changelog

linux平台中

	* configure.in : Change the configure VC test from
	'test x$ac_cv_prog_CC = xcl;' to 'test x"$ac_cv_prog_CC" = xcl;'
	Email from Joshua R. Poulson.

1999-02-23 Paul Eggert

	Fix porting bug reported by Amakawa Shuhei for SunOS 4.1.4-JL.
	The btowc.c shipped with grep 2.3 is incorrect for Solaris
	2.5.1 and earlier, as it assumes UTF8, which these OSes do not
	support.  Solaris 7 supports btowc, so there's no need to ship
	a substitute for it.  The only questionable case is Solaris
	2.6, which lacks btowc but does support UTF8.  However, 2.6
	supports UTF8 but only as a demonstration (for an English
	locale!); Japanese Solaris 2.6 users typically use EUC, or
	sometimes shift-JIS, but they cannot use UTF8 since Japanese
	UTF8 is not supported.  Hence there's no point to having grep
	substitute a btowc that uses UTF8, as it is either redundant,
	or it will almost invariably have incorrect behavior.

	* configure.in (AC_CHECK_HEADERS): Don't set USE_WCHAR.
	(AC_CHECK_FUNCS): Add btowc, wctype.
	(AC_REPLACE_FUNCS): Don't replace btowc; our replacement is
	invariably doing the wrong thing anyway, at least on SunOS/Solaris.
	Don't bother to check for wctype in -lw, as we don't support
	wide characters on Solaris 2.5.1 or earlier anyway.

	* bootstrap/Makefile.try (OBJS): Remove btowc.$(OBJEXT).

	* src/btowc.c: Removed; no longer needed.

1999-02-19  Paul Eggert

	* NEWS: Fix typo when talking about the old behavior of
	silently skipping directories; it was grep 2.1, not grep 2.2.

1999-02-15 Alain Magloire

	* bootstrap/Makefile.try : add DJGPP DEFS.
	Done by Elie Zaretsckii.

1999-02-14 Alain Magloire

	* m4/gettext.m4 : Guard [] with changequote.
	From Elie Zaretskii.

	* djgpp/config.bat : Makefile.in.in --> Makefile.in-in
	From Elie Zaretskii.

	* src/dosbuf: k&r function parameter.

	* release of 2.3.

1999-02-10 Alain Magloire

	* bootstrap/{Makefile{try,am},REAMDE} : skeleton
	provided for system lacking the tools to autoconfigure.

	* src/{e,f,}grepmat.c: added guard [HAVE_CONFIG_H]

1999-02-10 Alain Magloire

	* PATCHES-AC, PATCHES-AM: updated.

	* m4/regex.m4 : updated.

1999-02-05 Eli Zaretskii

	* m4/gettext.m4 : Support DOS-style D:/foo/bar absolute file
	names.

	* aclocal.m4 (DJGPP) : Use $DJ_GPP instead, since changing the
	latter prevents GCC from finding headers and libraries.

	* djgpp/config.bat: Make building from another directory work

	* djgpp/config.sed: Remove redundant command wich edited path
	separator: now done by configure.

	* src/grep.c [O_BINARY]: Add prototype for undossify_input.

	* doc/grep.texi (Introduction): Typo fixed.

1999-02-03 Alain Magloire

	* grep-2.2f beta release.

1999-02-02 Alain Magloire

	* m4/{djgpp,envsep,glibc,regex,dosfile,isc-posix}.m4 :
	New files to aid configuration and unload configure.in.
	* m4/Makefile.am : updated.
	* src/btowc.c : protect for wchar.h

1999-01-28 Alain Magloire

	* intl/Makefile.in: Replace .o with .${ac_objext} where necessary.
	Work around a limitation of Visual C++ on Cygwin32.
	* acconfig.h configure.in: Define `alloca' as `_alloca' when CC=cl.
	This little hack was suggested by Ian Roxborough <[e-mail]>.
	Patch forwarded by Ben Elliston.

1999-01-28 Alain Magloire

	* PATCHES-AM: New file. A small patch for automake-1.4, use $(sep)
	as the path separator base on @SEP@.
	* PATCHES-AC configure.in : updated for autoconf-13.

1999-01-27 Volker Borchert

	* grep.c: fgrep -NUM not working correctly.
	add the argument number to digit_args_val.

1999-01-22 Paul Eggert

	Prevent grep -r from recursing infinitely through directory loops via
	symbolic links.

	* grep.c (struct stats): New type.
	(stats_base): New var.
	(bufstat): Remove; subsumed by stats->stat.
	(reset, fillbuf, grep, grepdir, grepfile): Pass struct stats * arg,
	for directory loop checking; use this instead of the bufstat global.
	All callers changed.
	(grepfile): Stat the file before invoking grepdir.
	(grepdir): Assume that the argument has already been statted.
	No longer a need for a directory size argument, since it
	can be gotten from the struct stats * argument.
	Check for directory loops.
	Create linked list of directories currently being visited,
	to detect loops.

1998-12-29 Kaveh R. Ghazi

	intl/localealias.c: When building grep-2.2e using cc on Irix4,
	I needed the following patch to intl/localealias.c.
	(Its the same patch used by fileutils-4.0.) The patch resolves
	conflicts between char* and unsigned char* in the i18n code.

1998-12-10 Alain Magloire

	* src/grep.c : Typo in contex -->context
	Noted by  Vladimir Michl.

1998-12-01  Alain Magloire

	* doc/Makefile.am djgpp/Makefile.am m4/Makefile.am vms/Makefile.am:
	New files.

	* m4/progtest.m4: proctect '[]' from m4.
	Noted by Eli Z.

	* PATCHES-AC: New file, add the patch for autoconf in the dist.

	* acconfig.h: (HAVE_DOS_FILENAME)

	* TODO: updated.

	* src/search.c: remove obsolete 'gegrep,ggrep,gnugrep'
	matchers. grep no longer depend on argv[0].

	* grep-2.2e beta to test DJGPP port.

1998-11-28  Paul Eggert

	Various portability enhancements:
	- Don't assume that O_BINARY implies DOS.  Use separate
	macros D_OK (for DOS-like directory access) and
	HAVE_DOS_FILE_NAMES (for DOS-like file names).
	- Don't assume that off_t fits into long; it doesn't on Solaris 2.6.
	- Have is_EISDIR set errno properly on hosts with screwed-up EISDIR.
	- Treat ':' specially in DOS file names only if it's the end of a
	drive specifier.
	- Protect against errno < 0.

	* src/grep.c (is_EISDIR): Move defn to system.h.
	(print_offset_sep): New function.
	(fillbuf): Remove redundant test of O_BINARY.
	(totalcc, totalnl): Now of type off_t.
	(prline): Use print_offset_sep to print file offsets.
	(grepfile): Don't set e to EISDIR; that's is_EISDIR's responsibility
	on machines that don't work properly with EISDIR.
	(grepdir): Don't assume ':' means slash on all DOS filenames;
	it means it only in the file prefix.

	* src/system.h (strerror): Check for negative error numbers.
	(is_EISDIR): Depend on D_OK, not O_BINARY.
	(SET_BINARY): Depend on HAVE_SETMODE, not __DJGPP__.
	(IS_SLASH, FILESYSTEM_PREFIX_LEN): Depend on HAVE_DOS_FILE_NAMES,
	not O_BINARY.
	(CHAR_BIT): New macro.

	* src/dosbuf.c (struct dos_map):
	pos and add members are now of type off_t.
	(dos_stripped_crs): Now of type off_t.
	(dossified_pos): Now accepts arg and returns value of type off_t.

	* configure.in (AC_CHECK_FUNCS): Add setmode.
	(HAVE_DOS_FILENAMES): New macro

1998-11-27  Eli Zaretskii

	* djgpp/config.sed: New file, a Sed script to edit configure
	script before running it on DOS/Windows.
	* djgpp/config.bat: Updated to handle po2tbl.sed.in and
	po/Makefile.in.in on DOS filesystems, and to run config.sed.

1998-11-24  Jim Meyering

	* src/grep.c : Typo s/infalid/invalid/
	Also noted by Stanislav Brabec.

1998-11-24  Eli Zaretskii

	* doc/grep.texi: I found and corrected several typos.
	I believe the GNU standards require the section that describes the
	options to the programs to be called ``Invoking'' or ``Invoking
	<program-name>''.  This is so users and programs can easily find
	that node in any Info file.  So I changed the name of the
	`Options' chapter to `Invoking', and corrected the
	cross-references accordingly.
	I added some markup to things like file names and options.
	I added some additional index entries where that seemed useful.
	I also corrected some index entries, such as "@cindex [:alnum:]",
	which used a colon in them (the colons confuse Info readers).

1998-11-24  Alain Magloire

	* grep/doc/grep.texi : -h is not use for help.
	Nit spotted by Jim Meyering.

1998-11-23  Alain Magloire

	* doc: New directory, grep.1, {e,f}grep.man move here
	* doc/grep.texi: New info manual
	* doc/version.texi: New
	* doc/Makefile.am: New
	* tests/{ere,bre}.*: New files. The spencer2 test is split
	in two ere/bre.
	* config.hin: New, config.h.in rename to config.hin for OS
	with limited file system aka DOS.

	* grep-2.2d release for beta.

1998-11-18  Alain Magloire

	* src/regex.[ch] : Updated from GLibc, previous patches were
	integrate by Ulrich Drepper and some added ones.

1998-11-16  Paul Eggert

	* grep.h (__attribute__): New macro, if not GCC.
	(fatal): Add __attribute__((noreturn)).
	* grep.c (usage): Add __attribute__((noreturn)).

1998-11-16  Paul Eggert

	Remove memory leak with valloced buffers, by invoking malloc instead.

	* configure.in (AC_CHECK_FUNCS), src/system.h (valloc): Remove.
	* src/grep.c (page_alloc): New function.
	(ubuffer, pagesize): New vars.
	(ALIGN_TO): New macro.
	(reset): Initialize new vars.  Check for overflow in buffer size calc.
	Use page_alloc instead of valloc.
	(fillbuf): Likewise.  Use memcpy to copy saved area.

1998-11-15  Paul Eggert

	* dfa.c (dfacomp), search.c (EGexecute): Don't assume char is unsigned.

1998-11-14  Paul Eggert

	* src/grep.c (grepdir): Fix bug: memory freed twice.

	* src/search.c (Gcompile, Ecompile): Don't invoke dfainit,
	since dfacomp does it for us, and if we also do it then we
	leak memory.

1998-11-13  Eli Zaretskii

	* djgpp/config.bat: Rewrite to run the configure script via Bash.
	* djgpp/config.site, djgpp/getconf: New files.
	* djgpp/config.h, djgpp/*.mak, djgpp/po2tbl.sed: Remove.
	* djgpp/README: Update instructions.

	* Makefile.am (EXTRA_DIST): Update the list of DJGPP files.

	* src/system.h (IS_SLASH): New macro.
	(is_EISDIR): Define it here for DOS and Windows.

	* src/grep.c (main) [O_BINARY]: Set stdout to binary mode, so the
	EOL formats of the input and output files match, unless stdout is
	the console device.
	(is_EISDIR): Don't define if already defined.  Accept a second
	argument, the file name; all callers changed.
	(grepdir): Don't free `file', inside the loop.  Use IS_SLASH to
	check whether `dir' needs a slash.
	(grepfile): If file is a directory, set e to EISDIR.

1998-11-10  Alain Magloire

	* src/vms_fab.{c,h}: New file for VMS wildcard expansion
	Written by Phillip C. Brisco.

	* vms/make.com : add line to compile vms_fab.c and
	{e,f,}grepmat.c with link for each grep/fgrep/egrep.
	Base on patch send by Phillib C. Brisco.

1998-11-09  Alain Magloire

	* grep-2.2c on alpha for testing.

1998-11-09  Paul Eggert

	* src/grep.1: Fix `Last Change' of output by generating the date
	from the RCS Id.

	* src/grep.c (is_EISDIR): New macro.
	(grep): If -s, suppress errors from trying to read directories.
	(grepfile): Use is_EISDIR to simplify code.
	(grepdir): If -s, suppress errors from trying to read directories.

	* src/grep.1: Fix -q -r -s problems; describe BSD grep better.

	* src/grep.c (main): Update copyright.

	Specify default matcher with default_matcher extern var, not
	DEFAULT_MATCHER macro.  This is more straightforward and means
	we need to compile grep.c just once.

	* src/egrepmat.c, src/fgrepmat.c, src/grepmat.c: New files.

	* src/Makefile.am (base_sources): New macro.
	(egrep_SOURCES, fgrep_SOURCES, grep_SOURCES): Now consist of
	$(base_sources) plus the single tailoring file.
	(grep_LDADD, egrep_LDADD, fgrep_LDADD): Remove.
	(EXTRA_DIST): Remove grep.c, regex.c.
	(fgrep.o, egrep.o): Remove.

	* src/grep.h (matcher): Now char const *.
	(default_matcher): New decl.

	* src/grep.c (matcher): Now char const *.
	(setmatcher): Now accepts char const *.
	(main): Default the matcher from default_matcher (linked externally)
	rather than DEFAULT_MATCHER (a macro).

1998-11-08 Alain Magloire

	* src/grep.1: `prep.ai.mit.edu' should be replaced with `gnu.org'.
	Nit from Paul Eggert.

1998-11-06 Alain Magloire

	* src/grep.c: The Matcher is not set to argv[0] but
	explicitly by a #define MATCHER at compile time default is "grep".

	* aclocal/: NEW dir. provides our own *.m4

	* configure.in: Move Paul's Large Files to AC_LFS.(aclocal/lfs.m4)
	Taken from Jim Meyering fileutils.

1998-11-05 Alain Magloire

	* src/grep.1: update the man pages according to the
	changes make by Miles.

	* po/*.po: updated.

	* first beta release for 2.3 (2.2a).

1998-11-04 Miles Bader

	* src/grep.c (main): Rationalize interaction of -C/-NUM/-A/-B
	options, and allow -C to hav