add -Wwrite-strings in debug mode

diff --git a/m4/openbox.m4 b/m4/openbox.m4
index 663f91d..796e278 100644 (file)
--- a/m4/openbox.m4
+++ b/m4/openbox.m4
@@ -64,7 +64,7 @@ AC_DEFUN([OB_COMPILER_FLAGS],
     if test "$GCC" = "yes"; then
        AC_MSG_RESULT([yes])
        if test "$DEBUG" = "yes"; then
-           FLAGS="$FLAGS -O0 -g -fno-inline"
+           FLAGS="$FLAGS -O0 -g -fno-inline -Wwrite-strings"
            FLAGS="$FLAGS -Wall -Wsign-compare -Waggregate-return"
            FLAGS="$FLAGS -Wcast-qual -Wbad-function-cast -Wpointer-arith"
             # for Python.h