make distclean can not remove intl/config.cache

[Yao Qi]

Make distclean can not remove intl/config.cache and fixincludes/config.cache.

The configure commandline I used in GCC building is
../gcc-dfp-cvs-Aung-10/configure --enable-languages=c --enable-shared 
--enable-threads=posix --enable-checking --with-system-zlib --enable-__cxa_atexit 
-with-cpu=default32 --target=powerpc64-linux --host=powerpc64-linux 
--build=powerpc64-linux --with-as=/home/qiyao/binutils/binutils_build/gas/as-new 
--with-ld=/home/qiyao/binutils/binutils_build/ld/ld-new

I think these two cache files should be removed when make distclean, but I am
not sure about it,  would anyone like to take some look?  Any suggestion and
comments are highly appreciated!

May I code a patch on this?

-- 
Regards, Yao

Yao Qi