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-rw-r--r--src/libs/zlib-1.2.6/gzguts.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/libs/zlib-1.2.6/gzguts.h b/src/libs/zlib-1.2.6/gzguts.h
index 3107c363..1c41c5a1 100644
--- a/src/libs/zlib-1.2.6/gzguts.h
+++ b/src/libs/zlib-1.2.6/gzguts.h
@@ -31,6 +31,12 @@
# include <io.h>
#endif
+#ifdef VBOX /* Solves missing seek, read, open, close, write functions. */
+# ifdef _MSC_VER
+# include <io.h>
+# endif
+#endif
+
#ifdef NO_DEFLATE /* for compatibility with old definition */
# define NO_GZCOMPRESS
#endif