Checking if your kit is complete...
Looks good
Note (probably harmless): No library found for -lisam
Writing Makefile for CIsam
cp IsamObjects.pm blib/lib/IsamObjects.pm
cp CIsam.pm blib/lib/CIsam.pm
AutoSplitting blib/lib/CIsam.pm (blib/lib/auto/CIsam)
cp eg/Person.pm blib/lib/eg/Person.pm
/home/cpanrun/pa-risc1.1/build/5.8.2/bin/perl /home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/ExtUtils/xsubpp  -typemap /home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/ExtUtils/typemap  CIsam.xs > CIsam.xsc && mv CIsam.xsc CIsam.c
Please specify prototyping behavior for CIsam.xs (see perlxs manual)
cc -c  -I/home/wsi/r56work/src/include -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 +Onolimit +Opromote_indirect_calls +DAportable +DS2.0   -DVERSION=\"1.0\" -DXS_VERSION=\"1.0\" +Z "-I/home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/PA-RISC1.1-thread-multi/CORE"  -DCISAM4 CIsam.c
cpp: "CIsam.xs", line 1: error 4036: Can't open include file 'isam.h'.
make: *** [CIsam.o] Error 1