Note (probably harmless): No library found for -lutil
Checking if your kit is complete...
Looks good
Writing Makefile for BSD::Jail
cp Jail.pm blib/lib/BSD/Jail.pm
/home/cpanrun/ia64-lp64/build/5.6.1/bin/perl -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 /home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp  -typemap /home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/ExtUtils/typemap Jail.xs > Jail.xsc && mv Jail.xsc Jail.c
Please specify prototyping behavior for Jail.xs (see perlxs manual)
gcc -c  -DUSE_REENTRANT_API -D_POSIX_C_SOURCE=199506L -D_HPUX_SOURCE -mlp64 -L/lib/hpux64 -DUINT32_MAX_BROKEN -fPIC -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O   -DVERSION=\"0.01\" -DXS_VERSION=\"0.01\" -fPIC -I/home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/IA64.ARCHREV_0-thread-multi-64all/CORE  Jail.c
Jail.xs:6:2: #error This only works on FreeBSD 4.0 or greater
Jail.xs:10:22: sys/jail.h: No such file or directory
Jail.xs: In function `_get_jids':
Jail.xs:25: error: invalid application of `sizeof' to incomplete type `xprison' 
Jail.xs:31: error: dereferencing pointer to incomplete type
Jail.xs:31: error: dereferencing pointer to incomplete type
Jail.xs:31: error: dereferencing pointer to incomplete type
Jail.xs:32: error: `XPRISON_VERSION' undeclared (first use in this function)
Jail.xs:32: error: (Each undeclared identifier is reported only once
Jail.xs:32: error: for each function it appears in.)
Jail.xs:37: error: dereferencing pointer to incomplete type
Jail.xs:38: error: dereferencing pointer to incomplete type
Jail.xs:39: error: increment of pointer to unknown structure
Jail.xs:39: error: arithmetic on pointer to an incomplete type
Jail.xs: In function `_get_xp':
Jail.xs:62: error: invalid application of `sizeof' to incomplete type `xprison' 
Jail.xs:66: error: invalid application of `sizeof' to incomplete type `xprison' 
Jail.xs:79: error: dereferencing pointer to incomplete type
Jail.xs:79: error: dereferencing pointer to incomplete type
Jail.xs:79: error: dereferencing pointer to incomplete type
Jail.xs:79: error: `XPRISON_VERSION' undeclared (first use in this function)
Jail.xs:85: error: dereferencing pointer to incomplete type
Jail.xs:86: error: dereferencing pointer to incomplete type
Jail.xs:87: error: invalid application of `sizeof' to incomplete type `xprison' 
Jail.xs:91: error: increment of pointer to unknown structure
Jail.xs:91: error: arithmetic on pointer to an incomplete type
Jail.xs: In function `XS_BSD__Jail_get_xprison':
Jail.xs:118: error: dereferencing pointer to incomplete type
Jail.xs:119: error: dereferencing pointer to incomplete type
Jail.xs:120: error: dereferencing pointer to incomplete type
Jail.xs:121: error: dereferencing pointer to incomplete type
Jail.xs:122: error: dereferencing pointer to incomplete type
Jail.xs: In function `XS_BSD__Jail_jail':
Jail.xs:149: error: storage size of 'j' isn't known
Jail.xs:157: error: invalid application of `sizeof' to incomplete type `jail' 
make: *** [Jail.o] Error 1