(overlay_str_buf): Declare as unsigned char *.

diff --git a/src/buffer.c b/src/buffer.c
index 426e830ff3b714850ef636f9986825edf82318a9..c2159627eb5e639578ef9a06b839ef2b28febb77 100644 (file)
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -2121,7 +2121,7 @@ struct sortstrlist
    it's more efficient to hold onto the memory instead of repeatedly
    allocating and freeing it.  */
 static struct sortstrlist overlay_heads, overlay_tails;
-static char *overlay_str_buf;
+static unsigned char *overlay_str_buf;
 
 /* Allocated length of overlay_str_buf.  */
 static int overlay_str_len;