Checking if your kit is complete...
Looks good
Note (probably harmless): No library found for -lwbxml2
Writing Makefile for XML::WBXML
cp lib/XML/WBXML.pm blib/lib/XML/WBXML.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  WBXML.xs > WBXML.xsc && mv WBXML.xsc WBXML.c
cc -c  -I. -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=\"0.03\" -DXS_VERSION=\"0.03\" +Z "-I/home/cpanrun/parisc2.0-lp64/build/5.8.2/lib/5.8.2/PA-RISC2.0-thread-multi-LP64/CORE"   WBXML.c
cpp: "WBXML.xs", line 7: error 4036: Can't open include file 'wbxml.h'.
make: *** [WBXML.o] Error 1