* configure.in (toplevel_srcdir, auxdir): Set. * acinclude.m4 (glibcpp_basedir): Set based on auxdir. * aclocal.m4, configure, Makefile.in: Rebuilt. * libio/Makefile.in, math/Makefile.in, src/Makefile.in: Likewise. * libsupc++-v3/Makefile.am (INCLUDES): Use toplevel_srcdir. * libsupc++-v3/Makefile.in: Rebuilt. * libsupc++-v3/configure.in, libsupc++-v3/configure: Removed. * libsupc++-v3/aclocal.m4, libsupc++-v3/config.h.in: Likewise. From-SVN: r39395
