A massively spiffy yet delicately unobtrusive compression library. (grpc依赖)
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cmake_minimum_required(VERSION 3.5)
set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
project(zlib
LANGUAGES C
VERSION 1.3.1.1)
option(ZLIB_BUILD_EXAMPLES "Enable Zlib Examples" ON)
option(ZLIB_BUILD_SHARED "Enable building zlib shared library" ON)
option(ZLIB_BUILD_STATIC "Enable building zlib static library" ON)
if(WIN32)
option(ZLIB_INSTALL_COMPAT_DLL "Install a copy as zlib1.dll" ON)
endif(WIN32)
include(CheckTypeSize)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckCSourceCompiles)
include(GNUInstallDirs)
enable_testing()
#
# Check to see if we have large file support
#
set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
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)
add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
endif()
set(ZLIB_PC ${zlib_BINARY_DIR}/zlib.pc)
configure_file( ${zlib_SOURCE_DIR}/zlib.pc.cmakein
${ZLIB_PC} @ONLY)
configure_file( ${zlib_SOURCE_DIR}/zconf.h.cmakein
${zlib_BINARY_DIR}/zconf.h @ONLY)
include_directories(${zlib_BINARY_DIR} ${zlib_SOURCE_DIR})
#============================================================================
# zlib
#============================================================================
set(ZLIB_PUBLIC_HDRS
${zlib_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)
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 ${zlib_SOURCE_DIR}/zlib.h _zlib_h_contents)
string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([-0-9A-Za-z.]+)\".*"
"\\1" ZLIB_VERSION ${_zlib_h_contents})
if(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 ${zlib_BINARY_DIR}/zlib1rc.obj
COMMAND ${CMAKE_RC_COMPILER}
-D GCC_WINDRES
-I ${zlib_SOURCE_DIR}
-I ${zlib_BINARY_DIR}
-o ${zlib_BINARY_DIR}/zlib1rc.obj
-i ${zlib_SOURCE_DIR}/win32/zlib1.rc)
set(ZLIB_DLL_SRCS ${zlib_BINARY_DIR}/zlib1rc.obj)
endif(MINGW)
if(WIN32)
set (zlib_static_suffix "s")
set (zlib_debug_suffix "d")
endif(WIN32)
if(ZLIB_BUILD_SHARED)
add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
target_include_directories(zlib PUBLIC
$<BUILD_INTERFACE:${zlib_BINARY_DIR}>
$<BUILD_INTERFACE:${zlib_SOURCE_DIR}>)
set_target_properties(zlib PROPERTIES
DEFINE_SYMBOL ZLIB_DLL
SOVERSION 1
PROPERTIES OUTPUT_NAME z
PROPERTIES OUTPUT_NAME_DEBUG z${zlib_debug_suffix})
if(UNIX AND NOT APPLE AND NOT(CMAKE_SYSTEM_NAME STREQUAL AIX))
# On unix-like platforms the library is almost always called libz
set_target_properties(zlib PROPERTIES
LINK_FLAGS "-Wl,--version-script,\"${zlib_SOURCE_DIR}/zlib.map\"")
endif(UNIX AND NOT APPLE AND NOT(CMAKE_SYSTEM_NAME STREQUAL AIX))
endif(ZLIB_BUILD_SHARED)
if(ZLIB_BUILD_STATIC)
add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
target_include_directories(zlibstatic PUBLIC
$<BUILD_INTERFACE:${zlib_BINARY_DIR}>
$<BUILD_INTERFACE:${zlib_SOURCE_DIR}>)
set_target_properties(zlibstatic PROPERTIES
PROPERTIES OUTPUT_NAME z${zlib_static_suffix}
PROPERTIES OUTPUT_NAME_DEBUG z${zlib_static_suffix}${zlib_debug_suffix})
endif(ZLIB_BUILD_STATIC)
if(NOT CYGWIN AND ZLIB_BUILD_SHARED)
# This property causes shared libraries on Linux to have the full version
# encoded into their final filename. We disable this on Cygwin because
# it causes cygz-${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 ${zlib_VERSION})
endif()
if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
if(ZLIB_BUILD_SHARED)
install(TARGETS zlib
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}")
if(ZLIB_INSTALL_COMPAT_DLL)
install(FILES $<TARGET_FILE:zlib>
RENAME zlib1.dll
DESTINATION "${CMAKE_INSTALL_BINDIR}")
endif(ZLIB_INSTALL_COMPAT_DLL)
if(MSVC)
install(FILES $<TARGET_PDB_FILE:zlib>
DESTINATION ${CMAKE_INSTALL_BINDIR}
CONFIGURATIONS Debug OR RelWithDebInfo
OPTIONAL
)
endif(MSVC)
endif(ZLIB_BUILD_SHARED)
if(ZLIB_BUILD_STATIC)
install(TARGETS zlibstatic
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}"
ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}"
LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}")
endif(ZLIB_BUILD_STATIC)
endif()
if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
endif()
if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
install(FILES zlib.3 DESTINATION "${CMAKE_INSTALL_MANDIR}/man3")
endif()
if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
install(FILES ${ZLIB_PC} DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
endif()
#============================================================================
# Example binaries
#============================================================================
if(ZLIB_BUILD_EXAMPLES)
add_executable(zlib_example test/example.c)
target_link_libraries(zlib_example zlib)
add_test(zlib_example zlib_example)
add_executable(minigzip test/minigzip.c)
target_link_libraries(minigzip zlib)
if(HAVE_OFF64_T)
add_executable(zlib_example64 test/example.c)
target_link_libraries(zlib_example64 zlib)
set_target_properties(zlib_example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
add_test(zlib_example64 zlib_example64)
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()