Changeset 563 for trunk/aclocal.m4

Timestamp:

Jun 30, 2021, 10:22:04 PM (3 years ago)

Author:

katerina

Message:

Fix for ticket #453 (configure check for invalid negative options).

File:

• trunk/aclocal.m4 (modified) (1 diff)

trunk/aclocal.m4

@@ -1244 +1244 @@
      AC_MSG_CHECKING([whether ${CC} accepts $1])
      saved_cflags="$CFLAGS"
-     CFLAGS="$CFLAGS -Werror $1"
+     # any -Wno- option will always succeed :-(
+     flag_check_opt=`echo $1 | sed 's,-Wno-,-W,'`
+     CFLAGS="$CFLAGS -Werror $flag_check_opt"
      AC_TRY_COMPILE(,, flag_check_cv=yes, flag_check_cv=no)
      CFLAGS="$saved_cflags"
-
      if test $flag_check_cv = yes; then
         CFLAGS="$CFLAGS $1"