Remove support for DJGPP < 2.02

This also removes some specially-licensed files and lots of accompanying
explanation.

1 files changed, 15 insertions, 27 deletions

diff --git a/msdos/INSTALL b/msdos/INSTALL
index de950b89def..1521a5078a4 100644
--- a/msdos/INSTALL
+++ b/msdos/INSTALL
@@ -11,12 +11,13 @@ Building on plain MS-DOS is supported only if long file names are
 supported (e.g., with a specialized driver such as doslfn).
 
 To build and install the DJGPP port, you need to have the DJGPP ports
-of GCC (the GNU C compiler), GNU Make, rm, mv, cp, and sed.  See the
-remarks in CONFIG.BAT for more information about locations and
-versions.  The Emacs FAQ (see info/efaq.info) includes pointers to
-Internet sites where you can find the necessary utilities; search for
-"MS-DOS".  The configuration step (see below) will test for these
-utilities and will refuse to continue if any of them isn't found.
+of GCC (the GNU C compiler), GNU Make, rm, mv, cp, and sed, and
+version 2.03 or later of DJGPP itself.  See the remarks in CONFIG.BAT
+for more information about locations and versions.  The Emacs FAQ (see
+info/efaq.info) includes pointers to Internet sites where you can find
+the necessary utilities; search for "MS-DOS".  The configuration step
+(see below) will test for these utilities and will refuse to continue
+if any of them isn't found.
 
 Bootstrapping Emacs or recompiling Lisp files in the `lisp'
 subdirectory using the various targets in the lisp/Makefile file
@@ -28,14 +29,13 @@ are distributed in byte-compiled form as well.  As for bootstrapping
 itself, you will only need that if you check-out development sources
 from the Emacs source repository.
 
-Building the DJGPP version of Emacs is currently supported only on
-systems which support long file names (e.g. Windows 9X or Windows XP).
-You need to unpack Emacs distribution in a way that doesn't truncate
-the original long filenames to the DOS 8.3 namespace; the easiest way
-to do this is to use djtar program which comes with DJGPP, since it
-will behave consistently with the rest of DJGPP tools.  Do _not_
-disable the DJGPP long-file-name support (a.k.a. "LFN") while building
-Emacs.
+Building the DJGPP version of Emacs is supported only on systems which
+support long file names (e.g. Windows 9X or Windows XP).  You need to
+unpack Emacs distribution in a way that doesn't truncate the original
+long filenames to the DOS 8.3 namespace; the easiest way to do this is
+to use djtar program which comes with DJGPP, since it will behave
+consistently with the rest of DJGPP tools.  Do _not_ disable the DJGPP
+long-file-name support (a.k.a. "LFN") while building Emacs.
 
 (By the time you read this, you have already unpacked the Emacs
 distribution, but if the explanations above imply that you should have
@@ -68,13 +68,7 @@ type these commands:
 
 Running "config msdos" checks for several programs that are required
 to configure and build Emacs; if one of those programs is not found,
-CONFIG.BAT stops and prints an error message.  If you have DJGPP
-version 2.0 or 2.01, it will complain about a program called
-DJECHO.EXE.  These old versions of DJGPP shipped that program under
-the name ECHO.EXE, so you can simply copy ECHO.EXE to DJECHO.EXE and
-rerun CONFIG.BAT.  If you have neither ECHO.EXE nor DJECHO.EXE, you
-should be able to find them in your djdevNNN.zip archive (where NNN is
-the DJGPP version number).
+CONFIG.BAT stops and prints an error message.
 
 On Windows NT and Windows 2000/XP/Vista/7, running "config msdos"
 might print an error message like "VDM has been already loaded".  This
@@ -143,12 +137,6 @@ multitasking do not work in the DJGPP port.  Synchronous subprocesses
 do work, so features such as compilation, grep, and Ispell run
 synchronously, unlike on other platforms.
 
-Version 2.0 of djgpp has two bugs that affect Emacs.  We've included
-corrected versions of two files from djgpp in the msdos subdirectory:
-is_exec.c and sigaction.c.  To work around the bugs, compile these
-files and link them into temacs.  Djgpp versions 2.01 and later have
-these bugs fixed, so upgrade if you can before building Emacs.
-
 
 This file is part of GNU Emacs.