gnu: python-shiboken-2: Add fix for python-pyside-2.
* gnu/packages/qt.scm (python-shiboken-2)[arguments]: Add 'workaround-importlib-error' phase.
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		|  | @ -3955,7 +3955,20 @@ color-related widgets.") | |||
|           (add-before 'configure 'set-build-env | ||||
|             (lambda _ | ||||
|               (let ((llvm #$(this-package-input "clang-toolchain"))) | ||||
|                 (setenv "CLANG_INSTALL_DIR" llvm))))))) | ||||
|                 (setenv "CLANG_INSTALL_DIR" llvm)))) | ||||
|           (add-before 'configure 'workaround-importlib-error | ||||
|             (lambda _ | ||||
|               ;; The following hack works around the error | ||||
|               ;;   "module 'importlib' has no attribute 'machinery'" | ||||
|               ;; when building python-pyside-2, which depends on | ||||
|               ;; this package. | ||||
|               (substitute* "libshiboken/embed/signature_bootstrap.py" | ||||
|                 (("import importlib" all) | ||||
|                  (string-append | ||||
|                   all | ||||
|                   "\n        import importlib.machinery as imachi")) | ||||
|                 (("importlib.machinery.ModuleSpec") | ||||
|                  "imachi.ModuleSpec"))))))) | ||||
|     (home-page "https://wiki.qt.io/Qt_for_Python") | ||||
|     (synopsis | ||||
|      "Shiboken generates bindings for C++ libraries using CPython source code") | ||||
|  |  | |||
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