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-rw-r--r--src/glsl/linker.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/glsl/linker.cpp b/src/glsl/linker.cpp
index 3f5eac1e26c..e11b6fa9a2a 100644
--- a/src/glsl/linker.cpp
+++ b/src/glsl/linker.cpp
@@ -64,6 +64,7 @@
* \author Ian Romanick <[email protected]>
*/
+#include <ctype.h>
#include "main/core.h"
#include "glsl_symbol_table.h"
#include "glsl_parser_extras.h"