Checking if your kit is complete... Warning: the following files are missing in your kit: .#LetterTree.xs.1.7 .#typemap.1.3 LetterTree.bs LetterTree.c LetterTree.o Please inform the author. Note (probably harmless): No library found for -llettertree Writing Makefile for Data::LetterTree cp lib/Data/LetterTree.pm blib/lib/Data/LetterTree.pm /home/cpanrun/parisc2.0-lp64/build/5.8.2/bin/perl /home/cpanrun/parisc2.0-lp64/build/5.8.2/lib/5.8.2/ExtUtils/xsubpp -typemap /home/cpanrun/parisc2.0-lp64/build/5.8.2/lib/5.8.2/ExtUtils/typemap -typemap typemap LetterTree.xs > LetterTree.xsc && mv LetterTree.xsc LetterTree.c Please specify prototyping behavior for LetterTree.xs (see perlxs manual) cc -c -D_POSIX_C_SOURCE=199506L -D_REENTRANT -Ae -D_HPUX_SOURCE -Wl,+vnocompatwarnings +DD64 -DNO_HASH_SEED -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -fast +Onolimit +Opromote_indirect_calls -DVERSION=\"0.1\" -DXS_VERSION=\"0.1\" +Z "-I/home/cpanrun/parisc2.0-lp64/build/5.8.2/lib/5.8.2/PA-RISC2.0-thread-multi-LP64/CORE" LetterTree.c cpp: "LetterTree.xs", line 7: error 4036: Can't open include file 'lettertree.h'. make: *** [LetterTree.o] Error 1