bring back sig_t as void pointer in the rare case we

don't have sighandler_t or __sighandler_t either

Build.sh

@@ -1,5 +1,5 @@
 #!/bin/sh
-# $MirOS: src/bin/mksh/Build.sh,v 1.136 2007/01/17 23:54:39 tg Exp $
+# $MirOS: src/bin/mksh/Build.sh,v 1.137 2007/01/18 00:10:16 tg Exp $
 #-
 # Env: CC, CFLAGS, CPP, CPPFLAGS, LDFLAGS, LIBS, NOWARN, NROFF, TARGET_OS
 # CPPFLAGS recognised: MKSH_SMALL MKSH_NOPWNAM
@@ -346,6 +346,8 @@ if test 1 = $HAVE_SIGHANDLER_T; then
 	HAVE_SIG_T=1
 fi
 
+CPPFLAGS="$CPPFLAGS -DHAVE_SIG_T=$HAVE_SIG_T"
+
 #
 # Environment: signals
 #