Note (probably harmless): No library found for -lneural Writing Makefile for AI::LibNeural Skip blib/lib/AI/LibNeural.pm (unchanged) /home/cpanrun/ia64-lp64/build/5.8.2/bin/perl /home/cpanrun/ia64-lp64/build/5.8.2/lib/5.8.2/ExtUtils/xsubpp -C++ -typemap /home/cpanrun/ia64-lp64/build/5.8.2/lib/5.8.2/ExtUtils/typemap -typemap ./typemap -typemap typemap LibNeural.xs > LibNeural.xsc && mv LibNeural.xsc LibNeural.c Please specify prototyping behavior for LibNeural.xs (see perlxs manual) mv: LibNeural.xsc: cannot access: No such file or directory make: *** [LibNeural.c] Error 1