* configure.host (HOSTING_LIBS): Define for hppa*-*-linux*.

	* configure.host (HOSTING_LIBS): Define for hppa*-*-linux*.
	* ld-elfvsb/elfvsb.exp: xfail non-pic shared library tests for
	non 64-bit hppa*-*-linux* targets.
	* ld-elfvsb/main.c (main_visibility_check): Cast value returned by
	visibility_funptr () to a function pointer.
	* ld-shared/shared.exp: xfail shared (non PIC), shared (non PIC, load
	offset), and shared (PIC main, non PIC so) tests for non 64-bit
	hppa*-*-linux* targets.