When the Xcaml runtime system is linked with the -linkall option of 
ocamlc-3.06, the xcaml executable I get crashes with a segmentation 
fault at process initialization. If, on the other hand, I link the 
executable without the -linkall option, it runs fine, except for the 
fact that it lacks several library modules it should have.

The libraries I'm using are the following:
postgres, which is know to work very well;
cgi, which contains no C code;
and str, num and dynlink coming straight from the ocaml distribution.

My code is definitely not a problem because it runs fine if the -linkall 
option is suppressed. Neither is the -linkall option a problem in and of 
itself, because I can reproduce the behaviour by issuing equivalent 
linking commands using the cmo files as opposed the cmas.

How can I diagnose this segmentation fault? Under what circumstances 
exactly are ocaml programs "allowed" to crash with a segmentation fault?

Alex

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