Hi, Following the suggestion at https://gcc.gnu.org/install/finalinstall.html I report a successful build of GCC 5.5.0 on x86_64-unknown-linux-gnu.
mkunz@pc028:/Net/Groups/BSY/people/mkunz/repositories/gcc5Build/bin> ../../gcc5/config.guess x86_64-unknown-linux-gnu mkunz@pc028:/Net/Groups/BSY/people/mkunz/repositories/gcc5Build/bin> ./gcc -v Using built-in specs. COLLECT_GCC=./gcc COLLECT_LTO_WRAPPER=/Net/Groups/BSY/people/mkunz/repositories/gcc5Build/libexec/gcc/x86_64-unknown-linux-gnu/5.5.0/lto-wrapper Target: x86_64-unknown-linux-gnu Configured with: ../gcc5/configure --prefix=/Net/Groups/BSY/people/mkunz/repositories/gcc5Build Thread model: posix gcc version 5.5.0 (GCC) Set of languages built: default mkunz@pc028:/Net/Groups/BSY/people/mkunz/repositories/gcc5Build/bin> cat /etc/issue Welcome to SUSE Linux Enterprise Server 11 SP3 (x86_64) - Kernel \r (\l). mkunz@pc028:/Net/Groups/BSY/people/mkunz/repositories/gcc5Build/bin> uname -a Linux pc028 3.0.101-0.47.71-default #1 SMP Thu Nov 12 12:22:22 UTC 2015 (b5b212e) x86_64 x86_64 x86_64 GNU/Linux mkunz@pc028:/Net/Groups/BSY/people/mkunz/repositories/gcc5Build/bin> rpm -q glibc glibc-2.11.3-17.95.2 All the building went smoothly on the first attempt. Thanks for GCC and the helpful installation guide at https://gcc.gnu.org/install/index.html ! Cheers, Martin -- Martin Kunz Field Experiments and Instrumentation Max Planck Institute for Biogeochemistry Hans-Knöll-Str. 10, 07745 Jena, Germany Postal Address: P.O. Box 100164, 07745 Jena, Germany Phone: +49-3641-576314 www.bgc-jena.mpg.de