Add CMake example

Author: pavelzw

docs/maintainer/example_recipes/cmake.md

@@ -0,0 +1,62 @@
+---
+title: 'CMake packages'
+---
+
+If you want to package a CMake library to conda-forge, you can use this recipe template:
+
+```yaml
+context:
+  version: "1.2.3"
+
+package:
+  name: example-package
+  version: ${{ version }}
+
+source:
+  url: https://github.com/example-package/example-package/archive/refs/tags/v${{ version }}.tar.gz
+  sha256: 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
+
+build:
+  number: 0
+  script:
+    content:
+      - if: unix
+        then:
+          - cmake -B build -GNinja $CMAKE_ARGS .
+        else:
+          - cmake -B build -GNinja %CMAKE_ARGS% .
+      - cmake --build build
+      - cmake --install build
+
+requirements:
+  build:
+    - ${{ stdlib('c') }}
+    - ${{ compiler('c') }}
+    - ${{ compiler('cxx') }} # optional
+    - cmake
+    - ninja
+  host:
+    # put any dependencies here
+  run_exports:
+    - ${{ pin_subpackage('example-package', upper_bound='x.x.x') }}
+
+tests:
+  - package_contents:
+      lib:
+        - example_package
+
+about:
+  homepage: https://github.com/example-package/example-package
+  summary: Summary of the package.
+  description: |
+    Description of the package
+  license: LGPL-3.0-or-later
+  license_file:
+    - COPYING
+  documentation: https://github.com/example-package/example-package
+  repository: https://github.com/example-package/example-package
+
+extra:
+  recipe-maintainers:
+    - LandoCalrissian
+```