ref: 1639592368fc2dadc82d63f3be6f17ed0b554d71
dir: /cmake/OpusConfig.cmake/
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) set_property(GLOBAL PROPERTY C_STANDARD 99) if(MSVC) add_definitions(-D_CRT_SECURE_NO_WARNINGS) endif() include(CheckLibraryExists) check_library_exists(m floor "" HAVE_LIBM) if(HAVE_LIBM) list(APPEND OPUS_REQUIRED_LIBRARIES m) 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(CheckFunctionExists) check_function_exists(lrintf HAVE_LRINTF) check_function_exists(lrint HAVE_LRINT) 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()