either H files or library files or both are not seen by the build process.

You probable have been warned about this during your 

  perl Makefile.PL

[download]
process but this probably have been unnoticed by you.

Can you show output of this command - 

  perl Makefile.PL

[download]
?

In reply to Re^3: installing JavaScript.pm using Cygwin by vkon
in thread installing JavaScript.pm using Cygwin by Anonymous Monk

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