WARNING: This module is architecture-dependent and will not likely work
         on lesser-used architectures (see Changes). If the module (esp.
         aio_read and aio_write) doesn't work, please report this and I'll
         fix it for you. I promise ;)

Checking if your kit is complete...
Looks good
Writing Makefile for Linux::AIO
cp AIO.pm blib/lib/Linux/AIO.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 AIO.xs > AIO.xsc && mv AIO.xsc AIO.c
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=\"1.9\" -DXS_VERSION=\"1.9\" +z -I/home/cpanrun/pa-risc1.1/build/5.6.1/lib/5.6.1/PA-RISC1.1-thread-multi/CORE  AIO.c
cpp: "AIO.xs", line 13: error 4036: Can't open include file 'endian.h'.
cpp: "AIO.xs", line 246: error 4036: Can't open include file 'linux/unistd.h'.
cpp: "AIO.xs", line 247: error 4036: Can't open include file 'linux/types.h'.
cpp: "AIO.xs", line 248: error 4036: Can't open include file 'sys/prctl.h'.
cpp: "AIO.xs", line 253: error 4036: Can't open include file 'asm/stat.h'.
cpp: "AIO.xs", line 323: error 4062: "neither stat64 nor stat defined"
make: *** [AIO.o] Error 1