tests: Accommodate a shell that is not in /bin/sh. * tests/init.sh (setup_): Set srcdir and builddir. (BOURNE_SHELL): New variable. * modules/acl-tests (Depends-on): Add 'test-framework-sh'. * modules/file-has-acl-tests (Depends-on): Likewise. * modules/copy-file-tests (Depends-on): Likewise. * tests/test-set-mode-acl-1.sh: Use the test framework. Invoke shell scripts through $BOURNE_SHELL. * tests/test-set-mode-acl-2.sh: Likewise. * tests/test-copy-acl-1.sh: Likewise. * tests/test-copy-acl-2.sh: Likewise. * tests/test-file-has-acl-1.sh: Likewise. * tests/test-file-has-acl-2.sh: Likewise. * tests/test-copy-file-1.sh: Likewise. * tests/test-copy-file-2.sh: Likewise. * tests/test-set-mode-acl.sh (builddir): Consider value set by the invoker. * tests/test-copy-acl.sh (builddir): Likewise. * tests/test-file-has-acl.sh (builddir): Likewise. * tests/test-copy-file.sh (builddir): Likewise. * tests/test-vc-list-files-cvs.sh: Don't create shims for executables in build-aux/. Instead, invoke shell scripts through $BOURNE_SHELL. * tests/test-vc-list-files-git.sh: Likewise.

@node Obsolete modules
@section Obsolete modules

@cindex Obsolete modules
Modules can be marked obsolete.  This means that the problems they fix
don't occur any more on the platforms that are reasonable porting targets
now.  @code{gnulib-tool} warns when obsolete modules are mentioned on the
command line, and by default ignores dependencies from modules to obsolete
modules.  When you pass the option @code{--with-obsolete} to
@code{gnulib-tool}, dependencies to obsolete modules will be included,
however, unless blocked through an @code{--avoid} option.  This option
is useful if your package should be portable even to very old platforms.

In order to mark a module obsolete, you need to add this to the module
description:

@example
Status:
obsolete

Notice:
This module is obsolete.
@end example