try another osx/r thing

bollwyvl · bollwyvl · commit 604d90b737e7 · 2020-06-21T22:15:34.000-04:00
diff --git a/ci/env-test.yml.in b/ci/env-test.yml.in
@@ -20,6 +20,7 @@ dependencies:
   - r-irkernel
   - r-languageserver
   - r-stringi >=1.4.6
+  - r-xfun !=0.15
   - rpy2
   # test tools
   - pytest-asyncio
