# +-======-+ 
#  Copyright (c) 2003-2018 United States Government as represented by 
#  the Admistrator of the National Aeronautics and Space Administration.  
#  All Rights Reserved.
#  
#  THIS OPEN  SOURCE  AGREEMENT  ("AGREEMENT") DEFINES  THE  RIGHTS  OF USE,
#  REPRODUCTION,  DISTRIBUTION,  MODIFICATION AND REDISTRIBUTION OF CERTAIN 
#  COMPUTER SOFTWARE ORIGINALLY RELEASED BY THE UNITED STATES GOVERNMENT AS 
#  REPRESENTED BY THE GOVERNMENT AGENCY LISTED BELOW ("GOVERNMENT AGENCY").  
#  THE UNITED STATES GOVERNMENT, AS REPRESENTED BY GOVERNMENT AGENCY, IS AN 
#  INTENDED  THIRD-PARTY  BENEFICIARY  OF  ALL  SUBSEQUENT DISTRIBUTIONS OR 
#  REDISTRIBUTIONS  OF THE  SUBJECT  SOFTWARE.  ANYONE WHO USES, REPRODUCES, 
#  DISTRIBUTES, MODIFIES  OR REDISTRIBUTES THE SUBJECT SOFTWARE, AS DEFINED 
#  HEREIN, OR ANY PART THEREOF,  IS,  BY THAT ACTION, ACCEPTING IN FULL THE 
#  RESPONSIBILITIES AND OBLIGATIONS CONTAINED IN THIS AGREEMENT.
#  
#  Government Agency: National Aeronautics and Space Administration
#  Government Agency Original Software Designation: GSC-15354-1
#  Government Agency Original Software Title:  GEOS-5 GCM Modeling Software
#  User Registration Requested.  Please Visit http://opensource.gsfc.nasa.gov
#  Government Agency Point of Contact for Original Software:  
#  			Dale Hithon, SRA Assistant, (301) 286-2691
#  
# +-======-+ 
#
# System dependent FLAGS for FVdycoreCubed.
#

ifneq ($(ESMA_FC), pgfortran)
  FCNAME = $(word 1,$(shell $(FC) --version))
endif

# Intel Fortran Compiler
# ----------------------
ifeq ($(FCNAME),ifort)

  USER_FFLAGS = -stack_temps -safe_cray_ptr -assume byterecl \
                -fp-model source -ftz -align all -fno-alias -align dcommons
  
  # NOTE: This used to have -i_dynamic which would make a shared library. 
  #       But it has been obsoleted since Intel 13. We do not use shared
  #       libraries. 

endif

ifeq ($(FCNAME), GNU)  # gfortran

        USER_FFLAGS = -DNO_R16 -DNO_CRAY_POINTERS

endif

ifeq ($(ESMA_FC), gfortran)  # gfortran

        USER_FFLAGS = -DNO_R16 -fcray-pointer

endif

ifeq ($(ESMA_FC), ftn)
      USER_FFLAGS = -DNO_R16
endif

ifeq ($(ESMA_FC), pgfortran)
      USER_FFLAGS = -DNO_R16
endif