Check for minor version requirement

README.rst

@@ -55,6 +55,7 @@ New in version 1.0
 
  - Lots of documentation fixes and other nice things like that.
  - Nailed what appears to be the last outstanding memory leak.
+ - Explicitly require libmemcached 0.32 or newer.
 
 New in version 0.9
 ------------------

_pylibmcmodule.c

@@ -1210,8 +1210,19 @@ PyMODINIT_FUNC init_pylibmc(void) {
     PyObject *module, *exc_objs;
     PylibMC_Behavior *b;
     PylibMC_McErr *err;
+    int libmemcached_version_minor;
     char name[128];
 
+    /* Check minimum requirement of libmemcached version */
+    libmemcached_version_minor = \
+        atoi(strchr(LIBMEMCACHED_VERSION_STRING, '.') + 1);
+    if (libmemcached_version_minor < 32) {
+        PyErr_Format(PyExc_RuntimeError,
+            "pylibmc requires >= libmemcached 0.32, was compiled with %s",
+            LIBMEMCACHED_VERSION_STRING);
+        return;
+    }
+
     if (PyType_Ready(&PylibMC_ClientType) < 0) {
         return;
     }