clean up how rpath and -L are added to LDFLAGS so that each entry is …

…separate -- prevents errors installing on Mac arm64 because multiple rpath values aren't read using :. Also use MET_PROJLIB

internal/scripts/installation/compile_MET_all.sh

@@ -811,6 +811,10 @@ if [ -z ${MET_PROJ} ]; then
   export MET_PROJ=${LIB_DIR}
 fi
 
+if [ -z ${MET_PROJLIB} ]; then
+  export MET_PROJLIB=${MET_PROJ}/lib64
+fi
+
 export MET_PYTHON_BIN_EXE=${MET_PYTHON_BIN_EXE:=${MET_PYTHON}/bin/python3}
 export MET_PYTHON_LD
 export MET_PYTHON_CC
@@ -822,9 +826,21 @@ fi
 # https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html
 # ${parameter:+word}
 # If parameter is null or unset, nothing is substituted, otherwise the expansion of word is substituted.
-export LDFLAGS="${LDFLAGS} -Wl,-rpath,${LIB_DIR}/lib:${MET_PROJ:+:$MET_PROJ/lib64}:${LIB_DIR}/lib${MET_NETCDF:+:$MET_NETCDF/lib}${MET_HDF5:+:$MET_HDF5/lib}${MET_BUFRLIB:+:$MET_BUFRLIB}${MET_GRIB2CLIB:+:$MET_GRIB2CLIB}${MET_PYTHON_LIB:+:$MET_PYTHON_LIB}${MET_GSL:+:$MET_GSL/lib}${ADDTL_DIR:+:$ADDTL_DIR}"
-export LDFLAGS="${LDFLAGS} -Wl,-rpath,${LIB_JASPER:+$LIB_JASPER}${LIB_LIBPNG:+:$LIB_PNG}${LIB_Z:+$LIB_Z}"
-export LDFLAGS="${LDFLAGS} ${LIB_JASPER:+-L$LIB_JASPER} ${LIB_LIBPNG:+-L$LIB_LIBPNG} ${MET_HDF5:+-L$MET_HDF5/lib} ${ADDTL_DIR:+-L$ADDTL_DIR}"
+
+# add LIB_DIR/lib to rpath and -L
+export LDFLAGS="${LDFLAGS} -Wl,-rpath,${LIB_DIR}/lib -L${LIB_DIR}/lib"
+
+# if variables are set, add <VALUE>/lib to rpath and -L
+for x in $MET_NETCDF $MET_HDF5 $MET_GSL; do
+    export LDFLAGS="${LDFLAGS} ${x:+-Wl,-rpath,$x/lib -L$x/lib}"
+#    #if [[ "$STR" == *"$SUB"* ]];
+done
+
+# if variables are set, add <VALUE> to rpath and -L
+for x in $MET_BUFRLIB $MET_GRIB2CLIB $MET_PYTHON_LIB $LIB_JASPER $LIB_LIBPNG $LIB_TIFF $LIB_Z $MET_PROJLIB $ADDTL_DIR; do
+    export LDFLAGS="${LDFLAGS} ${x:+-Wl,-rpath,$x -L$x}"
+done
+
 export LIBS="${LIBS} -lhdf5_hl -lhdf5 -lz -ltiff"
 export MET_FONT_DIR=${TEST_BASE}/fonts