for `$<'. New entry `Long lines', based on a report from Simon
Josefsson. Augment the documentation for SHELL = @SHELL@ with a
paragraph about DJGPP, based on a mail from Richard Dawe.
inherits from language Autoconf-without-aclocal-m4.
(Customizing autom4te): Adjust example; the cache must now be
disabled for language Autoconf-without-aclocal-m4.
* lib/autoconf/programs.m4 (AC_PATH_TOOL, AC_CHECK_TOOL,
AC_CHECK_TOOLS): Warn if a cross-tool is found without
a prefix.
(AC_PATH_TARGET_TOOL, AC_CHECK_TARGET_TOOL,
AC_CHECK_TARGET_TOOLS): New macros.
* doc/autoconf.texi (Generic Programs): Document
(AC_PATH_TARGET_TOOL, AC_CHECK_TARGET_TOOL,
AC_CHECK_TARGET_TOOLS, and warn for future changes
in the behavior of AC_PATH_TOOL, AC_CHECK_TOOL and
AC_CHECK_TOOLS.
(Specifying Names): Document the reason for these future
behavioral changes.
* tests/mktests.sh: Do not generate tests for the
new macros.
* NEWS: Document these changes.
* doc/autoconf.texi: Avoid macros with unbraced arguments,
they make TeX hang up.
refer to the correct file.
* doc/autoconf.texi (AU_DEFUN): Describe more correctly
the behavior of the third argument.
* lib/autoconf/autoupdate.m4 (AU_DEFUN): Describe more
correctly the behavior of the third argument. Document
what the three macros that AU_DEFUN defines do. Fix
warning message when the third argument includes $0
(reported by Alexandre Duret-Lutz).
* doc/autoconf.texi: Don't say that the third parameter
is broken.
* lib/autoconf/autoupdate.m4 (AU_DEFINE): New dummy macro.
(AU_DEFUN): Honor the third parameter, create autoupdate
macros with AU_DEFINE.
* lib/autoconf/headers.m4 (AC_USG, AC_MEMORY_H,
AC_DIR_HEADER): Use AU_DEFUN's third parameter.
* lib/autoconf/lang.m4 (AC_LANG_SAVE): Likewise.
* lib/autoconf/programs.m4 (AC_RSH): Likewise.
* lib/autoconf/specific.m4 (AC_HAVE_POUNDBANG,
AC_ARG_ARRAY, AC_CYGWIN, AC_EMXOS2, AC_MINGW32,
AC_XENIX_DIR): Likewise.
* lib/autoconf/types.m4 (AC_INT_16_BITS, AC_LONG_64_BITS,
AC_STRUCT_ST_BLKSIZE, AC_STRUCT_ST_RDEV): Likewise.
* lib/autoconf/status.m4: Remove FIXME.
* tests/local.at (AT_CHECK_AU_MACRO): Ignore stderr, check
that the macro is not present anymore in the updated
configure.ac.
* tests/tools.at (autoupdate AC_LINK_FILES): Ignore stderr
of autoupdate.
grep or ggrep program in PATH that accepts as long lines as
possible.
* lib/autoconf/programs.m4 (_AC_PROG_GREP): Factor out the core of
AC_PROG_GREP.
(AC_PROG_EGREP, AC_PROG_FGREP): Use it to find best available
egrep and fgrep respectively if $GREP -E/-F don't work.
(_AC_PATH_PROG_FEATURE_CHECK): Factor out the common core of
_AC_PROG_GREP, and AC_PROG_SED.
(_AC_FEATURE_CHECK_LENGTH): New helper macro for finding the
longest input length accepted by a command.
(AC_PROG_SED): Use it.
* doc/autoconf.texi (Particular Programs): Document the changes.
* NEWS: Updated.
-c -o might not work. From a suggestion by Kevin Ryde.
(C Compiler, Generating Sources, Limitations
of Usual Tools, Limitations of Make, Making testsuite Scripts):
Don't put '-o' after non-options, as POSIX doesn't allow this.
Mention that cc's name might be gcc or c89 or whatever.
* TODO: Remove already done things. Update the part
about finding tools for the target.
2003-11-24 Paolo Bonzini <bonzini@gnu.org>
* lib/autoconf/headers.m4 (AC_USG, AC_MEMORY_H,
AC_DIR_HEADER): Make wording more consistent.
* lib/autoconf/specific.m4 (AC_CYGWIN, AC_EMXOS2,
AC_MINGW32): Explain the transition better.
* lib/autoconf/types.m4 (AC_INT_16_BITS,
AC_LONG_64_BITS): Explain the transition better.
2003-11-24 Paolo Bonzini <bonzini@gnu.org>
* doc/autoconf.texi (Obsoleting Macros): Don't
document the third parameter of AU_DEFUN.
* lib/autoconf/autoupdate.m4 (AU_DEFINE): Remove.
(AU_DEFUN): Remove the third parameter, it was not used.
Use AC_DEFUN directly, not AU_DEFINE.
* lib/autoconf/status.m4 (AC_LINK_FILES): Move the message
into the expanded body, consistently with other macros
such as AC_USG.
* doc/autoconf.texi (Using System Type): Revise, showing $host rather
than $target since the latter is not usual, add guidelines on when to
use or not use the system type.
$host_cpu pointed out by Ralf Corsepius.
so that ac_abs_builddir, ac_abs_top_builddir, ac_abs_srcdir,
and ac_abs_top_srcdir are absolute paths.
* lib/m4sugar/m4sh.m4 (AS_SET_CATFILE): Remove misleading comment.
computing the absolute path to d1 in the source hierarchy: it may
not exist at all. So don't cd into it.
From Alexandre Duret-Lutz.
http://mail.gnu.org/archive/html/bug-autoconf/2003-10/msg00205.html
* lib/m4sugar/m4sh.m4 (AS_SET_CATFILE): New.
From Paul Eggert, but named after Perl's IO::Spec->catfile.
* doc/autoconf.texi (Programming in M4sh): Document.
* lib/autoconf/status.m4 (_AC_SRCPATHS): Use it.
(GNU Fortran): New.
* doc/autoconf.texi (Language Choice): Document.
* lib/autoconf/fortran.m4 (AC_FC_SRCEXT, AC_FC_FREEFORM): Assert
the current language is Fortran.
