Mail Archives: djgpp/1998/02/09/15:33:18
Peter Palotas <blizzar AT hem1 DOT passagen DOT se> writes:
> How are things going with the porting of GCC 2.8.0? (Or are there newer
> versions by now?)
I have tried to add support for DJGPP into gcc2.8.0. As I have no time
now to improve or test it, I decided to provide current information for
others.
URLs:
http://www.inp.nsk.su/~bukinm/gcc280/diffs.gz
http://www.inp.nsk.su/~bukinm/gcc280/djgpp.gz
First one is diffs from original gcc2.8.0.
Second one contains some information on my djgpp.env (might be useful).
There are no instructions, so I'll give them here:
I used win95 with LFN=y, it might not work with DOS.
Start bash (everything else is in bash):
> djtarx gcc-2.8.0.tar.gz
> cd gcc-2.8.0
> patch -p1 < ../diffs
> CONFIG_SHELL=bash ./configure
It should choose `i386-pc-msdosdjgpp' target.
Edit djgpp.env and add section for xgcc (to use xgcc for building).
> make CFLAGS=-O2 LANGUAGES="c c++ objc"
Copy resulting executables and libraries to their places (if there
are any executables and libraries). gcc.exe, cc1*.exe, cpp.exe, g++.exe,
libgcc.a, libobjc.a, objc/some-of.h (what else?).
Instead of editing djgpp.env and adding [xgcc] section, you can try this:
> make CFLAGS=-O2 LANGUAGES=c GCC_FOR_TARGET=gcc
But using it this way, I think it won't build c++ and/or objective-c
(and I'm not sure if it is `GCC_FOR_TARGET' or other option).
Notes:
I have tried C and C++ with little test programs and had no problems
(but tests were small and I have not used exceptions, rtti... for C++).
It seems that ObjC is not working. It compiles simple program, but
when executing hello-world with ObjC, it says "assertion failed. Abort!".
Built-in specs is correct (I think), but it has no specialized `link_command'
section, so gcc does not call stubify explicitely, though it produces
stubbed exe anyway. Probably it can be changed by setting EXTRA_SPECS
(or SUBTARGET_EXTRA_SPECS) in config/i386/djgpp.h, but I haven't tried it
and I don't like that idea.
BTW, the idea of making this port was to get easy to build cross-compiler
(something->djgpp), but I have not tried to built it as cross-compiler yet.
I hope it will help to add DJGPP support for gcc 2.8.x.
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