2008-11-13  Thomas Schwinge  <tschwinge@gnu.org>

	PR target/28102
	* config.gcc (*-*-gnu*): Move Alpha parts into the `alpha*-*-gnu*', x86
	parts into the `i[34567]86-*-linux*' and parts that are independent of
	the processor architecture into the `*-*-linux*' cases.
	(*-*-linux*): Consider `linux.opt' only for Linux-based configurations.
	* config/i386/gnu.h (GLIBC_DYNAMIC_LINKER): Redefine.
	(TARGET_OS_CPP_BUILTINS, LINK_SPEC): Don't redefine.
	[TARGET_LIBC_PROVIDES_SSP] (TARGET_THREAD_SSP_OFFSET): Undefine.
	* config/gnu.h (NO_IMPLICIT_EXTERN_C): Don't redefine.
	(HURD_TARGET_OS_CPP_BUILTINS): Don't define, but instead...
	(LINUX_TARGET_OS_CPP_BUILTINS): Redefine.

From-SVN: r141838