Build: choose c compilers for sundials build

Build/Scripts/SUNDIALS/confmake_impi_intel_linux.sh

@@ -1,10 +1,30 @@
 export SUNDIALS_INSTALL_PREFIX=$FIREMODELS/libs/sundials/$SUNDIALS_VERSION
 
+# Check for Intel C compiler (icx or icc)
+if command -v icx &> /dev/null; then
+    CC=icx
+elif command -v icc &> /dev/null; then
+    CC=icc
+else
+    echo "Error: Neither icx nor icc is available on this system."
+    exit 1
+fi
+
+# Check for Intel C++ compiler (icpx or icpc)
+if command -v icpx &> /dev/null; then
+    CXX=icpx
+elif command -v icpc &> /dev/null; then
+    CXX=icpc
+else
+    echo "Error: Neither icpx nor icpc is available on this system."
+    exit 1
+fi
+
 cmake ../ \
 -DCMAKE_INSTALL_PREFIX=$SUNDIALS_INSTALL_PREFIX \
 -DEXAMPLES_INSTALL_PATH=$SUNDIALS_INSTALL_PREFIX/examples \
--DCMAKE_C_COMPILER=icx \
--DCMAKE_CXX_COMPILER=icpx \
+-DCMAKE_C_COMPILER=$CC \
+-DCMAKE_CXX_COMPILER=$CXX \
 -DCMAKE_Fortran_COMPILER=ifort \
 -DBUILD_FORTRAN_MODULE_INTERFACE=ON \
 -DEXAMPLES_ENABLE_CXX=OFF \