package/python-pyqt5: Fix per-package build

pyqt5 uses qmake internally, but is python package rather than a qmake
package. Therefore, we need to manually apply the same fixup as for
qmake packages.

Without this, top-level parallel build may fail because dependencies are
looked for in the qt5 per-package staging directory instead of the
python-pyqt5 one.

Signed-off-by: Florent AUMAITRE <florent.aumaitre@medianesysteme.com>
Signed-off-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>

package/python-pyqt5/python-pyqt5.mk

@@ -152,6 +152,11 @@ define PYTHON_PYQT5_GENERATE_QTDETAIL
 	)
 endef
 
+# The file "qt.conf" can be used to override the hard-coded paths that are
+# compiled into the Qt library. We need it to make "qmake" relocatable and
+# tweak the per-package install pathes
+PYTHON_PYQT5_PRE_CONFIGURE_HOOKS += QT5_QT_CONF_FIXUP
+
 PYTHON_PYQT5_CONF_OPTS = \
 	--bindir $(TARGET_DIR)/usr/bin \
 	--destdir $(TARGET_DIR)/usr/lib/$(PYTHON_PYQT5_PYTHON_DIR)/site-packages \