Notes on compiling MPlayer on Ubuntu 20 Linux
----------------------------------------------

Download sources:

http://www.mplayerhq.hu/MPlayer/releases/MPlayer-1.4.tar.xz

Unzip and rename master directory as mplayer. Download codecs:

http://www.mplayerhq.hu/MPlayer/releases/codecs/essential-20071007.tar.bz2

Unzip and put in codecs directory parallel to mplayer directory.

Install the following packages:

sudo apt install gcc
sudo apt install yasm
sudo apt install zlib1g-dev 
sudo apt install libx11-dev
sudo apt install libxext-dev
sudo apt install libgtk2.0-dev

Now run configure and make:

./configure --codecsdir="../codecs" --enable-gui
make


Notes on compiling MPlayer on Fedora 34 Linux
---------------------------------------------

Download sources:

http://www.mplayerhq.hu/MPlayer/releases/MPlayer-1.4.tar.xz

Unzip and rename master directory as mplayer. Download codecs:

http://www.mplayerhq.hu/MPlayer/releases/codecs/essential-20071007.tar.bz2

Unzip and put in codecs directory parallel to mplayer directory. Install
zlib-devel and gtk2-devel:

sudo dnf install zlib-devel 
sudo dnf install gtk2-devel

Now run configure and make in mplayer directory with codecs in ../codecs:

./configure --codecsdir="../codecs" --enable-gui
make



Notes on compiling MPlayer on Scientific Linux 32-bit and 64-bit (Fedora)
------------------------------------------------------------------------

Upgrading to GCC 4.8 on Linux:

wget -O /etc/yum.repos.d/slc6-devtoolset.repo http://linuxsoft.cern.ch/cern/devtoolset/slc6-devtoolset.repo
sudo yum install devtoolset-2
scl enable devtoolset-2 bash
gcc --version

The line:

scl enable devtoolset-2 bash 

Applies the new compiler to this bash shell, but the new compiler has not
replaced the existing /usr/bin/gcc. 

When compiling MPlayer on Linux with GCC 4.4.7 or 4.8 we must edit:

/ffmpeg/ffbuild/common.mak

adding the line 

CPPFLAGS += -Icompat/atomics/gcc

So the file looks like this:L

CPPFLAGS   := $(IFLAGS) $(CPPFLAGS)
CPPFLAGS += -Icompat/atomics/gcc

As described here:

https://trac.mplayerhq.hu/ticket/2312

Install zlib-devl and gtk2-devel:

sudo yum install zlib-devel
sudo yum install gtk2-devel

Configure in the mplayer directory, with codecs downloaded an unpacked in
../codecs, then make:

./configure --codecsdir="../codecs" --enable-gui
make

produces an mplayer static executable with graphical user interface.