Problems dealing with installing ZeroMQ on various platforms

gistfile1.txt

sudo aptitude install python-software-properties
sudo add-apt-repository ppa:chris-lea/libpgm
sudo add-apt-repository ppa:chris-lea/zeromq
sudo aptitude update
sudo aptitude install uuid-dev libzmq-dev uuid libzmq1
cpan ZeroMQ

I then cloned the zguide git repo to try out some examples

git clone git://github.com/imatix/zguide.git
cd zguide/examples/Perl
chmod +x *.pl
perl -pi s'{/usr/bin/perl}{/usr/bin/env perl}'

I tried out the durasub.pl example, because I was curious about the pub/sub feature.

I bumped into a segfault with ZMQ_PUSH documented here,
https://github.com/lestrrat/ZeroMQ-Perl/issues/10, so I tried building from git.

git clone git://github.com/lestrrat/ZeroMQ-Perl.git
cpan Module::Install::AuthorTests \
     Module::Install::CheckLib \
     Module::Install::ReadmeFromPod \
     Module::Install::TestTarget \
     Module::Install::XSUtil \
     Test::Fatal \
     Test::Requires \
     Test::TCP \
     Devel::CheckLib
perl Makefile.PL
make
make test
make install

Unfortunately this didn't help with the problem, so I decided to comment on the aforementioned
issue, in hope of getting it solved. A got feedback that I should try to produce a gdb backtrace.

This gave me a problem that resulted in me unable to get a backtrace because of some threading issues.
After googling some I found this link, http://forums.opensuse.org/forums/english/other-forums/development/programming-scripting/412939-gdb-unable-debug-application.html?s=3640cede1a28dfa34d36e903900a82b3#post1975288
that suggested I LD_PRELOAD the pthread library.

And actually, running LD_PRELOAD=/lib/libpthread.so.0 ./durasub.pl allows it to run without segmentation fault.

After a lot of debugging I tried to upgrade my perlbrew and install perl 5.14.2 with ithreads enabled, and it worked flawlessly.
No segmentation fault there.

Another perl ZeroMQ user, Al Tobey (http://tobert.org/), told me that I can use the D_REENTRANT flag
to the perl build to ensure pthread is linked in. I decided that if I was actually going to bother
to build a new perl binary, I might as well ensure I have threading enabled, so that I can
try out all the fancy threading-related features of ZeroMQ as well.

So, moral of the story is. If you've got segmentation faults, ensure your perl binary is compiled
with the necessary flags.



salt install (mostly from source)
aptitude install python-software-properties
add-apt-repository ppa:chris-lea/libpgm
add-apt-repository ppa:chris-lea/zeromq
aptitude update
aptitude install uuid-dev libzmq-dev uuid libzmq1 python-pip python-dev swig python-m2crypto python-crypto python-yaml
pip install pyzmq
pip install jinja2
pip install msgpack-python
pip install https://github.com/saltstack/salt/tarball/develop