shel scripts no longer export BIN_SH, due to configuration
hassles with this.
* lib/m4sugar/m4sh.m4 (AS_BOURNE_COMPATIBLE): Don't set BIN_SH
or DUALCASE.
(_AS_DETECT_BETTER_SHELL): Don't look in /usr/bin/posix.
Use AS_EXECUTABLE_P rather than test -f.
(AS_SHELL_SANITIZE): Set DUALCASE.
(AS_EXECUTABLE_P): Just invoke as_executable_p.
(_AS_TEST_PREPARE): Default to test -f, rather than to nothing.
fseeko testing program twice; just use the earlier result.
* lib/autoconf/specific.m4 (_AC_SYS_LARGEFILE_MACRO_VALUE):
Set cache var to 'unknown' (not 'no') if leaving the macro unset
still doesn't let the program compile.
(AC_SYS_LARGEFILE): Test for _LARGE_FILES only if earlier tests
failed.
* lib/autoconf/functions.m4: Fix problems reported by Ralf Wildenhues.
(AC_FUNC_ERROR_AT_LINE): Don't bother to check for error.h. Just
include it, without including anything else.
(AC_FUNC_FSEEKO): Avoid gcc -Wall warnings about constant
expressions.
(AC_FUNC_STRNLEN): Require AC_USE_SYSTEM_EXTENSIONS.
* lib/autoconf/functions.m4 (AC_FUNC_ERROR_AT_LINE): Check for
`error.h', and include it, for a `error_at_line' prototype.
Use a nonempty format string in the link test.
* lib/autoconf/functions.m4 (AC_FUNC_WAIT3): Include <sys/wait.h>,
for a declaration of wait3.
warnings (uninitialized value).
(AC_FUNC_UTIME_NULL): Likewise, test for and include <utime.h> if
present.
* lib/autoconf/types.m4 (AC_TYPE_LONG_LONG_INT): Likewise, add
parentheses.
(AC_STRUCT_TM): Likewise, avoid unused variables.
argument to `--prefix' for sub-configure scripts.
Pass `--silent' to sub-configure scripts.
* tests/torture.at (Configuring subdirectories): Add tests
for both changes.
* doc/autoconf.texi (Setting Output Variables): Fix example to
not show `--silent' being passed to a `configure' re-run.
* lib/autoconf/general.m4 (AC_CONFIG_MACRO_DIR): Do not check
for the existence of the directory at configure-time. That's
too late, anyway, and possibly the directory isn't part of the
distribution. Problem reported by Stefan Seefeld.
works with GNU M4 1.4.3 again; make the normalized form
match the current m4 message; fix the description.
* test/tools.at (autom4te cache): Adapt to the change.
to catch glibc bug 2821
<http://sourceware.org/bugzilla/show_bug.cgi?id=2821>.
Merge from gnulib as follows: Use AC_CHECK_HEADERS_ONCE instead of
AC_CHECK_HEADERS, and likewise for AC_CHECK_FUNCS_ONCE and
AC_CHECK_FUNCS. Don't check for stdlib.h, since we now
assume C89.
f90/f95 because the latter drivers of AIX Fortran 9.1 do not
accept files with extension `.f'. For consistency, also prefer
xlf over f77.
* doc/autoconf.texi (Fortran Compiler): Remove mention of bug
from last patch.
old AC_COMPUTE_INT, which now behaves like _AC_COMPUTE_INT
except the first two arguments are reversed.
* doc/autoconf.texi (Caching Results): New macro AC_CACHE_CHECK_INT.
(Generic Compiler Characteristics): AC_COMPUTE_INT no longer
caches nor outputs a diagnostic. Suggested by Bruno Haible.
* lib/autoconf/general.m4 (AC_CACHE_CHECK_INT): New macro,
equivalent to the old AC_COMPUTE_INT.
(AC_COMPUTE_INT): No longer caches or reports. New signature.
All uses changed to AC_CACHE_CHECK_INT.
* tests/base.at (AC_CACHE_CHECK_INT): New test.
* tests/mktests.sh (ac_exclude_lsit): Add AC_CACHE_CHECK_INT.
and AC_REPLACE_FNMATCH are now obsolescent in Autoconf. New
programs should use their Gnulib counterparts.
* doc/autoconf.texi (Particular Functions): Likewise.
(Macro Names, testsuite Invocation): Replace uses of these
obsolete macros with uses of non-obsolete macros.
* doc/autoconf.texi (Particular Programs): YYTEXT_POINTER is
for the default, which the user can override.
* lib/autoconf/programs.m4 (AC_PROG_LEX): Let _AC_PROG_LEX_YYTEXT_DECL
deal with LEXLIB.
(_AC_PROG_LEX_YYTEXT_DECL): Handle caching correctly; the old code
didn't work if some values were cached but not others. Test for
broken lex libraries like native ia64-hp-hpux11.22; see
<http://sources.redhat.com/ml/binutils/2003-12/msg00337.html>, and
work around the problem by preferring an empty LEXLIB to -lfl or
-ll. Let the user set LEXLIB='' to indicate no library needed.
