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-rw-r--r--src/mesa/swrast/s_aaline.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/mesa/swrast/s_aaline.c b/src/mesa/swrast/s_aaline.c
index 0add124d420..f3258e813a6 100644
--- a/src/mesa/swrast/s_aaline.c
+++ b/src/mesa/swrast/s_aaline.c
@@ -23,6 +23,7 @@
*/
+#include "c99_math.h"
#include "main/glheader.h"
#include "main/imports.h"
#include "main/macros.h"