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CMake: Move reusable code to new cmake/ directory

This commit is contained in:
Ahmad Fatoum 2018-05-20 20:08:43 +02:00
parent ae26e083b4
commit ff55af14f9
No known key found for this signature in database
GPG Key ID: C3EAC3DE9321D59B
4 changed files with 38 additions and 34 deletions
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45
CMakeLists.txt
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@ -1,4 +1,5 @@
cmake_minimum_required(VERSION 3.0)
set(CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
# Config options
option(BUILD_EXAMPLES "Build the examples." ON)
@ -15,47 +16,25 @@ else()
set (CMAKE_C_STANDARD 99)
endif()
include(CheckCCompilerFlag)
function(add_if_flag_works flag)
CHECK_C_COMPILER_FLAG("${flag}" COMPILER_HAS_THOSE_TOGGLES)
set(outcome "Failed")
if(COMPILER_HAS_THOSE_TOGGLES)
foreach(var ${ARGN})
set(${var} "${flag} ${${var}}" PARENT_SCOPE)
endforeach()
set(outcome "works")
endif()
message(STATUS "Testing if ${flag} can be used -- ${outcome}")
endfunction()
add_if_flag_works(-Werror=pointer-arith CMAKE_C_FLAGS)
add_if_flag_works(-Werror=implicit-function-declaration CMAKE_C_FLAGS)
include(AddIfFlagCompiles)
add_if_flag_compiles(-Werror=pointer-arith CMAKE_C_FLAGS)
add_if_flag_compiles(-Werror=implicit-function-declaration CMAKE_C_FLAGS)
# src/external/jar_xm.h does shady stuff
add_if_flag_works(-fno-strict-aliasing CMAKE_C_FLAGS)
add_if_flag_compiles(-fno-strict-aliasing CMAKE_C_FLAGS)
message(STATUS "Testing if file system supports symlinks")
execute_process(
COMMAND ${CMAKE_COMMAND} -E create_symlink CMakeLists.txt "${CMAKE_CURRENT_BINARY_DIR}/TestingIfSymlinkWorks"
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
RESULT_VARIABLE FILESYSTEM_LACKS_SYMLINKS
)
If (FILESYSTEM_LACKS_SYMLINKS)
message(STATUS "Testing if file system supports symlinks -- unsupported")
else()
message(STATUS "Testing if file system supports symlinks -- supported")
endif()
include(CheckFileSystemSymlinkSupport)
if (ENABLE_ASAN)
add_if_flag_works(-fno-omit-frame-pointer CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
add_if_flag_works(-fsanitize=address CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
add_if_flag_compiles(-fno-omit-frame-pointer CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
add_if_flag_compiles(-fsanitize=address CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
endif()
if (ENABLE_UBSAN)
add_if_flag_works(-fno-omit-frame-pointer CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
add_if_flag_works(-fsanitize=undefined CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
add_if_flag_compiles(-fno-omit-frame-pointer CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
add_if_flag_compiles(-fsanitize=undefined CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
endif()
if (ENABLE_MSAN)
add_if_flag_works(-fno-omit-frame-pointer CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
add_if_flag_works(-fsanitize=memory CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
add_if_flag_compiles(-fno-omit-frame-pointer CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
add_if_flag_compiles(-fsanitize=memory CMAKE_C_FLAGS CMAKE_LINKER_FLAGS)
endif()
if (ENABLE_MSAN AND ENABLE_ASAN)

12
cmake/AddIfFlagCompiles.cmake Normal file
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@ -0,0 +1,12 @@
include(CheckCCompilerFlag)
function(add_if_flag_compiles flag)
CHECK_C_COMPILER_FLAG("${flag}" COMPILER_HAS_THOSE_TOGGLES)
set(outcome "Failed")
if(COMPILER_HAS_THOSE_TOGGLES)
foreach(var ${ARGN})
set(${var} "${flag} ${${var}}" PARENT_SCOPE)
endforeach()
set(outcome "compiles")
endif()
message(STATUS "Testing if ${flag} can be used -- ${outcome}")
endfunction()

13
cmake/CheckFileSystemSymlinkSupport.cmake Normal file
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@ -0,0 +1,13 @@
# Populates a ${FILESYSTEM_LACKS_SYMLINKS} variable
message(STATUS "Testing if file system supports symlinks")
execute_process(
COMMAND ${CMAKE_COMMAND} -E create_symlink CMakeLists.txt "${CMAKE_CURRENT_BINARY_DIR}/TestingIfSymlinkWorks"
WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
RESULT_VARIABLE FILESYSTEM_LACKS_SYMLINKS
)
If (FILESYSTEM_LACKS_SYMLINKS)
message(STATUS "Testing if file system supports symlinks -- unsupported")
else()
message(STATUS "Testing if file system supports symlinks -- supported")
endif()

2
src/CMakeLists.txt
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@ -1,7 +1,7 @@
# Setup the project and settings
project(raylib)
include(GNUInstallDirs)
set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../cmake")
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/../cmake")
set(PROJECT_VERSION 2.0.0)
set(API_VERSION 2)