BUILD.el7

# Compiling and installing latest zlib
$ cd /usr/local/src/
$ wget http://zlib.net/zlib-1.2.8.tar.gz
$ tar xzvf zlib-1.2.8.tar.gz
$ cd zlib-1.2.8/
$ ./configure --prefix /usr/local
$ make
$ make install

# Compiling and installing latest IJG jpeg lib
$ cd /usr/local/src/
$ wget http://www.ijg.org/files/jpegsrc.v9b.tar.gz
$ tar xzvf jpegsrc.v9b.tar.gz
$ cd jpeg-9b/
$ ./configure --prefix /usr/local
$ make
$ make install

# Adding shared libraries to LD_LIBRARY_PATH
$ echo "/usr/local/lib" >> /etc/ld.so.conf.d/usr-local.conf
$ ldconfig

# Compiling and installing VNCsnapshot
$ cd /usr/local/src/
$ git clone https://github.com/andys/VNCsnapshot.git
$ cd VNCsnapshot/
# No need to edit Makefile paths, because they are identical to above
$ make
$ cp vncsnapshot /usr/local/bin/
$ cp vncpasswd /usr/local/bin/