[glib/glib-2-30] gmappedfile.c: Define S_IFREG on Win32 when it's not available

[Chun-wei Fan <fanchunwei src gnome org>]

commit 10c4ca4db06b99d54bd7192af9d25a1a35b5b02b
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Thu Sep 22 22:05:39 2011 +0800

    gmappedfile.c: Define S_IFREG on Win32 when it's not available
    
    Make a workaround for S_IFREG in gmappedfile.c on Windows as it may not be
    available for a given compiler on that platform

 glib/gmappedfile.c |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)
---
diff --git a/glib/gmappedfile.c b/glib/gmappedfile.c
index f94bf31..2f1fb71 100644
--- a/glib/gmappedfile.c
+++ b/glib/gmappedfile.c
@@ -41,6 +41,10 @@
 #define fstat(a,b) _fstati64(a,b)
 #define stat _stati64
 
+#ifndef S_ISREG
+#define S_ISREG(m) (((m) & _S_IFMT) == _S_IFREG)
+#endif
+
 #endif
 
 #include "gconvert.h"