@echo off

Rem

Rem WARNING WARNING WARNING: This file needs to have DOS CRLF end-of-line

Rem format, or else stock DOS/Windows shells will refuse to run it.

Rem

Rem This batch file unpacks the GDB distribution while simultaneously

Rem renaming some of the files whose names are invalid on DOS or conflict

Rem with other file names after truncation to DOS 8+3 namespace.

Rem

Rem Invoke like this:

Rem

Rem     djunpack gdb-XYZ.tar

Rem

Rem where XYZ is the version number.  If the argument includes leading

Rem directories, it MUST use backslashes, not forward slashes.

Rem

Rem The following 2 lines need to be changed with each new GDB release, to

Rem be identical to the name of the top-level directory where the GDB

Rem distribution unpacks itself.

set GDBVER=$package-8.2

if "%GDBVER%"=="$package-8.2" GoTo EnvOk

Rem If their environment space is too small, re-exec with a larger one

command.com /e:4096 /c %0 %1

GoTo End

:EnvOk

if not exist %1 GoTo NoArchive

djtar -x -p -o %GDBVER%/gdb/config/djgpp/fnchange.lst %1 > fnchange.tmp

Rem The following uses a feature of COPY whereby it does not copy

Rem empty files.  We need that because the previous line will create

Rem an empty fnchange.tmp even if the command failed for some reason.

copy fnchange.tmp junk.tmp > nul

if not exist junk.tmp GoTo NoDjTar

del junk.tmp

sed -e "s,@V@,%GDBVER%,g" < fnchange.tmp > fnchange.lst

Rem See the comment above about the reason for using COPY.

copy fnchange.lst junk.tmp > nul

if not exist junk.tmp GoTo NoSed

del junk.tmp

djtar -x -n fnchange.lst %1

GoTo End

:NoSed

echo FAIL: Sed is not available.

GoTo End

:NoDjTar

echo FAIL: DJTAR is not available or no fnchange.lst file in %1.

GoTo End

:NoArchive

echo FAIL: the file %1 does not seem to exist.

echo Remember that %1 cannot use forward slashes, only backslashes.

GoTo End

:End

set GDBVER=