Fix "make acp" under Cygwin. DO NOT MERGE.

Change-Id: I52ae8d4835b27a712d4795e7f41fa9ca4f3a822d
diff --git a/libs/host/CopyFile.c b/libs/host/CopyFile.c
index 44c7c2b..3cbe34a 100644
--- a/libs/host/CopyFile.c
+++ b/libs/host/CopyFile.c
@@ -69,7 +69,7 @@
  */
 static bool isHiresMtime(const struct stat* pSrcStat)
 {
-#if defined(WIN32_EXE) || defined(USE_MINGW)
+#if defined(WIN32) || defined(USE_MINGW)
     return 0;
 #elif defined(MACOSX_RSRC)
     return pSrcStat->st_mtimespec.tv_nsec > 0;