Checking if your kit is complete... Looks good Writing Makefile for Debug::FaultAutoBT cp FaultAutoBT.pm blib/lib/Debug/FaultAutoBT.pm cp DumpCore.pm blib/lib/Debug/DumpCore.pm /home/cpanrun/ia64/build/5.8.2/bin/perl /home/cpanrun/ia64/build/5.8.2/lib/5.8.2/ExtUtils/xsubpp -typemap /home/cpanrun/ia64/build/5.8.2/lib/5.8.2/ExtUtils/typemap DumpCore.xs > DumpCore.xsc && mv DumpCore.xsc DumpCore.c Please specify prototyping behavior for DumpCore.xs (see perlxs manual) cc -c -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 +DSitanium2 +Ofltacc=strict -DVERSION=\"0.02\" -DXS_VERSION=\"0.02\" +Z "-I/home/cpanrun/ia64/build/5.8.2/lib/5.8.2/IA64.ARCHREV_0-thread-multi/CORE" -Wall -O0 -g DumpCore.c cc: error 1914: bad form for `-W' option make: *** [DumpCore.o] Error 1