Support building flex files without debug support.
diff --git a/libs/wpp/wpp.c b/libs/wpp/wpp.c
index ec70e87..d7b2dc8 100644
--- a/libs/wpp/wpp.c
+++ b/libs/wpp/wpp.c
@@ -28,7 +28,7 @@
#include "wpp_private.h"
#include "wine/wpp.h"
-int ppdebug;
+int ppdebug, pp_flex_debug;
struct define
{
diff --git a/tools/widl/widl.c b/tools/widl/widl.c
index 2c4a3c6..02e7eee 100644
--- a/tools/widl/widl.c
+++ b/tools/widl/widl.c
@@ -80,6 +80,7 @@
int win32 = 1;
int debuglevel = DEBUGLEVEL_NONE;
+int yy_flex_debug;
int pedantic = 0;
static int do_everything = 1;
diff --git a/tools/wrc/wrc.c b/tools/wrc/wrc.c
index 394efb0..679f0cd 100644
--- a/tools/wrc/wrc.c
+++ b/tools/wrc/wrc.c
@@ -166,6 +166,8 @@
char *cmdline; /* The entire commandline */
time_t now; /* The time of start of wrc */
+int yy_flex_debug;
+
resource_t *resource_top; /* The top of the parsed resources */
int getopt (int argc, char *const *argv, const char *optstring);
