PHP « Technical Procedures

Installing the ssh2 PHP extension, with PHP 5.3

Posted by Adam in Fixing Errors, Linux, PHP, Programming on Sunday March 21, 2010

WARNING: Please read before continuing ▼

Difficulty: Moderate
Time: ~5 Minutes
Last Updated: 21st March 2010
Applies to: *NIX

Currently, due to an API change ssh2 will not install via pecl. Despite being a one-line fix, and 5.3 being out for some months now, the maintainers have neglected to make their extension compatible with PHP 5.3

If you recieve an error similar to:

1 2	/tmp/pear/download/ssh2-0.11.0/ssh2.c:52: error: duplicate "static" /tmp/pear/download/ssh2-0.11.0/ssh2.c: In function "zif_ssh2_methods_negotiated":

Then you are affected. To fix this, you need to download and extract the ssh2 package:

1 2	pecl download channel://pecl.php.net/ssh2-<version> tar xvf ssh-<version>.tar

Open up ssh2-<version>/ssh2.c and look for the following block around line 50:

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#ifdef ZEND_ENGINE_2
static
ZEND_BEGIN_ARG_INFO(php_ssh2_first_arg_force_ref, 0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO()
#else
static unsigned char php_ssh2_first_arg_force_ref[] = { 1, BYREF_FORCE };
#endif

From that block, you need to remove the first “static” so it looks like this:

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#ifdef ZEND_ENGINE_2
ZEND_BEGIN_ARG_INFO(php_ssh2_first_arg_force_ref, 0)
ZEND_ARG_PASS_INFO(1)
ZEND_END_ARG_INFO()
#else
static unsigned char php_ssh2_first_arg_force_ref[] = { 1, BYREF_FORCE };
#endif

After you’ve done this, simply repackage and install: