Checking if your kit is complete... Looks good Note (probably harmless): No library found for -ldoublefann Writing Makefile for AI::FANN cp lib/AI/FANN.pm blib/lib/AI/FANN.pm /home/cpanrun/pa-risc1.1/build/5.8.2/bin/perl /home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/ExtUtils/xsubpp -typemap /home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/ExtUtils/typemap -typemap typemap FANN.xs > FANN.xsc && mv FANN.xsc FANN.c cc -c -I. -D_POSIX_C_SOURCE=199506L -D_REENTRANT -Ae -D_HPUX_SOURCE -Wl,+vnocompatwarnings -DNO_HASH_SEED -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -fast +Onolimit +Opromote_indirect_calls +DAportable +DS2.0 -DVERSION=\"0.07\" -DXS_VERSION=\"0.07\" +Z "-I/home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/PA-RISC1.1-thread-multi/CORE" FANN.c cpp: "FANN.xs", line 11: error 4036: Can't open include file 'doublefann.h'. cpp: "morefann.h", line 2: error 4036: Can't open include file 'doublefann.h'. make: *** [FANN.o] Error 1