From b84cd9013af00a3c909d83e6b98a7f03ea95e6c2 Mon Sep 17 00:00:00 2001
From: Jeffrey Walton <noloader@gmail.com>
Date: Fri, 31 Jul 2015 04:44:28 -0400
Subject: Supress "-Wmaybe-unitiialized" warning under GCC; guard to ensure it
 does not produce unknown pragma warning under Clang

---
 vmac.cpp | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'vmac.cpp')

diff --git a/vmac.cpp b/vmac.cpp
index 02603829..b15651fc 100644
--- a/vmac.cpp
+++ b/vmac.cpp
@@ -448,6 +448,16 @@ VMAC_Base::VHASH_Update_SSE2(const word64 *data, size_t blocksRemainingInWord64,
 			(rh) += (ih) + ((rl) < (_il));                               \
 		}
 #endif
+		
+// vmac.cpp:404:93: warning: ‘al2’ may be used uninitialized in this function
+//    ... vmac.cpp:479:26: note: ‘al2’ was declared here
+// Valgrind cleared this finding.
+#if GCC_DIAGNOSTIC_AWARE
+# pragma GCC diagnostic push
+# ifndef __clang__
+#  pragma GCC diagnostic ignored "-Wmaybe-uninitialized"
+# endif
+#endif
 
 #if !(defined(_MSC_VER) && _MSC_VER < 1300)
 template <bool T_128BitTag>
@@ -709,6 +719,10 @@ void VMAC_Base::VHASH_Update_Template(const word64 *data, size_t blocksRemaining
 	#endif
 }
 
+#if GCC_DIAGNOSTIC_AWARE
+# pragma GCC diagnostic pop
+#endif
+
 inline void VMAC_Base::VHASH_Update(const word64 *data, size_t blocksRemainingInWord64)
 {
 #if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE && CRYPTOPP_BOOL_X86
-- 
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