#
# gfortran under linux.
#
LINUX = true
#
# ID for "compare_module.pl script
#
COMPILER=GNU-gfortran-on-LINUX
#
#
# WARNING WARNING - override default for Cray XT - parallel build only.
#
COMMS_ARCH:=mpi
COMMS_OVERRIDDEN := true
#
#
ifeq ($(COMMS_ARCH),mpi)
F90 = ftn
else
F90 = gfortran
endif
#
# Flag to specify module path search directory
#
MODULE_PREFIX=-I
#
#  Extension for object files  ".o" for unix
#
OBJ_EXTN = o
#
# General flags
#
FFLAGS_E = -fconvert=big-endian -frecord-marker=4
#
# Optimiser, performance and debugging flags
#
ifeq ($(BUILD),warnings)
OPT = -Ddebug -Wall -O0 -g -fbacktrace
else
ifeq ($(BUILD),debug)
OPT = -Ddebug -O0 -g -fbounds-check -fbacktrace
else
ifeq ($(BUILD),intermediate)
OPT = -O1 -g -fbacktrace
else
# Modified to remove '-march=native' flag
OPT = -O3 -funroll-loops -ftree-loop-distribution
endif
endif
endif
#
# Don't change this line
#
FFLAGS = $(FFLAGS_E) $(OPT) $(DEFS) $(INC)

#
# Libraries
#
ifeq ($(MATHLIBS),default)
MATHLIBS=
endif
#
# Cray scilib (Really only needed for serial compile - ftn includes it
#
ifeq ($(MATHLIBS),scilib)
# Modified to remove explicit linking
MATH_LIBS = 
endif
#
# Intel MKL - static link
#
ifeq ($(MATHLIBS),mkl9)
MATH_LIBS =  -Bstatic -lmkl_gfortran -lmkl_lapack -lmkl_em64t -lguide -Bdynamic -lpthread 
endif
ifeq ($(MATHLIBS),mkl10)
MATH_LIBS =  -Wl,-Bstatic -Wl,--start-group -lmkl_gf_lp64 -lmkl_sequential -lmkl_core  -Wl,--end-group -Wl,-Bdynamic
endif
#
# AMD ACML
#
ifeq ($(MATHLIBS),acml)
MATH_LIBS = -lacml
endif
#
# Kashushige Goto's fast assembler BLAS
#
ifeq ($(MATHLIBS),goto2)
MATH_LIBS = -lgoto2
endif
ifeq ($(MATHLIBS),goto)
MATH_LIBS = -lgoto -llapack -lgoto -lpthread
endif
#
# ATLAS BLAS
#
ifeq ($(MATHLIBS),atlas)
#  Link with the ATLAS blas and LAPACK routines.
MATH_LIBS = -llapack -lf77blas -lcblas -latlas
endif
#
# Generic Fortran BLAS
#
ifeq ($(MATHLIBS),generic)
MATH_LIBS = -llapack -lblas 
endif

#
# FFT libs
#
ifeq ($(FFT),default)
FFT = generic
endif
ifeq ($(FFT),fftw)
FFT_LIBS = -lfftw
endif
ifeq ($(FFT),fftw3)
FFT_LIBS = -lfftw3
endif
#
# Any additional libraries required. 
#
EXTRA_LIBS =
#
# Link-time options. Add any additional library search directories here.
#
LD_FLAGS = -static $(OPT)
## Total libraries -- should not need to change this.
# CASTEP_LIBS should be set up by specific makefiles.
#
LIBS = $(CASTEP_LIBS) $(MATH_LIBS) $(FFT_LIBS) $(COMMS_LIB) $(EXTRA_LIBS)