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-rw-r--r--m4/compiler_warnings.m411
1 files changed, 7 insertions, 4 deletions
diff --git a/m4/compiler_warnings.m4 b/m4/compiler_warnings.m4
index 6cea2f7..12bd26a 100644
--- a/m4/compiler_warnings.m4
+++ b/m4/compiler_warnings.m4
@@ -1,11 +1,11 @@
AC_DEFUN([NM_COMPILER_WARNINGS],
[AC_ARG_ENABLE(more-warnings,
- AS_HELP_STRING([--enable-more-warnings], [Maximum compiler warnings]),
- set_more_warnings="$enableval",set_more_warnings=yes)
-AC_MSG_CHECKING(for more warnings, including -Werror)
+ AS_HELP_STRING([--enable-more-warnings], [Possible values: no/yes/error]),
+ set_more_warnings="$enableval",set_more_warnings=error)
+AC_MSG_CHECKING(for more warnings)
if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
AC_MSG_RESULT(yes)
- CFLAGS="-Wall -Werror -std=gnu89 $CFLAGS"
+ CFLAGS="-Wall -std=gnu89 $CFLAGS"
for option in -Wshadow -Wmissing-declarations -Wmissing-prototypes \
-Wdeclaration-after-statement -Wstrict-prototypes \
@@ -25,6 +25,9 @@ if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
unset SAVE_CFLAGS
done
unset option
+ if test "x$set_more_warnings" = xerror; then
+ CFLAGS="$CFLAGS -Werror"
+ fi
else
AC_MSG_RESULT(no)
fi