geode/cmake/CPM.cmake
matcool 2c3520f454 Add CPM.cmake, use it for external libraries
this removes submodules and external libraries in the code in favor of
importing them as CPM packages. CPM_SOURCE_CACHE is recommended as
codegen has to readd two of the same dependencies
2022-12-12 18:20:24 -03:00

21 lines
851 B
CMake

set(CPM_DOWNLOAD_VERSION 0.36.0)
if(CPM_SOURCE_CACHE)
set(CPM_DOWNLOAD_LOCATION "${CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
elseif(DEFINED ENV{CPM_SOURCE_CACHE})
set(CPM_DOWNLOAD_LOCATION "$ENV{CPM_SOURCE_CACHE}/cpm/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
else()
set(CPM_DOWNLOAD_LOCATION "${CMAKE_BINARY_DIR}/cmake/CPM_${CPM_DOWNLOAD_VERSION}.cmake")
endif()
# Expand relative path. This is important if the provided path contains a tilde (~)
get_filename_component(CPM_DOWNLOAD_LOCATION ${CPM_DOWNLOAD_LOCATION} ABSOLUTE)
if(NOT (EXISTS ${CPM_DOWNLOAD_LOCATION}))
message(STATUS "Downloading CPM.cmake to ${CPM_DOWNLOAD_LOCATION}")
file(DOWNLOAD
https://github.com/cpm-cmake/CPM.cmake/releases/download/v${CPM_DOWNLOAD_VERSION}/CPM.cmake
${CPM_DOWNLOAD_LOCATION}
)
endif()
include(${CPM_DOWNLOAD_LOCATION})