Checking if your kit is complete...
Looks good
Writing Makefile for Db::Ctree
cp Cterrc.ph blib/lib/Cterrc.ph
cp Ctree.pm blib/lib/Db/Ctree.pm
cp Ctport.ph blib/lib/Ctport.ph
/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  Ctree.xs > Ctree.xsc && mv Ctree.xsc Ctree.c
Please specify prototyping behavior for Ctree.xs (see perlxs manual)
cc -c  -I/usr/faircom/ctree/include -I/usr/faircom/ctree/custom  -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=\"1.1\" -DXS_VERSION=\"1.1\" +Z "-I/home/cpanrun/parisc2.0-lp64/build/5.8.2/lib/5.8.2/PA-RISC2.0-thread-multi-LP64/CORE"   Ctree.c
cpp: "Ctree.xs", line 9: error 4036: Can't open include file 'ctstdr.h'.
cpp: "Ctree.xs", line 10: error 4036: Can't open include file 'ctoptn.h'.
cpp: "Ctree.xs", line 11: error 4036: Can't open include file 'ctaerr.h'.
cpp: "Ctree.xs", line 12: error 4036: Can't open include file 'ctdecl.h'.
cpp: "Ctree.xs", line 13: error 4036: Can't open include file 'cterrc.h'.
make: *** [Ctree.o] Error 1