Please read carefully before running SUSPECT2:
******* How to compile and run SuSpect version > 2.3: ******

-once you uncompress suspect2**.gz you should have on your directory:
suspect2_lha.in  (input file example in SLHA (les Houches) format)
suspect2_call.f  (example of call with some useful comments/explanations)
suspect2**.f   (the main subroutine, ** are numbers designating latest version)
twoloophiggs.f (subroutine for dominant 2-loop Higgs mass R.C. in DRbar)
bsg.f (subroutine for calculation of Br(b-> s gamma))
suspect2.in  (input file example in original SuSpect format)

1. Compiling with f77 (i.e. with Fortran on a Sun machine or the like):
f77 -o suspect2 suspect2_call.f suspect2.f twoloophiggs.f bsg.f

1(bis). Compiling with gfortran (GNU fortran for pc):
gfortran -c suspect2_call.f suspect2.f twoloophiggs.f bsg.f
gfortran -o suspect2 suspect2_call.o suspect2.o twoloophiggs.o bsg.o

2. You can fix your input choice in the (SLHA format) file suspect2_lha.in
(which contain a minimal amount on the meaning of input parameters)
BUT this choice of input file is fixed by a parameter value: INPUT=..
as explained in suspect2_call.f
 
3. The executable code "suspect2" will generate for each input choice
an output file suspect2_lha.out for SLHA output format.
Note also that some convenient warning/error comments  
are written in output and returned as well by the subroutine suspect2. 
NB you can also easily call suspect2 in loops (e.g. to scan input physical
parameters etc): see explanations and example in suspect2_call.f for more
details.