gnupg-1.3.2 (the latest) does not build under PHP 5.4.x or PHP 5.5.x... there are numerous suggested patches but nothing official.
This extension requires the » gpgme library
gnupg-1.3.2 (the latest) does not build under PHP 5.4.x or PHP 5.5.x... there are numerous suggested patches but nothing official.gnupg-1.3.3 is now out which does correctly build again PHP 5.4.x and 5.5.x