Checking if your kit is complete... Looks good Writing Makefile for Device::ParallelPort::drv::parport cp parport.pm blib/lib/Device/ParallelPort/drv/parport.pm /home/cpanrun/build/5.10.0/bin/perl /home/cpanrun/build/5.10.0/lib/ExtUtils/xsubpp -typemap /home/cpanrun/build/5.10.0/lib/ExtUtils/typemap parport.xs > parport.xsc && mv parport.xsc parport.c Please specify prototyping behavior for parport.xs (see perlxs manual) cc -c -D_REENTRANT -DPRIVLIB_LAST_IN_INC -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O -DVERSION=\"1.0\" -DXS_VERSION=\"1.0\" -KPIC "-I/home/cpanrun/build/5.10.0/lib/CORE" parport.c "parport.xs", line 11: cannot find include file: "parport.xs", line 13: cannot find include file: "parport.xs", line 29: undefined symbol: PPCLAIM "parport.xs", line 51: undefined symbol: PPRDATA "parport.xs", line 63: undefined symbol: PPWDATA "parport.xs", line 70: undefined symbol: PPRCONTROL "parport.xs", line 82: undefined symbol: PPWCONTROL "parport.xs", line 89: undefined symbol: PPRSTATUS cc: acomp failed for parport.c *** Error code 2 make: Fatal error: Command failed for target `parport.o'