first commit

externals/find-modules/Findlz4.cmake

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+# SPDX-FileCopyrightText: 2022 yuzu Emulator Project
+# SPDX-License-Identifier: GPL-2.0-or-later
+
+include(FindPackageHandleStandardArgs)
+
+find_package(lz4 QUIET CONFIG)
+if (lz4_CONSIDERED_CONFIGS)
+    find_package_handle_standard_args(lz4 CONFIG_MODE)
+else()
+    find_package(PkgConfig QUIET)
+    pkg_search_module(LZ4 QUIET IMPORTED_TARGET liblz4)
+    find_package_handle_standard_args(lz4
+        REQUIRED_VARS LZ4_LINK_LIBRARIES
+        VERSION_VAR LZ4_VERSION
+    )
+endif()
+
+if (lz4_FOUND AND NOT TARGET lz4::lz4)
+    if (TARGET LZ4::lz4_shared)
+        add_library(lz4::lz4 ALIAS LZ4::lz4_shared)
+    elseif (TARGET LZ4::lz4_static)
+        add_library(lz4::lz4 ALIAS LZ4::lz4_static)
+    else()
+        add_library(lz4::lz4 ALIAS PkgConfig::LZ4)
+    endif()
+endif()