diff options
| author | fanquake <fanquake@gmail.com> | 2020-02-06 18:38:45 +0800 |
|---|---|---|
| committer | fanquake <fanquake@gmail.com> | 2020-04-30 18:02:04 +0800 |
| commit | 0ae8f18dfe143051fec6ae10ea7df10142e3ff2f (patch) | |
| tree | ff235aba45d66e9b0ec22d4110167c6dbe7d3a19 /configure.ac | |
| parent | 3a0fd7726b8b916de6cce33bb67f48990575f923 (diff) | |
build: add -Wgnu to compile flags
When compiling with Clang, this will warn when GNU extensions are
used.
Info: https://clang.llvm.org/docs/DiagnosticsReference.html#wgnu
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index b681f3f6de..6046b05611 100644 --- a/configure.ac +++ b/configure.ac @@ -349,6 +349,7 @@ fi if test "x$CXXFLAGS_overridden" = "xno"; then AX_CHECK_COMPILE_FLAG([-Wall],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wall"],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-Wextra],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wextra"],,[[$CXXFLAG_WERROR]]) + AX_CHECK_COMPILE_FLAG([-Wgnu],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wgnu"],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-Wformat],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wformat"],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-Wvla],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wvla"],,[[$CXXFLAG_WERROR]]) AX_CHECK_COMPILE_FLAG([-Wswitch],[WARN_CXXFLAGS="$WARN_CXXFLAGS -Wswitch"],,[[$CXXFLAG_WERROR]]) |