Fix paths for generated configs, detect perl
Fix paths for generated configs, detect perl

sourcefrog/librsync,yrgoldteeth/librsync,yrgoldteeth/librsync,librsync/librsync,sourcefrog/librsync,dbaarda/librsync,librsync/librsync,dbaarda/librsync,Salamek/librsync,sourcefrog/librsync,dbaarda/librsync,yrgoldteeth/librsync,librsync/librsync,sourcefrog/librsync,Salamek/librsync,dbaarda/librsync,librsync/librsync,yrgoldteeth/librsync,Salamek/librsync