[Koha] installing snapshot gives chmod error on Koha log files

Hello, I just now tried to install the most recent snapshot of Koha: Koha-a59c28db3e63f956edffd1e79ab9e9cff3a85dea.tar.gz and get this error (when I do 'make install', the files are being written over the earlier installation): $> make install /usr/bin/perl "-Iblib/arch" "-Iblib/lib" fix-perl-path.PL blib chmod: changing permissions of `/home/gsq/koha/var/log/koha-error_log': Operation not permitted chmod: changing permissions of `/home/gsq/koha/var/log/koha-opac-error_log': Operation not permitted Am I doing something wrong or is this a bug? thanks, ->HS