Installing PECL YAML on Mac OSX Lion

If you are trying to install YAML via PECL on Lion, you may get an error such as the following.

configure: error: Please install libyaml
ERROR: `/private/tmp/pear/install/yaml/configure --with-yaml' failed

Some solutions on the internet suggest installing it via a package manager.

rvm pkg install libyaml

However, although this process will claim to work, when you come to run the command again, it will fail at the same point. Instead, you need to download libyaml, which you can do here, then extract it, cd into the directory and run the following commands.

make install

You don’t need to sudo. You should now be able to run the install command again.

sudo pecl install --ignore-errors yaml

This time it should be successful.

Missing psych (for YAML output)

If you’re using YAML in Ruby and have it installed via RVM, you might get a notice similar to the following.

It seems your ruby installation is missing psych (for YAML output).
To eliminate this warning, please install libyaml and reinstall your ruby.

You can solve this using the following commands.

rvm pkg install libyaml
rvm reinstall 1.9.3

You may (or even need) to replace 1.9.3 with your exact version number.

PHPUnit on OSX Lion CLI

If you’re trying to run PHPUnit from the terminal in Mac OSX Lion, you may get an error similar to the following.

File/Iterator/Autoload.php failed to open stream

You can resolve this by running the following commands.

curl > go-pear.php
sudo php -q go-pear.php

PHPUnit should now run without errors (or at least, without errors in their code 😉 ).

Cassandra RubyGem on Mac OSX Lion

If you’re trying to run Apache Cassandra with the RubyGem, you may encounter an error similar to the following.

thrift_client(0.8.1 not ~> 0.7.0)

You can fix this by editing the RubyGem.

cd /Library/Ruby/Gems/1.8/gems/cassandra-0.12.1/lib/
vim cassandra.rb

Find the line which sets the dependency.

gem 'thrift_client', '~> 0.7.0'

Change it to the following.

gem 'thrift_client', '~> 0.8.0'

Your script should now run without an error.

PHPUnit and PEAR packages break on Mountain Lion

If you have recently upgraded to Mac OS X Mountain Lion (10.8) you may find that PHPUnit and other PEAR packages no longer work. You may get errors similar to the following.

PHP Copy & Paste Detector

Warning: require(PHPCPD/Autoload.php): failed to open stream: No such file or directory in /Users/chris/pear/bin/phpcpd on line 49

Fatal error: require(): Failed opening required 'PHPCPD/Autoload.php' (include_path='.:') in /Users/chris/pear/bin/phpcpd on line 49

PHP Mess Detector

Warning: require_once(PHP/PMD/TextUI/Command.php): failed to open stream: No such file or directory in /Users/chris/pear/bin/phpmd on line 38

Fatal error: require_once(): Failed opening required 'PHP/PMD/TextUI/Command.php' (include_path='.:') in /Users/chris/pear/bin/phpmd on line 38

Unfortunately, there doesn’t seem to be an easy way to fix them, other then by reinstalling each package.

sudo pear install --force --alldeps phpunit/phpunit
sudo pear install --force --alldeps phpmd/PHP_PMD

The tools should then run as expected.

Mac VNC client location

There are quite a few different VNC clients available for Mac, and most of them are, in my experience, pretty disappointing. And totally unnecessary, because OS X actually comes with a build in VNC viewing client which works fine. For some reason though, Apple have kept it pretty well hidden.

Never fear though, because once you know the location, it’s easy to find and use.


It’s pretty simple, but then I’ve never found the need for all the extra crap a lot of the viewing clients come with – I just want to be able to control a remote computer!

Compiling APD on PHP 5.3

If you try and compile APD on PHP 5.3, you may get an error similar to the following.

error: 'struct _zend_compiler_globals' has no member named 'extended_info'make: *** [php_apd.lo] Error 1

This can be solved by modifying a few of the APD files. To do this, you need to download the APD archive file and uncompress it.

Then make the changes as detailed on the PHP bug tracker. Once this is done, it should install as normal.

sudo make install

APD should now be installed.