+# On Windows, download the dependencies if need be.
+if(LYX_DEPENDENCIES_DOWNLOAD)
+ message(STATUS)
+ # Do not check for bitness against CMAKE_SIZEOF_VOID_P, as it relates to the bitness of the CMake executable,
+ # not that of the compiler.
+ if(MSVC_VERSION GREATER_EQUAL 1920 AND "${CMAKE_CXX_COMPILER_ARCHITECTURE_ID}" MATCHES "x64")
+ set(LYX_DEPENDENCIES_DIR ${TOP_BINARY_DIR}/msvc2019-deps-64)
+ set(deps_files lyx-windows-deps-msvc2019_64.zip)
+ set(deps_server http://ftp.lyx.org/pub/lyx/devel/win_deps)
+ set(GNUWIN32_DIR ${LYX_DEPENDENCIES_DIR}/lyx-windows-deps-msvc2019-64)
+ elseif(MSVC_VERSION GREATER_EQUAL 1920)
+ set(LYX_DEPENDENCIES_DIR ${TOP_BINARY_DIR}/msvc2019-deps)
+ set(deps_files lyx-windows-deps-msvc2019_32.zip)
+ set(deps_server http://ftp.lyx.org/pub/lyx/devel/win_deps)
+ set(GNUWIN32_DIR ${LYX_DEPENDENCIES_DIR}/lyx-windows-deps-msvc2019)
+ elseif(MSVC_VERSION GREATER_EQUAL 1900 AND NOT "${CMAKE_CXX_COMPILER_ARCHITECTURE_ID}" MATCHES "x64")
+ set(LYX_DEPENDENCIES_DIR ${TOP_BINARY_DIR}/msvc2015-deps)
+ set(deps_files lyx-windows-deps-msvc2015.zip)
+ set(deps_server http://ftp.lyx.org/pub/lyx/devel/win_deps)
+ set(GNUWIN32_DIR ${LYX_DEPENDENCIES_DIR}/lyx-windows-deps-msvc2015)
+ else()
+ message(FATAL_ERROR "error: no dependency package known for the selected MSVC version.")
+ endif()
+ message(STATUS "Using downloaded dependencies in ${LYX_DEPENDENCIES_DIR}")
+ foreach(it ${deps_files})
+ set(already_downloaded already_downloaded-NOTFOUND CACHE PATH "downloaded" FORCE)
+ find_file(already_downloaded ${it} "${LYX_DEPENDENCIES_DIR}/download")
+ if(NOT already_downloaded)
+ message(STATUS "Downloading ${it} ...")
+ file(DOWNLOAD ${deps_server}/${it} ${LYX_DEPENDENCIES_DIR}/download/${it} SHOW_PROGRESS STATUS status LOG log)
+ list(GET status 0 status_code)
+ list(GET status 1 status_string)
+ if(NOT status_code EQUAL 0)
+ file(REMOVE ${LYX_DEPENDENCIES_DIR}/${it})
+ message(FATAL_ERROR "error: downloading '${it}' failed. status_code: ${status_code}, status_string: ${status_string}. \nLog: ${log} ")
+ endif()
+ execute_process(COMMAND ${CMAKE_COMMAND} -E tar xzf ${LYX_DEPENDENCIES_DIR}/download/${it}
+ WORKING_DIRECTORY ${LYX_DEPENDENCIES_DIR})
+ endif()
+ endforeach()
+endif()
+
+# Try to get some information from configure.ac
+include(LyXPaths)
+