PR libstdc++/28125
	* acinclude.m4 (GLIBCXX_CHECK_ICONV_SUPPORT): Remove link test, ie
	AC_CHECK_LIB for libiconv. Instead, use bits of AM_ICONV.
        * configure: Regenerate.
        * scripts/testsuite_flags.in (cxxldflags): Add LIBICONV bits.



git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@119749 138bc75d-0d04-0410-961f-82ee72b054a4