[mod_perl2]: Install error with Makefile.PL - uninitialized value at TestRun.pm

Hi Fred, Hi Todd
I just subscribed to this list and still don't know how to link my message
to your thread from July 10th. Sorry.
I just want to show you my workaround of the same problem: "Install error
with Makefile.PL - uninitialized value at TestRun.pm"

Here my proceedings aiming at a statically mod_perl Apache with Perl 5.14.2
on Debian "squeeze" Linux:

cd ~/src
tar -xvzf perl-5.14.2.tar.gz
cd perl-5.14.2
mkdir "$HOME/perl"
./Configure -des -Dprefix="$HOME/perl" -Dusethreads
make
make test
make install

Making some symlinks... (basically appending a '5' to the name of each
executable in the newly installed $HOME/perl/bin).
su ./perl_version_links.pl /home/dani /usr/local/bin

Some prerequisites:
cpan5
  install CPAN
  reload cpan5
  exit

cpan5
  install YAML
  install LWP
  install CGI
  install Chatbot::Eliza
  install Compress::Zlib
  install Devel::CoreStack
  install Devel::Symdump
  install Digest::MD5
  install IPC::Run3
  exit


And now, making up a statically mod_perl Apache server:

cd ~/src
tar -xvzf httpd-2.2.22.tar.gz
tar -xvzf mod_perl-2.0-current.tar.gz

mkdir "$HOME/apache2"
cd mod_perl-2.0.7/
perl5 Makefile.PL MP_USE_STATIC=1 MP_AP_PREFIX="$HOME/src/httpd-2.2.22"
MP_AP_CONFIGURE="--prefix=$HOME/apache2 --with-mpm=prefork" MP_COMPAT_1X=0

Error:
ERROR from evaluation of
/home/dani/src/mod_perl-2.0.7/Apache-Reload/Makefile.PL: Use of
uninitialized value $v in concatenation (.) or string at
Apache-Test/lib/Apache/TestRun.pm line 1100

Locating line 1100 and adding two print statements just before it:

    my %args = @Apache::TestMM::Argv;
    while (my($k, $v) = each %args) {
print "--> $k\n";
print "---> $v\n";
        $v =~ s/\|/\\|/g;
        $body .= "\n\$Apache::TestConfig::Argv{'$k'} = q|$v|;\n";
    }

Running again:
perl5 Makefile.PL MP_USE_STATIC=1 MP_AP_PREFIX="$HOME/src/httpd-2.2.22"
MP_AP_CONFIGURE="--prefix=$HOME/apache2 --with-mpm=prefork" MP_COMPAT_1X=0

Result:
Configuring Apache/2.2.22 mod_perl/2.0.7 Perl/v5.14.2
--> httpd
---> /home/dani/src/httpd-2.2.22/httpd
--> apxs
ERROR from evaluation of
/home/dani/src/mod_perl-2.0.7/Apache-Reload/Makefile.PL: Use of
uninitialized value $v in concatenation (.) or string at
Apache-Test/lib/Apache/TestRun.pm line 1101.

Ok. As I'm building mod_perl statically, I don't need apxs so I apply the
following workaround: enclose lines 1100 and 1101 in an if-block testing if
$v is defined:

    my %args = @Apache::TestMM::Argv;
    while (my($k, $v) = each %args) {
      if (defined $v) {
        $v =~ s/\|/\\|/g;
        $body .= "\n\$Apache::TestConfig::Argv{'$k'} = q|$v|;\n";
      }
    }

Now, no error and I could proceed with make:

make
make test

...
All tests successful.
Files=242, Tests=2469, 427 wallclock secs ( 4.71 usr  0.94 sys + 372.71
cusr 45.48 csys = 423.84 CPU)
Result: PASS
[warning] server localhost:8529 shutdown
[warning] port 8529 still in use...
done
cd ModPerl-Registry && make test
make[1]: se ingresa al directorio
`/home/dani/src/mod_perl-2.0.7/ModPerl-Registry'
/home/dani/perl/bin/perl -I../blib/arch -I../blib/lib \
        t/TEST  -clean
[warning] setting ulimit to allow core files
ulimit -c unlimited; /home/dani/perl/bin/perl
/home/dani/src/mod_perl-2.0.7/ModPerl-Registry/t/TEST -clean
APACHE_TEST_GROUP= APACHE_TEST_HTTPD= APACHE_TEST_PORT= APACHE_TEST_USER=
APACHE_TEST_APXS= \
        /home/dani/perl/bin/perl -I../blib/arch -I../blib/lib \
        t/TEST  -bugreport -verbose=0
[warning] setting ulimit to allow core files
ulimit -c unlimited; /home/dani/perl/bin/perl
/home/dani/src/mod_perl-2.0.7/ModPerl-Registry/t/TEST -bugreport -verbose=0
/home/dani/src/httpd-2.2.22/httpd  -d
/home/dani/src/mod_perl-2.0.7/ModPerl-Registry/t -f
/home/dani/src/mod_perl-2.0.7/ModPerl-Registry/t/conf/httpd.conf -D APACHE2
-D PERL_USEITHREADS
using Apache/2.2.22 (prefork MPM)

waiting 90 seconds for server to start: ....
waiting 90 seconds for server to start: ok (waited 2 secs)
server localhost:8529 started
t/206.t .............. ok
t/304.t .............. ok
t/404.t .............. ok
t/500.t .............. ok
t/bad_scripts.t ...... ok
t/basic.t ............ ok
t/bin_resp.t ......... ok
t/cgi.t .............. ok
t/closure.t .......... ok
t/dirindex.t ......... ok
t/fatalstobrowser.t .. skipped: fatalsToBrowser known not to work, CGI
version 99.99 or higher is required
t/flush.t ............ skipped: cannot find module 'deflate'
t/ithreads.t ......... ok
t/nph.t .............. ok
t/perlrun_extload.t .. ok
t/prefork.t .......... ok
t/redirect.t ......... ok
t/regex.t ............ ok
t/rewrite_env.t ...... skipped: cannot find module 'mod_rewrite.c'
t/special_blocks.t ... ok
All tests successful.
Files=20, Tests=84, 33 wallclock secs ( 0.39 usr  0.09 sys + 26.39 cusr
3.21 csys = 30.08 CPU)
Result: PASS
[warning] server localhost:8529 shutdown
make[1]: se sale del directorio
`/home/dani/src/mod_perl-2.0.7/ModPerl-Registry'
cd Apache-Reload && make test
make[1]: se ingresa al directorio
`/home/dani/src/mod_perl-2.0.7/Apache-Reload'
/home/dani/perl/bin/perl -I../blib/arch -I../blib/lib \
        t/TEST  -clean
[warning] setting ulimit to allow core files
ulimit -c unlimited; /home/dani/perl/bin/perl
/home/dani/src/mod_perl-2.0.7/Apache-Reload/t/TEST -clean
APACHE_TEST_GROUP= APACHE_TEST_HTTPD= APACHE_TEST_PORT= APACHE_TEST_USER=
APACHE_TEST_APXS= \
        /home/dani/perl/bin/perl -I../blib/arch -I../blib/lib \
        t/TEST  -bugreport -verbose=0
[warning] setting ulimit to allow core files
ulimit -c unlimited; /home/dani/perl/bin/perl
/home/dani/src/mod_perl-2.0.7/Apache-Reload/t/TEST -bugreport -verbose=0
mod_perl 2 was built against Apache sources, we don't know where httpd/apxs
executables are, therefore skipping the test suite execution at
/home/dani/src/mod_perl-2.0.7/Apache-Test/lib/Apache/TestConfig.pm line 371.
make[1]: *** [run_tests] Error 2
make[1]: se sale del directorio
`/home/dani/src/mod_perl-2.0.7/Apache-Reload'
make: *** [run_subtests] Error 2

Again, no apxs needed so I ignore the failure of this last test and proceed
with the install:

make install

Finally, some manual testing (from the mod_perl doc) and everything seems
to work:

Registry Scripts
To enable registry scripts add the following to httpd.conf:

  Alias /perl/ /home/dani/httpd/perl/
  <Location /perl/>
      SetHandler perl-script
      PerlResponseHandler ModPerl::Registry
      PerlOptions +ParseHeaders
      Options +ExecCGI
      Order allow,deny
      Allow from all
  </Location>

and now assuming that we have the following script:

  #!/usr/local/bin/perl5
  print "Content-type: text/plain\n\n";
  print "mod_perl rocks!\n";

saved in /home/dani/httpd/perl/rock.pl. Make the script executable and
readable by everybody:

  % chmod a+rx /home/dani/httpd/perl/rock.pl

Of course the path to the script should be readable by the server too. In
the real world you probably want to have a tighter permissions, but for the
purpose of testing that things are working this is just fine.

Now restart the server and issue a request to
http://localhost/perl/rock.pland you should get the response:

  mod_perl rocks!

If that didn't work check the error_log file.

For more information on the registry scripts refer to the ModPerl::Registry
manpage. (XXX: one day there will a tutorial on registry, should port it
from 1.0's docs).


Handler Modules
Finally check that you can run mod_perl handlers. Let's write a response
handler similar to the registry script from the previous section:

  #file:MyApache2/Rocks.pm
  #----------------------
  package MyApache2::Rocks;

  use strict;
  use warnings;

  use Apache2::RequestRec ();
  use Apache2::RequestIO ();

  use Apache2::Const -compile => qw(OK);

  sub handler {
      my $r = shift;

      $r->content_type('text/plain');
      print "mod_perl 2.0 rocks!\n";

      return Apache2::Const::OK;
  }
  1;

Save the code in the file MyApache2/Rocks.pm, somewhere where mod_perl can
find it. For example let's put it under
/home/dani/httpd/perl/MyApache2/Rocks.pm, and we tell mod_perl that
/home/dani/httpd/perl/ is in @INC, via a startup file which includes just:

  use lib qw(/home/dani/httpd/perl);
  1;

and loaded from httpd.conf:

  PerlRequire /home/dani/httpd/perl/startup.pl

Now we can configure our module in httpd.conf:

  <Location /rocks>
      SetHandler perl-script
      PerlResponseHandler  MyApache2::Rocks
  </Location>

Now restart the server and issue a request to http://localhost/rocks and
you should get the response:

  mod_perl 2.0 rocks!

If that didn't work check the error_log file.


Cheers,
Dani