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--- autoconf/NEWS	2003/11/06 09:32:25	1.322
+++ autoconf/NEWS	2006/06/05 12:48:24	1.379
@@ -1,10 +1,244 @@
-* Major changes in Autoconf 2.59                       -*- outline -*-
+* Major changes in Autoconf 2.59d
+
+  Released 2006-06-05, by Ralf Wildenhues.
+
+** GNU make now recommended for VPATH builds
+  INSTALL now suggests VPATH builds (e.g., "sh ../srcdir/configure")
+  only if you use GNU make.  In practice, other 'make' implementations
+  have too many subtle incompatibilities in their support for VPATH.
+  These incompatibilities do not hurt bare Autoconf, but do affect
+  Automake-generated makefiles.  Recommending GNU make keeps the
+  installation instructions simpler.
+
+** Even more safety checks for the new Directory variables:
+  Warn about suspicious `${datarootdir}' found in config files output.
+
+** AC_TRY_COMMAND, AC_TRY_EVAL, ac_config_guess, ac_config_sub, ac_configure
+  These never-documented macros and variables have been marked with
+  comments saying that they may be removed in a future release,
+  because their use can lead to unintended code being executed.
+  If you need functionality that only these macros or variables
+  currently supply, please write bug-autoconf@gnu.org.
+
+** AC_SUBST, AC_DEFINE
+  Literal arguments to these are passed to m4_pattern_allow now.
+
+** AC_PROG_CC_STDC
+  Passing 'ac_cv_prog_cc_stdc=no' to 'configure' now sets ac_cv_prog_cc_c99
+  and ac_cv_prog_cc_c89 to 'no' as well, for backward compatibility with
+  obsolete K&R tests in the Automake test suite.
+
+** AC_PROG_CXX_C_O
+  New macro.
+
+** AC_PROG_MKDIR_P
+  New macro.
+
+** AS_MKDIR_P
+  Now more robust with special characters in file names, or when
+  multiple processes create the same directory at the same time.
+
+** Obsolescent macros
+  The documentation now says that the following macros are obsolescent:
+  they test for problems that are so old that they are no longer of
+  practical importance on current systems.
+
+    AC_C_BACKSLASH_A       AC_FUNC_MEMCMP            AC_HEADER_DIRENT
+    AC_C_CONST             AC_FUNC_SELECT_ARGTYPES   AC_HEADER_STAT
+    AC_C_PROTOTYPES        AC_FUNC_SETPGRP           AC_HEADER_STDC
+    AC_C_STRINGIZE         AC_FUNC_SETVBUF_REVERSED  AC_HEADER_SYS_WAIT
+    AC_C_VOLATILE          AC_FUNC_STAT              AC_HEADER_TIME
+    AC_FUNC_CLOSEDIR_VOID  AC_FUNC_STRFTIME          AC_ISC_POSIX
+    AC_FUNC_GETPGRP        AC_FUNC_UTIME_NULL        AC_PROG_GCC_TRADITIONAL
+    AC_FUNC_LSTAT          AC_FUNC_VPRINTF           AC_STRUCT_TM
+
+  New programs need not use these macros.  We have no current plans to
+  remove them.
+
+** autoreconf
+  For compatibility with future Libtool 2.0, autoreconf will invoke
+  libtoolize with the option `--ltdl' now, if LT_CONFIG_LTDL_DIR is
+  used.
+
+* Major changes in Autoconf 2.59c
+
+  Released 2006-04-12, by Ralf Wildenhues.
+
+** The configure command now redirects standard input from /dev/null,
+  to help avoid problems with subsidiary commands that might mistakenly
+  read standard input.  AS_ORIGINAL_STDIN_FD points to the original
+  standard input before this redirection, if you really want configure to
+  read from standard input.
+
+** Directory variables adjusted to recent changes in the GNU Coding Standards.
+  The following directory variables are new:
+
+    datarootdir   read-only architecture-independent data root [PREFIX/share]
+    localedir     locale-specific message catalogs [DATAROOTDIR/locale]
+    docdir        documentation root [DATAROOTDIR/doc/PACKAGE]
+    htmldir       html documentation [DOCDIR]
+    dvidir        dvi documentation [DOCDIR]
+    pdfdir        pdf documentation [DOCDIR]
+    psdir         ps documentation [DOCDIR]
+
+  The following variables have new default values:
+
+    datadir       read-only architecture-independent data [DATAROOTDIR]
+    infodir       info documentation [DATAROOTDIR/info]
+    mandir        man documentation [DATAROOTDIR/man]
+
+  This means that if you use any of `@datadir@', `@infodir@', or
+  `@mandir@' in a file, you will have to ensure `${datarootdir}' is
+  defined in this file.  As a temporary measure, if any of those are
+  found but no mention of `datarootdir', the substitutions will be
+  replaced with values that do not contain `${datarootdir}', and a
+  warning will be issued.
+
+** @top_builddir@ is now a dir name: it is always nonempty and doesn't have
+  a trailing slash.  Similar change will be made to ac_top_builddir in a
+  future release; the old style value, which matches (../)*, is (and will
+  continue to be) available as ac_top_build_prefix.
+
+** AC_C_TYPEOF
+  New macro to check for support of 'typeof' syntax a la GNU C.
+
+** AC_CHECK_DECLS_ONCE, AC_CHECK_FUNCS_ONCE, AC_CHECK_HEADERS_ONCE
+  New "once-only" variants of commonly-used macros, to make 'configure'
+  smaller and faster in common cases.
+
+** AC_FUNC_STRTOLD
+  New macro to check for strtold with C99 semantics.
+
+** AC_HEADER_ASSERT
+  New macro that lets builder disable assertions at 'configure'-time.
+
+** AC_PATH_X
+  Now checks for X11/Xlib.h and XrmInitialize (X proper) rather than
+  X11/Intrinsic.h and XtMalloc (Xt).
+
+** AC_PRESERVE_HELP_ORDER
+  New macro that causes `configure' to display help strings for AC_ARG_ENABLE
+  and AC_ARG_WITH arguments in one region, in the order defined.  The default
+  behavior is to group options of each classes separately.
+
+** AC_PROG_CC, AC_PROG_CXX
+  No longer automatically arrange to declare the 'exit' function of C,
+  when a C++ compiler is used.  Standard Autoconf macros no longer use
+  'exit', so this is no longer an issue for them.  If you use C++, and
+  want to call 'exit', you'll have to arrange for its declaration
+  yourself.  But we now suggest you return from 'main' instead.
+
+** AC_PROG_CC_C89, AC_PROG_CC_C99
+  New macros for ISO C99 support.  AC_PROG_CC_C89 and AC_PROG_CC_C99
+  check for ANSI C89 and ISO C99 support respectively.
+
+** AC_PROG_CC_STDC
+  Has been unobsoleted, and will check if the compiler supports ISO
+  C99, falling back to ANSI C89 if not.  ac_cv_prog_cc_stdc is
+  retained for backwards compatibility, assuming the value of
+  ac_cv_prog_cc_c99 or ac_cv_prog_cc_c89 (whichever is valid, in
+  that order).
+
+** AC_STRUCT_DIRENT_D_INO, AC_STRUCT_DIRENT_D_TYPE
+  New macros for checking commonly-used members of struct dirent.
+
+** AC_SUBST
+  The subtituted value can now contain newlines.
+
+** AC_SUBST_FILE
+  The substitution now occurs only when @variable@ is on a line by itself,
+  optionally surrounded by spaces and tabs.  The whole line is replaced.
+
+** AC_TYPE_LONG_DOUBLE, AC_TYPE_LONG_DOUBLE_WIDER
+  New macros to check for long double, and whether it is wider than double.
+  The old macro AC_C_TYPE_LONG_DOUBLE has been marked as obsolete;
+  applications should switch to the new macro.
+
+** AC_TYPE_INT8_T, AC_TYPE_INT16_T, AC_TYPE_INT32_T, AC_TYPE_INT64_T,
+   AC_TYPE_INTMAX_T, AC_TYPE_INTPTR_T, AC_TYPE_LONG_LONG_INT, AC_TYPE_SSIZE_T,
+   AC_TYPE_UINT8_T, AC_TYPE_UINT16_T, AC_TYPE_UINT32_T, AC_TYPE_UINT64_T,
+   AC_TYPE_UINTMAX_T, AC_TYPE_UINTPTR_T, AC_TYPE_UNSIGNED_LONG_LONG_INT
+  New macros to check for C99 and POSIX types.
+
+** AC_USE_SYSTEM_EXTENSIONS
+  New macro to enable extensions to Posix.
+
+** AH_HEADER
+  New macro which is defined to the name of the first declared config header
+  or undefined if no config headers have been declared yet.
+
+** AS_HELP_STRING
+  The macro correctly handles quadrigraphs now.
+
+** AS_BOURNE_COMPATIBLE, AS_SHELL_SANITIZE, AS_CASE
+  These macros are new or published now.
+
+** AT_COPYRIGHT
+  New macro for copyright notices in testsuite files.
+
+** ALLOCA, LIBOBJS, LTLIBOBJS
+  Object names added to these variables are now prefixed with `${LIBOBJDIR}',
+  as in `${LIBOBJDIR}alloca.o'.  LIBOBJDIR is meant to be defined from
+  `Makefile.in' in case the object files lie in a different directory.
+  The LIBOBJDIR feature is experimental.
+
+** autoreconf
+  Supports --no-recursive now.
+
+** New macros to support Erlang/OTP.
+  New macros for configuring paths to Erlang tools and libraries:
+  AC_ERLANG_PATH_ERLC, AC_ERLANG_NEED_ERLC, AC_ERLANG_PATH_ERL,
+  AC_ERLANG_NEED_ERL, AC_ERLANG_CHECK_LIB, AC_ERLANG_SUBST_ROOT_DIR,
+  AC_ERLANG_SUBST_LIB_DIR.
+
+  New macros for configuring installation of Erlang libraries:
+  AC_ERLANG_SUBST_INSTALL_LIB_DIR, AC_ERLANG_SUBST_INSTALL_LIB_SUBDIR.
+
+** The manual now mentions Gnulib more prominently.
+
+** New macros to support Objective C.
+  AC_PROG_OBJC, AC_PROG_OBJCPP.
+
+* Major changes in Autoconf 2.59b
+
+  Released 2004-08-20, by Paul Eggert.
+
+** AC_CHECK_ALIGNOF
+  New macro that computes the default alignment of a type.
+
+** AC_CHECK_TOOL, AC_PATH_TOOL, AC_CHECK_TOOLS
+  When cross-compiling, these macros will give a warning if the tool
+  is not prefixed.  In the future, unprefixed cross tools will not
+  be detected; please consult the info documentation for information
+  about the reason of this change.
+
+** AC_CHECK_TARGET_TOOL, AC_PATH_TARGET_TOOL, AC_CHECK_TARGET_TOOLS
+  New macros that detect programs whose name is prefixed with the
+  target type, if the build type and target type are different.
+
+** AC_REQUIRE_AUX_FILE
+  New trace macro that declares expected auxiliary files.
+
+** AC_PROG_GREP
+  New macro that tests for a grep program that accepts as a long a line
+  as possible.
+
+** AC_PROG_EGREP, AC_PROG_FGREP
+  These macros now require AC_PROG_GREP, and try EGREP="$GREP -E" and
+  FGREP="$GREP -F" respectively if possible, or else run a path search for
+  a program that accepts as long a line as possible.
+
+** AC_PROG_SED
+  New macro that tests for a sed program that truncates as few characters
+  as possible.
+
+* Major changes in Autoconf 2.59
 
   Released 2003-11-04, by Akim Demaille
 
 ** ac_abs_builddir etc.
-  Absolute paths were actually relative in 2.58.
-
+  Absolute file names were actually relative in 2.58.
+
 * Major changes in Autoconf 2.58
 
   Released 2003-11-04, by Akim Demaille
@@ -112,7 +346,7 @@ Release tips:
 - Writing Test Programs
 
   This sections explains how to write good test sources to use with
-  AC_COMPILE_IFELSE etc.  It documents AC_LANG_PROGRAMS and so forth.
+  AC_COMPILE_IFELSE etc.  It documents AC_LANG_PROGRAM and so forth.
 
 - AC_FOO_IFELSE vs. AC_TRY_FOO
 
@@ -315,8 +549,9 @@ Release tips:
   More of them.
 
 - GNATS
-  The GNATS base has moved to
+  The GNATS base moved to
   http://bugs.gnu.org/cgi-bin/gnatsweb.pl?database=autoconf
+  (It is no longer available, though.)
 
 ** Misc.
 
@@ -512,7 +747,6 @@ Release tips:
 There was no release of Autoconf 2.51 since some packagers had used
 this version number without permission to ship intermediary versions
 of 2.50.  The version was skipped to avoid confusion.
-
 
 * Major changes in Autoconf 2.50
 
@@ -546,7 +780,7 @@ config.guess, config.sub.
 
 - When recursing into subdirectories, try for configure.gnu before
   configure to adapt for packages not using autoconf on case-insensitive
-  filesystems.
+  file systems.
 
 - Diagnostics
   More errors are now caught (circular AC_REQUIRE dependencies,
@@ -852,7 +1086,7 @@ Major changes in Autoconf 2.5:
 * New macro: AC_CACHE_CHECK, to make using the cache easier.
 * config.log contains the command being run as well as any output from it.
 * AC_CHECK_LIB can check for libraries with "." or "/" or "+" in their name.
-* AC_PROG_INSTALL doesn't cache a path to install-sh, for sharing caches.
+* AC_PROG_INSTALL doesn't cache a name for install-sh, for sharing caches.
 * AC_CHECK_PROG, AC_PATH_PROG, AC_CHECK_PROGS, AC_PATH_PROGS, and
   AC_CHECK_TOOL can search a path other than $PATH.
 * AC_CHECK_SIZEOF takes an optional size to use when cross-compiling.
@@ -909,7 +1143,7 @@ updated configure.in files.
 It's best to use GNU m4 1.3 (or later) with Autoconf version 2.
 Autoconf now makes heavy use of m4 diversions, which were implemented
 inefficiently in GNU m4 releases before 1.3.
-
+
 Major changes in Autoconf 2.0:
 
   Released October 26th, 1994, by David J. MacKenzie
@@ -1063,7 +1297,7 @@ Major changes in Autoconf 1.8:
   warns about unknown options.
 * config.status accepts --help, --version options.
 
-** Paths and other changes:
+** File names and other changes:
 * Relative srcdir values are not made absolute.
 * The values of @prefix@ and @exec_prefix@ and @top_srcdir@ get substituted.
 * Autoconf library files are installed in ${datadir}/autoconf, not ${datadir}.
@@ -1109,7 +1343,7 @@ Major changes in Autoconf 1.4:
 * New macros AC_HAVE_POUNDBANG, AC_TIME_WITH_SYS_TIME, AC_LONG_DOUBLE,
   AC_GETGROUPS_T, AC_DEFINE_UNQUOTED.
 * autoconf and autoheader use the M4 environment variable to determine the
-  path of the m4 program to use.
+  name of the m4 program to use.
 * The --macrodir option to autoconf and autoheader specifies the directory
   in which acspecific.m4, acgeneral.m4, etc. reside if not the default.
 * autoconf and autoheader can take `-' as their file names, which means to
@@ -1122,9 +1356,9 @@ Major changes in Autoconf 1.4:
   AC_DEFINE_UNQUOTED instead.
 * Much textual processing done with external calls to tr and sed have been
   internalized with builtin m4 `patsubst' and `translit' calls.
-* AC_OUTPUT doesn't hardwire the filenames it outputs.  Instead, you can
+* AC_OUTPUT doesn't hardwire the file names it outputs.  Instead, you can
   set the shell variables `gen_files' and `gen_config' to the list of
-  filenames to output.
+  file names to output.
 * AC_DECLARE_YYTEXT does an AC_SUBST of `LEX_OUTPUT_ROOT', which may be
   "lex.yy" or "lexyy", depending on the system.
 * AC_PROGRAMS_CHECK takes an optional third arg.  If given, it is used as
@@ -1161,8 +1395,8 @@ Various bug fixes.
 
 -----
 
-Copyright (C) 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, 2003
-Free Software Foundation, Inc.
+Copyright (C) 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002,
+2003, 2004, 2005, 2006 Free Software Foundation, Inc.
 
 This file is part of GNU Autoconf.
 
@@ -1178,5 +1412,9 @@ GNU General Public License for more deta
 
 You should have received a copy of the GNU General Public License
 along with GNU Autoconf; see the file COPYING.  If not, write to
-the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA.
+the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+Boston, MA 02110-1301, USA.
+
+Local Variables:
+mode: outline
+End:

 

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