This version of POSIX::RT::MQ has not beed tested on 'hpux' platform.
If you are lucky enough to get it working please drop me a note.
If not (and you know POSIX message queues are supported on this platform)
please inform me anyway - maybe we'll be able to do a port.

Checking if your kit is complete...
Looks good
Writing Makefile for POSIX::RT::MQ
cp MQ.pm blib/lib/POSIX/RT/MQ.pm
/home/cpanrun/ia64/build/5.8.2/bin/perl /home/cpanrun/ia64/build/5.8.2/lib/5.8.2/ExtUtils/xsubpp  -typemap /home/cpanrun/ia64/build/5.8.2/lib/5.8.2/ExtUtils/typemap -typemap typemap  MQ.xs > MQ.xsc && mv MQ.xsc MQ.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 +DSitanium2 +Ofltacc=strict   -DVERSION=\"0.03\" -DXS_VERSION=\"0.03\" +Z "-I/home/cpanrun/ia64/build/5.8.2/lib/5.8.2/IA64.ARCHREV_0-thread-multi/CORE"   MQ.c
Running Mkbootstrap for POSIX::RT::MQ ()
chmod 644 MQ.bs
rm -f blib/arch/auto/POSIX/RT/MQ/MQ.so
LD_RUN_PATH="/usr/lib/hpux32" /usr/bin/ld  -b +vnocompatwarnings -L/usr/lib/hpux32 MQ.o  -o blib/arch/auto/POSIX/RT/MQ/MQ.so   -lrt   
chmod 755 blib/arch/auto/POSIX/RT/MQ/MQ.so
cp MQ.bs blib/arch/auto/POSIX/RT/MQ/MQ.bs
chmod 644 blib/arch/auto/POSIX/RT/MQ/MQ.bs
Manifying blib/man3/POSIX::RT::MQ.3
PERL_DL_NONLAZY=1 /home/cpanrun/ia64/build/5.8.2/bin/perl "-MExtUtils::Command::MM" "-e" "test_harness(1, 'blib/lib', 'blib/arch')" t/*.t
t/constants....1..2
# Running under perl version 5.008002 for hpux
# Current time local: Sun Jul  1 03:26:52 2007
# Current time GMT:   Sun Jul  1 10:26:52 2007
# Using Test.pm version 1.24
ok 1
ok 2
ok
t/creation.....1..5
# Running under perl version 5.008002 for hpux
# Current time local: Sun Jul  1 03:26:52 2007
# Current time GMT:   Sun Jul  1 10:26:52 2007
# Using Test.pm version 1.24
ok 1
ok 2
ok 3
ok 4
ok 5
ok
t/transfer.....1..3
# Running under perl version 5.008002 for hpux
# Current time local: Sun Jul  1 03:26:52 2007
# Current time GMT:   Sun Jul  1 10:26:52 2007
# Using Test.pm version 1.24
ok 1
ok 2
ok 3
ok
t/trnotify.....1..1
# Running under perl version 5.008002 for hpux
# Current time local: Sun Jul  1 03:27:02 2007
# Current time GMT:   Sun Jul  1 10:27:02 2007
# Using Test.pm version 1.24
ok 1
ok
All tests successful.
Files=4, Tests=11, 11 wallclock secs ( 0.84 cusr +  0.12 csys =  0.96 CPU)
Installing /home/cpanrun/ia64/build/5.8.2/lib/site_perl/5.8.2/IA64.ARCHREV_0-thread-multi/auto/POSIX/RT/MQ/MQ.so
Installing /home/cpanrun/ia64/build/5.8.2/lib/site_perl/5.8.2/IA64.ARCHREV_0-thread-multi/auto/POSIX/RT/MQ/MQ.bs
Files found in blib/arch: installing files in blib/lib into architecture dependent library tree
Installing /home/cpanrun/ia64/build/5.8.2/lib/site_perl/5.8.2/IA64.ARCHREV_0-thread-multi/POSIX/RT/MQ.pm
Installing /home/cpanrun/ia64/build/5.8.2/man/man3/POSIX::RT::MQ.3
Appending installation info to /home/cpanrun/ia64/build/5.8.2/lib/5.8.2/IA64.ARCHREV_0-thread-multi/perllocal.pod