Fail to install subversion-1.3.0.r2 while compile with WITH_MOD_DAV_SVN=yes

[Ma Jie]

I'm using FreeBSD 6.0-STABLE. It is OK to compile subversion using
standalone mode. But when I want to use apache2 protocol with
subversion, a compiling failure occured as below:

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# make WITH_MOD_DAV_SVN=yes install
===>  Installing for subversion-1.3.0.r2
===>   subversion-1.3.0.r2 depends on executable:  - not found
===>    Verifying install for  in /usr/ports/www/apache2
===>   Returning to build of subversion-1.3.0.r2
===>   subversion-1.3.0.r2 depends on shared library: expat.5 - found
===>   subversion-1.3.0.r2 depends on shared library: neon.24 - found
===>   subversion-1.3.0.r2 depends on shared library: intl - found
-e -S LIBEXECDIR=/usr/local/libexec/apache2 -a -n dav
libexec/apache2/mod_dav.so
-e: not found
*** Error code 127

Stop in /usr/ports/devel/subversion.
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