Note (probably harmless): No library found for -lneural Checking if your kit is complete... Looks good Writing Makefile for AI::LibNeural cp LibNeural.pm blib/lib/AI/LibNeural.pm AutoSplitting blib/lib/AI/LibNeural.pm (blib/lib/auto/AI/LibNeural) /export/home/cpanrun/build/5.6.1/bin/perl -I/export/home/cpanrun/build/5.6.1/lib/5.6.1/sun4-solaris-thread-multi -I/export/home/cpanrun/build/5.6.1/lib/5.6.1 /export/home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp -C++ -typemap /export/home/cpanrun/build/5.6.1/lib/5.6.1/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) g++ -c -DUSE_REENTRANT_API -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O -DVERSION=\"0.02\" -DXS_VERSION=\"0.02\" -fPIC -I/export/home/cpanrun/build/5.6.1/lib/5.6.1/sun4-solaris-thread-multi/CORE LibNeural.c LibNeural.xs:37: nnwork.h: No such file or directory LibNeural.xs:38: neuron.h: No such file or directory make: *** [LibNeural.o] Error 1