[python3] Install pkg-config files on Windows platforms (#22198)

ports/python3/0009-python-embed.pc.patch

@@ -0,0 +1,11 @@
+diff --git a/Misc/python-embed.pc.in b/Misc/python-embed.pc.in
+index 2be9df8..a2e5ff7 100644
+--- a/Misc/python-embed.pc.in
++++ b/Misc/python-embed.pc.in
+@@ -9,5 +9,5 @@ Description: Embed Python into an application
+ Requires:
+ Version: @VERSION@
+ Libs.private: @LIBS@
+-Libs: -L${libdir} -lpython@VERSION@@ABIFLAGS@
++Libs: -L${libdir} -lpython@ABIVERSION@@ABIFLAGS@@ABISUFFIX@
+ Cflags: -I${includedir}/python@VERSION@@ABIFLAGS@

ports/python3/portfile.cmake

@@ -34,6 +34,7 @@ if(VCPKG_TARGET_IS_WINDOWS OR VCPKG_TARGET_IS_UWP)
     if("${WINSDK_VERSION}" VERSION_GREATER_EQUAL "10.0.22000")
         list(APPEND PATCHES "0007-workaround-windows-11-sdk-rc-compiler-error.patch")
     endif()
+    list(APPEND PATCHES "0009-python-embed.pc.patch")
 endif()
 
 vcpkg_from_github(
@@ -158,6 +159,30 @@ if(VCPKG_TARGET_IS_WINDOWS OR VCPKG_TARGET_IS_UWP)
         )
     endif()
 
+    # pkg-config files
+    set(prefix "${CURRENT_PACKAGES_DIR}")
+    set(libdir [[${prefix}/lib]])
+    set(ABIVERSION "${PYTHON_VERSION_MAJOR}${PYTHON_VERSION_MINOR}")
+    set(VERSION "${PYTHON_VERSION_MAJOR}.${PYTHON_VERSION_MINOR}")
+
+    if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "release")
+        set(exec_prefix "${CURRENT_PACKAGES_DIR}/tools/${PORT}")
+        set(includedir [[${prefix}/include]])
+        set(ABISUFFIX "")
+        configure_file("${SOURCE_PATH}/Misc/python.pc.in" "${CURRENT_PACKAGES_DIR}/lib/pkgconfig/python-${VERSION}.pc" @ONLY)
+        configure_file("${SOURCE_PATH}/Misc/python-embed.pc.in" "${CURRENT_PACKAGES_DIR}/lib/pkgconfig/python-${VERSION}-embed.pc" @ONLY)
+    endif()
+
+    if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL "debug")
+        set(exec_prefix "\${prefix}/../tools/${PORT}")
+        set(includedir [[${prefix}/../include]])
+        set(ABISUFFIX "_d")
+        configure_file("${SOURCE_PATH}/Misc/python.pc.in" "${CURRENT_PACKAGES_DIR}/debug/lib/pkgconfig/python-${VERSION}.pc" @ONLY)
+        configure_file("${SOURCE_PATH}/Misc/python-embed.pc.in" "${CURRENT_PACKAGES_DIR}/debug/lib/pkgconfig/python-${VERSION}-embed.pc" @ONLY)
+    endif()
+
+    vcpkg_fixup_pkgconfig()
+
     vcpkg_clean_msbuild()
 else()
     set(OPTIONS

ports/python3/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "python3",
   "version-semver": "3.10.1",
-  "port-version": 3,
+  "port-version": 4,
   "description": "The Python programming language",
   "homepage": "https://github.com/python/cpython",
   "supports": "!uwp",

versions/baseline.json

@@ -5498,7 +5498,7 @@
     },
     "python3": {
       "baseline": "3.10.1",
-      "port-version": 3
+      "port-version": 4
     },
     "qca": {
       "baseline": "2.3.4",

versions/p-/python3.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "75172bc36c45d15ee298de1803625af1770cb805",
+      "version-semver": "3.10.1",
+      "port-version": 4
+    },
     {
       "git-tree": "35f071d147af8c4d8dfac5eaa95ad41e395448a5",
       "version-semver": "3.10.1",