Patch pkg_win_release ci job to force using VS 2015 to build the python wrapper.

.gitlab-ci.yml

@@ -275,6 +275,9 @@ pkg_win_release:
           #- 'cmake -G "MinGW Makefiles" -DBUILD_WRAPPER_MATLAB=ON -DBUILD_WRAPPER_PYTHON=ON -DSLOW_TESTS=OFF -DCPACK_PACKAGE_VERSION=%CI_COMMIT_TAG% -DBUILD_DOCUMENTATION=ON -DEXCLUDE_FAUST_LIB_INSTALL=ON -DCMAKE_INSTALL_PREFIX=win_pkg_build -DBUILD_TESTING=OFF -DAPI_DOC_BASE_URL="file:///C:/Program Files/Faust/doc/" -DREMOTE_DATA_URL="%DURL%" -DREMOTE_DATA_FILE="%DFILE%" -DUSE_GPU_MOD=ON -DCMAKE_PREFIX_PATH=../gpu_mod ..'
           # - make
         - 'cmake -G "Visual Studio 14 Win64" -DBUILD_WRAPPER_MATLAB=ON -DBUILD_WRAPPER_PYTHON=ON -DSLOW_TESTS=OFF -DCPACK_PACKAGE_VERSION=%CI_COMMIT_TAG% -DBUILD_DOCUMENTATION=ON -DEXCLUDE_FAUST_LIB_INSTALL=ON -DCMAKE_INSTALL_PREFIX=win_pkg_build -DBUILD_TESTING=OFF -DUSE_MATIO_STATIC_LIBS=ON -DMATIO_STATIC_LIB_PATH="C:/Users/faust/Downloads/matio-1.5.13/visual_studio/x64/Release/libmatio.lib" -DZ_STATIC_LIB_PATH="C:/Users/faust/Downloads/zlib-1.2.11/contrib/vstudio/vc14/x64/ZlibStatDebug/zlibstat.lib" -DHDF5_STATIC_LIB_PATH="C:/Users/faust/Downloads/hdf5-1.10.3/build/bin/Release/libhdf5.lib" -DAPI_DOC_BASE_URL="file:///C:/Program Files/Faust/doc/" -DREMOTE_DATA_URL="%DURL%" -DREMOTE_DATA_FILE="%DFILE%" -DEXPERIMENTAL_PKG=OFF -DUSE_GPU_MOD=ON -DCMAKE_PREFIX_PATH=../gpu_mod -DPYTHON_ENCODING=windows-1252 -DBUILD_MULTITHREAD=ON -DBUILD_FLOAT_PYX=ON ..'
+        # explicitely configure distutils (to use the VS configuration we'll tell in next bat script) because by default it uses the most recent VS version but we need to use VS 2015 (because libmatio etc. are compiled with this version)
+        - set DISTUTILS_USE_SDK=1
+        - call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\x86_amd64\vcvarsx86_amd64.bat"
         - cmake --build . --config Release
         - makensis faust.nsi
     artifacts: