From 30b9edc2a612695ef5fd9d4acb61badd286f570d Mon Sep 17 00:00:00 2001
From: "Ryan C. Gordon" <icculus@icculus.org>
Date: Tue, 24 Feb 2009 02:57:47 -0500
Subject: [PATCH] Quick optimization.

---
 mojoshader_preprocessor.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mojoshader_preprocessor.c b/mojoshader_preprocessor.c
index 8ade0e48..0bf8809d 100644
--- a/mojoshader_preprocessor.c
+++ b/mojoshader_preprocessor.c
@@ -529,6 +529,9 @@ static int push_source(Context *ctx, const char *fname, const char *source,
                        unsigned int srclen, unsigned int linenum,
                        MOJOSHADER_includeClose close_callback, Define *defs)
 {
+    if (srclen == 0)
+        return 1;  // nothing to do: just pretend you did it.
+
     IncludeState *state = get_include(ctx);
     if (state == NULL)
         return 0;