possible of include of incorrect config.h file

[Patrice Dumas]

Hello,

The C files in XSParagraph still compile when there is no config.h,
because they use the config.h in some perl include directory.  I think
that it is a potential source of confusion.  I would propose using a
specific name instead of config.h, for example xsparagraph_acconfig.h.

If it is ok, I can do a patch.

-- 
Pat