= Ubuntu 9.1 Compilation Guide =

'''Note:  The compilation steps for Ubuntu 9.1 are incomplete.  More work is required.'''

== Build Machine Setup ==


Ubuntu 9.1 uses GCC 4.4 as its native compiler.  !MapGuide 2.2 does not compile cleanly against GCC 4.4.  Further work will be required to support native GCC 4.4 compilation.

Compilation is more successful if Ubuntu 9.1 is set up to use GCC 4.1.

Grab [http://golubenco.org/2007/06/14/atomic-operations Tudor Golubenco's atomic.h] replacement header and drop it in /usr/include/asm.  Then install the following packages (list may not be complete):
{{{
apt-get install gcc-4.1 g++-4.1 autoconf automake automake1.7 libtool bison
apt-get install zliblg zlib1g-dev zlibc libjpeg62-dev libxml2-dev
}}}
Export CC, CPP, and CXX to use GCC 4.1:
{{{
export CC=gcc-4.1
export CPP='gcc-4.1 -E'
export CXX=g++-4.1
}}}

However, there is at least one Oem build script which hardcodes CC, CPP, and CXX.  The build will fail here so additional script cleanup will be required.