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Allow in-tree build

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This commit is contained in:
Anonymous Maarten 2024-10-29 23:33:44 +01:00
parent 6647345be0
commit f543faf837
3 changed files with 24 additions and 16 deletions
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18
.gitignore vendored
View File

@ -29,15 +29,27 @@ __pycache__
*.rej
# for CMake
.cmake
CMakeFiles/
CMakeCache.txt
cmake_install.cmake
cmake_uninstall.cmake
SDL3ConfigVersion.cmake
.ninja_*
*.ninja
install_manifest.txt
*Targets.cmake
*Config.cmake
*ConfigVersion.cmake
CTestTestfile.cmake
Testing
compile_commands.json
.cache/
/include-config-*
/include-revision
/Makefile
.ninja_*
*.ninja
*.pc
test/*.test
wayland-generated-protocols
# for CLion
.idea

18
CMakeLists.txt
View File

@ -1,9 +1,5 @@
cmake_minimum_required(VERSION 3.16)
if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
message(FATAL_ERROR "Prevented in-tree build. Please create a build directory outside of the SDL source code and run \"cmake -S ${CMAKE_SOURCE_DIR} -B .\" from there")
endif()
# See docs/release_checklist.md
project(SDL3 LANGUAGES C VERSION "3.1.5")
@ -456,7 +452,7 @@ sdl_compile_definitions(PRIVATE "USING_GENERATED_CONFIG_H")
sdl_include_directories(
PRIVATE
"${SDL3_BINARY_DIR}/include-config-$<LOWER_CASE:$<CONFIG>>/build_config"
"${SDL3_BINARY_DIR}/include"
"${SDL3_BINARY_DIR}/include-revision"
"${SDL3_SOURCE_DIR}/include"
)
# Note: The clang toolset for Visual Studio does not support the '-idirafter' option.
@ -3050,11 +3046,11 @@ endif()
# config variables may contain generator expression, so we need to generate SDL_build_config.h in 2 steps:
# 1. replace all `#cmakedefine`'s and `@abc@`
configure_file("${SDL3_SOURCE_DIR}/include/build_config/SDL_build_config.h.cmake"
"${SDL3_BINARY_DIR}/SDL_build_config.h.intermediate")
"${SDL3_BINARY_DIR}/CMakeFiles/SDL_build_config.h.intermediate")
# 2. generate SDL_build_config.h in an build_type-dependent folder (which should be first in the include search path)
file(GENERATE
OUTPUT "${SDL3_BINARY_DIR}/include-config-$<LOWER_CASE:$<CONFIG>>/build_config/SDL_build_config.h"
INPUT "${SDL3_BINARY_DIR}/SDL_build_config.h.intermediate"
INPUT "${SDL3_BINARY_DIR}/CMakeFiles/SDL_build_config.h.intermediate"
)
file(GLOB SDL3_INCLUDE_FILES "${SDL3_SOURCE_DIR}/include/SDL3/*.h")
@ -3078,9 +3074,9 @@ if(NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/REVISION.txt")
set(SDL_REVISION "SDL3-${SDL_REVISION_CENTER}")
endif()
execute_process(COMMAND "${CMAKE_COMMAND}" -E make_directory "${SDL3_BINARY_DIR}/include/SDL3")
configure_file(include/build_config/SDL_revision.h.cmake include/SDL3/SDL_revision.h @ONLY)
list(APPEND SDL3_INCLUDE_FILES "${SDL3_BINARY_DIR}/include/SDL3/SDL_revision.h")
execute_process(COMMAND "${CMAKE_COMMAND}" -E make_directory "${SDL3_BINARY_DIR}/include-revision/SDL3")
configure_file(include/build_config/SDL_revision.h.cmake include-revision/SDL3/SDL_revision.h @ONLY)
list(APPEND SDL3_INCLUDE_FILES "${SDL3_BINARY_DIR}/include-revision/SDL3/SDL_revision.h")
if(SDL_FRAMEWORK)
# With Apple frameworks, headers in the PUBLIC_HEADER property also need to be added as sources
@ -3277,7 +3273,7 @@ add_library(SDL3::Headers ALIAS SDL3_Headers)
set_property(TARGET SDL3_Headers PROPERTY EXPORT_NAME "Headers")
target_include_directories(SDL3_Headers
INTERFACE
"$<BUILD_INTERFACE:${SDL3_BINARY_DIR}/include>"
"$<BUILD_INTERFACE:${SDL3_BINARY_DIR}/include-revision>"
"$<BUILD_INTERFACE:${SDL3_SOURCE_DIR}/include>"
)
if(SDL_FRAMEWORK)

4
cmake/macros.cmake
View File

@ -299,8 +299,8 @@ function(check_linker_supports_version_file VAR)
set(LINKER_SUPPORTS_VERSION_SCRIPT FALSE)
else()
cmake_push_check_state(RESET)
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/dummy.sym" "n_0 {\n global:\n func;\n local: *;\n};\n")
list(APPEND CMAKE_REQUIRED_LINK_OPTIONS "-Wl,--version-script=${CMAKE_CURRENT_BINARY_DIR}/dummy.sym")
file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/dummy.sym" "n_0 {\n global:\n func;\n local: *;\n};\n")
list(APPEND CMAKE_REQUIRED_LINK_OPTIONS "-Wl,--version-script=${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/dummy.sym")
check_c_source_compiles("int func(void) {return 0;} int main(int argc,char*argv[]){(void)argc;(void)argv;return func();}" LINKER_SUPPORTS_VERSION_SCRIPT FAIL_REGEX "(unsupported|syntax error|unrecognized option)")
cmake_pop_check_state()
endif()