在* NIX平台上构建源代码的一种常用方法是使用configure
脚本。在引擎盖下,configure尝试构建一堆测试程序,以确定您可以访问哪些库。然后它生成一个头文件,它包含在项目中,有条件地定义了一堆宏,以便程序员可以提供替代或构建库/程序的精简版本,如果特定的"依赖"不见了。使用numpy.distutils
是否有任何功能相同的东西?
例如,这是我的setup.py
:
from numpy.distutils.misc_util import Configuration
def configuration(parent_package='',top_path=None):
config = Configuration('pyggcm',parent_package,top_path)
#TODO: Currently, I have some macros to conditionally build the seek-code
#Unfortunately, that's not the best solution (by far). Perhaps if we
#changed to using stream access it would work better, without the need
#for these silly macros.
config.add_extension('_fortfile',sources=['_fortfile/_fortfile.F90'],
define_macros=[
('FSEEKABLE',1), #compiler provides fseek and ftell
('HAVE_STREAM',1) #compiler provides access='stream' for opening files. (f2003 standard)
])
config.add_extension('jrrle',sources=['jrrle/jrrle.f90'])
config.add_scripts(['scripts/ggcm_timehist',
'scripts/ggcm_plasmasheet',
'scripts/ggcm_plot'])
return config
from numpy.distutils.core import setup
setup(configuration=configuration)
这是无条件构建FSEEKABLE
代码,如果用户Fortran编译器不支持,则需要手动编辑(宏包裹fseek
和ftell
GNU内在功能)。有没有办法确定Fortran编译器是否提供这些内部函数?
答案 0 :(得分:1)
试试这个:
import os
import shutil
import tempfile
from distutils.ccompiler import new_compiler
def hasfunction(cc, funcname, include=None, extra_postargs=None):
tmpdir = tempfile.mkdtemp(prefix='hasfunction-')
devnull = oldstderr = None
try:
try:
fname = os.path.join(tmpdir, 'funcname.c')
f = open(fname, 'w')
if include is not None:
f.write('#include %s\n' % include)
f.write('int main(void) {\n')
f.write(' %s;\n' % funcname)
f.write('}\n')
f.close()
devnull = open(os.devnull, 'w')
oldstderr = os.dup(sys.stderr.fileno())
os.dup2(devnull.fileno(), sys.stderr.fileno())
objects = cc.compile([fname], output_dir=tmpdir,
extra_postargs=extra_postargs)
cc.link_executable(objects, os.path.join(tmpdir, 'a.out'))
except Exception as e:
return False
return True
finally:
if oldstderr is not None:
os.dup2(oldstderr, sys.stderr.fileno())
if devnull is not None:
devnull.close()
shutil.rmtree(tmpdir)
示例:
def detect_sse3():
"Does this compiler support SSE3 intrinsics?"
compiler = new_compiler()
return hasfunction(compiler, '__m128 v; _mm_hadd_ps(v,v)',
include='<pmmintrin.h>',
extra_postargs=['-msse3'])
答案 1 :(得分:0)
将代码片段生成为文件&amp;尝试编译它检查错误代码是正常的方法,应该很好地工作 - 但是AFAIK没有人已经为你做了这个作为distutils的一部分。我怀疑其中一个,可能是基于python的构建工具,可能会支持这个。我认为你最好的选择是GNU autoconfigure。