This change refs #56153

The $(MAKEFLAGS) special variable was misused in the top-level makefile to pass down custom options.  This breaks the capability of using the FV3/makefile as a submake from a larger build system.  The new NEMS build system is entirely makefiles, and calls FV3/makefile via $(MAKE), so this fix is needed before the NEMS commit.

makefile

@@ -23,19 +23,19 @@ FV3_EXE  = fv3.exe
 FV3CAP_LIB  = libfv3cap.a
 
 all: libs
-	$(MAKE) $(FV3_EXE) $(MAKEFLAGS) FMS_DIR=$(FMS_DIR)
+	$(MAKE) $(FV3_EXE) $(MAKE_OPTS) FMS_DIR=$(FMS_DIR)
 
 nems: libs
-	$(MAKE) $(FV3CAP_LIB) $(MAKEFLAGS) FMS_DIR=$(FMS_DIR)
+	$(MAKE) $(FV3CAP_LIB) $(MAKE_OPTS) FMS_DIR=$(FMS_DIR)
 	$(MAKE) esmf_make_fragment FMS_DIR=$(FMS_DIR)
 
 libs:
-	$(MAKE) -C cpl                 $(MAKEFLAGS) FMS_DIR=$(FMS_DIR)
-	$(MAKE) -C $(PHYSP)physics     $(MAKEFLAGS) FMS_DIR=$(FMS_DIR) 32BIT=N  # force gfs physics to 64bit
-	$(MAKE) -C ipd                 $(MAKEFLAGS) FMS_DIR=$(FMS_DIR) 32BIT=N  # force gfs physics to 64bit
-	$(MAKE) -C io                  $(MAKEFLAGS) FMS_DIR=$(FMS_DIR)
-	$(MAKE) -C atmos_cubed_sphere  $(MAKEFLAGS) FMS_DIR=$(FMS_DIR)
-	$(MAKE) -C stochastic_physics  $(MAKEFLAGS) FMS_DIR=$(FMS_DIR) 32BIT=N  # force gfs physics to 64bit
+	$(MAKE) -C cpl                 $(MAKE_OPTS) FMS_DIR=$(FMS_DIR)
+	$(MAKE) -C $(PHYSP)physics     $(MAKE_OPTS) FMS_DIR=$(FMS_DIR) 32BIT=N  # force gfs physics to 64bit
+	$(MAKE) -C ipd                 $(MAKE_OPTS) FMS_DIR=$(FMS_DIR) 32BIT=N  # force gfs physics to 64bit
+	$(MAKE) -C io                  $(MAKE_OPTS) FMS_DIR=$(FMS_DIR)
+	$(MAKE) -C atmos_cubed_sphere  $(MAKE_OPTS) FMS_DIR=$(FMS_DIR)
+	$(MAKE) -C stochastic_physics  $(MAKE_OPTS) FMS_DIR=$(FMS_DIR) 32BIT=N  # force gfs physics to 64bit
 
 $(FV3_EXE): atmos_model.o coupler_main.o atmos_cubed_sphere/libfv3core.a io/libfv3io.a ipd/libipd.a $(PHYSP)physics/lib$(PHYSP)phys.a stochastic_physics/libstochastic_physics.a cpl/libfv3cpl.a fms/libfms.a 
 	$(LD) -o $@ $^ $(NCEPLIBS) $(LDFLAGS)