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libbacktrace: test linker support for DWARF 5

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On AIX, the compiler supports DWARF 5 but the linker does not.

2020-07-07 Clement Chigot <clement.chigot@atos.net>

	* configure.ac: Test linker support for DWARF5
	* configure: Regenerate
This commit is contained in:
Ian Lance Taylor
2020-07-07 20:42:21 -07:00
parent 9b7f216e86
commit aaa51b6dbe
2 changed files with 12 additions and 4 deletions
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12
configure vendored
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@@ -12678,13 +12678,21 @@ CFLAGS="$CFLAGS -gdwarf-5"
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int i;
int
main ()
{
return 0;
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
if ac_fn_c_try_link "$LINENO"; then :
libbacktrace_cv_lib_dwarf5=yes
else
libbacktrace_cv_lib_dwarf5=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
rm -f core conftest.err conftest.$ac_objext \
conftest$ac_exeext conftest.$ac_ext
CFLAGS=$CFLAGS_hold
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libbacktrace_cv_lib_dwarf5" >&5