usse vcpkg just for the libsndfile build chain

Tools/CMake/vcpkg/ports/libogg/portfile.cmake

@@ -0,0 +1,32 @@
+set(LOCAL_ARCHIVE "$ENV{VCPKG_LIB_SOURCE_ROOT}/xiph-ogg-v1.3.6.tar.gz")
+
+vcpkg_extract_source_archive(
+    SOURCE_PATH
+    ARCHIVE "${LOCAL_ARCHIVE}"
+)
+
+if(VCPKG_TARGET_IS_MINGW)
+    vcpkg_replace_string("${SOURCE_PATH}/win32/ogg.def" "LIBRARY ogg" "LIBRARY libogg")
+endif()
+
+vcpkg_cmake_configure(
+    SOURCE_PATH "${SOURCE_PATH}"
+    OPTIONS
+        -DCMAKE_POLICY_VERSION_MINIMUM=3.5 #https://gitlab.xiph.org/xiph/ogg/-/issues/2304
+        -DINSTALL_DOCS=OFF
+        -DINSTALL_PKG_CONFIG_MODULE=ON
+        -DBUILD_TESTING=OFF
+    MAYBE_UNUSED_VARIABLES
+        CMAKE_POLICY_VERSION_MINIMUM
+)
+
+vcpkg_cmake_install()
+
+vcpkg_cmake_config_fixup(CONFIG_PATH lib/cmake/Ogg PACKAGE_NAME ogg)
+
+file(REMOVE_RECURSE "${CURRENT_PACKAGES_DIR}/debug/include")
+
+vcpkg_copy_pdbs()
+vcpkg_fixup_pkgconfig()
+
+vcpkg_install_copyright(FILE_LIST "${SOURCE_PATH}/COPYING")

Tools/CMake/vcpkg/ports/libogg/vcpkg.json

@@ -0,0 +1,18 @@
+{
+  "name": "libogg",
+  "version": "1.3.6",
+  "port-version": 1,
+  "description": "Ogg is a multimedia container format, and the native file and stream format for the Xiph.org multimedia codecs.",
+  "homepage": "https://www.xiph.org/ogg",
+  "license": "BSD-3-Clause",
+  "dependencies": [
+    {
+      "name": "vcpkg-cmake",
+      "host": true
+    },
+    {
+      "name": "vcpkg-cmake-config",
+      "host": true
+    }
+  ]
+}