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| author | Emil Velikov <emil.velikov@collabora.com> | 2018-10-24 18:53:11 +0100 |
|---|---|---|
| committer | Emil Velikov <emil.l.velikov@gmail.com> | 2018-10-30 16:41:05 +0000 |
| commit | 29283921b72fa9386322fc9eb301d00e88b634b6 (patch) | |
| tree | 3543aef26be0dbc6ce7a131de801cce2ddf06cfb /configure.ac | |
| parent | a8bed38b54a22450960e4ff2ca1e30d8cf33c141 (diff) | |
| download | mesa-29283921b72fa9386322fc9eb301d00e88b634b6.tar.gz mesa-29283921b72fa9386322fc9eb301d00e88b634b6.tar.bz2 mesa-29283921b72fa9386322fc9eb301d00e88b634b6.zip | |
m4: add Werror when checking for compiler flags
Seemingly that at some point clang started accepting _any_ flags,
whereas previously it would error out.
These days, you can give it -Whamsandwich and it will succeed, while
at the same time throwing an annoying warning.
Add -Werror so that everything gets flagged and set accordingly.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108082
Cc: Vinson Lee <vlee@freedesktop.org>
Repored-by: Vinson Lee <vlee@freedesktop.org>
Signed-off-by: Emil Velikov <emil.velikov@collabora.com>
Reviewed-by: Dylan Baker <dylan@pnwbakers.com>
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 156fb15fd3d..be9674a0c1d 100644 --- a/configure.ac +++ b/configure.ac @@ -297,6 +297,12 @@ esac AM_CONDITIONAL(HAVE_ANDROID, test "x$android" = xyes) +# Toggle Werror since at some point clang started treating unknown -W +# flags as warnings, succeeding with the build, yet issuing an annoying +# warning. +save_CFLAGS="$CFLAGS" +export CFLAGS="$CFLAGS -Werror" + dnl dnl Check compiler flags dnl @@ -312,6 +318,11 @@ AX_CHECK_COMPILE_FLAG([-fno-math-errno], [CFLAGS="$CFLAGS AX_CHECK_COMPILE_FLAG([-fno-trapping-math], [CFLAGS="$CFLAGS -fno-trapping-math"]) AX_CHECK_COMPILE_FLAG([-fvisibility=hidden], [VISIBILITY_CFLAGS="-fvisibility=hidden"]) +CFLAGS="$save_CFLAGS" + +# Toggle Werror since at some point clang started treating unknown -W +# flags as warnings, succeeding with the build, yet issuing an annoying +# warning. dnl dnl Check C++ compiler flags dnl |