Philippe 10/07/2018: correct compilation for ECMWF

* Rules.LXifort.mk: use gcc for C compilation + add O2 OPTLEVEL
* Makefile: add FFLAGS to netCDF configure

src/Makefile

@@ -351,7 +351,7 @@ $(CDF_MOD) :
 	CC="$(CC)" CFLAGS="$(NETCDF_OPT)" CPPFLAGS="${INC_NETCDF}" ${CDF_CONF} LDFLAGS="-L${CDF_PATH}/lib64" LIBS="-lhdf5_hl -lhdf5 -lsz -laec -lz" && \
 	$(MAKE) && $(MAKE) install && $(MAKE) clean
 	cd ${DIR_CDFF} && ./configure --disable-shared --prefix=${CDF_PATH} --libdir=${CDF_PATH}/lib64 \
-	CC="$(CC)" CFLAGS="$(NETCDF_OPT)" FC="$(FC)" FCFLAGS="$(NETCDF_OPT)" \
+	CC="$(CC)" CFLAGS="$(NETCDF_OPT)" FC="$(FC)" FCFLAGS="$(NETCDF_OPT)" FFLAGS="$(NETCDF_OPT)"  \
 	CPPFLAGS="${INC_NETCDF}" ${CDF_CONF} LDFLAGS="-L${CDF_PATH}/lib64" LIBS="-lnetcdf -lhdf5_hl -lhdf5 -lsz -laec -lz" && \
 	$(MAKE) && $(MAKE) install && $(MAKE) clean
 

src/Rules.LXifort.mk

@@ -48,6 +48,11 @@ OPT0      = $(OPT_BASE) $(OPT_PERF0) $(OPT_CHECK)
 OPT_NOCB  = $(OPT_BASE) $(OPT_PERF0)
 CFLAGS   += -g
 endif
+ifeq "$(OPTLEVEL)" "O2"
+OPT       = $(OPT_BASE) $(OPT_PERF2)
+OPT0      = $(OPT_BASE) $(OPT_PERF0)
+OPT_NOCB  = $(OPT_BASE) $(OPT_PERF2)
+endif
 ifeq "$(OPTLEVEL)" "O2PAR"
 PAR= -parallel -diag-file -par-report2
 OPT       = $(OPT_BASE) $(OPT_PERF2) $(PAR)
@@ -66,6 +71,7 @@ OPT_NOCB  = $(OPT_BASE) $(OPT_PERF3)
 endif
 #
 #
+CC = gcc
 FC = ifort
 ifeq "$(VER_MPI)" "MPIAUTO"
 ifneq "$(findstring TAU,$(XYZ))" ""