1.5.18: Perl regression tests fail when lib directory is present

[Andrew Ho]

Hello,

It appears that on the latest version of Cygwin's Perl, Perl modules with 
regression tests (for example, ones you can download from CPAN) fail "make 
test" on every other test. I did some experimentation and this appears to 
happen only if the modules are in a subdirectory (typically "lib") rather 
than in the install root.

How to reproduce:

     * Upgrade to latest versions of all Cygwin packages (probably
       Perl is the only relevant one)

     * Download any CPAN module (or create a Perl module) whose files
       are in a "lib" subdirectory. Lingua::EN::Inflect is an arbitrary
       example of one that is unlikely to be already installed.

     * Run through the usual Perl install steps:
       perl Makefile.PL && make && make test

     * Observe that "make test" fails on every other test (odd numbered
       runs, apparently).

I have reduced this breakage to the smallest possible test case:
http://www.zeuscat.com/andrew/src/TestModule.tar.gz

For some reason, this doesn't appear to break modules that are tested 
under the CPAN shell ("make test" passes for modules built that way).

The Perl package is 5.8.7-2. Here is the output of uname -srm:

     CYGWIN_NT-5.1 1.5.18(0.132/4/2) i686

I and my co-workers have reproduced this on several different computers, 
all running Windows XP.

Humbly,

Andrew

----------------------------------------------------------------
Andrew Ho                                      andrew@tellme.com
Staff Engineer                                      650-930-9062
Tellme Networks, Inc.                     http://www.tellme.com/
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