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AIX: Test the -qlonglong option before use.

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xlc provides "long long" unconditionally at C99-compatible language
levels, and this option provokes a warning.  The warning interferes with
"configure" tests that fail in response to any warning.  Notably, before
commit 85a2a8903f, it interfered with the
test for -qnoansialias.  Back-patch to 9.0 (all supported versions).
This commit is contained in:
Noah Misch 2015-07-17 03:01:14 -04:00
parent 9d6077abf9
commit 43d89a23d5
3 changed files with 37 additions and 1 deletions
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35
configure vendored
View File

@ -4877,6 +4877,41 @@ if test x"$pgac_cv_prog_cc_cflags__qnoansialias" = x"yes"; then
CFLAGS="$CFLAGS -qnoansialias"
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC supports -qlonglong" >&5
$as_echo_n "checking whether $CC supports -qlonglong... " >&6; }
if ${pgac_cv_prog_cc_cflags__qlonglong+:} false; then :
$as_echo_n "(cached) " >&6
else
pgac_save_CFLAGS=$CFLAGS
CFLAGS="$pgac_save_CFLAGS -qlonglong"
ac_save_c_werror_flag=$ac_c_werror_flag
ac_c_werror_flag=yes
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
/* end confdefs.h. */
int
main ()
{
;
return 0;
}
_ACEOF
if ac_fn_c_try_compile "$LINENO"; then :
pgac_cv_prog_cc_cflags__qlonglong=yes
else
pgac_cv_prog_cc_cflags__qlonglong=no
fi
rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
ac_c_werror_flag=$ac_save_c_werror_flag
CFLAGS="$pgac_save_CFLAGS"
fi
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv_prog_cc_cflags__qlonglong" >&5
$as_echo "$pgac_cv_prog_cc_cflags__qlonglong" >&6; }
if test x"$pgac_cv_prog_cc_cflags__qlonglong" = x"yes"; then
CFLAGS="$CFLAGS -qlonglong"
fi
elif test "$PORTNAME" = "hpux"; then
# On some versions of HP-UX, libm functions do not set errno by default.
# Fix that by using +Olibmerrno if the compiler recognizes it.

1
configure.in
View File

@ -461,6 +461,7 @@ elif test "$ICC" = yes; then
elif test "$PORTNAME" = "aix"; then
# AIX's xlc has to have strict aliasing turned off too
PGAC_PROG_CC_CFLAGS_OPT([-qnoansialias])
PGAC_PROG_CC_CFLAGS_OPT([-qlonglong])
elif test "$PORTNAME" = "hpux"; then
# On some versions of HP-UX, libm functions do not set errno by default.
# Fix that by using +Olibmerrno if the compiler recognizes it.

2
src/template/aix
View File

@ -7,7 +7,7 @@ if test "$GCC" != yes ; then
CFLAGS="-O -qmaxmem=16384 -qsrcmsg"
;;
*)
CFLAGS="-O2 -qmaxmem=16384 -qsrcmsg -qlonglong"
CFLAGS="-O2 -qmaxmem=16384 -qsrcmsg"
;;
esac
fi