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Created a more generalized helper module

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I think this will help glfw's cmake build system be more readable and adaptable to changes to cmake.
This commit is contained in:
hdf89shfdfs 2020-11-13 07:36:41 -05:00
parent 5f2d8fb9a4
commit 8ab920ea67
2 changed files with 33 additions and 16 deletions
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32
CMake/glfw_msvc_runtime_library.cmake → CMake/glfw.cmake
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@ -1,7 +1,13 @@
if (DEFINED glfw_msvc_runtime_library_include_guard)
# This cmake module is meant to hold helper functions/macros
# that make maintaining the cmake build system much easier.
# This is especially helpful since glfw needs to provide coverage
# for multiple versions of cmake.
#
# Any functions/macros should have a glfw_* prefix to avoid problems
if (DEFINED glfw_include_guard)
return()
endif()
set(glfw_msvc_runtime_library_include_guard ON)
set(glfw_include_guard ON)
include(CMakeDependentOption)
@ -53,3 +59,25 @@ macro(glfw_msvc_runtime_library GLFW_STANDALONE)
endif()
endif()
endmacro()
# Despite the fact that glfw is using a range to cover newer projects
# cmake_minimum_required(VERSION 3.1...3.X FATAL_ERROR)
# This still doesn't cover all cmake versions since this range functionality was only added
# in cmake 3.12, so explicitly setting these policies allow for more projects to work properly
# in between cmake 3.1 -> 3.11
macro(glfw_set_new_policies)
if (${CMAKE_VERSION} VERSION_LESS "3.12")
if (POLICY CMP0054)
cmake_policy(SET CMP0054 NEW)
endif()
if (POLICY CMP0069)
cmake_policy(SET CMP0069 NEW)
endif()
if (POLICY CMP0077)
cmake_policy(SET CMP0077 NEW)
endif()
endif()
endmacro()

17
CMakeLists.txt
View File

@ -1,22 +1,14 @@
cmake_minimum_required(VERSION 3.1...3.17 FATAL_ERROR)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/Cmake/")
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake/modules")
include(glfw)
project(GLFW VERSION 3.4.0 LANGUAGES C)
set(CMAKE_LEGACY_CYGWIN_WIN32 OFF)
if (POLICY CMP0054)
cmake_policy(SET CMP0054 NEW)
endif()
if (POLICY CMP0069)
cmake_policy(SET CMP0069 NEW)
endif()
if (POLICY CMP0077)
cmake_policy(SET CMP0077 NEW)
endif()
glfw_set_new_policies()
set_property(GLOBAL PROPERTY USE_FOLDERS ON)
@ -33,7 +25,6 @@ option(GLFW_VULKAN_STATIC "Assume the Vulkan loader is linked with the applicati
include(GNUInstallDirs)
include(CMakeDependentOption)
include(glfw_msvc_runtime_library)
cmake_dependent_option(GLFW_USE_OSMESA "Use OSMesa for offscreen context creation" OFF
"UNIX" OFF)
@ -60,8 +51,6 @@ if (GLFW_VULKAN_STATIC)
set(_GLFW_VULKAN_STATIC 1)
endif()
list(APPEND CMAKE_MODULE_PATH "${GLFW_SOURCE_DIR}/CMake/modules")
find_package(Threads REQUIRED)
if (GLFW_BUILD_DOCS)