From: Dan Winship <[email protected]>
CFLAGS is supposed to be reserved for the user
---
m4/compiler_warnings.m4 | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/m4/compiler_warnings.m4 b/m4/compiler_warnings.m4
index 3037c58..bdd603d 100644
--- a/m4/compiler_warnings.m4
+++ b/m4/compiler_warnings.m4
@@ -5,7 +5,7 @@ AC_DEFUN([NM_COMPILER_WARNINGS],
AC_MSG_CHECKING(for more warnings)
if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
AC_MSG_RESULT(yes)
- CFLAGS="-Wall -std=gnu89 $CFLAGS"
+ AM_CFLAGS="-Wall -std=gnu89 $AM_CFLAGS"
for option in -Wshadow -Wmissing-declarations -Wmissing-prototypes \
-Wdeclaration-after-statement \
@@ -20,17 +20,19 @@ if test "$GCC" = "yes" -a "$set_more_warnings" != "no"; then
AC_TRY_COMPILE([], [],
has_option=yes,
has_option=no,)
- if test $has_option = no; then
- CFLAGS="$SAVE_CFLAGS"
+ if test $has_option = yes; then
+ AM_CFLAGS="$AM_CFLAGS $option"
fi
+ CFLAGS="$SAVE_CFLAGS"
AC_MSG_RESULT($has_option)
unset has_option
unset SAVE_CFLAGS
done
unset option
if test "x$set_more_warnings" = xerror; then
- CFLAGS="$CFLAGS -Werror"
+ AM_CFLAGS="$AM_CFLAGS -Werror"
fi
+ AC_SUBST(AM_CFLAGS)
else
AC_MSG_RESULT(no)
fi
--
2.5.0
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