Had a new known issue: ccache will break the build because we're sym-linking to have our own compiler for host and build systems, but that screws up ccache finding the real compiler.
There is no fix, so the only way to inform the users is to document it: remove ccache.

/trunk/docs/known-issues.txt | 25 21 4 0 +++++++++++++++++++++----
1 file changed, 21 insertions(+), 4 deletions(-)

 COPYING