Checking if your kit is complete...
Looks good
Writing Makefile for ExtUtils::F77
cp ._F77.pm blib/lib/ExtUtils/._F77.pm
cp F77.pm blib/lib/ExtUtils/F77.pm
Manifying blib/man3/ExtUtils::F77.3
PERL_DL_NONLAZY=1 /home/cpanrun/ia64-lp64/build/5.6.1/bin/perl -Iblib/arch -Iblib/lib -I/home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/IA64.ARCHREV_0-thread-multi-64all -I/home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1 -e 'use Test::Harness qw(&runtests $verbose); $verbose=1; runtests @ARGV;' t/*.t
t/require...........1..2

ExtUtils::F77: Version 1.16
Loaded ExtUtils::F77 version 1.16
ExtUtils::F77: Using system=Hpux compiler=F77
Runtime: -L/usr/lib -lcl -lm -L/usr/local/lib/gcc/ia64-hp-hpux11.22/3.4.3 -lgcc
ExtUtils::F77: Validating -L/usr/lib -lcl -lm -L/usr/local/lib/gcc/ia64-hp-hpux11.22/3.4.3 -lgcc   [ok]
ExtUtils::F77: Compiler: f77
ExtUtils::F77: Cflags: -O
ok 1
Can't exec "f77": No such file or directory at t/require.t line 28.
2  WARNING: f77  -O -c hello.f  returned non-zero exit status 255
FAILED test 2
	Failed 1/2 tests, 50.00% okay
Failed Test Status Wstat Total Fail  Failed  List of Failed
-----------------------------------------------------------------------------------------------------------------------------------
t/require.t	               2    1  50.00%  2
Failed 1/1 test scripts, 0.00% okay. 1/2 subtests failed, 50.00% okay.
make: *** [test_dynamic] Error 25