How to install GraphicsMagick on CentOS 6.7

GraphicsMagick.sh

#!/bin/bash

# Install build dependencies
yum install -y gcc libjpeg libpng-devel libjpeg-devel ghostscript libtiff libtiff-devel freetype freetype-devel

# Get GraphicsMagick source
wget http://skylink.dl.sourceforge.net/project/graphicsmagick/graphicsmagick/1.3.23/GraphicsMagick-1.3.23.tar.gz
tar zxvf GraphicsMagick-1.3.23.tar.gz

# Configure and compile
cd GraphicsMagick-1.3.23
./configure --enable-shared
make
make install

# Will be installed under /usr/local/bin, thus we must add it to the global PATH
echo 'pathmunge /usr/local/bin' > /etc/profile.d/usr_local_bin.sh
chmod +x /etc/profile.d/usr_local_bin.sh 

# Ensure everything was installed correctly
bash
gm version