Mail Archives: cygwin/2002/07/12/01:14:19
Christopher Faylor wrote:
> On Fri, Jul 12, 2002 at 12:33:31AM -0400, Charles Wilson wrote:
>
>>'Course, for my cygwin-host, mingw-target cross compiler, I'll need to
>>respin
>>it so that it coexists with the official gcc and gcc2 and gcc-mingw
>>packages...sigh.
>>
>
> Do you need this anymore, though?
Perhaps not. It was really just an experiment: everybody including me
has been claiming that "just build a real cross-compiler; that's 'the
right way to do it'"
so I gave it a shot.
It wasn't as easy as everyone thought. Lots of weirdness (mostly in
directory layout) to make it coexist peacefully with the mingw bits of
cygwin.
> You could get by with this, couldn't
> you:
>
> i686-pc-mingw32-gcc is:
> #!/bin/sh
> gcc -mno-cygwin $(@+"$@"}
Probably.
>
> Or, should I not be coopting the i686-pc-mingw32 target directory?
> Maybe it really should be something like i686-pc-mingw32-cygwin. Bleah.
No, I think you made the right choice. Besides, my cross compiler goes
into /opt/mingw/* -- so no conflict there. Also, if one were to install
mingw itself, it goes into /mingw.
>>Say, where do you change gcc(2.95.3) so that g++-2 links against
>>libstdc++-2.a instead of libstdc++.a? (Ditto g77). It doesn't seem to
>>be in the specs file, so I dunno WHERE that is done...
>>
>
> It is in the last two lines of the specs file:
>
> #define LIBSTDCXX "-lstdc++-2"
> #define FORTRAN_LIBRARY "-lg2c-2"
I'll look for it -- it's not in my "normal" sources, so I guess normal
sources use a default definition from somewhere else. I'll download
your gcc2-src package and use that...
> The files themselves get munged by mknetrel's extra/gcc2 script.
Ah. But if you munge the filenames at install time, then don't stage2
and stage3 break?
> Btw, I moved that libstdc++.a.whatever file out of /usr/lib for the next
> release. Although, actually, if I had just moved it into the
> /usr/i686-pc-cygwin/lib directory, I might not have had to add the -2
> part. Argh. Not going to change it now...
Agreed -- I actually LIKE the -2 distinction.
>
> cgf
> (Who's off for the 4000th rebuild of these packages...)
<groan>
--Chuck
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