system.cmake

##
## Author: Hank Anderson <hank@statease.com>
## Description: Ported from OpenBLAS/Makefile.system
##
set(NETLIB_LAPACK_DIR "${PROJECT_SOURCE_DIR}/lapack-netlib")

# System detection, via CMake.
include("${PROJECT_SOURCE_DIR}/cmake/system_check.cmake")

if(CMAKE_CROSSCOMPILING AND NOT DEFINED TARGET)
  # Detect target without running getarch
  if (ARM64)
    set(TARGET "ARMV8")
  elseif(ARM)
    set(TARGET "ARMV7") # TODO: Ask compiler which arch this is
  else()
    message(FATAL_ERROR "When cross compiling, a TARGET is required.")
  endif()
endif()

# Other files expect CORE, which is actually TARGET and will become TARGET_CORE for kernel build. Confused yet?
# It seems we are meant to use TARGET as input and CORE internally as kernel.
if(NOT DEFINED CORE AND DEFINED TARGET)
  set(CORE ${TARGET})
endif()

# TARGET_CORE will override TARGET which is used in DYNAMIC_ARCH=1.
if (DEFINED TARGET_CORE)
  set(TARGET ${TARGET_CORE})
endif ()

# Force fallbacks for 32bit
if (DEFINED BINARY AND DEFINED TARGET AND BINARY EQUAL 32)
  message(STATUS "Compiling a ${BINARY}-bit binary.")
  set(NO_AVX 1)
  if (${TARGET} STREQUAL "HASWELL" OR ${TARGET} STREQUAL "SANDYBRIDGE" OR ${TARGET} STREQUAL "SKYLAKEX" OR ${TARGET} STREQUAL "COOPERLAKE" OR ${TARGET} STREQUAL "SAPPHIRERAPIDS")
    set(TARGET "NEHALEM")
  endif ()
  if (${TARGET} STREQUAL "BULLDOZER" OR ${TARGET} STREQUAL "PILEDRIVER" OR ${TARGET} STREQUAL "ZEN")
    set(TARGET "BARCELONA")
  endif ()
  if (${TARGET} STREQUAL "ARMV8" OR ${TARGET} STREQUAL "CORTEXA57" OR ${TARGET} STREQUAL "CORTEXA53" OR ${TARGET} STREQUAL "CORTEXA55")
    set(TARGET "ARMV7")
  endif ()
  if (${TARGET} STREQUAL "POWER8" OR ${TARGET} STREQUAL "POWER9" OR ${TARGET} STREQUAL "POWER10")
    set(TARGET "POWER6")
  endif ()
endif ()


if (DEFINED TARGET)
  message(STATUS "-- -- -- -- -- -- -- -- -- -- -- -- --")
  message(STATUS "Targeting the ${TARGET} architecture.")
  set(GETARCH_FLAGS "-DFORCE_${TARGET}")
endif ()

# On x86_64 build getarch with march=native. This is required to detect AVX512 support in getarch.
if (X86_64 AND NOT (${CMAKE_C_COMPILER_ID} STREQUAL "PGI" OR ${CMAKE_C_COMPILER_ID} STREQUAL "NVHPC"))
  set(GETARCH_FLAGS "${GETARCH_FLAGS} -march=native")
endif ()

# On x86 no AVX support is available
if (X86 OR X86_64)
if ((DEFINED BINARY AND BINARY EQUAL 32) OR ("$CMAKE_SIZEOF_VOID_P}" EQUAL "4"))
  set(GETARCH_FLAGS "${GETARCH_FLAGS} -DNO_AVX -DNO_AVX2 -DNO_AVX512")
endif ()
endif ()

if (INTERFACE64)
  message(STATUS "Using 64-bit integers.")
  set(GETARCH_FLAGS	"${GETARCH_FLAGS} -DUSE64BITINT")
endif ()

if (NOT DEFINED GEMM_MULTITHREAD_THRESHOLD)
  set(GEMM_MULTITHREAD_THRESHOLD 4)
endif ()
message(STATUS "GEMM multithread threshold set to ${GEMM_MULTITHREAD_THRESHOLD}.")
set(GETARCH_FLAGS	"${GETARCH_FLAGS} -DGEMM_MULTITHREAD_THRESHOLD=${GEMM_MULTITHREAD_THRESHOLD}")

if (NO_AVX)
  message(STATUS "Disabling Advanced Vector Extensions (AVX).")
  set(GETARCH_FLAGS "${GETARCH_FLAGS} -DNO_AVX")
endif ()

if (NO_AVX2)
  message(STATUS "Disabling Advanced Vector Extensions 2 (AVX2).")
  set(GETARCH_FLAGS "${GETARCH_FLAGS} -DNO_AVX2")
endif ()

if (NO_AVX512)
  message(STATUS "Disabling Advanced Vector Extensions 512 (AVX512).")
  set(GETARCH_FLAGS "${GETARCH_FLAGS} -DNO_AVX512")
endif ()

if (CMAKE_BUILD_TYPE STREQUAL "Debug")
  set(GETARCH_FLAGS "${GETARCH_FLAGS} ${CMAKE_C_FLAGS_DEBUG}")
endif ()

if (NOT DEFINED NO_PARALLEL_MAKE)
  set(NO_PARALLEL_MAKE 0)
endif ()
set(GETARCH_FLAGS	"${GETARCH_FLAGS} -DNO_PARALLEL_MAKE=${NO_PARALLEL_MAKE}")

if (CMAKE_C_COMPILER STREQUAL loongcc)
  set(GETARCH_FLAGS	"${GETARCH_FLAGS} -static")
endif ()

if (POWER)
  set(NO_WARMUP 1)
  set(HAVE_GAS 1)
  if (CMAKE_ASM_COMPILER_ID STREQUAL "GNU")
    set(HAVE_GAS 0)
  elseif (CMAKE_ASM_COMPILER_ID STREQUAL "Clang")
    set(CCOMMON_OPT "${CCOMMON_OPT} -fno-integrated-as")
    set(HAVE_GAS 0)
  endif ()
  set(GETARCH_FLAGS "${GETARCH_FLAGS} -DHAVE_GAS=${HAVE_GAS}")
endif ()

#if don't use Fortran, it will only compile CBLAS.
if (ONLY_CBLAS)
  set(NO_LAPACK 1)
else ()
  set(ONLY_CBLAS 0)
endif ()

# N.B. this is NUM_THREAD in Makefile.system which is probably a bug -hpa
if (NOT CMAKE_CROSSCOMPILING)
  if (NOT DEFINED NUM_CORES)
    include(ProcessorCount)
    ProcessorCount(NUM_CORES)
  endif()

endif()

if (NOT DEFINED NUM_PARALLEL)
  set(NUM_PARALLEL 1)
endif()

if (NOT DEFINED NUM_THREADS)
  if (DEFINED NUM_CORES AND NOT NUM_CORES EQUAL 0)
    # HT?
    set(NUM_THREADS ${NUM_CORES})
  else ()
    set(NUM_THREADS 0)
  endif ()
endif()

if (${NUM_THREADS} LESS 2)
  set(USE_THREAD 0)
elseif(NOT DEFINED USE_THREAD)
  set(USE_THREAD 1)
endif ()

if (USE_THREAD)
  message(STATUS "Multi-threading enabled with ${NUM_THREADS} threads.")
else()
  if (${USE_LOCKING})
    set(CCOMMON_OPT "${CCOMMON_OPT} -DUSE_LOCKING")
  endif ()
endif ()

if (C_LAPACK)
  if (${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
    set(CCOMMON_OPT "${CCOMMON_OPT} -Wno-error=incompatible-pointer-types")
  endif ()
endif ()

include("${PROJECT_SOURCE_DIR}/cmake/prebuild.cmake")
if (DEFINED TARGET)
  if (${TARGET} STREQUAL COOPERLAKE AND NOT NO_AVX512)
    if (${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
      execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
        if (${CMAKE_C_COMPILER_VERSION} VERSION_GREATER 10.09)
          set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=cooperlake")
        else()
          set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=skylake-avx512")
        endif()
    elseif (${CMAKE_C_COMPILER_ID} STREQUAL "Clang" OR ${CMAKE_C_COMPILER_ID} STREQUAL "AppleClang")
         if (${CMAKE_C_COMPILER_VERSION} VERSION_GREATER 8.99)
          set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=cooperlake -mllvm -exhaustive-register-search")
        else()
          set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=skylake-avx512 -mllvm -exhaustive-register-search")
        endif()
    endif()    
  endif()
  if (${TARGET} STREQUAL SAPPHIRERAPIDS AND NOT NO_AVX512)
    if (${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
      execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
        if (${CMAKE_C_COMPILER_VERSION} VERSION_GREATER 11.0)
          set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=sapphirerapids")
        else()
          set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=skylake-avx512")
        endif()
    elseif (${CMAKE_C_COMPILER_ID} STREQUAL "Clang" OR ${CMAKE_C_COMPILER_ID} STREQUAL "AppleClang")
         if (${CMAKE_C_COMPILER_VERSION} VERSION_GREATER 12.0)
          set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=sapphirerapids -mllvm -exhaustive-register-search")
        else()
          set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=skylake-avx512 -mllvm -exhaustive-register-search")
        endif()
    endif()    
  endif()
  if (${TARGET} STREQUAL SKYLAKEX AND NOT NO_AVX512)
    	  set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=skylake-avx512")
  	  if (${CMAKE_C_COMPILER_ID} STREQUAL "Clang" OR ${CMAKE_C_COMPILER_ID} STREQUAL "AppleClang")
	 	set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mllvm -exhaustive-register-search")
  	  endif()
  endif()
  
  if (((${TARGET} STREQUAL ZEN) AND HAVE_AVX512VL) AND NOT NO_AVX512)
    if (${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
      execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
        if (${CMAKE_C_COMPILER_VERSION} VERSION_GREATER 12.99)
          set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=znver4")
	else()
    	  set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=skylake-avx512")
        endif()
    elseif (${CMAKE_C_COMPILER_ID} STREQUAL "Clang" OR ${CMAKE_C_COMPILER_ID} STREQUAL "AppleClang")
         if (${CMAKE_C_COMPILER_VERSION} VERSION_GREATER 15.99)
          set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=znver4")
	else()
    	  set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -march=skylake-avx512")
        endif()
	set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mllvm -exhaustive-register-search")
    endif()
  endif()
  
  if ((${TARGET} STREQUAL HASWELL OR (${TARGET} STREQUAL ZEN AND NOT HAVE_AVX512VL)) AND NOT NO_AVX2)
    if (${CMAKE_C_COMPILER_ID} STREQUAL "GNU")
      execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
      if (${GCC_VERSION} VERSION_GREATER 4.7 OR ${GCC_VERSION} VERSION_EQUAL 4.7)
        set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mavx2")
      endif()
    elseif (${CMAKE_C_COMPILER_ID} STREQUAL "CLANG")
      set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mavx2 -mfma")
    endif()
  endif()
  if (DEFINED HAVE_AVX)
	if (NOT NO_AVX)
    set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mavx")
	endif()
  endif()
  if (DEFINED HAVE_AVX2)
	if (NOT NO_AVX2)
      	  set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mavx2")
	endif()
  endif()
  #  if (DEFINED HAVE_FMA3)
  #	if (NOT NO_AVX2)
  #  set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mfma")
  #	endif()
  #  endif()
    if (DEFINED HAVE_SSE)
    set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -msse")
  endif()
  if (DEFINED HAVE_SSE2)
    set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -msse2")
  endif()
  if (DEFINED HAVE_SSE3)
    set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -msse3")
  endif()
    if (DEFINED HAVE_SSSE3)
    set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -mssse3")
  endif()
    if (DEFINED HAVE_SSE4_1)
    set (KERNEL_DEFINITIONS "${KERNEL_DEFINITIONS} -msse4.1")
  endif()

  if (${TARGET} STREQUAL POWER10)
    execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
    if (${GCC_VERSION} VERSION_GREATER 10.2 OR ${GCC_VERSION} VERSION_EQUAL 10.2)
      set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -mcpu=power10 -mtune=power10 -mvsx -fno-fast-math")
    else ()
      message(FATAL_ERROR "Compiler GCC.${GCC_VERSION} does not support Power10.")
    endif()
  endif()
  if (${TARGET} STREQUAL POWER9)
    execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
    if (${GCC_VERSION} VERSION_GREATER 5.0 OR ${GCC_VERSION} VERSION_EQUAL 5.0)
      set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -mcpu=power9 -mtune=power9 -mvsx -fno-fast-math")
    else ()
      set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -mcpu=power8 -mtune=power8 -mvsx -fno-fast-math")
      message(WARNING "Compiler GCC.${GCC_VERSION} does not support fully Power9.")
    endif()
  endif()
  if (${TARGET} STREQUAL POWER8)
    set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -mcpu=power8 -mtune=power8 -mvsx -fno-fast-math")
  endif()

if (${TARGET} STREQUAL NEOVERSEV1)
    if (${CMAKE_C_COMPILER_ID} STREQUAL "PGI" AND NOT NO_SVE)
	set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -Msve_intrinsics -march=armv8.4-a+sve -mtune=neoverse-v1")
    else ()
    execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
    if (${GCC_VERSION} VERSION_GREATER 10.4 OR ${GCC_VERSION} VERSION_EQUAL 10.4)
      set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -march=armv8.4-a+sve -mtune=neoverse-v1")
    else ()
	    message(FATAL_ERROR "Compiler ${CMAKE_C_COMPILER} ${GCC_VERSION} does not support Neoverse V1.")
    endif()
    endif()
  endif()
  if (${TARGET} STREQUAL NEOVERSEN2)
    if (${CMAKE_C_COMPILER_ID} STREQUAL "PGI" AND NOT NO_SVE)
	set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -Msve-intrinsics -march=armv8.5-a+sve+sve2+bf16 -mtune=neoverse-n2")
    else ()
    execute_process(COMMAND ${CMAKE_C_COMPILER} -dumpversion OUTPUT_VARIABLE GCC_VERSION)
    if (${GCC_VERSION} VERSION_GREATER 10.4 OR ${GCC_VERSION} VERSION_EQUAL 10.4)
      set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -march=armv8.5-a+sve+sve2+bf16 -mtune=neoverse-n2")
    else ()
	    message(FATAL_ERROR "Compiler $${CMAKE_C_COMPILER} {GCC_VERSION} does not support Neoverse N2.")
    endif()
    endif()
  endif()
  if (${TARGET} STREQUAL ARMV8SVE)
    if (${CMAKE_C_COMPILER_ID} STREQUAL "PGI" AND NOT NO_SVE)
      set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -Msve-intrinsics -march=armv8.2-a+sve")
    else ()
      set (KERNEL_DEFINITIONS  "${KERNEL_DEFINITIONS} -march=armv8.2-a+sve")
    endif()
  endif()

endif()

if (DEFINED BINARY)
  message(STATUS "Compiling a ${BINARY}-bit binary.")
endif ()
if (NOT DEFINED NEED_PIC)
  set(NEED_PIC 1)
endif ()

# OS dependent settings
include("${PROJECT_SOURCE_DIR}/cmake/os.cmake")

# Architecture dependent settings
include("${PROJECT_SOURCE_DIR}/cmake/arch.cmake")

# C Compiler dependent settings
include("${PROJECT_SOURCE_DIR}/cmake/cc.cmake")

if (INTERFACE64)
  set(SUFFIX64 64)
  set(SUFFIX64_UNDERSCORE _64)
endif()

if (NOT NOFORTRAN)
  # Fortran Compiler dependent settings
  include("${PROJECT_SOURCE_DIR}/cmake/fc.cmake")
else ()
  if (NOT XXXX)
    set(C_LAPACK 1)
    if (INTERFACE64)
      set (CCOMMON_OPT "${CCOMMON_OPT} -DLAPACK_ILP64")
    endif ()
    set(TIMER "NONE")
  else ()
    set (NO_LAPACK 1)
  endif ()
endif ()

if (BINARY64)
  if (INTERFACE64)
    # CCOMMON_OPT += -DUSE64BITINT
  endif ()
endif ()

if(EMBEDDED)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DOS_EMBEDDED")
  set(CCOMMON_OPT "${CCOMMON_OPT} -mthumb -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16")
endif()

if (NEED_PIC)
  if (${CMAKE_C_COMPILER} STREQUAL "IBM")
    set(CCOMMON_OPT "${CCOMMON_OPT} -qpic=large")
  else ()
    set(CCOMMON_OPT "${CCOMMON_OPT} -fPIC")
  endif ()

  if (NOT NOFORTRAN)
    if (${F_COMPILER} STREQUAL "SUN")
      set(FCOMMON_OPT "${FCOMMON_OPT} -pic")
    else ()
      set(FCOMMON_OPT "${FCOMMON_OPT} -fPIC")
    endif ()
  endif()
endif ()

if (X86_64 OR ${CORE} STREQUAL POWER10)
  set(SMALL_MATRIX_OPT TRUE)
endif ()
if (SMALL_MATRIX_OPT)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DSMALL_MATRIX_OPT")
endif ()

if (DYNAMIC_ARCH)
  if (X86 OR X86_64 OR ARM64 OR POWER)
    set(CCOMMON_OPT "${CCOMMON_OPT} -DDYNAMIC_ARCH")
    if (DYNAMIC_OLDER)
      set(CCOMMON_OPT "${CCOMMON_OPT} -DDYNAMIC_OLDER")
    endif ()
  else ()
    unset (DYNAMIC_ARCH)
    message (STATUS "DYNAMIC_ARCH is not supported on the target architecture, removing")
  endif ()
endif ()

if (DYNAMIC_LIST)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DDYNAMIC_LIST")
  foreach(DCORE ${DYNAMIC_LIST})
    set(CCOMMON_OPT "${CCOMMON_OPT} -DDYN_${DCORE}")
  endforeach ()
endif ()

if (NO_LAPACK)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DNO_LAPACK")
  #Disable LAPACK C interface
  set(NO_LAPACKE 1)
endif ()

if (NO_LAPACKE)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DNO_LAPACKE")
endif ()

if (NO_AVX)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DNO_AVX")
endif ()

if (X86)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DNO_AVX")
endif ()

if (NO_AVX2)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DNO_AVX2")
endif ()

if (NO_AVX512)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DNO_AVX512")
endif ()

if (USE_THREAD)
  # USE_SIMPLE_THREADED_LEVEL3 = 1
  # NO_AFFINITY = 1
  set(CCOMMON_OPT "${CCOMMON_OPT} -DSMP_SERVER")

  if (MIPS64)
    if (NOT ${CORE} STREQUAL "LOONGSON3B")
      set(USE_SIMPLE_THREADED_LEVEL3 1)
    endif ()
  endif ()

  if (BIGNUMA)
    set(CCOMMON_OPT "${CCOMMON_OPT} -DBIGNUMA")
  endif ()
endif ()

if (NO_WARMUP)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DNO_WARMUP")
endif ()

if (CONSISTENT_FPCSR)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DCONSISTENT_FPCSR")
endif ()

if (USE_TLS)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DUSE_TLS")
endif ()

# Only for development
# set(CCOMMON_OPT "${CCOMMON_OPT} -DPARAMTEST")
# set(CCOMMON_OPT "${CCOMMON_OPT} -DPREFETCHTEST")
# set(CCOMMON_OPT "${CCOMMON_OPT} -DNO_SWITCHING")
# set(USE_PAPI 1)

if (USE_PAPI)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DUSE_PAPI")
  set(EXTRALIB "${EXTRALIB} -lpapi -lperfctr")
endif ()

if (DYNAMIC_THREADS)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DDYNAMIC_THREADS")
endif ()

set(CCOMMON_OPT "${CCOMMON_OPT} -DMAX_CPU_NUMBER=${NUM_THREADS}")

set(CCOMMON_OPT "${CCOMMON_OPT} -DMAX_PARALLEL_NUMBER=${NUM_PARALLEL}")

if (BUFFERSIZE)
set(CCOMMON_OPT "${CCOMMON_OPT} -DBUFFERSIZE=${BUFFERSIZE}")
endif ()

if (USE_SIMPLE_THREADED_LEVEL3)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DUSE_SIMPLE_THREADED_LEVEL3")
endif ()

if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
if (DEFINED MAX_STACK_ALLOC)
if (NOT ${MAX_STACK_ALLOC} EQUAL 0)
set(CCOMMON_OPT "${CCOMMON_OPT} -DMAX_STACK_ALLOC=${MAX_STACK_ALLOC}")
endif ()
else ()
set(CCOMMON_OPT "${CCOMMON_OPT} -DMAX_STACK_ALLOC=2048")
endif ()
endif ()
if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
if (DEFINED BLAS3_MEM_ALLOC_THRESHOLD)
if (NOT ${BLAS3_MEM_ALLOC_THRESHOLD} EQUAL 32)
set(CCOMMON_OPT "${CCOMMON_OPT} -DBLAS3_MEM_ALLOC_THRESHOLD=${BLAS3_MEM_ALLOC_THRESHOLD}")
endif()
endif()
endif()
  
set(LIBPREFIX "lib${LIBNAMEPREFIX}openblas")

if (DEFINED LIBNAMESUFFIX)
  set(LIBPREFIX "${LIBNAMEPREFIX}_${LIBNAMESUFFIX}")
endif ()

if (NOT DEFINED SYMBOLPREFIX)
  set(SYMBOLPREFIX "")
endif ()

if (NOT DEFINED SYMBOLSUFFIX)
  set(SYMBOLSUFFIX "")
endif ()

set(KERNELDIR	"${PROJECT_SOURCE_DIR}/kernel/${ARCH}")

# TODO: need to convert these Makefiles
# include ${PROJECT_SOURCE_DIR}/cmake/${ARCH}.cmake

if (${CORE} STREQUAL "PPC440")
  set(CCOMMON_OPT "${CCOMMON_OPT} -DALLOC_QALLOC")
endif ()

if (${CORE} STREQUAL "PPC440FP2")
  set(STATIC_ALLOCATION 1)
endif ()

if (NOT ${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
  set(NO_AFFINITY 1)
endif ()

if (NOT X86_64 AND NOT X86 AND NOT ${CORE} STREQUAL "LOONGSON3B")
  set(NO_AFFINITY 1)
endif ()

if (NO_AFFINITY)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DNO_AFFINITY")
endif ()

if (FUNCTION_PROFILE)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DFUNCTION_PROFILE")
endif ()

if (HUGETLB_ALLOCATION)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DALLOC_HUGETLB")
endif ()

if (DEFINED HUGETLBFILE_ALLOCATION)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DALLOC_HUGETLBFILE -DHUGETLB_FILE_NAME=${HUGETLBFILE_ALLOCATION})")
endif ()

if (STATIC_ALLOCATION)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DALLOC_STATIC")
endif ()

if (DEVICEDRIVER_ALLOCATION)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DALLOC_DEVICEDRIVER -DDEVICEDRIVER_NAME=\"/dev/mapper\"")
endif ()

if (MIXED_MEMORY_ALLOCATION)
  set(CCOMMON_OPT "${CCOMMON_OPT} -DMIXED_MEMORY_ALLOCATION")
endif ()

set(CCOMMON_OPT "${CCOMMON_OPT} -DVERSION=\"\\\"${OpenBLAS_VERSION}\\\"\"")

set(REVISION "-r${OpenBLAS_VERSION}")
set(MAJOR_VERSION ${OpenBLAS_MAJOR_VERSION})

set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${CCOMMON_OPT}")

if (NOT BUILD_SINGLE AND NOT BUILD_DOUBLE AND NOT BUILD_COMPLEX AND NOT BUILD_COMPLEX16)
	set (BUILD_SINGLE ON)
	set (BUILD_DOUBLE ON)
	set (BUILD_COMPLEX ON)
	set (BUILD_COMPLEX16 ON)
endif()
if (BUILD_SINGLE)
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DBUILD_SINGLE")
endif()
if (BUILD_DOUBLE)
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DBUILD_DOUBLE")
endif()
if (BUILD_COMPLEX)
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DBUILD_COMPLEX")
endif()
if (BUILD_COMPLEX16)
	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DBUILD_COMPLEX16")
endif()
if (BUILD_BFLOAT16)
       set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DBUILD_BFLOAT16")
endif()
if(NOT MSVC)
set(CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS} ${CCOMMON_OPT}")
endif()
# TODO: not sure what PFLAGS is -hpa
set(PFLAGS "${PFLAGS} ${CCOMMON_OPT} -I${TOPDIR} -DPROFILE ${COMMON_PROF}")

set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} ${FCOMMON_OPT}")
# TODO: not sure what FPFLAGS is -hpa
set(FPFLAGS "${FPFLAGS} ${FCOMMON_OPT} ${COMMON_PROF}")

#For LAPACK Fortran codes.
set(LAPACK_FFLAGS "${LAPACK_FFLAGS} ${CMAKE_Fortran_FLAGS}")
set(LAPACK_FPFLAGS "${LAPACK_FPFLAGS} ${FPFLAGS}")

#Disable -fopenmp for LAPACK Fortran codes on Windows.
if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
  set(FILTER_FLAGS "-fopenmp;-mp;-openmp;-xopenmp=parallel")
  foreach (FILTER_FLAG ${FILTER_FLAGS})
    string(REPLACE ${FILTER_FLAG} "" LAPACK_FFLAGS ${LAPACK_FFLAGS})
    string(REPLACE ${FILTER_FLAG} "" LAPACK_FPFLAGS ${LAPACK_FPFLAGS})
  endforeach ()
endif ()

if (CMAKE_Fortran_COMPILER)
if (${F_COMPILER} STREQUAL "NAG" OR ${F_COMPILER} STREQUAL "CRAY" OR CMAKE_Fortran_COMPILER_ID MATCHES "LLVMFlang.*")
  set(FILTER_FLAGS "-msse3;-mssse3;-msse4.1;-mavx;-mavx2,-mskylake-avx512")
  if (CMAKE_Fortran_COMPILER_ID MATCHES "LLVMFlang.*")
message(STATUS "removing fortran flags")
    set(FILTER_FLAGS "${FILTER_FLAGS};-m32;-m64")
  endif ()
  foreach (FILTER_FLAG ${FILTER_FLAGS})
    string(REPLACE ${FILTER_FLAG} "" LAPACK_FFLAGS ${LAPACK_FFLAGS})
    string(REPLACE ${FILTER_FLAG} "" LAPACK_FPFLAGS ${LAPACK_FPFLAGS})
  endforeach ()
endif ()
endif ()

if ("${F_COMPILER}" STREQUAL "GFORTRAN")
  # lapack-netlib is rife with uninitialized warnings -hpa
  set(LAPACK_FFLAGS "${LAPACK_FFLAGS} -Wno-maybe-uninitialized")
endif ()

set(LAPACK_CFLAGS "${CMAKE_C_CFLAGS} -DHAVE_LAPACK_CONFIG_H")
if (INTERFACE64)
  set(LAPACK_CFLAGS "${LAPACK_CFLAGS} -DLAPACK_ILP64")
endif ()

if (${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
  set(LAPACK_CFLAGS "${LAPACK_CFLAGS} -DOPENBLAS_OS_WINDOWS")
endif ()

if (${CMAKE_C_COMPILER} STREQUAL "LSB" OR ${CMAKE_SYSTEM_NAME} STREQUAL "Windows")
  set(LAPACK_CFLAGS "${LAPACK_CFLAGS} -DLAPACK_COMPLEX_STRUCTURE")
endif ()

if ("${CMAKE_BUILD_TYPE}" STREQUAL "Release")
if ("${F_COMPILER}" STREQUAL "FLANG")
if (${CMAKE_Fortran_COMPILER_VERSION} VERSION_LESS_EQUAL 3)
  set(CMAKE_Fortran_FLAGS_RELEASE "${CMAKE_Fortran_FLAGS_RELEASE} -fno-unroll-loops")
endif ()
endif ()
endif ()

if (NOT DEFINED SUFFIX)
  set(SUFFIX o)
endif ()

if (NOT DEFINED PSUFFIX)
  set(PSUFFIX po)
endif ()

if (NOT DEFINED LIBSUFFIX)
  set(LIBSUFFIX a)
endif ()

if (DYNAMIC_ARCH)
  if (USE_THREAD)
    set(LIBNAME "${LIBPREFIX}p${REVISION}.${LIBSUFFIX}")
    set(LIBNAME_P	"${LIBPREFIX}p${REVISION}_p.${LIBSUFFIX}")
  else ()
    set(LIBNAME "${LIBPREFIX}${REVISION}.${LIBSUFFIX}")
    set(LIBNAME_P	"${LIBPREFIX}${REVISION}_p.${LIBSUFFIX}")
  endif ()
else ()
  if (USE_THREAD)
    set(LIBNAME "${LIBPREFIX}_${LIBCORE}p${REVISION}.${LIBSUFFIX}")
    set(LIBNAME_P	"${LIBPREFIX}_${LIBCORE}p${REVISION}_p.${LIBSUFFIX}")
  else ()
    set(LIBNAME	"${LIBPREFIX}_${LIBCORE}${REVISION}.${LIBSUFFIX}")
    set(LIBNAME_P	"${LIBPREFIX}_${LIBCORE}${REVISION}_p.${LIBSUFFIX}")
  endif ()
endif ()

if (DEFINED FIXED_LIBNAME)
  set (LIBNAME "${LIBPREFIX}.${LIBSUFFIX}")
  set (LIBNAME "${LIBPREFIX}_p.${LIBSUFFIX}")
endif()

set(LIBDLLNAME "${LIBPREFIX}.dll")
set(LIBSONAME "${LIBNAME}.${LIBSUFFIX}.so")
set(LIBDYNNAME "${LIBNAME}.${LIBSUFFIX}.dylib")
set(LIBDEFNAME "${LIBNAME}.${LIBSUFFIX}.def")
set(LIBEXPNAME "${LIBNAME}.${LIBSUFFIX}.exp")
set(LIBZIPNAME "${LIBNAME}.${LIBSUFFIX}.zip")

set(LIBS "${PROJECT_SOURCE_DIR}/${LIBNAME}")
set(LIBS_P "${PROJECT_SOURCE_DIR}/${LIBNAME_P}")


set(LIB_COMPONENTS BLAS)
if (NOT NO_CBLAS)
  set(LIB_COMPONENTS "${LIB_COMPONENTS} CBLAS")
endif ()

if (NOT NO_LAPACK)
  set(LIB_COMPONENTS "${LIB_COMPONENTS} LAPACK")
  if (NOT NO_LAPACKE)
    set(LIB_COMPONENTS "${LIB_COMPONENTS} LAPACKE")
  endif ()
  if (BUILD_RELAPACK)
    set(LIB_COMPONENTS "${LIB_COMPONENTS} ReLAPACK")
  endif ()
endif ()

if (ONLY_CBLAS)
  set(LIB_COMPONENTS CBLAS)
endif ()


# For GEMM3M
set(USE_GEMM3M 0)

if (DEFINED ARCH)
  if (X86 OR X86_64 OR ${ARCH} STREQUAL "ia64" OR MIPS64)
    set(USE_GEMM3M 1)
  endif ()

  if (${CORE} STREQUAL "generic")
    set(USE_GEMM3M 0)
  endif ()
endif ()


#export OSNAME
#export ARCH
#export CORE
#export LIBCORE
#export PGCPATH
#export CONFIG
#export CC
#export FC
#export BU
#export FU
#export NEED2UNDERSCORES
#export USE_THREAD
#export NUM_THREADS
#export NUM_CORES
#export SMP
#export MAKEFILE_RULE
#export NEED_PIC
#export BINARY
#export BINARY32
#export BINARY64
#export F_COMPILER
#export C_COMPILER
#export USE_OPENMP
#export CROSS
#export CROSS_SUFFIX
#export NOFORTRAN
#export NO_FBLAS
#export EXTRALIB
#export CEXTRALIB
#export FEXTRALIB
#export HAVE_SSE
#export HAVE_SSE2
#export HAVE_SSE3
#export HAVE_SSSE3
#export HAVE_SSE4_1
#export HAVE_SSE4_2
#export HAVE_SSE4A
#export HAVE_SSE5
#export HAVE_AVX
#export HAVE_VFP
#export HAVE_VFPV3
#export HAVE_VFPV4
#export HAVE_NEON
#export KERNELDIR
#export FUNCTION_PROFILE
#export TARGET_CORE
#
#export SBGEMM_UNROLL_M
#export SBGEMM_UNROLL_N
#export SGEMM_UNROLL_M
#export SGEMM_UNROLL_N
#export DGEMM_UNROLL_M
#export DGEMM_UNROLL_N
#export QGEMM_UNROLL_M
#export QGEMM_UNROLL_N
#export CGEMM_UNROLL_M
#export CGEMM_UNROLL_N
#export ZGEMM_UNROLL_M
#export ZGEMM_UNROLL_N
#export XGEMM_UNROLL_M
#export XGEMM_UNROLL_N
#export CGEMM3M_UNROLL_M
#export CGEMM3M_UNROLL_N
#export ZGEMM3M_UNROLL_M
#export ZGEMM3M_UNROLL_N
#export XGEMM3M_UNROLL_M
#export XGEMM3M_UNROLL_N


#if (USE_CUDA)
#  export CUDADIR
#  export CUCC
#  export CUFLAGS
#  export CULIB
#endif