[pybind11] Build against python3 library inside vcpkg, add find_acquire_program(PYTHON3)

ports/pybind11/CONTROL

@@ -1,3 +1,4 @@
 Source: pybind11
-Version: 2.1.0
-Description: pybind11 is a lightweight header-only library that exposes C++ types in Python and vice versa, mainly to create Python bindings of existing C++ code.
+Version: 2.1.0-1
+Description: pybind11 is a lightweight header-only library that exposes C++ types in Python and vice versa, mainly to create Python bindings of existing C++ code.
+Build-Depends: python3

ports/pybind11/portfile.cmake

@@ -1,17 +1,32 @@
 include(vcpkg_common_functions)
 
-set(SOURCE_PATH ${CURRENT_BUILDTREES_DIR}/src/pybind11-2.1.0)
-
-vcpkg_download_distfile(ARCHIVE
-    URLS "https://github.com/pybind/pybind11/archive/v2.1.0.tar.gz"
-    FILENAME "pybind11-2.1.0.tar.gz"
+vcpkg_from_github(
+    OUT_SOURCE_PATH SOURCE_PATH
+    REPO pybind/pybind11
+    REF v2.1.0
     SHA512 2f74dcd2b82d8e41da7db36351284fe04511038bec66bdde820da9c0fce92f6d2c5aeb2e48264058a91a775a1a6a99bc757d26ebf001de3df4183d700d46efa1
+    HEAD_REF master
 )
-vcpkg_extract_source_archive(${ARCHIVE})
+
+vcpkg_find_acquire_program(PYTHON3)
+
+get_filename_component(PYPATH ${PYTHON3} PATH)
+set(ENV{PATH} "$ENV{PATH};${PYPATH}")
 
 vcpkg_configure_cmake(
-        SOURCE_PATH ${SOURCE_PATH}
-        OPTIONS -DPYBIND11_TEST=OFF
+    SOURCE_PATH ${SOURCE_PATH}
+    PREFER_NINJA
+    OPTIONS
+        -DPYBIND11_TEST=OFF
+        -DPYTHONLIBS_FOUND=ON
+        -DPYTHON_INCLUDE_DIRS=${CURRENT_INSTALLED_DIR}/include
+        -DPYTHON_MODULE_EXTENSION=.dll
+    OPTIONS_RELEASE
+        -DPYTHON_IS_DEBUG=OFF
+        -DPYTHON_LIBRARIES=${CURRENT_INSTALLED_DIR}/lib/python36.lib
+    OPTIONS_DEBUG
+        -DPYTHON_IS_DEBUG=ON
+        -DPYTHON_LIBRARIES=${CURRENT_INSTALLED_DIR}/debug/lib/python36_d.lib
 )
 
 vcpkg_install_cmake()