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# Ubuntu 12.04 LTS has CMake 2.8.7, and is an important target since
# several CI services, such as Travis and Drone, use it. Solaris 11
# has 2.8.6, and it's not difficult to support if you already have to
# support 2.8.7.
cmake_minimum_required(VERSION 2.8.6)
project(brotli)
# 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(BROTLI_BUNDLED_MODE STREQUAL "")
# 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 OFF)
else()
set(BROTLI_BUNDLED_MODE ON)
endif()
endif()
mark_as_advanced(BROTLI_BUNDLED_MODE)
# When building shared libraries it is important to set the correct rpath.
# See https://cmake.org/Wiki/CMake_RPATH_handling#Always_full_RPATH
if (BUILD_SHARED_LIBS)
set(CMAKE_SKIP_BUILD_RPATH FALSE)
set(CMAKE_BUILD_WITH_INSTALL_RPATH FALSE)
set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
list(FIND CMAKE_PLATFORM_IMPLICIT_LINK_DIRECTORIES "${CMAKE_INSTALL_PREFIX}/lib" isSystemDir)
if ("${isSystemDir}" STREQUAL "-1")
set(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
endif()
endif()
# Parse version information from common/version.h. Normally we would
# define these values here and write them out to configuration file(s)
# (i.e., config.h), but in this case we parse them from
# common/version.h to be less intrusive.
function(hex_to_dec HEXADECIMAL DECIMAL)
string(TOUPPER "${HEXADECIMAL}" _tail)
set(_decimal 0)
string(LENGTH "${_tail}" _tail_length)
while (_tail_length GREATER 0)
math(EXPR _decimal "${_decimal} * 16")
string(SUBSTRING "${_tail}" 0 1 _digit)
string(SUBSTRING "${_tail}" 1 -1 _tail)
if (_digit STREQUAL "A")
math(EXPR _decimal "${_decimal} + 10")
elseif (_digit STREQUAL "B")
math(EXPR _decimal "${_decimal} + 11")
elseif (_digit STREQUAL "C")
math(EXPR _decimal "${_decimal} + 12")
elseif (_digit STREQUAL "D")
math(EXPR _decimal "${_decimal} + 13")
elseif (_digit STREQUAL "E")
math(EXPR _decimal "${_decimal} + 14")
elseif (_digit STREQUAL "F")
math(EXPR _decimal "${_decimal} + 15")
else()
math(EXPR _decimal "${_decimal} + ${_digit}")
endif()
string(LENGTH "${_tail}" _tail_length)
endwhile()
set(${DECIMAL} ${_decimal} PARENT_SCOPE)
endfunction(hex_to_dec)
file(STRINGS "common/version.h" _brotli_version_line REGEX "^#define BROTLI_VERSION (0x[0-9a-fA-F]+)$")
string(REGEX REPLACE "^#define BROTLI_VERSION 0x([0-9a-fA-F]+)$" "\\1" _brotli_version_hex "${_brotli_version_line}")
hex_to_dec("${_brotli_version_hex}" _brotli_version)
math(EXPR BROTLI_VERSION_MAJOR "${_brotli_version} >> 24")
math(EXPR BROTLI_VERSION_MINOR "(${_brotli_version} >> 12) & 4095")
math(EXPR BROTLI_VERSION_REVISION "${_brotli_version} & 4095")
mark_as_advanced(BROTLI_VERSION_MAJOR BROTLI_VERSION_MINOR BROTLI_VERSION_REVISION)
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}")
# By default, brotli depends on undefined behavior, but setting
# BROTLI_BUILD_PORTABLE should result in a build which does not.
if(ENABLE_SANITIZER STREQUAL "undefined")
add_definitions(-DBROTLI_BUILD_PORTABLE)
endif()
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")
else()
message(FATAL_ERROR "log2() not found")
endif()
set(CMAKE_REQUIRED_LIBRARIES "${orig_req_libs}")
unset(LOG2_LIBM_RES)
unset(orig_req_libs)
endif()
unset(LOG2_RES)
set(BROTLI_INCLUDE_DIRS "${CMAKE_CURRENT_SOURCE_DIR}/include")
set(BROTLI_LIBRARIES_CORE brotli_enc brotli_dec brotli_common)
set(BROTLI_LIBRARIES ${BROTLI_LIBRARIES_CORE} ${LIBM_LIBRARY})
mark_as_advanced(BROTLI_INCLUDE_DIRS BROTLI_LIBRARIES)
if(${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)
endif()
add_library(brotli_common
common/dictionary.c)
add_library(brotli_dec
dec/bit_reader.c
dec/decode.c
dec/huffman.c
dec/state.c)
add_library(brotli_enc
enc/backward_references.c
enc/bit_cost.c
enc/block_splitter.c
enc/brotli_bit_stream.c
enc/cluster.c
enc/compress_fragment.c
enc/compress_fragment_two_pass.c
enc/encode.c
enc/entropy_encode.c
enc/histogram.c
enc/literal_cost.c
enc/memory.c
enc/metablock.c
enc/static_dict.c
enc/utf8_util.c)
# Older CMake versions does not understand INCLUDE_DIRECTORIES property.
include_directories(${BROTLI_INCLUDE_DIRS})
foreach(lib brotli_common brotli_dec brotli_enc)
target_link_libraries(${lib} ${LIBM_LIBRARY})
set_property(TARGET ${lib} APPEND PROPERTY INCLUDE_DIRECTORIES ${BROTLI_INCLUDE_DIRS})
set_target_properties(${lib} PROPERTIES
VERSION ${BROTLI_VERSION_MAJOR}.${BROTLI_VERSION_MINOR}.${BROTLI_VERSION_REVISION}
POSITION_INDEPENDENT_CODE TRUE)
set_property(TARGET ${lib} APPEND PROPERTY INTERFACE_INCLUDE_DIRECTORIES "${BROTLI_INCLUDE_DIRS}")
endforeach()
if (BUILD_SHARED_LIBS)
target_link_libraries(brotli_dec brotli_common)
target_link_libraries(brotli_enc brotli_common)
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 bro executable
add_executable(bro tools/bro.c)
target_link_libraries(bro ${BROTLI_LIBRARIES})
# Installation
if(NOT BROTLI_BUNDLED_MODE)
include(GNUInstallDirs)
install (TARGETS bro RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
if(WIN32)
install(TARGETS ${BROTLI_LIBRARIES_CORE} RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")
else()
install(TARGETS ${BROTLI_LIBRARIES_CORE} LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}")
install(DIRECTORY ${BROTLI_INCLUDE_DIRS}/brotli DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
endif()
endif()
# 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_WINE NAMES wine)
if(NOT BROTLI_WINE)
message(STATUS "wine not found, disabling tests")
set(BROTLI_DISABLE_TESTS TRUE)
endif()
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
enc/encode.c
common/dictionary.h
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}")
foreach(quality 1 6 9 11)
add_test(NAME "${BROTLI_TEST_PREFIX}roundtrip/${INPUT}/${quality}"
COMMAND "${CMAKE_COMMAND}"
-DBROTLI_WRAPPER=${BROTLI_WINE}
-DBROTLI_CLI=$<TARGET_FILE:bro>
-DQUALITY=${quality}
-DINPUT=${INPUT_FILE}
-DOUTPUT=${OUTPUT_FILE}.${quality}
-P ${CMAKE_CURRENT_SOURCE_DIR}/tests/run-roundtrip-test.cmake)
endforeach()
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=${BROTLI_WINE}
-DBROTLI_CLI=$<TARGET_FILE:bro>
-DINPUT=${CMAKE_CURRENT_SOURCE_DIR}/${INPUT}
-P ${CMAKE_CURRENT_SOURCE_DIR}/tests/run-compatibility-test.cmake)
endforeach()
endif()
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