#install under Ubuntu 16.04:
    * if you have access to PHP7.1:
        <sudo> apt install php7.1-gd && <sudo> systemctl restart apache2
    * if you have access to PHP7.0:
        <sudo> apt install php7.0-gd && <sudo> systemctl restart apache2

------------------------------------------------
Qussayyon Qamaron: Qusai.zf2gmailcom

Instructions how to compile bundled version on Linux:
http://stackoverflow.com/questions/35560150/php-gd-bundled-extension-without-recompiling-php-solution

It should be noted that it might be pretty easy to install gd without the need to recompile php, when using debian:

apt-get install php5-gd

For all who use php 7 and ubuntu

sudo apt-get install php7.0-gd

People having difficulties setting the --with-libdir option needs to set it like this :

--with-libdir=lib64

That option works fine. Doing --with-libdir=/usr/lib64 doesn't work because the configure script prepends the --prefix option before the --with-libdir option. So, doing --with-libdir=/usr/lib64 makes the configure script to look for libs in /usr/usr/lib64, which is wrong of course, and not in /usr/lib64.

sudo apt-get install php5-gd && sudo service apache2 restart

To install under Ubuntu 14.04.

php --version if result is 7.2 version

sudo apt-get install php7.2-gd

To get GD bundled under Ubuntu, the way to recompile php5 with gd is described here (french) http://doc.ubuntu-fr.org/modules_php#php5-gd

I also had to install the libgd package in addition to php5-gd:

sudo apt-get install libgd2-xpm-dev*

To install PHP GD extension on an Amazon Linux AMI server, with php 7:

sudo yum install php 70-gd

Do remember to restart Apache after the installation!

sudo service httpd restart

On Ubuntu I was missing the libpng-dev, libjpeg-dev (and in my case) libwebp-dev libraries, all gettable with apt-get.

Also once those libraries are installed, including --with-png-dir --with-jpeg-dir --with-webp-dir, without any values (i.e. =/dir) appeared to be valid ... though admittedly I didn't try without (in case the configure script autodetected them).

If you are using PHPBREW , the extension is called gd.
So you do.
```
phpbrew ext install gd
```

It will compile the extension to the core.

currently is php7.2-gd

sudo apt install php7.2-gd

Installation on Pop-os No need for php5 or php7.0 etc:

sudo apt install php-gd

Note if you have php-fpm installed, you have to restart the service for the installation to show up in phpinfo output...

systemctl restart php-fpm (or equivalent)

On AntergosOS ( Arch linux ) 

*first run >>php -v   and get current php version. In my case for PHP 7.1.14

      sudo pacman -S php71-gd   

then restart you apache server using,
     
      sudo systemctl restart httpd

I was running PHP on a SUSE box on amazon EC2.
to get gd to work all I had to do was to run:
> yast -i php5_gd

and when that completed I just restarted apache. voila!

If you have already compiled PHP and want to recompile '--with-gd', don't forget to run 'make clean' first!