build_rules.mk

# $Id$
#
# Unicos.gfortran.default
#

############################################################
# Default compiler setting.
#
ESMF_F90DEFAULT         = ftn
ESMF_CXXDEFAULT         = CC
ESMF_CDEFAULT           = cc

############################################################
# Default MPI setting.
#
ifeq ($(ESMF_COMM),default)
export ESMF_COMM := mpi
endif

############################################################
# MPI dependent settings.
#
ifeq ($(ESMF_COMM),mpiuni)
# MPI stub library -----------------------------------------
ESMF_CPPFLAGS          += -DESMF_MPIUNI -I$(ESMF_DIR)/src/Infrastructure/stubs/mpiuni
ESMF_MPIRUNDEFAULT      = $(ESMF_DIR)/src/Infrastructure/stubs/mpiuni/mpirun
else
ifeq ($(ESMF_COMM),mpi)
# Vendor MPI -----------------------------------------------
ESMF_F90LINKLIBS       += 
ESMF_CXXLINKLIBS       += 
ESMF_MPIRUNDEFAULT      = mpirun.srun
ESMF_MPIMPMDRUNDEFAULT  =
else
ifeq ($(ESMF_COMM),user)
# User specified flags -------------------------------------
else
$(error Invalid ESMF_COMM setting: $(ESMF_COMM))
endif
endif
endif

############################################################
# Print compiler version string
#
ESMF_F90COMPILER_VERSION    = ${ESMF_F90COMPILER} --version
ESMF_CXXCOMPILER_VERSION    = ${ESMF_CXXCOMPILER} --version
ESMF_CCOMPILER_VERSION      = ${ESMF_CCOMPILER} --version

############################################################
# Special debug flags
#
ESMF_F90OPTFLAG_G       += -Wall -Wextra -Wconversion -Wno-unused -Wno-unused-dummy-argument -fbacktrace -fimplicit-none -fcheck=all,no-pointer -ffpe-trap=zero,overflow
ESMF_CXXOPTFLAG_G       += -Wall -Wextra -Wno-unused

############################################################
# Fortran symbol convention
#
ifeq ($(ESMF_FORTRANSYMBOLS),default)
ESMF_F90COMPILEOPTS       +=
ESMF_F90LINKOPTS          +=
ESMF_CPPFLAGS             += -DESMF_LOWERCASE_SINGLEUNDERSCORE
else
ifeq ($(ESMF_FORTRANSYMBOLS),lowercase_singleunderscore)
ESMF_F90COMPILEOPTS       += -fno-second-underscore
ESMF_F90LINKOPTS          += -fno-second-underscore
ESMF_CPPFLAGS             += -DESMF_LOWERCASE_SINGLEUNDERSCORE
else
ifeq ($(ESMF_FORTRANSYMBOLS),lowercase_doubleunderscore)
ESMF_F90COMPILEOPTS       += -fsecond-underscore
ESMF_F90LINKOPTS          += -fsecond-underscore
ESMF_CPPFLAGS             += -DESMF_LOWERCASE_DOUBLEUNDERSCORE
else
$(error "ESMF_FORTRANSYMBOLS = $(ESMF_FORTRANSYMBOLS)" not supported by ESMF and/or this platform)
endif
endif
endif

############################################################
# XT compute nodes do not have support for POSIX IPC (memory mapped files)
#
ESMF_CXXCOMPILECPPFLAGS += -DESMF_NO_POSIXIPC

############################################################
# Conditionally add pthread compiler and linker flags
#
ifeq ($(ESMF_PTHREADS),ON)
ESMF_F90COMPILEOPTS += -pthread
ESMF_CXXCOMPILEOPTS += -pthread
ESMF_F90LINKOPTS    += -pthread
ESMF_CXXLINKOPTS    += -pthread
endif

############################################################
# OpenMP compiler and linker flags
#
ESMF_OPENMP_F90COMPILEOPTS += -fopenmp
ESMF_OPENMP_CXXCOMPILEOPTS += -fopenmp
ESMF_OPENMP_F90LINKOPTS    += -fopenmp
ESMF_OPENMP_CXXLINKOPTS    += -fopenmp

############################################################
# OpenACC compiler and linker flags
#
ESMF_OPENACCDEFAULT = OFF
ESMF_OPENACC_F90COMPILEOPTS += -fopenacc
ESMF_OPENACC_CXXCOMPILEOPTS += -fopenacc
ESMF_OPENACC_F90LINKOPTS    += -fopenacc
ESMF_OPENACC_CXXLINKOPTS    += -fopenacc

############################################################
# Need this until the file convention is fixed (then remove these two lines)
#
ESMF_F90COMPILEFREENOCPP = -ffree-form
ESMF_F90COMPILEFIXCPP    = -cpp -ffixed-form

############################################################
# Set unlimited line length limit for free format files
#
ESMF_F90COMPILEOPTS += -ffree-line-length-none

############################################################
# Set rpath syntax
#
ESMF_F90RPATHPREFIX         = -Wl,-rpath,
ESMF_CXXRPATHPREFIX         = -Wl,-rpath,
ESMF_CRPATHPREFIX           = -Wl,-rpath,

############################################################
# Determine where gcc's libraries are located
#
# Note that the result of -print-file-name will be the full path to the file if it is found
# within the compiler installation, and simply the file name verbatim if it is NOT found.
ESMF_LIBSTDCXX := $(shell $(ESMF_CXXCOMPILER) $(ESMF_CXXCOMPILEOPTS) -print-file-name=libstdc++.so)
ifeq ($(ESMF_LIBSTDCXX),libstdc++.so)
ESMF_LIBSTDCXX := $(shell $(ESMF_CXXCOMPILER) $(ESMF_CXXCOMPILEOPTS) -print-file-name=libstdc++.a)
endif
ESMF_F90LINKPATHS += -L$(dir $(ESMF_LIBSTDCXX))
ESMF_F90LINKRPATHS += $(ESMF_F90RPATHPREFIX)$(dir $(ESMF_LIBSTDCXX))

############################################################
# Determine where gfortran's libraries are located
#
# Note that the result of -print-file-name will be the full path to the file if it is found
# within the compiler installation, and simply the file name verbatim if it is NOT found.
ESMF_LIBGFORTRAN := $(shell $(ESMF_F90COMPILER) $(ESMF_F90COMPILEOPTS) -print-file-name=libgfortran.so)
ifeq ($(ESMF_LIBGFORTRAN),libgfortran.so)
ESMF_LIBGFORTRAN := $(shell $(ESMF_F90COMPILER) $(ESMF_F90COMPILEOPTS) -print-file-name=libgfortran.a)
endif
ESMF_CXXLINKPATHS += -L$(dir $(ESMF_LIBGFORTRAN))
ESMF_CXXLINKRPATHS += $(ESMF_CXXRPATHPREFIX)$(dir $(ESMF_LIBGFORTRAN))

############################################################
# Link against libesmf.a using the F90 linker front-end
#
ESMF_F90LINKLIBS += -lrt -lstdc++ -ldl

############################################################
# Link against libesmf.a using the C++ linker front-end
#
ESMF_CXXLINKLIBS += -lrt -lgfortran -ldl

############################################################
# Shared library options
#
ESMF_SL_LIBOPTS  += -shared

############################################################
# Shared object options
#
ESMF_SO_F90COMPILEOPTS  = -fPIC
ESMF_SO_F90LINKOPTS     = -shared
ESMF_SO_F90LINKOPTSEXE  = -Wl,-export-dynamic
ESMF_SO_CXXCOMPILEOPTS  = -fPIC
ESMF_SO_CXXLINKOPTS     = -shared
ESMF_SO_CXXLINKOPTSEXE  = -Wl,-export-dynamic

############################################################
# Disable WebService testing for now
#
# TODO: Remove this variable and associated infrastructure as soon as
# TODO: WebService testing is robust enough to work on all systems.
#
ESMF_NOWEBSERVTESTING = TRUE

############################################################
# Override default C preprocessor on this platform
#
ESMF_CPPDEFAULT       = gcc -E -P -x c