[FFmpeg-cvslog] configure: add support to nicely enable ftrapv
Michael Niedermayer
git at videolan.org
Tue Oct 9 06:19:18 CEST 2012
ffmpeg | branch: master | Michael Niedermayer <michaelni at gmx.at> | Tue Oct 9 05:43:30 2012 +0200| [e73bac484f71bbfe9444fbea2e31f00f72596861] | committer: Michael Niedermayer
configure: add support to nicely enable ftrapv
Signed-off-by: Michael Niedermayer <michaelni at gmx.at>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=e73bac484f71bbfe9444fbea2e31f00f72596861
---
configure | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/configure b/configure
index 85fab2d..2409599 100755
--- a/configure
+++ b/configure
@@ -315,6 +315,7 @@ Developer options (useful when working on FFmpeg itself):
--valgrind=VALGRIND run "make fate" tests through valgrind to detect memory
leaks and errors, using the specified valgrind binary.
Cannot be combined with --target-exec
+ --enable-ftrapv Trap arithmetic overflows
--samples=PATH location of test samples for FATE, if not set use
\$FATE_SAMPLES at make invocation time.
--enable-xmm-clobber-test check XMM registers for clobbering (Win64-only;
@@ -1108,6 +1109,7 @@ CONFIG_LIST="
fft
fontconfig
frei0r
+ ftrapv
gnutls
gpl
gray
@@ -3871,6 +3873,8 @@ check_optflags $optflags
check_optflags -fno-math-errno
check_optflags -fno-signed-zeros
+enabled ftrapv && check_cflags -ftrapv
+
check_cc -mno-red-zone <<EOF && noredzone_flags="-mno-red-zone"
int x;
EOF
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