[Bug libgcj/35367] Linux x86 build (with --enable-targets=all, so also building with cross-to-x64 multilib configuration) fails in libjava (prims.cc)

[belyshev at depni dot sinp.msu.ru]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35367

--- Comment #3 from Serge Belyshev <belyshev at depni dot sinp.msu.ru> 2011-10-29 06:55:58 UTC ---
Created attachment 25657
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25657
taken from debian's config-ml.diff

Similar bug in libffi (misdetection of target when using --enable-targets=all)
produces lots of failures in libgo and libffi testsuite.

Both issues are fixed with the attached hack, which is present in debian's set
of patches.

With this hack current trunk passess bootstrap with --enable-targets=all
--enable-languages=all,obj-c++,go  and regtest with
RUNTESTFLAGS="--target_board 'unix{,-m64}'" just fine on i686.