ChangeLog:

PR libgcj/44341
* configure.ac: Discard --with-* flags for host when configuring
target libraries for cross build.
* configure: Rebuilt.
gcc/ChangeLog:
PR libgcj/44341
* doc/install.texi: Document host options discarded when cross
configuring target libraries.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@169430 138bc75d-0d04-0410-961f-82ee72b054a4