Merge pull request #1428 from jvgeiger/feature/rtm-gnu-compilers

Enable compiling RTM support with GNU compilers

docs/LISF_installation_guide/dependencies.adoc

@@ -133,7 +133,7 @@ NOTE: LDT-only dependency
 
 NOTE: LIS-only dependency
 
-If you wish to enable LIS' RTM support, then you must install the CRTM library from the Joint Centers for Satellite Data Assimilation (JCSDA).  First go to http://ftp.emc.ncep.noaa.gov/jcsda/CRTM/Repository/ and fill out the CRTM.Subversion_Account_Request.pdf form.  Once you have access to their Subversion repository, checkout revision 9604 of the trunk.
+If you wish to enable LIS`' RTM support, then you must install the CRTM library from the Joint Centers for Satellite Data Assimilation (JCSDA).  First go to http://ftp.emc.ncep.noaa.gov/jcsda/CRTM/Repository/ and fill out the CRTM.Subversion_Account_Request.pdf form.  Once you have access to their Subversion repository, checkout revision 9604 of the trunk.
 
 Please create a directory outside of the LIS source code to checkout the CRTM library into.  Then, within that new directory, run:
 
@@ -159,25 +159,33 @@ Next compile and install the CRTM library:
 
 NOTE: LIS-only dependency
 
-If you wish to enable LIS' RTM support, then you must manually compile an included library.
+If you wish to enable LIS`' RTM support, then you must manually compile an included library.
 
 ....
 % cd $WORKING/lib/lis-cmem3
-% gmake
+% LIS_ARCH=linux_ifc make
 ....
 
+NOTE: If using the GNU compilers, set `LIS_ARCH` to linux_gfortran.
+
+IMPORTANT: linux_ifc and linux_gfortran are the only supported architectures.
+
 ==== LIS-CRTM-PROFILE-UTILITY library
 
 NOTE: LIS-only dependency
 
-If you wish to enable LIS' RTM support, then you must manually compile an included library.
+If you wish to enable LIS`' RTM support, then you must manually compile an included library.
 
 ....
 % cd $WORKING/lib/lis-crtm-profile-utility
-% gmake
-% gmake install
+% LIS_ARCH=linux_ifc make
+% LIS_ARCH=linux_ifc make install
 ....
 
+NOTE: If using the GNU compilers, set `LIS_ARCH` to linux_gfortran.
+
+IMPORTANT: linux_ifc and linux_gfortran are the only supported architectures.
+
 === Second order dependencies
 
 ==== OpenJPEG version 2.4.0 (or higher)

lis/lib/lis-cmem3/Makefile

@@ -1,13 +1,24 @@
 
 # Compiler/Linker
+ifeq ($(LIS_ARCH),linux_ifc)
 FC = ifort
 LD = ifort 
+else ifeq ($(LIS_ARCH),linux_gfortran)
+FC = gfortran
+LD = gfortran
+else
+$(error "Please specify the compiler via the LIS_ARCH env variable.  Only linux_ifc and linux_gfortran are supported. See the LISF Installation Guide for more information.")
+endif
 
 # compiler/linker flags
 # Compile with DEBUG messages
 #FCFLAGS = -DDEBUG -fpp -g -u -traceback -fpe0 -nomixed_str_len_arg -names lowercase -convert big_endian -assume byterecl -I/home/ytian/proj-disk/libs/CRTM_Profile_Utility_intel_11_1_038/include
 # Compile without DEBUG messages
+ifeq ($(LIS_ARCH),linux_ifc)
 FCFLAGS = -fpp -g -u -traceback -fpe0 -nomixed_str_len_arg -names lowercase -convert big_endian -assume byterecl 
+else ifeq ($(LIS_ARCH),linux_gfortran)
+FCFLAGS = -cpp -g -u -fbacktrace -ffpe-trap=invalid,zero,overflow -fconvert=big-endian
+endif
 #-I/home/ytian/proj-disk/libs/CRTM_Profile_Utility_intel_11_1_038/include
 
 #LIBS = /home/ytian/proj-disk/libs/CRTM_Profile_Utility_intel_11_1_038/lib/libProfile_Utility.a

lis/lib/lis-crtm-profile-utility/make.macros

@@ -509,8 +509,15 @@ LINUX_FLAGS_ABSOFT_PROD  = $(LINUX_FLAGS_ABSOFT)
 
 #LINUX_FLAGS = $(LINUX_FLAGS_LAHEY)
 #LINUX_FLAGS = $(LINUX_FLAGS_PGI)
-LINUX_FLAGS = $(LINUX_FLAGS_INTEL)
+#LINUX_FLAGS = $(LINUX_FLAGS_INTEL)
 #LINUX_FLAGS = $(LINUX_FLAGS_G95)
 #LINUX_FLAGS = $(LINUX_FLAGS_GFORTRAN)
 #LINUX_FLAGS = $(LINUX_FLAGS_ABSOFT)
 
+ifeq ($(LIS_ARCH),linux_ifc)
+LINUX_FLAGS = $(LINUX_FLAGS_INTEL)
+else ifeq ($(LIS_ARCH),linux_gfortran)
+LINUX_FLAGS = $(LINUX_FLAGS_GFORTRAN)
+else
+$(error "Please specify the compiler via the LIS_ARCH env variable.  Only linux_ifc and linux_gfortran are supported. See the LISF Installation Guide for more information.")
+endif