cmake: Replace distutils with CMake for version checks

This commit replaces the use of distutils.version.LooseVersion() with
CMake's version comparison operator, which implements relational version
string checking in the same manner (i.e., comparing numeric components
of a version string numerically).

1 files changed, 16 insertions, 10 deletions

diff --git a/mpm/python/CMakeLists.txt b/mpm/python/CMakeLists.txt
index b15578484..d5106b1b3 100644
--- a/mpm/python/CMakeLists.txt
+++ b/mpm/python/CMakeLists.txt
@@ -12,31 +12,37 @@
 set(GEVENT_MIN_VERSION "1.4.0")
 set(PYUDEV_MIN_VERSION "0.21.0")
 
-PYTHON_CHECK_MODULE(
-    "gevent ${GEVENT_MIN_VERSION} or greater"
-    "gevent" "LooseVersion(gevent.__version__) >= LooseVersion('${GEVENT_MIN_VERSION}')"
+PYTHON_CHECK_MODULE_VERSION(
+    "gevent module"
+    "gevent"
+    "gevent.__version__"
+    ${GEVENT_MIN_VERSION}
     HAVE_PYTHON_MODULE_GEVENT
 )
 
 # mprpc does not expose a __version__ attribute, so merely check for its
-# presence.
+# presence
 PYTHON_CHECK_MODULE(
+    "mprpc module"
     "mprpc"
-    "mprpc" "True"
+    "True"
     HAVE_PYTHON_MODULE_MPRPC
 )
 
-PYTHON_CHECK_MODULE(
-    "pyudev ${PYUDEV_MIN_VERSION} or greater"
-    "pyudev" "LooseVersion(pyudev.__version__) >= LooseVersion('${PYUDEV_MIN_VERSION}')"
+PYTHON_CHECK_MODULE_VERSION(
+    "pyudev module"
+    "pyudev" 
+    "pyudev.__version__"
+    ${PYUDEV_MIN_VERSION}
     HAVE_PYTHON_MODULE_PYUDEV
 )
 
 # Older versions of pyroute2 (e.g. 0.5.2) do not expose a __version__
 # attribute, so merely check for its presence.
 PYTHON_CHECK_MODULE(
-    "pyroute2"
-    "pyroute2" "True"
+    "pyroute2 module"
+    "pyroute2" 
+    "True"
     HAVE_PYTHON_MODULE_PYROUTE2
 )