ifdef USE_THREAD
ifeq ($(USE_THREAD), 0)
USE_OPENMP = 0
else
USE_OPENMP = 1
endif
else
USE_OPENMP = 1
endif

ifeq ($(CORE), POWER10)
ifneq ($(C_COMPILER), PGI)
ifeq ($(C_COMPILER), GCC)
ifeq ($(GCCVERSIONGTEQ10), 1)
CCOMMON_OPT += -Ofast -mcpu=power10 -mtune=power10 -mvsx -fno-fast-math
else ifneq ($(GCCVERSIONGT4), 1)
$(warning your compiler is too old to fully support POWER9, getting a newer version of gcc is recommended)
CCOMMON_OPT += -Ofast -mcpu=power8 -mtune=power8 -mvsx -fno-fast-math
else
$(warning your compiler is too old to fully support POWER10, getting a newer version of gcc is recommended)
CCOMMON_OPT += -Ofast -mcpu=power9 -mtune=power9 -mvsx -fno-fast-math
endif
else
CCOMMON_OPT += -Ofast -mcpu=power10 -mtune=power10 -mvsx -fno-fast-math
endif
ifeq ($(F_COMPILER), IBM)
FCOMMON_OPT += -O2 -qrecur -qnosave -qarch=pwr10 -qtune=pwr10 -qfloat=nomaf -qzerosize
else
FCOMMON_OPT += -O2 -frecursive -mcpu=power10 -mtune=power10 -fno-fast-math
endif
endif
endif

ifeq ($(CORE), POWER9)
ifneq ($(C_COMPILER), PGI)
CCOMMON_OPT += -Ofast -mvsx -fno-fast-math
ifeq ($(C_COMPILER), GCC)
ifneq ($(GCCVERSIONGT4), 1)
$(warning your compiler is too old to fully support POWER9, getting a newer version of gcc is recommended)
CCOMMON_OPT += -mcpu=power8 -mtune=power8 
else
CCOMMON_OPT += -mcpu=power9 -mtune=power9 
endif
else
CCOMMON_OPT += -mcpu=power9 -mtune=power9
endif
else
CCOMMON_OPT += -fast -Mvect=simd -Mcache_align
endif
ifneq ($(F_COMPILER), PGI)
ifeq ($(F_COMPILER), IBM)
FCOMMON_OPT += -O2 -qrecur -qnosave -qarch=pwr9 -qtune=pwr9 -qfloat=nomaf -qzerosize
else
FCOMMON_OPT += -O2 -frecursive -fno-fast-math -mcpu=power9 -mtune=power9
endif

ifeq ($(F_COMPILER), GFORTRAN)
ifneq ($(GCCVERSIONGT4), 1)
$(warning your compiler is too old to fully support POWER9, getting a newer version of gcc is recommended)
FCOMMON_OPT += -mcpu=power8 -mtune=power8 
else
FCOMMON_OPT += -mcpu=power9 -mtune=power9 
endif
endif
else
FCOMMON_OPT += -O2 -Mrecursive
endif
endif

ifeq ($(CORE), POWER8)
ifneq ($(C_COMPILER), PGI)
CCOMMON_OPT += -Ofast -mcpu=power8 -mtune=power8 -mvsx  -fno-fast-math
else
CCOMMON_OPT += -fast -Mvect=simd -Mcache_align
endif
ifneq ($(F_COMPILER), PGI)
ifeq ($(OSNAME), AIX)
ifeq ($(F_COMPILER), IBM)
FCOMMON_OPT += -O2 -qrecur -qnosave -qarch=pwr8 -qtune=pwr8 -qfloat=nomaf -qzerosize
else
FCOMMON_OPT += -O1 -frecursive -mcpu=power8 -mtune=power8 -fno-fast-math
endif
else
ifeq ($(F_COMPILER), IBM)
FCOMMON_OPT += -O2 -qrecur -qnosave -qarch=pwr8 -qtune=pwr8 -qfloat=nomaf -qzerosize
else
FCOMMON_OPT += -O2 -frecursive -mcpu=power8 -mtune=power8 -fno-fast-math
endif
endif
else
FCOMMON_OPT += -O2 -Mrecursive
endif
endif

ifeq ($(USE_OPENMP), 1)
ifneq ($(C_COMPILER), PGI)
CCOMMON_OPT += -DUSE_OPENMP -fopenmp
else
CCOMMON_OPT += -DUSE_OPENMP -mp
endif
ifeq ($(F_COMPILER), IBM)
FCOMMON_OPT += -DUSE_OPENMP 
else
ifneq ($(F_COMPILER), PGI)
FCOMMON_OPT += -DUSE_OPENMP -fopenmp
else
FCOMMON_OPT += -DUSE_OPENMP -mp
endif
endif
endif

ifeq ($(C_COMPILER), CLANG)
CCOMMON_OPT += -fno-integrated-as
endif
# workaround for C->FORTRAN ABI violation in LAPACKE
ifeq ($(F_COMPILER), GFORTRAN)
FCOMMON_OPT += -fno-optimize-sibling-calls
endif

FLAMEPATH	= $(HOME)/flame/lib

#ifeq ($(CORE), CELL)
#CELL_SDK_ROOT = /opt/IBM/cell-sdk-1.1/sysroot/usr
#SPU_CC	         = spu-gcc
#EXTRALIB	+= -lspe
#endif

ifeq ($(OSNAME), Linux)
ifdef BINARY64
# COMPILER_PREFIX = powerpc64-linux-
else
# COMPILER_PREFIX = powerpc-linux-
endif
endif

#Either uncomment below line or run make with `USE_MASS=1` to enable support of MASS library
#USE_MASS = 1

ifeq ($(USE_MASS), 1)
# Path to MASS libs, change it if the libs are installed at any other location
MASSPATH        = /opt/ibm/xlmass/8.1.5/lib
COMMON_OPT     += -mveclibabi=mass -ftree-vectorize -funsafe-math-optimizations -DUSE_MASS
EXTRALIB       += -L$(MASSPATH) -lmass -lmassvp8 -lmass_simdp8
endif

ifdef BINARY64


ifeq ($(C_COMPILER)$(F_COMPILER)$(OSNAME), GCCIBMAIX)
$(error Using GCC and XLF on AIX is not a supported combination.)
endif
ifeq ($(C_COMPILER)$(F_COMPILER)$(OSNAME), CLANGGFORTRANAIX)
$(error Using Clang and gFortran on AIX is not a supported combination.)
endif

ifeq ($(OSNAME), AIX)
ifeq ($(C_COMPILER), GCC)
CCOMMON_OPT	+= -mpowerpc64 -maix64
else
CCOMMON_OPT	+= -m64
endif
ifeq ($(COMPILER_F77), g77)
FCOMMON_OPT	+= -mpowerpc64 -maix64
endif
ifeq ($(F_COMPILER), GFORTRAN)
FCOMMON_OPT	+= -mpowerpc64 -maix64
endif
ifeq ($(COMPILER_F77), xlf)
FCOMMON_OPT	+= -q64
endif
ARFLAGS		= -X 64
ASFLAGS		= -a64
endif
else
ifeq ($(OSNAME), AIX)
CCOMMON_OPT	+= -Wa,-a32
ARFLAGS		= -X 32
ASFLAGS		= -a32
endif
endif

# CCOMMON_OPT	+= -maltivec -mabi=altivec

LIBFLAME	= -L$(FLAMEPATH) -llapack2flame -lflame-lapack -lflame-base $(LIBS)

ifeq ($(OSNAME), Darwin)
CCOMMON_OPT	+= -force_cpusubtype_ALL
endif


ifndef BINARY64
ifeq ($(OSNAME), Linux)
ESSLPATH = -L/opt/ibmcmp/lib -L/opt/ibmcmp/xlf/11.1/lib -Wl,-rpath,/opt/ibmcmp/lib -Wl,-rpath,/opt/ibmcmp/xlf/11.1/lib -lxlf90_r -lxlomp_ser -lxlfmath -lxl -lpthread
else
ESSLPATH = -lxlf90_r
endif


LIBVECLIB	= -framework VecLib
ifndef SMP
LIBATLAS	= -L/usr/lib/atlas3.7.11 -lf77blas -latlas -lg2c -lm
LIBESSL		= -lessl $(ESSLPATH) ../../level1/others/libmisc.a -lm
else
LIBATLAS	= -L/usr/lib/atlas3.7.11p -lptf77blas -latlas -lm -lpthread
LIBESSL		= -lesslsmp $(ESSLPATH)  ../../level1/others/libmisc.a -lm
endif
else
ifeq ($(OSNAME), Linux)
ESSLPATH = -L/opt/ibmcmp/lib64 -Wl,-rpath,/opt/ibmcmp/lib64 -L/opt/ibmcmp/xlf/11.1/lib64 -Wl,-rpath,/opt/ibmcmp/xlf/11.1/lib64 -lxlf90_r -lxlomp_ser
else
ESSLPATH = -lxlf90_r
endif

LIBVECLIB	= /System/Library/Frameworks/vecLib.framework/Versions/Current/vecLib

ifndef SMP
LIBATLAS	= -L/usr/lib64/atlas3.7.11  -lf77blas -latlas -lg2c -lm
LIBESSL		= -lessl $(ESSLPATH) -lm
else
LIBATLAS	= -L/usr/lib64/atlas3.7.11p -lptf77blas -latlas -lm -lpthread
LIBESSL		= -lesslsmp $(ESSLPATH) -lxlsmp -lm
endif
endif