	REQUIREMENTS:
	-------------

The libghemical package is optionally dependent on "mopac7" and "mpqc"
packages, in addition to the packages/files that are needed to compile
and run UNIX console programs and/or libraries.

You can get "mopac7-1.10.tgz" or newer from

	http://sourceforge.net/projects/mopac7/

You can get "mpqc-1.2.5.tgz" or newer from

	http://www.mpqc.org/download.php

This is the recommended way how to compile/install MPQC if you wish
to use it with ghemical:

	tar zxvf mpqc-2.3.1.tar.gz
	mkdir mpqctarget
	cd /home/youracct/mpqctarget
	/home/youracct/mpqc-2.3.1/configure --disable-parallel
	make
	make install		[run as root user]
	make install_devel	[run as root user]

Other software/packages that are needed to compile and run this library
are:

	g++			gcc version 2.95.4 or later
	make			GNU Make version 3.76.1
	pkg-config		pkg-config-0.15

In short, any up-to-date Linux installation like Redhat 9.0, Mandrake 9.0
or Debian 3.0 should work, if the necessary development packages (that
contain the header files) are also present, in addition to the standard
packages (that contain the libraries).


	INSTALLATION:
	-------------

Simple set of commands

	./autogen.sh
	./configure
	make
	make install		[run as root user]

will produce a library version in which all the optional dependencies
mentioned above are disabled. You can enable the options by adding the
following statements to the configuration script command line:

	./configure --enable-mopac7 --enable-mpqc

For more options and information you can try

	./configure --help

If at configuration step you get stuck and see some error messages about
PKG_CONFIG, please try the following tricks (and re-try ./configure):

	export PKG_CONFIG=pkg-config
	export PKG_CONFIG_PATH=/usr/local/lib/pkgconfig

If you are compiling with MPQC support and get stuck with messages about
SC_CONFIG, please try this (with correct path set, and re-try ./configure):

	export SC_CONFIG=/usr/local/mpqc/2.3.1/bin/sc-config

Also if problems appear you might want to try updating the configuration
files using commands at the top of the source tree (and re-try ./configure):

	aclocal
	autoconf
	autoheader
	automake
	libtoolize --copy --force

This is an example how to set different compiler versions in Makefiles:

	CC=gcc-3.4 CXX=g++-3.4 ./configure

The "make install"-command will copy the library and some extra files to
their proper places so that the library can be used in other programs.

