Spaces:
Running
Running
| import os | |
| from distutils.msvc9compiler 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 not old: | |
| return new | |
| if new in old: | |
| return old | |
| # 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, plat_name=None): | |
| # 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, plat_name) | |
| # 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'] | |
| def manifest_setup_ldargs(self, output_filename, build_temp, ld_args): | |
| ld_args.append('/MANIFEST') | |
| _MSVCCompiler.manifest_setup_ldargs(self, output_filename, | |
| build_temp, ld_args) | |