Build: Use shared webp/zstd/zlib

CMakeModules/FindZstd.cmake

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+# Copyright (c) Meta Platforms, Inc. and affiliates.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+#
+# - Try to find Facebook zstd library
+# This will define
+# Zstd_FOUND
+# Zstd_INCLUDE_DIR
+# Zstd_LIBRARY
+#
+
+find_path(Zstd_INCLUDE_DIR NAMES zstd.h)
+
+find_library(Zstd_LIBRARY_DEBUG NAMES zstdd zstd_staticd)
+find_library(Zstd_LIBRARY_RELEASE NAMES zstd zstd_static)
+
+include(SelectLibraryConfigurations)
+SELECT_LIBRARY_CONFIGURATIONS(Zstd)
+
+include(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(
+    Zstd DEFAULT_MSG
+    Zstd_LIBRARY Zstd_INCLUDE_DIR
+)
+
+mark_as_advanced(Zstd_INCLUDE_DIR Zstd_LIBRARY)
+
+if(Zstd_FOUND AND NOT (TARGET Zstd::Zstd))
+  add_library (Zstd::Zstd UNKNOWN IMPORTED)
+  set_target_properties(Zstd::Zstd
+    PROPERTIES
+    IMPORTED_LOCATION ${Zstd_LIBRARY}
+    INTERFACE_INCLUDE_DIRECTORIES ${Zstd_INCLUDE_DIR})
+endif()