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# 3.1 is OK for most parts. However:
# 3.3 is needed in src/libFLAC
# 3.5 is needed in src/libFLAC/ia32
# 3.9 is needed in 'doc' because of doxygen_add_docs()
cmake_minimum_required(VERSION 3.5)
if(NOT (CMAKE_BUILD_TYPE OR CMAKE_CONFIGURATION_TYPES OR DEFINED ENV{CFLAGS} OR DEFINED ENV{CXXFLAGS}))
set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, options are: None Debug Release RelWithDebInfo")
endif()
project(FLAC VERSION 1.3.3) # HOMEPAGE_URL "https://www.xiph.org/flac/")
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
option(BUILD_CXXLIBS "Build libFLAC++" ON)
option(BUILD_PROGRAMS "Build and install programs" ON)
option(BUILD_EXAMPLES "Build and install examples" ON)
option(BUILD_DOCS "Build and install doxygen documents" ON)
option(WITH_STACK_PROTECTOR "Enable GNU GCC stack smash protection" ON)
option(INSTALL_MANPAGES "Install MAN pages" ON)
option(INSTALL_PKGCONFIG_MODULES "Install PkgConfig modules" ON)
option(INSTALL_CMAKE_CONFIG_MODULE "Install CMake package-config module" ON)
option(WITH_OGG "ogg support (default: test for libogg)" ON)
set(VERSION ${PROJECT_VERSION})
if(WITH_OGG)
find_package(Ogg REQUIRED)
set(OGG_PACKAGE "ogg")
endif()
find_package(Iconv)
set(HAVE_ICONV ${Iconv_FOUND})
if(CMAKE_C_COMPILER_ID MATCHES "GNU|Clang")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wextra -Wstrict-prototypes -Wmissing-prototypes -Waggregate-return -Wcast-align -Wnested-externs -Wshadow -Wundef -Wmissing-declarations -Winline")
set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} -O3 -funroll-loops")
endif()
if(CMAKE_CXX_COMPILER_ID MATCHES "GNU|Clang")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wcast-align -Wshadow -Wwrite-strings -Wctor-dtor-privacy -Wnon-virtual-dtor -Wreorder -Wsign-promo -Wundef")
endif()
include(CMakePackageConfigHelpers)
include(CPack)
include(CTest)
include(CheckCCompilerFlag)
include(CheckCXXCompilerFlag)
include(CheckSymbolExists)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckCSourceCompiles)
include(CheckCXXSourceCompiles)
include(GNUInstallDirs)
include(UseSystemExtensions)
include(TestBigEndian)
check_include_file("byteswap.h" HAVE_BYTESWAP_H)
check_include_file("inttypes.h" HAVE_INTTYPES_H)
check_include_file("stdint.h" HAVE_STDINT_H)
if(MSVC)
check_include_file("intrin.h" FLAC__HAS_X86INTRIN)
else()
check_include_file("x86intrin.h" FLAC__HAS_X86INTRIN)
endif()
check_function_exists(fseeko HAVE_FSEEKO)
check_c_source_compiles("int main() { return __builtin_bswap16 (0) ; }" HAVE_BSWAP16)
check_c_source_compiles("int main() { return __builtin_bswap32 (0) ; }" HAVE_BSWAP32)
test_big_endian(CPU_IS_BIG_ENDIAN)
check_c_compiler_flag(-Werror HAVE_WERROR_FLAG)
check_c_compiler_flag(-Wdeclaration-after-statement HAVE_DECL_AFTER_STMT_FLAG)
check_c_compiler_flag(-mstackrealign HAVE_STACKREALIGN_FLAG)
check_cxx_compiler_flag(-Weffc++ HAVE_WEFFCXX_FLAG)
if(WITH_STACK_PROTECTOR)
if(NOT MSVC)
check_c_compiler_flag("-fstack-protector-strong" HAVE_STACK_PROTECTOR_FLAG)
endif()
endif()
if(HAVE_WERROR_FLAG)
option(ENABLE_WERROR "Enable -Werror in all Makefiles" OFF)
endif()
add_compile_options(
$<$<BOOL:${MSVC}>:/wd4267>
$<$<BOOL:${MSVC}>:/wd4996>
$<$<BOOL:${ENABLE_WERROR}>:-Werror>
$<$<AND:$<COMPILE_LANGUAGE:CXX>,$<BOOL:${HAVE_WEFFCXX_FLAG}>>:-Weffc++>
$<$<AND:$<COMPILE_LANGUAGE:C>,$<BOOL:${HAVE_DECL_AFTER_STMT_FLAG}>>:-Wdeclaration-after-statement>)
if(HAVE_STACK_PROTECTOR_FLAG)
add_compile_options(-fstack-protector-strong)
endif()
if(CMAKE_SYSTEM_PROCESSOR STREQUAL "i686" AND HAVE_STACKREALIGN_FLAG)
add_compile_options(-mstackrealign)
endif()
include_directories("include")
include_directories("${CMAKE_CURRENT_BINARY_DIR}")
add_definitions(-DHAVE_CONFIG_H)
if(MSVC)
add_definitions(
-D_CRT_SECURE_NO_WARNINGS
-D_USE_MATH_DEFINES)
endif()
if(CMAKE_BUILD_TYPE STREQUAL Debug OR CMAKE_BUILD_TYPE STREQUAL RelWithDebInfo)
add_definitions(-DFLAC__OVERFLOW_DETECT)
endif()
add_subdirectory("src")
add_subdirectory("microbench")
if(BUILD_DOCS)
add_subdirectory("doc")
endif()
if(BUILD_EXAMPLES)
add_subdirectory("examples")
endif()
if(BUILD_TESTING)
add_subdirectory("test")
endif()
configure_file(config.cmake.h.in config.h)
if(INSTALL_CMAKE_CONFIG_MODULE)
install(
EXPORT targets
DESTINATION "${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME}/cmake"
NAMESPACE FLAC::)
configure_package_config_file(
flac-config.cmake.in flac-config.cmake
INSTALL_DESTINATION "${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME}/cmake")
write_basic_package_version_file(
flac-config-version.cmake COMPATIBILITY AnyNewerVersion)
install(
FILES
"${CMAKE_CURRENT_BINARY_DIR}/flac-config.cmake"
"${CMAKE_CURRENT_BINARY_DIR}/flac-config-version.cmake"
DESTINATION "${CMAKE_INSTALL_DATADIR}/${PROJECT_NAME}/cmake")
endif()
file(GLOB FLAC_HEADERS "include/FLAC/*.h")
file(GLOB FLAC++_HEADERS "include/FLAC++/*.h")
install(FILES ${FLAC_HEADERS} DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/FLAC")
install(FILES ${FLAC++_HEADERS} DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}/FLAC++")
if(INSTALL_MANPAGES)
install(FILES "man/flac.1" "man/metaflac.1" DESTINATION "${CMAKE_INSTALL_MANDIR}")
endif()
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