| if(__opus_config) |
| return() |
| endif() |
| set(__opus_config INCLUDED) |
| |
| include(OpusFunctions) |
| |
| configure_file(cmake/config.h.cmake.in config.h @ONLY) |
| add_definitions(-DHAVE_CONFIG_H) |
| |
| set_property(GLOBAL PROPERTY USE_FOLDERS ON) |
| |
| if(MSVC) |
| # For compilers that have no notion of a C standard level, |
| # such as Microsoft Visual C++ before VS 16.7, |
| # this property has no effect. |
| set(CMAKE_C_STANDARD 11) |
| else() |
| set(CMAKE_C_STANDARD 99) |
| endif() |
| |
| if(MSVC) |
| add_definitions(-D_CRT_SECURE_NO_WARNINGS) |
| endif() |
| |
| include(CFeatureCheck) |
| c_feature_check(VLA) |
| |
| include(CheckIncludeFile) |
| check_include_file(alloca.h HAVE_ALLOCA_H) |
| |
| include(CheckSymbolExists) |
| if(HAVE_ALLOCA_H) |
| add_definitions(-DHAVE_ALLOCA_H) |
| check_symbol_exists(alloca "alloca.h" USE_ALLOCA_SUPPORTED) |
| else() |
| check_symbol_exists(alloca "stdlib.h;malloc.h" USE_ALLOCA_SUPPORTED) |
| endif() |
| |
| include(CMakePushCheckState) |
| cmake_push_check_state(RESET) |
| include(CheckLibraryExists) |
| check_library_exists(m floor "" HAVE_LIBM) |
| if(HAVE_LIBM) |
| list(APPEND OPUS_REQUIRED_LIBRARIES m) |
| set(CMAKE_REQUIRED_LIBRARIES m) |
| endif() |
| |
| check_symbol_exists(lrintf "math.h" HAVE_LRINTF) |
| check_symbol_exists(lrint "math.h" HAVE_LRINT) |
| cmake_pop_check_state() |
| |
| if(CMAKE_SYSTEM_PROCESSOR MATCHES "(i[0-9]86|x86|X86|amd64|AMD64|x86_64)") |
| if(CMAKE_SIZEOF_VOID_P EQUAL 8) |
| set(OPUS_CPU_X64 1) |
| else() |
| set(OPUS_CPU_X86 1) |
| endif() |
| elseif(CMAKE_SYSTEM_PROCESSOR MATCHES "(arm|aarch64)") |
| set(OPUS_CPU_ARM 1) |
| endif() |
| |
| if(NOT OPUS_DISABLE_INTRINSICS) |
| opus_supports_cpu_detection(RUNTIME_CPU_CAPABILITY_DETECTION) |
| endif() |
| |
| if(OPUS_CPU_X86 OR OPUS_CPU_X64 AND NOT OPUS_DISABLE_INTRINSICS) |
| opus_detect_sse(COMPILER_SUPPORT_SIMD) |
| elseif(OPUS_CPU_ARM AND NOT OPUS_DISABLE_INTRINSICS) |
| opus_detect_neon(COMPILER_SUPPORT_NEON) |
| if(COMPILER_SUPPORT_NEON) |
| option(OPUS_USE_NEON "Option to enable NEON" ON) |
| option(OPUS_MAY_HAVE_NEON "Does runtime check for neon support" ON) |
| option(OPUS_PRESUME_NEON "Assume target CPU has NEON support" OFF) |
| if(CMAKE_SYSTEM_PROCESSOR MATCHES "aarch64") |
| set(OPUS_PRESUME_NEON ON) |
| elseif(CMAKE_SYSTEM_NAME MATCHES "iOS") |
| set(OPUS_PRESUME_NEON ON) |
| endif() |
| endif() |
| endif() |
| |
| if(MSVC) |
| check_flag(FAST_MATH /fp:fast) |
| check_flag(STACK_PROTECTOR /GS) |
| check_flag(STACK_PROTECTOR_DISABLED /GS-) |
| else() |
| check_flag(FAST_MATH -ffast-math) |
| check_flag(STACK_PROTECTOR -fstack-protector-strong) |
| check_flag(HIDDEN_VISIBILITY -fvisibility=hidden) |
| set(FORTIFY_SOURCE_SUPPORTED 1) |
| endif() |
| |
| if(MINGW) |
| # For MINGW we need to link ssp lib for security features such as |
| # stack protector and fortify_sources |
| check_library_exists(ssp __stack_chk_fail "" HAVE_LIBSSP) |
| if(NOT HAVE_LIBSSP) |
| message(WARNING "Could not find libssp in MinGW, disabling STACK_PROTECTOR and FORTIFY_SOURCE") |
| set(STACK_PROTECTOR_SUPPORTED 0) |
| set(FORTIFY_SOURCE_SUPPORTED 0) |
| endif() |
| endif() |
| |
| if(NOT MSVC) |
| set(WARNING_LIST -Wall -W -Wstrict-prototypes -Wextra -Wcast-align -Wnested-externs -Wshadow) |
| include(CheckCCompilerFlag) |
| foreach(WARNING_FLAG ${WARNING_LIST}) |
| string(REPLACE - "" WARNING_VAR ${WARNING_FLAG}) |
| check_c_compiler_flag(${WARNING_FLAG} ${WARNING_VAR}_SUPPORTED) |
| if(${WARNING_VAR}_SUPPORTED) |
| add_compile_options(${WARNING_FLAG}) |
| endif() |
| endforeach() |
| endif() |
