61 lines
1.9 KiB
Python
61 lines
1.9 KiB
Python
|
from __future__ import division, absolute_import, print_function
|
||
|
|
|
||
|
|
import os
|
||
|
|
from distutils.msvccompiler import MSVCCompiler as _MSVCCompiler
|
||
|
|
|
||
|
|
from .system_info import platform_bits
|
||
|
|
|
||
|
|
|
||
|
|
def _merge(old, new):
|
||
|
|
"""Concatenate two environment paths avoiding repeats.
|
||
|
|
|
||
|
|
Here `old` is the environment string before the base class initialize
|
||
|
|
function is called and `new` is the string after the call. The new string
|
||
|
|
will be a fixed string if it is not obtained from the current environment,
|
||
|
|
or the same as the old string if obtained from the same environment. The aim
|
||
|
|
here is not to append the new string if it is already contained in the old
|
||
|
|
string so as to limit the growth of the environment string.
|
||
|
|
|
||
|
|
Parameters
|
||
|
|
----------
|
||
|
|
old : string
|
||
|
|
Previous environment string.
|
||
|
|
new : string
|
||
|
|
New environment string.
|
||
|
|
|
||
|
|
Returns
|
||
|
|
-------
|
||
|
|
ret : string
|
||
|
|
Updated environment string.
|
||
|
|
|
||
|
|
"""
|
||
|
|
if new in old:
|
||
|
|
return old
|
||
|
|
if not old:
|
||
|
|
return new
|
||
|
|
|
||
|
|
# Neither new nor old is empty. Give old priority.
|
||
|
|
return ';'.join([old, new])
|
||
|
|
|
||
|
|
|
||
|
|
class MSVCCompiler(_MSVCCompiler):
|
||
|
|
def __init__(self, verbose=0, dry_run=0, force=0):
|
||
|
|
_MSVCCompiler.__init__(self, verbose, dry_run, force)
|
||
|
|
|
||
|
|
def initialize(self):
|
||
|
|
# The 'lib' and 'include' variables may be overwritten
|
||
|
|
# by MSVCCompiler.initialize, so save them for later merge.
|
||
|
|
environ_lib = os.getenv('lib', '')
|
||
|
|
environ_include = os.getenv('include', '')
|
||
|
|
_MSVCCompiler.initialize(self)
|
||
|
|
|
||
|
|
# Merge current and previous values of 'lib' and 'include'
|
||
|
|
os.environ['lib'] = _merge(environ_lib, os.environ['lib'])
|
||
|
|
os.environ['include'] = _merge(environ_include, os.environ['include'])
|
||
|
|
|
||
|
|
# msvc9 building for 32 bits requires SSE2 to work around a
|
||
|
|
# compiler bug.
|
||
|
|
if platform_bits == 32:
|
||
|
|
self.compile_options += ['/arch:SSE2']
|
||
|
|
self.compile_options_debug += ['/arch:SSE2']
|