I installed php4 this way:
make CONFIGURE-ARGS=--with-xml-rpc 
CONFIGURE-ARGS=--with-expat-dir=/usr/pkg && make install && make clean
Now a newer version is in pkgsrc and I want to update, on 
netbsd.org/Guide/en isn't anything mentioned about updating a package. 
How do I do this ?
Just run the previous line again , or do I justhave to do make update or 
make reinstall (I don't know what make update or reinstall do) or just 
make && make install ?