Update to 2.50

Based on PR pkg/42846

Changelog:
CHANGES FROM 2.40 to 2.50
   * Bug fixes
   * New compilation procedure for MVS and CMS

CHANGES FROM 2.30 to 2.40
   * Bug fixes from Bill Chatfield
   * Updated documentation
   * Added support for compiling on CMS (another IBM mainframe OS)

CHANGES FROM 2.20pl2 to 2.30
   * Minor bug fixes, cosmetic improvements and portability improvements
   * Added support for compiling on MVS (IBM mainframe)

Tested on NetBSD/i3865.99.59 and 5.1.

5 files changed, 38 insertions, 52 deletions

diff --git a/lang/bwbasic/patches/patch-aa b/lang/bwbasic/patches/patch-aa
index 6474fcbddb2..51177063f17 100644
--- a/lang/bwbasic/patches/patch-aa
+++ b/lang/bwbasic/patches/patch-aa
@@ -1,8 +1,8 @@
-$NetBSD: patch-aa,v 1.3 2009/03/02 14:27:12 joerg Exp $
+$NetBSD: patch-aa,v 1.4 2012/01/15 15:29:31 ryoon Exp $
 
---- bwbasic-2.20/Makefile.in.orig	Sat Nov 25 14:32:18 1995
-+++ bwbasic-2.20/Makefile.in	Sun Feb  6 16:12:49 2000
-@@ -16,9 +16,10 @@
+--- Makefile.in.orig	2009-06-04 12:50:16.000000000 +0000
++++ Makefile.in
+@@ -16,9 +16,10 @@ INSTALL_DATA = @INSTALL_DATA@
  
  DEFS = @DEFS@
  
diff --git a/lang/bwbasic/patches/patch-ab b/lang/bwbasic/patches/patch-ab
deleted file mode 100644
index a2787303c18..00000000000
--- a/lang/bwbasic/patches/patch-ab
+++ /dev/null
@@ -1,22 +0,0 @@
-$NetBSD: patch-ab,v 1.1 2005/12/30 23:29:36 joerg Exp $
-
---- bwbasic-2.20/bwbasic.c.orig	2005-12-30 23:25:02.000000000 +0000
-+++ bwbasic-2.20/bwbasic.c
-@@ -51,7 +51,7 @@
- char *bwb_ebuf;				/* error buffer */
- static char *read_line;
- int bwb_trace = FALSE;
--FILE *errfdevice = stderr;              /* output device for error messages */
-+FILE *errfdevice;              /* output device for error messages */
- 
- #if HAVE_LONGJUMP
- jmp_buf mark;
-@@ -133,6 +133,8 @@ bwb_init( argc, argv )
-    static char end_buf[] = "\0";
- #endif
- 
-+   errfdevice = stderr;
-+
- #if INTENSIVE_DEBUG
-    prn_xprintf( stderr, "Memory Allocation Statistics:\n" );
-    prn_xprintf( stderr, "----------------------------\n" );
diff --git a/lang/bwbasic/patches/patch-ac b/lang/bwbasic/patches/patch-ac
index e2235228eaf..99334e8928b 100644
--- a/lang/bwbasic/patches/patch-ac
+++ b/lang/bwbasic/patches/patch-ac
@@ -1,7 +1,7 @@
-$NetBSD: patch-ac,v 1.2 2005/11/03 22:19:01 rillig Exp $
+$NetBSD: patch-ac,v 1.3 2012/01/15 15:29:31 ryoon Exp $
 
---- bwbasic-2.20/bwbasic.doc	Tue Oct 12 19:30:12 1993
-+++ bwbasic-2.20/bwbasic.1	Fri Feb 11 22:42:36 2000
+--- bwbasic.doc.orig	2006-10-24 05:40:18.000000000 +0000
++++ bwbasic.doc
 @@ -1,33 +1,10 @@
 -
 -
@@ -43,7 +43,7 @@ $NetBSD: patch-ac,v 1.2 2005/11/03 22:19:01 rillig Exp $
  
     The Bywater BASIC Interpreter (bwBASIC) implements a large
     superset of the ANSI Standard for Minimal BASIC (X3.60-1978)
-@@ -60,7 +37,7 @@
+@@ -60,7 +37,7 @@ CONTENTS:
     offer further shell-processing capabilities.
  
  
@@ -52,7 +52,7 @@ $NetBSD: patch-ac,v 1.2 2005/11/03 22:19:01 rillig Exp $
  
     This version of Bywater BASIC is released under the terms of the 
     GNU General Public License (GPL), which is distributed with this 
-@@ -71,7 +48,7 @@
+@@ -71,7 +48,7 @@ CONTENTS:
     for information on which you should contact the author.
  
  
@@ -61,7 +61,7 @@ $NetBSD: patch-ac,v 1.2 2005/11/03 22:19:01 rillig Exp $
  
     Be aware that many of these commands and functions will not be
     available unless you have set certain flags in the header files
-@@ -199,7 +176,7 @@
+@@ -199,7 +176,7 @@ CONTENTS:
     WRITE [# device-number,] element [, element ]....
     
  
@@ -70,7 +70,7 @@ $NetBSD: patch-ac,v 1.2 2005/11/03 22:19:01 rillig Exp $
  
     4.a. Interactive Environment
  
-@@ -305,7 +282,7 @@
+@@ -305,7 +282,7 @@ CONTENTS:
     aliases to allow Microsoft-style programs to be run.
  
  
@@ -79,7 +79,7 @@ $NetBSD: patch-ac,v 1.2 2005/11/03 22:19:01 rillig Exp $
  
     The "Dependencies" listed in the folowing reference materials
     refers to flags that must be set to TRUE in bwbasic.h for the
-@@ -1636,7 +1613,7 @@
+@@ -1636,7 +1613,7 @@ CONTENTS:
     ------------------------------------------
  
  
@@ -88,7 +88,7 @@ $NetBSD: patch-ac,v 1.2 2005/11/03 22:19:01 rillig Exp $
  
     BWB.EDITOR$
     BWB.FILES$
-@@ -1669,7 +1646,7 @@
+@@ -1669,7 +1646,7 @@ CONTENTS:
     (specifically CLS, LOCATE, and INKEY$) may be available. 
  
  
@@ -97,7 +97,7 @@ $NetBSD: patch-ac,v 1.2 2005/11/03 22:19:01 rillig Exp $
  
     There are some items not implemented that have been so long
     a part of standard BASICs that their absence will seem surprising.
-@@ -1853,7 +1830,7 @@
+@@ -1853,7 +1830,7 @@ CONTENTS:
     ZONEWIDTH
  
  
@@ -106,7 +106,7 @@ $NetBSD: patch-ac,v 1.2 2005/11/03 22:19:01 rillig Exp $
  
     This program was originally begun in 1982 by my grandmother, Mrs.
     Verda Spell of Beaumont, TX.  She was writing the program using
-@@ -1873,9 +1850,3 @@
+@@ -1873,9 +1850,3 @@ CONTENTS:
     bag and eventually managed to have it all copied over to a PC
     diskette. I have revised it slightly prior to this release. You
     should know, though, that I myself am an historian, not a programmer.
diff --git a/lang/bwbasic/patches/patch-ad b/lang/bwbasic/patches/patch-ad
deleted file mode 100644
index a8cef79f814..00000000000
--- a/lang/bwbasic/patches/patch-ad
+++ /dev/null
@@ -1,15 +0,0 @@
-$NetBSD: patch-ad,v 1.1 2011/08/29 06:09:19 dholland Exp $
-
-- fix void main.
-
---- bwbasic-2.20/bwx_tty.c~	2011-08-29 06:01:48.000000000 +0000
-+++ bwbasic-2.20/bwx_tty.c
-@@ -66,7 +66,7 @@ extern jmp_buf mark;
- ***************************************************************/
- 
- #if ANSI_C
--void
-+int
- main( int argc, char **argv )
- #else
- main( argc, argv )
diff --git a/lang/bwbasic/patches/patch-bwbasic.h b/lang/bwbasic/patches/patch-bwbasic.h
new file mode 100644
index 00000000000..80737989f0b
--- /dev/null
+++ b/lang/bwbasic/patches/patch-bwbasic.h
@@ -0,0 +1,23 @@
+$NetBSD: patch-bwbasic.h,v 1.1 2012/01/15 15:29:31 ryoon Exp $
+
+* Suppress redefined messages.
+
+--- bwbasic.h.orig	2009-06-04 12:50:18.000000000 +0000
++++ bwbasic.h
+@@ -111,10 +111,16 @@
+ ***************************************************************/
+ 
+ #ifdef __STDC__
++#ifndef HAVE_RAISE
+ #define HAVE_RAISE TRUE
++#endif
++#ifndef HAVE_STRING
+ #define HAVE_STRING TRUE
++#endif
++#ifndef HAVE_STDLIB
+ #define HAVE_STDLIB TRUE
+ #endif
++#endif
+ 
+ #ifdef __STDC__
+ #define	HAVE_SIGNAL	TRUE