changelog

这是一个自动生成MAKEFILE的工具。在LINUX工程项目里是很好的帮手。希望对大家有点帮助。

	* configure : New configure generated by autoconf.
	* Makefile.in : Set SHELL=@SHELL@. configure now substiutes
	${CONFIG_SHELL-/bin/sh} in for @SHELL@ at configure time.

Mon Aug 11 01:40:37 1997  Jason Molenda  <[e-mail]>

	* acspecific (AC_FUNC_VFORK): If cross-compiling, set
	$ac_cv_func_vfork_works to $ac_cv_func_vfork (assume vfork works
	if present).

Tue Aug  5 23:00:05 1997  Ian Lance Taylor  <[e-mail]>

	* acgeneral.m4 (AC_VERSION): Set to 2.12.1.
	(AC_CANONICAL_HOST): Use CONFIG_SHELL to run $ac_config_sub and
	$ac_config_guess.
	(AC_CANONICAL_TARGET, AC_CANONICAL_BUILD): Likewise.

Tue Dec 10 19:38:59 1996  David J MacKenzie  <[e-mail]>

	* acgeneral.m4 (AC_CACHE_SAVE): Use grep to prevent overflowing
	HP-UX 9.05 /bin/sh buffer in case statement.  From Eric Backus
	<[e-mail]>.

Mon Dec  9 23:39:17 1996  David J MacKenzie  <[e-mail]>

	* acspecific.m4 (AC_FUNC_GETLOADAVG): Add a semicolon between
	shell variable assignments; the evaluation order varies between
	implementations. 

Tue Nov 26 13:00:28 1996  David J MacKenzie  <[e-mail]>

	* Version 2.12.

Wed Nov 20 13:00:21 1996  David J MacKenzie  <[e-mail]>

	* Test release 2.11.2.

	* acgeneral.m4 (AC_OUTPUT): Remove a now-wrong test for whether to
	make an unquoted here document.
	(AC_CACHE_SAVE): Double-up backslashes in double quotes.
	From Paul Eggert.

	* Test release 2.11.1.

	* acgeneral.m4 (AC_TRY_COMPILE, AC_TRY_LINK): Make the final
	newline consistent with the other AC_TRY_* macros: no final dnl
	is needed to avoid extraneous blank lines.
	(AC_CHECK_LIB, AC_HAVE_LIBRARY, AC_COMPILE_CHECK): Remove
	extraneous dnl's.
	(AC_DIVERSION_CMDS, AC_DIVERSION_ICMDS): New macros.
	(AC_OUTPUT_COMMANDS, AC_OUTPUT): Use them instead of appending to
	list macros.

	* acgeneral.m4 (AC_CACHE_SAVE): Handle cache variable values
	correctly even if they contain single quote, or are quoted by
	the shell.  From Paul Eggert <[e-mail]>.
	(AC_INIT_PREPARE): Set LC_MESSAGES to C if set.
	From Hans Olsson <[e-mail]>.
	Set LC_CTYPE to C if set.
	From [e-mail] (Thomas Winder).
	* autoconf.sh, autoheader.sh: Likewise set LC_MESSAGES and LC_CTYPE.

Tue Nov 19 10:29:06 1996  David J MacKenzie  <[e-mail]>

	* testsuite/autoconf.g/sizeof.exp: Use the v2 macro name.

	* acgeneral.m4 (AC_OUTPUT_FILES, AC_OUTPUT_HEADER): Support
	creating output files from multiple pieces, concatenated.
	Suggested by "Theodore Ts'o" <[e-mail]>.
	(AC_LINK_FILES): If called more than once, concatenate the
	arguments.  From Roland McGrath.
	(AC_CONFIG_SUBDIRS): Likewise.
	(AC_OUTPUT_COMMANDS): New macro.  Suggested by
	Tom Tromey <[e-mail]>.
	(AC_OUTPUT): Use the lists it sets.

	* acgeneral.m4 (AC_TRY_RUN_NATIVE): Fail if linking fails, like
	AC_TRY_LINK.
	(AC_TRY_RUN): Don't require AC_C_CROSS.
	(AC_TRY_COMPILER): New macro.
	(AC_LANG_C, AC_LANG_CPLUSPLUS): Set cross_compiling.
	* acspecific.m4 (AC_PROG_CC_WORKS, AC_PROG_CXX_WORKS): Use
	AC_TRY_COMPILER instead of AC_TRY_LINK.
	(AC_PROG_CC_GNU, AC_PROG_CC_G): Split out of AC_PROG_CC.
	(AC_PROG_CXX_GNU, AC_PROG_CXX_G): Split out of AC_PROG_CXX.
	For the *_G macros, make the cache variable names non-GNU-specific.
	(AC_C_CROSS): Mark obsolete, and otherwise a no-op.

	* AUTHORS: New file.
	* Makefile.in (DISTFILES): Add it.

	* acspecific.m4 (AC_FUNC_MMAP): Update the getpagesize
	declarations from getpagesize.h.  Check for unistd.h.

	* acgeneral.m4 (AC_OUTPUT_FILES): Run the eval in a subshell.

	* acfunctions: Map fnmatch, strftime, getpgrp, setpgrp to their
	own macros.

	* acgeneral.m4 (AC_OUTPUT_HEADER): Check that $CONFIG_HEADERS is
	unset, not that it's empty.

Mon Nov 18 10:24:50 1996  David J MacKenzie  <[e-mail]>

	* Version 2.11.

Sun Nov 17 20:12:05 1996  David J MacKenzie  <[e-mail]>

	* acspecific.m4 (AC_FUNC_STRCOLL): Make the checking message more
	accurate.

Thu Nov 14 11:15:27 1996  David J MacKenzie  <[e-mail]>

	* acheaders: Add entry for malloc.h.  Make the strings.h entry
 	suggest AC_CHECK_HEADERS instead of AC_HEADER_STDC.

	* acgeneral.m4 (AC_INIT_PARSE_ARGS): Move initialization of
	ac_max_here_lines here from AC_OUTPUT_HEADER.

	* autoheader.sh: Take the multiple-include protection back out.
	It's not needed for a file that just #defines stuff, and, as Ken
	Raeburn pointed out in Apr 1994:
	Since you don't make it optional, and you don't give the writer of
	configure.in much control over the name of the symbol, it also would
	prevent one "config.h" file in a subdirectory from including
	"../config.h" as a way to avoid duplicating some common tests.

	* acspecific.m4 (AC_PROG_CC_WORKS, AC_PROG_CXX_WORKS): Don't try
	running a program, just try linking.
	(AC_C_CROSS): Make the wording clearer.

Wed Nov 13 10:07:14 1996  David J MacKenzie  <[e-mail]>

	* acspecific.m4 (AC_PROG_CC, AC_PROG_CXX): Check whether the
	compiler works before checking whether it's a GNU compiler.
	(AC_FUNC_VFORK): Call _exit after perror.
	(AC_PATH_XTRA): Go back to using -R, as setting an env var as part
	of CC doesn't get eval'd correctly to actually work.
	Directly test whether a space is needed after -R.
	Don't add "-L" to LDFLAGS if $x_libraries is empty.
	(AC_FUNC_STRFTIME): Check for it in -lintl only if it's not in the
	normal libraries.

	* Test release 2.10.3.

	* testsuite/Makefile.in (dejacheck): New target, suggested by Tom
	Tromey <[e-mail]>.
	(check): Depend on dejacheck.

Tue Nov 12 00:06:14 1996  David J MacKenzie  <[e-mail]>

	* acgeneral.m4 (AC_OUTPUT_FILES): Split the list of sed commands in
	conftest.subs into multiple files named conftest.s[1-9][0-9]*.
	Create a pipeline of sed commands that use these files, then delete
	the temporary files.  From John W. Eaton <[e-mail]>.

	* acspecific.m4 (AC_AIX, AC_MINIX): Remove warnings about AC_TRY_LINK.
	These macros don't change the linkage options.

	* Test release 2.10.2.
	
	* acspecific.m4 (AC_PROG_CC, AC_PROG_CXX) [GCC]: Use -O2 instead
	of -O.  Suggested by [e-mail] (Fred Fish).
	
	* acgeneral.m4 (AC_OUTPUT_HEADER): Support passing
 	AC_CONFIG_HEADER a value containing shell variables.  Suggested by
 	Markku Savela <[e-mail]> and Julian Onions
	<[e-mail]>.
	* acgeneral.m4 (AC_TRY_RUN_NATIVE, AC_TRY_LINK, AC_TRY_COMPILE,
        AC_TRY_CPP): Show the test program in config.log if the test fails.
	From Karl Berry <[e-mail]>.
	
	* testsuite/config/unix.exp: Run the configure script as "./script"
	in case the user doesn't have "." in their PATH.
	
Mon Nov 11 18:02:58 1996  David J MacKenzie  <[e-mail]>

	* acgeneral.m4 (AC_TRY_COMPILE, AC_TRY_LINK): Deal with smart
	compilers that know that an unused function doesn't have to be
	linked in: call the function directly from main().
	(Removing a legacy from when they tried to run the code, I think-djm.)
	From [e-mail] (Fred Fish).

	* acspecific.m4 (AC_FUNC_GETLOADAVG): Rename ac_save_LIBS to avoid
	a clash with AC_CHECK_LIB.
	From Jim Meyering <[e-mail]>.
	(AC_FUNC_FNMATCH, AC_FUNC_MMAP, AC_FUNC_VFORK, AC_FUNC_WAIT3,
	AC_FUNC_STRCOLL, AC_FUNC_MEMCMP): Rename cache variables to avoid
	wrong results if someone calls AC_CHECK_FUNC for these functions.

	* autoheader.sh: Don't cmp with config.h.in if it doesn't exist yet.
	Don't frob lines 1-@TOP@ or @BOTTOM@-end of acconfig.h's.
	Accept TAB as well as SPC after #undef in acconfig.h's.
	
Sat Nov  9 01:54:04 1996  David J MacKenzie  <[e-mail]>

	* Test release 2.10.1.

	* acspecific.m4 (AC_PROG_CC_WORKS, AC_PROG_CXX_WORKS): New macros
	adapted from Bruno Haible <[e-mail]>.
	(AC_PROG_CC, AC_PROG_CXX): Use them.
	* acgeneral.m4 (AC_TRY_RUN_NATIVE): Split out of AC_TRY_RUN.
	(AC_TRY_LINK): Check that the executable exists after linking.
	(AC_EGREP_CPP): Disable m4 quote chars around egrep, so [] in regexps
	isn't eaten.

	* autoheader.sh: Add multiple-inclusion protection for config.h.
	
	* acgeneral.m4 (AC_PREFIX_PROGRAM): Pretty up the output.
	(AC_CHECK_LIB): Include the function being tested in the message.
	(AC_CHECK_PROG, AC_PATH_PROG): Add a dummy variable to force word
	splitting on the path.

	* acspecific.m4 (AC_FUNC_MMAP): Remove check and uses of valloc.
	It turns out it's a separate issue, for GNU grep.
	Replace the test program with a new version from Mike Haertel.

	* acgeneral.m4 (AC_CACHE_SAVE): Accept the HP-UX sh 'set' output
	format.  From Marcus Daniels <[e-mail]>.
	
	* acgeneral.m4 (AC_MSG_CHECKING, AC_CHECKING): Write a message to
	config.log also.  From "T.E.Dickey" <[e-mail]>.
	(AC_CHECK_LIB, AC_CHECK_HEADER, AC_CHECK_HEADERS): Replace use of
	tr with sed, to avoid a bug in the AIX 4.1.3.0 tr reported by
	Alain KNAFF <[e-mail]>.  He says that version of
	tr interprets \055 as a range specifier, like an unquoted -.
	* acspecific.m4 (AC_PROG_MAKE_SET, AC_CHECK_HEADER_DIRENT,
	AC_CHECK_HEADERS_DIRENT): Ditto.
	
	* acspecific.m4 (AC_FUNC_SETPGRP): New macro.
        * acconfig.h (SETPGRP_VOID): New entry.
	From "T.E.Dickey" <[e-mail]>.

        * acspecific.m4 (AC_PATH_X_DIRECT): Try /lib/usr/lib/X11 for A/UX.
        From Guillermo Gomez <[e-mail]>.
	(AC_PATH_XTRA): Replace -R with adding LD_RUN_PATH to CC in the
	Solaris kludge.  Suggested by Paul Eggert <[e-mail]>.
	Define X_DISPLAY_MISSING with AC_DEFINE, and
	if not using X, clear out the X variables.
	Check system-dependent libs before system-independent ones.
	Check for more system-dependent libs.
	From Karl Berry.
	Use AC_CHECK_FUNC in the system-dependent libs tests.
	From Larry Schwimmer <[e-mail]>.
	Wart removal: Don't require AC_ISC_POSIX.
	(AC_ISC_POSIX): Require AC_PROG_CC, since it uses $GCC.
	From [e-mail].
	Don't blather about being called before AC_TRY_LINK,
	which is now called in AC_PROG_CC.  Don't encourage using this macro.
        * acconfig.h (X_DISPLAY_MISSING): Add entry.
	
Fri Nov  8 16:02:08 1996  David J MacKenzie  <[e-mail]>

	* acspecific.m4 (AC_PATH_X_DIRECT): Search for /usr/X11 before
	/usr/X11Rn, etc.  From [e-mail] (Keith Bostic).

	* acgeneral.m4 (AC_CHECK_TYPE) [STDC_HEADERS]: Check in stddef.h, too.
	From "Glenn P. Davis" <[e-mail]>.
	Don't require the second char after the type name to be a space.
	(AC_TRY_RUN): Remove the test files before executing the "failure"
	case code.

	* acspecific.m4 (AC_PROG_CXX): Check for cc++ for NexT.
	From Carl Edman <[e-mail]>.
	(AC_PROG_CC, AC_PROG_CXX): Check whether -g works even if
	C[XX]FLAGS is set.  From T.E.Dickey <[e-mail]>
	(AC_FUNC_FNMATCH): New macro.
	* acconfig.h (HAVE_FNMATCH): New entry.
	
	* acgeneral.m4 (AC_REPLACE_FUNCS): Call AC_CHECK_FUNCS to do the work.
	
Tue Oct 29 13:03:44 1996  Doug Evans  <[e-mail]>

	* acgeneral.m4 (AC_OUTPUT_SUBDIRS): Fix thinko in computation of
	ac_sub_srcdir in relative but not "." case.

Thu Oct 10 22:29:37 1996  David J MacKenzie  <[e-mail]>

	* acgeneral.m4 (AC_CANONICAL_HOST, AC_CANONICAL_TARGET,
	AC_CANONICAL_BUILD): Allow the os part of the string returned by
	config.sub to contain dashes, as in "linux-gnu".

Fri Jul 19 16:59:00 1996  Roland McGrath  <[e-mail]>

	* acgeneral.m4 (AC_CHECK_TYPE): Add dnl so regexp doesn't have a
	leading newline.

Wed Jun 12 13:56:57 1996  David J MacKenzie  <[e-mail]>

	* acgeneral.m4 (AC_CHECK_TYPE): Remove extra ')'.

	* Many files: Update the FSF street address.

Sun Jun  9 17:54:23 1996  Roland McGrath  <[e-mail]>

	* acgeneral.m4 (AC_CHECK_LIB): Add missing \ in last change.

Fri Jun  7 11:54:58 1996  Roland McGrath  <[e-mail]>

	* acgeneral.m4 (AC_CHECK_LIB): Identifierize lib name in $ac_tr_lib.

Mon May 27 13:49:02 1996  Roland McGrath  <[e-mail]>

	* acspecific.m4 (AC_SYS_LONG_FILE_NAMES): If $TMPDIR names an
	existing, writable directory, then test it instead of /tmp, /var/tmp,
	and /usr/tmp for long file name support.

	* acgeneral.m4 (AC_PREREQ): Prepend "FATAL ERROR: " to msg.

Sun May 26 19:07:15 1996  Roland McGrath  <[e-mail]>

	* acspecific.m4 (AC_PROG_MAKE_SET): Sanitize $MAKE for use as
	identifier.

	* acgeneral.m4 (AC_CHECK_TYPE): Tighten regexp so ulong doesn't match
	ulong_t.

	* autoheader.sh: Put $syms in a temporary file and use fgrep -f.

Tue May  7 13:20:33 1996  Roland McGrath  <[e-mail]>

	* acgeneral.m4: Version 2.10 released.

Tue Mar 26 13:03:12 1996  Roland McGrath  <[e-mail]>

	* acgeneral.m4 (AC_OUTPUT_HEADER): Make subdir if necessary.

Thu Mar 21 10:52:03 1996  Roland McGrath  <[e-mail]>

	* acspecific.m4 (AC_FUNC_GETLOADAVG): Fix name of -lelf cache variable
	name in test of it.
	(AC_PATH_XTRA): Fix name of -ldnet cache variable name in test of it.

Wed Mar 20 09:37:31 1996  Roland McGrath  <[e-mail]>

	* acgeneral.m4 (AC_CHECK_LIB): Use \055 for -; leading and trailing
	both lose with some tr.

	* acspecific.m4 (AC_C_CONST): Remove check for gcc 2.7 bug.
	RMS wants everyone to lose until gcc is fixed.

	* acgeneral.m4 (AC_CHECK_LIB): Put - last in tr set so it is not
	considered a range.

	* acspecific.m4 (AC_C_CONST): Add check for gcc 2.7 bug.
	From Paul Eggert and Jim Meyering.

	* acgeneral.m4 (AC_CHECK_LIB): Omit `char $2' decl when $2 is `main'.

Wed Mar 13 22:10:42 1996  Andreas Schwab  <[e-mail]>

	* acgeneral.m4 (AC_CHECK_LIB): Put quotes around _ when
	constructing cache variable name, to separate it from preceding
	text.

Sat Mar 16 15:53:22 1996  Roland McGrath  <[e-mail]>