* Makefile.am (DISTCLEANFILES): Change cgen-opc.h to cgen-desc.h.

	* Makefile.am (DISTCLEANFILES): Change cgen-opc.h to cgen-desc.h.
	(cgen.o): Ditto.
	(EXTRA_as_new_SOURCES): Comment out.
	(.tcdep): <arch>-opc.h renamed to <arch>-desc.h.
	* Makefile.in: Rebuild.
	* configure.in: Require autoconf 2.13.  Redo using_cgen handling.
	Delete call to AM_CYGWIN32.  Replace AM_EXEEXT with AC_EXEEXT.
	(AC_OUTPUT): <arch>-opc.h renamed to <arch>-desc.h.
	* configure: Rebuild.
	* aclocal.m4: Rebuild.
	* config.in: Rebuild.
	* cgen.c: Include cgen-desc.h, not cgen-opc.h.
	(*): CGEN_OPCODE_DESC renamed to CGEN_CPU_DESC.
	(gas_cgen_cpu_desc): Renamed from gas_cgen_opcode_desc.
	CGEN_INSN_ATTR renamed to CGEN_INSN_ATTR_VALUE.
	CGEN_OPERAND_ATTR renamed to CGEN_OPERAND_ATTR_VALUE.
	(gas_cgen_record_fixup): Remove unnecessary != 0 test.
	(gas_cgen_record_fixup_exp): Ditto.
	(gas_cgen_finish_insn): Ditto.  Refer to operand table via cpu
	descriptor, not global variable.
	(gas_cgen_md_apply_fix3): Refer to operand_table via cpu
	descriptor, not global variable.  Refer to insert_operand handler
	via cpu descriptor, not global function.
	* cgen.h (*): CGEN_OPCODE_DESC renamed to CGEN_CPU_DESC.
	* config/tc-fr30.c: Include opcodes/fr30-desc.h.
	(*): gas_cgen_opcode_desc renamed to gas_cgen_cpu_desc.
	CGEN_INSN_ATTR renamed to CGEN_INSN_ATTR_VALUE.
	Update call to CGEN_OPERAND_TYPE,CGEN_INSN_OPERANDS.
	* config/tc-m32r.c: Ditto.
	(assemble_two_insns): Update calls to cgen_lookup_get_insn_operands.
	(md_assemble): Ditto.
	(md_convert_frag): Update call to CGEN_OPERAND_ENTRY.