Add switch for each executable not to compile unnecessary executables

CMakeLists.txt

@@ -32,6 +32,34 @@ option(OPENMP "Enable OpenMP Threading" ON)
 # Echo user options
 message(STATUS "OPENMP ................. ${OPENMP}")
 
+list(APPEND SUBLIST "FV3_ENSMEAN_RECENTER")
+list(APPEND SUBLIST "ADJUST_SOILTQ")
+list(APPEND SUBLIST "BLENDING")
+list(APPEND SUBLIST "BUFRSND")
+list(APPEND SUBLIST "CLOUDANALYSIS")
+list(APPEND SUBLIST "ENS_MEAN_RECENTER")
+list(APPEND SUBLIST "GEN_CS")
+list(APPEND SUBLIST "LAKESURGERY")
+list(APPEND SUBLIST "LARCCLD")
+list(APPEND SUBLIST "LIGHTNING")
+list(APPEND SUBLIST "METARCLD")
+list(APPEND SUBLIST "MOSAIC")
+list(APPEND SUBLIST "PM")
+list(APPEND SUBLIST "RADMON")
+list(APPEND SUBLIST "REF2TTEN")
+list(APPEND SUBLIST "RTMA_MINMAXTRH")
+list(APPEND SUBLIST "UPDATE_BC")
+list(APPEND SUBLIST "UPDATE_GVF")
+list(APPEND SUBLIST "UPDATE_ICE")
+list(APPEND SUBLIST "UPDATE_SNOW")
+list(APPEND SUBLIST "UPDATE_SST")
+list(APPEND SUBLIST "USE_RAPHRRR_SFC")
+option(RRFS_UTL_ALL "" ON)
+foreach(X IN LISTS SUBLIST)
+  string(TOLOWER ${X} x)
+  option(${X} "Enable building ${x}.fd" ${RRFS_UTL_ALL})
+endforeach()
+
 # Dependencies
 find_package(MPI REQUIRED)
 find_package(NetCDF REQUIRED Fortran)
@@ -56,26 +84,10 @@ find_package(gsi REQUIRED)
 
 add_subdirectory(baselib/regional_esg_grid.fd)
 add_subdirectory(baselib)
-add_subdirectory(mosaic)
-add_subdirectory(lightning)
-add_subdirectory(ref2tten)
-add_subdirectory(cloudanalysis)
-add_subdirectory(larccld)
-add_subdirectory(metarcld)
-add_subdirectory(update_sst)
-add_subdirectory(use_raphrrr_sfc)
-add_subdirectory(update_gvf)
-add_subdirectory(update_snow)
-add_subdirectory(update_ice)
-add_subdirectory(lakesurgery)
-add_subdirectory(gen_cs)
-add_subdirectory(adjust_soiltq)
-add_subdirectory(update_bc)
-add_subdirectory(ens_mean_recenter)
-add_subdirectory(FV3_ensmean_recenter)
-add_subdirectory(bufrsnd)
-add_subdirectory(radmon)
-add_subdirectory(rtma_minmaxtrh)
-add_subdirectory(pm)
-add_subdirectory(blending)
 
+foreach(X IN LISTS SUBLIST)
+  if(${${X}})
+    string(TOLOWER ${X} x)
+    add_subdirectory(${x}.fd)
+  endif()
+endforeach()