Change preprocessor check to _WIN32

Change-Id: I841dc0b8ebb150ac998f4076c148d7bb187e4301

diff --git a/ivfenc.c b/ivfenc.c
index 57c04dd..c20df5b 100644 (file)
--- a/ivfenc.c
+++ b/ivfenc.c
@@ -12,7 +12,7 @@
 /* This is a simple program that encodes YV12 files and generates ivf
  * files using the new interface.
  */
-#if defined(_MSC_VER)
+#if defined(_WIN32)
 #define USE_POSIX_MMAP 0
 #else
 #define USE_POSIX_MMAP 1