mirror of https://github.com/madler/zlib
238 lines
8.5 KiB
CMake
238 lines
8.5 KiB
CMake
# CMake 3.21 or later is required for PROJECT_IS_TOP_LEVEL
|
|
cmake_minimum_required(VERSION 3.21...3.30)
|
|
|
|
project(zlib VERSION 1.3.1.1 LANGUAGES C)
|
|
|
|
# Where possible, projects should require CMake 3.21 or later and ensure policies CMP0077 and CMP0126 are set to NEW.
|
|
# This will prevent the project from discarding values set by parent projects as non-cache variables.
|
|
# XXX set(BUILD_SHARED_LIBS ON CACHE BOOL "Enable to build a shared library(DLL) instead a static one")
|
|
option(BUILD_SHARED_LIBS "Enable to build a shared library(DLL) instead a static one." ${PROJECT_IS_TOP_LEVEL})
|
|
option(ZLIB_BUILD_TESTING "Enable to build the test too." ${PROJECT_IS_TOP_LEVEL})
|
|
option(ZLIB_BUILD_EXAMPLES "Enable to build the examples too." ${PROJECT_IS_TOP_LEVEL})
|
|
|
|
include(CheckTypeSize)
|
|
include(CheckFunctionExists)
|
|
include(CheckIncludeFile)
|
|
|
|
check_include_file(sys/types.h HAVE_SYS_TYPES_H)
|
|
check_include_file(stdint.h HAVE_STDINT_H)
|
|
check_include_file(stddef.h HAVE_STDDEF_H)
|
|
|
|
#
|
|
# Check to see if we have large file support
|
|
#
|
|
set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
|
|
if(HAVE_SYS_TYPES_H)
|
|
list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H)
|
|
endif()
|
|
if(HAVE_STDINT_H)
|
|
list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H)
|
|
endif()
|
|
if(HAVE_STDDEF_H)
|
|
list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H)
|
|
endif()
|
|
check_type_size(off64_t OFF64_T)
|
|
if(HAVE_OFF64_T)
|
|
add_definitions(-D_LARGEFILE64_SOURCE=1)
|
|
endif()
|
|
set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
|
|
|
|
#
|
|
# Check for fseeko
|
|
#
|
|
check_function_exists(fseeko HAVE_FSEEKO)
|
|
if(NOT HAVE_FSEEKO)
|
|
add_definitions(-DNO_FSEEKO)
|
|
endif()
|
|
|
|
#
|
|
# Check for unistd.h
|
|
#
|
|
check_include_file(unistd.h Z_HAVE_UNISTD_H)
|
|
|
|
if(MSVC)
|
|
set(CMAKE_DEBUG_POSTFIX "d")
|
|
add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
|
|
add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
|
|
include_directories(${CMAKE_CURRENT_SOURCE_DIR})
|
|
endif()
|
|
|
|
option(RENAME_ZCONF "Rename the zconf when building out of source" ON)
|
|
if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR AND RENAME_ZCONF)
|
|
# If we're doing an out of source build and the user has a zconf.h
|
|
# in their source tree...
|
|
if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h)
|
|
message(STATUS "Renaming")
|
|
message(STATUS " ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h")
|
|
message(STATUS "to 'zconf.h.included' because this file is included with zlib")
|
|
message(STATUS "but CMake generates it automatically in the build directory.")
|
|
file(RENAME ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.included)
|
|
endif()
|
|
endif()
|
|
|
|
set(ZLIB_PC ${CMAKE_CURRENT_BINARY_DIR}/zlib.pc)
|
|
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zlib.pc.cmakein ${ZLIB_PC} @ONLY)
|
|
configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein ${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY)
|
|
# XXX include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_SOURCE_DIR})
|
|
|
|
#============================================================================
|
|
# zlib
|
|
#============================================================================
|
|
|
|
set(ZLIB_PUBLIC_HDRS ${CMAKE_CURRENT_BINARY_DIR}/zconf.h zlib.h)
|
|
set(ZLIB_PRIVATE_HDRS
|
|
crc32.h
|
|
deflate.h
|
|
gzguts.h
|
|
inffast.h
|
|
inffixed.h
|
|
inflate.h
|
|
inftrees.h
|
|
trees.h
|
|
zutil.h
|
|
)
|
|
set(ZLIB_SRCS
|
|
adler32.c
|
|
compress.c
|
|
crc32.c
|
|
deflate.c
|
|
gzclose.c
|
|
gzlib.c
|
|
gzread.c
|
|
gzwrite.c
|
|
inflate.c
|
|
infback.c
|
|
inftrees.c
|
|
inffast.c
|
|
trees.c
|
|
uncompr.c
|
|
zutil.c
|
|
)
|
|
|
|
if(NOT MINGW AND NOT MSYS)
|
|
set(ZLIB_DLL_SRCS win32/zlib1.rc # If present will override custom build rule below.
|
|
)
|
|
endif()
|
|
|
|
# parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
|
|
file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
|
|
string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([-0-9A-Za-z.]+)\".*" "\\1" ZLIB_FULL_VERSION ${_zlib_h_contents})
|
|
|
|
# TODO: add_library without SHARED/STATIC arg picks which one to use based on
|
|
# the variable BUILD_SHARED_LIBS. Maybe this could be simplified? (Herry Mallon)
|
|
if(BUILD_SHARED_LIBS AND MINGW)
|
|
# This gets us DLL resource information when compiling on MinGW.
|
|
if(NOT CMAKE_RC_COMPILER)
|
|
set(CMAKE_RC_COMPILER windres.exe)
|
|
endif()
|
|
|
|
add_custom_command(
|
|
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
|
|
COMMAND ${CMAKE_RC_COMPILER} -D GCC_WINDRES -I ${CMAKE_CURRENT_SOURCE_DIR} -I ${CMAKE_CURRENT_BINARY_DIR} -o
|
|
${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc
|
|
)
|
|
set(ZLIB_DLL_SRCS ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
|
|
endif()
|
|
|
|
if(BUILD_SHARED_LIBS)
|
|
add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
|
|
set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
|
|
set_target_properties(zlib PROPERTIES SOVERSION 1)
|
|
else()
|
|
add_library(zlib STATIC ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
|
|
endif()
|
|
|
|
target_include_directories(
|
|
zlib PUBLIC $<BUILD_INTERFACE:${CMAKE_CURRENT_BINARY_DIR}> $<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}>
|
|
)
|
|
|
|
if(BUILD_SHARED_LIBS AND NOT CYGWIN)
|
|
# This property causes shared libraries on Linux to have the full version
|
|
# encoded into their final filename. We disable this on Cygwin because
|
|
# it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll
|
|
# seems to be the default.
|
|
#
|
|
# This has no effect with MSVC, on that platform the version info for
|
|
# the DLL comes from the resource file win32/zlib1.rc
|
|
set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION})
|
|
endif()
|
|
|
|
if(UNIX)
|
|
# On unix-like platforms the library is almost always called libz
|
|
set_target_properties(zlib PROPERTIES OUTPUT_NAME z)
|
|
if(NOT APPLE AND NOT (CMAKE_SYSTEM_NAME STREQUAL AIX))
|
|
set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,\"${CMAKE_CURRENT_SOURCE_DIR}/zlib.map\"")
|
|
endif()
|
|
elseif(BUILD_SHARED_LIBS AND WIN32)
|
|
# Creates zlib1.dll when building shared library version
|
|
set_target_properties(zlib PROPERTIES SUFFIX "1.dll")
|
|
endif()
|
|
|
|
add_library(zlib::zlib ALIAS zlib)
|
|
# Note also that CMake's own FindZLIB.cmake module defines a slightly different
|
|
# imported target named ZLIB::ZLIB (the upper/lowercase differences are meaningful).
|
|
add_library(ZLIB::ZLIB ALIAS zlib)
|
|
|
|
#============================================================================
|
|
# Example binaries and ctests locatet at test subdir
|
|
# TODO: add_subdirectory(test)
|
|
#============================================================================
|
|
if(ZLIB_BUILD_TESTING)
|
|
enable_testing()
|
|
|
|
add_executable(example test/example.c)
|
|
target_link_libraries(example zlib)
|
|
add_test(example example)
|
|
|
|
if(HAVE_OFF64_T)
|
|
add_executable(example64 test/example.c)
|
|
target_link_libraries(example64 zlib)
|
|
set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
|
|
add_test(example64 example64)
|
|
endif()
|
|
endif()
|
|
|
|
if(ZLIB_BUILD_EXAMPLES)
|
|
add_executable(minigzip test/minigzip.c)
|
|
target_link_libraries(minigzip zlib)
|
|
|
|
if(HAVE_OFF64_T)
|
|
add_executable(minigzip64 test/minigzip.c)
|
|
target_link_libraries(minigzip64 zlib)
|
|
set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
|
|
endif()
|
|
endif()
|
|
|
|
#============================================================================
|
|
# optional install part
|
|
#============================================================================
|
|
if(SKIP_INSTALL_ALL)
|
|
return()
|
|
endif()
|
|
|
|
if(NOT SKIP_INSTALL_LIBRARIES)
|
|
include(GNUInstallDirs)
|
|
include(CMakePackageConfigHelpers)
|
|
|
|
set(ZLIB_INSTALL_CMAKEDIR "${CMAKE_INSTALL_LIBDIR}/cmake/zlib")
|
|
set(ZLIB_INSTALL_PKGCONFIG_DIR "${CMAKE_INSTALL_LIBDIR}/share/pkgconfig")
|
|
write_basic_package_version_file("zlibConfigVersion.cmake" COMPATIBILITY SameMajorVersion)
|
|
|
|
target_include_directories(zlib PUBLIC $<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>)
|
|
install(FILES "${PROJECT_BINARY_DIR}/zlibConfigVersion.cmake" DESTINATION "${ZLIB_INSTALL_CMAKEDIR}")
|
|
install(TARGETS zlib
|
|
EXPORT zlibConfig
|
|
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
|
|
ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
|
|
LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}"
|
|
)
|
|
install(EXPORT zlibConfig NAMESPACE zlib:: DESTINATION "${ZLIB_INSTALL_CMAKEDIR}")
|
|
endif()
|
|
if(NOT SKIP_INSTALL_HEADERS)
|
|
install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
|
|
endif()
|
|
if(NOT SKIP_INSTALL_FILES)
|
|
install(FILES zlib.3 DESTINATION "${CMAKE_INSTALL_MANDIR}/man3")
|
|
install(FILES ${ZLIB_PC} DESTINATION "${ZLIB_INSTALL_PKGCONFIG_DIR}")
|
|
endif()
|