Bugzilla Bug 8491

Hi

It would be interesting to have a gcc-2.95 ebuild that would install after
gcc-3.2 and would not overwrite some files (like /usr/bin/gcc) with its version
but keep it with a prefix (/usr/bin/gcc-2.95)

Actually, gcc-3.2 does that if installed after gcc-2.95, but gcc-2.95 does not. 

Cheers, BB

I have reworked the gcc-2.95 ebuild to coexist with gcc 3.2. It is largely
derived from the gcc-3.2 ebuild. There was one problem I ran into. gcc-2.95
cannot build with the gcc 3.2 -march and -mcpu options. I sedded these out with
the gcc-2.95 equivalents by grabbing the first part of the CHOST variable.
Theoretically, this should work for all the platforms. I'm not sure though. If
it doesn't, I can include a lookup table that maps gcc-3.2 to gcc-2.95.3 options

Also, the --program-suffix option to the autoconf script does not seem to work.
I found a patch to fix this. I figured it wasn't worth applying it though. I
just appended the -2.95 suffix to the executables at the end of src_install.
There were a few other minor things I did that I'd be glad to discuss.

I tested this on two p3 boxes, one with gentoo 1.2 and the other with gentoo
1.4. I welcome feedback, complaints, etc. The ebuild could definitely use more
testing...

Created an attachment (id=4808) [details]
the ebuild

This ebuild worked great for me.  I am now able to compile my nonported code 
using gcc-2.95.  I have not encountered any issues with my gcc3.  

One change I would recommend is sedding out for additional gcc 3.2 CFLAGS 
settings, I had to alter my make.conf to remove -mmmx and -m3dnow.  

The ebuild attachment from Sindian worked well for me.  I was able to compile 
my (gcc-3.2 unfriendly) code without any issues.  My gcc-3.2 compiler still 
functions normally (I have emerged a few updates and they compiled on gcc-3.2 
without incident).

IMHO, this would be a great add-on for the 1.4 release.

Sorry for this delayed response, but we are working on a improved multi-version
scheme for gcc .. thus ill only get to this when that is finalized.

Well, I guess my ebuild is obsolete then. Azarah, let me know if I can help
with
the new multi-gcc scheme.

Arun

I wont say that.  I am sure many users are grateful for this ebuild here.
Will let you know ... although it will need some portage side changes,
so could take some time.

Should be fixed with gcc-2.95.3-r8, if used along with gcc-3.2-r5 or
gcc-3.2.1-r5.

Azarah,

This bug can probably be closed now.

Arun

Fixed by gcc-2.95.3-r8.