Checking if your kit is complete...
Looks good
cpp: "", line 2: error 4036: Can't open include file 'tdb.h'.
Checking for TDB_ERR_LOCK_TIMEOUT .. no
Checking for hash_func argument to tdb_open_ex() .. no
Note (probably harmless): No library found for -ltdb
Writing Makefile for TDB_File
cp TDB_File.pm blib/lib/TDB_File.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 -prototypes -typemap /home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/ExtUtils/typemap -typemap typemap  TDB_File.xs > TDB_File.xsc && mv TDB_File.xsc TDB_File.c
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 +Onolimit +Opromote_indirect_calls +DAportable +DS2.0   -DVERSION=\"0.96\" -DXS_VERSION=\"0.96\" +Z "-I/home/cpanrun/pa-risc1.1/build/5.8.2/lib/5.8.2/PA-RISC1.1-thread-multi/CORE"   TDB_File.c
cpp: "TDB_File.xs", line 6: error 4036: Can't open include file 'tdb.h'.
cpp: "TDB_File.xs", line 14: error 4010: The '#' operator must precede a parameter.
make: *** [TDB_File.o] Error 1