* config/sol2.h: New file.
	* config.gcc (i?86-*-solaris2*): Include it before i386/sol2.h.
	(sparc64-wrs-vxworks*): Include it before sparc/sol2.h.
	(sparc-*-chorusos*): Likewise.
	(sparc-*-elf*): Likewise.
	(sparc-*-rtems*, sparc-*-rtemself*): Likewise.
	(sparc64-*-solaris2*, sparcv9-*-solaris2*): Likewise.
	(sparc-hal-solaris2*): Likewise.
	(sparc-*-solaris2*): Likewise.
	(sparclite-*-elf*): Likewise.
	(sparc86x-*-elf*): Likewise.
	(sparc64-*-elf*): Likewise.

	* config/i386/sol2.h (PREFERRED_DEBUGGING_TYPE): Moved to
	config/sol2.h.
	(ASM_SPEC): Override config/sol2.h version for now.
	Removed obsolete GAS_REJECTS_MINUS_S variant.
	(WINT_TYPE, WINT_TYPE_SIZE): Moved to config/sol2.h.
	(HANDLE_PRAGMA_REDEFINE_EXTNAME): Likewise.
	(TARGET_OS_CPP_BUILTINS): Likewise.
	Assert system=unix.
	(CPP_SPEC): Simplified using new CPP_SUBTARGET_SPEC.
	(LIB_SPEC, ENDFILE_SPEC, STARTFILE_SPEC, LINK_SPEC): Moved to
	config/sol2.h.
	(SWITCH_TAKES_ARG, STDC_0_IN_SYSTEM_HEADERS): Likewise.
	(ASM_CPU_SPEC): Define.
	(SUBTARGET_EXTRA_SPECS): Define.

	* config/sparc/sol2-bi.h (LONG_DOUBLE_TYPE_SIZE): Removed, already
	in config/sparc/sol2.h.
	(ASM_SPEC): Moved to config/sol2.h.
	(CPP_CPU_SPEC): Simplified.
	(STARTFILE_SPEC32): Likewise, renamed to STARTFILE_ARCH32_SPEC for
	consistency.
	(STARTFILE_SPEC64): Renamed to STARTFILE_ARCH64_SPEC.
	(STARTFILE_ARCH_SPEC): Use new names STARTFILE_ARCH32_SPEC,
	STARTFILE_ARCH64_SPEC.
	(STARTFILE_SPEC): Moved to config/sol2.h
	(SUBTARGET_EXTRA_SPECS): Add startfile_arch.
	(LINK_ARCH32_SPEC): Moved to config/sol2.h.
	(LINK_ARCH64_SPEC): Simplified.
	(LINK_ARCH_SPEC): Redefined config/sol2.h version for 64-bit support.
	(LINK_SPEC): Moved to config/sol2.h

	* config/sparc/sol2.h (WCHAR_TYPE, WCHAR_TYPE_SIZE): Moved to
	config/sol2.h.
	Use BITS_PER_WORD for size.
	(WINT_TYPE, WINT_TYPE_SIZE): Likewise.
	(HANDLE_PRAGMA_REDEFINE_EXTNAME): Likewise.
	(CPP_PREDEFINES): Removed OS-specific part handled by
	TARGET_OS_CPP_BUILTINS.
	(CPP_SUBTARGET_SPEC): Moved to config/sol2.h.
	(CPLUSPLUS_CPP_SPEC): Removed, handled by TARGET_OS_CPP_BUILTINS.
	(ASM_SPEC): Moved to config/sol2.h.
	(PREFERRED_DEBUGGING_TYPE): Likewise.
	(STARTFILE_SPEC, LIB_SPEC, LINK_SPEC): Likewise.
	(SWITCH_TAKES_ARG, STDC_0_IN_SYSTEM_HEADERS): Likewise.
	(TARGET_DEFAULT): Reordered to match config/sparc/sol2-bi.h version.
	(TRANSFER_FROM_TRAMPOLINE): Moved to config/sol2.h

	* config.gcc (i?86-*-solaris2*): Removed obsolete gas support.
	* config/i386/sol2gas.h: Removed.

From-SVN: r54827