With newer perl (e.g., Fedora 10's 4:5.10.0-68.fc10), tests/CuTmpdir.pm
stopped removing its temporary directories, with diagnostics like this:
cannot remove path when cwd is /c/coreutils/tests/misc/seq.tmp-e2up \
for /c/coreutils/tests/misc/seq.tmp-e2up: at \
/usr/lib/perl5/5.10.0/File/Temp.pm line 902
Chdir out of the target directory before that code runs:
* tests/CuTmpdir.pm (END): chdir '..'.
(chmod_tree): Remove explicit "chdir $dir".
defined, because it then goes wild and changes the mode of all
directories below $HOME. Undefined $dir can happen if the test
is to be skipped because of an unsafe working directory name.
* tests/CuTmpdir.pm: New file.
* tests/Makefile.am (EXTRA_DIST): Add CuTmpdir.pm.
* tests/misc/od, tests/misc/base64, tests/misc/basename:
* tests/misc/cut, tests/misc/date, tests/misc/dirname:
* tests/misc/expand, tests/misc/fold, tests/misc/head-elide-tail:
* tests/misc/paste-no-nl, tests/misc/pr, tests/misc/sha224sum:
* tests/misc/sha256sum, tests/misc/sha384sum, tests/misc/sha512sum:
* tests/misc/sort-merge, tests/misc/stat-printf, tests/misc/test-diag:
* tests/misc/wc-files0-from, tests/misc/xstrtol:
* tests/dd/skip-seek, tests/dircolors/simple, tests/du/files0-from:
* tests/expr/basic, tests/factor/basic, tests/fmt/basic:
* tests/ls-2/tests, tests/md5sum/basic-1, tests/md5sum/newline-1:
* tests/seq/basic, tests/sha1sum/basic-1, tests/sha1sum/sample-vec:
* tests/sum/basic-1, tests/tsort/basic-1, tests/unexpand/basic-1:
* tests/mv/i-1, tests/rm/empty-name, tests/rm/unreadable: Use it.
* tests/misc/test-diag: Use "$ENV{abs_top_builddir}/src/test",
not "../../src/test", so it works when run from a subdirectory.
* tests/ls-2/tests: Create temp files and dirs from within the perl
script, so that they're removed, when run from a subdirectory.
