Use AS_IF in mpi.m4
Use AS_IF in mpi.m4

libMesh/libmesh,jwpeterson/libmesh,roystgnr/libmesh,capitalaslash/libmesh,pbauman/libmesh,giorgiobornia/libmesh,90jrong/libmesh,capitalaslash/libmesh,BalticPinguin/libmesh,capitalaslash/libmesh,pbauman/libmesh,hrittich/libmesh,BalticPinguin/libmesh,giorgiobornia/libmesh,libMesh/libmesh,BalticPinguin/libmesh,90jrong/libmesh,hrittich/libmesh,jwpeterson/libmesh,roystgnr/libmesh,capitalaslash/libmesh,dschwen/libmesh,BalticPinguin/libmesh,capitalaslash/libmesh,dschwen/libmesh,hrittich/libmesh,libMesh/libmesh,roystgnr/libmesh,90jrong/libmesh,roystgnr/libmesh,hrittich/libmesh,jwpeterson/libmesh,BalticPinguin/libmesh,90jrong/libmesh,roystgnr/libmesh,roystgnr/libmesh,hrittich/libmesh,giorgiobornia/libmesh,libMesh/libmesh,giorgiobornia/libmesh,jwpeterson/libmesh,pbauman/libmesh,libMesh/libmesh,hrittich/libmesh,libMesh/libmesh,hrittich/libmesh,90jrong/libmesh,pbauman/libmesh,giorgiobornia/libmesh,capitalaslash/libmesh,giorgiobornia/libmesh,pbauman/libmesh,dschwen/libmesh,dschwen/libmesh,90jrong/libmesh,jwpeterson/libmesh,90jrong/libmesh,giorgiobornia/libmesh,capitalaslash/libmesh,pbauman/libmesh,jwpeterson/libmesh,BalticPinguin/libmesh,giorgiobornia/libmesh,capitalaslash/libmesh,jwpeterson/libmesh,BalticPinguin/libmesh,90jrong/libmesh,dschwen/libmesh,giorgiobornia/libmesh,jwpeterson/libmesh,dschwen/libmesh,90jrong/libmesh,libMesh/libmesh,pbauman/libmesh,pbauman/libmesh,BalticPinguin/libmesh,dschwen/libmesh,pbauman/libmesh,hrittich/libmesh,roystgnr/libmesh,hrittich/libmesh,dschwen/libmesh,roystgnr/libmesh,libMesh/libmesh