Could somebody tell me why in mk/platform/SunOS.mk PKGLOCALEDIR is set to
'lib', while for all other platforms it is set to 'share'??

This causes problems when building sysutils/gnome-vfs2 package, see:

http://mail-index.netbsd.org/pkgsrc-users/2006/05/04/0000.html
http://mail-index.netbsd.org/pkgsrc-users/2006/05/06/0000.html
http://mail-index.netbsd.org/pkgsrc-users/2006/05/06/0001.html
http://mail-index.netbsd.org/pkgsrc-users/2006/05/06/0002.html
http://mail-index.netbsd.org/pkgsrc-users/2006/05/06/0004.html