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64 lines
2.1 KiB
Python
64 lines
2.1 KiB
Python
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import os
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from distutils.msvc9compiler import MSVCCompiler as _MSVCCompiler
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from .system_info import platform_bits
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def _merge(old, new):
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"""Concatenate two environment paths avoiding repeats.
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Here `old` is the environment string before the base class initialize
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function is called and `new` is the string after the call. The new string
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will be a fixed string if it is not obtained from the current environment,
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or the same as the old string if obtained from the same environment. The aim
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here is not to append the new string if it is already contained in the old
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string so as to limit the growth of the environment string.
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Parameters
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----------
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old : string
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Previous environment string.
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new : string
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New environment string.
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Returns
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-------
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ret : string
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Updated environment string.
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"""
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if not old:
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return new
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if new in old:
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return old
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# Neither new nor old is empty. Give old priority.
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return ';'.join([old, new])
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class MSVCCompiler(_MSVCCompiler):
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def __init__(self, verbose=0, dry_run=0, force=0):
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_MSVCCompiler.__init__(self, verbose, dry_run, force)
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def initialize(self, plat_name=None):
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# The 'lib' and 'include' variables may be overwritten
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# by MSVCCompiler.initialize, so save them for later merge.
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environ_lib = os.getenv('lib')
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environ_include = os.getenv('include')
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_MSVCCompiler.initialize(self, plat_name)
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# Merge current and previous values of 'lib' and 'include'
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os.environ['lib'] = _merge(environ_lib, os.environ['lib'])
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os.environ['include'] = _merge(environ_include, os.environ['include'])
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# msvc9 building for 32 bits requires SSE2 to work around a
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# compiler bug.
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if platform_bits == 32:
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self.compile_options += ['/arch:SSE2']
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self.compile_options_debug += ['/arch:SSE2']
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def manifest_setup_ldargs(self, output_filename, build_temp, ld_args):
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ld_args.append('/MANIFEST')
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_MSVCCompiler.manifest_setup_ldargs(self, output_filename,
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build_temp, ld_args)
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