* lib/autotest/general.m4 (AT_INIT) <PREPARE_TESTS>: Check for
absolute names before path walk.
* THANKS: Update.
Suggested by Allan Clark.
Signed-off-by: Eric Blake <ebb9@byu.net>
* bin/autoreconf.in (autoreconf_current_directory): Collapse
newlines in the autoconf trace output, similar to how automake
invokes autoconf, so that newlines do not matter in the argument
to AC_CONFIG_SUBDIRS.
* tests/torture.at (Deep Package): Expose this issue in the
test.
* THANKS: Update.
Report by Nathan Schulte.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* lib/autoconf/functions.m4 (AC_FUNC_MMAP): Make the test more
portable: Actually check for <sys/param.h>, and only use MAP_FIXED
on an address previously returned from mmap.
* THANKS: Update.
Reported by Corinna Vinschen.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Common Shell Constructs) <AS_DIRNAME>:
Restore documenatation, since dirname mentions it.
Reported by Peter Johansson.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/autoconf/status.m4 (_AC_OUTPUT_FILES_PREPARE): No need to
concatenate an empty second string, when we have exactly 148
characters to substitute.
* tests/torture.at (Substitute a 2000-byte string): Add test
exposure for runs of backslashes near the 148 character limit.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* tests/torture.at (Substitute and define special characters):
Double the backslash before the double-quote in
AC_DEFINE_UNQUOTED, as documented for here-documents.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (Portable C and C++): Provide uref rather than
xref when building for html.
Reported via Karl Berry.
Signed-off-by: Eric Blake <ebb9@byu.net>
* tests/c.at (AC_OPENMP and C, AC_OPENMP and C++): Override
`ACLOCAL=true' for autoreconf, the tests don't need aclocal.
* tests/fortran.at (AC_OPENMP and Fortran 77)
(AC_OPENMP and Fortran): Likewise.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (AC_PROG_AWK, AC_PROG_GREP, AC_PROG_EGREP,
AC_PROG_FGREP, AC_PROG_INSTALL, AC_PROG_MKDIR_P, AC_PROG_LEX,
AC_PROG_YACC, AC_CHECK_PROG, AC_CHECK_PROGS, AC_PATH_PROG,
AC_PATH_PROGS): Don't suggest to use the cache variable, only to
override it, or preferably, a non-cache variable associated with
the test.
(AC_PROG_SED): Likewise. Fix name of cache variable.
(AC_FUNC_GETMNTENT): Fix name cache variable.
(AC_FUNC_LSTAT): Fix typo.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* lib/autoconf/fortran.m4 (AC_LANG_FUNC_LINK_TRY(Fortran): New.
* tests/c.at (AC_C_RESTRICT and C++, AC_OPENMP and C)
(AC_OPENMP and C++): New tests.
* tests/fortran.at (AC_OPENMP and Fortran 77)
(AC_OPENMP and Fortran): New tests.
* THANKS: Update.
Report by Bart Oldeman.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* lib/m4sugar/m4sh.m4 (AS_VAR_IF, AS_IDENTIFIER_IF)
(AS_LITERAL_IF): Parse fewer bytes during expansion, by visiting
if-true and if-false arguments only once.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_escape): Don't use regex if string is
already sane, by copying from AS_LITERAL_IF. Move guts...
(_m4_escape): ...into new helper.
Signed-off-by: Eric Blake <ebb9@byu.net>
* lib/m4sugar/m4sugar.m4 (m4_escape): New macro.
(m4_text_wrap): Use it to avoid issues with embedded [ and ].
* tests/m4sugar.at (m4@&t@_text_wrap): Test it.
* NEWS: Document this.
* doc/autoconf.texi (Text processing Macros) <m4_escape>:
Likewise.
Reported by Mike Frysinger.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Runtime) <AC_RUN_IFELSE>: Mention that
compiled test program still exists during if-true branch.
* THANKS: Update.
Reported by Stefano Lattarini, suggestion by Ralf Wildenhues.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/install.texi (Basic Installation, Installation Names): Fix
typos in last patch.
Repored by Ralf Wildenhues.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/install.texi (Basic Installation): Clarify installcheck
behavior.
(Installation Names): Mention that --prefix only overrides
directory locations not specified on the command line. Prefer
/alternate/directory over /path/to. Remove a sentence targeted to
the developer, not the user.
* THANKS: Update.
Suggested by Alfred M. Szmidt.
Signed-off-by: Eric Blake <ebb9@byu.net>
* doc/autoconf.texi (Debugging): Recommend to use "bash -n
configure". Recommend the use of result variables as an
alternative to run-if-true/run-if-false parameters.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (Limitations of Usual Tools) <sed>: '*' does
not work after subexpressions, \{M,N\} only after one-character
expressions. From GCC PR 38923.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* doc/autoconf.texi (Macros and Submakes): Automake makefiles
provide AM_MAKEFLAGS to help with overriding macros in submake
invocations.
Prompted by bug report from Bruno Haible.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* lib/autoconf/general.m4 (AC_PACKAGE_NAME): Remove what are excess
quotes around the package name, now that m4_tolower's result is quoted.
* tests/base.at (AC_INIT): Test for this.
Signed-off-by: Jim Meyering <meyering@redhat.com>
DJGPP bash 2.04 has a bug in that `return $ac_retval' done in a
shell function which also contains a command substitution causes
the shell to barf. For more details and a fix see:
<http://www.delorie.com/djgpp/mail-archives/browse.cgi?p=djgpp-workers/2009/09/09/03:35:08>
Possible workaround include putting the `return' in a subshell
or calling another function to set the status.
* lib/autoconf/general.m4 (_AC_PREPROC_IFELSE_BODY)
(_AC_COMPILE_IFELSE_BODY, _AC_LINK_IFELSE_BODY)
(_AC_RUN_IFELSE_BODY, _AC_COMPUTE_INT_BODY): Use AS_SET_STATUS
instead of `return'.
* doc/autoconf.texi (Common Shell Constructs, Shell Functions):
Document the issue.
* THANKS: Update.
Report by Rugxulo and Reuben Thomas.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* lib/autoconf/general.m4 (_AC_INIT_DEFAULTS): If $DJGPP is
nonempty, do not dup fd 0 to AS_ORIGINAL_STDIN_FD, do not close
fd 0.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
The DJGPP compiler may create both `a.out' and `a.exe' without -o,
and both `conftest' and `conftest.exe' with `-o conftest', but not
with `-o conftest.exe'.
* lib/autoconf/lang.m4 (_AC_COMPILER_EXEEXT_O): Also remove
`conftest' without $ac_exeext suffix.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
* lib/autoconf/general.m4 (AC_SITE_LOAD, AC_CACHE_LOAD): Do not
load the cache or site file if it is `/dev/null', as DJGPP treats
it as a regular file, but the shell then warns about it later.
Fixes several test suite failures on DJGPP.
Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
