cd /usr/local/src/

Step 2: Download Required Modules

Download GNUPG, libgpg-error and GNUPGME (Made Easy) from http://www.gnupg.org/download/ and GNUPG PHP Extension from http://pecl.php.net/get/

wget ftp://ftp.gnupg.org/gcrypt/gnupg/gnupg-1.4.9.tar.gz
wget ftp://ftp.gnupg.org/gcrypt/libgpg-error/libgpg-error-1.7.tar.bz2
wget ftp://ftp.gnupg.org/gcrypt/gpgme/gpgme-1.1.8.tar.bz2
wget http://pecl.php.net/get/gnupg-1.3.1.tgz

Step 3: Extract All the downloaded Modules

tar -zvf gnupg-1.4.9.tar.gz
tar -jxvf libgpg-error-1.7.tar.bz2
tar -jxvf gpgme-1.1.8.tar.bz2
tar -zxvf gnupg-1.3.1.tgz

Step 4: Installation of GNUPG

cd /usr/local/src/gnupg-1.4.9
./configure
make ; make install

Step 5: Installation of LibGPG-Error

cd /usr/local/src/libgpg-error-1.7
./configure
make ; make install

Step 6: Installation of GPGME

cd /usr/local/src/gpgme-1.1.8.tar
./configure --with-gpgconf=/root/.gnupg/gpg.conf
make ; make install

Step 7: Installation GNUPG PHP Extension

cd /usr/local/src/gnupg-1.3.1
phpize
./configure
make ; make install

Step 8: Enable PHP Extension

echo 'extension=gnupg.so' >> /usr/local/lib/php.ini
                OR
echo 'extension=gnupg.so' >> /etc/php.ini
                OR
Use the PHP where php configuration file i.e. php.ini is located.

TROUBLESHOOTING

It happens sometime that after loading gnupg it doesn’t shows it in PHP info OR you get Message “error while loading shared libraries: libgpgme.so.11: cannot open shared object file: No such file or directory”. You can check the same using following command

[root@support007 ~]# ldd /usr/local/lib/php/extensions/no-debug-non-zts-20060613/gnupg.so
    libgpgme.so.11 => not found
    libc.so.6 => /lib/libc.so.6 (0x002be000)
    /lib/ld-linux.so.2 (0x00c94000

The main reason for this problem is that the server doesn’t load libraries from /usr/local/lib folder. To fix this problem just add ‘/usr/local/lib‘ to /etc/ld.so.conf and run ldconfig.

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