Ubuntu 12.04 (Precise) & PHP 5.2.x

If you get lots of:

configure: error: Cannot find libXXX under /usr.

when you attempt to ./configure PHP 5.2.x (and possibly earlier series as well), try appending:

--with-libdir=lib/x86_64-linux-gnu

This instructs the script to look for libraries under /usr/lib/x86_64-linux-gnu instead of /usr/lib. If this doesn’t work for you, try running:

$ sudo updatedb
$ locate 'libXXX' | grep 'so$'

Which should output the directory where the binary libXXX (e.g., libmysqlclient) is installed.

If you also see this at the linking stage:

ext/openssl/xp_ssl.c: undefined reference to `SSLv2_server_method'

You would want to patch your 5.2.17 source with debian_patches_disable_SSLv2_for_openssl_1_0_0.patch.