* i386/sco5.h: Make ELF default file format and add -mcoff/-melf..
        (MULTILIB_DEFAULTS): Define.
        (ASM_SPEC, CPP_SPEC): Handle -mcoff.
        (STARTFILE_SPEC, ENDFILE_SPEC, LINK_SPEC): Likewise.
        (LIBGCC_SPEC): Likewise.
        (MASK_COFF, TARGET_COFF, TARGET_ELF): Define.
        (SUBTARGET_SWITCHES): Add -mcoff and -melf.
        * i386/t-sco5 (CRTSTUFF_T_CFLAGS): Add -fPIC.
        (CRTSTUFF_T_CFLAGS_S): Tweak for COFF.
        (EXTRA_PARTS, TAROUTOPTS): Delete.
        (libgcc1-elf, libgcc2-elf, libgcc-elf targets): Delete.
        (MULTILIB_OPTIONS): Define.
        (MULTILIB_DIRNAMES, MULTILIB_EXCEPTIONS): Likewise.
        (MULTILIB_MATCHE, MULTILIB_EXTRA_OPTS): Likewise.
SCO Open Server patches.

From-SVN: r15627

From-SVN: r15624

        * loop.c (loop_number): Delete function.  Change all references
        to use uid_loop_num array.
        * loop.h (loop_number): Delete declaration.
        * unroll.c (unroll_loop): Change "loop_number" references to
        use uid_loop_num instead.
Still cleaning up haifa.

From-SVN: r15623

        * loop.c (loop_unroll_factor): Move outside #ifdef HAIFA
        conditional.
        (loop_unroll_iter): Remove unused variable and all references.
        (loop_optimize): Always allocate and clear space for loop_unroll_factor.
        (insert_bct): Fix minor formatting problems.
        * loop.h (loop_unroll_factor): Move decl outside #ifdef HAIFA.
        (loop_unroll_iter): Removed unused decl.
        * unroll.c (unroll_loop): Remove code to set loop_unroll_iter.
        Always record the unrolling factor.

From-SVN: r15622

        * loop.c (loop_unroll_factor): Move outside #ifdef HAIFA
        conditional.
        (loop_unroll_iter): Remove unused variable and all references.
        (loop_optimize): Always allocate and clear space for loop_unroll_factor.
        (insert_bct): Fix minor formatting problems.
        * loop.h (loop_unroll_factor): Move decl outside #ifdef HAIFA.
        (loop_unroll_iter): Removed unused decl.
        * unroll.c (unroll_loop): Remove code to set loop_unroll_iter.
        Always record the unrolling factor.
More haifa cleanup

From-SVN: r15621

From-SVN: r15620

From-SVN: r15619

        * cse.c (simplify_relational_operation): Set h0u just like h0s.
        Similarly for h1u and h1s.

From-SVN: r15616

        * jump.c (jmp_uses_reg_or_mem): Deleted unused function.
        (find_basic_blocks): Use computed_jump_p to determine if a
        particular JUMP_INSN is a computed jump.
        * reg-stack.c (find_blocks): Use computed_jump_p to determine
        if a particular JUMP_INSN is a computed jump.
        * rtlanal.c (jmp_uses_reg_or_mem): New function.
        (computed_jump_p): Likewise.
        * rtl.h (computed_jump_p): Declare.
        * genattrtab.c (pc_rtx): Define and initialize.
        * loop.c (loop_optimize): Always determine if the current
        function has a computed jump.
        (indirect_jump_in_function_p): Use computed_jump_p to determine
        if a particular JUMP_INSN is a computed jump.
General (and haifa) cleanups.

From-SVN: r15615

From-SVN: r15614

        * loop.c (fix_bct_param): Delete unused function.
        (check_bct_param): Likewise.

From-SVN: r15613

From-SVN: r15601

	* call.c (build_over_call): Do require_complete_type before
	build_cplus_new.

Fixes t20.C mode problem.

From-SVN: r15598

From-SVN: r15594

        * Makefile.in (LIBIO_OBJECTS): Depend on _G_CONFIG_H.

Brought over from devo.

From-SVN: r15593

        * jump.c (thread_jumps): check can_reverse_comparison_p before
        threading a reversed-condition jump.

From-SVN: r15590

        * sched.c (update_flow_info): Don't pass SCRATCH to dead_or_set_p.
        * haifa-sched.c (update_flow_info): Likewise.

From-SVN: r15589

From-SVN: r15564

        * Makefile.in (bootstrap2, bootstrap3): New targets.
        (all-bootstrap): Remove outdated and confusing target.
        (bootstrap, bootstrap2, bootstrap3): Don't pass BOOT_CFLAGS down.

Co-Authored-By: Jeffrey A Law <law@cygnus.com>

From-SVN: r15563

From-SVN: r15562

        * proj.h (FFEPROJ_BSEARCH): Delete all references.
        (FFEPROJ_STRTOUL): Likewise.
        * proj.c (bsearch): Compile this if no bsearch is provided by the
        host system.
        (strtoul): Similarly.

From-SVN: r15561

        * configure.in (strtoul, bsearch): Have autoconf check for these
        functions.
        * configure, config.in: Rebuilt.
So Fortran front end can use HAVE_STRTOUL and HAVE_BSEARCH.

From-SVN: r15560

        * Makefile.in (bootstrap2, bootstrap3): New targets.
        (all-bootstrap): Remove outdated and confusing target.

Co-Authored-By: Jeffrey A Law <law@cygnus.com>

From-SVN: r15559

From-SVN: r15558

        * m68k/xm-mot3300.h (alloca): Properly declare if __STDC__.
        * mips/mips.h (alloca): Likewise.
        * rs6000/xm-rs6000.h (alloca): Likewise.
        * rs6000/xm-sysv4.h: Likewise.
Fixes build problem when using an ANSI compiler that isn't gcc.

From-SVN: r15557

        * g77install.texi: Renamed from install.texi
        * g77.texi: Corresponding changes.

Fixes problem with g77.texi getting gcc/install.texi instead of
gcc/f/install.texi when building in the source tree.

From-SVN: r15556

	* search.c (lookup_field): Call complete_type in all cases.

Fixes CLN problems.

	* decl.c (finish_function): Just warn about flowing off the end.

From-SVN: r15555

	* final.c (final_scan_insn): Hand BARRIERs off to the dwarf2 code.
	* dwarf2out.c (dwarf2out_frame_debug): Pass the whole insn along.
	(dwarf2out_stack_adjust): A BARRIER resets the args space to 0.

	* except.c (end_eh_unwinder): Subtract 1 from return address.
	* libgcc2.c (__throw): Likewise.
	(find_exception_handler): Don't change PC here.  Compare end with >.

From-SVN: r15554

From-SVN: r15553

        * com.c (lang_printable_name): Use verbosity argument.
Just to keep the compiler quiet.

From-SVN: r15552

        * v850.c (compute_register_save_size): Correct register
        number.
        * v850.md (save_interrupt, return_interrupt): Correct
        register number.
        * v850/lib1funcs.asm (save_interrupt): Correct register number.
        (return_interrupt): Use stack pointer, not element pointer.

From-SVN: r15550

        * Makefile.in (stamp-lib): Don't use '$?', explicitly
        list the variables containing the object files to include
        in libf2c.a

From-SVN: r15545

From-SVN: r15544

configure.in, configure: Make sure to create the stage* and include symbolic links in each subdirectory.

	* configure.in, configure: Make sure to create the stage* and include
	symbolic links in each subdirectory.

copy that's also now in at the FSF; only does it if $symbolic_link is
defined to `ln -s'

From-SVN: r15543

        * pa.md (reload_peepholes): Don't allow addresses with side
        effects for the memory operand.
Geez, how long have we been screwing this up...

From-SVN: r15536

        * util/install-info.c: Only provide an external decl for strrchr
        if HAVE_STRCHR is not defined.
Fixes aix build problem.

From-SVN: r15535

	* libgcc2.c (find_exception_handler): Subtract one from our PC when
 	looking for a handler, to avoid hitting the beginning of the next
 	region.

	* except.c (expand_builtin_set_return_addr_reg): Use force_operand.

From-SVN: r15534

        * mips/abi64.h (LONG_MAX_SPEC): Define.
        * mips.h (LONG_MAX_SPEC): Define.
        (CPP_SPEC): Include long_max_spec.
        (EXTRA_SPECS): Include long_max_spec.

Brought over from devo.

From-SVN: r15531

configure.in, configure: Make sure to create the stage* and include symbolic links in each subdirectory...

	* configure.in, configure: Make sure to create the stage* and include
	symbolic links in each subdirectory, as we do in configure.lang for
	non-autoconf configurations.

From-SVN: r15529

configure.in, configure: Make sure to create the stage* and include symbolic links in each subdirectory...

	* configure.in, configure: Make sure to create the stage* and include
	symbolic links in each subdirectory, as we do in configure.lang for
	non-autoconf configurations.

fixes cp 3stage problem

From-SVN: r15528