libg++272 cannot be built from source on i386

[Matthias Klose <doko@cs.tu-berlin.de>]

Trying to build libg++272 with a g++272 built on a glibc-2.1 based
i386 system ...

Configuring in ./libio
WARNING: This libg++ is not thead safe with the GNU C
	library 2 and less efficient. Please get libg++ 2.8.x!
WARNING: The vtable thunks is enabled in your GNU C++
	compiler. The resulting shared libg++ libraries are
	not binary compatible with other libg++ 2.7.x for
	glibc 2. Please disable vtable thunks in your GNU C++
	compiler!
WARNING: Your GNU C library 2 does not support vtable
	thunks, which may not be 100% compatible with the
	future libg++. Please update your GNU C library for
	the vtable thunks support!

and then ...

	g++272 -c -O2 -g -D_REENTRANT -fno-implicit-templates -D_IO_USE_DTOA -D_IO_USE_LIBC -I. -I../../libio -nostdinc++ -fpic ../../libio/builtinbuf.cc -o pic/builtinbuf.o
cc1plus: Invalid option `-fno-implicit-templates'
make[2]: *** [builtinbuf.o] Error 1