Checking if your kit is complete... Looks good Writing Makefile for IO::SendFile cp SendFile.pm blib/lib/IO/SendFile.pm AutoSplitting blib/lib/IO/SendFile.pm (blib/lib/auto/IO/SendFile) /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 -typemap typemap SendFile.xs > SendFile.xsc && mv SendFile.xsc SendFile.c Please specify prototyping behavior for SendFile.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" SendFile.c Warning 942: "SendFile.c", line 42 # Types 'long long' and 'long long *' are not assignment-compatible. RETVAL = sendfile(out_fd, in_fd, offset, count); ^^^^^^ Error 181: "SendFile.c", line 42 # Expected 6 argument(s) for "long long sendfile(int,int,long long,unsigned long long,const iovec *,int)"; had 4 instead. RETVAL = sendfile(out_fd, in_fd, offset, count); ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ make: *** [SendFile.o] Error 2