Revert "linux: use /usr/lib64 on 64bit machines if it exists"
Revert "linux: use /usr/lib64 on 64bit machines if it exists"

This reverts commit 217d1b74c2b54549a47c1f2e5c7cc44ebc9b33d4.

zioproto/olsrd,duydb2/olsr,diogomg/olsrd,zioproto/olsrd-gsoc2012,zioproto/olsrd,servalproject/olsr,duydb2/olsr,nolith/olsrd,duydb2/olsr,diogomg/olsrd-binary-heap,nolith/olsrd,sebkur/olsrd,zioproto/olsrd-gsoc2012,ninuxorg/olsrd,sebkur/olsrd,nolith/olsrd,zioproto/olsrd-gsoc2012,diogomg/olsrd-binary-heap,servalproject/olsr,ninuxorg/olsrd,duydb2/olsr,sebkur/olsrd,tdz/olsrd,tdz/olsrd,zioproto/olsrd,duydb2/olsr,sebkur/olsrd,cholin/olsrd,nolith/olsrd,cholin/olsrd,servalproject/olsr,cholin/olsrd,zioproto/olsrd-gsoc2012,sebkur/olsrd,duydb2/olsr,acinonyx/olsrd,acinonyx/olsrd,duydb2/olsr,zioproto/olsrd-gsoc2012,sebkur/olsrd,diogomg/olsrd,nolith/olsrd,diogomg/olsrd-binary-heap,diogomg/olsrd,ninuxorg/olsrd,diogomg/olsrd,diogomg/olsrd,acinonyx/olsrd,zioproto/olsrd,servalproject/olsr,tdz/olsrd,tdz/olsrd,acinonyx/olsrd,diogomg/olsrd-binary-heap,diogomg/olsrd-binary-heap,ninuxorg/olsrd,tdz/olsrd,diogomg/olsrd-binary-heap,acinonyx/olsrd,servalproject/olsr,servalproject/olsr,zioproto/olsrd,duydb2/olsr,diogomg/olsrd,diogomg/olsrd,cholin/olsrd,diogomg/olsrd-binary-heap,ninuxorg/olsrd,zioproto/olsrd-gsoc2012,cholin/olsrd