Buildfix for Apple

diff --git a/deps/libchdr/deps/zlib-1.2.11/gzguts.h b/deps/libchdr/deps/zlib-1.2.11/gzguts.h
index 990a4d2..45be573 100644 (file)
--- a/deps/libchdr/deps/zlib-1.2.11/gzguts.h
+++ b/deps/libchdr/deps/zlib-1.2.11/gzguts.h
@@ -3,6 +3,10 @@
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
+#ifndef _WIN32
+#  include <unistd.h>
+#endif
+
 #ifdef _LARGEFILE64_SOURCE
 #  ifndef _LARGEFILE_SOURCE
 #    define _LARGEFILE_SOURCE 1