1003.1-2001's requirements for CDPATH. Give a simpler workaround
for the CDPATH problem. Document PWD.
(Limitations of Builtins): Document the problem that "cd $foo" and
"ls $foo" may refer to different directories in shells conforming
to POSIX 1003.1-2001. Use PS1 rather than CDPATH for "unset"
example, since the old example is now out of date.
* lib/autoconf/general.m4 (_AC_INIT_SRCDIR): Reject FOO if "cd
FOO" and "ls FOO" talk about different directories; this catches
problems when POSIX 1003.1-2001 "cd" fails due to symlink
spaghetti.
* lib/m4sugar/m4sh.m4 (AS_SHELL_SANITIZE): Use AS_UNSET instead
of rolling our own unset.
(_AS_PREPARE): $as_unset CDPATH instead of AS_UNSETting it, since
in practice we needn't worry about CDPATH if unset doesn't work.
* Makefile.in, aclocal.m4, bin/Makefile.in,
config/Makefile.in, doc/Makefile.in, lib/Makefile.in,
lib/Autom4te/Makefile.in, lib/autoconf/Makefile.in,
lib/autoscan/Makefile.in, lib/autotest/Makefile.in,
lib/emacs/Makefile.in, lib/m4sugar/Makefile.in, man/Makefile.in,
tests/Makefile.in: Regenerate with Automake 1.6.3.
* config/config.guess, config/config.sub, config/mkinstalldirs:
Update.
* configure: Regenerate with self.
of rolling our own unset.
(_AS_PREPARE): $as_unset CDPATH instead of AS_UNSETting it, since
in practice we needn't worry about CDPATH if unset doesn't work.
1003.1-2001's requirements for CDPATH. Give a simpler workaround
for the CDPATH problem. Document PWD.
(Limitations of Builtins): Document the problem that "cd $foo" and
"ls $foo" may refer to different directories in shells conforming
to POSIX 1003.1-2001. Use PS1 rather than CDPATH for "unset"
example, since the old example is now out of date.
(&xsystem): Use WIFEXITED and WEXITSTATUS instead of decoding $? by
hand, which is not portable.
(&error): New.
* bin/autom4te.in: Use them.
Use &error instead of die.
* tests/m4sugar.at (m4_warn, m4_require: circular dependencies):
Adjust.
fixing a bug introduced by the previous patch.
(Limitations of Make): Add a 'target lookup' subentry in the
'VPATH' entry. Rewrite all `make' occurences as `@command{make}'.
* bin/autom4te.in: Remove --include-envvar and --site-macro-subdir
options and use $AUTOM4TE_PATH.
* doc/autoconf.texi: Remove documentation of autom4te
--include-envvar and --site-macro-subdir options and document
use of $AUTOM4TE_PATH.
* lib/autom4te.in: Remove --include-envvar and --site-macro-subdir
arguments from each language section.
* Makefile.am (MAKEINFO): Remove; it's a user-specified macro.
Replace with:
(AM_MAKEINFOFLAGS): New macro.
* doc/Makefile.am (MAKEINFO, AM_MAKEINFOFLAGS): Likewise.
* Makefile.am (INSTALL): Use the new macros.
Use -o rather than --output, since "missing" does not grok --output.
Use PATH="/nonexistent;.", not PATH=".;.", as FreeBSD ksh2002
apparently treats PATH="nonexistent" as if it contained ".".
Bug reported by Stefan `Sec' Zehl.
Use PATH="/nonexistent;.", not PATH=".;.", as FreeBSD ksh2002
apparently treats PATH="nonexistent" as if it contained ".".
Bug reported by Stefan `Sec' Zehl.
