1 files changed, 10 insertions, 6 deletions
diff --git a/erts/emulator/drivers/common/gzio.h b/erts/emulator/drivers/common/gzio.h
index 3f1e546140..ea50d922ec 100644
--- a/erts/emulator/drivers/common/gzio.h
+++ b/erts/emulator/drivers/common/gzio.h
@@ -17,11 +17,15 @@
  * %CopyrightEnd%
  */
 
-gzFile erts_gzopen (const char *path, const char *mode);
-int erts_gzread(gzFile file, voidp buf, unsigned len);
-int erts_gzwrite(gzFile file, voidp buf, unsigned len);
-int erts_gzseek(gzFile, int, int);
-int erts_gzflush(gzFile file, int flush);
-int erts_gzclose(gzFile file);
+#include "zlib.h"
+
+typedef struct erts_gzFile* ErtsGzFile;
+
+ErtsGzFile erts_gzopen (const char *path, const char *mode);
+int erts_gzread(ErtsGzFile file, voidp buf, unsigned len);
+int erts_gzwrite(ErtsGzFile file, voidp buf, unsigned len);
+int erts_gzseek(ErtsGzFile, int, int);
+int erts_gzflush(ErtsGzFile file, int flush);
+int erts_gzclose(ErtsGzFile file);
 ErlDrvBinary* erts_gzinflate_buffer(char*, uLong);
 ErlDrvBinary* erts_gzdeflate_buffer(char*, uLong);