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cmake_minimum_required(VERSION 3.24)
project(daw VERSION 0.0.1 LANGUAGES C)
# We really don't want any in-source builds
set(CMAKE_DISABLE_IN_SOURCE_BUILD ON CACHE BOOL "Prevents cmake -S. -B.")
set(CMAKE_DISABLE_SOURCE_CHANGES ON CACHE BOOL "Prevent writing files to CMAKE_SOURCE_DIR under configure")
# Check if we are used as a sub project/module or not
if(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
set(NOT_SUBPROJECT ON)
else()
set(NOT_SUBPROJECT OFF)
endif()
include(CMakeDependentOption)
option(ASAN "Enable address sanitizer. Only enabled when DAW_BUILD_DEBUG=ON")
option(UBSAN "Enable undefined behaviour sanitizer. Only enabled when DAW_BUILD_DEBUG=ON")
cmake_dependent_option(DAW_BUILD_DEBUG
"Compile daw engine with debugging features" ON
"CMAKE_BUILD_TYPE STREQUAL Debug" OFF)
cmake_dependent_option(DAW_BUILD_HOTRELOAD
"Compile daw engine with hot reloading enabled" ON
"NOT CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME;CMAKE_BUILD_TYPE STREQUAL Debug;NOT WIN32;BUILD_SHARED_LIBS" OFF)
cmake_dependent_option(DAW_BUILD_ASAN
"Compile daw engine with address sanitizer (asan)" ON
"DAW_BUILD_DEBUG;ASAN" OFF)
cmake_dependent_option(DAW_BUILD_UBSAN
"Compile daw engine with undefined behaviour sanitizer (ubsan)" ON
"DAW_BUILD_DEBUG;UBSAN" OFF)
# unused
cmake_dependent_option(DAW_BUILD_TOOLS
"Build tools to manipulate a daw project" ON
"CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME" OFF)
if("${CMAKE_BUILD_TYPE}" STREQUAL "Release")
message("Enabling LTO")
set(${CMAKE_INTERPROCEDURAL_OPTIMIZATION} TRUE)
endif()
if(DAW_BUILD_DEBUG AND NOT_SUBPROJECT)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
endif()
if(DAW_BUILD_UBSAN AND DAW_BUILD_ASAN)
message(FATAL_ERROR "You cannot build both asan and ubsan")
endif()
if(DAW_BUILD_DEBUG)
set(BUILD_OPTS -Og -ggdb3 -fno-omit-frame-pointer)
else()
set(BUILD_OPTS -O2 -flto=auto -fuse-linker-plugin -ffat-lto-objects
-funroll-loops -ffast-math -fno-signed-zeros -fno-trapping-math
-ffunction-sections -fdata-sections)
endif()
##
set(ENGINE_SOURCES
src/btree.c
src/dltools.c
src/engine.c
src/fov.c
src/hashmap.c
src/input.c
src/logging.c
src/memory.c
src/rendering.c
src/stack.c
src/state.c
src/ui_positioning.c
src/ui_rendering.c
src/utils.c
src/vector.c
)
add_compile_options(${RELEASE_OPTS})
add_link_options(${RELEASE_OPTS})
add_library(daw
${ENGINE_SOURCES})
target_include_directories(daw PUBLIC
include ${CMAKE_BINARY_DIR}/include ${ENGINE_INCLUDE})
target_link_libraries(${PROJECT_NAME}
SDL2 SDL2_image SDL2_ttf
$<$<NOT:$<PLATFORM_ID:Windows>>:m>
$<$<BOOL:${DAW_BUILD_HOTRELOAD}>:dl>
$<$<AND:$<NOT:$<C_COMPILER_ID:MSVC>>,$<BOOL:${DAW_BUILD_UBSAN}>>:ubsan>
)
target_compile_features(${PROJECT_NAME} PRIVATE c_std_99)
set_property(TARGET ${PROJECT_NAME} PROPERTY POSITION_INDEPENDENT_CODE ON)
if(DAW_BUILD_ASAN AND NOT C_COMPILER_ID STREQUAL MSVC)
add_compile_options(-fsanitize=address -fsanitize=leak -fsanitize-address-use-after-scope)
add_link_options(-fsanitize=address -fsanitize=leak -fsanitize-address-use-after-scope)
endif()
if(DAW_BUILD_UBSAN AND NOT C_COMPILER_ID STREQUAL MSVC)
add_compile_options(-fsanitize=undefined -fsanitize-undefined-trap-on-error -fno-sanitize-recover)
add_link_options(-fsanitize=undefined -fsanitize-undefined-trap-on-error -fno-sanitize-recover)
endif()
target_compile_options(${PROJECT_NAME} PUBLIC
$<$<NOT:$<C_COMPILER_ID:MSVC>>:-Wall -Wextra>
# Dont be pedantic when using hot reloading.
$<$<AND:$<NOT:$<C_COMPILER_ID:MSVC>>,$<NOT:$<BOOL:${DAW_BUILD_HOTRELOAD}>>>:-pedantic>
$<$<C_COMPILER_ID:MSVC>:/W4>
# Debug related flags. sorry windows, you're just not that important.
)
target_compile_definitions(${PROJECT_NAME} PUBLIC
$<$<BOOL:${DAW_BUILD_DEBUG}>:_DEBUG>
$<$<BOOL:${DAW_BUILD_HOTRELOAD}>:DAW_BUILD_HOTRELOAD>
)
configure_file(${CMAKE_CURRENT_LIST_DIR}/tools/cmake/list_of_states.h.in
${CMAKE_BINARY_DIR}/include/states/list_of_states.h)
configure_file(${CMAKE_CURRENT_LIST_DIR}/tools/cmake/all_states.h.in
${CMAKE_BINARY_DIR}/include/states/all_states.h)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/tools/cmake")
if (NOT NOT_SUBPROJECT)
set(CMAKE_MODULE_PATH "${CMAKE_MODULE_PATH}" PARENT_SCOPE)
endif()
include(DawAddState)
message("Configured ${PROJECT_NAME} ${PROJECT_VERSION}")
message("Build type: ${CMAKE_BUILD_TYPE}")
message("enable debug: ${DAW_BUILD_DEBUG}")
message("enable hotreload: ${DAW_BUILD_HOTRELOAD}")
message("enable asan: ${DAW_BUILD_ASAN}")
message("enable ubsan: ${DAW_BUILD_UBSAN}")
message("build tools: ${DAW_BUILD_TOOLS}")
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