Checking if your kit is complete...
Looks good
Writing Makefile for Win32::Symlink
cp Symlink.pm blib/lib/Win32/Symlink.pm
/home/cpanrun/pa-risc1.1/build/5.6.1/bin/perl -I/home/cpanrun/pa-risc1.1/build/5.6.1/lib/5.6.1/PA-RISC1.1-thread-multi -I/home/cpanrun/pa-risc1.1/build/5.6.1/lib/5.6.1 /home/cpanrun/pa-risc1.1/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp  -typemap /home/cpanrun/pa-risc1.1/build/5.6.1/lib/5.6.1/ExtUtils/typemap -typemap typemap Symlink.xs > Symlink.xsc && mv Symlink.xsc Symlink.c
Please specify prototyping behavior for Symlink.xs (see perlxs manual)
cc -c  -D_POSIX_C_SOURCE=199506L -D_HPUX_SOURCE +DA1.1 +DS2.0a +z -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -Ae -O +Onolimit   -DVERSION=\"0.03\" -DXS_VERSION=\"0.03\" +z -I/home/cpanrun/pa-risc1.1/build/5.6.1/lib/5.6.1/PA-RISC1.1-thread-multi/CORE  Symlink.c
cpp: "pgsymlink.c", line 5: error 4036: Can't open include file 'windows.h'.
cpp: "pgsymlink.c", line 6: error 4036: Can't open include file 'winioctl.h'.
make: *** [Symlink.o] Error 1