when make BaseTools by VS2013, LzmaEnc.c report warning C4127:
conditional expression is constant, so this patch fix this issue.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Yonghong Zhu <[email protected]>
---
 BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c 
b/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
index c6717ee..297db9d 100644
--- a/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
+++ b/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
@@ -1364,12 +1364,13 @@ static UInt32 GetOptimum(CLzmaEnc *p, UInt32 position, 
UInt32 *backRes)
       while (--lenTest >= 2);
       lenTest = lenTestTemp;
       
       if (repIndex == 0)
         startLen = lenTest + 1;
-        
+      #ifndef _MSC_VER
       if (1 /* _maxMode */)
+      #endif
         {
           UInt32 lenTest2 = lenTest + 1;
           UInt32 limit = lenTest2 + p->numFastBytes;
           UInt32 nextRepMatchPrice;
           if (limit > numAvailFull)
-- 
2.6.1.windows.1

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