* configure.ac: Do not check for gconv.h.
	* crossconfig.m4 (GLIBCXX_CROSSCONFIG): Do not test for gconv.h or
	gconf.h.  For glibc and uClibc systems, define
	_GLIBCXX_USE_RANDOM_TR1 and HAVE_MMAP and use AC_LC_MESSAGES and
	AM_ICONV.
	* configure, config.h.in: Regenerate.

From-SVN: r136494