tutorial.patch

diff --git a/laghos.cpp b/laghos.cpp
index 3d756ea..2ac8c04 100644
--- a/laghos.cpp
+++ b/laghos.cpp
@@ -84,7 +84,7 @@ static void Checks(const int dim, const int ti, const double norm, int &checks);
 int main(int argc, char *argv[])
 {
    // Initialize MPI.
-   MPI_Session mpi(argc, argv);
+   mfem::MPI_Session mpi(argc, argv);
    const int myid = mpi.WorldRank();
 
    // Print the banner.
diff --git a/makefile b/makefile
index a59f844..dbeba13 100644
--- a/makefile
+++ b/makefile
@@ -55,7 +55,7 @@ make style
 
 endef
 
-NPROC = $(shell getconf _NPROCESSORS_ONLN)
+NPROC ?= $(shell getconf _NPROCESSORS_ONLN)
 GOALS = help clean distclean style setup mfem metis hypre
 
 # Default installation location
@@ -248,28 +248,28 @@ tests:
 
 # Setup: download & install third party libraries: HYPRE, METIS & MFEM
 
-HYPRE_URL = https://computation.llnl.gov/projects/hypre-scalable-linear-solvers-multigrid-methods
+HYPRE_URL = https://github.com/hypre-space/hypre
 HYPRE_VER = 2.11.2
 HYPRE_DIR = hypre
 hypre:
 	@(if [[ ! -e ../$(HYPRE_DIR) ]]; then cd ..; \
-		wget -nc $(HYPRE_URL)/download/hypre-$(HYPRE_VER).tar.gz &&\
-		tar xzvf hypre-$(HYPRE_VER).tar.gz &&\
+		wget -nc $(HYPRE_URL)/archive/v$(HYPRE_VER).tar.gz &&\
+		tar xzvf v$(HYPRE_VER).tar.gz &&\
 		ln -s hypre-$(HYPRE_VER) $(HYPRE_DIR) &&\
 		cd $(HYPRE_DIR)/src &&\
-		./configure --disable-fortran --without-fei CC=mpicc CXX=mpic++ &&\
+		./configure --disable-fortran --without-fei CC=${HPCTOOLKIT_MPI_CC} CXX=${HPCTOOLKIT_MPI_CXX} &&\
 		make -j $(NPROC);	else echo "Using existing ../$(HYPRE_DIR)"; fi)
 
-METIS_URL = http://glaros.dtc.umn.edu/gkhome/fetch/sw/metis
+METIS_URL = https://github.com/mfem/tpls/raw/gh-pages
 METIS_VER = 4.0.3
 METIS_DIR = metis-4.0
 metis:
 	@(if [[ ! -e ../$(METIS_DIR) ]]; then cd ..; \
-		wget -nc $(METIS_URL)/OLD/metis-$(METIS_VER).tar.gz &&\
+		wget -nc $(METIS_URL)/metis-$(METIS_VER).tar.gz &&\
 		tar zxvf metis-$(METIS_VER).tar.gz &&\
 		ln -s metis-$(METIS_VER) $(METIS_DIR) &&\
 		cd $(METIS_DIR) &&\
-		make -j $(NPROC) OPTFLAGS="-O2";\
+		make -j $(NPROC) OPTFLAGS="-O2" COPTIONS="-std=c89";\
 		else echo "Using existing ../$(METIS_DIR)"; fi)
 
 MFEM_GIT = https://github.com/mfem/mfem.git
@@ -279,6 +279,6 @@ mfem: hypre metis
 	@(if [[ ! -e ../mfem ]]; then cd ..; \
 		git clone --single-branch --branch master --depth 1 $(MFEM_GIT) &&\
 		cd mfem &&\
-		make $(MFEM_BUILD) -j $(NPROC); else echo "Using existing ../mfem"; fi)
+		make $(MFEM_BUILD) -j $(NPROC) CC=${HPCTOOLKIT_LAGHOS_C_COMPILER}; else echo "Using existing ../mfem"; fi)
 
 setup: mfem