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-rw-r--r--src/mesa/main/querymatrix.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/mesa/main/querymatrix.c b/src/mesa/main/querymatrix.c
index a6b04e95519..ca292aa0e89 100644
--- a/src/mesa/main/querymatrix.c
+++ b/src/mesa/main/querymatrix.c
@@ -70,7 +70,8 @@ fpclassify(double x)
}
}
-#elif defined(__APPLE__) || defined(__CYGWIN__) || defined(__FreeBSD__)
+#elif defined(__APPLE__) || defined(__CYGWIN__) || defined(__FreeBSD__) || \
+ (defined(__sun) && defined(__C99FEATURES__))
/* fpclassify is available. */