* config.gcc (sparc-*-linux*): Add sparc/t-linux to tmake_file.
	(sparc64-*-linux*): Likewise.
	* config/sparc/t-linux64 (SHLIB_MAPFILES): Removed.
	* config/sparc/t-linux: New file.
	* config/sparc/libgcc-sparc-glibc.ver (__fixtfdi, __fixunstfdi,
	__floatditf): Export at GCC_LDBL_3.0 if -m32 -mlong-double-128.
	(__divtc3, __multc3, __powitf2): Export at GCC_LDBL_4.0.0 if
	-m32 -mlong-double-128.

	* config.gcc (alpha*-*-linux*): Add alpha/t-linux to tmake_file.
	* config/alpha/t-linux: New file.
	* config/alpha/libgcc-alpha-ldbl.ver: New file.

	* config/sparc/linux.h (TARGET_OS_CPP_BUILTINS): Define
	__LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128.
	(CPP_SUBTARGET_SPEC): Don't add -D__LONG_DOUBLE_128__ here.
	* config/sparc/linux64.h (TARGET_OS_CPP_BUILTINS): Define
	__LONG_DOUBLE_128__ if TARGET_LONG_DOUBLE_128 and TARGET_ARCH32.
	(CPP_ARCH32_SPEC): Remove.

From-SVN: r110741