diff options
Diffstat (limited to 'm4/ax_compiler_flags.m4')
| -rw-r--r-- | m4/ax_compiler_flags.m4 | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/m4/ax_compiler_flags.m4 b/m4/ax_compiler_flags.m4 index 1781b40d..061dd866 100644 --- a/m4/ax_compiler_flags.m4 +++ b/m4/ax_compiler_flags.m4 @@ -25,7 +25,9 @@ # # By providing a consistent --enable-compile-warnings argument across all # projects using this macro, continuous integration systems can easily be -# configured the same for all projects. +# configured the same for all projects. Automated systems or build +# systems aimed at beginners may want to pass the --disable-Werror +# argument to unconditionally prevent warnings being fatal. # # --enable-compile-warnings can take the values: # @@ -35,6 +37,8 @@ # * maximum: The above, plus additional warnings which enforce a particular # coding style # * error: The above, plus -Werror so that all warnings are fatal. +# Use --disable-Werror to override this and disable fatal +# warnings. # # The set of flags enabled at each level can be augmented using the # EXTRA-*-CFLAGS and EXTRA-*-LDFLAGS variables. Flags should not be @@ -83,7 +87,7 @@ # and this notice are preserved. This file is offered as-is, without any # warranty. -#serial 7 +#serial 8 AC_DEFUN([AX_COMPILER_FLAGS],[ AX_REQUIRE_DEFINED([AX_COMPILER_FLAGS_CFLAGS]) @@ -96,8 +100,17 @@ AC_DEFUN([AX_COMPILER_FLAGS],[ [AS_IF([test "$3" = "yes"], [enable_compile_warnings="yes"], [enable_compile_warnings="error"])]) + AC_ARG_ENABLE([Werror], + AS_HELP_STRING([--disable-Werror], + [Unconditionally make all compiler warnings non-fatal]),, + [enable_Werror=maybe]) # Return the user’s chosen warning level + AS_IF([test "$enable_Werror" = "no" -a \ + "$enable_compile_warnings" = "error"],[ + enable_compile_warnings="maximum" + ]) + ax_enable_compile_warnings=$enable_compile_warnings AX_COMPILER_FLAGS_CFLAGS([$1],[$3],[$4],[$5],[$6],[$7],[$8]) |