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author | Xavier Claessens <xclaesse@src.gnome.org> | 2007-12-29 23:58:47 +0800 |
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committer | Xavier Claessens <xclaesse@src.gnome.org> | 2007-12-29 23:58:47 +0800 |
commit | e4358acdec7b8c278a1950a3da24bab387a0e7b3 (patch) | |
tree | 9a15f253d9c45a90a8794143ecdd854650d58af1 /m4/acinclude.m4 | |
parent | b8607414ea0e41c44a09d31ebcd0437a3c867a24 (diff) | |
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Revert "merge git work"
This reverts commit 0cfd80847f0d66967f56c7d6b3eb46793f725859.
svn path=/trunk/; revision=519
Diffstat (limited to 'm4/acinclude.m4')
-rw-r--r-- | m4/acinclude.m4 | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/m4/acinclude.m4 b/m4/acinclude.m4 new file mode 100644 index 000000000..3120d8620 --- /dev/null +++ b/m4/acinclude.m4 @@ -0,0 +1,65 @@ +dnl Turn on the additional warnings last, so -Werror doesn't affect other tests. + +AC_DEFUN([IDT_COMPILE_WARNINGS],[ + if test -f $srcdir/autogen.sh; then + default_compile_warnings="error" + else + default_compile_warnings="no" + fi + + AC_ARG_WITH(compile-warnings, + AS_HELP_STRING([--with-compile-warnings=@<:@no/yes/error@:>@], + [Compiler warnings]), + [enable_compile_warnings="$withval"], + [enable_compile_warnings="$default_compile_warnings"]) + + warnCFLAGS= + if test "x$GCC" != xyes; then + enable_compile_warnings=no + fi + + warning_flags= + realsave_CFLAGS="$CFLAGS" + + case "$enable_compile_warnings" in + no) + warning_flags= + ;; + yes) + warning_flags="-Wall -Wunused -Wmissing-prototypes -Wmissing-declarations" + ;; + maximum|error) + warning_flags="-Wall -Wunused -Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wpointer-arith" + CFLAGS="$warning_flags $CFLAGS" + for option in -Wno-sign-compare -Wno-pointer-sign; do + SAVE_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS $option" + AC_MSG_CHECKING([whether gcc understands $option]) + AC_TRY_COMPILE([], [], + has_option=yes, + has_option=no,) + CFLAGS="$SAVE_CFLAGS" + AC_MSG_RESULT($has_option) + if test $has_option = yes; then + warning_flags="$warning_flags $option" + fi + unset has_option + unset SAVE_CFLAGS + done + unset option + if test "$enable_compile_warnings" = "error" ; then + warning_flags="$warning_flags -Werror" + fi + ;; + *) + AC_MSG_ERROR(Unknown argument '$enable_compile_warnings' to --enable-compile-warnings) + ;; + esac + CFLAGS="$realsave_CFLAGS" + AC_MSG_CHECKING(what warning flags to pass to the C compiler) + AC_MSG_RESULT($warning_flags) + + WARN_CFLAGS="$warning_flags" + AC_SUBST(WARN_CFLAGS) +]) + |