* lib/m4sugar/m4sh.m4 (AS_INIT_GENERATED): New.
* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Use it.
* doc/autoconf.texi (Initialization macros): Document it.
* lib/m4sugar/m4sh.m4 (_AS_MKDIR_P): Correct documentation to
match implementation.
(_AS_PREPARE, _AS_MKDIR_P_PREPARE): Adjust callers.
* doc/autoconf.texi (Programming in M4sh) <AS_MKDIR_P>: Tweak
wording to better match behavior.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_default_quoted): New macro.
(m4_for, m4_expand_once, m4_text_wrap, m4_text_box): Use it.
* doc/autoconf.texi (Conditional constructs): Document it.
* NEWS: Likewise.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Limitations of Usual Tools) <sed>: Remind
reader that NUL and sed don't always mix.
<tr>: Mention Solaris /usr/ucb/tr bug with \0.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/autotest/general.m4 (AT_JOB_FIFO_FD): New macro.
(AT_INIT): <at_jobs>: New variable.
Accept -j, -jN, --jobs[=N], document them in --help output.
Implement parallel driver loop using a FIFO, enabled with --jobs
and if mkfifo works; otherwise, fall back to sequential loop.
(AT_SETUP): Store, do not output summary progress line if
parallel.
* tests/autotest.at (parallel test execution, parallel truth)
(parallel fallacy, parallel skip): New tests.
* doc/autoconf.texi (testsuite Invocation): Document -j, --jobs,
the mkfifo requirement, and that --errexit may cause concurrent
jobs to finish.
* NEWS: Update.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (Function Portability) <isinf>: Filter out NaN
first.
* THANKS: Update.
Reported by David Cournapeau.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (File Descriptors): Redirecting ':'
in a loop causes bogus optimization with Solaris sh.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (Introduction, Systemology)
(File System Conventions, Portable C and C++)
(Floating Point Portability): Allow URLs to split as needed.
(Indices): Add entries, to work around texinfo bug on indices that
start too close to a page break.
(Particular Functions): Mention ftello.
(Introduction, Language Choice): Use @enddots at sentence end.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Build Directories): Details in this section
only apply to users avoiding automake.
* THANKS: Update.
Reported by Matej Tyc.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/autoconf/programs.m4 (_AC_TOOL_WARN): Support cross-compiles
with poorly named tools; the issue has been reported too many
times in the last four years to pull support.
* doc/autoconf.texi (Specifying Names, Generic Programs): Update
documentation accordingly.
* THANKS: Update.
Reported by Josef Tran and others, wording suggested by Ralf
Wildenhues.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (C Compiler) <AC_C_BIGENDIAN>: Mention that
universal builds require a config header.
* lib/autoconf/c.m4 (AC_C_BIGENDIAN): Enhance comments. Check
AH_HEADER at the last possible moment, so that users can use
AC_CONFIG_HEADER after this macro.
Reported by Stepan Kasal.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.tex: UPDATED refers to the day the manual was
built, not the release date of Autoconf.
Based on a bison patch by Akim Demaille.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/install.texi [!autoconf]: Ensure first paragraphs are
indented like all others in a plain text rendering.
* Makefile.am ($(srcdir)/INSTALL): Ensure plaintext formatting.
Reported by Bruno Haible.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_mapall_sep, m4_list_cmp): Wrap
around...
(_m4_mapall_sep, _m4_list_cmp_raw): ...new helpers, to avoid
duplicate side effects.
(m4_version_compare): Adjust caller.
* lib/m4sugar/foreach.m4 (m4_list_cmp): Rename...
(_m4_list_cmp_raw): ...to match m4sugar.
* doc/autoconf.texi (Looping constructs): Document the behavior of
side effects.
* tests/m4sugar.at (M4 loops, m4@&t@_map, m4@&t@_version_compare):
Ensure only one side effect.
(recursion): Fix test typo.
Reported by Ralf Wildenhues.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/install.texi (Compiling For Multiple Architectures): Explain
how to create universal binaries on MacOS X.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Shell Substitutions): Document the issue.
* lib/m4sugar/m4sh.m4 (AS_VAR_IF): New function.
* lib/autoconf/functions.m4 (AC_CHECK_FUNC): Use it in place of
"test AS_VAR_GET([...]) = yes"
* lib/autoconf/general.m4 (AC_CHECK_FILE, AC_CHECK_DECL): Likewise.
* lib/autoconf/headers.m4 (_AC_CHECK_HEADER_MONGREL): Likewise.
(_AC_CHECK_HEADER_NEW, _AC_CHECK_HEADER_OLD): Likewise.
(_AC_CHECK_HEADER_DIRENT): Likewise.
* lib/autoconf/libs.m4 (AC_CHECK_LIB): Likewise.
* lib/autoconf/types.m4 (_AC_CHECK_TYPE_NEW, AC_CHECK_MEMBER): Likewise.
* lib/autoconf/status.m4 (_AC_OUTPUT_FILES_PREPARE): Use
temporary variable to work around the issue.
* tests/foreign.at (Libtool): Quote result of command
substitution.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* lib/m4sugar/m4sugar.m4 (_m4_apply): New macro.
(m4_map): Ignore empty sublists. For a list consisting of only an
empty sublist, this restores 2.61 behavior of being a no-op.
(m4_map_sep): Likewise, and expand separator.
(m4_mapall, m4_mapall_sep): New macros, to regain 2.62 behavior.
(_m4_map): Rewrite, to be common base for all four variants.
* lib/m4sugar/foreach.m4 (_m4_map): Adjust to new prototype.
* tests/m4sugar.at (m4@&t@_map): Add tests.
* doc/autoconf.texi (Looping constructs) <m4_map>: Document new
macros, and mention ramifications of expanded separator.
* NEWS: Mention the change.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (C Compiler) <AC_C_CHAR_UNSIGNED>: Mention a
portable alternative to this macro.
* THANKS: Update.
Reported by Hallvard B Furuseth.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_bpatsubsts): Match documentation
about anchors, even for only one substitution.
* lib/m4sugar/foreach.m4 (_m4_bpatsubsts): New implementation.
* doc/autoconf.texi (Conditional constructs) <m4_bpatsubsts>:
Clarify behavior with regard to quoting.
* tests/m4sugar.at (recursion): Test scaling of m4_bpatsubsts.
(m4@&t@_bpatsubsts): New test.
* NEWS: Document the linear guarantee.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_for): Use fewer macros.
(_m4_for): Take additional parameter, for fewer m4_indir calls.
* lib/m4sugar/foreach.m4 (_m4_foreach, _m4_shiftn, m4_do)
(m4_reverse, _m4_list_pad, _m4_list_cmp): Adjust all callers.
* doc/autoconf.texi (Looping constructs) <m4_for>: Document subtle
semantic change caused by the optimization.
* tests/m4sugar.at (M4 loops): Test the new semantics.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_reverse): New macro.
(m4_list_cmp): Rewrite to give linear behavior with M4 1.6 on an
m4_reverse'd list.
* lib/m4sugar/foreach.m4 (m4_reverse): Add the M4 1.4.x
counterpart.
* tests/m4sugar.at (recursion): Test it.
* doc/autoconf.texi (Evaluation Macros) <m4_reverse>: Document
it.
(Text processing Macros) <m4_append>: Cross-reference to m4_set.
* NEWS: Mention new macro.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_set_add, m4_set_add_all)
(m4_set_contains, m4_set_contents, m4_set_delete)
(m4_set_difference, m4_set_dump, m4_set_empty, m4_set_foreach)
(m4_set_intersection, m4_set_list, m4_set_listc, m4_set_remove)
(m4_set_size, m4_set_union): New macros.
* lib/m4sugar/foreach.m4 (m4_set_add_all): Add O(n) fallback for
m4 1.4.x.
* lib/autoconf/general.m4 (_AC_INIT_DEFAULTS, AC_SUBST): Use
new m4_set API for the set most likely to be large.
* doc/autoconf.texi (Set manipulation Macros): New node.
* NEWS: Mention new macros.
* tests/m4sugar.at (m4@&t@_set): New test.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Header Templates): Mention rules on comments
and whitespace, and that the user cannot rely on #undef to survive
through config.status.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Text processing Macros) <m4_append>
<m4_prepend>: If m4 is fixed, m4_append can be linear rather than
O(n log n).
* lib/m4sugar/m4sugar.m4 (m4_append, m4_append_uniq): Fix comments.
Analysis by Bruno Haible.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_PACKAGE_VERSION): Ignore failure to
find version.texi, since bison does not provide it.
(m4_prepend): Add new macro, from bison.
(m4_prepend_uniq, m4_prepend_uniq_w): Add new macros, for
completeness.
(_m4_append_uniq): Rename...
(_m4_grow_uniq_1): ...to this to share implementation, and
optimize initial assignment.
(m4_append_uniq_w): Adjust caller.
* NEWS: Document new macros.
* doc/autoconf.texi (Text processing Macros) <m4_append>: Mention
speed consideration.
<m4_prepend>: Document the new prepend variants.
* tests/m4sugar.at (m4@&t@_prepend): New test.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Limitations of Builtins) <!>: Mention ! issue
in compound pipe commands.
<export>: Mention difference of exporting an undefined variable.
(Shell Functions): Mention loss of $? in entry to shell functions.
Extracted from the git mailing list.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Limitations of Usual Tools) <tr>: Add section.
Reported by Bruno Haible and Jim Meyering.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Quadrigraphs): Mention alternate quote used
in m4sugar, and how to still output it literally.
* tests/m4sugar.at (m4@&t@_split): And test it.
Reported by Joel E. Denny.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_expand, _m4_expand): Use more complex
quotes.
(m4_noquote, _m4_split): Use consistent complex quote.
* tests/autotest.at (Left paren, Right paren): Test this.
(Parentheses): Ensure new quadrigraphs still work.
(AT_CHECK_AT_TITLE_CHAR): All title char tests exercise m4_expand.
* NEWS: Mention the fix.
* doc/autoconf.texi (Quadrigraphs): Revert mention of macros that
require quadrigraphs for ().
(Evaluation Macros) <m4_expand>: Relax the restriction against
unbalanced ().
(Pretty Help Strings) <AS_HELP_STRING>: Likewise.
(Writing Testsuites) <AT_SETUP>: Likewise.
Reported by Joel E. Denny, fix suggested by Noah Misch.
Signed-off-by: Eric Blake <ebb9@byu.net>
* bin/autom4te.in (handle_output): Substitute @{:@ and @:}@.
(handle_traces): Likewise.
* lib/m4sugar/m4sugar.m4 (m4_qlen): Account for new quadrigraphs.
* tests/autotest.at (AT_CHECK_AT_TITLE_CHAR): Add new tests.
* doc/autoconf.texi (Quadrigraphs): Document them.
(Evaluation Macros) <m4_expand>: Enhance documentation.
(Text processing Macros) <m4_text_box>: Document cases where
quadrigraphs can help for problemetic unbalanced parentheses.
(Pretty Help Strings) <AS_HELP_STRING>: Likewise.
(Writing Testsuites) <AT_SETUP>: Likewise.
(Limitations of Builtins) <case>: Consolidate text on unbalanced
parentheses, and add an example of creative comments.
* NEWS: Document the addition.
Reported by Joel E. Denny.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Evaluation Macros): Fix typo.
(Notices): Use recommended means to escape RCS keyword.
* cfg.mk (gnulib_dir): New macro.
(web-manual): New target.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Limitations of Usual Tools): Mention awk %u
bug on HP-UX/IA.
Report by Peter O'Gorman.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* lib/autoconf/general.m4 (_AC_ARG_VAR_VALIDATE): Output
precious variable differences less ambiguous with `ugly-quotes'.
If their settings differ only in whitespace, do not fail, but
reuse the old value.
* tests/torture.at (AT_CHECK_AC_ARG_VAR): Extend macro to allow
an optional status and expected-warning argument. Fix m4
quotation for initial value.
(AC_ARG_VAR): Also test for whitespace-only differences, and
that the old value is retained in this case.
* doc/autoconf.texi (Setting Output Variables): Document this.
* NEWS: Update.
Report and initial patch by Paolo Bonzini.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (Input): Mention ACLOCAL_AMFLAGS for automake
users.
* THANKS: Update.
Reported by Chris Pickett.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Runtime): Document that a temporary override
is permissible.
* THANKS: Update.
Reported by Ineiev, example by Ralf Wildenhues.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Introduction): Expand on primary
vs. secondary goal of autoconf.
* THANKS: Update.
Inspired by Paul Smith.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_wrap): Override M4 implementation.
(m4_wrap_lifo, _m4_wrap): New macros.
* lib/m4sugar/m4sh.m4 (AS_INIT): Combine all cleanup into known
order, prior to m4sugar's.
(_AS_DETECT_BETTER_SHELL): Use cleanup parameter, rather than
m4_wrap.
* lib/autotest/general.m4 (AT_INIT): Combine all cleanup into
known order, prior to m4sh's.
* doc/autoconf.texi (Diagnostic Macros) <m4_fatal>: Document
argument.
(Redefined M4 Macros) <m4_wrap>: Rewrite documentation to match
new behavior.
* tests/m4sh.at (AS_INIT cleanup): New test.
* NEWS: Document the change.
Signed-off-by: Eric Blake <ebb9@byu.net>
* bin/autoreconf.in ($run_make): Renamed from ...
($make): ... this. Use now as command to run `make',
overridden by $MAKE. Document this in --help output.
* doc/autoconf.texi (autoreconf Invocation): Document
all environment variables honored by autoreconf.
* NEWS: Update.
Report by Paul Eggert.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (Looping constructs): s/recurses/repeats/.
(Evaluation Macros): Drop `1' suffix from metasyntax variable name
that preceeds @dots. Improve wording.
(Text processing Macros): Drop `1' suffix from metasyntax variable
name that preceeds @dots.
(Number processing Macros): Drop `1' suffix from metasyntax
variable name that preceeds @dots. Improve wording.
* lib/m4sugar/m4sugar.m4 (m4_cmp): Comment wording fix.
Suggested by Ralf Wildenhues.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Writing Testsuites) <AT_CHECK>: Mention that
checks must live inside a test group.
Reported by Christopher Hulbert.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Site Defaults): Fix typo. Add new example
for FHS.
* THANKS: Update.
Reported by Jules Colding and Ralf Wildenhues.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/autotest/general.m4 (AT_LINE): Fix regression from
2007-10-04 when file name is `dnl'.
(AT_INIT) <PREPARE_TESTS>: Move command-line assignments...
<TESTS_BEGIN>: ...to this new diversion, to fix regression from
yesterday in libtool's testsuite.
(_AT_ARG_OPTION): Detect write failure.
* doc/autoconf.texi (Diversion support): Document PREPARE_TESTS to
make libtool's use kosher. Document m4_init.
(Programming in M4sh): Document AS_INIT.
(Writing Testsuites): Document limitation of AT_DATA file name.
* tests/autotest.at (unusual file names): New test.
(Banners, Keywords and ranges): Use correct shell.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/autotest/general.m4 (_AT_ARG_OPTION): Move missing argument
detection...
(AT_INIT) <PARSE_ARGS_END>: ...here, since -k always takes
argument.
<DEFAULTS>: Delay computation of variables based on $at_dir...
<PREPARE_TESTS>: ...to here, since -C can change $at_dir.
<TESTS>: Re-invoke via absolute name, since -C may be in effect.
<PARSE_ARGS>: Parse new option.
<HELP_TUNING>: Document it.
* tests/autotest.at (Choosing where testsuite is run): New test
for this feature.
(Keywords and ranges): Add test for missing -k argument.
* NEWS: Document this.
* doc/autoconf.texi (testsuite Invocation): Likewise.
Signed-off-by: Eric Blake <ebb9@byu.net>
IRIX sh $0 issue in functions, move content from ...
(Portable Shell): ... here.
(Shell Script Compiler): Note that shell functions are not
totally unportable any more.
See: http://lists.gnu.org/archive/html/bug-gnulib/2007-11/msg00075.html
* doc/autoconf.texi (Preprocessor Arithmetic): New section.
(AC_TYPE_LONG_LONG_INT, AC_TYPE_UNSIGNED_LONG_LONG_INT):
These no longer check for preprocessor flaws.
* lib/autoconf/types.m4 (_AC_TYPE_LONG_LONG_SNIPPET):
Do not check for preprocessor flows.
":;{" shorthand as in previous patch.
2007-11-12 Paul Eggert <eggert@cs.ucla.edu>
* doc/autoconf.texi (Limitations of Builtins): Document problem
with { ... } a bit more clearly. Suggest ":;{" as a shorthand
for the workaround.
* lib/m4sugar/Makefile.am (version.m4): Detect 'echo' failure.
Use ":;{" shorthand.
* tests/Makefile.am ($(srcdir)/package.m4): Likewise.
* doc/autoconf.texi (Making testsuite Scripts): It is not necessary,
when using Automake, to write a rule to produce atlocal, since it's
an AC_CONFIG_FILES. Mention that atlocal.in needs to be
distributed, not atconfig.in.
Signed-off-by: Benoit Sigoure <tsuna@lrde.epita.fr>
