>  
>  There are two incompatible versions of apr in pkgsrc. apache22 uses the
>  new one (1), and apache20 uses 0.9.  there is code in
>  /usr/pkgsrc/mk/apache.mk to manage which one, and it looks like
>  something isn't quite right.  You might try
>  
>  PKG_APACHE_DEFAULT=apache22
>  
>  in mk.conf
>  and see if ap2-perl then uses apr 1.

That change makes it decide it wants to install apr-0.9.  Which doesn't seem
right at all.

=> Required installed package libtool-base>=1.5.18nb5: libtool-base-1.5.22nb4 
found
=> Required installed package pkg-config>=0.19: pkg-config-0.21 found
=> Required installed package perl>=5.0: perl-5.8.8nb3 found
=> Required installed package apr-0.9.*: NOT found
=> Verifying reinstall for ../../devel/apr0
=> Required installed package digest>=20010302: digest-20060826 found
===> Checking for vulnerabilities in apr-0.9.16.2.0.61
===> Installing for apr-0.9.16.2.0.61
ERROR: apr-1.2.8.2.2.4nb1 is already installed - perhaps an older version?
ERROR: If so, you may use either of:
ERROR:     - "pkg_delete apr-1.2.8.2.2.4nb1" and "/usr/bin/make reinstall"
ERROR:       to upgrade properly
ERROR:     - "/usr/bin/make update" to rebuild the package and all
ERROR:       of its dependencies
ERROR:     - "/usr/bin/make replace" to replace only the package without
ERROR:       re-linking dependencies, risking various problems.
*** Error code 1