From 63c9ebeaff0f238368b59cbe1cb6dc9bbf7cba7d Mon Sep 17 00:00:00 2001
From: Brian Paul <brian.paul@tungstengraphics.com>
Date: Wed, 10 Aug 2005 14:42:21 +0000
Subject: fix static assertion problem for gcc (bug 4022)

---
 src/mesa/shader/slang/slang_utility.h | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

(limited to 'src/mesa/shader')

diff --git a/src/mesa/shader/slang/slang_utility.h b/src/mesa/shader/slang/slang_utility.h
index 0240385e8d..2b040a4446 100644
--- a/src/mesa/shader/slang/slang_utility.h
+++ b/src/mesa/shader/slang/slang_utility.h
@@ -29,7 +29,10 @@
 extern "C" {
 #endif
 
-#define static_assert(expr) do { int _array[(expr) ? 1 : 0]; _array[0]; } while (0)
+/* Compile-time assertions.  If the expression is zero, try to declare an
+ * array of size [-1] to cause compilation error.
+ */
+#define static_assert(expr) do { int _array[(expr) ? 1 : -1]; _array[0]; } while (0)
 
 void slang_alloc_free (void *);
 void *slang_alloc_malloc (unsigned int);
-- 
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