Backport gh-6243 #6340
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Backport gh-6243 #6340
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Issue: _exec_command function doesn't close 'so_dup' and 'se_dup' file descriptors.SciPy try to build scipy\special\amos\zunik.f and crash:error: Command "C:\Program Files (x86)\Intel\Composer XE 2015\bin\intel64\ifort.exe /nologo /MD /nbs /names:lowercase /assume:underscore /O1 -IC:\Python27\lib\site-packages\numpy\core\include -c /c scipy\special\amos\zunik.f /Fobuild\temp.win-amd64-2.7\scipy\special\amos\zunik.o" failed with exit status -1073741502
behavior affect at least python 3.5 and SciPy build and build failed.
During initialization <python>.distutils.MSVCCompiler replace Intel
environment('include' and 'lib' paths). This fix decorate 'initialize'
function in MSVCCompiler and extend 'lib' and 'include' environment
variables. Changed compilation keys: generate optimized code
specialized for Intel processors with SSE4.2 support.
folder with whitespaces.
distutils.msvccompiler.MSVCCompiler
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