under FreeBSD.
Reported by Alec Wolman.
* acspecific.m4 (AC_FUNC_GETLOADAVG): Check for `getloadavg'
without any additional library.
Fixes Autoconf/109.
classes with `case'. Use `expr' instead.
Suggested by Paul Eggert.
* doc/autoconf.texi (Limitations of Builtins): Explain expr, the
`x' trick, and negated character classes.
* acgeneral.m4 (AC_CHECK_TOOLS): New.
* aclang.m4 (AC_PROG_CXX, AC_PROG_CC, AC_PROG_F77): Use new
AC_CHECK_TOOLS macro instead of AC_CHECK_PROGS so that a cross
compiler is found by default with --host.
* doc/autoconf.texi (Generic Programs, Manual Configuration):
Describe new AC_CHECK_TOOLS macro. Fix unclear working about
AC_CHECK_PROGS.
* tests/Makefile.am (FILTER_MACROS): Adjust.
* acspecific.m4 (AC_XENIX_DIR, AC_DYNIX_SEQ, AC_IRIX_SUN,
AC_SCO_INTL): Wake up a few zombies.
* doc/autoconf.texi: Adjust.
* tests/aclocal.m4 (AC_ENV_SAVE): Likewise.
(Special Shell Variables): Adjust.
(Shellology): New section. Introduce bash and zsh.
(Special Shell Variables): Some data on NULLCMD.
(Quotation Thumb Rule): Rename as
(Quotation Rule of Thumb): this.
* acgeneral.m4 (AC_SHELL_UNSET): Remove.
(AC_SHELL_UNSETENV): Rename as...
(AC_SHELL_UNSET): this.
(_AC_INIT_PREPARE_ENVIRONMENT): Prepare bash and zsh.
Adjust to AC_SHELL_UNSET.
AC_CANONICAL_SYSTEM was run, then the value of `$build' given by
the user was saved into `$build_alias', and `$build' was
normalized using `config.sub'.
Now, let `--build' set `$build_alias' so that scripts with or
without `AC_CANONICAL_BUILD' have the same semantics. This allows
to use `AC_CHECK_TOOL' without requiring `config.guess' and
`config.sub' (which was bizarre anyway).
* acgeneral.m4 (_AC_INIT_PARSE_ARGS): --build, --host and --target
set `build_alias' etc.
After the option handling, set host to $host_alias etc. for
bugward compatibility.
(AC_CANONICALIZE): Mutate into...
(_AC_CANONICAL_SPLIT): this, which does not canonicalize, it just
computes `$foo_os' etc.
(_AC_CANONICAL_THING): Remove, too confusing.
(AC_CANONICAL_BUILD): Adjust.
Do not assign any value to `build_alias', just compute `build', and
`build_{cpy, vendor, os}'.
(AC_CANONICAL_HOST, AC_CANONICAL_TARGET): Likewise.
(AC_CHECK_TOOL_PREFIX): Fire your rule when `$host_alias' is
given, not when `$host != $build'.
* acgeneral.m4 (sinclude): Fix typo.
Now work with other languages than C and C++.
* acspecific.m4 (AC_EXEEXT, AC_OBJEXT): Use
AC_COMPILE_IFELSE/AC_LINK_IFELSE and AC_LANG_PROGRAM instead of
ad hoc code.
Use `$ac_ext' instead of listing `.c', `.C' etc.
Use AC_CACHE_CHECK.
* doc/autoconf.texi (System Services): Adjust.
for special environments.
* acspecific.m4 (AC_CYGWIN, AC_EMXOS2, AC_MINGW32): AU defined to
nothing. Replace them by...
(_AC_CYGWIN, _AC_EMXOS2, _AC_MINGW32): these, which are
automatically called by...
(AC_EXEEXT): this.
* doc/autoconf.texi (System Services, Obsolete Macros): Adjust.
into...
(Limitations of Builtins): this new node.
Document limitations of `exit', `export' and `case'.
Welcome the documentation of `test' from...
(Limitations of Usual Tools): here.
This is important if you want to redefine AC_INIT or some of its
sub macros (eeerk!), or if you want to use user defined macros
before AC_INIT.
Suggested by Didier Verna.
* acgeneral.m4 (_AC_INIT): Don't include `acsite.m4' and
`aclocal.m4'.
* autoconf.sh (run_m4, run_m4f): Do it.
AC_FUNC_GETLOADAVG introduced a bug which already happened (see
Mon Nov 11 18:02:58 1996 David J MacKenzie).
* acgeneral.m4 (AC_CHECK_LIB): Use a less tempting name:
s/ac_save_LIBS/ac_check_lib_save_LIBS/.
`--cache-file=config.cache'.
* acgeneral.m4 (_AC_INIT_PARSE_ARGS): Let `configure' support
`--config-cache' and `-C'.
Report them in `--help'.
Fix the display of missing argument.
(_AC_OUTPUT_SUBDIRS): Adjust.
* doc/install.texi (Invoking configure): Rename the node as
(Running configure scripts): this, the name of the chapter.
(Operation Controls): Rename as...
(Invoking configure): this.
Document the new options.
* doc/autoconf.texi (direntry): Huh? What is this `aclocal' doing
here? Point to `Invoking configure'.
(Cache Files): No need to document the disabling of the cache.
* acgeneral.m4 (_AC_OUTPUT_FILES): Fix the computation of
`ac_file_inputs' for `$ac_given_srcdir' containing a colon.
(AC_CHECK_MEMBERS, AC_PATH_PROG): s/ac_save_ifs/ac_save_IFS/.
Meyering's `chown.m4' serial 4.
(AC_FUNC_GETGROUPS): New macro, based on Jim Meyering's
`getgroups.m4' serial 3.
(AC_FUNC_MEMCMP): Updated, based on Jim Meyering's `memcmp.m4'
serial 3.
(AC_FUNC_MALLOC): New macro, based on Jim Meyering's
`malloc.m4' serial 3.
(AC_FUNC_MMAP): Include `stdlib.h' when `STDC_HEADERS'.
* acfunctions: Sort.
Add `chown' and `malloc', point `getgroups' to `AC_FUNC_GETGROUPS'
instead of `AC_TYPE_GETGROUPS'.
* doc/autoconf.texi (Particular Functions): Adjust.
`config.status'. Fix and test.
* acgeneral.m4 (_AC_OUTPUT_CONFIG_STATUS): Use
`$ac_configure_args' directly, no via a tmp variable.
* tests/torture.m4 (command line interface): Test with more than
one argument.
(AC_INIT): Dispatch your arguments either to _AC_INIT_PACKAGE or
to AC_CONFIG_SRCDIR.
(AU::AC_INIT): New.
* configure.in: Adjust.
Use `#', not `dnl'.
* doc/autoconf.texi (configure.in Layout): Document the new form
of AC_INIT.
Document AC_CONFIG_SRCDIR.
(Obsolete Macros): Document the old one.
`\$foo', the quotes are needed only for `\$[1]', `\$[@]' etc.
Prefer `$$1' to `[$]$1', `$foo' to `[$]foo', `$[1]' to `[$]1' etc.
* aclang.m4: Likewise.
* acspecific.m4: Likewise.
Rename as:
(_AC_PROG_CC_GNU, _AC_PROG_CXX_GNU, _AC_PROG_F77_GNU): these.
Compute the value of GCC, GXX and G77 here.
Set to `no' (instead of empty) if not the GNU compiler.
(AC_PROG_CC, AC_PROG_CXX, AC_PROG_F77): Adjust.
* doc/autoconf.texi: Adjust.
Using --host enables cross-compilation.
* acgeneral.m4 (_AC_INIT_PARSE_ARGS): `--host' enables cross
compilation.
(AC_CANONICAL_BUILD): The help string should explicitly mention
cross compilation.
* aclang.m4 (AC_LANG(C), AC_LANG(C++), AC_LANG(Fortran 77)): Don't
set `cross_compiling'.
(AC_PROG_CC, AC_PROG_CXX, AC_PROG_F77): Run your `WORK' partner
only if not cross-compiling.
(AC_PROG_CC_WORKS, AC_PROG_CXX_WORKS, AC_PROG_F77_WORKS):
If does not work, don't assume an implicit cross-compilation:
fail.
* doc/autoconf.texi: Adjust.
