mirror of
https://github.com/obsproject/obs-studio.git
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eb3d9963a0
Compiler extensions are disabled before the first `project` call to force CMake into considering compilers to not support GNU extensions (even though clang and gcc do). Also sets common clang compiler options so they can be used across all supported platforms. `openmp-simd` support is enabled by default as there is no performance penalty on x86_64 systems and intrinsics are enabled on arm64. Also implements CMake's `CMAKE_COMPILE_WARNING_AS_ERROR` flag to enable the desired behavior and configuration time.
72 lines
2.4 KiB
CMake
72 lines
2.4 KiB
CMake
# OBS CMake bootstrap module
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include_guard(GLOBAL)
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# Enable automatic PUSH and POP of policies to parent scope
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if(POLICY CMP0011)
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cmake_policy(SET CMP0011 NEW)
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endif()
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# Enable distinction between Clang and AppleClang
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if(POLICY CMP0025)
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cmake_policy(SET CMP0025 NEW)
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endif()
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# Enable strict checking of "break()" usage
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if(POLICY CMP0055)
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cmake_policy(SET CMP0055 NEW)
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endif()
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# Honor visibility presets for all target types (executable, shared, module, static)
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if(POLICY CMP0063)
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cmake_policy(SET CMP0063 NEW)
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endif()
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# Disable export function calls to populate package registry by default
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if(POLICY CMP0090)
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cmake_policy(SET CMP0090 NEW)
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endif()
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# Prohibit in-source builds
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if("${CMAKE_CURRENT_BINARY_DIR}" STREQUAL "${CMAKE_CURRENT_SOURCE_DIR}")
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message(FATAL_ERROR "In-source builds of OBS are not supported. "
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"Specify a build directory via 'cmake -S <SOURCE DIRECTORY> -B <BUILD_DIRECTORY>' instead.")
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file(REMOVE_RECURSE "${CMAKE_CURRENT_SOURCE_DIR}/CMakeCache.txt" "${CMAKE_CURRENT_SOURCE_DIR}/CMakeFiles")
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endif()
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# Use folders for source file organization with IDE generators (Visual Studio/Xcode)
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set_property(GLOBAL PROPERTY USE_FOLDERS TRUE)
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# Set default global project variables
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set(OBS_COMPANY_NAME "OBS Project")
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set(OBS_PRODUCT_NAME "OBS Studio")
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set(OBS_WEBSITE "https://www.obsproject.com")
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set(OBS_COMMENTS "Free and open source software for video recording and live streaming")
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set(OBS_LEGAL_COPYRIGHT "(C) Lain Bailey")
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set(OBS_CMAKE_VERSION 3.0.0)
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# Configure default version strings
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set(_obs_default_version "0" "0" "1")
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set(_obs_release_candidate "0" "0" "0" "0")
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set(_obs_beta "0" "0" "0" "0")
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# Add common module directories to default search path
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list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/common" "${CMAKE_CURRENT_SOURCE_DIR}/cmake/finders")
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include(versionconfig)
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include(buildnumber)
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include(osconfig)
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# Allow selection of common build types via UI
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if(NOT CMAKE_GENERATOR MATCHES "(Xcode|Visual Studio .+)")
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set(CMAKE_BUILD_TYPE
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"RelWithDebInfo"
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CACHE STRING "OBS build type [Release, RelWithDebInfo, Debug, MinSizeRel]" FORCE)
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set_property(CACHE CMAKE_BUILD_TYPE PROPERTY STRINGS Release RelWithDebInfo Debug MinSizeRel)
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endif()
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# Disable exports automatically going into the CMake package registry
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set(CMAKE_EXPORT_PACKAGE_REGISTRY FALSE)
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# Enable default inclusion of targets' source and binary directory
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set(CMAKE_INCLUDE_CURRENT_DIR TRUE)
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