Using ENABLE_VERSION_SUFFIX on shiboken does not work

If using ENABLE_VERSION_SUFFIX on cmake, the output is not as expected.
The produced .pc file contains an invalid path to the include directory, because the shiboken_SUFFIX variable is not set at the configure of the pc file.
Also there is a typo, even if you fix that and the variable is set, the output would be:
-I${includedir}/-1.2 but the correct value would be:
-I${includedir}-1.2 (includedir = .../include/shiboken).

Also the cmake configs (installed later in prefix/libXY/cmake/Shiboken-1.2.2/) are not correct, they contain:
SET(SHIBOKEN_INCLUDE_DIR "/usr/include/shiboken")
but should contain:
SET(SHIBOKEN_INCLUDE_DIR "/usr/include/shiboken-1.2")

I have created a patch file which fixes this problems, but I am not sure if I do not have forget something.