Changed order of statements in CMakeLists.txt (NOAA-EMC#1440)

Avoided 'DSO missing from command line' error during the linking step through changing the order of compilation flags

Author: MHBalsmeier

model/src/CMakeLists.txt

@@ -152,11 +152,6 @@ if("OMPG" IN_LIST switches)
   target_link_libraries(ww3_lib PUBLIC OpenMP::OpenMP_Fortran)
 endif()
 
-if("MPI" IN_LIST switches)
-  find_package(MPI REQUIRED COMPONENTS Fortran)
-  target_link_libraries(ww3_lib PUBLIC MPI::MPI_Fortran)
-endif()
-
 # Handle PDLIB, SCRIP, SCRIPNC build files directly instead of through configuration file
 if("PDLIB" IN_LIST switches)
   if("SCOTCH" IN_LIST switches)
@@ -172,6 +167,11 @@ elseif("METIS"  IN_LIST switches)
  endif()
 endif()
 
+if("MPI" IN_LIST switches)
+  find_package(MPI REQUIRED COMPONENTS Fortran)
+  target_link_libraries(ww3_lib PUBLIC MPI::MPI_Fortran)
+endif()
+
 if("SCRIP" IN_LIST switches)
   target_sources(ww3_lib PRIVATE ${scrip_src})
 endif()