(doprnt1): Declare `charbuf' as unsigned char.

diff --git a/src/doprnt.c b/src/doprnt.c
index 162953895139d465270367c796d60889dbdac6b7..b88acf421186bdeed6595c606380c5d11d4954df 100644 (file)
--- a/src/doprnt.c
+++ b/src/doprnt.c
@@ -111,7 +111,7 @@ doprnt1 (lispstrings, buffer, bufsize, format, format_end, nargs, args)
   char *fmtcpy;
   int minlen;
   int size;                    /* Field width factor; e.g., %90d */
-  char charbuf[5];             /* Used for %c.  */
+  unsigned char charbuf[5];    /* Used for %c.  */
 
   if (format_end == 0)
     format_end = format + strlen (format);