Log Message:
devel/py-pysvn: Fix build with non-default PREFIX.

Should resolve:

Info: Found   PyCXX Source in \ 
/tmp/pkgbuild/2024Q4/devel/py-pysvn/work/pysvn-1.9.22/Import/pycxx-7.1.9/Src
Info: Checking for SVN include in /usr/include/subversion-1/svn_client.h
Info: Checking for SVN include in /usr/local/include/subversion-1/svn_client.h
Info: Checking for SVN include in /usr/pkg/include/subversion-1/svn_client.h
Info: Checking for SVN include in /usr/include/subversion-1/svn_client.h
Info: Checking for SVN include in /usr/local/include/subversion-1/svn_client.h
Info: Checking for SVN include in /usr/pkg/include/subversion-1/svn_client.h
Error: Cannot find SVN include svn_client.h - use --svn-inc-dir
*** Error code 1