Buildworld with ccache fails

[Sevan / Venture37]

Hi,
I noticed that back in April changes had been commited to allow ccache
to build -HEAD world so give it a try again on r256380.
The build process now fails at building libc.so.7 with error
/usr/bin/ld: this linker was not configured to use sysroots
cc: error: linker command failed with exit code 1 (use -v to see invocation)


Sevan / Venture37