sfizz/cmake/SfizzConfig.cmake

193 lines
7 KiB
CMake

include(CMakeDependentOption)
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(CheckCXXSourceCompiles)
include(GNUWarnings)
# C++14 is the minimum standard version required by Abseil LTS 20230125.1 and later, see
# https://github.com/abseil/abseil-cpp/releases/tag/20230125.1
set(CMAKE_CXX_STANDARD 14 CACHE STRING "C++ standard to be used")
set(CMAKE_C_STANDARD 99 CACHE STRING "C standard to be used")
# Export the compile_commands.json file
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
# Only install what's explicitely said
set(CMAKE_SKIP_INSTALL_ALL_DEPENDENCY true)
set(CMAKE_POSITION_INDEPENDENT_CODE ON)
set(CMAKE_CXX_VISIBILITY_PRESET hidden)
set(CMAKE_VISIBILITY_INLINES_HIDDEN ON)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/library/lib)
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/library/lib)
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/library/bin)
# Set C++ compatibility level
if(CMAKE_CXX_COMPILER_ID MATCHES "MSVC" AND CMAKE_CXX_STANDARD LESS 17)
set(CMAKE_CXX_STANDARD 17)
endif()
# Set build profiling options
if(SFIZZ_PROFILE_BUILD)
check_c_compiler_flag("-ftime-trace" SFIZZ_HAVE_CFLAG_FTIME_TRACE)
check_cxx_compiler_flag("-ftime-trace" SFIZZ_HAVE_CXXFLAG_FTIME_TRACE)
if(SFIZZ_HAVE_CFLAG_FTIME_TRACE)
add_compile_options("$<$<COMPILE_LANGUAGE:C>:-ftime-trace>")
endif()
if(SFIZZ_HAVE_CXXFLAG_FTIME_TRACE)
add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:-ftime-trace>")
endif()
endif()
# Process sources as UTF-8
if(MSVC)
add_compile_options("/utf-8")
endif()
# Define the math constants everywhere
if(WIN32)
add_compile_definitions(_USE_MATH_DEFINES)
endif()
# Set macOS compatibility level
if(APPLE)
set(CMAKE_OSX_DEPLOYMENT_TARGET "10.9")
endif()
# If using C++17, check if aligned-new has runtime support on the platform;
# on macOS, this depends on the deployment target.
if(CMAKE_CXX_STANDARD LESS 17)
# not necessary on older C++, it will call ordinary new and delete
set(SFIZZ_IMPLEMENT_CXX17_ALIGNED_NEW_SUPPORT FALSE)
else()
check_cxx_source_compiles("
struct Test { alignas(1024) int z; };
int main() { new Test; return 0; }
" SFIZZ_HAVE_CXX17_ALIGNED_NEW)
# if support is absent, sfizz will provide a substitute implementation
if(SFIZZ_HAVE_CXX17_ALIGNED_NEW)
set(SFIZZ_IMPLEMENT_CXX17_ALIGNED_NEW_SUPPORT FALSE)
else()
# on macOS, this mandatory flag tells that allocation functions are user-provided
check_cxx_compiler_flag("-faligned-allocation" SFIZZ_HAVE_CXXFLAG_FALIGNED_ALLOCATION)
if(SFIZZ_HAVE_CXXFLAG_FALIGNED_ALLOCATION)
add_compile_options("$<$<COMPILE_LANGUAGE:CXX>:-faligned-allocation>")
endif()
set(SFIZZ_IMPLEMENT_CXX17_ALIGNED_NEW_SUPPORT TRUE)
endif()
endif()
# Do not define macros `min` and `max`
if(WIN32)
add_compile_definitions(NOMINMAX)
endif()
# The variable CMAKE_SYSTEM_PROCESSOR is incorrect on Visual studio...
# see https://gitlab.kitware.com/cmake/cmake/issues/15170
if(NOT PROJECT_SYSTEM_PROCESSOR)
if(MSVC)
set(PROJECT_SYSTEM_PROCESSOR "${MSVC_CXX_ARCHITECTURE_ID}" CACHE STRING "" FORCE)
else()
set(PROJECT_SYSTEM_PROCESSOR "${CMAKE_SYSTEM_PROCESSOR}" CACHE STRING "" FORCE)
endif()
endif()
# Add required flags for the builds
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
gw_warn(-Wall -Wextra -Wno-multichar -Werror=return-type)
if(PROJECT_SYSTEM_PROCESSOR MATCHES "^(i.86|x86_64)$")
add_compile_options(-msse2)
elseif(PROJECT_SYSTEM_PROCESSOR MATCHES "^(arm.*)$")
add_compile_options(-mfpu=neon)
if(NOT ANDROID)
add_compile_options(-mfloat-abi=hard)
endif()
endif()
elseif(CMAKE_CXX_COMPILER_ID MATCHES "MSVC")
add_compile_options(/Zc:__cplusplus)
set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")
endif()
function(sfizz_enable_fast_math NAME)
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
target_compile_options("${NAME}" PRIVATE "-ffast-math")
elseif(MSVC)
target_compile_options("${NAME}" PRIVATE "/fp:fast")
endif()
endfunction()
# If we build with Clang, optionally use libc++. Enabled by default on Apple OS.
cmake_dependent_option(USE_LIBCPP "Use libc++ with clang" "${APPLE}"
"CMAKE_CXX_COMPILER_ID MATCHES Clang" OFF)
if(USE_LIBCPP)
add_compile_options(-stdlib=libc++)
add_link_options(-stdlib=libc++) # New command in CMake 3.13
add_link_options(-lc++abi)
endif()
include(GNUInstallDirs)
if(PROJECT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(PROJECT_IS_MAIN TRUE)
else()
set(PROJECT_IS_MAIN FALSE)
endif()
# Don't show build information when building a different project
function(show_build_info_if_needed)
if(PROJECT_IS_MAIN)
message(STATUS "
Project name: ${PROJECT_NAME}
C++ standard version: ${CMAKE_CXX_STANDARD}
Build type: ${CMAKE_BUILD_TYPE}
Build processor: ${PROJECT_SYSTEM_PROCESSOR}
Build using LTO: ${ENABLE_LTO}
Build as shared library: ${SFIZZ_SHARED}
Build JACK stand-alone client: ${SFIZZ_JACK}
Build render client: ${SFIZZ_RENDER}
Build benchmarks: ${SFIZZ_BENCHMARKS}
Build tests: ${SFIZZ_TESTS}
Build demos: ${SFIZZ_DEMOS}
Build devtools: ${SFIZZ_DEVTOOLS}
Use sndfile: ${SFIZZ_USE_SNDFILE}
Statically link sndfile: ${SFIZZ_SNDFILE_STATIC}
Use vcpkg: ${SFIZZ_USE_VCPKG}
Use clang libc++: ${USE_LIBCPP}
Release asserts: ${SFIZZ_RELEASE_ASSERTS}
Use system abseil-cpp: ${SFIZZ_USE_SYSTEM_ABSEIL}
Use system catch: ${SFIZZ_USE_SYSTEM_CATCH}
Use system cxxopts: ${SFIZZ_USE_SYSTEM_CXXOPTS}
Use system ghc-filesystem: ${SFIZZ_USE_SYSTEM_GHC_FS}
Use system kiss-fft: ${SFIZZ_USE_SYSTEM_KISS_FFT}
Use system pugixml: ${SFIZZ_USE_SYSTEM_PUGIXML}
Use system simde: ${SFIZZ_USE_SYSTEM_SIMDE}")
if(CMAKE_PROJECT_NAME STREQUAL "sfizz")
message(STATUS "
Use system lv2: ${SFIZZ_USE_SYSTEM_LV2}
Use system vst3sdk sources: ${SFIZZ_USE_SYSTEM_VST3SDK}
Build AU plug-in: ${PLUGIN_AU}
Build LV2 plug-in: ${PLUGIN_LV2}
Build LV2 user interface: ${PLUGIN_LV2_UI}
LV2 plugin-side CC automation ${PLUGIN_LV2_PSA}
Build Pure Data plug-in: ${PLUGIN_PUREDATA}
Build VST3 plug-in: ${PLUGIN_VST3}
AU destination directory: ${AU_PLUGIN_INSTALL_DIR}
LV2 destination directory: ${LV2_PLUGIN_INSTALL_DIR}
Pd destination directory: ${PD_PLUGIN_INSTALL_DIR}
VST3 destination directory: ${VST3_PLUGIN_INSTALL_DIR}")
endif()
message(STATUS "
Install prefix: ${CMAKE_INSTALL_PREFIX}
CXX Debug flags: ${CMAKE_CXX_FLAGS_DEBUG}
CXX Release flags: ${CMAKE_CXX_FLAGS_RELEASE}
CXX MinSize flags: ${CMAKE_CXX_FLAGS_MINSIZEREL}
CXX RelWithDebInfo flags: ${CMAKE_CXX_FLAGS_RELWITHDEBINFO}
")
endif()
endfunction()