Checking if your kit is complete... Looks good Writing Makefile for Device::WS2000::IO cp IO.pm blib/lib/Device/WS2000/IO.pm AutoSplitting blib/lib/Device/WS2000/IO.pm (blib/lib/auto/Device/WS2000/IO) /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 IO.xs > IO.xsc && mv IO.xsc IO.c Please specify prototyping behavior for IO.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=\"0.01\" -DXS_VERSION=\"0.01\" +Z "-I/home/cpanrun/ia64/build/5.8.2/lib/5.8.2/IA64.ARCHREV_0-thread-multi/CORE" IO.c Warning 129: "IO.xs", line 16 # Redefinition of macro 'FALSE' differs from previous definition at ["/home/cpanrun/ia64/build/5.8.2/lib/5.8.2/IA64.ARCHREV_0-thread-multi/CORE/handy.h", line 47]. #define FALSE 0 ^^^^^ Warning 129: "IO.xs", line 17 # Redefinition of macro 'TRUE' differs from previous definition at ["/home/cpanrun/ia64/build/5.8.2/lib/5.8.2/IA64.ARCHREV_0-thread-multi/CORE/handy.h", line 46]. #define TRUE 1 ^^^^ Error 172: "IO.xs", line 111 # Undeclared variable 'FASYNC'. fcntl(fd, 4 , FASYNC); ^^^^^^ Error 172: "IO.xs", line 151 # Undeclared variable 'MDTR'. temp |= MDTR ; ^^^^ Error 172: "IO.xs", line 161 # Undeclared variable 'MDTR'. temp &= ~ MDTR ; ^^^^ make: *** [IO.o] Error 2