Initial integration of G77.

Please do a make cleandir before rebuilding gcc!

1 files changed, 2124 insertions, 0 deletions

diff --git a/gnu/usr.bin/gcc/f/ChangeLog b/gnu/usr.bin/gcc/f/ChangeLog
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+Mon Apr  1 10:14:02 1996  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* Version 0.5.18 released.
+
+Mon Mar 25 20:52:24 1996  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* com.c (ffecom_expr_power_integer_): Don't generate code
+	that compares COMPLEX (or, as it happens, REAL) via "LT_EXPR",
+	since the back end crashes on that.  (This code would never
+	be executed anyway, but the test that avoids it has now been
+	translated to control whether the code gets generated at all.)
+	Fixes 960323-3.f.
+
+	* com.c (ffecom_type_localvar_): Handle variable-sized
+	dimension bounds expressions here, so they get calculated
+	and saved on procedure entry.  Fixes 960323-4.f.
+
+	* com.c (ffecom_notify_init_symbol): Symbol has no init
+	info at all if only zeros have been used to initialize it.
+	Fixes 960324-0.f.
+
+	* expr.c, expr.h (ffeexpr_type_combine): Renamed from
+	ffeexpr_type_combine_ and now a public procedure; last arg now
+	a token, instead of an internal structure used to extract a token.
+	Now allows the outputs to be aliased with the inputs.
+	Now allows a NULL token to mean "don't report error".
+	(ffeexpr_reduced_bool2_, ffeexpr_reduced_eqop2_,
+	ffeexpr_reduced_math2_, ffeexpr_reduced_power_,
+	ffeexpr_reduced_relop2_): Handle new calling sequence for
+	ffeexpr_type_combine.
+	* (ffeexpr_convert): Don't put an opCONVERT node
+	in just because the size is unknown; all downstream code
+	should be able to deal without it being there anyway, and
+	getting rid of it allows new intrinsic code to more easily
+	combine types and such without generating bad code.
+	* info.c, info.h (ffeinfo_kindtype_max): Rewrite to do
+	proper comparison of size of types, not just comparison
+	of their internal kind numbers (so I2.eq.I1 doesn't promote
+	I1 to I2, rather the other way around).
+	* intrin.c (ffeintrin_check_): Combine types of arguments
+	in COL a la expression handling, for greater flexibility
+	and permissiveness (though, someday, -fpedantic should
+	report use of this kind of thing).
+	Make sure Hollerith/typeless where CHARACTER expected is
+	rejected.  This all fixes 960323-2.f.
+
+	* ste.c (ffeste_begin_iterdo_): Fix some more type conversions
+	so INTEGER*2-laden DO loops don't crash at compile time on
+	certain machines.  Believed to fix 960323-1.f.
+
+	* stu.c (ffestu_sym_end_transition): Certainly reject
+	whereDUMMY not in any dummy list, whether stateUNCERTAIN
+	or stateUNDERSTOOD.  Fixes 960323-0.f.
+
+Tue Mar 19 13:12:40 1996  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* data.c (ffedata_value): Fix crash on opANY, and simplify
+	the code at the same time.
+
+	* Make-lang.in (f77-runtime): Also depends on lib[FI]77/Makefile...
+	(include/f2c.h...): ...which in turn depend on */Makefile.in.
+	(f77.rebuilt): Rebuild runtime stuff too.
+
+	* intrin.c (ffeintrin_check_): Accommodate TYPELESS/HOLLERITH
+	types, convert args as necessary, etc.
+
+	* expr.c (ffeexpr_convert): Fix test for TYPELESS/HOLLERITH
+	to obey the docs; crash if no source token when error.
+	(ffeexpr_collapse_convert): Crash if no token when error.
+
+Mon Mar 18 15:51:30 1996  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* com.c (ffecom_init_zero_): Renamed from
+	ffecom_init_local_zero_; now handles top-level
+	(COMMON) initializations too.
+
+	* bld.c (ffebld_constant_is_zero):
+	* com.c (ffecom_symbol_transform_, ffecom_sym_transform_assign_,
+	ffecom_transform_common_, ffecom_transform_equiv_):
+	* data.c:
+	* equiv.c:
+	* equiv.h:
+	* lang-options.h:
+	* stc.c:
+	* storag.c:
+	* storag.h:
+	* symbol.c:
+	* symbol.h:
+	* target.c:
+	* target.h:
+	* top.c:
+	* top.h: All of this is mostly housekeeping-type changes
+	to support -f(no-)zeros, i.e. not always stuff zero
+	values into the initializer fields of symbol/storage objects,
+	but still track that they have been given initial values.
+
+	* bad.def: Fix wording for DATA-related diagnostics.
+
+	* com.c (ffecom_sym_transform_assign_): Don't check
+	any EQUIVALENCE stuff for local ASSIGN, the check was
+	bad (crashing), and it's not necessary, anyway.
+
+	* com.c (ffecom_expr_intrinsic_): For MAX and MIN,
+	ignore null arguments as far arg[123], and fix handling
+	of ANY arguments.  (New intrinsic support now allows
+	spurious trailing null arguments.)
+
+	* com.c (ffecom_init_0): Add HOLLERITH (unsigned)
+	equivalents for INTEGER*2, *4, and *8, so shift intrinsics
+	and other things that need unsigned versions of signed
+	types work.
+
+Sat Mar 16 12:11:40 1996  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* storag.c (ffestorag_exec_layout): Treat adjustable
+	local array like dummy -- don't create storage object.
+	* com.c (ffecom_sym_transform_): Allow for NULL storage
+	object in LOCAL case (adjustable array).
+
+Fri Mar 15 13:09:41 1996  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* com.c (ffecom_sym_transform_): Allow local symbols
+	with nonconstant sizes (adjustable local arrays).
+	(ffecom_type_localvar_): Allow dimensions with nonconstant
+	component (adjustable local arrays).
+	* expr.c: Various minor changes to handle adjustable
+	local arrays (a new case of stateUNCERTAIN).
+	* stu.c (ffestu_sym_end_transition,
+	ffestu_sym_exec_transition): Ditto.
+	* symbol.def: Update docs to reflect these changes.
+
+	* com.c (ffecom_expr_): Reduce space/time needed for
+	opACCTER case by handling it here instead of converting
+	it to opARRTER earlier on.
+	(ffecom_notify_init_storage): Don't convert ACCTER to ARRTER.
+	(ffecom_notify_init_symbol): Ditto.
+
+	* com.c (ffecom_init_0): Crash and burn if any of the types'
+	sizes, according to the GBE, disagrees with the sizes of
+	the FFE's internal implementation.  This might catch
+	Alpha/SGI bugs earlier.
+
+Fri Mar 15 01:09:41 1996  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* com-rt.def, com.c, com.h: Changes for rewrite of intrinsic
+	handling.
+	* com.c (ffecom_arglist_expr_): New function.
+	(ffecom_widest_expr_type_): New function.
+	(ffecom_expr_intrinsic_): Reorganize, some rewriting.
+	(ffecom_f2c_make_type_): Layout complex types.
+	(ffecom_gfrt_args_): New function.
+	(ffecom_list_expr): Trivial change for consistency.
+
+	* expr.c (ffeexpr_token_name_rhs_): Go back to getting
+	type from specific, not implementation, info.
+	(ffeexpr_token_funsubstr_): Set intrinsic implementation too!
+	* intrin.c: Major rewrite of most portions.
+	* intrin.def: Major rearchitecting of tables.
+	* intrin.h (ffeintrin_basictype, ffeintrin_kindtype):
+	Now (once again) take ffeintrinSpec as arg, not ffeintrinImp;
+	for now, these return NONE, since they're not really needed
+	and adding the necessary info to the tables is not trivial.
+	(ffeintrin_codegen_imp): New function.
+	* stc.c (ffestc_R1208_item): Change way ffeintrin funcs called,
+	back to original per above; but comment out the code anyway.
+
+	* intrin.c (ffe_init_0): Do internal checks only if
+	-fset-g77-defaults not specified.
+
+	* lang-options.h: Add -fset-g77-defaults option.
+	* lang-specs.h: Always pass -fset-g77-defaults.
+	* top.c, top.h: New option.
+
+Sat Mar  9 17:49:50 1996  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* Make-lang.in (stmp-int-hdrs): Use --no-validate when
+	generating the f77.rebuilt files (BUGS, INSTALL, NEWS)
+	so cross-references can work properly in g77.info
+	without a lot of hassle.  Users can probably deal with
+	the way they end up looking in the f77.rebuilt files.
+
+	* bld.c (ffebld_constant_new_integer4_val): INTEGER*8
+	support -- new function.
+	(ffebld_constant_new_logical4_val): New function.
+	* com.c (ffecom_f2c_longint_type_node): New type.
+	(FFECOM_rttypeLONGINT_): New return type code.
+	(ffecom_expr_): Add code to invoke pow_qq instead
+	of pow_ii for INTEGER4 (INTEGER*8) case.
+	If ffecom_expr_power_integer_ returns NULL_TREE, just do
+	the usual work.
+	(ffecom_make_gfrt_): Handle new type.
+	(ffecom_expr_power_integer_): Let caller do the work if in
+	dummy-transforming case, since
+	caller now knows about INTEGER*8 and such, by returning
+	NULL_TREE.
+	* expr.c (ffeexpr_reduced_power_): Complain about non-INTEGER
+	raised to INTEGER4 (INTEGER*8) power.
+
+	* target.c (ffetarget_power_integerdefault_integerdefault):
+	Fix any**negative.
+	* com.c (ffecom_expr_power_integer_): Fix (-1)**(-8) and similar
+	to ABS() the integral result if the exponent is negative
+	and even.
+
+	* ste.c (ffeste_begin_iterdo_): Clean up a type ref.
+	Always convert iteration count to _default_ INTEGER.
+
+	* sta.c (ffesta_second_): Add BYTE and WORD type/stmts;
+	changes by Scott Snyder <snyder@d0sgif.fnal.gov>.
+	* stb.c (ffestb_decl_recursive): Ditto.
+	(ffestb_decl_recursive): Ditto.
+	(ffestb_decl_entsp_2_): Ditto.
+	(ffestb_decl_entsp_3_): Ditto.
+	(ffestb_decl_funcname_2_): Ditto.
+	(ffestb_decl_R539): Ditto.
+	(ffestb_decl_R5395_): Ditto.
+	* stc.c (ffestc_establish_declstmt_): Ditto.
+	* std.c (ffestd_R539item): Ditto.
+	(ffestd_R1219): Ditto.
+	* stp.h: Ditto.
+	* str-1t.fin: Ditto.
+	* str-2t.fin: Ditto.
+
+	* expr.c (ffeexpr_finished_): For DO loops, allow
+	any INTEGER type; convert LOGICAL (assuming -fugly)
+	to corresponding INTEGER type instead of always default
+	INTEGER; let later phases do conversion of DO start,
+	end, incr vars for implied-DO; change checks for non-integral
+	DO vars to be -Wsurprising warnings.
+	* ste.c (ffeste_io_impdo_): Convert start, end, and incr
+	to type of DO variable.
+
+	* com.c (ffecom_init_0): Add new types for [IL][234],
+	much of which was done by Scott Snyder <snyder@d0sgif.fnal.gov>.
+	* target.c: Ditto.
+	* target.h: Ditto.
+
+Wed Mar  6 14:08:45 1996  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* top.c (ffe_init_gbe_): Make -frerun-loop-opt the default.
+
+Mon Mar  4 12:27:00 1996  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* expr.c (ffeexpr_exprstack_push_unary_): Really warn only
+	about two successive _arithmetic_ operators.
+
+	* stc.c (ffestc_R522item_object): Allow SAVE of (understood)
+	local entity.
+
+	* top.c (ffe_decode_option): New -f(no-)second-underscore options.
+	* top.h: New options.
+	* com.c (ffecom_get_external_identifier_, ffecom_get_identifier_):
+	New options.
+
+	* Make-lang.in (f77.maintainer-clean): Clean f/BUGS, f/INSTALL,
+	f/NEWS.
+	($(srcdir)/f/BUGS, $(srcdir)/f/INSTALL, $(srcdir)/f/NEWS):
+	New rules.
+	($(srcdir)/f/g77.info, $(srcdir)/f/g77.dvi): Depend on
+	f/bugs.texi and f/news.texi.
+	(f77.install-man): Install f77 man pages (if enabled).
+	(f77.uninstall): Uninstall info docs, f77 man pages (if enabled).
+
+	* top.c (ffe_init_gbe_): New function.
+	(ffe_decode_option, ffe_file): Call ffe_init_gbe_ to
+	set defaults for gcc options.
+
+Sat Jan 20 13:57:19 1996  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* com.c (ffecom_get_identifier_): Eliminate needless
+	comparison of results of strchr.
+
+Tue Dec 26 11:41:56 1995  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* Make-lang.in: Add rules for new files g77.texi, g77.info,
+	and g77.dvi.
+	Reorganize the *clean rules to more closely parallel gcc's.
+
+	* config-lang.in: Exclude g77.info from diffs.
+
+Sun Dec 10 02:29:13 1995  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* expr.c (ffeexpr_declare_unadorned_,
+	ffeexpr_declare_parenthesized_): Break out handling of
+	contextDATAIMPDO[INDEX,CTRL] so it's independent of symbol state.
+	Don't exec-transition these here (let ffeexpr_sym_impdoitem_
+	handle that when appropriate).  Don't "declare" them twice.
+
+Tue Dec  5 06:48:26 1995  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* stc.c (ffestc_promote_sfdummy_): Allow whereNONE parent
+	symbol, since it is not necessarily known whether it will
+	become LOCAL or DUMMY.
+
+Mon Dec  4 03:46:55 1995  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* lex.c (ffelex_display_token, ffelex_type_string_): Resurrect
+	these from their old versions and update them for possible invocation
+	from debugger.
+	* lex.h (ffelex_display_token): Declare this in case anyone
+	else wants to call it.
+
+	* lex.c (ffelex_total_tokens_): Have this reflect actual allocated
+	tokens, no longer include outstanding "uses" of tokens.
+
+	* malloc.c, malloc.h (MALLOC_DEBUG): New macro to control
+	checking of whether callers follow rules, now defaults to 0
+	for "no checking" to improve compile times.
+
+	* malloc.c (malloc_pool_kill): Fix bug that could prevent
+	subpool from actually being killed (wasn't setting its use
+	count to 1).
+
+	* proj.h, *.c (dmpout): Replace all occurrences of `stdout'
+	and some of `stderr' with `dmpout', so where to dump debugging
+	output can be easily controlled during build; add default
+	for `dmpout' of `stderr' to proj.h.
+
+Sun Dec  3 00:56:29 1995  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* com.c (ffecom_return_expr): Eliminate attempt at warning
+	about unset return values, since the back end does this better,
+	with better wording, and is not triggered by clearly working
+	(but spaghetti) code as easily as this test.
+
+Sat Dec  2 08:28:56 1995  Craig Burley  <burley@gnu.ai.mit.edu>
+
+	* target.c (ffetarget_power_*_integerdefault): Raising 0 to
+	integer constant power should not be an error condition;
+	if so, other code should catch 0 to any power, etc.
+
+	* bad.def (FFEBAD_BAD_POWER): 0**integer now a warning instead
+	of an error.
+
+Fri Dec  1 00:12:03 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* bad.def: Clarify diagnostic regarding complex constant elements.
+	* expr.c (ffeexpr_cb_comma_c_): Capitalize real/imaginary
+	for clarified diagnostic.
+
+	* com.c (ffecom_close_include_): Close the file!
+
+	* lex.c (ffelex_file_fixed): Update line info if the line
+	has any content, not just if it finishes a previous line
+	or has a label.
+	(ffelex_file_free): Clarify switch statement code.
+
+Sat Nov 18 19:37:22 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.17 released.
+
+Fri Nov 17 14:27:24 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Make-lang.in: Fix typo in comment.
+
+	* Makefile.in (f/fini.o, f/proj-h.o): Don't use `$<' since
+	not all makes support it (e.g. NeXT make), use explicit
+	source name instead (with $(srcdir) and munging).
+	(ASSERT_H): assert.h lives in source dir, not build dir.
+
+Thu Nov 16 12:47:50 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_init_0): Fix dumb bug in code to produce
+	warning message about non-32-bit-systems.
+
+	* stc.c (ffestc_R501_item): Parenthesize test to make
+	warning go away (and perhaps fix bug).
+
+Thu Nov 16 03:43:33 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* g77.c: Upgrade to 2.7.0's gcc.c.
+	Fix -v to pass a temp name instead of "/dev/null" for "-o".
+
+Fri Nov 10 19:16:05 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* ste.c (ffeste_begin_iterdo_): Add Toon's change to
+	make loops faster on some machines (implement termination
+	condition as "--i >= 0" instead of "i-- > 0").
+
+Thu Nov  2 03:58:17 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Make-lang.in: Remove unnecessary $(exeext) a la cp/Make-lang.in.
+
+	* com.c (ffecom_expr_): Restore old strategy for assignp variant
+	of opSYMTER case...always return the ASSIGN version of var.
+	That way, `-O -Wuninitialized' will catch "I=3;GOTO I;END"
+	(though the diagnostic will refer to `__g77_ASSIGN_i').
+
+	* com.c (ffecom_expr_power_integer_): For constant rhs case,
+	wrap every new eval of lhs in save_expr() so it is clear to
+	back end that MULT_EXPR(lhs,lhs) has identical operands,
+	otherwise for an rhs like 32767 it generates around 65K pseudo
+	registers, which which stupid_life_analysis cannot cope
+	(due to reg_renumber in regs.h being `short *' instead of
+	`int *').
+
+	* com.c (ffecom_expr_): Speed up implementation of LOGICAL
+	versions of opNOT, opAND, opOR, opXOR/opNEQV, and opEQV by
+	assuming the values actually are kosher LOGICAL bit patterns.
+	Also simplify code that implements some of the INTEGER versions
+	of these.
+
+	* com.c (skip_redundant_dir_prefix, read_name_map,
+	ffecom_open_include_, signed_type, unsigned_type): Fold in
+	changes to cccp.c made from 2.7.0 through ss-950826.
+
+	* equiv.c (ffeequiv_layout_local_): Kill the equiv list
+	if no syms in list.
+
+	* expr.c (ffeexpr_reduced_eqop2_): Issue specific diagnostic
+	regarding usage of .EQV./.NEQV. in preference to .EQ./.NE..
+
+	* intrin.c: Add ERF and ERFC as generic intrinsics.
+	intrin.def: Same.
+
+	* sta.c (ffesta_save_, ffesta_second_): Whoever calls
+	ffestd_exec_begin must also set ffesta_seen_first_exec = TRUE,
+	and anytime stc sees an exec transition, it must do both.
+	stc.c (ffestc_eof): Same.
+
+	* stc.c (ffestc_promote_sfdummy_): If failed implicit typing
+	or CHARACTER*(*) arg, after calling ffesymbol_error, don't
+	reset info to ENTITY/DUMMY, because ffecom_sym_transform_
+	doesn't expect such a thing with ANY/ANY type.
+
+	* target.h (*logical*): Change some of these so they parallel
+	changes in com.c, e.g. for _eqv_, use (l)==(r) instead of
+	!!(l)==!!(r), to get a more faithful result.
+
+Fri Oct 27 07:06:59 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_sym_transform_): Simplify code for local
+	EQUIVALENCE case.
+
+	* expr.c (ffeexpr_exprstack_push_unary_): Warn about two
+	successive operators.
+	(ffeexpr_exprstack_push_binary_): Warn about "surprising"
+	operator precedence, as in "-2**2".
+
+	* lang-options.h: Add -W(no-)surprising options.
+
+	* parse.c (yyparse): Don't reset -fpedantic if not -pedantic.
+
+	* top.c (ffe_decode_option): Support new -Wsurprising option.
+	* top.h: Ditto.
+
+Mon Oct 23 09:14:15 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_finish_symbol_transform_): Don't transform
+	NONE/NONE (CHARACTER*(*)) vars, as these don't mean anything
+	in debugging terms, and can't be turned into anything
+	in the back end (so ffecom_sym_transform_ crashes on them).
+
+	* com.c (ffecom_expr_): Change strategy for assignp variant
+	of opSYMTER case...always return the original var unless
+	it is not wide enough.
+
+	* ste.c (ffeste_io_cilist_): Clarify diagnostic for ASSIGN
+	involving too-narrow variable.  This shouldn't happen, though.
+	(ffeste_io_icilist_): Ditto.
+	(ffeste_R838): Ditto.
+	(ffeste_R839): Ditto.
+
+Thu Oct 19 03:21:20 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_sym_transform_assign_): Set TREE_STATIC
+	using the same decision-making process as used for their twin
+	variables, so ASSIGN can last across RETURN/CALL as appropriate.
+
+Fri Sep 22 20:21:18 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Makefile.in: fini is a host program, so it needs a host-compiled
+	version of proj.o, named proj-h.o.  f/fini, f/fini.o, and
+	f/proj-h.o targets updated accordingly.
+
+	* com.c (__eprintf): New function.
+
+Wed Sep 20 02:26:36 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* lang-options.h: Add omitted -funix-intrinsics-* options.
+
+	* malloc.c (malloc_find_inpool_): Check for infinite
+	loop, crash if detected (user reports encountering
+	them in some large programs, this might help track
+	down the bugs).
+
+Thu Sep  7 13:00:32 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (lang_print_error_function): Don't dereference null
+	pointer when outside any program unit.
+	(ffecom_let_char_, ffecom_arg_ptr_to_expr): If catlist
+	item or length ever error_mark_node, don't continue processing,
+	since back-end functions like build_pointer_type crash on
+	error_mark_node's (due to pushing bad obstacks, etc.).
+
+Wed Aug 30 15:58:35 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.16 released.
+
+Mon Aug 28 12:24:20 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* bad.c (ffebad_finish): Fix botched message when no places
+	are printed (due to unknown line info, etc.).
+
+	* std.c (ffestd_subr_labels_): Do a better job finding
+	line info in the case of typeANY and diagnostics.
+
+Fri Aug 25 15:19:29 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (DECL_ARTIFICIAL): Surround all references to this
+	macro with #if !BUILT_FOR_270 and #endif.
+	(init_lex): Surround print_error_function decl with
+	#if !BUILT_FOR_270 and #endif.
+	(lang_init): Call new ffelex_hash_kludge function to solve
+	problem with preprocessed files that have INCLUDE statements.
+
+	* lex.c (ffelex_getc_): New function.
+	(ffelex_cfelex_): Use ffelex_getc_ instead of getc in any
+	paths of code that can be affected by ffelex_hash_kludge.
+	Don't make an EOF token for unrecognized token; set token
+	to NULL instead, to avoid problems when not initialized.
+	(ffelex_hash_): Use ffelex_getc_ instead of getc in any
+	paths of code that can be affected by ffelex_hash_kludge.
+	Test token returned by ffelex_cfelex_ for NULL, meaning
+	unrecognized token.
+	Get rid of useless used_up variable.
+	Don't do ffewhere stuff or kill any tokens if in
+	ffelex_hash_kludge.
+	(ffelex_file_fixed, ffelex_file_free): Use ffelex_getc_
+	instead of getc in any paths of code that can be affected
+	by ffelex_hash_kludge.
+	(ffelex_hash_kludge): New function.
+
+	* lex.h (ffelex_hash_kludge): New function.
+
+Wed Aug 23 15:17:40 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c: Implement -f(no-)underscoring options by always
+	compiling in code to do it, and having that code inhibit
+	itself when -fno-underscoring is in effect.  This option
+	overrides -f(no-)f2c for this purpose; -f(no-)f2c returns
+	to it's <=0.5.15 behavior of affecting only how code
+	is generated, not how/whether names are mangled.
+
+	* target.h: Redo specification of appending underscores so
+	the macros are named "_default" instead of "_is" and the
+	two-underscore macro defaults to 1.
+
+	* top.c, top.h (underscoring): Add appropriate stuff
+	for the -f(no-)underscoring options.
+
+Tue Aug 22 10:25:01 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* bad.c (ffebad_finish): Call report_error_function (in toplev.c)
+	to better identify location of problem.
+	Say "(continued):" instead of "(continued:)" for consistency.
+
+	* com.c (ffecom_gen_sfuncdef_): Set and reset new
+	ffecom_nested_entry_ variable to hold ffesymbol being compiled.
+	(lang_print_error_function): New function from toplev.c.
+	Use ffecom_nested_entry_ to help determine which name
+	and kind-string to print.
+	(ffecom_expr_intrinsic_): Handle EXIT and FLUSH invocations
+	with different calling sequences than library functions.
+	Have SIGNAL and SYSTEM push and pop calltemps, and convert
+	their return values to the destination type (just in case).
+	(FFECOM_rttypeINT_): New return type for `int', in case
+	gcc/f/runtime/libF77/system_.c(system_) is really supposed
+	to return `int' instead of `ftnint'.
+
+	* com.h (report_error_function): Declare this.
+
+	* equiv.c (ffeequiv_layout_local_): Don't forget to consider
+	root variable itself as possible "first rooted variable",
+	else might never set symbol and then crash later.
+
+	* intrin.c (ffeintrin_check_exit_): Change to allow no args
+	and rename to ffeintrin_check_int_1_o_ for `optional'.
+	#define ffeintrin_check_exit_ and _flush_ to this new
+	function, so intrin.def can refer to the appropriate names.
+
+	* intrin.def (FFEINTRIN_impFLUSH): Validate using
+	ffeintrin_check_flush_ so passing an INTEGER arg is allowed.
+
+	* lex.c (ffelex_file_push_, ffelex_file_pop_): New functions
+	to manage input_file_stack in gbe.
+	(ffelex_hash_): Call new functions (instead of doing code).
+	(ffelex_include_): Call new functions to update stack for
+	INCLUDE (_hash_ handles cpp output of #include).
+
+Mon Aug 21 08:09:04 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Makefile.in: Put `-W' in front of every `-Wall', since
+	2.7.0 requires that to engage `-Wunused' for parameters.
+
+	* com.c: Mark all parameters as artificial, so
+	`-W -Wunused' doesn't complain about unused ones (since
+	there's no way right not to individually specify attributes
+	like `unused').
+
+	* proj.h: Don't #define UNUSED if already defined, regardless
+	of host compiler.
+
+Sun Aug 20 16:03:56 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* gbe/2.7.0.diff: Regenerate.
+
+	* lang-options.h, lang-specs.h: If not __STDC__ (ANSI C),
+	avoid doing anything, especially the stringizing in -specs.h.
+
+Thu Aug 17 03:36:12 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* lang-specs.h: Remove useless optional settings of -traditional,
+	since -traditional is always set anyway.
+
+Wed Aug 16 16:56:46 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Make-lang.in (F2C_INSTALL_FLAG, F2CLIBOK): More
+	control over whether to install f2c-related stuff.
+	(install-f2c-*): New targets to install f2c-related
+	stuff in system, not just gcc, directories.
+
+	* com.c: Change calls to ffecom_get_invented_identifier
+	to use generally more predictable names.
+	Change calls to build_range_type to ensure consistency
+	of types of operands.
+	(ffecom_get_external_identifier_): Change to accept
+	symbol info, not just text, so it can use f2c flag for
+	symbol to decide whether to append underscore(s).
+	(ffecom_get_identifier_): Don't change names if f2c flag
+	off for compilation.
+	(ffecom_type_permanent_copy_): Use same type for new max as
+	used for min.
+	(ffecom_notify_init_storage): Offline fixups for stand-alone.
+
+	* data.c (ffedata_gather): Explicitly test for common block,
+	since it's no longer always the case that a local EQUIVALENCE
+	group has no symbol ptr (it now can, if a user-predictable
+	"rooted" symbol has been identified).
+
+	* equiv.c: Add some debugging stuff.
+	(ffeequiv_layout_local_): Set symbol ptr with user-predictable
+	"rooted" symbol, for giving the invented aggregate a
+	predictable name.
+
+	* g77.c (append_arg): Allow for 20 extra args instead of 10.
+	(main): For version-only case, add `-fnull-version' and, unless
+	explicitly omitted, `-lf2c -lm'.
+
+	* lang-options.h: New "-fnull-version" option.
+
+	* lang-specs.h: Support ".fpp" suffix for preprocessed source
+	(useful for OS/2, MS-DOS, other case-insensitive systems).
+
+	* stc.c (ffestc_R544_equiv_): Swap way lists are merged so this
+	is consistent with the order in which lists are built, making
+	user predictability of invented aggregate name much higher.
+
+	* storag.c, storag.h (FFESTORAG_typeDUMMY): Delete this enum.
+
+	* top.c: Accept, but otherwise ignore, `-fnull-version'.
+
+Tue Aug 15 07:01:07 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* DOC, INSTALL, PROJECTS: Extensive improvements to documentation.
+
+Sun Aug 13 01:55:18 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* INSTALL (f77-install-ok): Document the use of this file.
+
+	* Make-lang.in (F77_INSTALL_FLAG): New flag to control
+	whether to install an `f77' command (based on whether
+	a file named `f77-install-ok' exists in the source or
+	build directory) to replace the broken attempt to use
+	comment lines to avoid installing `f77' (broken in the
+	sense that it prevented installation of `g77').
+
+Mon Aug  7 06:14:26 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* DOC: Add new sections for g77 & gcc compiler options,
+	source code form, and types, sizes and precisions.
+	Remove lots of old "delta-version" info, or at least
+	summarize it.
+
+	* INSTALL: Add info here that used to be in DOC.
+	Other changes.
+
+	* g77.c (lookup_option, main): Check for --print-* options,
+	so we avoid adding version-determining stuff.
+
+Wed Jul 26 15:51:03 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Make-lang.in, Makefile.in (input.j, INPUT_H): New file.
+	Update dependencies accordingly.
+
+	* bad.c (ffebad_here): Okay to use unknown line/col.
+
+	* compilers.h (@f77-cpp-input): Remove -P option now that
+	# directives are handled by f771.  Update other options
+	to be more consistent with @c in gcc/gcc.c.  Don't run f771
+	if -E specified, etc., a la @c.
+	(@f77): Don't run f771 if -E specified, etc., a la @c.
+
+	* config-lang.in: Avoid use of word "guaranteed".
+
+	* input.j: New file to wrap around gcc/input.h.
+
+	* lex.j: Add support for parsing # directives output by cpp.
+	(ffelex_cfebackslash_): New function.
+	(ffelex_cfelex_): New function.
+	(ffelex_get_directive_line_): New function.
+	(ffelex_hash_): New function.
+	(ffelex_include_): Change to not use ffewhere_file_(begin|end).
+	Also fix bug in pointing to next line (for diagnostics, &c)
+	following successful INCLUDE.
+	(ffelex_next_line_): New function that does chunk of code
+	seen in several places elsewhere in the lexers.
+	(ffelex_file_fixed): Delay finishing statement until source
+	line is registered with ffewhere, so INCLUDE processing
+	picks up the info correctly.
+	Okay to kill or use unknown line/col objects now.
+	Handle HASH (#) lines.
+	Reorder tests for insubstantial lines to put most frequent
+	occurrences at top, for possible minor speedup.
+	Some general consolidation of code.
+	(ffelex_file_free): Handle HASH (#) lines.
+	Okay to kill or use unknown line/col objects now.
+	Some general consolidation of code.
+	(ffelex_init_1): Detect HASH (#) lines.
+	(ffelex_set_expecting_hollerith): Okay to kill or use unknown
+	line/col objects now.
+
+	* lex.h (FFELEX_typeHASH): New enum.
+
+	* options-lang.h (-fident, -fno-ident): New options.
+
+	* stw.c (ffestw_update): Okay to kill unknown line/col objects
+	now.
+
+	* target.h (FFETARGET_okREALQUAD, FFETARGET_okCOMPLEXDOUBLE,
+	FFETARGET_okCOMPLEXQUAD): #define these appropriately.
+
+	* top.c: Include flag.j wrapper, not flags.h directly.
+	(ffe_is_ident_): New flag.
+	(ffe_decode_option): Handle -fident and -fno-ident.
+	(ffe_file): Replace obsolete ffewhere_file_(begin|end) with
+	ffewhere_file_set.
+
+	* top.h (ffe_is_ident_, ffe_is_ident, ffe_set_is_ident):
+	New flag and access functions.
+
+	* where.c, where.h: Remove all tracking of parent file.
+	(ffewhere_file_begin, ffewhere_file_end): Delete these.
+	(ffewhere_line_use): Make it work with unknown line object.
+
+Mon Jul 17 03:04:09 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_sym_transform_): Set DECL_IN_SYSTEM_HEADER
+	flag for any local vars used as stmtfunc dummies or DATA
+	implied-DO iter vars, so no -Wunused warnings are produced
+	for them (a la f2c).
+	(ffecom_init_0): Do "extern int xargc;" for IARGC() intrinsic.
+	Warn if target machine not 32 bits, since g77 isn't yet
+	working on them at all well.
+
+	* expr.c (ffeexpr_sym_lhs_call_, ffeexpr_sym_lhs_data_,
+	ffeexpr_sym_lhs_extfunc_, ffeexpr_sym_rhs_actualarg_,
+	ffeexpr_sym_rhs_let_, ffeexpr_paren_rhs_let_): Don't
+	gratuitously set attr bits that don't apply just
+	to avoid null set meaning error; instead, use explicit
+	error flag, and allow null attr set, to
+	fix certain bugs discovered by looking at this code.
+
+	* g77.c: Major changes to improve support for gcc long options,
+	to make `g77 -v' report more useful info, and so on.
+
+Mon Jul  3 14:49:16 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* DOC, com.c, intrin.h, intrin.c, intrin.def, target.h, top.c,
+	top.h: Add new `unix' group of intrinsics, which includes the
+	newly added ERF, ERFC, EXIT, plus even newer ABORT, DERF, DERFC,
+	FLUSH, GETARG, GETENV, SIGNAL, and SYSTEM.
+
+Tue Jun 27 23:01:05 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* bld.c, bld.h (ffebld_constant_pool,
+	ffebld_constant_character_pool): Use a single macro (the
+	former) to access the pool for allocating constants, instead
+	of latter in public and FFEBLD_CONSTANT_POOL_ internally
+	in bld.c (which was the only one that was correct before
+	these changes).  Add verification of integrity of certain
+	heap-allocated areas.
+
+	* com.c (ffecom_overlap_, ffecom_args_overlap_,
+	ffecom_tree_canonize_ptr_, ffecom_tree_canonize_ref_): New
+	functions to optimize calling COMPLEX and, someday, CHARACTER
+	functions requiring additional argument to be passed.
+	(ffecom_call_, ffecom_call_binop_, ffecom_expr_,
+	ffecom_expr_intrinsic_): Change calling
+	sequences to include more info on possible destination.
+	(ffecom_expr_intrinsic_): Add ERF(), ERFC(), and EXIT()
+	intrinsic code.
+	(ffecom_sym_transform_): For assumed-size arrays, set high
+	bound to highest possible value instead of low bound, to
+	improve validity of overlap checking.
+	(duplicate_decls): If olddecl and newdecl are the same,
+	don't do any munging, just return affirmative.
+
+	* expr.c: Change ffecom_constant_character_pool() to
+	ffecom_constant_pool().
+
+	* info.c (ffeinfo_new): Compile this version if not being
+	compiled by GNU C.
+
+	* info.h (ffeinfo_new): Don't define macro if not being
+	compiled by GNU C.
+
+	* intrin.c, intrin.def: Add ERF(), ERFC(), and EXIT() intrinsics.
+	(ffeintrin_check_exit_): New for EXIT() subroutine intrinsic.
+
+	* malloc.c, malloc.h (malloc_verify_*): New functions to verify
+	integrity of heap-storage areas.
+
+	* stc.c (ffestc_R834, ffestc_R835): Handle possibility that
+	an enclosing DO won't have a construct name even when the
+	CYCLE/EXIT does (i.e. without dereferencing NULL).
+
+	* target.c, target.h (ffetarget_verify_character1): New function
+	to verify integrity of heap storage used to hold character constant.
+
+Thu Jun 22 15:36:39 1995  Howard Gordon  (flash@super.org)
+
+	* stp.h (ffestpVxtcodeIx): Fix typo in typedef for this.
+
+Mon May 29 15:22:31 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* *: Make all sorts of changes to accommodate upcoming gcc-2.7.0.
+	I didn't keep track of them, nor just when I made them, nor
+	when I (much later, probably in early August 1995) modified
+	them so they could properly handle both 2.7.0 and 2.6.x.
+
+	* com.c (ffecom_expr_power_integer_): Don't expand_start_stmt_expr
+	if transforming dummy args, because the back end cannot handle
+	that (it's rejected by the gcc front end), just generate
+	call to run-time library.
+	Back out changes in 0.5.15 because more temporaries might be
+	needed anyway (for COMPLEX**INTEGER).
+	(ffecom_push_tempvar): Remove inhibitor.
+	Around start_decl and finish_decl (in particular, arround
+	expand_decl, which is called by them), push NULL_TREE into
+	sequence_rtl_expr, an external published by gcc/function.c.
+	This makes sure the temporary is truly in the function's
+	context, not the inner context of a statement-valued expression.
+	(I think the back end is inconsistent here, but am not
+	interested in convincing the gbe maintainers about this now.)
+	(pushdecl): Make sure that when pushing PARM_DECLs, nothing
+	other than them are pushed, as happened for 0.5.15 and which,
+	if done for other reasons not fixed here, might well indicate
+	some other problem -- so crash if it happens.
+
+	* equiv.c (ffeequiv_layout_local_): If the local equiv group
+	has a non-nil COMMON field, it should mean that an error has
+	occurred and been reported, so just trash the local equiv
+	group and do nothing.
+
+	* stc.c (ffestc_promote_sfdummy_): Set sfdummy arg state to
+	UNDERSTOOD so above checking for duplicate args actually
+	works, and so we don't crash later in pushdecl.
+
+	* ste.c (ffeste_R1001): Set initial value only for VAR_DECLs,
+	not for, e.g., LABEL_DECLs, which the FORMAT label can be
+	if it was previously treated as an executable label.
+
+Sat May 20 01:53:53 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_sym_transform_): For adjustable arrays,
+	pass high bound through variable_size in case its primaries
+	are changed (dumb0.f, and this might also improve
+	performance so it approaches f2c|gcc).
+
+Fri May 19 11:00:36 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.15 released.
+
+	* com.c (ffecom_expr_power_integer_): Push temp vars
+	before expanding a statement expression, since that seems
+	to cause temp vars to be "forgotten" after the end of the
+	expansion in the back end.  Disallow more temp-var
+	pushing during such an expansion, just in case.
+	(ffecom_push_tempvar): Crash if a new variable needs to be
+	pushed but cannot be at this point (should never happen).
+
+Wed May 17 12:26:16 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* expr.c (ffeexpr_collapse_convert): Add code to convert
+	LOGICAL to CHARACTER.  Reject conversion of REAL or COMPLEX
+	to CHARACTER entirely, as it cannot be supported with all
+	configurations.
+
+	* target.h, target.c (ffetarget_convert_character1_logical1):
+	New function.
+
+Sun May 14 00:00:09 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_do_entry_, ffecom_gen_sfuncdef_,
+	ffecom_start_progunit_, ffecom_sym_transform_,
+	ffecom_init_0, start_function): Changes to have REAL
+	external functions return same type as DOUBLE PRECISION
+	external functions when -ff2c is in force; while at it,
+	some code cleanups done.
+
+	* stc.c (ffestc_R547_item_object): Disallow array declarator
+	if one already exists for symbol.
+
+	* ste.c (ffeste_R1227): Convert result variable to type
+	of function result as seen by back end (e.g. for when REAL
+	external function actually returns result as double).
+
+	* target.h (FFETARGET_defaultFIXED_LINE_LENGTH): New
+	macro for default for -ffixed-line-length-N option.
+
+	* top.c (ffe_fixed_line_length_): Initialize this to new
+	target.h macro instead of constant 72.
+
+Tue May  9 01:20:03 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* lex.c (ffelex_send_token_): If sending CHARACTER token with
+	null text field, put a single '\0' in it and set length/size
+	fields to 0 (to fix 950508-0.f).
+	(ffelex_image_char_): When setting ffelex_bad_line_ to TRUE,
+	always "close" card image by appending a null char and setting
+	ffelex_card_length_.  As part of this, append useful text
+	to identify the two kinds of problems that involve this.
+	(ffelex_file_fixed): Reset ffelex_bad_line_ to FALSE after
+	seeing a line with invalid first character (fixes 950508-1.f).
+	If final nontab column is zero, assume tab seen in line.
+	(ffelex_card_image_): Always make this array 8 characters
+	longer than reflected by ffelex_card_size_.
+	(ffelex_init_1): Get final nontab column info from top instead
+	of assuming 72.
+
+	* options-lang.h: Add -ffixed-line-length- prefix.
+
+	* top.h: Add ffe_fixed_line_length() and _set_ version, plus
+	corresponding extern.
+
+	* top.c: Handle -ffixed-line-length- option prefix.
+
+Fri Apr 28 05:40:25 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.14 released.
+
+	* Make-lang.in: Add assert.j.
+
+	* Makefile.in: Add assert.j.
+
+	* assert.j: New file.
+
+Thu Apr 27 16:24:22 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* bad.h (ffebad_severity): New function.
+
+	* bad.c (ffebad_severity): New function.
+
+	* bad.def (FFEBAD_OPEN_INCLUDE): Change severity from SEVERE
+	to FATAL, since processing continues, and that seems fine.
+
+	* com.c: Add facility to handle -I.
+	(ffecom_file, ffecom_close_include, ffecom_open_include,
+	ffecom_decode_include_option): New global functions for -I.
+	(ffecom_file_, ffecom_initialize_char_syntax_,
+	ffecom_close_include_, ffecom_decode_include_option_,
+	ffecom_open_include_, append_include_chain, open_include_file,
+	print_containing_files, read_filename_string, file_name_map,
+	savestring): New internal functions for -I.
+
+	* compilers.h: Pass -I flag(s) to f771 (via "%{I*}").
+
+	* lex.c (ffelex_include_): Call ffecom_close_include
+	to close include file, for its tracking needs for -I,
+	instead of using fclose.
+
+	* options-lang.h: Add -I prefix.
+
+	* parse.c (yyparse): Call ffecom_file for main input file,
+	so -I handling works (diagnostics).
+
+	* std.c (ffestd_S3P4): Have ffecom_open_include handle
+	opening and diagnosing errors with INCLUDE files.
+
+	* ste.c (ffeste_begin_iterdo_): Use correct algorithm for
+	calculating # of iterations -- mathematically similar but
+	computationally different algorithm was not handling cases
+	like "DO I=6,5,2" correctly, because (5-6)/2+1 => 1, not 0.
+
+	* top.c (ffe_decode_option): Allow -I, restructure a bit
+	for clarity and, maybe, speed.
+
+Mon Apr 17 13:31:11 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* g77.c: Remove -lc, turns out not all systems has it, but
+	leave other changes in for clarity of code.
+
+Sun Apr 16 21:50:33 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_expr_): Implement ARRAY_EXPR as INDIRECT_REF
+	of appropriate PLUS_EXPRs of ptr_to_expr of array, to see
+	if this generates better code.  (Conditional on
+	FFECOM_FASTER_ARRAY_REFS.)
+
+Sun Apr 16 00:22:48 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Make-lang.in (F77_SRCS): Remove g77.c, since it doesn't
+	contribute to building f771.
+
+	* Makefile.in (dircheck): Remove/replace with f/Makefile, because
+	phony targets that are referenced in other real targets get run
+	when those targets are specified, which is a waste of time (e.g.
+	when rebuilding and only g77.c has changed, f771 was being linked
+	anyway).
+
+	* g77.c: Include -lc between -lf2c and -lm throughout.
+
+	* implic.c (ffeimplic_establish_symbol): If -Wimplicit, warn if
+	implicit type given to symbol.
+
+	* lex.c (ffelex_include_): Don't gratuitously increment line
+	number here.
+
+	* top.h, top.c (ffe_is_warn_implicit_): New global variable and
+	related access macros.
+	(ffe_decode_option): Handle -W options, including -Wall and
+	-Wimplicit.
+
+	* where.c (ffewhere_line_new): Don't muck with root line (was
+	crashing on null input since lexer changes over the past week
+	or so).
+
+Thu Apr 13 16:48:30 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_init_0): Register built-in functions for cos,
+	sin, and sqrt.
+	(ffecom_tree_fun_type_double): New variable.
+	(ffecom_expr_intrinsic_): Update f2c input and output files
+	to latest version of f2c (no important g77-related changes
+	noted, just bug fixes to f2c and such).
+	(builtin_function): New function from c-decl.c.
+
+	* com-rt.def: Refer to built-in functions for cos, sin, and sqrt.
+
+Thu Apr 13 10:25:09 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_expr_intrinsic_): Convert 0. to appropriate
+	type to keep DCMPLX(I) from crashing the compiler.
+	(ffecom_expr_): Don't convert result from ffecom_tree_divide_.
+	(ffecom_tree_divide_): Add tree_type argument, have all callers
+	pass one, and don't convert right-hand operand to it (this is
+	to make this new function work as much like the old in-line
+	code used in ffecom_expr_ as possible).
+
+	* lex.c: Maintain lineno and input_filename the way the gcc
+	lexer does.
+
+	* std.c (ffestd_exec_end): Save and restore lineno and
+	input_filename around the second pass, which sets them
+	appropriately for each saved statement.
+
+Wed Apr 12 09:44:45 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_expr_power_integer_): New function.
+	(ffecom_expr_): Call new function for power op with integer second
+	argument, for generating better code.  Also replace divide
+	code with call to new ffecom_tree_divide_ function.
+	Canonicalize calls to ffecom_truth_value(_invert).
+	(ffecom_tree_divide_): New function.
+
+Wed Apr  5 14:15:44 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* lex.c: Change to allocate text for tokens only when actually
+	needed, which should speed compilation up somewhat.
+	Change to allow INCLUDE at any point where a statement
+	can end, i.e. in ffelex_finish_statement_ or when a SEMICOLON
+	token is sent.
+	Remove some old, obsolete code.
+	Clean up layout of entire file to improve formatting,
+	readability, etc.
+	(ffelex_set_expecting_hollerith): Remove include argument.
+
+Fri Mar 31 23:19:08 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* bad.h, bad.c (ffebad_start_msg, ffebad_start_msg_lex):
+	New functions to generate arbitrary messages.
+	(FFEBAD_severityPEDANTIC): New severity, to correspond
+	to toplev's pedwarn() function.
+
+	* lex.c (ffelex_backslash_): New function to implement
+	backslash processing.
+	(ffelex_file_fixed, ffelex_file_free): Implement new
+	backslash processing.
+
+	* std.c (ffestd_R1001dump_): Don't assume CHARACTER and
+	HOLLERITH tokens stop at '\0' characters, now that backslash
+	processing is supported -- use their advertised lengths instead,
+	and double up the '\002' character for libf2c.
+
+Mon Mar 27 17:10:33 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_init_local_zero_): Implement -finit-local-zero.
+	(ffecom_sym_transform_): Same.
+	(ffecom_transform_equiv_): Same.
+
+	* options-lang.h: Add -f(no-)(init-local-zero,backslash,ugly-init).
+
+	* stb.c (ffestb_V020): Reject "TYPEblah(...", which might be
+	an array assignment.
+
+	* target.h, top.h, top.c: Implement -finit-local-zero.
+
+Fri Mar 24 19:56:22 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Make-lang.in, Makefile.in: Remove conf-proj(.in) and
+	proj.h(.in) rules, plus related config.log, config.cache,
+	and config.status stuff.
+
+	* com.c (ffecom_init_0): Change messages when atof(), bsearch(),
+	or strtoul() do not work as expected in the start-up test.
+
+	* conf-proj, conf-proj.in: Delete.
+
+	* lex.c (ffelex_file_fixed): Allow f2c's '&' in column 1
+	to mean continuation line.
+
+	* options-lang.h: New file, #include'd by ../toplev.c.
+
+	* proj.h.in: Rename back to proj.h.
+
+	* proj.h (LAME_ASSERT): Remove.
+	(LAME_STDIO): Remove.
+	(NO_STDDEF): Remove.
+	(NO_STDLIB): Remove.
+	(NO_BSEARCH): Remove auto detection, rename to !FFEPROJ_BSEARCH.
+	(NO_STRTOUL): Remove auto detection, rename to !FFEPROJ_STRTOUL.
+	(USE_HOST_LIMITS): Remove (maybe still needed by stand-alone?).
+	(STR, STRX): Do only ANSI C definitions.
+
+Mon Mar 13 10:46:13 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* BUGS: Add item about g77 requiring gcc to compile it.
+
+	* NEWS: New file listing user-visible changes in the release.
+
+	* PROJECTS: Update to include a new item or two, and modify
+	or delete items that are addressed in this or previous releases.
+
+	* bad.c (ffebad_finish): Don't crash if missing string &c,
+	just substitute obviously distressed string "[REPORT BUG!!]"
+	for cases where the message/caller are fudgy.
+
+	* bad.def: Clean up error messages in a major way, add new ones
+	for use by changes in target.c.
+
+	* com.c (ffecom_expr_): Handle opANY in opCONVERT.
+	(ffecom_let_char_): Disregard destinations with ERROR_MARK.
+	(ffecom_1, ffecom_1_fn, ffecom_2, ffecom_2s, ffecom_3,
+	ffecom_3s, &c): Check all inputs for error_mark_node.
+	(ffecom_start_progunit_): Don't transform all symbols
+	in BLOCK DATA, since it never executes, and it is silly
+	to, e.g., generate all the structures for NAMELIST.
+	(ffecom_char_length_expr_): Rename to ffecom_intrinsic_len_.
+	(ffecom_intrinsic_ichar_): New function to handle ICHAR of
+	arbitrary expression with possible 0-length operands.
+	(ffecom_expr_intrinsic_): Use ffecom_intrinsic_char_.
+	For MVBITS, set tree_type to void_type_node.
+	(ffecom_start_progunit_): Name master function for entry points
+	after primary entry point so users can easily guess it while
+	debugging.
+	(ffecom_arg_ptr_to_expr): Change treatment of Hollerith,
+	Typeless, and %DESCR.
+	(ffecom_expr_): Change treatment of Hollerith.
+
+	* data.c (ffedata_gather_): Handle opANY in opCONVERT.
+
+	* expr.c (ffeexpr_token_apostrophe_): Issue FFEBAD_NULL_CHAR_CONST
+	warning as necessary.
+	(ffeexpr_token_name_rhs_): Set context for args to intrinsic
+	so that assignment-like concatenation is allowed for ICHAR(),
+	IACHAR(), and LEN() intrinsics.
+	(ffeexpr_reduced_*_): Say "an array" instead of "an entity" in
+	diagnostics, since it's more informative.
+	(ffeexpr_finished_): For many contexts, check for null expression
+	and array before trying to do a conversion, to avoid redundant
+	diagnostics.
+
+	* g77.1: Fix typo for preprocessed suffix (.F, not .f).
+
+	* global.c (ffeglobal_init_common): Warn if initializing
+	blank common.
+	(ffeglobal_pad_common): Enable code to warn if initial
+	padding needed.
+	(ffeglobal_size_common): Complain if enlarging already-
+	initialized common, since it won't work right anyway.
+
+	* intrin.c: Add IMAG() intrinsic.
+	(ffeintrin_check_loc_): Allow opSUBSTR in LOC().
+
+	* intrin.def: Add IMAG() intrinsic.
+
+	* lex.c: Don't report FFEBAD_NULL_CHAR_CONST errors.
+
+	* sta.c, sta.h, stb.c: Changes to clean up error messages (see
+	bad.def).
+
+	* stb.c (ffestb_R100113_): Issue FFEBAD_NULL_CHAR_CONST
+	warning as necessary.
+
+	* stc.c (ffestc_shriek_do_): Don't try to reference doref_line
+	stuff in ANY case, since it won't be valid.
+	(ffestc_R1227): Allow RETURN in main program unit, with
+	appropriate warnings/errors.
+	(ffestc_subr_format_): Array of any type is a CHAREXPR (F77 C5).
+
+	* ste.c (ffeste_begin_doiter_): Couple of fixes to accurately
+	determine if loop never executes.
+
+	* target.c (ffetarget_convert_*_hollerith_): Append spaces,
+	not zeros, to follow F77 Appendix C, and to warn when
+	truncation of non-blanks done.
+	(ffetarget_convert_*_typeless): Rewrite to do typeless
+	conversions properly, and warn when truncation done.
+	(ffetarget_print_binary, ffetarget_print_octal,
+	ffetarget_print_hex): Rewrite to use new implementation of
+	typeless.
+	(ffetarget_typeless_*): Rewrite to use new implementation
+	of typeless, and to warn about overflow.
+
+	* target.h (ffetargetTypeless): New implementation of
+	this type.
+
+	* type.h, type.c (ffetype_size_typeless): Remove (incorrect)
+	implementation of this function and its extern.
+
+Sun Mar  5 18:46:42 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* BUGS: Clarify that constant handling would also fix lack of
+	adequate IEEE-754/854 support to some degree, and typeless
+	and non-decimal constants.
+
+	* com.c (ffecom_type_permanent_copy_): Comment out to avoid
+	warnings.
+	(duplicate_decls): New function a la gcc/c-decl.c.
+	(pushdecl): Use duplicate_decls to decide whether to return
+	existing decl or new one, instead of always returning existing
+	decl.
+	(ffecom_expr_): opPERCENT_LOC now supports CHARACTER arguments.
+	(ffecom_init_0): Give f2c I/O code 0 for basictypeANY/kindtypeANY.
+	(ffecom_sym_transform_): For adjustable arrays, pass low bound
+	through variable_size in case its primaries are changed (950302-1.f).
+
+	* com.h: More decls that belong in tree.h &c.
+
+	* data.c (ffedata_eval_integer1_): Fix opPAREN case to not
+	treat value of expression as an error code.
+
+	* expr.c (ffeexpr_finished_): Allow opSUBSTR in contextLOC case.
+
+	* proj.c: Add "const" as appropriate.
+
+Mon Feb 27 10:04:03 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* bad.def (FFEBAD_BAD_SUBSTR): Fix bad grammar in message.
+
+Fri Feb 24 16:21:31 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.13 released.
+
+	* INSTALL: Warn that f/zzz.o will compare differently between
+	stages, since it puts the __TIME__ macro into a string.
+
+	* com.c (ffecom_sym_transform_): Transform kindFUNCTION/whereDUMMY
+	to pointer-to-function, not function.
+	(ffecom_expr_): Use ffecom_arg_ptr_to_expr instead of
+	ffecom_char_args_ to handle comparison between CHARACTER
+	types, so either operand can be a CONCATENATE.
+	(ffecom_transform_common_): Set size of initialized common area
+	to global (largest-known) size, even though size of init might
+	be smaller.
+
+	* equiv.c (ffeequiv_offset_): Check symbol info for ANY.
+
+	* expr.c (ffeexpr_find_close_paren_, ffeexpr_nil_*): New functions
+	to handle following the contour of a rejected expression, so
+	statements like "PRINT(I,I,I)=0" don't cause the PRINT statement
+	code to get the second passed back to it as if there was a
+	missing close-paren before it, the comma causing the PRINT code
+	to confirm the statement, resulting in an ambiguity vis-a-vis
+	the let statement code.
+	Use the new ffecom_find_close_paren_ handler when an expected
+	close-paren is missing.
+	(ffeexpr_isdigits_): New function, use in all places that
+	currently use isdigit in repetitive code.
+	(ffeexpr_collapse_symter): Collapse to ANY if init-expr is ANY,
+	so as to avoid having symbol get "transformed" if used to
+	dimension an array.
+	(ffeexpr_token_real_, ffeexpr_token_number_real_): Don't issue
+	diagnostic about exponent, since it'll be passed along the
+	handler path, resulting in a diagnostic anyway.
+	(ffeexpr_token_apos_char_): Use consistent handler path
+	regardless of whether diagnostics inhibited.
+	(ffeexpr_token_name_apos_name_): Skip past closing quote/apos
+	even if not a match or other diagnostic issued.
+	(ffeexpr_sym_impdoitem_): Exec-transition local SEEN symbol.
+
+	* lex.c (ffelex_image_char_): Set ffelex_saw_tab_ if TAB
+	seen, not if anything other than TAB seen!
+
+	* stc.c (ffestc_R537_item): If source is ANY but dest isn't,
+	set dest symbol's init expr to ANY.
+	(ffestc_R501_attrib, ffestc_R522, ffestc_R522start): Complain
+	about conflict between "SAVE" by itself and other uses of
+	SAVE only in pedantic mode.
+
+	* ste.c (ffeste_R1212): Fix loop over labels to always
+	increment caseno, to avoid pushcase returning 2 for duplicate
+	values when one of the labels is invalid.
+
+Thu Feb 23 12:42:04 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.12 released.
+
+	* Make-lang.in (f77.install-common): Add "else true;" before outer
+	"fi" per Makefile.in patch.
+
+	* Makefile.in (dircheck): Add "else true;" before "fi" per
+	patch from chs1pm@surrey.ac.uk.
+
+	* com.c (ffecom_push_tempvar): If type desired is ERROR_MARK,
+	return error_mark_node, to avoid crash that results from
+	making a VAR_DECL with error_mark_node as its type.
+
+	* ste.c (ffeste_begin_iterdo_): Convert itercount to INTEGER
+	anytime calculation of number of iterations ends up with type
+	other than INTEGER (e.g. DOUBLE PRECISION, REAL).
+
+Thu Feb 23 02:48:38 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.11 released.
+
+	* DOC: Explain -fugly-args.
+
+	* bad.def (FFEBAD_ACTUALARG): Explain -fugly-args and how to
+	rewrite code to not require it.
+
+	* com.c (ffecom_vardesc_): Handle negative type code, just in
+	case.
+	(ffecom_arg_ptr_to_expr): Let ffecom_expr handle hollerith
+	and typeless constants (move code to ffecom_constantunion).
+	(ffecom_constantunion): Handle hollerith and typeless constants.
+
+	* expr.c (ffecom_finished_): Check -fugly-args in actual-arg
+	context where hollerith/typeless provided.
+
+	* intrin.def (FFEINTRIN_genDFLOAT): Add FFEINTRIN_specDFLOAT.
+	(FFEINTRIN_specDFLOAT): Add as f2c intrinsic.
+
+	* target.h (ffetarget_convert_real[12]_integer,
+	ffetarget_convert_complex[12]_integer): Pass -1 for high integer
+	value if low part is negative.
+	(FFETARGET_defaultIS_UGLY_ARGS): New macro.
+
+	* top.c (ffe_is_ugly_args_): New variable.
+	(ffe_decode_option): Handle -fugly-args and -fno-ugly-args.
+
+	* top.h (ffe_is_ugly_args_, ffe_is_ugly_args(),
+	ffe_set_is_ugly_args()): New variable and macros.
+
+Thu Feb 23 02:48:38 1995  Pedro A M Vazquez  (vazquez@iqm.unicamp.br)
+
+	* g77.c (sys_errlist): Use const for __FreeBSD__ systems
+	as well.
+
+Wed Feb 22 13:33:43 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.10 released.
+
+	* CREDITS: Add Rick Niles.
+
+	* INSTALL: Note how to get around lack of makeinfo.
+
+	* Make-lang.in (f/proj.h): Remove # comment.
+
+	* Makefile.in (f/proj.h): Remove # comment.
+
+	* com.c (ffecom_expr_): Simplify opFUNCREF/opSUBRREF conversion.
+	(ffecom_sym_transform_): For whereGLOBAL and whereDUMMY
+	kindFUNCTION, use ffecom_tree_fun_type[][] only for non-constant
+	(non-statement-function) f2c functions.
+	(ffecom_init_0): ffecom_tree_fun_type[][] and _ptr_to_*_* are
+	really f2c-interface arrays, so use base type void for COMPLEX
+	(like CHARACTER).
+
+Tue Feb 21 19:01:18 1995  Dave Love  <d.love@dl.ac.uk>
+
+	* Make-lang.in (f77.install-common): Expurgate the test for and
+	possible installation of f2c in line with elsewhere.  Seems to have
+	been missing a semicolon anyhow!
+
+Tue Feb 21 11:45:25 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.9 released.
+
+	* Make-lang.in (f/proj.h): touch file to register update,
+	because the previous commands won't necessarily modify it.
+
+	* Makefile.in (f/proj.h): touch file to register update,
+	because the previous commands won't necessarily modify it.
+
+	* Makefile.in (f/str-*.h, f/str-*.j): Explicitly specify
+	output file names, so these targets go in build, not source,
+	directory.
+
+	* bits.c, bits.h: Switch to valid ANSI C replacement for
+	ARRAY_ZERO.
+
+	* com.c (ffecom_expr_): Add assignp arg to support ASSIGN better.
+	If assignp is TRUE, use different tree for FFEBLD_opSYMTER case.
+	(ffecom_sym_transform_assign_): New function.
+	(ffecom_expr_assign): New function.
+	(ffecom_expr_assign_w): New function.
+
+	* com.c (ffecom_f2c_make_type_): Do make_signed_type instead
+	of make_unsigned_type throughout.
+
+	* com.c (ffecom_finish_symbol_transform_): Expand scope of
+	commented-out code to probably produce faster compiler code.
+
+	* com.c (ffecom_gen_sfuncdef_): Push/pop calltemps so
+	COMPLEX works right.
+	Remove obsolete comment.
+
+	* com.c (ffecom_start_progunit_): If non-multi alt-entry
+	COMPLEX function, primary (static) entry point returns result
+	directory, not via extra arg -- to agree with ffecom_return_expr
+	and others.
+	Pretransform all symbols so statement functions are defined
+	before any code emitted.
+
+	* com.c (ffecom_finish_progunit): Don't posttransform all
+	symbols here -- pretransform them instead.
+
+	* com.c (ffecom_init_0): Don't warn about possible ASSIGN
+	crash, as this shouldn't happen now.
+
+	* com.c (ffecom_push_tempvar): Fix to handle temp vars
+	pushed while context is a statement (nested) function, and
+	add appropriate commentary.
+
+	* com.c (ffecom_return_expr): Check TREE_USED to determine
+	where return value is unset.
+
+	* com.h (struct _ffecom_symbol_): Add note about length_tree
+	now being used to keep tree for ASSIGN version of symbol.
+
+	* com.h (ffecom_expr_assign, ffecom_expr_assign_rw): New decls.
+	(error): Add this prototype for back-end function.
+
+	* fini.c (main): Grab input, output, and include names
+	directly off the command line instead of making the latter
+	two out of the first.
+
+	* lex.c: Improve tab handling for both fixed and free source
+	forms, and ignore carriage-returns on input, while generally
+	improving the code.  ffelex_handle_tab_ has been renamed and
+	reinvented as ffelex_image_char_, among other things.
+
+	* malloc.c, malloc.h: Switch to valid ANSI C replacement for
+	ARRAY_ZERO, and kill the full number of bytes in pools and
+	areas.
+
+	* proj.h.in (ARRAY_ZERO, ARRAY_ZERO_SIZE): Remove.
+
+	* ste.c (ffeste_io_cilist_, ffeste_io_icilist_, ffeste_R838,
+	ffeste_R839): Issue diagnostic if a too-narrow variable used in an
+	ASSIGN context despite changes to this code and code in com.c.
+
+	* where.c, where.h: Switch to valid ANSI C replacement for
+	ARRAY_ZERO.
+
+Fri Feb 17 03:35:19 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.8 released.
+
+	* INSTALL: In quick-build case, list g77 target first so g77
+	gets installed.  Also, explain that gcc gets built and installed
+	as well, even though this isn't really what we want (and maybe
+	we'll find a way around this someday).
+
+Fri Feb 17 02:35:41 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.7 released.
+
+	* Makefile.in (CONFIG_H, HCONFIG_H, TCONFIG_H, TM_H): Remove
+	../ prefix in front of .h files, since they're in the cd.
+
+Fri Feb 17 01:50:48 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.6 released.
+
+Thu Feb 16 20:26:54 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* ../README.g77: Remove description of g77 as "not-yet-published".
+
+	* CREDITS: More changes.
+
+	* Make-lang.in (G77STAGESTUFF): Remove cktyps stuff.
+
+	* Makefile.in (CONFIG_H, HCONFIG_H, TCONFIG_H, TM_H): Don't
+	prefix gcc dir with $(srcdir) since these don't live there,
+	they are created in the build dir by gcc's configure.  Add
+	a note explaining what these macros are about.
+	Update dependencies via deps-kinda.
+
+	* README.NEXTSTEP: Credit Toon, and per his request, add his
+	email address.
+
+	* com.h (FFECOM_DETERMINE_TYPES): #include "config.j".
+
+	* config.j, convert.j, flags.j, hconfig.j, rtl.j, tconfig.j,
+	tm.j, tree.j: Don't #include if already done.
+
+	* convert.j: #include "tree.j" first, as convert.h clearly depends
+	on trees being defined.
+
+	* rtl.j: #include "config.j" first, since there's some stuff
+	in rtl.h that assumes it has been #included.
+
+	* tree.j: #include "config.j" first, or real.h makes inconsistent
+	decision about return type of ereal_atof, leading to bugs, and
+	because tree.h/real.h assume config.h already included.
+
+Wed Feb 15 14:40:20 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.5 released.
+
+	* Copyright notices updated to be FSF-style.
+
+	* INSTALL: Some more clarification regarding building just f77.
+
+	* Make-lang.in (F77_SRCS): Update wrt changing some .h to .j.
+	(install-libf77): Fix typo in new parenthetical note.
+
+	* Makefile.in (f/*.o): Update.
+	(CONFIG_H, CONVERT_H, FLAGS_H, GLIMITS_H, HCONFIG_H, RTL_H,
+	TCONFIG_H, TM_H, TREE_H): Update/new symbols.
+	(deps-kinda): More fixes wrt changing some .h to .j.
+	Document and explain this rule a bit better.
+	Accommodate changes in output of gcc -MM.
+
+	* *.h, *.c: Change #include's so proj.h not assumed to #include
+	malloc.h or config.h (now config.j), and so new .j files are
+	used instead of old .h ones.
+
+	* com.c (ffecom_init_0): Use FLOAT_TYPE_SIZE for f2c's
+	TYLONG/TYLOGICAL type codes, to get g77 working on Alpha.
+
+	* com.h: Make all f2c-related integral types "int", not "long
+	int".
+
+	* config.j, convert.j, flags.j, glimits.j, hconfig.j, rtl.j,
+	tconfig.j, tm.j, tree.j: New files wrapping around gbe
+	.h files.
+
+	* config.h, convert.h, flags.h, glimits.h, hconfig.h, rtl.h,
+	tconfig.h, tm.h, tree.h: Deleted so new .j files
+	can #include the gbe files directly, instead of using "../",
+	and thus do better with various kinds of builds.
+
+	* proj.h: Delete unused NO_STDDEF and related stuff.
+
+Tue Feb 14 08:28:08 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* BUGS: Remove item #12, cross-compiling & autoconf scripts
+	reportedly expected to work properly (according to d.love).
+
+	* INSTALL: Add explanation of d.love's patch to config-lang.in.
+	Add explanation of how to install just g77 when gcc already installed.
+	Add note about usability of "-Wall".  Add note about bug-
+	reporting.
+
+	* Make-lang.in ($(srcdir)/f/conf-proj): Add comment about why
+	conf-proj.out.
+	(install-libf77): Echo parenthetical note to user about how to do
+	just the (aborted) libf2c installation.
+	(deps-kinda): Update to work with new configuration/build stuff.
+
+	* bad.c (ffebad_finish): Put capitalized "warning:" &c message
+	as prefix on any diagnostic without pointers into source.
+
+	* bad.def (FFEBAD_TOO_BIG_INIT): Add this warning message.
+
+	* config-lang.in: Add Dave Love's patch to catch case where
+	back-end patches not applied and abort configuration.
+
+	* data.c (ffedata_gather_, ffedata_value_): Warn when about
+	to initialize a large aggregate area, due to design flaw resulting
+	in too much time/space used to handle such cases.
+	Use COMMON area name, and first notice of symbol, for multiple-
+	initialization diagnostic, instead of member symbol and unknown
+	location.
+	(FFEDATA_sizeTOO_BIG_INIT_): New macro per above.
+
+Mon Feb 13 13:54:26 1995  Dave Love  <d.love@dl.ac.uk>
+
+	* Make-lang.in (F77_SRCS): Use $(srcdir)/f/proj.h.in, not
+	$(srcdir)/f/proj.h for build outside srcdir.
+
+Sun Feb 12 13:37:11 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* ../README.g77: Clarify procedures for unpacking, add asterisks
+	to mark important things the user must do.
+
+	* Fix dates in/add dates to ../README.g77, BUGS, CREDITS, DOC,
+	INSTALL, PROJECTS, README.
+
+Sun Feb 12 00:26:10 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.4 released.
+
+	* Make-lang.in (f/proj.h): Reproduce this rule here from
+	Makefile.in.
+	($(srcdir)/f/conf-proj): Put autoconf's stdout in temp file
+	conf-proj.out, then mv to conf-proj only if successful, so
+	conf-proj not touched if autoconf not installed.
+
+	* Makefile.in ($(srcdir)/conf-proj): See Make-lang.in's similar
+	rule.
+
+Sat Feb 11 20:56:02 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* BUGS: Clarify some bugs.
+
+	* DOC: Many improvements and fixes.
+
+	* README: Move bulk of text, edited, to ../README.g77, and
+	replace with pointer to that file.
+
+	* com.c (ffecom_init_0): Comment out warning about sizeof(ftnlen)
+	as per ste.c change.  Add text about ASSIGN to help user understand
+	what is being warned about.
+
+	* conf-proj.in: Fix typos in comments.
+
+	* proj.h.in: Add ARRAY_ZERO_SIZE to parallel malloc.h's version,
+	in case it proves to be needed.
+
+	* ste.c: Comment out assertions requiring sizeof(ftnlen) >=
+	sizeof(char *), in the hopes that overflow will never happen.
+	(ffeste_R838): Change assertion to fatal() with at least
+	partially helpful message.
+
+Sat Feb 11 12:38:00 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* com.c (ffecom_vardesc_): Crash if typecode is -1.
+
+	* ste.c (ffeste_io_dolio_): Crash if typecode is -1.
+
+Sat Feb 11 09:51:57 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* ste.c: In I/O code tests for item arrayness, sort of revert
+	to much earlier code that tests original exp, but also check
+	in newer way just in case.  Newer way alone treated FOO(1:40)
+	as an array, not sure why older way alone didn't work, but I
+	think maybe it was when diagnosed code was involved, and
+	since there are now checks for error_mark_node, maybe the old
+	way alone would work.  But better to be safe; both original
+	ffebld exp _and_ the transformed tree must indicate an array
+	for the size-determination code to be used, else just 1/2 elements
+	assumed.  And this text is for EMACS: (foo at bar).
+
+Fri Feb 10 11:05:50 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* ste.c: In many cases, surround statement-expansion code
+	with ffecom_push_calltemps () and ffecom_pop_calltemps ()
+	so COMPLEX-returning functions can have temporaries pushed
+	in "auto-pop" mode and have them auto-popped at the end of
+	the statement.
+
+Wed Feb  8 14:35:10 1995  Dave Love  <d.love@dl.ac.uk>
+
+	* runtime/f2c.h.in (ftnlen, ftnint): Make same size as integer.
+
+	* runtime/libI77/err.c (f_init): Thinko in MISSING_FILE_ELEMS
+	conditional.
+	* runtime/libI77/wrtfmt.c (mv_cur): Likewise.
+	* runtime/libI77/wsfe.c (x_putc): Likewise.
+
+	* runtime/libF77/signal_.c (signal_): Return 0 (this is a
+	subroutine).
+
+	* Makefile.in (f/proj.h): Depend on com.h.
+	* Make-lang.in (include/f2c.h): Likewise (and proj.h).
+	(install-libf77): Also install f2c.h.
+
+	* runtime/libI77/Makefile.in (*.o): Add f2c.h dependency.
+	* runtime/libF77/Makefile.in:  Likewise.
+
+Wed Feb  8 13:56:47 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* stc.c (ffestc_R501_item): Don't reset kind/where to NONE when
+	setting basictype/kindtype info for symbol, or especially
+	its function/result twin, because kind/where might not be NONE.
+
+Tue Feb  7 14:47:26 1995  Dave Love  <d.love@dl.ac.uk>
+
+	* Make-lang.in (include/f2c.h:): Set shell variable src more
+	robustly (independent of whether srcdir is relative or absolute).
+	* Makefile.in (f/proj.h:): Likewise.
+
+	* conf-proj.in: Check need for LAME_ASSERT.  Fix indentation in
+	check for LAME_STDIO (cosmetic only with ANSI C).
+
+	* com.h: Extra ...SIZE stuff taken from com.c.
+
+	* com.c (FFECOM_DETERMINE_TYPES): Define before including com.h.
+	(BITS_PER_WORD etc.) Remove and use conditional definitions to com.h.
+
+	* runtime/configure.in: #define FFECOM_DETERMINE_TYPES for com.h in
+	f2c type determination.
+
+	* tm.h: Remove (at least pro tem) because of relative path and use
+	top-level one.
+
+	* Make-lang.in (include/f2c.h:): Set shell variable src more
+	robustly (independent of whether srcdir is relative or absolute).
+	* Makefile.in (f/proj.h:): Likewise.
+
+Mon Feb  6 19:58:32 1995  Dave Love  <d.love@dl.ac.uk>
+
+	* g77.c (append_arg): Use K&R declaration for, e.g. SunOS4 build.
+
+Fri Feb  3 20:33:14 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* g77.c (main): Treat -l like filename in terms of -x handling.
+	Rewrite arglist mechanism for ease of maintenance.
+	Make sure every -lf2c is followed by -lm and vice versa.
+
+	* Make-lang.in: Put complete list of sources in F77_SRCS def
+	so changing a .h file, for example, causes rebuild.
+
+	* Makefile.in: Change test for nextstep to m68k-next-nextstep* so
+	all versions of nextstep on m68k get the necessary flag.
+
+Fri Feb  3 19:10:32 1995  Dave Love  <d.love@dl.ac.uk>
+
+	* INSTALL: Note about possible conflict with existing libf2c.a and
+	f2c.h.
+
+	* Make-lang.in (f77.distclean): Tidy and move deletion of
+	f/config.cache to mostlyclean.
+	(install-libf77): Test for $(libdir)/libf2c.* and barf if found
+	unless F2CLIBOK defined.
+
+	* runtime/Makefile.in (all): Change path to include directory (and
+	elsewhere).
+	(INCLUDES): Remove (unused/misleading).
+	(distclean): Include f2c.h.
+	(clean): Include config.cache.
+
+	* runtime/libF77/Makefile.in (.SUFFIXES): Correct typo.
+	(ALL_CFLAGS) Fix up include search path to find f2c.h in top level
+	includes always.
+	(all): Depend on f2c.h.
+	* runtime/libI77/Makefile.in (.SUFFIXES): Likewise.
+
+Thu Feb  2 17:17:06 1995  Dave Love  <d.love@dl.ac.uk>
+
+	* INSTALL: Note about --srcdir and GNU make.
+
+	* runtime/f2c.h.in (Pad_UDread, ALWAYS_FLUSH): Reomve the #defines
+	per below.
+
+	* runtime/configure.in (Pad_UDread, ALWAYS_FLUSH): Define these
+	here, not in f2c.h as they'r eonly relevant for building.
+	* runtime/configure: Regenerated.
+
+	* config-lang.in: Warn about using GNU make outside source tree
+	since I can't get Irix5 or SunOS4 makes to work in this case.
+
+	* Makefile.in (VPATH): Don't set it here.
+	(srcdir): Make it the normal `.' (overridden) at top level.
+	(all.indirect): New dependency `dircheck'.
+	(f771): Likewise
+	(dircheck): New target for foolproofing.
+	(f/proj.h:): Change finding source.
+	(CONFIG_H): Don't use this as the relative path in the include loses
+	f builddir != srcdir.
+
+	* config.h: Remove per CONFIG_H change above.
+
+	* Make-lang.in (F77_FLAGS_TO_PASS): Remove GCC_FOR_TARGET.
+	(f771:): Pass VPATH, srcdir to sub-make.
+	(f/Makefile:): New target.
+	(stmp-int-hdrs): new variable for cheating build.
+	(f77-runtime:): Alter GCC_FOR_TARGET treatment.
+	(include/f2c.h f/runtime/Makefile:) Likewise.
+	(f77-runtime-unsafe:): New (cheating) target.
+
+Thu Feb  2 12:09:51 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* BUGS: Update regarding losing EQUIVALENCE members in -g, and
+	regarding RS/6000 problems in the back end.
+
+	* CREDITS: Make some changes as requested.
+
+	* com.c (ffecom_member_trunk_): Remove unused static variable.
+	(ffecom_finish_symbol_transform_): Improve comments.
+	(ffecom_let_char_): Fix size of temp address-type var.
+	(ffecom_member_phase2_): Try fixing problem fixed by change
+	to ffecom_transform_equiv_ (f_m_p2_ function currently not used).
+	(ffecom_transform_equiv_): Remove def of unused static variable.
+	Comment-out use of ffecom_member_phase2_, until problems with
+	back end fixed.
+	(ffecom_push_tempvar): Fix assertion to not crash okay code.
+
+	* com.h: Remove old, commented-out code.
+	Add prototype for warning() in back end.
+
+	* ste.c (ffeste_io_dofio_, ffeste_io_dolio_, ffeste_io_douio_,
+	ffeste_io_icilist_): Check correct type of variable for arrayness.
+
+Sun Jan 29 14:41:42 1995  Dave Love  <d.love@dl.ac.uk>
+
+	* BUGS: Remove references to my configure bugs; add another.
+
+	* runtime/Makefile.in (AR_FLAGS): Provide default value.
+
+	* runtime/f2c.h.in (integer, logical): Take typedefs from
+	F2C_INTEGER configuration parameter again.
+	(NON_UNIX_STDIO): don't define it.
+
+	* runtime/configure.in: Bring type checks for f2c.h in line with
+	com.h.
+	(MISSING_FILE_ELEMS): New variable to determine whether the relevant
+	elements of the FILE struct exist, independent of NON_UNIX_STDIO.
+	* runtime/libI77/{err,wrtfmt,wsfe}.c (MISSING_FILE_ELEMS): Use new
+	parameter.
+
+	* config-lang.in: Comment out more of f2c rules (c.f. Make-lang.in).
+	(This stuff is relevant iff you gave configure --enable-f2c.)
+	Create f/runtime directory tree iff not building in source
+	directory.
+
+	* Makefile.in (srcdir): Append slash so we get the right value when
+	not building in the source directory.  This is a consequence of not
+	building the `f' sources in `f'.
+	(VPATH): Override configure's value for reasons above.
+	(f/proj.h f/conf-proj): New rules to build proj.h by
+	autoconfiguration.
+
+	* proj.h: Rename to proj.h.in for autoconfiguration.
+	* proj.h.in: New as above.
+	* conf-proj conf-proj.in: New files for autoconfiguration.
+
+	* Make-lang.in (include/f2c.h f/runtime/Makefile:): Change the order
+	of setting the sh variables so that the right GCC_FOR_TARGET is
+	used.
+	(f77.*clean:) Add products of new configuration files and make sure
+	all the *clean targets do something (unlike the ones in
+	cp/Make-lange.in).
+
+	* com.h (FFECOM_f2cINTEGER, FFECOM_f2cLOGICAL): Define as long or
+	int appropriately to ensure sizeof(real) == sizeof(integer).
+
+	* PROJECTS: Library section.
+
+	* runtime/libI77/endfile.c: Don't #include sys/types.h conditional
+	on NON_UNIX_STDIO since rawio.h needs size_t.
+	* runtime/libI77/uio.c: #include <sys/types.h> for size_t if not
+	KR_headers.
+
+Wed Jan 25 03:31:51 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.3 released.
+
+	* INSTALL: Revise.
+
+	* Make-lang.in: Comment out rules for building f2c itself (f/f2c/).
+
+	* README: Revise.
+
+	* com.c (ffecom_init_0): Warn if ftnlen or INTEGER not big enough
+	to hold a char *.
+
+	* gbe/2.6.2.diff: Update.
+
+Mon Jan 23 17:10:49 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* TODO: Remove.
+	BUGS: New file.
+	PROJECTS: New file.
+	CREDITS: New file.
+
+	* cktyps*: Remove.
+	Make-lang.in: Remove cktyps stuff.
+	Makefile.in: Remove cktyps stuff.
+
+	* DOC: Add info on changes for 0.5.3.
+
+	* bad.c: Put "warning:" &c on diagnostic messages.
+	Don't output informational messages if warnings disabled.
+
+Thu Jan 19 12:38:13 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* g77.c: Avoid putting out useless "-xnone -xf77" pairs so
+	larger command lines can be accommodated.
+	Recognize both `-xlang' and `-x lang'.
+	Recognize `-xnone' and `-x none' to mean what it does, instead
+	of treating "none" as any other language.
+	Some minor, slight improvements in the way args are handled
+	(hopefully for clearer, more maintainable code), including
+	consistency checks on arg count just in case.
+
+Wed Jan 18 16:41:57 1995  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* DOC: Explain -fautomatic better.
+
+	* INSTALL: Describe libf2c.a better.
+
+	* Make-lang.in, Makefile.in: Build f771 &c with gcc/ as cd instead
+	of gcc/f/ so debugging info is better (source file tracking).
+	Add new source file type.c.
+
+	* Makefile.in: For nextstep3, link f771 with -segaddr __DATA
+	6000000.  Fix typo.  Change deps-kinda target to handle building
+	from gcc/.  Update dependencies.
+
+	* bld-op.def, bld.h, bld.c: Remove opBACKEND and all related
+	stuff.
+	Remove consistency tests that cause compiler warnings.
+
+	* cktyps.c: Remove all typing checking.
+
+	* com-rt.def: Change all rttypeFLOAT_ intrinsics to rttypeDOUBLE_,
+	to precisely match how they're declared in libf2c.
+
+	* com.h, com.c: Revise to more elegantly track related stuff
+	in the version of f2c.h used to build libf2c.
+
+	* com.c: Increase FFECOM_sizeMAXSTACKITEM, and if 0 or undefined
+	when checked to determine where to put entity, treat as infinite.
+	Rewrite temporary mechanism to be based on trees instead of
+	ffeinfo stuff, and make it much simpler.  Change interface
+	accordingly.
+	Fixes to better track types of things, make appropriate
+	conversions, etc.  E.g. when making an arg for a libf2c
+	function, make sure it's of the right type (such as ftnlen).
+	Delete opBACKEND transformation code.
+	(ffecom_init_0): Smoother initialization of types, especially
+	paying attention to using consistent rules for making INTEGER,
+	REAL, DOUBLE PRECISION, etc., and for deciding their "*N"
+	and kind values that will work across all g77 platforms.
+	No longer require per-target configuration info in target.h
+	or config/*/*; use new type module to store size, alignment.
+	(ffecom_member_phase2): Declare COMMON/EQUIVALENCE group members
+	so debugger sees them.
+	(ffecom_finish_progunit): Transform all symbols in program unit,
+	so -g will show they all exist.
+
+	* expr.c (ffeexpr_collapse_substr): Handle strange substring
+	range values.
+
+	* info.h, info.c: Provide connection to new type module.
+	Remove tests that yield compiler warnings.
+
+	* intrin.c (ffeintrin_is_intrinsic): Properly handle deleted
+	intrinsic.
+
+	* lex.c (ffelex_file_fixed): Remove redundant/buggy code.
+
+	* stc.c (ffestc_kindtype_kind_, ffestc_kindtype_star_): Replace
+	boring switch stmt with simple call to new type module.  This
+	sort of thing is a reason to get up in the morning.
+
+	* ste.c: Update to handle new interface for
+	ffecom_push/pop_tempvar.
+	Fixes to better track types of things.
+	Fixes to not crash for certain diagnosed constructs.
+	(ffeste_begin_iterdo_): Check only constants for overflow to avoid
+	spurious diagnostics.
+	Don't convert larger integer (say, INTEGER*8) to canonical integer
+	for iteration count.
+
+	* stw.h: Track DO iteration count temporary variable.
+
+	* symbol.c: Remove consistency tests that cause compiler warnings.
+
+	* target.c (ffetarget_aggregate_info): Replace big switch with
+	little call to new type module.
+	(ffetarget_layout): Remove consistency tests that cause
+	compiler warnings.
+	(ffetarget_convert_character1_typeless): Pick up length of
+	typeless type from new type module.
+
+	* target.h: Crash build if target float bit pattern cannot be
+	precisely determined.
+	Remove all the type cruft now determined by ffecom_init_0
+	at invocation time and maintained in new type module.
+	Put casts on second arg of all REAL_VALUE_TO_TARGET_DOUBLE
+	uses so compiler warnings avoided (requires target float bit
+	pattern to be precisely determined, hence code to crash build).
+
+	* top.c: Add inits/terminates for new type module.
+
+	* type.h, type.c: New module.
+
+	* gbe/2.6.2.diff: Remove all patches to files in gcc/config/
+	directory and its subdirectories.
+
+Mon Jan  9 19:23:25 1995  Dave Love  <d.love@dl.ac.uk>
+
+	* com.h (FFECOM_F2C_INTEGER_TYPE_NODE): Define and use instead of
+	long_integer_type_node where appropriate.
+
+Tue Jan  3 14:56:18 1995  Dave Love  <d.love@dl.ac.uk>
+
+	* com.h: Make ffecom_f2c_logical_type_node long, consistent with
+	integer.
+
+Fri Dec  2 20:07:37 1994  Dave Love  <d.love@dl.ac.uk>
+
+	* config-lang.in (stagestuff): Add f2c conditionally.
+	* Make-lang.in: Add f2c and related targets.
+	* f2c: Add the directory.
+
+Fri Nov 25 22:17:26 1994  Dave Love  <d.love@dl.ac.uk>
+
+	* Makefile.in (FLAGS_TO_PASS): pass $(CROSS)
+	* Make-lang.in: more changes to runtime targets
+
+Thu Nov 24 18:03:21 1994  Dave Love  <d.love@dl.ac.uk>
+
+	* Makefile.in (FLAGS_TO_PASS): define for sub-makes
+
+	* g77.c (main): change f77-cpp-output to f77-cpp-input (.F files)
+
+Wed Nov 23 15:22:53 1994  Dave Love  <d.love@dl.ac.uk>
+
+	* bad.c (ffebad_finish): kluge to fool emacs19 into finding errors:
+	add trailing space to <file>:<line>:
+
+Tue Nov 22 11:30:50 1994  Dave Love  <d.love@dl.ac.uk>
+
+	* runtime/libF77/signal_.c (RETSIGTYPE): added
+
+Mon Nov 21 13:04:13 1994  Dave Love  <d.love@dl.ac.uk>
+
+	* Makefile.in (compiler): add runtime
+
+	* config-lang.in (stagestuff): add libf2c.a to stagestuff
+
+	* Make-lang.in:
+	G77STAGESTUFF <- MORESTAGESTUFF
+	f77-runtime: new target, plus supporting ones
+
+	* runtime: add the directory, containing libI77, libF77 and autoconf
+	stuff
+
+	* g++.1: remove
+
+	* g77.1: minor fixes
+
+Thu Nov 17 15:18:05 1994  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.2 released.
+
+	* bad.def: Modify wording of FFEBAD_UNIMPL_STMT to indicate
+	that it covers a wide array of possible problems (that, someday,
+	should be handled via separate diagnostics).
+
+	* lex.c: Allow $ in identifiers if -fdollar-ok.
+	* top.c: Support -fdollar-ok.
+	* top.h: Support -fdollar-ok.
+	* target.h: Support -fdollar-ok.
+	* DOC: Describe -fdollar-ok.
+
+	* std.c (ffestd_R1229_finish): Fix bug so stand-alone build works.
+	* ste.c (ffeste_R819A): Fix bug so stand-alone build works.
+
+	* Make: Improvements for stand-alone build.
+
+	* Makefile.in: Fix copyright text at top of file.
+
+	* LINK, SRCS, UNLINK: Removed.  Not particularly useful now that
+	g77 sources live in their own subdirectory.
+
+	* g77.c (main): Cast arg to bzero to avoid warning.  (This is
+	identical to Kenner's fix to cp/g++.c.)
+
+	* gbe/: New subdirectory, to contain .diff files for various
+	versions of the GNU CC back end.
+
+	* gbe/README: New file.
+	* gbe/2.6.2.diff: New file.
+
+Tue Nov  8 10:23:10 1994  Dave Love  <d.love@dl.ac.uk>
+
+	* Make-lang.in: don't install as f77 as well as g77 to avoid
+	confusion with system's compiler (especially while testing)
+
+	* g77.c (main): use -lf2c and -lm; fix sense of test for .f/.F files
+
+Fri Oct 28 09:45:00 1994  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.1 released.
+
+	* gcc.c: Invoke f771 instead of f-771.
+
+Fri Oct 28 02:00:44 1994  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Version 0.5.0 released.
+
+Fri Oct 14 15:03:35 1994  Craig Burley  (burley@gnu.ai.mit.edu)
+
+	* Makefile.in: Handle the Fortran-77 front-end in a subdirectory.
+	* f-*: Move Fortran-77 front-end to f/*.