Re: default cflags to compile

[Nuno Lopes <ncpl at mega dot ist dot utl dot pt>]

> > I need to generate a gcc binary that will always enable the
> > -fabi-version=1, because I have a library built with gcc 3.3 and I
> > need to link with it, but I would like to use gcc 4.
>
> The libstdc++ ABI broke between these releases, so unless your library
> doesn't use libstdc++ at all (somewhat unlikely), there is little point
> to this.q

The problem is that we are using a closed-source library from Sony (for 
their robots AIBO, which run on a MIPS) and they don't support anything 
other than gcc 3.3.

If the library uses libstdc++, does it help if I compile it with 
-fabi-version? I have added that option to the environment of the build 
script.

> > Is there a simple way to do this (a configure option,..) ? or do I
> > need to patch the gcc/c-cppbuiltin.c file to always define
> > _GXX_ABI_VERSION as 102?
>
> The latter, as far as I know.

OK, I'll add that patch to our patchset.

Nuno