Fix compilation on mingw

BUG=angleproject:1795 Change-Id: Ic25805f99154395c9af28197ceb1218f9c5c3138 Reviewed-on: https://chromium-review.googlesource.com/434457Reviewed-by: Jamie Madill <jmadill@chromium.org> Commit-Queue: Jamie Madill <jmadill@chromium.org>

Fix compilation on mingw
f8de6667 · shinchiro · Commit Bot · 1d37bc50 · f8de6667 · f8de6667
Commit f8de6667 authored Jan 29, 2017 by shinchiro Committed by Commit Bot Feb 07, 2017
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AUTHORS AUTHORS +1 -0

mathutil.h src/common/mathutil.h +2 -2

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--- a/AUTHORS
+++ b/AUTHORS
@@ -46,3 +46,4 @@ Jinyoung Hur
 Sebastian Bergstein
 James Ross-Gowan
 Nickolay Artamonov
+Ihsan Akmal
--- a/src/common/mathutil.h
+++ b/src/common/mathutil.h
@@ -807,9 +807,9 @@ inline uint32_t BitfieldReverse(uint32_t value)
 // Count the 1 bits.
 inline int BitCount(unsigned int bits)
 {
-#if defined(ANGLE_PLATFORM_WINDOWS)
+#if defined(_MSC_VER)
    return static_cast<int>(__popcnt(bits));
-#elif defined(ANGLE_PLATFORM_POSIX)
+#elif defined(__GNUC__)
    return __builtin_popcount(bits);
 #else
 #error Please implement bit count for your platform!