early-access version 2853

externals/vcpkg/ports/liblzma/vcpkg-cmake-wrapper.cmake

@@ -0,0 +1,64 @@
+cmake_policy(PUSH)
+cmake_policy(SET CMP0012 NEW)
+cmake_policy(SET CMP0057 NEW)
+set(z_vcpkg_liblzma_fixup_needed 0)
+if(NOT "CONFIG" IN_LIST ARGS AND NOT "NO_MODULE" IN_LIST ARGS AND NOT CMAKE_DISABLE_FIND_PACKAGE_LibLZMA)
+    get_filename_component(z_vcpkg_liblzma_prefix "${CMAKE_CURRENT_LIST_DIR}" DIRECTORY)
+    get_filename_component(z_vcpkg_liblzma_prefix "${z_vcpkg_liblzma_prefix}" DIRECTORY)
+    find_path(LIBLZMA_INCLUDE_DIR NAMES lzma.h PATHS "${z_vcpkg_liblzma_prefix}/include" NO_DEFAULT_PATH)
+    # liblzma doesn't use a debug postfix, but FindLibLZMA.cmake expects it 
+    find_library(LIBLZMA_LIBRARY_RELEASE NAMES lzma PATHS "${z_vcpkg_liblzma_prefix}/lib" NO_DEFAULT_PATH)
+    find_library(LIBLZMA_LIBRARY_DEBUG NAMES lzma PATHS "${z_vcpkg_liblzma_prefix}/debug/lib" NO_DEFAULT_PATH)
+    unset(z_vcpkg_liblzma_prefix)
+    if(CMAKE_VERSION VERSION_LESS 3.16)
+        # Older versions of FindLibLZMA.cmake need a single lib in LIBLZMA_LIBRARY.
+        set(z_vcpkg_liblzma_fixup_needed 1)
+        set(LIBLZMA_LIBRARY "${LIBLZMA_LIBRARY_RELEASE}" CACHE INTERNAL "")
+    elseif(NOT TARGET LibLZMA::LibLZMA)
+        set(z_vcpkg_liblzma_fixup_needed 1)
+    endif()
+    # Known values, and required. Skip expensive tests.
+    set(LIBLZMA_HAS_AUTO_DECODER 1 CACHE INTERNAL "")
+    set(LIBLZMA_HAS_EASY_ENCODER 1 CACHE INTERNAL "")
+    set(LIBLZMA_HAS_LZMA_PRESET 1 CACHE INTERNAL "")
+endif()
+
+_find_package(${ARGS})
+
+if(z_vcpkg_liblzma_fixup_needed)
+    include(SelectLibraryConfigurations)
+    select_library_configurations(LIBLZMA)
+    if(NOT TARGET LibLZMA::LibLZMA)
+        # Backfill LibLZMA::LibLZMA to versions of cmake before 3.14
+        add_library(LibLZMA::LibLZMA UNKNOWN IMPORTED)
+        if(DEFINED LIBLZMA_INCLUDE_DIRS)
+            set_target_properties(LibLZMA::LibLZMA PROPERTIES
+                INTERFACE_INCLUDE_DIRECTORIES "${LIBLZMA_INCLUDE_DIRS}")
+        endif()
+        set_property(TARGET LibLZMA::LibLZMA APPEND PROPERTY
+            IMPORTED_CONFIGURATIONS RELEASE)
+        set_target_properties(LibLZMA::LibLZMA PROPERTIES
+            IMPORTED_LINK_INTERFACE_LANGUAGES_RELEASE "C"
+            IMPORTED_LOCATION_RELEASE "${LIBLZMA_LIBRARY_RELEASE}")
+        if(EXISTS "${LIBLZMA_LIBRARY}")
+            set_target_properties(LibLZMA::LibLZMA PROPERTIES
+                IMPORTED_LINK_INTERFACE_LANGUAGES "C"
+                IMPORTED_LOCATION "${LIBLZMA_LIBRARY}")
+        endif()
+    endif()
+    if(LIBLZMA_LIBRARY_DEBUG)
+        # Backfill debug variant to versions of cmake before 3.16
+        set_property(TARGET LibLZMA::LibLZMA APPEND PROPERTY IMPORTED_CONFIGURATIONS DEBUG)
+        set_target_properties(LibLZMA::LibLZMA PROPERTIES IMPORTED_LOCATION_DEBUG "${LIBLZMA_LIBRARY_DEBUG}")
+    endif()
+endif()
+if(LIBLZMA_LIBRARIES AND NOT "Threads::Threads" IN_LIST LIBLZMA_LIBRARIES)
+    set(THREADS_PREFER_PTHREAD_FLAG TRUE)
+    find_package(Threads)
+    list(APPEND LIBLZMA_LIBRARIES ${CMAKE_THREAD_LIBS_INIT})
+    if(TARGET LibLZMA::LibLZMA)
+        set_property(TARGET LibLZMA::LibLZMA APPEND PROPERTY INTERFACE_LINK_LIBRARIES Threads::Threads)
+    endif()
+endif()
+unset(z_vcpkg_liblzma_fixup_needed)
+cmake_policy(POP)