diff --git a/src/mesa/main/imports.h b/src/mesa/main/imports.h
index 73913b5..4f24b91 100644
--- a/src/mesa/main/imports.h
+++ b/src/mesa/main/imports.h
@@ -156,6 +156,11 @@ static inline int isblank(int ch) { return ch == ' ' || ch == '\t'; }
 #endif
 /*@}*/
 
+#if defined(__SUNPRO_C)
+#define sqrtf(f) ((float) sqrt(f))
+#endif
+
+
 /***
  *** LOG2: Log base 2 of float
  ***/