Bugzilla Bug 192959

When attempting to cross build binutils for mipsel-softfloat-linux-ulibc, the
compile of chew.c fails.



Reproducible: Always

Steps to Reproduce:
1.Create a cross dev environment for mipsel-softfloat-linux-uclibc
2.In make.conf, set CFLAGS="-Os -march=4kc -pipe"
3.emerge sys-apps/binutils

Actual Results:  
make[4]: Entering directory
`/opt/portage/tmp/portage/sys-devel/binutils-2.17/work/build/bfd/doc'
gcc -o chew.$$
/opt/portage/tmp/portage/sys-devel/binutils-2.17/work/binutils-2.17/bfd/doc/chew.c
\
          -march=4kc -pipe -O2    \
          -I..
-I/opt/portage/tmp/portage/sys-devel/binutils-2.17/work/binutils-2.17/bfd/doc/..
-I/opt/portage/tmp/portage/sys-devel/binutils-2.17/work/binutils-2.17/bfd/doc/../../include
-I/opt/portage/tmp/portage/sys-devel/binutils-2.17/work/binutils-2.17/bfd/doc/../../intl
-I../../intl; \
        /bin/sh
/opt/portage/tmp/portage/sys-devel/binutils-2.17/work/binutils-2.17/bfd/doc/../../move-if-change
chew.$$ chew
/opt/portage/tmp/portage/sys-devel/binutils-2.17/work/binutils-2.17/bfd/doc/chew.c:1:
error: bad value (4kc) for -march= switch
/opt/portage/tmp/portage/sys-devel/binutils-2.17/work/binutils-2.17/bfd/doc/chew.c:1:
error: bad value (4kc) for -mtune= switch



Expected Results:  
mipsel-softfloat-linux-uclibc-gcc should have been used instead of gcc.

sys-apps/setarch, sys-apps/file, sys-python/pycrypto, and
dev-python/python-fchksum all fail in a similar fashion.  Most of the rest of
an "emerge system" builds without problems.

no, the native gcc should have been used ... the host cflags should not have
been used

fixed in 2.17-r2 and 2.18-r1