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Re: Trouble building gcc-3.2.2/glibc-2.3.2 for cross powerpc-linux


Peter Barada wrote:
I've been pounding my head on the glass tube trying to build
gcc-3.2.2/glibc-2.3.2 for powerpc-linux on my x86 linux machine. ...
unfortunatley I can't give it any headers until after glibc installs
them, but glibc needs a cross compiler.  The classic catch-22....

Peter, I just ran into the problem you describe. I have been updating Bill Gatliff's scripts to support newer toolchains. Yesterday I tried glibc-2.3.2 (had been using glibc-2.2.5). To my horror, it refused to configure without having a cross gcc. Since you have to configure and install-headers for glibc before you can compile the cross gcc, this is indeed a catch-22. I suspect we can fool the configure by the following ruse:

    # glibc-2.3.x requires a cross-compiler even here, so shoot it in the head
    # FIXME need to file a bug report against glibc for this
    mkdir fake-cross
    ln -s `which gcc` fake-cross/${TARGET}-gcc
    PATH=`pwd`/fake-cross:$PATH \
        ${GLIBC_DIR}/configure --host=$TARGET --prefix=/usr \
        --enable-add-ons=linuxthreads --with-headers=${PREFIX}/${TARGET}/include

    PATH=`pwd`/fake-cross:$PATH \
        make cross-compiling=yes install_root=${PREFIX}/${TARGET} prefix="" install-headers

You only do this when building the headers, of course.  For
the real glibc build, you use the real cross-compiler.

I verified this gets us past configure, but haven't finished
a build yet.  Knock on wood.

When I realized what was going on, I did a google search for
"gcc catch-22", and sure enough, up popped your message!
Sorry for my unhelpful reply earlier.
- Dan

--
Dan Kegel
http://www.kegel.com
http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=78045


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