Error building GCC trunk on CELL SPU

[Ralf Wildenhues]

Revital1 Eres <ERES <at> il.ibm.com> writes:
> 
>  -O2 ' 'CPPFLAGS=' 'LDFLAGS=' 'build_alias=powerpc64-unknown-linux-gnu'
> 'host_alias=spu' 'target_alias=spu' --cache-file=.././config.cache
> --srcdir=../../../../gcc/newlib/libc
> configure: loading cache .././config.cache
> configure: error: `CFLAGS' has changed since the previous run:
> configure:   former value:  -g -O2
> configure:   current value: -g -O2

> It might be introduced by a recent change to the calculation of
> CFLAGS_FOR_TARGET.
> Deleting config.cache file does not seem to help.

This should help:
  find $top_builddir -name config.cache | xargs rm

or, in this case,
  rm newlib/libc/config.cache

but since you may run into a similar error in other directories, just
use the former, until this issue is fixed.

Cheers,
Ralf