# $Id: build_rules.mk,v 1.16 2011/03/16 18:36:25 theurich Exp $
#
# Cygwin.g95.default
#

############################################################
# Default compiler setting.
#
ESMF_F90DEFAULT         = g95
ESMF_CXXDEFAULT         = g++

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

############################################################
# MPI dependent settings.
#
ifeq ($(ESMF_COMM),mpiuni)
# MPI stub library -----------------------------------------
ESMF_F90COMPILECPPFLAGS+= -DESMF_MPIUNI
ESMF_CXXCOMPILECPPFLAGS+= -DESMF_MPIUNI
ESMF_CXXCOMPILEPATHS   += -I$(ESMF_DIR)/src/Infrastructure/stubs/mpiuni
ESMF_MPIRUNDEFAULT      = $(ESMF_DIR)/src/Infrastructure/stubs/mpiuni/mpirun
else
ifeq ($(ESMF_COMM),mpich)
# Mpich ----------------------------------------------------
ESMF_F90COMPILECPPFLAGS+= -DESMF_MPICH
ESMF_CXXCOMPILECPPFLAGS+= -DESMF_MPICH
ESMF_F90DEFAULT         = mpif90
ESMF_F90LINKLIBS       += -lpmpich -lmpich
ESMF_CXXDEFAULT         = mpiCC
ESMF_MPIRUNDEFAULT      = mpirun $(ESMF_MPILAUNCHOPTIONS)
else
ifeq ($(ESMF_COMM),mpich2)
# Mpich2 ---------------------------------------------------
ESMF_F90DEFAULT         = mpif90
ESMF_CXXDEFAULT         = mpicxx
ESMF_MPIRUNDEFAULT      = mpirun $(ESMF_MPILAUNCHOPTIONS)
ESMF_MPIMPMDRUNDEFAULT  = mpiexec $(ESMF_MPILAUNCHOPTIONS)
else
ifeq ($(ESMF_COMM),lam)
# LAM (assumed to be built with g95) -----------------------
ESMF_CXXCOMPILECPPFLAGS+= -DESMF_NO_SIGUSR2
ESMF_F90DEFAULT         = mpif77
ESMF_CXXDEFAULT         = mpic++
ESMF_MPIRUNDEFAULT      = mpirun $(ESMF_MPILAUNCHOPTIONS)
ESMF_MPIMPMDRUNDEFAULT  = mpiexec $(ESMF_MPILAUNCHOPTIONS)
else
ifeq ($(ESMF_COMM),openmpi)
# OpenMPI --------------------------------------------------
ESMF_CXXCOMPILECPPFLAGS+= -DESMF_NO_SIGUSR2
ESMF_F90DEFAULT         = mpif90
ESMF_F90LINKLIBS       += -lmpi_cxx
ESMF_CXXDEFAULT         = mpicxx
ESMF_CXXLINKLIBS       += -lmpi_f77
ESMF_MPIRUNDEFAULT      = mpirun $(ESMF_MPILAUNCHOPTIONS)
ESMF_MPIMPMDRUNDEFAULT  = mpiexec $(ESMF_MPILAUNCHOPTIONS)
else
ifeq ($(ESMF_COMM),user)
# User specified flags -------------------------------------
else
$(error Invalid ESMF_COMM setting: $(ESMF_COMM))
endif
endif
endif
endif
endif
endif

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

############################################################
# g95 runtime library is not currently thread-safe
#
ESMF_PTHREADS := OFF

############################################################
# g95 currently does not support OpenMP
#
ESMF_OPENMP := OFF

############################################################
# Cygwin 1.5.24 does not yet support POSIX IPC (memory mapped files)
#
ESMF_CXXCOMPILECPPFLAGS += -DESMF_NO_POSIXIPC
 
############################################################
# Fortran symbol convention
#
ifeq ($(ESMF_FORTRANSYMBOLS),default)
ESMF_F90COMPILEOPTS       +=
ESMF_F90LINKOPTS          +=
ESMF_CXXCOMPILEOPTS       += -DESMF_LOWERCASE_DOUBLEUNDERSCORE
else
ifeq ($(ESMF_FORTRANSYMBOLS),lowercase_singleunderscore)
ESMF_F90COMPILEOPTS       += -fno-second-underscore
ESMF_F90LINKOPTS          += -fno-second-underscore
ESMF_CXXCOMPILEOPTS       += -DESMF_LOWERCASE_SINGLEUNDERSCORE
else
ifeq ($(ESMF_FORTRANSYMBOLS),lowercase_doubleunderscore)
ESMF_F90COMPILEOPTS       +=
ESMF_F90LINKOPTS          +=
ESMF_CXXCOMPILEOPTS       += -DESMF_LOWERCASE_DOUBLEUNDERSCORE
else
$(error "ESMF_FORTRANSYMBOLS = $(ESMF_FORTRANSYMBOLS)" not supported by ESMF and/or this platform)
endif
endif
endif

############################################################
# On IA64 set long and pointer types to 64-bit
#
ifeq ($(ESMF_ABI),64)
ESMF_CXXCOMPILEOPTS       += -march=k8 -m64 -mcmodel=medium
ESMF_CXXLINKOPTS          += -march=k8 -m64 -mcmodel=medium
ESMF_F90COMPILEOPTS       += -march=k8 -m64 -mcmodel=medium
ESMF_F90LINKOPTS          += -march=k8 -m64 -mcmodel=medium
endif

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

############################################################
# Set huge line length limit for free format files
#
ESMF_F90COMPILEOPTS += -ffree-line-length-huge

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

############################################################
# Determine where gcc's libraries are located
#
ESMF_CXXLIBFULLPATH    = \
  $(shell dirname `$(ESMF_CXXCOMPILER) -print-file-name=libstdc++.a`)

ESMF_F90LINKPATHS  += -L$(ESMF_CXXLIBFULLPATH)
ESMF_F90LINKRPATHS += $(ESMF_F90RPATHPREFIX)$(ESMF_F90LINKPATHS)

############################################################
# Determine where g95's libraries are located
#
ESMF_F90LIBFULLPATH   = \
  $(shell dirname `$(ESMF_F90COMPILER) -print-file-name=libf95.a`)

ESMF_CXXLINKPATHS  += -L$(ESMF_F90LIBFULLPATH)
ESMF_CXXLINKRPATHS += $(ESMF_CXXRPATHPREFIX)$(ESMF_CXXLINKPATHS)

############################################################
# Link against libesmf.a using the F90 linker front-end
#
ESMF_F90LINKLIBS += -lstdc++ -lgcc_s
ESMF_F90LINKOPTS += -Wl,--enable-auto-import

############################################################
# Link against libesmf.a using the C++ linker front-end
#
ESMF_CXXLINKLIBS += -lf95
ESMF_CXXLINKOPTS += -Wl,--enable-auto-import

############################################################
# Shared library options
#
ESMF_SL_SUFFIX         = dll.a
ESMF_SL_LIBOPTS       += -shared
ESMF_SL_LIBLIBS       += -L$(ESMF_F90LIBFULLPATH) -lf95