dd12c3a890
* configure.in: Switch more things to use maybe dependencies. Rearrange a little. Use GCC_TOPLEV_SUBDIRS. * configure: Regenerate. * Makefile.tpl: Switch more things to use maybe dependencies. * Makefile.in: Regenerate. <config> * config/acx.m4: Introduce _GCC_TOPLEV_NONCANONICAL_BUILD, _GCC_TOPLEV_NONCANOICAL_HOST, _GCC_TOPLEV_NONCANONICAL_TARGET, GCC_TOPLEV_SUBDIRS.