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# CMakeLists.txt -- Build madler/pigz against zlib variant
# Copyright (C) 2021 Nathan Moinvaziri
# Licensed under the Zlib license, see LICENSE.md for details
# By default pigz will be linked against the system zlib and
# pthread libraries if installed.
# For compilation on Windows download and use shim:
# https://github.com/zlib-ng/pigzbench/tree/master/pigz/win
# Optional Variables
# WITH_CODE_COVERAGE - Enable code coverage reporting
# WITH_THREADS - Enable threading support
# PIGZ_ENABLE_TESTS - Enable adding unit tests
# ZLIB_ROOT - Path to the zlib source directory
# PTHREADS4W_ROOT - Path to pthreads4w source directory on Windows.
# If not specified then threading will be disabled.
cmake_minimum_required(VERSION 3.11)
include(CheckCCompilerFlag)
include(FeatureSummary)
include(FetchContent)
include(../../cmake/detect-coverage.cmake)
option(WITH_CODE_COVERAGE "Enable code coverage reporting" OFF)
option(WITH_THREADS "Enable threading support" ON)
option(PIGZ_ENABLE_TESTS "Build unit tests" ON)
project(pigz LANGUAGES C)
# Set code coverage compiler flags
if(WITH_CODE_COVERAGE)
add_code_coverage()
endif()
# Compiler definitions
if(CMAKE_C_COMPILER_ID STREQUAL "Clang")
add_definitions(-fno-caret-diagnostics)
elseif(CMAKE_C_COMPILER_ID STREQUAL "GNU")
if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.5.0)
add_definitions(-Wno-unused-result)
endif()
if(NOT CMAKE_C_COMPILER_VERSION VERSION_LESS 4.8.0)
add_definitions(-fno-diagnostics-show-caret)
endif()
elseif(WIN32)
add_definitions(-D_TIMESPEC_DEFINED)
if(MSVC)
add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
endif()
endif()
# Fetch pigz source code from official repository
FetchContent_Declare(pigz
GIT_REPOSITORY https://github.com/madler/pigz.git)
FetchContent_MakeAvailable(pigz)
FetchContent_GetProperties(pigz)
if(NOT pigz_POPULATED)
FetchContent_Populate(pigz)
endif()
set(PIGZ_SRCS
${pigz_SOURCE_DIR}/pigz.c
${pigz_SOURCE_DIR}/try.c)
set(PIGZ_HDRS
${pigz_SOURCE_DIR}/try.h)
add_executable(${PROJECT_NAME} ${PIGZ_SRCS} ${PIGZ_HDRS})
add_definitions(-DNOZOPFLI)
if(WIN32)
target_include_directories(${PROJECT_NAME} PRIVATE win)
endif()
# Find and link against pthreads or pthreads4w
if(WITH_THREADS)
if(WIN32)
if(DEFINED PTHREADS4W_ROOT)
set(CLEANUP_STYLE VC)
set(PTHREADS4W_VERSION 3)
add_subdirectory(${PTHREADS4W_ROOT} ${PTHREADS4W_ROOT} EXCLUDE_FROM_ALL)
target_link_libraries(${PROJECT_NAME} pthreadVC3)
target_include_directories(${PROJECT_NAME} PRIVATE ${PTHREADS4W_ROOT})
else()
message(WARNING "Missing pthreads4w root directory")
set(WITH_THREADS OFF)
endif()
else()
find_package(Threads REQUIRED)
target_link_libraries(${PROJECT_NAME} Threads::Threads)
if(NOT APPLE)
target_link_libraries(${PROJECT_NAME} m)
endif()
endif()
endif()
# Disable threading support
if(NOT WITH_THREADS)
add_definitions(-DNOTHREAD)
else()
set_property(TARGET ${PROJECT_NAME} APPEND PROPERTY SOURCES
${pigz_SOURCE_DIR}/yarn.c
${pigz_SOURCE_DIR}/yarn.h)
endif()
# Find and link against zlib
if(NOT DEFINED ZLIB_ROOT)
find_package(Zlib REQUIRED)
endif()
set(ZLIB_COMPAT ON)
set(ZLIB_ENABLE_TESTS OFF)
add_subdirectory(${ZLIB_ROOT} ${CMAKE_CURRENT_BINARY_DIR}/zlib EXCLUDE_FROM_ALL)
if(NOT DEFINED BUILD_SHARED_LIBS OR NOT BUILD_SHARED_LIBS)
set(ZLIB_TARGET zlibstatic)
else()
set(ZLIB_TARGET zlib)
endif()
target_include_directories(${PROJECT_NAME} PRIVATE ${ZLIB_ROOT} ${CMAKE_CURRENT_BINARY_DIR}/zlib)
target_link_libraries(${PROJECT_NAME} ${ZLIB_TARGET})
if(NOT SKIP_INSTALL_BINARIES AND NOT SKIP_INSTALL_ALL)
install(TARGETS ${PROJECT_NAME} DESTINATION "bin")
endif()
# Add unit tests
if(PIGZ_ENABLE_TESTS)
enable_testing()
set(PIGZ_COMMAND ${CMAKE_CROSSCOMPILING_EMULATOR} $<TARGET_FILE:pigz>)
macro(test_pigz name path)
# Construct compression arguments for pigz
set(compress_args -k -c)
foreach(extra_arg IN ITEMS "${ARGN}")
list(APPEND compress_args ${extra_arg})
endforeach()
# Create unique friendly string for test
string(REPLACE ";" "" arg_list "${ARGN}")
string(REPLACE " " "" arg_list "${arg_list}")
string(REPLACE "-" "" arg_list "${arg_list}")
set(test_id pigz-${name}-${arg_list})
if(NOT TEST ${test_id})
add_test(NAME ${test_id}
COMMAND ${CMAKE_COMMAND}
"-DTARGET=${PIGZ_COMMAND}"
"-DCOMPRESS_ARGS=${compress_args}"
"-DDECOMPRESS_ARGS=-d;-c"
-DINPUT=${CMAKE_CURRENT_SOURCE_DIR}/${path}
-DTEST_NAME=${test_id}
-P ${CMAKE_CURRENT_SOURCE_DIR}/../../cmake/test-compress.cmake)
endif()
endmacro()
set(TEST_CONFIGS
-U # RLE compression
#-H # Z_HUFFMAN_ONLY (broken in 2.6)
-0 # No compression
-1 # Deflate quick
-4 # Deflate medium (lazy matches)
-6 # Deflate medium
-9 # Deflate slow
)
file(GLOB_RECURSE TEST_FILE_PATHS
LIST_DIRECTORIES false
RELATIVE ${CMAKE_CURRENT_SOURCE_DIR}
${CMAKE_CURRENT_SOURCE_DIR}/../data/*)
foreach(TEST_FILE_PATH ${TEST_FILE_PATHS})
if("${TEST_FILE_PATH}" MATCHES ".gz$" OR "${TEST_FILE_PATH}" MATCHES ".out$" OR
"${TEST_FILE_PATH}" MATCHES "/.git/" OR "${TEST_FILE_PATH}" MATCHES ".md$")
continue()
endif()
foreach(TEST_CONFIG ${TEST_CONFIGS})
get_filename_component(TEST_NAME ${TEST_FILE_PATH} NAME)
if (TEST_NAME STREQUAL "")
continue()
endif()
test_pigz(${TEST_NAME} ${TEST_FILE_PATH} ${TEST_CONFIG})
endforeach()
endforeach()
set(GH979_COMMAND ${CMAKE_CROSSCOMPILING_EMULATOR} $<TARGET_FILE:pigz>
-d -k -f ${CMAKE_CURRENT_SOURCE_DIR}/../GH-979/pigz-2.6.tar.gz)
add_test(NAME GH-979 COMMAND ${GH979_COMMAND})
endif()
add_feature_info(WITH_CODE_COVERAGE WITH_CODE_COVERAGE "Enable code coverage reporting")
add_feature_info(WITH_THREADS WITH_THREADS "Enable threading support")
add_feature_info(PIGZ_ENABLE_TESTS PIGZ_ENABLE_TESTS "Build unit tests")
FEATURE_SUMMARY(WHAT ALL INCLUDE_QUIET_PACKAGES)
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