# Subclasses disutils.command.build_ext,
# replacing it with a Pyrex version that compiles pyx->c
# before calling the original build_ext command.
# July 2002, Graham Fawcett
# Modified by Darrell Gallion <dgallion1@yahoo.com>
# to allow inclusion of .c files along with .pyx files.
# Pyrex is (c) Greg Ewing.
import distutils.command.build_ext
#import Pyrex.Compiler.Main
from Pyrex.Compiler.Main import CompilationOptions,default_options,compile
from Pyrex.Compiler.Errors import PyrexError
from distutils.dep_util import newer
import os
import sys
def replace_suffix(path, new_suffix):
return os.path.splitext(path)[0] + new_suffix
class build_ext (distutils.command.build_ext.build_ext):
description = "compile Pyrex scripts, then build C/C++ extensions (compile/link to build directory)"
def finalize_options (self):
distutils.command.build_ext.build_ext.finalize_options(self)
# The following hack should no longer be needed.
if 0:
# compiling with mingw32 gets an "initializer not a constant" error
# doesn't appear to happen with MSVC!
# so if we are compiling with mingw32,
# switch to C++ mode, to avoid the problem
if self.compiler == 'mingw32':
self.swig_cpp = 1
def swig_sources (self, sources, extension = None):
if not self.extensions:
return
# collect the names of the source (.pyx) files
pyx_sources = []
pyx_sources = [source for source in sources if source.endswith('.pyx')]
other_sources = [source for source in sources if not source.endswith('.pyx')]
#suffix = self.swig_cpp and '.cpp' or '.c'
suffix = '.c'
for pyx in pyx_sources:
# should I raise an exception if it doesn't exist?
if os.path.exists(pyx):
source = pyx
target = replace_suffix(source, suffix)
if newer(source, target) or self.force:
self.pyrex_compile(source)
return [replace_suffix(src, suffix) for src in pyx_sources] + other_sources
def pyrex_compile(self, source):
options = CompilationOptions(default_options,
include_path = self.include_dirs)
result = compile(source, options)
if result.num_errors <> 0:
sys.exit(1)
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