21 February 2000 - CLO

As of version 0.7.2, FlightGear now requires the SimGear supporting
libraries to be installed before configuring and building FlightGear.
You must also have SimGear installed if you build the TerraGear
scenery creating tools (TerraGear is not required to run the
simulator).

You can get a copy of SimGear from the same place you get FlightGear:

    ftp://ftp.flightgear.org/pub/fgfs/Source/

SimGear build notes:

You should be able to just run the standard "./configure; make; make
install" to configure, build, and install SimGear.  By default,
SimGear is installed in /usr/local/lib/libsg*.a and
/usr/local/include/simgear/.

You may specify an alternate prefix, but then you may then also have
to do addition things to add your non-standard include and lib paths
to your compilers search path when you build FlightGear.