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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()
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