* Makefile.in (dbxout.o): Depend on function.h.
	* collect2.c (is_in_list): Hide unused function.
	* dbxout.c: Include function.h.
	(source_label_number, dbxout_source_line, dbxout_source_file,
	dbxout_function_end, dbxout_begin_function): Wrap/move inside
	macros controlling usage.
	* gcc.c (TARGET_EXECUTABLE_SUFFIX): Undef before defining.
	* output.h (exports_section): Prototype.

From-SVN: r46759