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-rw-r--r--tools/mingw_support.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/mingw_support.h b/tools/mingw_support.h
index ee07290b5a..48b8010f0b 100644
--- a/tools/mingw_support.h
+++ b/tools/mingw_support.h
@@ -34,6 +34,14 @@
#define MAP_SHARED 0x01 /* Share changes */
#define MAP_PRIVATE 0x02 /* Changes are private */
+/* File perms */
+#ifndef S_IRGRP
+# define S_IRGRP 0
+#endif
+#ifndef S_IWGRP
+# define S_IWGRP 0
+#endif
+
/* Windows 64-bit access macros */
#define LODWORD(x) ((DWORD)((DWORDLONG)(x)))
#define HIDWORD(x) ((DWORD)(((DWORDLONG)(x) >> 32) & 0xffffffff))