changelog.2

autoconf是一个产生可以自动配置源代码包

2000-12-13  Pavel Roskin  <[e-mail]>

	* m4sugar.m4 (m4_file_append): Add a newline after _m4eof,
	otherwise _m4eof is appended to the output on FreeBSD 4.0.
	* tests/atgeneral.m4 (AT_INIT): Avoid using unbalanced "y"
	in sed, use "s" instead.
	* tests/mktests.sh: Don't use \? in sed - it's a GNU extension.
	Use separate patterns for A[CU]_DEFUN and AC_DEFUN_ONCE.

2000-12-13  Akim Demaille  <[e-mail]>

	EXEEXT and OBJEXT don't need to know $CYGWIN etc.

	* acspecific.m4 (AC_EXEEXT, AC_OBJEXT, _AC_EXEEXT, _AC_OBJEXT):
	Move as...
	* aclang.m4 (AC_EXEEXT, AC_OBJEXT, _AC_COMPILER_EXEEXT)
	(_AC_COMPILER_OBJEXT): these.
	(_AC_COMPILER_EXEEXT): Use _AC_LINK_IFELSE.
	Don't depend upon $CYGWIN and the like.
	(_AC_COMPILER_OBJEXT): Model after _AC_COMPILER_EXEEXT.
	Skip more extensions.
	Use _AC_COMPILE_IFELSE.

2000-12-12  Pavel Roskin  <[e-mail]>

	* Makefile.am: Don't use suffix rules for perl and shell
	scripts. Use explicit rules instead.

2000-12-12  Pavel Roskin  <[e-mail]>

	* autoscan.pl (init_tables): Allow spaces on the right hand side
	in autoscan tables. Die if there are no spaces at all.
	(scan_c_file): Use \b instead of \W so that keywords match at
	the beginning and the end of the line.
	(scan_sh_file): Likewise.
	(scan_makefile): Likewise. Use \B to match before `-l'.
	(output): Suggest AC_CONFIG_HEADER if any C/C++ sources are
	found.
	* acidentifiers: Update macros for structure members st_blksize
	and st_rdev.

2000-12-12  Akim Demaille  <[e-mail]>

	* tests/compile.at (GNU Fortran 77): Be robust to compilers that
	choke on `--version'.

2000-12-12  Akim Demaille  <[e-mail]>

	* tests/suite.at: Run `tools.at' first.

2000-12-12  Akim Demaille  <[e-mail]>

	* tests/aclocal.m4 (AC_STATE_SAVE): Use a more precise regexp to
	keep envvars.

2000-12-12  Akim Demaille  <[e-mail]>

	AS_ERROR was not properly saving data in the log file.

	* sh.m4 (AS_WARN, AS_ERROR): Use AS_MESSAGE.
	(_AS_ECHO): Fix quotation.
	(AS_MESSAGE): Use `as_me'.
	* acgeneral.m4: More banners in the log.
	(_AC_INIT_DEFAULTS): Compute as_me before using it.

2000-12-08  Akim Demaille  <[e-mail]>

	* doc/autoconf.texi (System Services) <AC_PATH_XTRA>: Adjust the
	documentation about X_DISPLAY_MISSING to the code.

2000-12-07  Akim Demaille  <[e-mail]>

	* tests/atgeneral.m4 (AT_INIT): More robust computation of
	ac_tests_pattern.
	Reported by  Andrej Borsenkow.

2000-12-07  Akim Demaille  <[e-mail]>

	* acspecific.m4 (_AC_EXEEXT): Skip *.pdb.
	From Paul Berrevoets.

2000-12-07  Akim Demaille  <[e-mail]>

	* tests/atgeneral.m4 (AT_CHECK): Bad typo: assign `exit 1' to
	at_continue if something failed, not `:'.
	* tests/semantics.at (AC_PATH_XTRA): New.
	* acspecific.m4 (_AC_PATH_X): New, extracted form AC_PATH_X.

2000-12-06  Akim Demaille  <[e-mail]>

	* configure.in: Bump version to 2.49c.

2000-12-06  Akim Demaille  <[e-mail]>

	Version 2.49b.

2000-12-06  Akim Demaille  <[e-mail]>

	Stop playing with FDs in Autotest.

	* tests/atgeneral.m4 (AT_INIT): Set up FD 5.
	(AT_CHECK): Instead of using exec to globally change the FDs of
	`testsuite', enclose the body of the test into a
	`(..) >stdout 2>stderr'.
	In every case, when verbose, display the differences between
	expected and observed (stdout, stderr, exit status).
	Let `0' be the default for EXIT-STATUS.
	Support EXIT-STATUS == `ignore'.

2000-12-06  Akim Demaille  <[e-mail]>

	* tests/tools.at (autoconf: forbidden tokens): Adjust expected
	result.

2000-12-06  Akim Demaille  <[e-mail]>

	* man/config.guess.x: New file.
	* man/config.sub.x: New file.

2000-12-06  Akim Demaille  <[e-mail]>

	* tests/aclocal.m4 (AT_STATE_SAVE): Don't even try to preserve
	egrep error messages, AT_CHECK will find them.

2000-12-06  Akim Demaille  <[e-mail]>

	* doc/autoconf.texi (Limitations of Usual Tools) <awk>: `for' on
	arrays is nondeterministic across AWK implementations.
	* tests/tools.at (autoconf: forbidden tokens): Sort the error
	message to guarantee its uniqueness.

2000-12-06  Akim Demaille  <[e-mail]>

	The SunOS' egrep fails to process properly the `egrep' invocations
	of the test suite.

	* tests/aclocal.m4 (AC_STATE_SAVE): If egrep fails, remove the
	output file.
	* tests/atspecific.m4 (_AT_CHECK_AC_MACRO): Don't check `state-*'
	if the files are not present.

	* m4sugar.m4 (m4_join): Rename as...
	(m4_smash): this.
	* tests/aclocal.m4 (join): Move as...
	* m4sugar.m4 (m4_flatten): this.
	* autoconf.sh (trace.m4): Rename m4_smash as m4_flatten.

2000-12-06  Akim Demaille  <[e-mail]>

	* autoconf.sh (task trace): s/m4/$M4/.
	* autoheader.sh: When loading trace.sh, catch errors and exit with
	a decent error message.
	* tests/tools.at: Be sure to test autoconf --trace before
	autoheader.

2000-12-06  Akim Demaille  <[e-mail]>

	* tests/atgeneral.m4 (AT_CHECK): Fix the m4_ifval invocation.

2000-12-06  Akim Demaille  <[e-mail]>

	* aclang.m4 (AC_LANG): Be `smart': don't issue the sh code if the
	current language did not change.
	(AC_LANG_ASSERT): New.
	(AC_PROG_CPP, AC_PROG_CXXCPP): Assert the language.
	(_AC_PROG_F77_V, _AC_F77_NAME_MANGLING): Don't require
	AC_PROG_F77, the code you include does it.
	(AC_F77_LIBRARY_LDFLAGS): Set the language.

2000-12-06  Akim Demaille  <[e-mail]>

	* m4sugar.m4 (ifelse): Rename as...
	(m4_if): this.
	* autoconf.m4 (ifelse): Restore.

2000-12-06  Akim Demaille  <[e-mail]>

	* m4sugar.m4 (m4_dquote, m4_pattern_forbid, m4_pattern_allow)
	(m4_cr_letters, m4_cr_LETTERS, m4_cr_Letters, m4_cr_digits)
	(m4_cr_symbols1, m4_cr_symbols2, m4_re_string, m4_re_word)
	(m4_init): New macros.
	(m4_token_allow): Remove.
	* acgeneral.m4: Don't push BODY into the diversion stack.
	(AC_PLAIN_SCRIPT): Do it.
	Call m4_init, define the Autoconf patterns.
	(AC_INIT): Use AC_PLAIN_SCRIPT.
	Remove the useless `dnl' (those where the current diversion is
	KILL).
	* autoconf.sh (m4_common): Fix quotation.
	(finalize.awk): Load forbidden.rx and allowed.rx.
	Split the line into tokens, and check their validity.
	* tests/tools.at (Forbidden tokens): Adjust.

2000-12-05  Bob Wilson  <[e-mail]>

	* acspecific.m4 (_AC_OBJEXT, _AC_EXEEXT): Ignore .d files produced
	by CFLAGS=-MD.

2000-12-05  Akim Demaille  <[e-mail]>

	* aclang.m4 (AC_PROG_F77): Temporarily set ac_ext to F to run
	_AC_LANG_COMPILER_GNU.
	From Steven G. Johnson.
	* tests/compile.at (GNU Fortran 77): New test.

2000-12-05  Akim Demaille  <[e-mail]>

	* tests/tools.at (autoupdate): Strengthen and check autoupdate's
	idempotency.

2000-12-05  Akim Demaille  <[e-mail]>

	* tests/atspecific.m4 (_AT_CHECK_AC_MACRO): s/cp -f/mv -f/.

2000-12-01  Pavel Roskin  <[e-mail]>

	* acgeneral.m4 (_AC_OUTPUT_CONFIG_STATUS): Don't escape
	backquotes in AC_MSG_ERROR. Fix error message.

2000-12-01  Pavel Roskin  <[e-mail]>

	* tests/atgeneral.m4 (AT_INIT): Use ${CONFIG_SHELL-/bin/sh}
	to run the testsuite from the debug scripts.
	Suggested by Alexandre Oliva.

2000-11-30  Akim Demaille  <[e-mail]>

	* doc/autoconf.texi (Assignments): Don't use $? from an
	assignment.

2000-11-30  Akim Demaille  <[e-mail]>

	* sh.m4 (AS_EXIT): Don't rely on false exiting 1.
	Actually, always use `(exit $val); exit', don't try to be tricky.
	* doc/autoconf.texi (Limitations of Builtins) <false>: new.

2000-11-30  Akim Demaille  <[e-mail]>

	* sh.m4 (_AS_EXPR_PREPARE): Don't rely on the exit status of a
	back quote evaluation since the very system for which the test was
	written does not propagate it.  Groumph!

2000-11-30  Akim Demaille  <[e-mail]>

	* acspecific.m4 (_AC_EXEEXT): Also remove conftest$ac_exeext.
	Reported by Pavel.

2000-11-30  Akim Demaille  <[e-mail]>

	* acspecific.m4 (_AC_EXEEXT, _AC_OBJEXT): Make the two macros more
	alike: a loop over a sorted list of possible files.
	Don't cleanup on errors, the trap will do it.
	Cleanup when there are no errors.
	(_AC_EXEEXT): Use the empty string instead of `no' as the cached
	value.
	Be sure to prefer `.exe' to `' when the two are observable.
	Suggested by Lars and Earnie.

2000-11-30  Akim Demaille  <[e-mail]>

	When using Cygwin, in spite of all their efforts, it may happen
	that `confestval' be read in binary mode.  The shell then fails to
	properly strip the \r\n.
	Reported by Lars J. Aas.

	* aclang.m4 (AC_LANG_INT_SAVE): Don't add any trailing new line,
	and close the file.
	Suggested by Peter Eisentraut.

2000-11-30  Akim Demaille  <[e-mail]>

	* doc/autoconf.texi (Systemology): New section.
	Some about QNX 4.

2000-11-30  Akim Demaille  <[e-mail]>

	* doc/autoconf.texi (Special Shell Variables): Document RANDOM.

2000-11-30  Akim Demaille  <[e-mail]>

	* doc/autoconf.texi (Limitations of Usual Tools): Some about cp
	and mv, thanks to Ian.

2000-11-29  Akim Demaille  <[e-mail]>

	* acspecific.m4 (_AC_OBJEXT): Skip *.tds, special case .o and
	.obj.
	Suggested by Lars.

2000-11-29  Akim Demaille  <[e-mail]>

	* acgeneral.m4 (_AC_OUTPUT_CONFIG_STATUS): Fix the portability of
	the default assignment of CONFIG_FILES, CONFIG_HEADERS,
	CONFIG_LINKS and CONFIG_COMMANDS.

2000-11-29  Akim Demaille  <[e-mail]>

	* acgeneral.m4 (AC_CACHE_SAVE): Use the `clear' trick to work
	around broken seds.
	(_AC_OUTPUT_HEADERS, _AC_OUTPUT_FILES): Rename the sed labels to
	match the Autoconf documentation.

2000-11-29  Akim Demaille  <[e-mail]>

	* doc/autoconf.texi (Shell Substitutions): More on the variations
	around ${foo=bar}.
	(Assignments): Rewrite as a summary of the previous section.
	* acgeneral.m4 (AC_CACHE_SAVE): Be protected against the Solaris'
	`${foo='${bar}'}' bug.

2000-11-29  Akim Demaille  <[e-mail]>

	* acgeneral.m4 (_AC_OUTPUT_HEADERS, _AC_OUTPUT_FILES): Don't use
	   `... echo "error: \\\`$f'" ...`
	as it's not portable to BSDI 1.3.
	Do this instead:
	   `... echo "error: $f" ...`
	Reported by Daniele Arena.

2000-11-29  Akim Demaille  <[e-mail]>

	QNX 4.2.5's expr always exits 1 when `:' is used with parens.

	* doc/autoconf.texi (Limitations of Usual Tools) <expr>: More
	information, thanks to Paul Berrevoets, Paul Eggert and David
	Morgan.
	* sh.m4 (_AS_EXPR_PREPARE): New.
	(AS_DIRNAME): Use it.

2000-11-29  Akim Demaille  <[e-mail]>

	sizeof (struct {char a,b; }) is not required to be 2.
	Reported by Johan Danielsson.

	* tests/semantics.at (AC_CHECK_SIZEOF): Define charchar as an
	array of 2 chars.
	Suggested by Alexandre.

2000-11-29  Akim Demaille  <[e-mail]>

	Provide a means to display banners in the test suite.

	* tests/atgeneral.m4 (AT_INIT): Initialize `AT_banner_ordinal'.
	Execute the epilogue of the tests only if a test was run.
	Don't build the value of `at_tests_all' with a for loop: expand
	`AT_TESTS_ALL'.
	(AT_SETUP): Build `AT_TESTS_ALL'.
	(AT_BANNER): New.
	Adjust all the former banners to use it.
	(AT_CHECK): Don't trace the decoding of `$?'.

2000-11-29  Akim Demaille  <[e-mail]>

	* tests/atgeneral.m4 (AT_DEFINE, AT_UNDEFINE, AT_SHIFT)
	(AT_INCLUDE): Remove, use the m4_ macros.

2000-11-29  Akim Demaille  <[e-mail]>

	* m4sugar.m4 (ifval, ifset, ifdef, ifndef, m4_ifvanl): Rename as...
	(m4_ifval, m4_ifset, m4_ifdef, m4_ifndef, m4_ifvaln): this.
	(m4_n): New macro.
	(m4_ifvaln): Use it.
	* autoconf.m4 (ifdef): Restore it.

2000-11-29  Akim Demaille  <[e-mail]>

	* m4sugar.m4 (m4_errprint, divnum, errprint, esyscmd): Rename as...
	(m4_errprintn, m4_divnum, m4_errprint, m4_esyscmd): this.
	* autoconf.m4: Restore them.

2000-11-28  Pavel Roskin  <[e-mail]>

	* doc/autoconf.texi (Fortran 77 Compiler Characteristics):
	Don't suggest obsolete AC_LANG_FORTRAN77.
	(Language Choice): Better preamble.

2000-11-28  Pavel Roskin  <[e-mail]>

	* doc/install.texi: Minor changes to eliminate TeX warnings.
	* doc/autoconf.texi: Likewise. Typo fixes.

2000-11-23  Akim Demaille  <[e-mail]>

	* tests/atconfig.in: Move code into...
	* tests/atgeneral.m4 (AT_INIT): here.
	Use AS_SHELL_SANITIZE.

2000-11-23  Akim Demaille  <[e-mail]>

	Have the test suite list of the test groups and their references.

	* tests/atgeneral.m4 (_m4_divert(SUITE_PRO)): Remove, replaced
	by...
	(_m4_divert(DEFAULT), _m4_divert(OPTIONS), _m4_divert(HELP))
	(_m4_divert(SETUP)): these.
	(_m4_divert(SUITE_EPI)): Rename as...
	(_m4_divert(TAIL)): this.
	(AT_INIT): Adjust to the new diversions.
	Insert the magic number.
	Accept test groups as cli argument.
	List the test groups.
	Rename TESTS, test, and tests as at_tests_all, at_test, and
	at_tests.
	Have the debug scripts pass options to test suite.
	Remove their banner.
	* tests/atspecific.m4: Don't divert to 0.
	* suite.at: Don't insert the magic number.

2000-11-23  Akim Demaille  <a