====== Compiling MESS ======

Compiling MESS is essentially the same process as building MAME, but instead of just ''mingw32-make'' you type ''mingw32-make TARGET=mess''. Read on for step-by-step instructions.

===== Setting up the build tools =====

Download the [[build tools]] (or from [[http://mamedev.org/tools/|MAMEDev.org]]) and follow the instructions to install them. To verify your install, open a command line window and try the following:

<code>
C:\>gcc --version
gcc (GCC) 4.2.1-sjlj (mingw32 sjlj-unwind)
Copyright (C) 2007 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
</code>

The output should be the same or similar. If there is an error message like this:

<code>
C:\>gcc --version
'gcc' is not recognized as an internal or external command,
operable program or batch file.
</code>

Then your path environment variable is not setup correctly. To fix this temporarily, use the following command:

<code>
C:\>path C:\mingw\bin;%path%
</code>

If you installed the tools into a different directory, change the location appropriately.


===== Building MESS =====

You are now ready to compile MESS. To do so, change to the directory where you installed the MESS (and MAME) sources using the ''cd'' command and drive letters. For example:

<code>
C:\>D:

D:\>cd mess

D:\mess>
</code>

To start the build process, type ''mingw32-make TARGET=mess'':

<code>
D:\mess>mingw32-make TARGET=mess
mkdir.exe -p obj/windows/mess
mkdir.exe -p obj/windows/mess/build
mkdir.exe -p obj/windows/mess/emu/audio
mkdir.exe -p obj/windows/mess/emu/cpu
mkdir.exe -p obj/windows/mess/emu/cpu/apexc
...
</code>

When it's finished, you will have some new executables, among them ''mess.exe'' and ''messui.exe''.

You will need to create MESS's config files before running, to do that, type ''mess -cc'':

<code>
D:\mess>mess -cc
</code>

You have now fully compiled MESS, have fun! :)

To compile a DEBUG version add ''DEBUG=1 SYMBOLS=1''

<code>
D:\mess>mingw32-make TARGET=mess DEBUG=1 SYMBOLS=1
</code>