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-rw-r--r--llvm/lib/Support/Windows/WindowsSupport.h10
1 files changed, 4 insertions, 6 deletions
diff --git a/llvm/lib/Support/Windows/WindowsSupport.h b/llvm/lib/Support/Windows/WindowsSupport.h
index c65e3148921..cb091f18640 100644
--- a/llvm/lib/Support/Windows/WindowsSupport.h
+++ b/llvm/lib/Support/Windows/WindowsSupport.h
@@ -47,11 +47,10 @@
#include <string>
#include <vector>
-#if !defined(__CYGWIN__) && !defined(__MINGW32__)
-#include <VersionHelpers.h>
-#else
-// Cygwin does not have the IsWindows8OrGreater() API.
-// Some version of mingw does not have the API either.
+/// Determines if the program is running on Windows 8 or newer. This
+/// reimplements the helpers in the Windows 8.1 SDK, which are intended to
+/// supercede raw calls to GetVersionEx, because old Windows SDKs, Cygwin, and
+/// MinGW don't have VersionSupport.h yet.
inline bool IsWindows8OrGreater() {
OSVERSIONINFO osvi = {};
osvi.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
@@ -60,7 +59,6 @@ inline bool IsWindows8OrGreater() {
return (osvi.dwMajorVersion > 6 ||
(osvi.dwMajorVersion == 6 && osvi.dwMinorVersion >= 2));
}
-#endif // __CYGWIN__
inline bool MakeErrMsg(std::string* ErrMsg, const std::string& prefix) {
if (!ErrMsg)
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