Problem running source builder

[Simon Williams]

I am having problems building the arm tool set.  I built the tools
successfully on January 9, so something has gone wrong in the last 12
days!  This appears to  be the pertinent part of the log:-

Running configure in multilib subdir thumb/cortex-m7/fpv5-d16/hard
pwd:
/home/simon.williams/rtems/rtems-source-builder/rtems/build/arm-rtems4.12-gcc-6-20160117-newlib-2.3.0.20160104-x86_64-linux-gnu-1/build/arm-rtems4.12
mkdir thumb/cortex-m7
mkdir thumb/cortex-m7/fpv5-d16
mkdir thumb/cortex-m7/fpv5-d16/hard
configure: creating cache ./config.cache
checking build system type... x86_64-pc-linux-gnu
checking host system type... arm-unknown-rtems4.12
checking for --enable-version-specific-runtime-libs... yes
checking for a BSD-compatible install... /usr/bin/install -c
checking for gawk... gawk
checking for arm-rtems4.12-ar...
/home/simon.williams/rtems/4.12/arm-rtems4.12/bin/ar
checking for arm-rtems4.12-lipo... arm-rtems4.12-lipo
checking for arm-rtems4.12-nm...
/home/simon.williams/rtems/rtems-source-builder/rtems/build/arm-rtems4.12-gcc-6-20160117-newlib-2.3.0.20160104-x86_64-linux-gnu-1/build/./gcc/nm
checking for arm-rtems4.12-ranlib...
/home/simon.williams/rtems/4.12/arm-rtems4.12/bin/ranlib
checking for arm-rtems4.12-strip...
/home/simon.williams/rtems/4.12/arm-rtems4.12/bin/strip
checking whether ln -s works... yes
checking for arm-rtems4.12-gcc...
/home/simon.williams/rtems/rtems-source-builder/rtems/build/arm-rtems4.12-gcc-6-20160117-newlib-2.3.0.20160104-x86_64-linux-gnu-1/build/./gcc/xgcc
-B/home/simon.williams/rtems/rtems-source-builder/rtems/build/arm-rtems4.12-gcc-6-20160117-newlib-2.3.0.20160104-x86_64-linux-gnu-1/build/./gcc/
-nostdinc
-B/home/simon.williams/rtems/rtems-source-builder/rtems/build/arm-rtems4.12-gcc-6-20160117-newlib-2.3.0.20160104-x86_64-linux-gnu-1/build/arm-rtems4.12/thumb/cortex-m7/fpv5-d16/hard/newlib/
-isystem
/home/simon.williams/rtems/rtems-source-builder/rtems/build/arm-rtems4.12-gcc-6-20160117-newlib-2.3.0.20160104-x86_64-linux-gnu-1/build/arm-rtems4.12/thumb/cortex-m7/fpv5-d16/hard/newlib/targ-include
-isystem
/home/simon.williams/rtems/rtems-source-builder/rtems/build/arm-rtems4.12-gcc-6-20160117-newlib-2.3.0.20160104-x86_64-linux-gnu-1/gcc-6-20160117/newlib/libc/include
-B/home/simon.williams/rtems/4.12/arm-rtems4.12/bin/
-B/home/simon.williams/rtems/4.12/arm-rtems4.12/lib/ -isystem
/home/simon.williams/rtems/4.12/arm-rtems4.12/include -isystem
/home/simon.williams/rtems/4.12/arm-rtems4.12/sys-include  -mthumb
-mcpu=cortex-m7 -mfpu=fpv5-d16 -mfloat-abi=hard
configure: error: in
`/home/simon.williams/rtems/rtems-source-builder/rtems/build/arm-rtems4.12-gcc-6-20160117-newlib-2.3.0.20160104-x86_64-linux-gnu-1/build/arm-rtems4.12/thumb/cortex-m7/fpv5-d16/hard/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
make[1]: *** [configure-target-libgcc] Error 1

The build system in Fedora Linux 23 X86_64 and is up to date.  My copy of
the RSB repository os up to date as of tonight.

Any ideas?

Regards

Simon
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