* See iostream/TODO for iostream-specific issues

* Update README.

* Remove math-68881.h.

* Add 'return 0' to end of tests.

* Undo gcc-2.3.2-specific klduge in test-install/bf.cc.

* fix to use ../gcc/xgcc

* Since the libg++ include files in gxx_includedir aren't architecture
  dependent, they belong under $(datadir) not $(libdir).
