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| author | Bernd Kuhls <bernd.kuhls@t-online.de> | 2018-07-29 00:16:25 +0200 |
|---|---|---|
| committer | Xiang, Haihao <haihao.xiang@intel.com> | 2018-07-30 08:37:50 +0800 |
| commit | eefae9c0a7c80a368091577918080c553bb104e0 (patch) | |
| tree | 4d3d0bd72f1ddd874cd19c01abf5d831278c3b37 /configure.ac | |
| parent | 2ff28a13840feb8786d577cdb92d07c1a963a0c8 (diff) | |
| download | libva-eefae9c0a7c80a368091577918080c553bb104e0.tar.gz | |
Check for -fstack-protector
Not all toolchains provide support for -fstack-protector. This patch
provides a configure check to avoid build errors like
/home/buildroot/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/x86_64-buildroot-linux-uclibc/6.4.0/../../../../x86_64-buildroot-linux-uclibc/bin/ld: cannot find -lssp_nonshared
/home/buildroot/buildroot/output/host/opt/ext-toolchain/bin/../lib/gcc/x86_64-buildroot-linux-uclibc/6.4.0/../../../../x86_64-buildroot-linux-uclibc/bin/ld: cannot find -lssp
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index b0b8836..da1908c 100644 --- a/configure.ac +++ b/configure.ac @@ -209,6 +209,22 @@ if test "$ac_cv_have_gnuc_visibility_attribute" = "yes"; then [Defined to 1 if GCC visibility attribute is supported]) fi +# Check for -fstack-protector +ssp_cc=yes +if test "X$CC-cc" != "X"; then + AC_MSG_CHECKING([whether ${CC-cc} accepts -fstack-protector]) + ssp_old_cflags="$CFLAGS" + CFLAGS="$CFLAGS -fstack-protector" + AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[alloca(100);]])], [], [ssp_cc=no]) + AC_MSG_RESULT([$ssp_cc]) + if test "X$ssp_cc" = "Xno"; then + CFLAGS="$ssp_old_cflags" + else + AC_DEFINE([ENABLE_SSP_CC], 1, [Define if SSP C support is enabled.]) + fi +fi +AM_CONDITIONAL(USE_SSP, test "$ssp_cc" = "yes") + # Check for DRM (mandatory) LIBDRM_VERSION=libdrm_version PKG_CHECK_MODULES([DRM], [libdrm >= $LIBDRM_VERSION]) |