Freezing core-updates

[ludo@gnu.org (Ludovic Courtès)]

Hello Guix!

I hereby declare ‘core-updates’ frozen!  :-)

That is, we should now work towards fixing the “core” packages, then make
Hydra build everything, fix packages, and finally merge it.  I invite
you all to spend a bit of time on it, it’s fun and profitable.  :-)

Currently, the main problem is a frightening GCC 5.3 build issue on ARM:
<https://hydra.gnu.org/build/1201428/nixlog/1/tail-reload>:

--8<---------------cut here---------------start------------->8---
make[3]: Leaving directory '/tmp/nix-build-gcc-5.3.0.drv-0/build'
Comparing stages 2 and 3
warning: gcc/cc1plus-checksum.o differs
warning: gcc/cc1-checksum.o differs
Bootstrap comparison failure!
gcc/fold-const.o differs
gcc/cp/semantics.o differs
gcc/cp/optimize.o differs
gcc/dwarf2cfi.o differs
gcc/tree-ssa-sccvn.o differs
gcc/real.o differs
gcc/libgcov-driver-tool.o differs
gcc/tree-nested.o differs
gcc/lto-section-out.o differs
gcc/c/c-typeck.o differs
gcc/c/c-parser.o differs
gcc/lto-streamer-out.o differs
gcc/tree-dfa.o differs
gcc/ipa-inline.o differs
gcc/c-family/cilk.o differs
gcc/gcov-dump.o differs
gcc/coverage.o differs
gcc/tree-inline.o differs
gcc/omp-low.o differs
gcc/double-int.o differs
gcc/tree-ssa-math-opts.o differs
gcc/simplify-rtx.o differs
gcc/df-scan.o differs
gcc/tree-switch-conversion.o differs
libiberty/fibheap.o differs
libiberty/simple-object-xcoff.o differs
libiberty/sort.o differs
libiberty/pic/fibheap.o differs
libiberty/pic/simple-object-xcoff.o differs
libiberty/pic/sort.o differs
Makefile:21400: recipe for target 'compare' failed
make[2]: *** [compare] Error 1
--8<---------------cut here---------------end--------------->8---

Can someone with an ARM machine reproduce it?  I wonder if it could be a
hardware failure.

See <https://hydra.gnu.org/jobset/gnu/core-updates> for more.

Ludo’.