Comments on: Cross compiling for MS-DOS (DJGPP) from OS X

By: neozeed

neozeed — Wed, 29 Jan 2014 01:51:43 +0000

In reply to Andrew Wu. Nice script! I may have to borrow that for other compilation things in the future!

By: Andrew Wu

Andrew Wu — Tue, 28 Jan 2014 12:29:05 +0000

Hi, I wrote a bash script to build DJGPP on Mac OSX. Maybe you can check it. 😀

https://github.com/andrewwutw/build-djgpp

It builds gcc 4.8.2. Its installation directory is /usr/local/djgpp. Tested on OSX 10.9.1 and 10.8.5.

By: neozeed

neozeed — Sat, 07 Sep 2013 02:49:53 +0000

In reply to Andrew Wu. I just rebuilt binutils from source, using my steps above, and got the same result... Sorry.

By: neozeed

neozeed — Fri, 06 Sep 2013 16:25:13 +0000

In reply to Andrew Wu.

Hmm it’s killing itself…

#0 0x00007fff8df1cd46 in __kill ()
#1 0x00007fff86992ec0 in __abort ()
#2 0x00007fff8695477d in __chk_fail ()
#3 0x00007fff86954958 in __sprintf_chk ()
#4 0x000000010000a3dd in coff_write_armap ()
#5 0x0000000100009b97 in _bfd_compute_and_write_armap ()
#6 0x00000001000092d0 in _bfd_write_archive_contents ()
#7 0x0000000100011e3e in bfd_close ()
#8 0x0000000100004a9d in write_archive ()
#9 0x0000000100005165 in replace_members ()
#10 0x0000000100004325 in main ()

I don’t know offhand beyond this, maybe rebuild the toolchain with the new compiler in 10.8 ..?

By: Andrew Wu

Andrew Wu — Fri, 06 Sep 2013 16:01:52 +0000

The “ar” program in the binary toolchain seems not work?
I tried:

# create an empty file x.c
touch x.c
/usr/local/bin/i586-pc-msdosdjgpp-gcc -o x.o -c x.c
/usr/local/bin/i586-pc-msdosdjgpp-ar cru x.a x.o

will print:

Abort trap: 6

I run it on MacBook Pro Retina, OSX 10.8.4

run uname -a:
Darwin Andrew-MBPR.local 12.4.0 Darwin Kernel Version 12.4.0: Wed May 1 17:57:12 PDT 2013; root:xnu-2050.24.15~1/RELEASE_X86_64 x86_64

By: Neozeed

Neozeed — Sat, 01 Jan 2011 00:20:53 +0000

yeah I find older gcc's easier to deal with.... then again it may very well be me.

Then again my favorite version is 2.5.8 .... lol

what platform are you cross compiling from?

I do have to say, that once it's working it's sooooo worth it, as things build on modern machines vs antiques like MS-DOS... but you can't beat the size of a MS-DOS install!!!!!

By: Pat Villani

Pat Villani — Sat, 01 Jan 2011 00:16:29 +0000

Interesting in that I just tried cross compiling djgpp myself, only two days after your post. I earlier built an i586-elf version and it compiled just fine. Tried djgpp and it bombs with "configure: error: cannot compute suffix of object files: cannot compile" resulting from a config step trying to determoine gcc version.

This was with gcc-4.5.1 and binutils-2.20, so a little different.