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configure: use do_cc when checking for -fstack-protector support

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MacOSX clang silently swallows unrecognized -f options when doing a link
with '-framework' also on the command line, so to detect support for
the various -fstack-protector options we must do a plain .c to .o compile,
not a complete compile-and-link.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Message-id: 1397041487-28477-1-git-send-email-peter.maydell@linaro.org
This commit is contained in:
Peter Maydell 2014-04-09 12:04:47 +01:00
parent efcc87d9ae
commit 0a9077ea14
1 changed files with 1 additions and 1 deletions
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2
configure vendored
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@ -1448,7 +1448,7 @@ done
if test "$stack_protector" != "no" ; then if test "$stack_protector" != "no" ; then
gcc_flags="-fstack-protector-strong -fstack-protector-all" gcc_flags="-fstack-protector-strong -fstack-protector-all"
for flag in $gcc_flags; do for flag in $gcc_flags; do
if compile_prog "-Werror $flag" "" ; then if do_cc $QEMU_CFLAGS -Werror $flag -c -o $TMPO $TMPC ; then
QEMU_CFLAGS="$QEMU_CFLAGS $flag" QEMU_CFLAGS="$QEMU_CFLAGS $flag"
LIBTOOLFLAGS="$LIBTOOLFLAGS -Wc,$flag" LIBTOOLFLAGS="$LIBTOOLFLAGS -Wc,$flag"
break break