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# Available CMake versions:
# - Ubuntu 20.04 LTS : 3.16.3
# - Solaris 11.4 SRU 15 : 3.15
cmake_minimum_required(VERSION 3.15)
# Since this project's version is loaded from other files, this policy
# will help suppress the warning generated by cmake.
# This policy is set because we can't provide "VERSION" in "project" command.
# Use `cmake --help-policy CMP0048` for more information.
cmake_policy(SET CMP0048 NEW)
project(brotli C)
option(BUILD_SHARED_LIBS "Build shared libraries" ON)
if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CONFIGURATION_TYPES)
message(STATUS "Setting build type to Release as none was specified.")
set(CMAKE_BUILD_TYPE "Release" CACHE STRING "Choose the type of build." FORCE)
else()
message(STATUS "Build type is '${CMAKE_BUILD_TYPE}'")
endif()
include(CheckCSourceCompiles)
check_c_source_compiles(
"#if defined(__EMSCRIPTEN__)
int main() {return 0;}
#endif"
BROTLI_EMSCRIPTEN
)
if (BROTLI_EMSCRIPTEN)
message("-- Compiler is EMSCRIPTEN")
else()
message("-- Compiler is not EMSCRIPTEN")
endif()
# If Brotli is being bundled in another project, we don't want to
# install anything. However, we want to let people override this, so
# we'll use the BROTLI_BUNDLED_MODE variable to let them do that; just
# set it to OFF in your project before you add_subdirectory(brotli).
get_directory_property(BROTLI_PARENT_DIRECTORY PARENT_DIRECTORY)
if(NOT DEFINED BROTLI_BUNDLED_MODE)
# Bundled mode hasn't been set one way or the other, set the default
# depending on whether or not we are the top-level project.
if(BROTLI_PARENT_DIRECTORY)
set(BROTLI_BUNDLED_MODE ON)
else()
set(BROTLI_BUNDLED_MODE OFF)
endif()
endif()
mark_as_advanced(BROTLI_BUNDLED_MODE)
include(GNUInstallDirs)
# Reads macro from .h file; it is expected to be a single-line define.
function(read_macro PATH MACRO OUTPUT)
file(STRINGS ${PATH} _line REGEX "^#define +${MACRO} +(.+)$")
string(REGEX REPLACE "^#define +${MACRO} +(.+)$" "\\1" _val "${_line}")
set(${OUTPUT} ${_val} PARENT_SCOPE)
endfunction(read_macro)
# Version information
read_macro("c/common/version.h" "BROTLI_VERSION_MAJOR" BROTLI_VERSION_MAJOR)
read_macro("c/common/version.h" "BROTLI_VERSION_MINOR" BROTLI_VERSION_MINOR)
read_macro("c/common/version.h" "BROTLI_VERSION_PATCH" BROTLI_VERSION_PATCH)
set(BROTLI_VERSION "${BROTLI_VERSION_MAJOR}.${BROTLI_VERSION_MINOR}.${BROTLI_VERSION_PATCH}")
mark_as_advanced(BROTLI_VERSION BROTLI_VERSION_MAJOR BROTLI_VERSION_MINOR BROTLI_VERSION_PATCH)
# ABI Version information
read_macro("c/common/version.h" "BROTLI_ABI_CURRENT" BROTLI_ABI_CURRENT)
read_macro("c/common/version.h" "BROTLI_ABI_REVISION" BROTLI_ABI_REVISION)
read_macro("c/common/version.h" "BROTLI_ABI_AGE" BROTLI_ABI_AGE)
math(EXPR BROTLI_ABI_COMPATIBILITY "${BROTLI_ABI_CURRENT} - ${BROTLI_ABI_AGE}")
mark_as_advanced(BROTLI_ABI_CURRENT BROTLI_ABI_REVISION BROTLI_ABI_AGE BROTLI_ABI_COMPATIBILITY)
if (ENABLE_SANITIZER)
set(CMAKE_C_FLAGS " ${CMAKE_C_FLAGS} -fsanitize=${ENABLE_SANITIZER}")
set(CMAKE_CXX_FLAGS " ${CMAKE_CXX_FLAGS} -fsanitize=${ENABLE_SANITIZER}")
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fsanitize=${ENABLE_SANITIZER}")
endif ()
include(CheckFunctionExists)
set(LIBM_LIBRARY)
CHECK_FUNCTION_EXISTS(log2 LOG2_RES)
if(NOT LOG2_RES)
set(orig_req_libs "${CMAKE_REQUIRED_LIBRARIES}")
set(CMAKE_REQUIRED_LIBRARIES "${CMAKE_REQUIRED_LIBRARIES};m")
CHECK_FUNCTION_EXISTS(log2 LOG2_LIBM_RES)
if(LOG2_LIBM_RES)
set(LIBM_LIBRARY "m")
add_definitions(-DBROTLI_HAVE_LOG2=1)
else()
add_definitions(-DBROTLI_HAVE_LOG2=0)
endif()
set(CMAKE_REQUIRED_LIBRARIES "${orig_req_libs}")
unset(LOG2_LIBM_RES)
unset(orig_req_libs)
else()
add_definitions(-DBROTLI_HAVE_LOG2=1)
endif()
unset(LOG2_RES)
set(BROTLI_INCLUDE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/c/include")
mark_as_advanced(BROTLI_INCLUDE_DIRS)
set(BROTLI_LIBRARIES_CORE brotlienc brotlidec brotlicommon)
set(BROTLI_LIBRARIES ${BROTLI_LIBRARIES_CORE} ${LIBM_LIBRARY})
mark_as_advanced(BROTLI_LIBRARIES)
if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
add_definitions(-DOS_LINUX)
elseif(${CMAKE_SYSTEM_NAME} MATCHES "FreeBSD")
add_definitions(-DOS_FREEBSD)
elseif(${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
add_definitions(-DOS_MACOSX)
set(CMAKE_MACOS_RPATH TRUE)
set(CMAKE_INSTALL_NAME_DIR "${CMAKE_INSTALL_PREFIX}/lib")
endif()
if(BROTLI_EMSCRIPTEN)
set(BUILD_SHARED_LIBS OFF)
endif()
file(GLOB_RECURSE BROTLI_COMMON_SOURCES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} c/common/*.c)
add_library(brotlicommon ${BROTLI_COMMON_SOURCES})
file(GLOB_RECURSE BROTLI_DEC_SOURCES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} c/dec/*.c)
add_library(brotlidec ${BROTLI_DEC_SOURCES})
file(GLOB_RECURSE BROTLI_ENC_SOURCES RELATIVE ${CMAKE_CURRENT_SOURCE_DIR} c/enc/*.c)
add_library(brotlienc ${BROTLI_ENC_SOURCES})
# Older CMake versions does not understand INCLUDE_DIRECTORIES property.
include_directories(${BROTLI_INCLUDE_DIRS})
if(BUILD_SHARED_LIBS)
foreach(lib ${BROTLI_LIBRARIES_CORE})
target_compile_definitions(${lib} PUBLIC "BROTLI_SHARED_COMPILATION" )
string(TOUPPER "${lib}" LIB)
set_target_properties (${lib} PROPERTIES DEFINE_SYMBOL "${LIB}_SHARED_COMPILATION")
endforeach()
endif()
foreach(lib ${BROTLI_LIBRARIES_CORE})
target_link_libraries(${lib} ${LIBM_LIBRARY})
set_property(TARGET ${lib} APPEND PROPERTY INCLUDE_DIRECTORIES ${BROTLI_INCLUDE_DIRS})
set_target_properties(${lib} PROPERTIES
VERSION "${BROTLI_ABI_COMPATIBILITY}.${BROTLI_ABI_AGE}.${BROTLI_ABI_REVISION}"
SOVERSION "${BROTLI_ABI_COMPATIBILITY}")
if(NOT BROTLI_EMSCRIPTEN)
set_target_properties(${lib} PROPERTIES POSITION_INDEPENDENT_CODE TRUE)
endif()
set_property(TARGET ${lib} APPEND PROPERTY INTERFACE_INCLUDE_DIRECTORIES "$<BUILD_INTERFACE:${BROTLI_INCLUDE_DIRS}>")
endforeach()
if(NOT BROTLI_EMSCRIPTEN)
target_link_libraries(brotlidec brotlicommon)
target_link_libraries(brotlienc brotlicommon)
endif()
# For projects stuck on older versions of CMake, this will set the
# BROTLI_INCLUDE_DIRS and BROTLI_LIBRARIES variables so they still
# have a relatively easy way to use Brotli:
#
# include_directories(${BROTLI_INCLUDE_DIRS})
# target_link_libraries(foo ${BROTLI_LIBRARIES})
if(BROTLI_PARENT_DIRECTORY)
set(BROTLI_INCLUDE_DIRS "${BROTLI_INCLUDE_DIRS}" PARENT_SCOPE)
set(BROTLI_LIBRARIES "${BROTLI_LIBRARIES}" PARENT_SCOPE)
endif()
# Build the brotli executable
add_executable(brotli c/tools/brotli.c)
target_link_libraries(brotli ${BROTLI_LIBRARIES})
# Installation
if(NOT BROTLI_BUNDLED_MODE)
install(
TARGETS brotli
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
)
install(
TARGETS ${BROTLI_LIBRARIES_CORE}
ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
)
install(
DIRECTORY ${BROTLI_INCLUDE_DIRS}/brotli
DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}"
)
endif() # BROTLI_BUNDLED_MODE
# Tests
# If we're targeting Windows but not running on Windows, we need Wine
# to run the tests...
if(NOT BROTLI_DISABLE_TESTS)
if(WIN32 AND NOT CMAKE_HOST_WIN32)
find_program(BROTLI_WRAPPER NAMES wine)
if(NOT BROTLI_WRAPPER)
message(STATUS "wine not found, disabling tests")
set(BROTLI_DISABLE_TESTS TRUE)
endif()
endif()
endif()
# If our compiler is a cross-compiler that we know about (arm/aarch64),
# then we need to use qemu to execute the tests.
if(NOT BROTLI_DISABLE_TESTS)
if ("${CMAKE_C_COMPILER}" MATCHES "^.*/arm-linux-gnueabihf-.*$")
message(STATUS "Detected arm-linux-gnueabihf cross-compilation")
set(BROTLI_WRAPPER "qemu-arm")
set(BROTLI_WRAPPER_LD_PREFIX "/usr/arm-linux-gnueabihf")
endif()
if ("${CMAKE_C_COMPILER}" MATCHES "^.*/arm-linux-gnueabi-.*$")
message(STATUS "Detected arm-linux-gnueabi cross-compilation")
set(BROTLI_WRAPPER "qemu-arm")
set(BROTLI_WRAPPER_LD_PREFIX "/usr/arm-linux-gnueabi")
endif()
if ("${CMAKE_C_COMPILER}" MATCHES "^.*/aarch64-linux-gnu-.*$")
message(STATUS "Detected aarch64-linux-gnu cross-compilation")
set(BROTLI_WRAPPER "qemu-aarch64")
set(BROTLI_WRAPPER_LD_PREFIX "/usr/aarch64-linux-gnu")
endif()
endif()
if(NOT BROTLI_DISABLE_TESTS)
include(CTest)
enable_testing()
set(ROUNDTRIP_INPUTS
tests/testdata/alice29.txt
tests/testdata/asyoulik.txt
tests/testdata/lcet10.txt
tests/testdata/plrabn12.txt
c/enc/encode.c
c/common/dictionary.h
c/dec/decode.c)
foreach(INPUT ${ROUNDTRIP_INPUTS})
get_filename_component(OUTPUT_NAME "${INPUT}" NAME)
set(OUTPUT_FILE "${CMAKE_CURRENT_BINARY_DIR}/${OUTPUT_NAME}")
set(INPUT_FILE "${CMAKE_CURRENT_SOURCE_DIR}/${INPUT}")
if (EXISTS "${INPUT_FILE}")
foreach(quality 1 6 9 11)
add_test(NAME "${BROTLI_TEST_PREFIX}roundtrip/${INPUT}/${quality}"
COMMAND "${CMAKE_COMMAND}"
-DBROTLI_WRAPPER=${BROTLI_WRAPPER}
-DBROTLI_WRAPPER_LD_PREFIX=${BROTLI_WRAPPER_LD_PREFIX}
-DBROTLI_CLI=$<TARGET_FILE:brotli>
-DQUALITY=${quality}
-DINPUT=${INPUT_FILE}
-DOUTPUT=${OUTPUT_FILE}.${quality}
-P ${CMAKE_CURRENT_SOURCE_DIR}/tests/run-roundtrip-test.cmake)
endforeach()
else()
message(WARNING "Test file ${INPUT} does not exist.")
endif()
endforeach()
file(GLOB_RECURSE
COMPATIBILITY_INPUTS
RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
tests/testdata/*.compressed*)
foreach(INPUT ${COMPATIBILITY_INPUTS})
add_test(NAME "${BROTLI_TEST_PREFIX}compatibility/${INPUT}"
COMMAND "${CMAKE_COMMAND}"
-DBROTLI_WRAPPER=${BROTLI_WRAPPER}
-DBROTLI_WRAPPER_LD_PREFIX=${BROTLI_WRAPPER_LD_PREFIX}
-DBROTLI_CLI=$<TARGET_FILE:brotli>
-DINPUT=${CMAKE_CURRENT_SOURCE_DIR}/${INPUT}
-P ${CMAKE_CURRENT_SOURCE_DIR}/tests/run-compatibility-test.cmake)
endforeach()
endif()
# Generate a pkg-config files
function(generate_pkg_config_path outvar path)
string(LENGTH "${path}" path_length)
set(path_args ${ARGV})
list(REMOVE_AT path_args 0 1)
list(LENGTH path_args path_args_remaining)
set("${outvar}" "${path}")
while(path_args_remaining GREATER 1)
list(GET path_args 0 name)
list(GET path_args 1 value)
get_filename_component(value_full "${value}" ABSOLUTE)
string(LENGTH "${value}" value_length)
if(path_length EQUAL value_length AND path STREQUAL value)
set("${outvar}" "\${${name}}")
break()
elseif(path_length GREATER value_length)
# We might be in a subdirectory of the value, but we have to be
# careful about a prefix matching but not being a subdirectory
# (for example, /usr/lib64 is not a subdirectory of /usr/lib).
# We'll do this by making sure the next character is a directory
# separator.
string(SUBSTRING "${path}" ${value_length} 1 sep)
if(sep STREQUAL "/")
string(SUBSTRING "${path}" 0 ${value_length} s)
if(s STREQUAL value)
string(SUBSTRING "${path}" "${value_length}" -1 suffix)
set("${outvar}" "\${${name}}${suffix}")
break()
endif()
endif()
endif()
list(REMOVE_AT path_args 0 1)
list(LENGTH path_args path_args_remaining)
endwhile()
set("${outvar}" "${${outvar}}" PARENT_SCOPE)
endfunction(generate_pkg_config_path)
function(transform_pc_file INPUT_FILE OUTPUT_FILE VERSION)
file(READ ${INPUT_FILE} TEXT)
set(PREFIX "${CMAKE_INSTALL_PREFIX}")
string(REGEX REPLACE "@prefix@" "${PREFIX}" TEXT ${TEXT})
string(REGEX REPLACE "@exec_prefix@" "${PREFIX}" TEXT ${TEXT})
generate_pkg_config_path(LIBDIR "${CMAKE_INSTALL_FULL_LIBDIR}" prefix "${PREFIX}")
string(REGEX REPLACE "@libdir@" "${LIBDIR}" TEXT ${TEXT})
generate_pkg_config_path(INCLUDEDIR "${CMAKE_INSTALL_FULL_INCLUDEDIR}" prefix "${PREFIX}")
string(REGEX REPLACE "@includedir@" "${INCLUDEDIR}" TEXT ${TEXT})
string(REGEX REPLACE "@PACKAGE_VERSION@" "${VERSION}" TEXT ${TEXT})
file(WRITE ${OUTPUT_FILE} ${TEXT})
endfunction()
transform_pc_file("scripts/libbrotlicommon.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/libbrotlicommon.pc" "${BROTLI_VERSION}")
transform_pc_file("scripts/libbrotlidec.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/libbrotlidec.pc" "${BROTLI_VERSION}")
transform_pc_file("scripts/libbrotlienc.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/libbrotlienc.pc" "${BROTLI_VERSION}")
if(NOT BROTLI_BUNDLED_MODE)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libbrotlicommon.pc"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libbrotlidec.pc"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/libbrotlienc.pc"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
endif() # BROTLI_BUNDLED_MODE
if (ENABLE_COVERAGE STREQUAL "yes")
SETUP_TARGET_FOR_COVERAGE(coverage test coverage)
endif ()