$ cat /etc/*release
PRETTY_NAME="Debian GNU/Linux 7 (wheezy)"

$ pecl install gearman
...
configure: error: Please install libgearman

$ apt-get install libgearman-dev

$ pecl install gearman
...
configure: error: libgearman version 1.1.0 or later required

$ pecl install gearman-1.0.3
.. worked!