Interix resurrection

Interix resurrection

2012-01-22  Douglas B Rupp  <rupp@gnat.com>

	* <toplevel>/config/mh-interix: Remove as unneeded.
	* <toplevel>/config/picflag.m4 (i[[34567]]86-*-interix3*):
	Change triplet to i[[34567]]86-*-interix[[3-9]]*.

	* <toplevel>/configure.ac: Remove reference to mh-interix.
	* <toplevel>/configure: Regenerate.

	* <toplevel>/libada/configure: Regenerate.

	* <toplevel>libgcc/config.host (i[34567]86-*-interix3*):
	Change triplet to i[34567]86-*-interix[3-9]*.
	* <toplevel>/libgcc/configure: Regenerate.

	* <toplevel>/liberty/configure: Regenerate.

	* config.gcc: (i[34567]86-*-interix3*): Remove from obsolete
	configurations. Change triplet to i[34567]86-*-interix[3-9]*.
	(extra_options) interix.opt -> i386/interix.opt"
	(extra_objs):Add winnt-stubs.o
	* configure.ac: Add interix to target_os .comm on PE check.
	* configure: Regenerate.
	* config/interix3.h: Delete and move bits to..
	* config/interix.h: Delete and move bits to..
	* config/i386/i386-interix3.h: Delete and move bits to..
	* config/i386/i386-interix.h: ..here.
	(TARGET_CPU_DEFAULT): Remove redefinition.
	(TARGET_ASM_CONSTRUCTOR): Undefine.
	(SUBTARGET_SWITCHES): Define for ms-bitfields.
	(TARGET_OS_CPP_BUILTINS): Remove __OPENNT. Add __declspec.
	(PTRDIFF_TYPE): Define.
	(LONG_DOUBLE_TYPE_SIZE): Define.
	(LIBGCC2_LONG_DOUBLE_TYPE_SIZE): Define.
	(SUBTARGET_OVERRIDE_OPTIONS): Remove.
	(TARGET_SECTION_TYPE_FLAGS): Define.
	(ASM_DECLARE_FUNCTION_NAME): Define.
	(ASM_OUTPUT_EXTERNAL): Define.
	(ASM_OUTPUT_EXTERNAL_LIBCALL): Define.
	(ASM_OUTPUT_ALIGNED_BSS): Define.
	(PCC_BITFIELD_TYPE_MATTERS): Define.
	(USE_CONST_SECTION): Define.
	(SUBTARGET_ENCODE_SECTION_INFO): Remove.
	(TARGET_ASM_FUNCTION_RODATA_SECTION): Remove.
	(SUPPORTS_ONE_ONLY): Remove.
	(I386_PE_STRIP_ENCODING): Define.
	* config/interix.opt: Delete and move bits to..
	* config/i386/interix.opt: ..here. New.
	(mpe-aligned-commons): Add.
	* config/i386/t-interix: Add copyright header.
	(winnt-stubs.o): Add rule.

	* testsuite/gcc.dg/builtins-config.h: (HAVE_C99_RUNTIME):
	Do not define for Interix.

From-SVN: r183406