Installing V_Sim on Unix like platforms:
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I suppose that you have downloaded v_sim-3.0.tar.gz in some working-directory
and then ungzipped and untarred it:
> gzip -d -c v_sim-3.0.tar.gz | tar xvf -
or, if your tar command supports it:
> tar -zxvf v_sim-3.0.tar.gz

Now, I suppose you are reading this INSTALL file in:
> working-directory/v_sim-3.0_package

Please cd working-directory/v_sim-3.0_package then type:
> ./configure
> make
> make install
> make clean

In the above ./configure has many options available. Type ./configure --help for
a short explanation. It understands all the GNU basic arguments plus some
specific ones for V_Sim :
- use --prefix=install_directory to specify your installation directory (/usr/local is
  default).
- use --enable-debug-messages to compile V_Sim with debug message (default is
  disable).
- use --enable-gtk-doc to build the documentation of the API (default is disable).
  There are some other less important option to customize V_Sim more precisely.

From version 3.3, plug-ins can be compiled with V_Sim. Two are shipped with the V_Sim
package:
- use --with-nanoquanta to build the support of ETSF files. It requires the NetCDF
  library (runtime and devel files).
- use --with-openbabel to add support of all file format available with OpenBabel
  library. It requires this last library (runtime and devel files).

When 'make install' is done, it will copy all the following files :
- to $(prefix)/bin, it will copy the binary v_sim.
- to $(prefix)/etc/v_sim, it will copy v_sim.par.
- to $(prefix)/share/v_sim, it will copy v_sim.res, v_sim.rc and the directory
  pixmaps.
- to $(prefix)/share/doc/v_sim, it will copy some legal informations and the directory
  APIreference (if --enable-gtk-doc has been given).
- to $(prefix)/lib/v_sim/plug-ins, it will copy the compiled plug-ins.
