pypy: fix optimizationLevel 1 erroring

Changed files
+3 -1
pkgs
development
interpreters
python
+3 -1
pkgs/development/interpreters/python/pypy/default.nix
···
${pythonForPypy.interpreter} rpython/bin/rpython \
--make-jobs="$NIX_BUILD_CORES" \
-O${optimizationLevel} \
-
--batch pypy/goal/targetpypystandalone.py
+
--batch \
+
pypy/goal/targetpypystandalone.py \
+
${lib.optionalString ((toString optimizationLevel) == "1") "--withoutmod-cpyext"}
runHook postBuild
'';