(s_comm): Split out code to..
(s_comm_internal): ..here. Tidy error returns. Rearrange so that
"name" from input line may be used in more places. Merge code
testing for valid size from elf_common. Merge code from
s_lcomm_internal. Call comm_parse_extra.
(bss_alloc): New function, split out of s_lcomm_internal and
elf_common.
(parse_align): Likewise.
(s_lcomm_internal): Rewrite.
(s_lcomm, s_lcomm_bytes): Use s_comm_internal.
* read.h (bss_alloc, parse_align, s_comm_internal): Declare.
* config/obj-elf.c (elf_common): Split out code to..
(elf_common_parse): ..here. Remove code common to s_comm_internal,
parse_align and bss_alloc. Rearrange and Tidy.
* config/tc-alpha.h (TC_IMPLICIT_LCOMM_ALIGNMENT): Define.
(get_absolute_expression): ..here.
* read.h (get_absolute_expr): Declare.
* config/obj-elf.c (elf_common): Use offsetT for "temp" and "size".
Trim size to arch bits_per_address, and test for negative input
via get_absolute_expr.
* dwarf2dbg.c: Enabled only if BFD_ASSEMBLER is defined.
* read.h (outputting_stabs_line_debug): Change it to int.
* stabs.c (outputting_stabs_line_debug): Likewise.
(s_desc): Add ATTRIBUTE_UNUSED to args as appropriate.
* read.h (aout_process_stab): Declare.
* configure.in (EMULATIONS) [i386aout, i386coff, i386elf]:
Generalize to *aout, *coff *elf.
* configure: Regenerated.
* doc/internals.texi (Object format backend): Say
SEPARATE_STAB_SECTIONS needs to be nonzero, not just defined.
(dwarf2_gen_line_info): Kill unused variables.
(dwarf2_finish): Likewise.
(dwarf2_where): Likewise.
(dwarf2_directive_file): If we've only got a string,
hand off to s_app_file.
* ecoff.c: Move the include of ecoff.h.
* symbols.h (S_IS_FUNCTION): Prototype.
* read.c (LEX_HASH): Supply a default.
(lex_type): Use it.
(s_globl): Update `c' after skipping whitespace.
* read.h (LEX_END_NAME, is_name_ender): New.
* expr.c (get_symbol_end): Respect it.
