fi
-# The following save_state_t checkery is only necessary for HPUX
-# versions earlier than 10.20. When those fade from memory, this
-# could be expunged. --jsm 1999-03-22
-
-echo "$as_me:$LINENO: checking for HPUX save_state structure" >&5
-echo $ECHO_N "checking for HPUX save_state structure... $ECHO_C" >&6
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <machine/save_state.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "save_state_t" >/dev/null 2>&1; then
- gdb_cv_hpux_savestate=yes
-else
- gdb_cv_hpux_savestate=no
-fi
-rm -f conftest*
-
-cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h. */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h. */
-#include <machine/save_state.h>
-
-_ACEOF
-if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
- $EGREP "ss_wide" >/dev/null 2>&1; then
- gdb_cv_hpux_sswide=yes
-else
- gdb_cv_hpux_sswide=no
-fi
-rm -f conftest*
-
-if test $gdb_cv_hpux_savestate = yes
-then
- cat >>confdefs.h <<\_ACEOF
-#define HAVE_STRUCT_SAVE_STATE_T 1
-_ACEOF
-
-fi
-if test $gdb_cv_hpux_sswide = yes
-then
- cat >>confdefs.h <<\_ACEOF
-#define HAVE_STRUCT_MEMBER_SS_WIDE 1
-_ACEOF
-
-fi
-echo "$as_me:$LINENO: result: $gdb_cv_hpux_sswide" >&5
-echo "${ECHO_T}$gdb_cv_hpux_sswide" >&6
-
-
# If we are configured native on GNU/Linux, work around problems with
# sys/procfs.h
# Also detect which type of /proc is in use, such as for Unixware or Solaris.
fi
fi
+# Check if the compiler supports the `long long' type.
echo "$as_me:$LINENO: checking for long long support in compiler" >&5
echo $ECHO_N "checking for long long support in compiler... $ECHO_C" >&6
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
+extern long long foo;
int
main ()
{
-
- extern long long foo;
- switch (foo & 2) { case 0: return 1; }
-
+switch (foo & 2) { case 0: return 1; }
;
return 0;
}
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
-
echo "$as_me:$LINENO: result: $gdb_cv_c_long_long" >&5
echo "${ECHO_T}$gdb_cv_c_long_long" >&6
if test $gdb_cv_c_long_long = yes; then
- cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
#define CC_HAS_LONG_LONG 1
_ACEOF
fi
+# Check if the compiler and runtime support printing long longs.
echo "$as_me:$LINENO: checking for long long support in printf" >&5
echo $ECHO_N "checking for long long support in printf... $ECHO_C" >&6
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
-int main () {
- char buf[32];
+$ac_includes_default
+int
+main ()
+{
+char buf[32];
long long l = 0;
l = (l << 16) + 0x0123;
l = (l << 16) + 0x4567;
l = (l << 16) + 0xcdef;
sprintf (buf, "0x%016llx", l);
return (strcmp ("0x0123456789abcdef", buf));
+ ;
+ return 0;
}
_ACEOF
rm -f conftest$ac_exeext
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
-
+echo "$as_me:$LINENO: result: $gdb_cv_printf_has_long_long" >&5
+echo "${ECHO_T}$gdb_cv_printf_has_long_long" >&6
if test $gdb_cv_printf_has_long_long = yes; then
- cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
#define PRINTF_HAS_LONG_LONG 1
_ACEOF
fi
-echo "$as_me:$LINENO: result: $gdb_cv_printf_has_long_long" >&5
-echo "${ECHO_T}$gdb_cv_printf_has_long_long" >&6
+# Check if the compiler supports the `long double' type. We can't use
+# AC_C_LONG_DOUBLE because that one does additional checks on the
+# constants defined in <float.h> that fail on some systems,
+# e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
echo "$as_me:$LINENO: checking for long double support in compiler" >&5
echo $ECHO_N "checking for long double support in compiler... $ECHO_C" >&6
-if test "${ac_cv_c_long_double+set}" = set; then
+if test "${gdb_cv_c_long_double+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. */
-
-int
-main ()
-{
long double foo;
- ;
- 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 $ac_status); }; }; then
- ac_cv_c_long_double=yes
+ gdb_cv_c_long_double=yes
else
echo "$as_me: failed program was:" >&5
sed 's/^/| /' conftest.$ac_ext >&5
-ac_cv_c_long_double=no
+gdb_cv_c_long_double=no
fi
rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
fi
+echo "$as_me:$LINENO: result: $gdb_cv_c_long_double" >&5
+echo "${ECHO_T}$gdb_cv_c_long_double" >&6
+if test $gdb_cv_c_long_double = yes; then
-echo "$as_me:$LINENO: result: $ac_cv_c_long_double" >&5
-echo "${ECHO_T}$ac_cv_c_long_double" >&6
-if test $ac_cv_c_long_double = yes; then
- cat >>confdefs.h <<\_ACEOF
+cat >>confdefs.h <<\_ACEOF
#define HAVE_LONG_DOUBLE 1
_ACEOF
fi
+# Check if the compiler and runtime support printing long doubles.
echo "$as_me:$LINENO: checking for long double support in printf" >&5
echo $ECHO_N "checking for long double support in printf... $ECHO_C" >&6
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
-int main () {
- char buf[16];
+$ac_includes_default
+int
+main ()
+{
+char buf[16];
long double f = 3.141592653;
sprintf (buf, "%Lg", f);
return (strncmp ("3.14159", buf, 7));
+ ;
+ return 0;
}
_ACEOF
rm -f conftest$ac_exeext
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
-
+echo "$as_me:$LINENO: result: $gdb_cv_printf_has_long_double" >&5
+echo "${ECHO_T}$gdb_cv_printf_has_long_double" >&6
if test $gdb_cv_printf_has_long_double = yes; then
- cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
#define PRINTF_HAS_LONG_DOUBLE 1
_ACEOF
fi
-echo "$as_me:$LINENO: result: $gdb_cv_printf_has_long_double" >&5
-echo "${ECHO_T}$gdb_cv_printf_has_long_double" >&6
+# Check if the compiler and runtime support scanning long doubles.
echo "$as_me:$LINENO: checking for long double support in scanf" >&5
echo $ECHO_N "checking for long double support in scanf... $ECHO_C" >&6
cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */
-
-int main () {
- char *buf = "3.141592653";
+#include <stdio.h>
+int
+main ()
+{
+char *buf = "3.141592653";
long double f = 0;
sscanf (buf, "%Lg", &f);
return !(f > 3.14159 && f < 3.14160);
+ ;
+ return 0;
}
_ACEOF
rm -f conftest$ac_exeext
rm -f core *.core gmon.out bb.out conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
fi
fi
-
+echo "$as_me:$LINENO: result: $gdb_cv_scanf_has_long_double" >&5
+echo "${ECHO_T}$gdb_cv_scanf_has_long_double" >&6
if test $gdb_cv_scanf_has_long_double = yes; then
- cat >>confdefs.h <<\_ACEOF
+
+cat >>confdefs.h <<\_ACEOF
#define SCANF_HAS_LONG_DOUBLE 1
_ACEOF
fi
-echo "$as_me:$LINENO: result: $gdb_cv_scanf_has_long_double" >&5
-echo "${ECHO_T}$gdb_cv_scanf_has_long_double" >&6
case ${host_os} in
aix*)
projects / deliverable / binutils-gdb.git / blobdiff