1 files changed, 3 insertions, 0 deletions
diff --git a/gzio.h b/gzio.h
index 4b5e9ee9..ae888728 100644
--- a/gzio.h
+++ b/gzio.h
@@ -33,3 +33,6 @@ gzFile w_gzopen_mode(const wchar_t *wname, const wchar_t *wmode,
 gzFile w_gzdopen_mode(int fd, const wchar_t *wmode,
                       const struct stdio_mode m, val self);
 val make_gzio_stream(gzFile f, int fd, val descr, int is_output);
+#if HAVE_FORK_STUFF
+val make_gzio_pipe_stream(gzFile f, int fd, val descr, int is_output, pid_t pid);
+#endif