From d8a82b088b4b3816dc7e7b91bac149e34ea2c45b Mon Sep 17 00:00:00 2001
From: Kaz Kylheku <kaz@kylheku.com>
Date: Tue, 31 May 2022 01:56:00 -0700
Subject: gzio: fix multiple definition of gzio_stream_s.

Failed on Cygwin.

* gzio.c (gzio_stream_s): Variable defined here.

* gzio.h (gzio_stream_s): Turn to declaration with extern.
---
 gzio.c | 2 ++
 gzio.h | 2 +-
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/gzio.c b/gzio.c
index 2485201a..bbdc1d45 100644
--- a/gzio.c
+++ b/gzio.c
@@ -61,6 +61,8 @@ struct gzio_handle {
   unsigned is_output : 8;
 };
 
+val gzio_stream_s;
+
 struct cobj_class *gzio_stream_cls;
 
 static void gzio_stream_print(val stream, val out, val pretty,
diff --git a/gzio.h b/gzio.h
index 2f9cf164..4b5e9ee9 100644
--- a/gzio.h
+++ b/gzio.h
@@ -26,7 +26,7 @@
  * POSSIBILITY OF SUCH DAMAGE.
  */
 
-val gzio_stream_s;
+extern val gzio_stream_s;
 void gzio_init(void);
 gzFile w_gzopen_mode(const wchar_t *wname, const wchar_t *wmode,
                      const struct stdio_mode m, val self);
-- 
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