os dep optimization: small speedup/unbloat on linux
os dep optimization: small speedup/unbloat on linux

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