cmake: drop WITH_PYTHON2 option

* drop WITH_PYTHON2 option
* print warning message if WITH_PYTHON3 is disabled
* drop MGR_PYTHON_VERSION option, as we don't support use different
  python version for python binding and ceph-mgr embedded python
  interpreter anymore. as before switching to python3-only build,
  we can build python3 and python2 python bindings, and ceph-mgr
  can use either of them. but after switching to python3-only
  build, ceph-mgr has to use whatever python version used to
  build python binding.
* move WITH_PYTHON3 option to $top_srcdir/CMakeLists.txt, as ceph-mgr
  and python binding will share this option.
* hardware ${PYTHON_VERSION} to 3
* hardware ${Python${PYTHON_VERSION}_VERSION_MAJOR} to 3
* only build boost library with python3
* s/Python_EXECUTABLE/Python3_EXECUTABLE/
* update the build scripts and packagings accordingly
* rename all cython${PYTHON_VERSION}_* targets to cython_*
* update distutils_install_module() so it does not take python_version
  parameter anymore.

Signed-off-by: Kefu Chai <kchai@redhat.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/do_cmake.sh b/do_cmake.sh
index 2f6e5bbb82e..12ab5377f87 100755
--- a/do_cmake.sh
+++ b/do_cmake.sh
@@ -42,7 +42,7 @@ else
 fi
 
 if [[ "$PYBUILD" =~ ^3(\..*)?$ ]] ; then
-    ARGS+=" -DWITH_PYTHON2=OFF -DWITH_PYTHON3=${PYBUILD} -DMGR_PYTHON_VERSION=${PYBUILD}"
+    ARGS+=" -DWITH_PYTHON3=${PYBUILD}"
 fi
 
 if type ccache > /dev/null 2>&1 ; then