re PR ada/55946 (wrong tools used for build of gnattools [native-cross])

	PR ada/55946
gnattools/
	* Makefile.in (host): Define.
	(host_alias): Likewise.
	(TOOLS_FLAGS_TO_PASS_RE): Add LDFLAGS.
	(GNATMAKE_FOR_HOST): Define.
	(GNATLINK_FOR_HOST): Likewise.
	(GNATBIND_FOR_HOST): Likewise.
	(GNATLS_FOR_HOST): Likewise.
	(RTS_DIR): Move around and use GNATLS_FOR_HOST.
	(TOOLS_FLAGS_TO_PASS_CROSS): Use the other *_HOST variables.
gcc/ada/
	* gcc-interface/Make-lang.in (ada/doctools/xgnatugn): Use gnatmake.
	* gcc-interface/Makefile.in (GCC_LINK): Add LDFLAGS.
	(../../gnatmake): Remove LDFLAGS.
	(../../gnatlink): Likewise.

Co-Authored-By: Iain Sandoe <iain@codesourcery.com>

From-SVN: r205945