https://bugs.gentoo.org/919228

--- a/test/xdeltatest.c
+++ b/test/xdeltatest.c
@@ -512,7 +512,7 @@ run_command (TestProfile *tp, int zlevel, int slevel, File* from, File* to, File
   if (zlevel > 0 && starts_with (tp->name, "diff"))
     {
       Patch  *patch   = read_patch (out, & sbuf);
-      gzFile *rewrite = gzopen (out->name, diff_gzargs);
+      gzFile rewrite = gzopen (out->name, diff_gzargs);
 
       if (! rewrite) fail ();
 
diff --git a/xdelta-1.1.4/xdmain.c b/../../xdelta-1.1.4.new/xdmain.c
index b1abc74..9c27195 100755
--- a/xdmain.c
+++ b/xdmain.c
@@ -179,6 +179,7 @@ struct _XdFileHandle
   guint    narrow_high;
   guint    current_pos;
   FILE*    in;
+  gzFile   zin;
   gboolean (* in_read) (XdFileHandle* handle, void* buf, gint nbyte);
   gboolean (* in_close) (XdFileHandle* handle);
   gboolean in_compressed;
@@ -520,7 +521,7 @@ xd_gzwrite (XdFileHandle* fh, const void* buf, gint nbyte)
 static gboolean
 xd_gzread (XdFileHandle* fh, void* buf, gint nbyte)
 {
-  return gzread (fh->in, buf, nbyte) == nbyte;
+  return gzread (fh->zin, buf, nbyte) == nbyte;
 }
 
 static gboolean
@@ -532,7 +533,7 @@ xd_gzclose (XdFileHandle* fh)
 static gboolean
 xd_gzrclose (XdFileHandle* fh)
 {
-  return gzclose (fh->in) == Z_OK;
+  return gzclose (fh->zin) == Z_OK;
 }
 
 static void
@@ -1022,13 +1023,13 @@ xd_handle_narrow (XdFileHandle* fh, guint low, guint high, gboolean compressed)
 	}
 
       g_assert (fh->fd >= 0);
-      fh->in = gzdopen (dup (fh->fd), "rb");
+      fh->zin = gzdopen (dup (fh->fd), "rb");
       fh->in_read =  &xd_gzread;
       fh->in_close = &xd_gzrclose;
       fh->in_compressed = TRUE;
       fh->current_pos = 0;
 
-      if (! fh->in)
+      if (! fh->zin)
 	{
 	  xd_error ("gzdopen failed: %s\n", g_strerror (errno));
 	  return -1;