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suyu/CMakeModules/DownloadExternals.cmake
lat9nq ad55faaa35 cmake: Download Boost if inadequate local version
Building SDL2 from externals is incompatible with Conan's version of
libiconv, a requirement of Conan's Boost package. Solution is to use the
same Boost package in use by the linux-fresh container. This tells CMake
to download boost_1_75_0.tar.xz from yuzu-emu/ext-linux-bin at CMake's
configuration step, much the same way Qt and FFmpeg are downloaded for
Windows.

Also makes DownloadExternals.cmake cross-platform. Although the CMake
code is not entirely specific to Linux, only Linux has Boost libraries
available at ext-linux-bin, whereas there is no equivalent Boost package
for Windows at ext-windows-bin. caveat emptor
2021-04-22 14:09:40 -04:00

32 lines
1.4 KiB
CMake

# This function downloads a binary library package from our external repo.
# Params:
# remote_path: path to the file to download, relative to the remote repository root
# prefix_var: name of a variable which will be set with the path to the extracted contents
function(download_bundled_external remote_path lib_name prefix_var)
set(package_repo "no_platform")
set(package_extension "no_platform")
if (WIN32)
set(package_repo "ext-windows-bin/raw/master/")
set(package_extension ".7z")
elseif (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
set(package_repo "ext-linux-bin/raw/main/")
set(package_extension ".tar.xz")
else()
message(FATAL_ERROR "No package available for this platform")
endif()
set(package_url "https://github.com/yuzu-emu/${package_repo}")
set(prefix "${CMAKE_BINARY_DIR}/externals/${lib_name}")
if (NOT EXISTS "${prefix}")
message(STATUS "Downloading binaries for ${lib_name}...")
file(DOWNLOAD
${package_url}${remote_path}${lib_name}${package_extension}
"${CMAKE_BINARY_DIR}/externals/${lib_name}${package_extension}" SHOW_PROGRESS)
execute_process(COMMAND ${CMAKE_COMMAND} -E tar xf "${CMAKE_BINARY_DIR}/externals/${lib_name}${package_extension}"
WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/externals")
endif()
message(STATUS "Using bundled binaries at ${prefix}")
set(${prefix_var} "${prefix}" PARENT_SCOPE)
endfunction()