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import os
import cffi
ffi = cffi.FFI()
with open("libmpi.c.in") as f:
ffi.set_source("libmpi", f.read())
with open("libmpi.h") as f:
ffi.cdef(f.read())
class mpicompiler(object):
from cffi import ffiplatform
def __init__(self, cc, ld=None):
self.cc = cc
self.ld = ld if ld else cc
self.ffi_compile = self.ffiplatform.compile
def __enter__(self):
self.ffiplatform.compile = self.compile
def __exit__(self, *args):
self.ffiplatform.compile = self.ffi_compile
def configure(self, compiler):
from distutils.util import split_quoted
from distutils.spawn import find_executable
def fix_command(command, cmd):
if not cmd: return
cmd = split_quoted(cmd)
exe = find_executable(cmd[0])
if not exe: return
command[0] = exe
command += cmd[1:]
fix_command(compiler.compiler_so, self.cc)
fix_command(compiler.linker_so, self.ld)
def compile(self, *args, **kargs):
from distutils.command import build_ext
customize_compiler_orig = build_ext.customize_compiler
def customize_compiler(compiler):
customize_compiler_orig(compiler)
self.configure(compiler)
build_ext.customize_compiler = customize_compiler
try:
return self.ffi_compile(*args, **kargs)
finally:
build_ext.customize_compiler = customize_compiler_orig
if __name__ == '__main__':
cc = os.environ.get('MPICC', 'mpicc')
ld = os.environ.get('MPILD')
with mpicompiler(cc, ld):
ffi.compile()
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