tiny edit

src/makefile_nilu

@@ -17,7 +17,7 @@ LIBPATH = /usr/lib/
 LNK = -o
 CMPL = -c
 LIBS = -lnetcdf -lnetcdff $(NCOPT)
-FFLAGS = -O0 -g -m64 -cpp -mcmodel=medium -fconvert=little-endian -frecord-marker=4 -ffree-form \
+FFLAGS = -O2 -g -m64 -cpp -mcmodel=medium -fconvert=little-endian -frecord-marker=4 -ffree-form \
          -fbacktrace $(NCOPT)
 LDFLAGS  = $(FFLAGS) -L$(LIBPATH) -I$(INCPATH) $(LIBS)
 MAIN = flexpartnoresm
@@ -160,5 +160,5 @@ $(OBJECTS): $(MODOBJS)
 	$(F90) $(LDFLAGS) $(CMPL) $<
 
 clean:
-	rm *.o *.mod
+	\rm *.o *.mod