Module: Mesa Branch: master Commit: 8475526a3842580f00a043bca8f821e14e9f5eb7 URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=8475526a3842580f00a043bca8f821e14e9f5eb7
Author: Jonathan Gray <j...@jsg.id.au> Date: Tue Mar 17 13:16:05 2015 +1100 configure: check if compiler supports -Werror=vla. Check if the compiler supports -Werror=vla before using it. -Wvla was introduced with GCC 4.3 and is not present in 4.2. Fixes the build on OpenBSD. v2: Fix statement order, and quote $save_CFLAGS. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89433 Signed-off-by: Jonathan Gray <j...@jsg.id.au> Signed-off-by: Jose Fonseca <jfons...@vmware.com> --- configure.ac | 16 ++++++++++++++-- 1 file changed, 14 insertions(+), 2 deletions(-) diff --git a/configure.ac b/configure.ac index a3b0ebd..8c90b41 100644 --- a/configure.ac +++ b/configure.ac @@ -278,8 +278,20 @@ if test "x$GCC" = xyes; then # - non-Linux/Posix OpenGL portions needs to build on MSVC 2013 (which # supports most of C99) # - the rest has no compiler compiler restrictions - MSVC2013_COMPAT_CFLAGS="-Werror=vla -Werror=pointer-arith" - MSVC2013_COMPAT_CXXFLAGS="-Werror=vla -Werror=pointer-arith" + MSVC2013_COMPAT_CFLAGS="-Werror=pointer-arith" + MSVC2013_COMPAT_CXXFLAGS="-Werror=pointer-arith" + + # Enable -Werror=vla if compiler supports it + save_CFLAGS="$CFLAGS" + AC_MSG_CHECKING([whether $CC supports -Werror=vla]) + CFLAGS="$CFLAGS -Werror=vla" + AC_LINK_IFELSE([AC_LANG_PROGRAM()], + [MSVC2013_COMPAT_CFLAGS="$MSVC2013_COMPAT_CFLAGS -Werror=vla"; + MSVC2013_COMPAT_CXXFLAGS="$MSVC2013_COMPAT_CXXFLAGS -Werror=vla"; + AC_MSG_RESULT([yes])], + AC_MSG_RESULT([no])); + CFLAGS="$save_CFLAGS" + MSVC2008_COMPAT_CFLAGS="$MSVC2013_COMPAT_CFLAGS -Werror=declaration-after-statement" MSVC2008_COMPAT_CXXFLAGS="$MSVC2013_COMPAT_CXXFLAGS" fi _______________________________________________ mesa-commit mailing list mesa-commit@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-commit
