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import os
import sys

from bento.commands import hooks
import waflib

@hooks.post_configure
def configure(context):
    conf = context.waf_context

    conf.env.USE_WINCRYPT = False
    if conf.check_declaration("_WIN32", mandatory=False):
        conf.env.USE_WINCRYPT = True

    conf.env.NEEDS_MINGW32_WORKAROUND = False
    if sys.platform == "win32" and conf.check_declaration("__GNUC__", mandatory=False):
        conf.env.NEEDS_MINGW32_WORKAROUND = True

@hooks.pre_build
def build(context):
    bld = context.waf_context

    if bld.env.NEEDS_MINGW32_WORKAROUND:
        raise NotImplementedError("Check for mingw time workaround stuff")

    def builder(extension):
        includes = ["../core/include", "../core/include/numpy", "../core",
                    "../core/src/private"]
        kw = {}
        if bld.env.USE_WINCRYPT:
            kw["lib"] = "ADVAPI32"
        return context.default_builder(extension, includes=includes, **kw)
    context.register_builder("mtrand", builder)