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cmake_minimum_required(VERSION 3.1..3.18)
# Policies
# Include file check macros honor CMAKE_REQUIRED_LIBRARIES, CMake >= 3.12
if(POLICY CMP0075)
cmake_policy(SET CMP0075 NEW)
endif()
# MSVC runtime library flags are selected by an abstraction, CMake >= 3.15
# This policy still need to be set even with cmake_minimum_required() command above.
if(POLICY CMP0091)
if(DEFINED CMAKE_MSVC_RUNTIME_LIBRARY)
cmake_policy(SET CMP0091 NEW)
else()
cmake_policy(SET CMP0091 OLD)
endif()
endif()
project(libsamplerate VERSION 0.2.1 LANGUAGES C)
# Configuration
if(CMAKE_SOURCE_DIR STREQUAL CMAKE_CURRENT_SOURCE_DIR)
set(IS_ROOT_PROJECT ON)
else()
set(IS_ROOT_PROJECT OFF)
endif()
option(LIBSAMPLERATE_EXAMPLES "Enable to generate examples" ${IS_ROOT_PROJECT})
option(LIBSAMPLERATE_INSTALL "Enable to add install directives" ${IS_ROOT_PROJECT})
list(APPEND CMAKE_MODULE_PATH ${PROJECT_SOURCE_DIR}/cmake)
set(CMAKE_C_STANDARD 99)
set(CMAKE_C_STANDARD_REQUIRED TRUE)
include(TestBigEndian)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckLibraryExists)
include(CheckSymbolExists)
include(GNUInstallDirs)
if(DEFINED LIBSAMPLERATE_TESTS)
message(DEPRECATION "LIBSAMPLERATE_TESTS option deprecated, use BUILD_TESTING option instead.")
set(BUILD_TESTING ${LIBSAMPLERATE_TESTS})
endif()
include(CTest)
add_definitions(-DHAVE_CONFIG_H)
include_directories(${PROJECT_BINARY_DIR})
if(MSVC)
add_definitions(-D_CRT_SECURE_NO_WARNINGS)
endif()
if(NOT WIN32)
find_library(MATH_LIBRARY m)
if(MATH_LIBRARY)
set(LIBM_REQUIRED 1)
if(LIBM_REQUIRED)
list(APPEND CMAKE_REQUIRED_LIBRARIES m)
if(LIBM_REQUIRED)
link_libraries(${MATH_LIBRARY})
endif()
endif()
endif()
endif()
if(CMAKE_C_COMPILER_ID STREQUAL "GNU" OR CMAKE_C_COMPILER_ID MATCHES "Clang")
option(LIBSAMPLERATE_ENABLE_SANITIZERS "Enable ASAN and UBSAN" OFF)
if(LIBSAMPLERATE_ENABLE_SANITIZERS)
# Use ASAN and UBSAN, make it fail on any error, improve stack traces
set(sanitizer_flags -fsanitize=address,undefined -fno-sanitize-recover=all -fno-omit-frame-pointer)
add_compile_options(${sanitizer_flags})
string(REPLACE ";" " " sanitizer_flags "${sanitizer_flags}")
string(APPEND CMAKE_EXE_LINKER_FLAGS " ${sanitizer_flags}")
string(APPEND CMAKE_MODULE_LINKER_FLAGS " ${sanitizer_flags}")
string(APPEND CMAKE_SHARED_LINKER_FLAGS " ${sanitizer_flags}")
endif()
endif()
test_big_endian(CPU_IS_BIG_ENDIAN)
if(CPU_IS_BIG_ENDIAN)
set(CPU_IS_LITTLE_ENDIAN 0)
else()
set(CPU_IS_LITTLE_ENDIAN 1)
endif()
check_include_file(stdbool.h HAVE_STDBOOL_H)
check_include_file(unistd.h HAVE_UNISTD_H)
# For examples and tests
if(LIBSAMPLERATE_EXAMPLES OR BUILD_TESTING)
find_package(SndFile)
set(HAVE_SNDFILE ${SndFile_FOUND})
endif()
# SampleRate library
add_subdirectory(src)
# Tests
# BUILD_TESTING is declared by CTest module and is ON by default
if(BUILD_TESTING)
add_subdirectory(tests)
endif()
# Examples
if(LIBSAMPLERATE_EXAMPLES)
add_subdirectory(examples)
endif()
configure_file(config.h.cmake config.h)
if(LIBSAMPLERATE_INSTALL)
add_subdirectory(docs)
endif()
# Packaging support
# See https://cmake.org/cmake/help/v3.12/release/3.12.html#cpack
if(CMAKE_VERSION VERSION_LESS 3.12)
set(CPACK_PACKAGE_VERSION_MAJOR ${PROJECT_VERSION_MAJOR})
set(CPACK_PACKAGE_VERSION_MINOR ${PROJECT_VERSION_MINOR})
set(CPACK_PACKAGE_VERSION_PATCH ${PROJECT_VERSION_PATCH})
endif()
include(CPack)
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