fix cray compilation

src/libext/elpa/build_elpa.sh

@@ -51,6 +51,7 @@ fi
 if [[ "$FC" = "ftn"  ]] ; then
     MPIF90="ftn"
     MPICC="cc"
+    MPICXX="CC"
 else
     if ! [ -x "$(command -v mpif90)" ]; then
 	echo
@@ -68,7 +69,11 @@ else
     fi
 fi
 if [[  -z "${FC}" ]]; then
-    FC=$($MPIF90 -show|cut -d " " -f 1)
+    if [[ ! -z ${PE_ENV} ]]; then
+	FC=ftn
+    else
+	FC=$($MPIF90 -show|cut -d " " -f 1)
+    fi
 fi
 
 if [[  -z "${BLAS_SIZE}" ]]; then
@@ -85,7 +90,11 @@ if [[   -z "${CC}" ]]; then
     CC=cc
 fi
 if [[   -z "${CXX}" ]]; then
-    CXX=c++
+    if [[ ! -z ${PE_ENV} ]]; then
+	CXX=CC
+    else
+	CXX=c++
+    fi
 fi
 if [[ ${FC} == flang ]] || [[ ${PE_ENV} == AOCC ]]; then
     GOTCLANG=1
@@ -128,6 +137,8 @@ if [[ ${FC} == ifort ]] || [[ ${FC} == ifx ]] || [[ ${PE_ENV} == INTEL ]] ; then
 
 #    CPP="cpp -E"
 fi
+#set USE_MANUALCPP=1 on Crays
+if [[ ! -z ${PE_ENV} ]]; then export USE_MANUALCPP=1; fi
 if [[ ! -z "$MKLROOT"   ]] ; then
     if [[ ${BLAS_SIZE} == 8 ]]; then
 	SCALAPACK_FCFLAGS+=" -I${MKLROOT}/include/intel64/ilp64"
@@ -246,6 +257,7 @@ export SCALAPACK_FCFLAGS+="${MYLINK}"
 export LIBS="${MYLINK}"
 export    FC=$MPIF90
 export CC=$MPICC
+echo FC is $MPIF90 CC is $MPICC CXX is $MPICXX
  FC=$MPIF90 CC=$MPICC CXX=$MPICXX ../configure \
     $sixty4_int \
   CFLAGS="$MYCFLAGS" \
@@ -264,13 +276,8 @@ unset SCALAPACK_FCFLAGS
 unset SCALAPACK_LDFLAGS
 echo mpif90 is `which mpif90`
 echo MPIF90 is "$MPIF90"
-if [[ "$USE_MANUALCPP" == 1 ]]; then
-    echo @@@@ MANUALCPP @@@
-    make FC="$SRCDIR/remove_xcompiler $SRCDIR/manual_cpp mpif90"   -j4
-else
-    make  FC=$MPIF90 CC=$MPICC CXX=$MPICXX -j4
-fi
-
+if [[ "$USE_MANUALCPP" == 1 ]]; then echo @@@@ MANUALCPP @@@; fi
+make FC=$MPIF90 CC=$MPICC CXX=$MPICXX -j4
 if [[ "$?" != "0" ]]; then
     echo " "
     echo "Elpa compilation failed"