acinclude.m4 (GLIBCPP_CHECK_COMPILER_VERSION): If we can use -fdiagnostics-show-location=once, do so.

2000-05-24  Phil Edwards  <pme@sourceware.cygnus.com>

	* acinclude.m4 (GLIBCPP_CHECK_COMPILER_VERSION):  If we can use
	  -fdiagnostics-show-location=once, do so.  Expand AC_LANG_* to
	  enclose other tests in this macro, including future ones.
	* aclocal.m4:  Regenerate.
	* configure:  Regenerate.

	* docs/faq/index.html:  Update location of libg++ FAQ.
	* docs/faq/index.txt:  Regenerate.

From-SVN: r34137