* config/sparc/sol2-64.h (TARGET_DEFAULT): Remove.
	(TARGET_64BIT_DEFAULT): Define.
	* config.gcc (sparc*-*-solaris2*): Move sparc/sol2-64.h to front
	of tm_file.
	* config/sparc/sol2.h [TARGET_64BIT_DEFAULT] (TARGET_DEFAULT): Define.

From-SVN: r175593