From 43d89a23d59c487bc9258fad7a6187864cb8c0c0 Mon Sep 17 00:00:00 2001
From: Noah Misch <noah@leadboat.com>
Date: Fri, 17 Jul 2015 03:01:14 -0400
Subject: [PATCH] AIX: Test the -qlonglong option before use.
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 85a2a8903f7e9151793308d0638621003aded5ae, it interfered with the
test for -qnoansialias. Back-patch to 9.0 (all supported versions).
---
configure | 35 +++++++++++++++++++++++++++++++++++
configure.in | 1 +
src/template/aix | 2 +-
3 files changed, 37 insertions(+), 1 deletion(-)
diff --git a/configure b/configure
index 77048e8593b..2176d6583cf 100755
--- a/configure
+++ b/configure
@@ -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.
diff --git a/configure.in b/configure.in
index 5724a4df075..ece5e227511 100644
--- a/configure.in
+++ b/configure.in
@@ -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 "$PORTNAME" = "hpux"; then
# On some versions of HP-UX, libm functions do not set errno by default.
# Fix that by using +Olibmerrno if the compiler recognizes it.
diff --git a/src/template/aix b/src/template/aix
index 04c97e7bd14..b566ff129df 100644
--- a/src/template/aix
+++ b/src/template/aix
@@ -7,7 +7,7 @@ if test "$GCC" != yes ; then
CFLAGS="-O -qmaxmem=16384 -qsrcmsg"
;;
*)
- CFLAGS="-O2 -qmaxmem=16384 -qsrcmsg -qlonglong"
+ CFLAGS="-O2 -qmaxmem=16384 -qsrcmsg"
;;
esac
fi
--
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