[gtk: 4/5] Update gtkpopcountprivate.h: undefined macro outside msvc

[Matthias Clasen <matthiasc src gnome org>]

commit 106ac7c782e2b502e4b6553dc0e6a623c9f1075c
Author: Sebastian Cherek <scherek outlook com>
Date:   Sat Jun 12 17:35:13 2021 +0000

    Update gtkpopcountprivate.h: undefined macro outside msvc

 gtk/gtkpopcountprivate.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/gtk/gtkpopcountprivate.h b/gtk/gtkpopcountprivate.h
index e0eeb3fdf8..d2dff51990 100644
--- a/gtk/gtkpopcountprivate.h
+++ b/gtk/gtkpopcountprivate.h
@@ -20,7 +20,7 @@
 
 #pragma once
 
-#if (_MSC_VER && !_M_ARM && !_M_ARM64) && (__AVX__ || __SSE4_2__ || __POPCNT__)
+#if (defined(_MSC_VER) && !_M_ARM && !_M_ARM64) && (__AVX__ || __SSE4_2__ || __POPCNT__)
 #include <intrin.h>
 
 static inline guint