add mod_export in a couple of places where it was missing

ChangeLog

@@ -1,3 +1,7 @@
+2001-05-23  Oliver Kiddle  <opk@zsh.org>
+
+	* unposted: Src/signals.c, Src/utils.c: add missing mod_exports
+
 2001-05-22  Peter Stephenson  <pws@csr.com>
 
 	* 14430: Test/ztst.zsh: Be less cavalier about exiting on failure

Src/signals.c

@@ -282,7 +282,7 @@ signal_unblock(sigset_t set)
  * be the given signal mask       */
 
 /**/
-sigset_t
+mod_export sigset_t
 signal_setmask(sigset_t set)
 {
     sigset_t oset;

Src/utils.c

@@ -163,7 +163,7 @@ zerrmsg(const char *fmt, const char *str, int num)
  * This is used instead of putchar since it can be a macro. */
 
 /**/
-int
+mod_export int
 putraw(int c)
 {
     putc(c, stdout);