1999-08-25 13:51 -0700 Jim Meyering <meyering@ascend.com>
* cpplib.c (detect_if_not_defined): New function.
(do_if): Use it to detect potential once-only headers.
From-SVN: r28877
Wed Aug 4 13:29:23 1999 Zack Weinberg <zack@bitmover.com>
* cpphash.c (macroexpand): Delete leading whitespace when arg
is concatenated before.
(unsafe_chars): Correct test for whether + and - can extend a
token.
* cppinit.c (cpp_start_read): Do dependencies for
-include/-imacros files also.
* cpplib.c (cpp_scan_buffer): In no-output mode, don't bother
tokenizing non-directive lines.
(cpp_expand_to_buffer): Temporarily disable no-output mode.
* cppmain.c: In no-output mode, just call cpp_scan_buffer for
the input file.
From-SVN: r28512
1999-04-26 19:16 -0400 Zack Weinberg <zack@rabi.columbia.edu>
* cpphash.c (dump_definition): New function.
* cpphash.h: Prototype it.
* cpplib.c (handle_directive): Don't output anything here.
Streamline.
(pass_thru_directive): Take a length, not a pointer to the
end. All callers changed.
(do_define): Handle -dD, -dN, -g3 entirely here. Streamline.
(do_include): Handle -dI here.
(do_ident): Correct to match cccp.
(do_pragma): Copy the pragma through here.
(do_assert, do_unassert): Tidy.
* cppinit.c (cpp_finish): If -dM was specified, walk the macro
hash table and call dump_definition on all the entries.
* cppmain.c: cpp_finish may produce output.
From-SVN: r26659
1999-04-19 14:51 -0400 Zack Weinberg <zack@rabi.columbia.edu>
* cpplib.c (output_line_command): Drop CONDITIONAL argument.
We can omit unnecessary line commands if file_change ==
same_file and pfile->lineno != 0. All callers changed.
(cpp_get_token [case '\n']): Don't bump pfile->lineno if
CPP_OPTIONS (pfile)->no_line_commands is set.
* cpplib.h: Fix prototype of output_line_command.
From-SVN: r26547
1999-04-14 12:37 -0400 Zack Weinberg <zack@rabi.columbia.edu>
* cpperror.c, cppexp.c, cpplib.c: Never call abort.
* cpphash.c: Only call abort when we detect corruption of the
malloc arena.
* cppmain.c: Don't define fatal or fancy_abort.
From-SVN: r26442
1999-04-12 14:55 -0400 Zack Weinberg <zack@rabi.columbia.edu>
* cpphash.c (collect_expansion, macroexpand,
push_macro_expansion): Make the escape character in macro
buffers '\r', not '@'. Remove code to protect literal
occurences of the escape character; '\r' cannot appear
in a macro buffer unless we put it there.
* cpplib.c (skip_comment, copy_comment, cpp_skip_hspace,
copy_rest_of_line, cpp_get_token, parse_string,
parse_assertion): '\r' might be a backslash-newline marker, or
it might be a macro escape marker, depending on
CPP_BUFFER (pfile)->has_escapes. '@' is not a special
character.
* cpplib.h: Update commentary.
From-SVN: r26371
* cccp.c (create_definition): Cast to U_CHAR* when assigning to one.
* cppfiles.c (read_and_prescan): Likewise.
Start a #define in column 0.
* cpplib.c (cpp_define): Cast to U_CHAR* when assigning to one.
(cpp_push_buffer): Likewise for cpp_buffer*.
(do_include): Change the type of `fbeg' and `fend' to unsigned char*.
(do_endif): Cast to char* when assigning to one.
(do_assert): Likewise.
(do_unassert): Likewise.
(cpp_read_check_assertion): Change the type of `name' to U_CHAR*.
Don't do unnecessary cast to char* anymore.
* genrecog.c (make_insn_sequence): Cast to char** when assigning
to one. Cast the first argument of bzero to PTR.
* loop.c (strength_reduce): Remove unused variable `note'.
* reload1.c (new_insn_chain): Cast to struct insn_chain* when
assigning to one.
* rtl.c (copy_rtx): Use memcpy instead of bcopy.
From-SVN: r25860
1999-03-16 16:06 -0500 Zack Weinberg <zack@rabi.columbia.edu>
* cppfiles.c (read_and_prescan): Map backslash-newline to '\r'
(which cannot otherwise appear in the processed buffer) and
move it out of tokens that it appears in the middle of.
Improve performance.
(find_position): New function.
* cpplib.c: \r (one character) indicates backslash
newline, not \\\n (two characters). It cannot appear in the
middle of a token. Call CPP_BUMP_LINE (pfile) whenever
parsing moves past \n or \r. Increment pfile->lineno whenever
a \n is placed into token_buffer. Only one mark can exist at
a time, and CPP_BUMP_LINE must not be used while it is
active. It is automatically cleared by cpp_pop_buffer and
parse_goto_mark. \r is not in is_hor_space or is_space.
(NEWLINE_FIX, NEWLINE_FIX1, adjust_position,
update_position, count_newlines, parse_move_mark): Removed.
(parse_string, copy_comment): New functions.
(parse_name): Returns void.
(parse_set_mark, parse_clear_mark, parse_goto_mark): Take only
one argument, a cpp_reader *. Change for new marking scheme.
(skip_comment): Handle CHILL line comments too. Second
argument is now first character of comment marker; all callers
changed. Issue error for unterminated block comment here.
(cpp_skip_hspace): Recognize CHILL comments.
(copy_rest_of_line): Likewise. Call skip_comment and
parse_string directly, don't go through cpp_get_token. Emit
"/**/" for block comments if -traditional (create_definition
needs this).
(do_define): Don't play with put_out_comments.
(cpp_push_buffer): Initialize ->mark to -1.
(cpp_buf_line_and_col): Just read out the values in the buffer
structure.
(output_line_command): Use cpp_buf_line_and_col. Fix
formatting. Remove stale code.
(cpp_get_token): Break out string parsing code to
parse_string. Use skip_comment for CHILL comments too. Use
copy_comment for put_out_comments instead of dinking with
marks. Remove stale code. Don't call output_line_command
unless it's necessary.
* cpplib.h (parse_marker): Removed.
(struct cpp_buffer): line_base is now a unsigned char *; add
`mark' [long], remove `marks' [struct parse_marker *].
(parse_set_mark, parse_clear_mark, parse_goto_mark): Update
prototypes.
(CPP_BUMP_LINE, CPP_BUMP_BUFFER_LINE): New macros.
* cppinit.c (is_hor_space, is_space): '\r' is not considered
whitespace.
* cppexp.c (cpp_parse_expression): Use cpp_skip_hspace, not
SKIP_WHITE_SPACE.
* cpphash.c (macarg): Disable line commands while expanding.
From-SVN: r25802
1999-03-15 21:39 -0500 Zack Weinberg <zack@rabi.columbia.edu>
* cppinit.c: Instead of one pending list, keep separate lists
for each category of pending option: -D/-U, -A, -include,
-imacros. Move the four partial include-path lists into the
pending block. Use head and tail pointers so we don't ever
have to reverse the lists.
(cpp_start_read): Break out blocks of code to their own
functions: install_predefs and initialize_dependency_output.
Use path_include for C_INCLUDE_PATH and friends as well as
CPATH. Remove include_defaults gunk. Warn about the
combination of -lang-chill and -trigraphs. Optimize string
bashing. Walk each pending list once, deallocating as we go.
(append_include_chain): Brought over from cppfiles.c. Mark
dirs as system include dirs if and only if appending to
system include path. If opts->verbose, print a notice when a
dir is dropped from the include path because it doesn't
exist. Fix memory leak: this function is not supposed to copy
its DIR argument.
(nreverse_pending, push_pending): Removed.
(APPEND): New macro for adding to pending lists.
(path_include): Can now add to any partial include path.
(base_name): Bring over from cccp.c.
(cpp_options_init): Allocate the pending block.
(cpp_handle_option): Add --version. Exit after --help. Fix
formatting. Order -ifoo options by frequency of usage.
(install_predefs): New function, simplified version of code
that was in cpp_start_read.
(initialize_dependency_output): Likewise. Understand OBJECT_SUFFIX.
* cppfiles.c (simplify_pathname): Export.
(merge_include_chains): Don't nreverse the lists. If
opts->verbose, print a notice when a duplicate dir is detected
and dropped from the include path.
(finclude): Fix excessive cleverness in setting
fp->system_header_p.
(actual_directory): Set x->sysp from
CPP_BUFFER (pfile)->system_header_p so that one system header
may include another with "".
(deps_output): Fix double adjustment of deps_size which would
cause all dependencies after the first two lines to be lost.
* cpplib.c (cpp_unassert): New function.
* cpplib.h: Lay out struct cpp_pending here. Adjust
prototypes. Add include_prefix_len to struct cpp_options.
From-SVN: r25793
1999-02-25 17:14 -0500 Zack Weinberg <zack@rabi.columbia.edu>
* cpphash.c (install): Rename to cpp_install, add cpp_reader*
first argument. All callers changed.
(hashtab): Removed.
(cpp_lookup, cpp_install): Change all refs to hashtab to
pfile->hashtab.
(cpp_hash_cleanup): Removed.
* cpphash.h: Adjust prototypes.
* cpplib.h (struct cpp_reader): Add hashtab pointer.
* cppinit.c (cpp_reader_init): Also allocate space for the
hashtab.
(cpp_cleanup): Delete all macros and free the hashtab.
From-SVN: r25441
1999-02-15 16:59 -0500 Zack Weinberg <zack@midnite.ec.rhno.columbia.edu>
* c-common.c (UNGETC [USE_CPPLIB=1]): Do nothing if c is EOF.
* c-lex.c: Likewise.
* cpplib.c (cpp_push_buffer, cpp_pop_buffer): Use a linked
list in malloced memory for the buffer stack.
(cpp_get_token): Don't pop the last buffer off the stack.
Calls after CPP_EOF has been returned produce CPP_EOF with no
state change.
(cpp_finish): Pop last buffer here.
(do_line): Don't free ip->last_nominal_fname if it is equal to
ip->fname.
(special_symbol): If a T_CONST is the empty string, push a
single `@ ' escape instead.
(macroexpand): Special symbol buffers have escapes too.
* cpplib.h (struct cpp_buffer): Remove unused fields, add prev
buffer pointer.
(struct cpp_reader): Remove buffer_stack. Add
buffer_stack_depth.
(CPP_PREV_BUFFER, CPP_NULL_BUFFER): Buffer stack is now a
linked list.
From-SVN: r25218
* cpplib.c (special_symbol): Move IP to be declared in function
scope, rather than individual case statements.
fixes building under solaris
From-SVN: r25112
1999-02-08 23:25 -0500 Zack Weinberg <zack@midnite.ec.rhno.columbia.edu>
* cpplib.c (special_symbol): Rewrite. Don't copy things
multiple times. Handle __STDC__ specially. T_CONST
indicates a constant /string/. Don't handle T_*_TYPE and
T_SPEC_DEFINED. Use cpp_buf_line_and_col instead of
adjust_position. Determine the file buffer only if needed.
(initialize_builtins): Handle __SIZE_TYPE__,
__PTRDIFF_TYPE__, __WCHAR_TYPE__, __USER_LABEL_PREFIX__, and
__REGISTER_PREFIX__ with T_CONST special hashtab entries.
Don't provide __OBJC__; the driver does that. Provide
__STDC_VERSION__, using T_CONST. Use T_STDC for
__STDC__. Give install the length of all symbols defined.
(eval_if_expression): Drop code to insert and remove the
"defined" special symbol.
* cpplib.h: Remove SELF_DIR_DUMMY (no longer used). Remove
T_*_TYPE and T_SPEC_DEFINED from enum node_type; add T_STDC.
* cpphash.c (install): Drop the `ivalue' parameter. Constify
the `value' parameter. All callers changed.
* cpphash.h (install): Change prototype to match.
(union hashval): Remove `ival' member.
* cppexp.c (cpp_lex): Handle `defined' here.
From-SVN: r25097
1999-01-26 12:11 -0500 Zack Weinberg <zack@midnite.ec.rhno.columbia.edu>
* cppfiles.c (safe_read): Deleted.
(read_and_prescan): New function, replaces safe_read, converts
and/or warns about trigraphs, silently converts odd line
terminators (\r, \n\r, \r\n). Warns about no newline at EOF.
(finclude): Use read_and_prescan; turn off nonblocking mode on
the input descriptor; remove file-size-examination and
no-newline-at-EOF gunk which is longer necessary; be more
careful about checking that we've been handed a legitimate
file to read (only real files, pipes, and ttys are acceptable).
* cpplib.h (cpp_options): Rename no_trigraphs flag to
`trigraphs' and invert its sense.
(trigraph_table): Declare.
(cpp_warning_with_line): Prototype.
* cpplib.c: Remove all references to trigraph_pcp. Define
trigraph_table; initialize it in initialize_char_syntax. Open
files in nonblocking mode. s/no_trigraphs/trigraphs/
throughout, and invert sense. Put cpp_warning_with_line back
in and export it.
From-SVN: r24870
1999-01-25 14:10 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpplib.c: Don't include signal.h, sys/times.h, or
sys/resource.h. Don't declare localtime.
(macroexpand): Handle special symbols here.
(push_macro_expansion): Chop off the trailing '@ ' if possible
here.
(cpp_get_token): Don't do either of the above two things here.
Move `string' label just after case '"' so that wide strings
don't crash the preprocessor.
From-SVN: r24858
* Makefile.in (gcc.o, prefix.o, cccp.o, cpplib.o): Depend on prefix.h.
* cccp.c: Include prefix.h, don't prototype prefix.c functions.
(new_include_prefix): Constify char* parameters.
* cppfiles.c (read_name_map): Likewise.
(append_include_chain): Likewise. Also, use a writable char* copy
of parameter `dir' which we then modify, rather than using the
parameter itself to store the new writable string.
(remap_filename): Constify some variables. Also, use a writable
char* to store an allocated string which we will be modifying.
* cpplib.c: Include prefix.h, don't prototype prefix.c functions.
(cpp_start_read): Constify variable `str'.
* cpplib.h (append_include_chain): Constify a char* parameter.
* gcc.c Include prefix.h, don't prototype prefix.c functions.
(add_prefix, save_string): Constify char* parameters.
(fatal, error): Add ATTRIBUTE_PRINTF_1 to prototypes.
* prefix.c: Include prefix.h.
(get_key_value, translate_name, save_string, update_path,
set_std_prefix): Constify various char* parameters and variables.
(save_string): Use xmalloc, not malloc.
(translate_name): Use a writable temporary variable to create and
modify a string before setting it to a const char*.
* prefix.h: New file to prototype functions exported from prefix.c.
From-SVN: r24498
1998-12-21 18:03 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpplib.c (skip_if_group): Split out the logic that handles
directive recognition to its own function. Don't use
parse markers; use a bare pointer into the buffer. Use
copy/skip_rest_of_line instead of doing it by hand. Remove
`return on any directive' mode which was never used, and take
only one argument.
(consider_directive_while_skipping): New function, subroutine
of skip_if_group. Logic streamlined a bit.
(conditional_skip, do_elif, do_else): Call skip_if_group with
only one argument.
From-SVN: r24485
Wed Dec 23 17:30:18 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpplib.c (do_undef): EOF immediately after '#undef FOO' is not an
error.
From-SVN: r24484
1998-12-16 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpplib.c (do_include): Treat #include_next in the
primary source file as #include plus warning. Treat
#include_next in a file included by absolute path as an
error. fp == CPP_NULL_BUFFER is a fatal inconsistency.
From-SVN: r24340
1998-12-14 00:56 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpplib.c: Make all directive handlers read their own
arguments.
(struct directive): Remove last two arguments from FUNC
member prototype. Remove `command_reads_line' member
entirely.
(directive_table): Remove initializations of
command_reads_line flag. Pretty-print.
(eval_if_expression, do_define, do_line, do_include,
do_undef, do_error, do_pragma, do_ident, do_if, do_xifdef,
do_else, do_elif, do_sccs, do_assert, do_unassert,
do_warning): Take only two args.
(cpp_define): Call do_define with two args and the text to
define stuffed into a buffer.
(make_assertion): Call do_assert with two args.
(handle_directive): Call do_line with two args. Call
kt->func with two args. Remove command_reads_line
processing.
(do_define, do_undef, do_error, do_warning, do_pragma,
do_sccs): Read the rest of the line here.
(do_ident): Gobble rest of line, as cccp does.
(cpp_undef): New function.
(cpp_start_read): Call cpp_undef instead of do_undef.
From-SVN: r24326
1998-12-15 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpphash.h (union hash_value): Remove `keydef' member, add a
`struct hashnode *aschain' member for #assert.
* cpplib.c (struct tokenlist_list, struct
assertion_hashnode): Delete structure definitions.
(assertion_install, assertion_lookup, delete_assertion,
check_assertion, compare_token_lists, reverse_token_list,
read_token_list, free_token_list): Delete functions.
(parse_assertion): New function.
(cpp_cleanup): Don't destroy the assertion_hashtable.
(do_assert): Gut and rewrite. #assert foo (bar) places
entries for `#foo' and `#foo(bar)' in the macro hash table,
type T_ASSERT. The value union's `aschain' member is used
to chain all answers for a given predicate together.
(do_unassert): Also rewritten. Take an un-asserted
answer off the chain from its predicate and call
delete_macro on the hashnode, or walk a predicate chain
calling delete_macro on all the entries.
(cpp_read_check_assertion): Simply call parse_assertion to
get the canonical assertion name, and look that up in the
hash table.
* cpplib.h (ASSERTION_HASHNODE,ASSERTION_HASHSIZE,assertion_hashtab):
Removed.
* cpphash.c (install): Use bcopy instead of an explicit loop
to copy the macro name.
* cppexp.c (cpp_lex): Convert the result of
cpp_read_check_assertion to a `struct operation' directly;
don't go through parse_number.
From-SVN: r24325
1998-12-07 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpplib.c (initialize_char_syntax): Use ISALPHA and ISALNUM
so it'll work on non-ASCII platforms. Always consider $ an
identifier character. Take no arguments.
(cpp_reader_init): Call initialize_char_syntax with no
arguments.
(cpp_start_read): Don't call initialize_char_syntax again.
Clear is_idchar['$'] and is_idstart['$'] if not
opts->dollars_in_ident.
* cpplib.h (struct cpp_reader): Replace void *data element by
cpp_options *opts. Rearrange elements to make gdb printout
less annoying (put buffer stack at end).
(CPP_OPTIONS): Get rid of now-unnecessary cast.
* cppmain.c: s/data/opts/ when initializing cpp_reader
structure.
* c-decl.c: Likewise.
* objc/objc-act.c: Likewise.
* fix-header.c: Likewise.
From-SVN: r24154
1998-11-26 01:17 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpplib.h (struct cpp_buffer): Replace dir and dlen members
with a struct file_name_list pointer.
(struct cpp_reader): Add pointer to chain of `actual
directory' include searchpath entries.
(struct file_name_list): Add *alloc pointer for the sake of
the actual-directory chain.
Move definition of HOST_WIDE_INT here.
(cpp_parse_escape): Change prototype to match changes in
cppexp.c.
* cppfiles.c (actual_directory): New function.
(finclude): Use it to initialize the buffer's actual_dir
entry.
(find_include_file): We don't need to fix up max_include_len
here.
* cpplib.c (do_include): Don't allocate a file_name_list on
the fly for current directory "" includes, use the one that's
been preallocated in pfile->buffer->actual_dir. Hoist out
duplicate code from the search_start selection logic.
(cpp_reader_init): Initialize pfile->actual_dirs.
Remove definition of HOST_WIDE_INT. Change calls
to cpp_parse_escape to match changes in cppexp.c (note
hardcoded MASK, which is safe since this is the source
character set).
* cppexp.c: Bring over changes to cpp_parse_escape from cccp.c
to handle wide character constants in #if directives. The
function now returns a HOST_WIDE_INT, and takes a third
argument which is a binary mask for all legal values (0x00ff
for 8-bit `char', 0xffff for 16-bit `wchar_t', etc.) Define
MAX_CHAR_TYPE_MASK and MAX_WCHAR_TYPE_MASK. Change callers of
cpp_parse_escape to match. [Fixes c-torture/execute/widechar-1.c]
From-SVN: r24153
Mon Dec 7 15:38:25 1998 Dave Brolley <brolley@cygnus.com>
* gcc.c (default_compilers): Fix typo in USE_CPPLIB spec for cc1.
Mon Dec 7 15:38:25 1998 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* c-aux-info.c (concat): Wrap function definition in !USE_CPPLIB.
* cppalloc.c: Move function `xcalloc' from cpplib.c to here.
* cpplib.c: Move function `xcalloc' from here to cppalloc.c.
From-SVN: r24152
Wed Nov 25 14:54:46 1998 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpplib.h: Delete struct import_file. Add ihash element to
struct cpp_buffer. Delete dont_repeat_files and
import_hash_table elements from cpp_reader; change
all_include_files to a hash table. Delete all foobar_include
/ last_foobar_include elements from struct cpp_options; put
back four such: quote_include, bracket_include,
system_include, after_include. Redo struct file_name_list
completely. Add new structure type include_hash. Add
prototypes for merge_include_chains and include_hash. Change
prototypes for finclude, find_include_file, and
append_include_chain to match changes below.
* cppfiles.c (simplify_pathname, include_hash,
remap_filename, merge_include_chains): New functions.
(add_import, lookup_import, open_include_file): Removed.
(INO_T_EQ): Define this (copied from cccp.c).
(hack_vms_include_specification): Remove all calls and #if 0
out the definition. It was being called incorrectly and at
the wrong times. Until a VMSie can look at this, it's better
to not pretend to support it.
(append_include_chain): Change calling convention; now takes
only one directory at a time, and sets up the data structure
itself.
(redundant_include_p): Rewritten - this is now used for all
include redundancy, whether by #ifndef, #import, or #pragma
once. Looks up things in the include hash table.
(file_cleanup): Decrement pfile->system_include_depth here if
it's >0.
(find_include_file): Calling convention changed; now passes
around a struct include_hash instead of 3 separate parameters.
Guts ripped out and replaced with new include_hash mechanism.
(finclude): Calling convention changed as for
find_include_file. Error exits pulled out-of-line. Reformat.
(safe_read): Return a long, not an int.
(deps_output): Don't recurse.
* cpplib.c (is_system_include): Deleted.
(path_include): Fix up call to append_include_chain.
(do_include): Fix up calls to find_include_file and finclude.
Clean up dependency output a bit. Shorten obnoxiously lengthy
#import warning message. Don't decrement
pfile->system_include_depth here.
(do_pragma): Understand the include_hash structure. Reformat.
(do_endif): Correct handling of control macros. Understand
the include_hash.
(cpp_start_read): Fix up calls to finclude. Call
merge_include_chains.
(cpp_handle_option): Fix up calls to append_include_chain.
Understand the four partial include chains.
(cpp_finish): Add debugging code (#if 0-ed out) for the
include_hash.
(cpp_cleanup): Free the include_hash, not the import hash and
the all_include and dont_repeat lists which no longer exist.
From-SVN: r23857
1998-10-28 16:10 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
* c-lang.c: Declare extern char *yy_cur if USE_CPPLIB.
(lang_init): Call check_newline always.
* c-lex.c (init_parse) [USE_CPPLIB=1]: After calling
cpp_start_read, set yy_cur and yy_lim to read from
parse_in.token_buffer, so that we'll see the first #line
directive.
* cpplib.c (cpp_start_read): finclude the main input file
before processing -include/-imacros. Process -imacros and
-include separately, and handle -include by stacking a
buffer for the file in question as if it'd been #included.
* toplev.c (documented_lang_options) Recognize -H when
USE_CPPLIB is on.
1998-10-28 16:09 -0500 Zack Weinberg <zack@rabi.phys.columbia.edu>
* cpplib.c: Merge do_once into do_pragma. Break file handling
code out of do_include.
Move append_include_chain, deps_output,
file_cleanup, redundant_include_p, import_hash,
lookup_import, add_import, read_filename_string, read_name_map,
open_include_file, finclude, safe_read to cppfiles.c.
Move prototypes for deps_output, append_include_chain,
finclude to cpplib.h. Move definition of struct
file_name_list there also.
* cppfiles.c: New file. Contains all the above functions
broken out of cpplib.c; also hack_vms_include_specification
from cccp.c and find_include_file, a new function broken out of
do_include.
* Makefile.in (cppmain): Depend on cppfiles.o.
(fix-header): Likewise.
(cppfiles.o): New target.
* configure.in (--enable-c-cpplib): Add cppfiles.o to
extra_c_objs. Add ../cppfiles.o to extra_cxx_objs.
From-SVN: r23424
* Makefile.in (cc1): Put C_OBJS, and thence @extra_c_objs@ last.
(LIBCPP_OBJS): New. Add cppulp.o.
(cppmain, fix-header): Depend on and use libcpp.a.
* configure.in (extra_c_objs, extra_cxx_objs): Use libcpp.a instead
of the individual object files.
* objc/Make-lang.in (cc1obj): Put OBJC_OBJS, and thence @extra_c_objs@,
last.
* cccp.c (user_label_prefix): New.
(main): Set it off -f*leading-underscore.
(special_symbol): Use it.
* cpplib.c (special_symbol): Likewise.
(cpp_handle_option): Handle -f*leading-underscore.
* cppulp.c: New file.
* output.h (user_label_prefix): Declare it.
* dwarf2out.c (ASM_NAME_TO_STRING): Prepend user_label_prefix.
* toplev.c (f_options, main): Handle -f*leading-underscore.
* defaults.h (ASM_OUTPUT_LABELREF): Use asm_fprintf instead of
referencing USER_LABEL_PREFIX directly.
* config/nextstep.h (ASM_OUTPUT_LABELREF): Likewise.
* m32r/m32r.h (ASM_OUTPUT_LABELREF): Likewise.
* final.c (asm_fprintf): Use user_label_prefix instead.
* arm/thumb.c (thumb_print_operand): Likewise.
* gcc.c (default_compilers): Pass -f*leading-underscore on to
cpp wherever appropriate.
From-SVN: r23415
* Makefile.in (flow.o): Depend on recog.h.
* cpplib.h (directive_table): Add missing initializiers.
(finclude): Change type of variable `bsize' to size_t.
* cse.c (rtx_cost): Mark parameter `outer_code' with ATTRIBUTE_UNUSED.
* dwarfout.h (dwarfout_label): Wrap prototype in macro RTX_CODE.
* fix-header.c (lookup_std_proto): Cast the result of `strlen' to
`int' when comparing against one.
(cpp_file_line_for_message): Mark parameter `pfile' with
ATTRIBUTE_UNUSED.
(cpp_fatal): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
* flow.c: Include recog.h.
(sbitmap_copy): Cast arguments 1 & 2 of `bcopy' to (PTR).
* function.c (thread_prologue_and_epilogue_insns): Mark parameter
`f' with ATTRIBUTE_UNUSED.
(reposition_prologue_and_epilogue_notes): Likewise.
* genopinit.c (gen_insn): Cast argument of ctype functions to
`unsigned char'.
* haifa-sched.c: Include recog.h.
(blockage_range): Cast result of UNIT_BLOCKED macro to (int) when
comparing against one.
* libgcc2.a (__throw): Revert ATTRIBUTE_UNUSED change for now.
* mips-tfile.c (parse_end): Cast the argument of ctype function to
`unsigned char'.
(parse_ent): Likewise.
(parse_input): Likewise.
* optabs.c (init_libfuncs): Likewise.
* protoize.c (find_rightmost_formals_list): Likewise.
* recog.h (const_double_operand): Fix typo in prototype.
* tlink.c (scan_linker_output): Cast the argument of ctype
function to `unsigned char'.
* toplev.c (check_lang_option): Cast the result of `strlen' to
`int' when comparing against one.
From-SVN: r23155
Fri Oct 16 17:26:10 1998 Dave Brolley <brolley@cygnus.com>
* cpplib.c (cpp_get_token): Replace whitespace that occurs between
a macro name and the next token with a single blank if that whitespace
is in a macro buffer and the next token is not '('.
From-SVN: r23139
* cppexp.c: When forcing unsigned comparisons, cast both sides
of the operation.
* cpphash.h: Move static declaration of hashtab[]...
* cpphash.c: ...here.
* cpplib.c: Cast difference of two pointers to size_t before
comparing it to size_t. Cast signed to unsigned
before comparing to size_t. (FIXME: struct argdata should use
unsigned buffer sizes.)
* cpplib.h (struct cpp_reader): Declare token_buffer_size as
unsigned int. (CPP_WRITTEN): Cast return value to size_t.
(CPP_RESERVE): Parenthesize N for evaluation order, cast to
size_t before comparison.
From-SVN: r22980
* cpplib.c (macroexpand): If arg->raw_before or
arg->raw_after, remove any no-reexpansion escape at the
beginning of the pasted token. Correct handling of whitespace
markers and no-reexpand markers at the end if arg->raw_after.
From-SVN: r22695
* toplev.c (documented_lang_options): Recognize -include,
-imacros, -iwithprefix, -iwithprefixbefore.
* cpplib.c (cpp_start_read): Process -imacros and -include
switches at the same time and in command-line order, after
initializing the dependency-output code. Emit properly nested
#line directives for them. Emit a #line for the main file
before processing these switches, and don't do it again
afterward.
From-SVN: r22689
* cpplib.c (cpp_options_init): Initialize cplusplus_comments to 1,
matching July 18, 1995 change to cccp.c. If -traditional then
disable cplusplus_comments.
Co-Authored-By: Jeffrey A Law <law@cygnus.com>
From-SVN: r20960
* Makefile.in (fix-header): Don't needlessly depend on cpperror.o.
* alias.c (CHECK_ALIAS_SETS_FOR_CONSISTENCY): Cast expansion to
void since it is evaluated in a comma list.
* mips.h (ASM_GENERATE_INTERNAL_LABEL): Always sprintf `NUM'
argument as a long and cast `NUM' to long to ensure it is of the
proper width. Wrap macro arguments in parens when they appear in
the expansion.
* sol2.h (ASM_GENERATE_INTERNAL_LABEL): Likewise.
* sparc.h (ASM_GENERATE_INTERNAL_LABEL): Likewise.
(ASM_DECLARE_RESULT): Fix fprintf format specifier to match
function argument return type.
(REGNO_OK_FOR_INDEX_P, REGNO_OK_FOR_BASE_P, REGNO_OK_FOR_FP_P,
REGNO_OK_FOR_CCFP_P): Use `(unsigned)' not `U'.
* cpplib.c (cpp_message_from_errno): Remove unneeded argument to
cpp_message.
* dbxout.c: Fix the comments after an #endif to reflect the actual
condition tested in the preceding #if.
* except.c (find_all_handler_type_matches): Switch to old-style
function definition.
* expr.c (expand_builtin): Remove unused variable `type' twice.
* gbl-ctors.h (DO_GLOBAL_CTORS_BODY): Cast -1 before comparing it
to an unsigned long.
* haifa-sched.c (print_insn_chain): Remove unused function.
* objc/objc-act.c (build_msg_pool_reference): Hide prototype and
definition.
* toplev.c: When testing whether to include dbxout.h, also include
it when XCOFF_DEBUGGING_INFO is defined.
* unroll.c (unroll_loop): Add parentheses around assignment used
as truth value.
From-SVN: r20801
Wed Jun 10 13:07:02 1998 Dave Brolley <brolley@cygnus.com>
* objc/objc-act.c: Add cpplib declarations.
(lang_decode_option): Initialize cpplib if necessary.
(lang_decode_option): New argc/argv interface.
* tree.h (lang_decode_option): New argc/argv interface.
* toplev.c (lang_options): Add cpp options.
(main): New interface for lang_decode_option.
* gcc.c (default_compilers): Don't call cpp for a cpplib-enabled C compiler
unless -E, -M or -MM is specified.
* cpplib.h (cpp_handle_option): New function.
* cpplib.c (cpp_handle_option): New function.
(cpp_handle_options): Now calls cpp_handle_option.
* c-tree.h (c_decode_option): New argc/argv interface.
* c-lex.c (init_parse): cpplib now initialized in c_decode_option.
* c-lang.c (lang_decode_option): New argc/argv interface.
* c-decl.c: Add cpplib declarations.
(c_decode_option): New argc/argv interface.
(c_decode_option): Call cpp_handle_option.
(c_decode_option): Now returns number of strings processed.
From-SVN: r20407
* Makefile.in (c-lang.o): Depend on c-tree.h, c-lex.h and toplev.h.
(c-lex.o): Depend on output.h.
(c-common.o): Likewise.
(stmt.o): Likewise.
(calls.o): Likewise.
(integrate.o): Depend on toplev.h.
(regclass.o): Depend on output.h.
(final.o): Depend on reload.h.
* c-common.c: Include output.h.
(check_format_info): Remove unused variable `integral_format'.
* c-decl.c (print_lang_decl): Mark parameters `file', `node' and
`indent' with ATTRIBUTE_UNUSED.
(print_lang_type): Likewise.
(maybe_build_cleanup): Likewise for parameter `decl'.
(copy_lang_decl): Likewise for parameter `node'.
* c-lang.c: Include c-tree.h, c-lex.h and toplev.h.
(lang_print_xnode): Mark parameters `file', `node' and `indent'
with ATTRIBUTE_UNUSED.
(lookup_interface): Likewise for parameter `arg'.
(is_class_name): Likewise.
(maybe_objc_check_decl): Likewise for parameter `decl'.
(maybe_objc_comptypes): Likewise for parameters `lhs', `rhs' and
`reflexive'.
(maybe_objc_method_name): Likewise for parameter `decl'.
(build_objc_string): Likewise for parameters `len' and `str'.
* c-lex.c: Include output.h.
* c-lex.h (position_after_white_space): Correct typo in prototype.
* c-tree.h (finish_file, c_expand_start_cond, c_expand_start_else,
c_expand_end_cond, init_iterators): Add prototypes.
* caller-save.c (set_reg_live): Mark parameters `reg' and `setter'
with ATTRIBUTE_UNUSED.
* calls.c: Include output.h.
* cccp.c (pipe_closed): Mark parameter `signo' with
ATTRIBUTE_UNUSED.
* combine.c: Move inclusion of expr.h to after insn-config.h.
* iris6.h (ASM_IDENTIFY_GCC, ASM_IDENTIFY_LANGUAGE): Don't define
as empty, rather define as ((void)0).
* sparc.c (sparc_check_64): Add braces around ambiguous `else'.
Add parentheses around assignment used as truth value.
* cplus-dem.c (squangle_mop_up): Change return type to void.
(internal_cplus_demangle): Remove unused parameter `options'.
All callers changed.
(cplus_demangle_opname): Remove function wide variable `int i' and
replace with `size_t i' at each location where it is used.
(cplus_demangle_opname): change type of `i' from int to size_t.
* cppexp.c (right_shift): Mark parameter `pfile' with
ATTRIBUTE_UNUSED.
* cpphash.c (cpp_lookup): Likewise.
(cpp_hash_cleanup): Likewise.
* cpplib.c (parse_name): Add a prototype and make it static.
(null_underflow): Mark parameter `pfile' with ATTRIBUTE_UNUSED.
(null_cleanup): Likewise for parameters `pbuf' and `pfile'.
(macro_cleanup): Likewise for parameter `pfile'.
(file_cleanup): Likewise.
* cpplib.h (cpp_reader_init, cpp_options_init, cpp_start_read,
cpp_read_check_assertion, skip_rest_of_line): Add prototypes.
* crtstuff.c (force_to_data, __CTOR_LIST__, force_to_data,
__DTOR_END__, __FRAME_END__): Mark with ATTRIBUTE_UNUSED.
* cse.c (cse_check_loop_start): Mark parameter `set' with
ATTRIBUTE_UNUSED.
* dbxout.c (flag_minimal_debug, have_used_extensions,
source_label_number): Move inside macro wrapper check against
defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO).
* dwarf2out.c (gen_entry_point_die): Hide prototype and definition.
* except.h (doing_eh): Provide prototype.
* expr.c: Move inclusion of expr.h to after insn-config.h.
* final.c: Include reload.h.
(shorten_branches): Cast the first argument of bzero to char *.
* fix-header.c (cpp_print_containing_files): Mark parameter
`pfile' with ATTRIBUTE_UNUSED.
(cpp_fatal): Likewise.
* flow.c (find_basic_blocks_1): Cast the first argument of bzero
to char *.
* genattrtab.c (make_length_attrs): Change the type of variable
`i' from int to size_t.
(zero_fn): Mark parameter `exp' with ATTRIBUTE_UNUSED.
(one_fn): Likewise.
* genextract.c (main): When generating insn-extract.c, mark
variable `junk' with ATTRIBUTE_UNUSED.
* gengenrtl.c (gencode): When generating genrtl.c, cast the first
argument of bzero to char*.
* integrate.c: Include toplev.h.
* libgcc2.c: Wrap `struct exception_table' and
`find_exception_handler' in macro DWARF2_UNWIND_INFO.
* objc/Make-lang.in (objc-act.o): Depend on toplev.h.
* objc/objc-act.c: Include toplev.h.
(lang_print_xnode): Mark parameters `file', `node' and `indent'
with ATTRIBUTE_UNUSED.
(finish_protocol): Likewise for parameter `protocol'.
* output.h (declare_weak): Add prototype.
(decode_reg_name): Don't wrap with TREE_CODE macro.
(assemble_alias): Add prototype.
* regclass.c: Include output.h.
* reload.h (reloads_conflict): Add prototype.
* rtl.h (print_rtl_single, mark_elimiation, reg_class_subset_p,
output_func_start_profiler): Add prototypes.
* rtlanal.c (reg_set_p_1): Mark parameters `x' and `pat' with
ATTRIBUTE_UNUSED.
* scan-decls.c: Include scan.h.
* scan.h (recognized_function, recognized_extern): Add prototypes.
* stmt.c: Include output.h.
* toplev.c (error_for_asm, warning_for_asm): Remove prototypes.
(output_lang_identify): Hide prototype and definition.
(float_signal): Mark parameter `signo' with ATTRIBUTE_UNUSED.
(pipe_closed): Likewise.
* toplev.h (count_error, strip_off_ending, error_for_asm,
warning_for_asm): Add prototypes.
From-SVN: r19712
Consolidate O_RDONLY/O_WRONLY fallback definitions from various files
into system.h.
* system.h: Wrap time.h and sys/file.h in autoconf checks.
Provide default definitions for O_RDONLY and O_WRONLY here.
* cccp.c, cpplib.c, fix-header.c, gcc.c, protoize.c: Not here.
From-SVN: r19571
d
* c-lex.c: Include <stdlib.h> and <string.h>/<strings.h>. Add
prototype for `handle_sysv_pragma', and make it static. Add
parentheses around assignment used as truth value.
* combine.c (combine_instructions): Protect variable `prev' with
macro HAVE_cc0.
(can_combine_p): Protect variable `link' with AUTO_INC_DEC.
(extract_left_shift): Add parentheses around operand of &.
(merge_outer_ops): Avoid an empty body in an else-statement.
(gen_rtx_combine): Remove unused variable `i'.
* sparc/gmon-sol2.c: Include <fcntl.h>. Make return type of
function monstartup `void'. Likewise for internal_mcount. Add
`static void' prototype for moncontrol. Reconcile sprintf format
vs. args.
* sparc/sparc.c: Include <stdlib.h> and <string.h>/<strings.h>.
Make return type of function_arg_slotno explicitly `int'.
(reg_unused_after): Add parentheses around assignment used as
truth value.
(save_regs): Add explicit braces to avoid ambiguous `else'.
(function_arg_slotno): Add parentheses around && within ||.
(function_arg_pass_by_reference): Likewise.
(sparc_flat_output_function_prologue): Reconcile fprintf format
vs. args.
* svr4.h (ASM_OUTPUT_LIMITED_STRING): Add parentheses around
assignment used as truth value.
* cplus-dem.c: Include <stdlib.h>.
(demangle_signature): Avoid an empty body in an else-statement.
(do_type): Remove unused variable `lvl'.
* cppexp.c: Don't have <stdlib.h> depend on MULTIBYTE_CHARS.
Include <string.h>/<strings.h>.
(cpp_lex): Remove unused variable `namelen'.
(cpp_lex): Explicitly declare `num_chars' as an int.
* cpplib.c: Avoid duplicate inclusion of <stdlib.h>, include
<unistd.h> instead. Explicitly declare is_system_include
returning int.
(make_assertion): Remove unused variable `kt'.
(cpp_expand_to_buffer): Hide variable `obuf'.
(output_line_command): Remove unused variables, `line_end',
`line_cmd_buf' and `len'.
(macarg): Remove unused variable `arg_start'.
(special_symbol): Remove unused variable `i'. Add parentheses
around assignment used as truth value.
(do_include): Remove unused variables `pcfname' and `retried',
hide `pcf' and `pcfbuflimit'.
(do_line): Remove unused variable `i'.
(finclude): Hide variable `missing_newline'.
(cpp_handle_options): Remove unused variable `j'.
(read_token_list): Remove unused variable `eofp'.
(cpp_error_with_line): Remove unused variable `i'.
(cpp_warning_with_line): Likewise.
(cpp_pedwarn_with_line): Explicitly declare `column' as int.
(cpp_error_from_errno): Remove unused variable `i'.
* cse.c (invalidate): Add parentheses around assignment used as
truth value.
(find_best_addr): Move declaration of variable `our_cost' inside
the conditional macro where its used.
(fold_rtx): Avoid an empty body in an if-statement.
(cse_insn): Wrap variables `this_insn_cc0_mode' and
`this_insn_cc0' in macro HAVE_cc0.
* dwarf2out.c: Include <stdlib.h> and <string.h>/<string.h>.
(ASM_OUTPUT_DWARF_DATA8): Reconcile format vs. args in fprintf's.
(output_uleb128): Likewise.
(output_sleb128): Likewise.
(output_cfi): Likewise.
(output_call_frame_info): Remove unused variables `j', `fde_size'
and `fde_pad'.
(comp_unit_has_inlines): Hide declaration as per rest of file.
(size_of_line_prolog): Correct typo in prototype.
(add_arange): Likewise.
(output_aranges): Likewise.
(add_name_and_src_coords_attributes): Likewise.
(gen_array_type_die): Likewise.
(gen_inlined_subroutine_die): Likewise.
(equate_decl_number_to_die): Remove unused variable `i'.
(print_die): Reconcile format vs. args in fprintf's.
(print_dwarf_line_table): Likewise.
(output_die): Likewise.
(output_line_info): Likewise.
(add_subscript_info): Avoid an empty body in an else-statement.
(gen_subprogram_die): Remove unused variable `fp_loc'.
* dwarfout.c: Explicitly declare `next_pubname_number' as int.
Protect `ordering_attribute' prototype with USE_ORDERING_ATTRIBUTE
macro. Protect `src_coords_attribute' prototype with
DWARF_DECL_COORDINATES macro. Hide `output_entry_point_die'
prototype as in the rest of the file. Likewise for
`output_pointer_type_die' and `output_reference_type_die'. Remove
prototype for `type_of_for_scope'.
(output_unsigned_leb128): Reconcile format vs. args in fprintf.
(type_attribute): Add explicit braces to avoid ambiguous `else'.
* final.c: Include <stdlib.h> and <string.h>/<strings.h>.
(shorten_branches): Protect declaration of tmp_length with
SHORTEN_WITH_ADJUST_INSN_LENGTH and ADJUST_INSN_LENGTH macros.
(profile_function): Protect declaration of `sval' and `cxt'
variables with appropriate macros.
(final_scan_insn): Likewise for `note' variable. Add explicit
braces to avoid empty body in an if-statement.
(output_asm_insn): Move variable `i' inside macro conditional
where it is used. Add parentheses around assignment used as truth
value.
(asm_fprintf) Likewise, likewise.
* fix-header.c (main): Remove unused variable `done'. Protect
declaration of `i' with FIXPROTO_IGNORE_LIST.
* pexecute.c: Include <unistd.h>. Prototype `my_strerror'.
* print-rtl.c (print_inline_rtx): Explicitly declare the parameter
`ind'.
* profile.c: Include <string.h>/<strings.h>.
(instrument_arcs): Remove unused variables `note', `inverted',
`zero' and `neg_one'.
(branch_prob): Avoid empty body in an if-statement.
* regclass.c: Include <stdlib.h>.
(reg_alternate_class): Explicitly declare parameter `regno'.
* regmove.c (regmove_optimize): Remove unused variable `p'. Add
parentheses around assignment used as truth value.
(find_matches): Remove unused variables `output_operand' and
`matching_operand'.
(fixup_match_1): Remove statement with no effect: "if (0) ;".
* scan.c (sstring_append): Explicitly declare `count' as int.
(scan_string): Explicitly declare parameter `init' as int.
* sched.c: Include <stdlib.h>.
(BLOCKAGE_RANGE): Add parentheses around arithmetic in operand of |.
(rank_for_schedule): Add parentheses around assignment used as
truth value.
(schedule_block): Likewise.
(regno_use_in): Likewise.
(schedule_insns): Remove unused variable `i'.
* toplev.c: Include <stdlib.h> and <string.h>/<strings.h>.
(v_message_with_decl): Remove unused variable `n'.
(botch): Explicitly declare parameter `s' as char *.
(main): Add parentheses around assignment used as truth value.
* tree.c (make_node): Protect the variable `kind' with the
GATHER_STATISTICS macro.
(real_value_from_int_cst): Move variable `e' inside conditional
macro area where it is used.
(tree_last): Add parentheses around assignment used as truth value.
(build1): Protect the variable `kind' with the GATHER_STATISTICS
macro.
(print_obstack_statistics): Reconcile format vs. args in fprintf.
Protect variables `i', `total_nodes', and `total_bytes' with the
GATHER_STATISTICS macro.
Lots more -W -Wall warnings disappear.
From-SVN: r17518
* cccp.c, cpplib.c (compare_defs):
Don't complain about arg name respellings unless pedantic.
* cpplib.c (compare_defs): Accept pfile as new arg.
All callers changed.
Bring over from the FSF.
From-SVN: r16474
(do_include): Diagnose #import and #include_next if pedantic and if
not in a system header.
(do_warning): #warning now causes an error if -pedantic-errors is
given; this is needed since #warning isn't ANSI.
From-SVN: r13887
(unsafe_chars): `p' is unsafe before `-' or `+', since it
might generate a C9X-style hexadecimal floating-point number.
(cpp_handle_options): Set c89 option to 1 if -lang-c89.
From-SVN: r13749
(macroexpand): Delete any no-reexpansion marker that follows an
identifier at the beginning of an argument that is concatenated with
what precedes it.
From-SVN: r13356
* cpplib.c (xcalloc): From from cppalloc.c.
* cpplib.c (cpp_push_buffer): If recursion too deap, return NULL
rather than exiting with fatal.
(make_assertion, cpp_expand_to_buffer, push_macro_expansion,
do_include, cpp_start_rea): Handle NULL return from cpp_push_buffer.
(output_line_command): Update position even if no_output.
(parse_clear_mark): Use fatal instead of abort.
From-SVN: r12207
* cpplib.c (init_parse_option): Renamed to cpp_options_init.
(push_parse_file): Renamed to ...
(cpp_start_read): Change to return 1 on success, 0 on failure.
(init_parse_file): Renamed to cpp_reader_init.
* cpplib.c (cpp_start_read, cpp_handle_options, cpp_finish,
parse_goto_mark, parse_move_mark): Use cpp_fatal rather than fatal.
* cpplib.c (newline_fix): Remove unused function.
From-SVN: r12202
* cpplib.h, cpplib.c: Remove support for !STATIC_BUFFERS.
* cpplib.c (special_symbol, do_once, do_include, cpp_get_token):
Compare cpp_buffer against CPP_NULL_BUFFER, not NULL.
* cpplib.c (dump_special_to_buffer): New function.
(initialize_builtins): Use it.
From-SVN: r12170
* cpplib.c (line_for_error): Make it work; add extra parameter.
(skip_quoted_string, cpp_get_token): Update calls to line_for_error.
(macroexpand): Remember initial line so we can report it if the
call is unterminated. Also, simplify error logic slightly.
(do_include): Cast alloca return value, to avoid pcc warning.
From-SVN: r9635
* cpplib.c: Rename make_definition to cpp_define.
* cpplib.c (special_symbol): For T_SPECLINE, calculate __LINE__
in enclosing file buffer, not current buffer (if macro expanding).
(cpp_get_token): Fix thinko (in code for chopping unneeded space).
From-SVN: r9403
* cpplib.c (SELF_DIR_DUMMY): New macro.
(do_include): Don't pass searchptr to finclude if it is dsp,
since that is on the stack, and would cause a dangling pointer.
If handling #include_next, recognize SELF_DIR_DUMMY.
From-SVN: r9320
