stock autoconf-2.10

git-svn-id: svn://anonsvn.mit.edu/krb5/branches/FSF@7697 dc483132-0cff-0310-8789-dd5450dbe970

src/util/autoconf/NEWS

@@ -1,3 +1,164 @@
+Major changes in release 2.10:
+
+* Bug fixes.
+* The cache variable names used by `AC_CHECK_LIB(LIB, FUNC, ...)' has
+  changed: now $ac_cv_lib_LIB_FUNC, previously $ac_cv_lib_LIB.
+
+Major changes in releases 2.6 through 2.9:
+
+* Bug fixes.
+
+Major changes in release 2.5:
+
+* New configure options --bindir, --libdir, --datadir, etc., with
+  corresponding output variables.
+* 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_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.
+
+Major changes in release 2.4:
+
+* Fix a few bugs found by Emacs testers.
+
+Major changes in release 2.3:
+
+* Fix the cleanup trap in several ways.
+* Handle C compilers that are picky about option placement.
+* ifnames gets the version number from the right directory.
+
+Major changes in release 2.2:
+
+* The ifnames utility is much faster but requires a "new awk" interpreter.
+* AC_CHECK_LIB and AC_HAVE_LIBRARY check and add the new
+  library before existing libs, not after, in case it uses them.
+* New macros: AC_FUNC_GETPGRP, AC_CHECK_TOOL.
+* Lots of bug fixes.
+* Many additions to the TODO file :-)
+
+Major changes in release 2.1:
+
+* Fix C++ problems.
+* More explanations in the manual.
+* Fix a spurious failure in the testsuite.
+* Clarify some warning messages.
+* autoreconf by default only rebuilds configure and config.h.in files
+  that are older than any of their particular input files; there is a
+  --force option to use after installing a new version of Autoconf.
+
+Thanks to everybody who's submitted changes and additions to Autoconf!
+I've incorporated many of them, and am still considering others for
+future releases -- but I didn't want to postpone this release indefinitely.
+
+Caution: don't indiscriminately rebuild configure scripts with
+Autoconf version 2.  Some configure.in files need minor adjustments to
+work with it; the documentation has a chapter on upgrading.  A few
+configure.in files, including those for GNU Emacs and the GNU C
+Library, need major changes because they relied on undocumented
+internals of version 1.  Future releases of those packages will have
+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 release 2.0:
+
+** New copyright terms:
+* There are no restrictions on distribution or use of configure scripts.
+
+** Documentation:
+* Autoconf manual is reorganized to make information easier to find
+  and has several new indexes.
+* INSTALL is reorganized and clearer and is now made from Texinfo source.
+
+** New utilities:
+* autoscan to generate a preliminary configure.in for a package by
+  scanning its source code for commonly used nonportable functions,
+  programs, and header files.
+* ifnames to list the symbols used in #if and #ifdef directives in a
+  source tree.
+* autoupdate to update a configure.in to use the version 2 macro names.
+* autoreconf to recursively remake configure and configuration header
+  files in a source tree.
+
+** Changed utilities:
+* autoheader can take pieces of acconfig.h to replace config.h.{top,bot}.
+* autoconf and autoheader can look for package-local definition files
+  in an alternate directory.
+
+** New macros:
+* AC_CACHE_VAL to share results of tests between configure runs.
+* AC_DEFUN to define macros, automatically AC_PROVIDE them, and ensure
+  that macros invoked with AC_REQUIRE don't interrupt other macros.
+* AC_CONFIG_AUX_DIR, AC_CANONICAL_SYSTEM, AC_CANONICAL_HOST, AC_LINK_FILES to
+  support deciding unguessable features based on the host and target types.
+* AC_CONFIG_SUBDIRS to recursively configure a source tree.
+* AC_ARG_PROGRAM to use the options --program-prefix,
+  --program-suffix, and --program-transform-name to change the names
+  of programs being installed.
+* AC_PREFIX_DEFAULT to change the default installation prefix.
+* AC_TRY_COMPILE to compile a test program without linking it.
+* AC_CHECK_TYPE to check whether sys/types.h or stdlib.h defines a given type.
+* AC_CHECK_LIB to check for a particular function and library.
+* AC_MSG_CHECKING and AC_MSG_RESULT to print test results, on a single line,
+  whether or not the test succeeds.  They obsolete AC_CHECKING and AC_VERBOSE.
+* AC_SUBST_FILE to insert one file into another.
+* AC_FUNC_MEMCMP to check whether memcmp is 8-bit clean.
+* AC_FUNC_STRFTIME to find strftime even if it's in -lintl.
+* AC_FUNC_GETMNTENT to find getmntent even if it's in -lsun or -lseq.
+* AC_HEADER_SYS_WAIT to check whether sys/wait.h is POSIX.1 compatible.
+
+** Changed macros:
+* Many macros renamed systematically, but old names are accepted for
+  backward compatibility.
+* AC_OUTPUT adds the "automatically generated" comment to
+  non-Makefiles where it finds @configure_input@ in an input file, to
+  support files with various comment syntaxes.
+* AC_OUTPUT does not replace "prefix" and "exec_prefix" in generated
+  files when they are not enclosed in @ signs.
+* AC_OUTPUT allows the optional environment variable CONFIG_STATUS to
+  override the file name "config.status".
+* AC_OUTPUT takes an optional argument for passing variables from
+  configure to config.status.
+* AC_OUTPUT and AC_CONFIG_HEADER allow you to override the input-file names.
+* AC_OUTPUT automatically substitutes the values of CFLAGS, CXXFLAGS,
+  CPPFLAGS, and LDFLAGS from the environment.
+* AC_PROG_CC and AC_PROG_CXX now set CFLAGS and CXXFLAGS, respectively.
+* AC_PROG_INSTALL looks for install-sh or install.sh in the directory
+  specified by AC_CONFIG_AUXDIR, or srcdir or srcdir/.. or
+  srcdir/../.. by default.
+* AC_DEFINE, AC_DEFINE_UNQUOTED, and AC_SUBST are more robust and smaller.
+* AC_DEFINE no longer prints anything, because of the new result reporting
+  mechanism (AC_MSG_CHECKING and AC_MSG_RESULT).
+* AC_VERBOSE pays attention to --quiet/--silent, not --verbose.
+* AC_ARG_ENABLE and AC_ARG_WITH support whitespace in the arguments to
+  --enable- and --with- options.
+* AC_CHECK_FUNCS and AC_CHECK_HEADERS take optional shell commands to
+  execute on success or failure.
+* Checking for C functions in C++ works.
+
+** Removed macros:
+* AC_REMOTE_TAPE and AC_RSH removed; too specific to tar and cpio, and
+  better maintained with them.
+* AC_ARG_ARRAY removed because no one was likely using it.
+* AC_HAVE_POUNDBANG replaced with AC_SYS_INTERPRETER, which doesn't
+  take arguments, for consistency with all of the other specific checks.
+
+** New files:
+* Comes with config.sub and config.guess, and uses them optionally.
+* Uses config.cache to cache test results.  An alternate cache file
+  can be selected with the --cache-file=FILE option.
+* Uses optional shell scripts $prefix/share/config.site and
+  $prefix/etc/config.site to perform site or system specific initializations.
+* configure saves compiler output to ./config.log for debugging.
+* New files autoconf.m4 and autoheader.m4 load the other Autoconf macros.
+* acsite.m4 is the new name for the system-wide aclocal.m4.
+* Has a DejaGnu test suite.
+
 Major changes in release 1.11:
 
 * AC_PROG_INSTALL calls install.sh with the -c option.
@@ -10,8 +171,8 @@ Plus a few other bug fixes.
 Major changes in release 1.10:
 
 * autoheader uses config.h.bot if present, analogous to config.h.top.
-* AC_PROG_INSTALL looks for install.sh in srcdir or srcdir/.. or
-  srcdir/../.. and never uses cp.
+* AC_PROG_INSTALL looks for install.sh in srcdir or srcdir/.. and
+  never uses cp.
 * AC_PROG_CXX looks for cxx as a C++ compiler.
 
 Plus several bugs fixed.
@@ -118,9 +279,9 @@ Major changes in release 1.4:
   set the shell variables `gen_files' and `gen_config' to the list of
   filenames to output.
 * AC_DECLARE_YYTEXT does an AC_SUBST of `LEX_OUTPUT_ROOT', which may be
-  "lex.yy" or "lexyy", depending on the system. 
+  "lex.yy" or "lexyy", depending on the system.
 * AC_PROGRAMS_CHECK takes an optional third arg.  If given, it is used as
-  the default value. 
+  the default value.
 * If AC_ALLOCA chooses alloca.c, it also defines STACK_DIRECTION.
 * AC_CONST works much more reliably on more systems.
 * Many bug fixes.