Merge pull request #6 from AnacondaRecipes/update_2.8.1

Update 2.8.1

Author: skupr-anaconda

recipe/gh2146.diff

@@ -1,5 +1,5 @@
-{% set version = "2.7.0" %}
-{% set sha256 = "6cd73b3d0bf3daf415b5f9b87ca8817cc2e2b64c275d65f9500250f9fee1677e" %}
+{% set version = "2.8.1" %}
+{% set sha256 = "f1bcc07caa568eb312411dde5308b1e250bd0e1bc020fae855bf9f43209940cc" %}
 
 package:
   name: pybind11
@@ -9,22 +9,21 @@ source:
   fn: pybind11-{{ version }}.tar.gz
   url: https://github.com/pybind/pybind11/archive/v{{ version }}.tar.gz
   sha256: {{ sha256 }}
-  # 5/24/2021: The patch was fixed https://github.com/pybind/pybind11/pull/2146
-  #patches:
-  #  - gh2146.diff
 
 build:
-  number: 1
+  number: 0
 
 requirements:
   build:
-    - cmake
+    - cmake  >=3.18
     - make      # [unix]
     - {{ compiler('cxx') }}
   host:
     - python
+    - ninja
     - pip
-    - setuptools
+    - setuptools >=42
+    - wheel
   run:
     - python