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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 b8f3682769
commit f3f037e187
3 changed files with 37 additions and 1 deletions
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1
configure.in
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@ -456,6 +456,7 @@ 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.