Index: ffi/build.py
--- ffi/build.py.orig
+++ ffi/build.py
@@ -163,9 +163,8 @@ def main_posix(kind, library_ext):
         print(msg)
         print(warning + '\n')
     else:
-
-        if not out.startswith('11'):
-            msg = ("Building llvmlite requires LLVM 11.x.x, got "
+        if not (out.startswith('11') or out.startswith('12') or out.startswith('13')):
+            msg = ("Building llvmlite requires LLVM 11-13.x.x, got "
                    "{!r}. Be sure to set LLVM_CONFIG to the right executable "
                    "path.\nRead the documentation at "
                    "http://llvmlite.pydata.org/ for more information about "