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cmake_minimum_required(VERSION 3.13 FATAL_ERROR)
project(
bzip3
VERSION 1.5.3
DESCRIPTION "A better and stronger spiritual successor to BZip2"
HOMEPAGE_URL "https://github.com/iczelia/bzip3"
LANGUAGES C)
set(CMAKE_C_STANDARD 99)
option(BUILD_SHARED_LIBS "Build libbz3 as a shared library" ON)
option(BZIP3_BUILD_APPS "Build bzip3 applications" ON)
if(WIN32 AND NOT (MINGW OR CYGWIN))
set(BZIP3_ENABLE_PTHREAD_DEFAULT OFF)
else()
set(BZIP3_ENABLE_PTHREAD_DEFAULT ON)
endif()
option(BZIP3_ENABLE_PTHREAD "Enable use of pthread library" "${BZIP3_ENABLE_PTHREAD_DEFAULT}")
option(BZIP3_ENABLE_ARCH_NATIVE "Enable CPU-specific optimizations" OFF)
option(BZIP3_ENABLE_STATIC_EXE "Enable static builds of the executable" OFF)
include(CheckCCompilerFlag)
include(CheckSymbolExists)
include(GNUInstallDirs)
set(CMAKE_SKIP_BUILD_RPATH TRUE)
#set(CMAKE_INSTALL_RPATH ${CMAKE_INSTALL_FULL_LIBDIR})
#set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
set(prefix ${CMAKE_INSTALL_PREFIX})
set(exec_prefix ${CMAKE_INSTALL_PREFIX})
set(bindir ${CMAKE_INSTALL_FULL_BINDIR})
set(libdir ${CMAKE_INSTALL_FULL_LIBDIR})
set(includedir ${CMAKE_INSTALL_FULL_INCLUDEDIR})
set(PACKAGE ${CMAKE_PROJECT_NAME})
set(PACKAGE_VERSION ${PROJECT_VERSION})
if(WIN32 AND BUILD_SHARED_LIBS)
set(extra_cflags " -DBZIP3_DLL_IMPORT=1")
else()
set(extra_cflags "")
endif()
configure_file(bzip3.pc.in ${CMAKE_CURRENT_BINARY_DIR}/bzip3.pc @ONLY)
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/bzip3.pc
DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
if(BZIP3_ENABLE_PTHREAD)
set(THREADS_PREFER_PTHREAD_FLAG TRUE)
find_package(Threads REQUIRED)
endif()
if(BUILD_SHARED_LIBS)
add_library(bz3 SHARED)
else()
add_library(bz3 STATIC)
endif()
target_sources(bz3 PRIVATE src/libbz3.c)
target_compile_definitions(bz3 PUBLIC VERSION="${PROJECT_VERSION}")
if(WIN32 AND BUILD_SHARED_LIBS)
target_compile_definitions(bz3 PRIVATE BZIP3_DLL_EXPORT=1)
target_compile_definitions(bz3 INTERFACE BZIP3_DLL_IMPORT=1)
endif()
target_include_directories(
bz3
PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
INTERFACE $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
if(BZIP3_ENABLE_PTHREAD)
target_compile_definitions(bz3 PUBLIC PTHREAD)
target_link_libraries(bz3 Threads::Threads)
endif()
if(BZIP3_ENABLE_ARCH_NATIVE)
check_c_compiler_flag(-march=native CC_SUPPORT_MARCH_NATIVE_FLAG)
check_c_compiler_flag(-mtune=native CC_SUPPORT_MTUNE_NATIVE_FLAG)
if(CC_SUPPORT_MARCH_NATIVE_FLAG AND CC_SUPPORT_MTUNE_NATIVE_FLAG)
target_link_options(bz3 PUBLIC -march=native -mtune=native)
else()
message(
FATAL_ERROR
"Compiler does not support native optimizations, disable `BZIP3_ENABLE_ARCH_NATIVE`"
)
endif()
endif()
set_target_properties(
bz3
PROPERTIES OUTPUT_NAME bzip3
SOVERSION "1"
PUBLIC_HEADER include/libbz3.h
VERSION "1.0.0")
if(BUILD_SHARED_LIBS)
set_target_properties(bz3 PROPERTIES POSITION_INDEPENDENT_CODE ON)
endif()
install(
TARGETS bz3
EXPORT ${CMAKE_PROJECT_NAME}-targets
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
install(
EXPORT ${CMAKE_PROJECT_NAME}-targets
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${CMAKE_PROJECT_NAME}"
NAMESPACE ${CMAKE_PROJECT_NAME}::)
configure_file(
"${CMAKE_CURRENT_SOURCE_DIR}/${CMAKE_PROJECT_NAME}-config.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_PROJECT_NAME}-config.cmake"
@ONLY)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_PROJECT_NAME}-config.cmake"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/${CMAKE_PROJECT_NAME}")
if(BZIP3_BUILD_APPS)
add_executable(bzip3)
target_sources(bzip3 PRIVATE src/main.c)
if(BZIP3_ENABLE_STATIC_EXE)
if(BUILD_SHARED_LIBS)
message(
FATAL_ERROR
"libbz3 is not built as a static library, disable `BUILD_SHARED_LIBS`"
)
endif()
check_c_compiler_flag(-static CC_SUPPORT_STATIC_FLAG)
if(CC_SUPPORT_STATIC_FLAG)
target_link_options(bzip3 PRIVATE -static)
else()
message(
FATAL_ERROR
"Compiler does not support static linking, disable `BZIP3_ENABLE_STATIC_EXE`"
)
endif()
endif()
target_link_libraries(bzip3 PRIVATE bz3)
install(TARGETS bzip3 RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR})
set(BZIP3_APP_SCRIPTS bunzip3 bz3cat bz3grep bz3less bz3more bz3most)
install(PROGRAMS ${BZIP3_APP_SCRIPTS} DESTINATION ${CMAKE_INSTALL_BINDIR})
if(UNIX)
set(BZIP3_MANS
bunzip3.1
bz3cat.1
bz3grep.1
bz3less.1
bz3more.1
bz3most.1
bzip3.1)
foreach(BZIP3_MAN ${BZIP3_MANS})
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${BZIP3_MAN}.in)
string(TIMESTAMP MAN_DATE "%d %B %Y" UTC)
set(TRANSFORMED_PACKAGE_NAME ${CMAKE_PROJECT_NAME})
set(MAN_DATE ${MAN_DATE})
set(VERSION ${PROJECT_VERSION})
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/${BZIP3_MAN}.in
${CMAKE_CURRENT_BINARY_DIR}/${BZIP3_MAN}
@ONLY)
else()
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/${BZIP3_MAN}
${CMAKE_CURRENT_BINARY_DIR}/${BZIP3_MAN}
COPYONLY)
endif()
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${BZIP3_MAN}
DESTINATION ${CMAKE_INSTALL_MANDIR}/man1)
endforeach()
endif()
endif()
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