harmonise sys_{sig,err}list ⓐ checks, ⓑ uses, ⓒ _decl values when not needed, ⓓ prototypes; ⓔ “const” is a keyword and thus space-separated from the preceding ‘*’ pointer indicator

Build.sh

@@ -1,5 +1,5 @@
 #!/bin/sh
-srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.606 2012/12/27 15:52:47 tg Exp $'
+srcversion='$MirOS: src/bin/mksh/Build.sh,v 1.607 2012/12/28 02:28:29 tg Exp $'
 #-
 # Copyright (c) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010,
 #		2011, 2012
@@ -1528,7 +1528,7 @@ else
 		#define EXTERN
 		#define MKSH_INCLUDES_ONLY
 		#include "sh.h"
-		__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.606 2012/12/27 15:52:47 tg Exp $");
+		__RCSID("$MirOS: src/bin/mksh/Build.sh,v 1.607 2012/12/28 02:28:29 tg Exp $");
 		int main(void) { printf("Hello, World!\n"); return (0); }
 EOF
 	case $cm in
@@ -1567,12 +1567,12 @@ test x"NetBSD" = x"$TARGET_OS" && $e Ignore the compatibility warning.
 
 ac_testn sys_errlist '' "the sys_errlist[] array and sys_nerr" <<-'EOF'
 	extern int sys_nerr;
-	extern char *sys_errlist[];
+	extern const char * const sys_errlist[];
 	int main(void) { return (*sys_errlist[sys_nerr - 1]); }
 EOF
 ac_testn _sys_errlist '!' sys_errlist 0 "the _sys_errlist[] array and _sys_nerr" <<-'EOF'
 	extern int _sys_nerr;
-	extern char *_sys_errlist[];
+	extern const char * const _sys_errlist[];
 	int main(void) { return (*_sys_errlist[_sys_nerr - 1]); }
 EOF
 if test 1 = "$HAVE__SYS_ERRLIST"; then
@@ -1830,7 +1830,7 @@ ac_test sys_errlist_decl sys_errlist 0 "for declaration of sys_errlist[] and sys
 	#include "sh.h"
 	int main(void) { return (*sys_errlist[sys_nerr - 1]); }
 EOF
-ac_test sys_siglist_decl sys_siglist 1 'for declaration of sys_siglist[]' <<-'EOF'
+ac_test sys_siglist_decl sys_siglist 0 'for declaration of sys_siglist[]' <<-'EOF'
 	#define MKSH_INCLUDES_ONLY
 	#include "sh.h"
 	int main(void) { return (sys_siglist[0][0]); }

check.t

@@ -1,4 +1,4 @@
-# $MirOS: src/bin/mksh/check.t,v 1.576 2012/12/24 14:37:13 tg Exp $
+# $MirOS: src/bin/mksh/check.t,v 1.577 2012/12/28 02:28:30 tg Exp $
 # $OpenBSD: bksl-nl.t,v 1.2 2001/01/28 23:04:56 niklas Exp $
 # $OpenBSD: history.t,v 1.5 2001/01/28 23:04:56 niklas Exp $
 # $OpenBSD: read.t,v 1.3 2003/03/10 03:48:16 david Exp $
@@ -29,7 +29,7 @@
 # http://www.freebsd.org/cgi/cvsweb.cgi/src/tools/regression/bin/test/regress.sh?rev=HEAD
 
 expected-stdout:
-	@(#)MIRBSD KSH R41 2012/12/21
+	@(#)MIRBSD KSH R41 2012/12/27
 description:
 	Check version of shell.
 stdin:
@@ -38,7 +38,7 @@ name: KSH_VERSION
 category: shell:legacy-no
 ---
 expected-stdout:
-	@(#)LEGACY KSH R41 2012/12/21
+	@(#)LEGACY KSH R41 2012/12/27
 description:
 	Check version of legacy shell.
 stdin:

edit.c

@@ -28,7 +28,7 @@
 
 #ifndef MKSH_NO_CMDLINE_EDITING
 
-__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.259 2012/12/08 18:30:27 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/edit.c,v 1.260 2012/12/28 02:28:33 tg Exp $");
 
 /*
  * in later versions we might use libtermcap for this, but since external

funcs.c

@@ -38,7 +38,7 @@
 #endif
 #endif
 
-__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.235 2012/12/17 23:18:04 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/funcs.c,v 1.236 2012/12/28 02:28:34 tg Exp $");
 
 #if HAVE_KILLPG
 /*

histrap.c

@@ -27,7 +27,7 @@
 #include <sys/file.h>
 #endif
 
-__RCSID("$MirOS: src/bin/mksh/histrap.c,v 1.130 2012/12/17 23:18:05 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/histrap.c,v 1.131 2012/12/28 02:28:35 tg Exp $");
 
 Trap sigtraps[NSIG + 1];
 static struct sigaction Sigact_ign;
@@ -961,6 +961,12 @@ static const struct mksh_sigpair {
 };
 #endif
 
+#if HAVE_SYS_SIGLIST
+#if !HAVE_SYS_SIGLIST_DECL
+extern const char * const sys_siglist[];
+#endif
+#endif
+
 void
 inittraps(void)
 {

jobs.c

@@ -22,7 +22,7 @@
 
 #include "sh.h"
 
-__RCSID("$MirOS: src/bin/mksh/jobs.c,v 1.93 2012/12/17 23:18:06 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/jobs.c,v 1.94 2012/12/28 02:28:36 tg Exp $");
 
 #if HAVE_KILLPG
 #define mksh_killpg		killpg

sh.h

@@ -164,9 +164,9 @@
 #endif
 
 #ifdef EXTERN
-__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.621 2012/12/22 22:15:21 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/sh.h,v 1.622 2012/12/28 02:28:37 tg Exp $");
 #endif
-#define MKSH_VERSION "R41 2012/12/21"
+#define MKSH_VERSION "R41 2012/12/27"
 
 /* arithmetic types: C implementation */
 #if !HAVE_CAN_INTTYPES
@@ -379,10 +379,6 @@ extern const char *cstrerror(int);
 size_t strlcpy(char *, const char *, size_t);
 #endif
 
-#if !HAVE_SYS_SIGLIST_DECL
-extern const char *const sys_siglist[];
-#endif
-
 #ifdef __INTERIX
 /* XXX imake style */
 #define makedev mkdev

shf.c

@@ -24,7 +24,7 @@
 
 #include "sh.h"
 
-__RCSID("$MirOS: src/bin/mksh/shf.c,v 1.53 2012/12/17 23:18:11 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/shf.c,v 1.54 2012/12/28 02:28:39 tg Exp $");
 
 /* flags to shf_emptybuf() */
 #define EB_READSW	0x01	/* about to switch to reading */
@@ -1087,12 +1087,14 @@ cstrerror(int errnum)
 #define strerror dontuse_strerror /* poisoned */
 }
 #elif !HAVE_STRERROR
+
 #if HAVE_SYS_ERRLIST
 #if !HAVE_SYS_ERRLIST_DECL
 extern int sys_nerr;
-extern char *sys_errlist[];
+extern const char * const sys_errlist[];
 #endif
 #endif
+
 const char *
 cstrerror(int errnum)
 {

syn.c

@@ -23,7 +23,7 @@
 
 #include "sh.h"
 
-__RCSID("$MirOS: src/bin/mksh/syn.c,v 1.87 2012/12/05 19:38:25 tg Exp $");
+__RCSID("$MirOS: src/bin/mksh/syn.c,v 1.88 2012/12/28 02:28:39 tg Exp $");
 
 struct nesting_state {
 	int start_token;	/* token than began nesting (eg, FOR) */