# Last Change: Fri Oct 03 04:00 PM 2008 J # vim:syntax=python import os import sys from os.path import join as pjoin, basename as pbasename, dirname as pdirname from copy import deepcopy from numscons import get_pythonlib_dir from numscons import GetNumpyEnvironment from numscons import CheckCBLAS from numscons import write_info from scons_support import CheckBrokenMathlib, define_no_smp, \ check_mlib, check_mlibs, is_npy_no_signal from scons_support import array_api_gen_bld, ufunc_api_gen_bld, template_bld, \ umath_bld env = GetNumpyEnvironment(ARGUMENTS) env.Append(CPPPATH = env["PYEXTCPPPATH"]) if os.name == 'nt': # NT needs the pythonlib to run any code importing Python.h, including # simple code using only typedef and so on, so we need it for configuration # checks env.AppendUnique(LIBPATH = [get_pythonlib_dir()]) #======================= # Starting Configuration #======================= config = env.NumpyConfigure(custom_tests = {'CheckBrokenMathlib' : CheckBrokenMathlib, 'CheckCBLAS' : CheckCBLAS}, config_h = pjoin('config.h')) # numpyconfig_sym will keep the values of some configuration variables, the one # needed for the public numpy API. # Convention: list of tuples (definition, value). value: # - 0: #undef definition # - 1: #define definition # - string: #define definition value numpyconfig_sym = [] #--------------- # Checking Types #--------------- if not config.CheckHeader("Python.h"): errmsg = [] for line in config.GetLastError(): errmsg.append("%s " % line) print """ Error: Python.h header cannot be compiled (or cannot be found). On linux, check that you have python-dev/python-devel packages. On windows, check that you have he platform SDK. You may also use unsupported cflags. Configuration error log says: \n\n%s""" % ''.join(errmsg) Exit(-1) def check_type(type, include = None): st = config.CheckTypeSize(type, includes = include) type = type.replace(' ', '_') if st: numpyconfig_sym.append(('SIZEOF_%s' % type.upper(), '%d' % st)) else: numpyconfig_sym.append(('SIZEOF_%s' % type.upper(), 0)) for type in ('short', 'int', 'long', 'float', 'double', 'long double'): check_type(type) for type in ('Py_intptr_t',): check_type(type, include = "#include \n") # We check declaration AND type because that's how distutils does it. if config.CheckDeclaration('PY_LONG_LONG', includes = '#include \n'): st = config.CheckTypeSize('PY_LONG_LONG', includes = '#include \n') assert not st == 0 numpyconfig_sym.append(('DEFINE_NPY_SIZEOF_LONGLONG', '#define NPY_SIZEOF_LONGLONG %d' % st)) numpyconfig_sym.append(('DEFINE_NPY_SIZEOF_PY_LONG_LONG', '#define NPY_SIZEOF_PY_LONG_LONG %d' % st)) else: numpyconfig_sym.append(('DEFINE_NPY_SIZEOF_LONGLONG', '')) numpyconfig_sym.append(('DEFINE_NPY_SIZEOF_PY_LONG_LONG', '')) if not config.CheckDeclaration('CHAR_BIT', includes= '#include \n'): raise RuntimeError(\ """Config wo CHAR_BIT is not supported with scons: please contact the maintainer (cdavid)""") #---------------------- # Checking signal stuff #---------------------- if is_npy_no_signal(): numpyconfig_sym.append(('DEFINE_NPY_NO_SIGNAL', '#define NPY_NO_SIGNAL\n')) config.Define('__NPY_PRIVATE_NO_SIGNAL', comment = "define to 1 to disable SMP support ") else: numpyconfig_sym.append(('DEFINE_NPY_NO_SIGNAL', '')) #--------------------- # Checking SMP option #--------------------- if define_no_smp(): nosmp = 1 else: nosmp = 0 numpyconfig_sym.append(('NPY_NO_SMP', nosmp)) #---------------------------------------------- # Check whether we can use C99 printing formats #---------------------------------------------- if config.CheckDeclaration(('PRIdPTR'), includes = '#include '): usec99 = 1 else: usec99 = 0 numpyconfig_sym.append(('USE_C99_FORMATS', usec99)) #---------------------- # Checking the mathlib #---------------------- mlibs = [[], ['m'], ['cpml']] mathlib = os.environ.get('MATHLIB') if mathlib: mlibs.insert(0, mathlib) mlib = check_mlibs(config, mlibs) # XXX: this is ugly: mathlib has nothing to do in a public header file numpyconfig_sym.append(('MATHLIB', ','.join(mlib))) #---------------------------------- # Checking the math funcs available #---------------------------------- # Function to check: mfuncs = ('expl', 'expf', 'log1p', 'expm1', 'asinh', 'atanhf', 'atanhl', 'isnan', 'isinf', 'rint', 'trunc') # Set value to 1 for each defined function (in math lib) mfuncs_defined = dict([(f, 0) for f in mfuncs]) # Check for mandatory funcs: we barf if a single one of those is not there mandatory_funcs = ["sin", "cos", "tan", "sinh", "cosh", "tanh", "fabs", "floor", "ceil", "sqrt", "log10", "log", "exp", "asin", "acos", "atan", "fmod", 'modf', 'frexp', 'ldexp'] if not config.CheckFuncsAtOnce(mandatory_funcs): raise SystemError("One of the required function to build numpy is not" " available (the list is %s)." % str(mandatory_funcs)) # Standard functions which may not be available and for which we have a # replacement implementation # def check_funcs(funcs): # Use check_funcs_once first, and if it does not work, test func per # func. Return success only if all the functions are available st = config.CheckFuncsAtOnce(funcs) if not st: # Global check failed, check func per func for f in funcs: st = config.CheckFunc(f, language = 'C') # XXX: we do not test for hypot because python checks for it (HAVE_HYPOT in # python.h... I wish they would clean their public headers someday) optional_stdfuncs = ["expm1", "log1p", "acosh", "asinh", "atanh", "rint", "trunc"] check_funcs(optional_stdfuncs) # C99 functions: float and long double versions c99_funcs = ["sin", "cos", "tan", "sinh", "cosh", "tanh", "fabs", "floor", "ceil", "rint", "trunc", "sqrt", "log10", "log", "exp", "expm1", "asin", "acos", "atan", "asinh", "acosh", "atanh", "hypot", "atan2", "pow", "fmod", "modf", 'frexp', 'ldexp'] for prec in ['l', 'f']: fns = [f + prec for f in c99_funcs] check_funcs(fns) # Normally, isnan and isinf are macro (C99), but some platforms only have # func, or both func and macro version. Check for macro only, and define # replacement ones if not found. # Note: including Python.h is necessary because it modifies some math.h # definitions for f in ["isnan", "isinf", "signbit", "isfinite"]: includes = """\ #include #include """ config.CheckDeclaration(f, includes=includes) #------------------------------------------------------- # Define the function PyOS_ascii_strod if not available #------------------------------------------------------- if not config.CheckDeclaration('PyOS_ascii_strtod', includes = "#include "): if config.CheckFunc('strtod'): config.Define('PyOS_ascii_strtod', 'strtod', "Define to a function to use as a replacement for "\ "PyOS_ascii_strtod if not available in python header") #------------------------------------ # DISTUTILS Hack on AMD64 on windows #------------------------------------ # XXX: this is ugly if sys.platform=='win32' or os.name=='nt': from distutils.msvccompiler import get_build_architecture a = get_build_architecture() print 'BUILD_ARCHITECTURE: %r, os.name=%r, sys.platform=%r' % \ (a, os.name, sys.platform) if a == 'AMD64': distutils_use_sdk = 1 config.Define('DISTUTILS_USE_SDK', distutils_use_sdk, "define to 1 to disable SMP support ") #-------------- # Checking Blas #-------------- if config.CheckCBLAS(): build_blasdot = 1 else: build_blasdot = 0 config.Finish() write_info(env) #========== # Build #========== #--------------------------------------- # Generate the public configuration file #--------------------------------------- config_dict = {} # XXX: this is ugly, make the API for config.h and numpyconfig.h similar for key, value in numpyconfig_sym: config_dict['@%s@' % key] = str(value) env['SUBST_DICT'] = config_dict include_dir = 'include/numpy' env.SubstInFile(pjoin(include_dir, 'numpyconfig.h'), pjoin(include_dir, 'numpyconfig.h.in')) env['CONFIG_H_GEN'] = numpyconfig_sym #--------------------------- # Builder for generated code #--------------------------- env.Append(BUILDERS = {'GenerateMultiarrayApi' : array_api_gen_bld, 'GenerateUfuncApi' : ufunc_api_gen_bld, 'GenerateFromTemplate' : template_bld, 'GenerateUmath' : umath_bld}) #------------------------ # Generate generated code #------------------------ scalartypes_src = env.GenerateFromTemplate(pjoin('src', 'scalartypes.inc.src')) math_c99_src = env.GenerateFromTemplate(pjoin('src', 'math_c99.inc.src')) arraytypes_src = env.GenerateFromTemplate(pjoin('src', 'arraytypes.inc.src')) sortmodule_src = env.GenerateFromTemplate(pjoin('src', '_sortmodule.c.src')) umathmodule_src = env.GenerateFromTemplate(pjoin('src', 'umathmodule.c.src')) scalarmathmodule_src = env.GenerateFromTemplate( pjoin('src', 'scalarmathmodule.c.src')) umath = env.GenerateUmath('__umath_generated', pjoin('code_generators', 'generate_umath.py')) multiarray_api = env.GenerateMultiarrayApi('multiarray_api', [ pjoin('code_generators', 'numpy_api_order.txt')]) ufunc_api = env.GenerateUfuncApi('ufunc_api', pjoin('code_generators', 'ufunc_api_order.txt')) env.Prepend(CPPPATH = ['include', '.']) #----------------- # Build multiarray #----------------- multiarray_src = [pjoin('src', 'multiarraymodule.c')] multiarray = env.DistutilsPythonExtension('multiarray', source = multiarray_src) #------------------ # Build sort module #------------------ sort = env.DistutilsPythonExtension('_sort', source = sortmodule_src) #------------------- # Build umath module #------------------- umathmodule = env.DistutilsPythonExtension('umath', source = umathmodule_src) #------------------------ # Build scalarmath module #------------------------ scalarmathmodule = env.DistutilsPythonExtension('scalarmath', source = scalarmathmodule_src) #---------------------- # Build _dotblas module #---------------------- if build_blasdot: dotblas_src = [pjoin('blasdot', i) for i in ['_dotblas.c']] # because _dotblas does #include CBLAS_HEADER instead of #include # "cblas.h", scons does not detect the dependency # XXX: PythonExtension builder does not take the Depends on extension into # account for some reason, so we first build the object, with forced # dependency, and then builds the extension. This is more likely a bug in # our PythonExtension builder, but I cannot see how to solve it. dotblas_o = env.PythonObject('_dotblas', source = dotblas_src) env.Depends(dotblas_o, pjoin("blasdot", "cblas.h")) dotblas = env.DistutilsPythonExtension('_dotblas', dotblas_o)