'; do
+ for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long'; do
+ for gdb_arg4 in 'int' 'long'; do
+ cat > conftest.$ac_ext <<EOF
+#line 7263 "configure"
+#include "confdefs.h"
+$gdb_ptrace_headers
+int main() {
+
+extern $gdb_cv_func_ptrace_ret
+ ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
+
+; return 0; }
+EOF
+if { (eval echo configure:7273: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+ rm -rf conftest*
+ gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
+ break 4;
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+fi
+rm -f conftest*
+ for gdb_arg5 in 'int *' 'int' 'long'; do
+ cat > conftest.$ac_ext <<EOF
+#line 7284 "configure"
+#include "confdefs.h"
+$gdb_ptrace_headers
+int main() {
+
+extern $gdb_cv_func_ptrace_ret
+ ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
+
+; return 0; }
+EOF
+if { (eval echo configure:7294: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+ rm -rf conftest*
+
+gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
+ break 5;
+else
+ echo "configure: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+fi
+rm -f conftest*
+ done
+ done
+ done
+ done
+done
+# Provide a safe default value.
+: ${gdb_cv_func_ptrace_args='int,int,long,long'}
+
+fi
+
+echo "$ac_t""$gdb_cv_func_ptrace_args" 1>&6
+ac_save_IFS=$IFS; IFS=','
+set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
+IFS=$ac_save_IFS
+shift
+cat >> confdefs.h <<EOF
+#define PTRACE_TYPE_ARG3 $3
+EOF
+
+if test -n "$5"; then
+ cat >> confdefs.h <<EOF
+#define PTRACE_TYPE_ARG5 $5
+EOF
+
+fi
+