1 files changed, 1 insertions, 1 deletions
diff --git a/gzguts.h b/gzguts.h
index 84a9797..0e7ed43 100644
--- a/gzguts.h
+++ b/gzguts.h
@@ -27,7 +27,7 @@
 #  define NO_GZCOMPRESS
 #endif
-#ifdef WIN32
+#ifdef _MSC_VER
 #  include <io.h>
 #  define vsnprintf _vsnprintf
 #endif

diff --git a/gzguts.h b/gzguts.h index 84a9797..0e7ed43 100644 --- a/gzguts.h +++ b/gzguts.h
@@ -27,7 +27,7 @@
27	# define NO_GZCOMPRESS	27	# define NO_GZCOMPRESS
28	#endif	28	#endif
29		29
30	#ifdef WIN32	30	#ifdef _MSC_VER
31	# include <io.h>	31	# include <io.h>
32	# define vsnprintf _vsnprintf	32	# define vsnprintf _vsnprintf
33	#endif	33	#endif