(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.
