On 21.12.2016 02:53, Jonathan Neuschäfer wrote: > Hi, > > for a while now I've had problems using buildgcc on my Debian system, > which runs Debian testing (aka. stretch or version 9) and GCC 6.2. When > it fails, there is the following error in > util/crossgcc/build-*-elf-GCC/config.log: > > /usr/bin/ld: > /home/jn/dev/coreboot/util/crossgcc/xgcc/lib/libgmp.a(fat_entry.o): > relocation R_X86_64_32S against symbol `__gmpn_cpuvec' can not be used when > making a shared object; recompile with -fPIC
That's known trouble due to their GCC using `-fpie/-pie` by default now. One way to work around is adding `-with-pic` to the configure step when building GMP. We could do that automatically. I guess, there is something in `gcc -dumpspecs` that could be used. Can you provide that output for the failing GCC, please. Nico > > This error only happens when buildgcc uses gcc 6.2. When I select gcc > 4.9, gcc 5.3, clang 3.8, or clang 3.9, like this, buildgcc succeeds[1]: > > CC=gcc-5 CXX=g++-5 make CPUS=3 crossgcc > > > Regards, > Jonathan Neuschäfer > > [1]: You a little patch for buildgcc to accept $CC: > https://review.coreboot.org/#/c/17931/ > > > -- coreboot mailing list: [email protected] https://www.coreboot.org/mailman/listinfo/coreboot
