134 lines
4.0 KiB
CMake
134 lines
4.0 KiB
CMake
# Findglm.cmake
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#
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# Finds the GLM library
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#
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# This will define the following variables
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#
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# glm_FOUND
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# glm_INCLUDE_DIRS
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#
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# and the following imported targets
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#
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# glm::glm
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#
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# Try to find the package using pkg-config first
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find_package(PkgConfig QUIET)
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if(PKG_CONFIG_FOUND)
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pkg_check_modules(PC_glm QUIET glm)
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endif()
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# Find the include directory
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find_path(glm_INCLUDE_DIR
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NAMES glm/glm.hpp
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PATHS
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${PC_glm_INCLUDE_DIRS}
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/usr/include
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/usr/local/include
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$ENV{VULKAN_SDK}/include
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${ANDROID_NDK}/sources/third_party
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../external
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../third_party
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../attachments/external
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../attachments/third_party
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../attachments/include
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../../external
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../../third_party
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${CMAKE_CURRENT_SOURCE_DIR}/../../../../../../../include
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PATH_SUFFIXES glm
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)
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# If the include directory wasn't found, use FetchContent to download and build
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if(NOT glm_INCLUDE_DIR)
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# If not found, use FetchContent to download and build
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include(FetchContent)
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message(STATUS "GLM not found, fetching from GitHub...")
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FetchContent_Declare(
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glm
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GIT_REPOSITORY https://github.com/g-truc/glm.git
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GIT_TAG 0.9.9.8 # Use a specific tag for stability
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)
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# Define a function to update the CMake minimum required version
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function(update_glm_cmake_version)
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# Get the source directory
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FetchContent_GetProperties(glm SOURCE_DIR glm_SOURCE_DIR)
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# Update the minimum required CMake version
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file(READ "${glm_SOURCE_DIR}/CMakeLists.txt" GLM_CMAKE_CONTENT)
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string(REPLACE "cmake_minimum_required(VERSION 3.2"
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"cmake_minimum_required(VERSION 3.5"
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GLM_CMAKE_CONTENT "${GLM_CMAKE_CONTENT}")
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file(WRITE "${glm_SOURCE_DIR}/CMakeLists.txt" "${GLM_CMAKE_CONTENT}")
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endfunction()
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# Set policy to suppress the deprecation warning
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if(POLICY CMP0169)
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cmake_policy(SET CMP0169 OLD)
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endif()
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# First, declare and populate the content
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FetchContent_GetProperties(glm)
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if(NOT glm_POPULATED)
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FetchContent_Populate(glm)
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# Update the CMake version before making it available
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update_glm_cmake_version()
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endif()
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# Now make it available (this will process the CMakeLists.txt)
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FetchContent_MakeAvailable(glm)
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# Get the include directory from the target
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if(TARGET glm)
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get_target_property(glm_INCLUDE_DIR glm INTERFACE_INCLUDE_DIRECTORIES)
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if(NOT glm_INCLUDE_DIR)
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# If we can't get the include directory from the target, use the source directory
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set(glm_INCLUDE_DIR ${glm_SOURCE_DIR})
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endif()
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else()
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# GLM might not create a target, so use the source directory
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set(glm_INCLUDE_DIR ${glm_SOURCE_DIR})
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endif()
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endif()
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# Set the variables
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(glm
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REQUIRED_VARS glm_INCLUDE_DIR
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)
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if(glm_FOUND)
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set(glm_INCLUDE_DIRS ${glm_INCLUDE_DIR})
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# Create an imported target
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if(NOT TARGET glm::glm)
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add_library(glm::glm INTERFACE IMPORTED)
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set_target_properties(glm::glm PROPERTIES
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INTERFACE_INCLUDE_DIRECTORIES "${glm_INCLUDE_DIRS}"
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)
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endif()
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elseif(TARGET glm)
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# If find_package_handle_standard_args failed but we have a glm target from FetchContent
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# Create an alias for the glm target
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if(NOT TARGET glm::glm)
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add_library(glm::glm ALIAS glm)
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endif()
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# Set variables to indicate that glm was found
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set(glm_FOUND TRUE)
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set(GLM_FOUND TRUE)
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# Set include directories
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get_target_property(glm_INCLUDE_DIR glm INTERFACE_INCLUDE_DIRECTORIES)
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if(glm_INCLUDE_DIR)
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set(glm_INCLUDE_DIRS ${glm_INCLUDE_DIR})
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else()
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# If we can't get the include directory from the target, use the source directory
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set(glm_INCLUDE_DIR ${glm_SOURCE_DIR})
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set(glm_INCLUDE_DIRS ${glm_INCLUDE_DIR})
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endif()
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endif()
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mark_as_advanced(glm_INCLUDE_DIR)
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