Checking if your kit is complete... Looks good Writing Makefile for Mac::CoreMIDI cp lib/Mac/CoreMIDI/Device.pm blib/lib/Mac/CoreMIDI/Device.pm cp lib/Mac/CoreMIDI/Port.pm blib/lib/Mac/CoreMIDI/Port.pm cp lib/Mac/CoreMIDI/Client.pm blib/lib/Mac/CoreMIDI/Client.pm cp lib/Mac/CoreMIDI/Entity.pm blib/lib/Mac/CoreMIDI/Entity.pm cp lib/Mac/CoreMIDI/Endpoint.pm blib/lib/Mac/CoreMIDI/Endpoint.pm cp lib/Mac/CoreMIDI.pm blib/lib/Mac/CoreMIDI.pm cp lib/Mac/CoreMIDI/Object.pm blib/lib/Mac/CoreMIDI/Object.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 CoreMIDI.xs > CoreMIDI.xsc && mv CoreMIDI.xsc CoreMIDI.c Please specify prototyping behavior for CoreMIDI.xs (see perlxs manual) 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=\"0.04\" -DXS_VERSION=\"0.04\" +Z "-I/home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/PA-RISC1.1-thread-multi/CORE" CoreMIDI.c cpp: "helpers.h", line 15: error 4036: Can't open include file 'CoreMIDI/CoreMIDI.h'. cpp: "helpers.h", line 16: error 4036: Can't open include file 'CoreFoundation/CFRunLoop.h'. make: *** [CoreMIDI.o] Error 1