Optimized versions now buildable on Solaris.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@78457 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/ppc/multc3.c b/lib/ppc/multc3.c
index d5a77b1..0944263 100644
--- a/lib/ppc/multc3.c
+++ b/lib/ppc/multc3.c
@@ -1,9 +1,14 @@
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
+/* This file is distributed under the University of Illinois Open Source
+ * License. See LICENSE.TXT for details.
+ */
 
 #include "DD.h"
 #include <math.h>
 
+#if !defined(INFINITY) && defined(HUGE_VAL)
+#define INFINITY HUGE_VAL
+#endif /* INFINITY */
+
 #define makeFinite(x)	{ \
 							(x).hi = __builtin_copysign(isinf((x).hi) ? 1.0 : 0.0, (x).hi); \
 							(x).lo = 0.0; \