* libnlm.h (nlm_backend_data): Added nlm_mangle_relocs.

	* libnlm.h (nlm_backend_data): Added nlm_mangle_relocs.
	(nlm_mangle_relocs_func): New macro.
	* nlm32-i386.c (nlm_i386_write_reloc): Rewrote correctly.
	(nlm_i386_mangle_relocs): New function.
	* nlmcode.h (nlm_compute_section_file_positions): Move all common
	symbols into the .bss section.
	(nlm_set_section_contents): Call the mangle_relocs function.
	(nlm_write_object_contents): Treat a reloc against any defined
	symbol as an internal reloc.  Fix bug in external reloc counting.
	Get the offset and debugging type right for .bss symbols.  Only
	output debugging symbols for defined symbols.