* doc/autoconf.texi (C Compiler): Document that AC_PROG_CC_C89
and AC_PROG_CC_C99 prefer extended over strict conformance modes.
Report by Vincent Lefèvre.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (Redefined M4 Macros): Rewrite synopsis of
m4_if in the presence of more than three arguments.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (config.status Invocation): Fix markup in
synopsis. Use `tag' instead of `file' notation for the
non-option arguments, to be consistent with the documentation
of the AC_CONFIG_* macros.
* lib/autoconf/status.m4 (_AC_OUTPUT_CONFIG_STATUS): Likewise,
use `tag' notation for non-option arguments.
Report by John Calcote.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (Expanded Before Required): Add a case study.
(Running the Compiler) <AC_COMPILE_IFELSE>: Remind users that
running a compile test will AC_REQUIRE the compiler check.
(Macro Definitions) <AC_DEFUN>: Contrast AC_DEFUN and m4_define.
(C Compiler) <AC_PROG_CC>: Mention the fact that only first
invocation of this macro checks for $EXEEXT, and that many other
macros use it via AC_REQUIRE.
Reported by Andreas Schwab.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Failure in Make Rules): Posix is now clear
that make must use set -e.
(Limitations of Builtins) <set>: Clarify more about set -e
behavior.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Limitations of Builtins) <if>: Mention that
exit status bugs don't affect modern targets.
Reported by Andreas Schwab.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Text processing Macros) <m4_normalize>
<m4_strip>: Reference the new m4_ifblank.
Suggested by Mike Frysinger.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Configuration Actions): The input to
config.status should have reasonable line length.
(Limitations of Usual Tools): Document IRIX, HP-UX awk input
line length limit.
Report by Bruno Haible.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (Coding Style): Public third-party macros
should be AC_DEFUN'ed.
Report by John Calcote.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (External Software): Reduce mention of
hand-written help strings.
Reported by Reuben Thomas.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Balancing Parentheses): Fix usage of
@itemize.
Reported by Ralf Wildenhues, fix suggested by Karl Berry.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Making testsuite Scripts): In the example
makefile snippet, $(TESTSUITE) depends on $(srcdir)/package.m4.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* lib/m4sugar/m4sh.m4 (_AS_ESCAPE): Alter API to take first byte
of set separately from rest.
(AS_ESCAPE, _AS_QUOTE_MODERN, AS_TR_SH, AS_VAR_GET): Adjust
callers.
* lib/autoconf/autoheader.m4 (AH_VERBATIM): Avoid duplicate
characters in translit request.
* doc/autoconf.texi (Common Shell Constructs) <AS_ESCAPE>:
Document the macro.
* NEWS: Likewise.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Site Defaults): Add index for config.site.
* THANKS: Update.
Report by Stephen P. Schaefer.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (Preset Output Variables) <CFLAGS>: Copy
advice given by automake on handling variables reserved by GNU
Coding Standards.
Reported by Karl Berry.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Site Defaults): Fix typo in FHS sample file.
Mention use of lib64.
* THANKS: Update.
Reported by Tom Browder, with help from Peter Breitenlohner.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Writing Testsuites): Mention autotest
namespace.
(Writing Testsuites) <AT_INIT>: Mention mandatory macros.
(Making testsuite Scripts): Document AT_PACKAGE_URL.
* tests/Makefile.am (package.m4): Follow our own advice.
* lib/autotest/general.m4 (AT_INIT): Give the user a hint about
package.m4. Enhance --help output.
(_AT_COPYRIGHT_YEARS): New macro, to make copyright bump easier.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_defun_once): Rewrite to be no-op,
rather than warning, on second use, and make sure first use never
occurs out of order.
* tests/m4sugar.at (m4@&t@_require: one-shot initialization):
Enhance test.
* tests/base.at (AC_REQUIRE & AC_DEFUN_ONCE: [Require, expand],
(AC_REQUIRE & AC_DEFUN_ONCE: [Expand, require]): Adjust tests.
* NEWS: Document this.
* doc/autoconf.texi (Macro Definitions) <AC_DEFUN>: Mention
AC_DEFUN_ONCE.
(Prerequisite Macros) <AC_REQUIRE>: Likewise.
(Expanded Before Required): Likewise.
(One-Shot Macros) <AC_DEFUN_ONCE>: Document new semantics.
Reported by Bruno Haible, with suggestion by Paolo Bonzini.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Macro Definitions) <AC_DEFUN>: Add @defmac,
and mention interaction with AC_REQUIRE.
(Prerequisite Macros) <AC_REQUIRE>: Give more detail on user
ordering constraint bug, and how to fix it.
* tests/m4sugar.at (m4@&t@_require: nested): New test.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/install.texi (Particular Systems): For HP-UX, also recommend
-D_XOPEN_SOURCE=500. Needed for the declaration of mbstate_t on
HP-UX 11.11.
Signed-off-by: Eric Blake <ebb9@byu.net>
