[gentoo-embedded] uclibc-ng upgrade

[Dave Flogeras]

Hi all,

I have cross armv6j-hardfloat-linux-uclibceabi chroot that I use to create
binary packages for a raspberry pi.  Typically, I use a qemu wrapper to
access the chroot and update the system, then the real hardware pulls the
binaries from there and life is good.

I finally pulled off the band-aid of updating to uclibc-ng.  Other than a
little surface trouble (my own fault) following the guide worked well, and
I now have a fully up to date sysroot.

Now another use case I have, is that I use a cross toolchain that I've
created with crossdev to build a bunch of software projects against the arm
sysroot.  I build and run the unit tests (via qemu) regularly as part of a
regression system.

I updated my cross environment to use
cross-armv6j-hardfloat-linux-uclibceabi/uclibc-ng (using a similar process
as explained in the uclibc-ng upgrade guide).  However, now I cannot build
the cross gcc against uclibc-ng.  It gets so far (to libgomp) then fails in
a conftest, with an error of "ld: cannot find crti.o: No such file or
directory".  crti.o and crt1.o and crtn.o are all present in
/usr/armv6j-hardfloat-linux-uclibceabi/usr/lib, and owned by
cross-x-y-z/uclibc-ng.  Not sure how to proceed.  I can build cross gcc if
I set USE="", ie. building JUST a C compiler, no
fortran/cpp/openmp/nls/nptl.

Any insight would be great.  Do I need to patch gcc?  Is there a uclibc-ng
overlay like there is for musl that I cannot find?

Thanks,
Dave