CMakeLists.txt

   1 cmake_minimum_required(VERSION 2.4.4)
   2 set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS ON)
   3
   4 project(zlib C)
   5
   6 set(VERSION "1.2.7")
   7
   8 set(INSTALL_BIN_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Installation directory for executables")
   9 set(INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Installation directory for libraries")
  10 set(INSTALL_INC_DIR "${CMAKE_INSTALL_PREFIX}/include" CACHE PATH "Installation directory for headers")
  11 set(INSTALL_MAN_DIR "${CMAKE_INSTALL_PREFIX}/share/man" CACHE PATH "Installation directory for manual pages")
  12 set(INSTALL_PKGCONFIG_DIR "${CMAKE_INSTALL_PREFIX}/share/pkgconfig" CACHE PATH "Installation directory for pkgconfig (.pc) files")
  13
  14 include(CheckTypeSize)
  15 include(CheckFunctionExists)
  16 include(CheckIncludeFile)
  17 include(CheckCSourceCompiles)
  18 enable_testing()
  19
  20 check_include_file(sys/types.h HAVE_SYS_TYPES_H)
  21 check_include_file(stdint.h    HAVE_STDINT_H)
  22 check_include_file(stddef.h    HAVE_STDDEF_H)
  23
  24 #
  25 # Check to see if we have large file support
  26 #
  27 set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
  28 # We add these other definitions here because CheckTypeSize.cmake
  29 # in CMake 2.4.x does not automatically do so and we want
  30 # compatibility with CMake 2.4.x.
  31 if(HAVE_SYS_TYPES_H)
  32     list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H)
  33 endif()
  34 if(HAVE_STDINT_H)
  35     list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H)
  36 endif()
  37 if(HAVE_STDDEF_H)
  38     list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H)
  39 endif()
  40 check_type_size(off64_t OFF64_T)
  41 if(HAVE_OFF64_T)
  42    add_definitions(-D_LARGEFILE64_SOURCE=1)
  43 endif()
  44 set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
  45
  46 #
  47 # Check for fseeko
  48 #
  49 check_function_exists(fseeko HAVE_FSEEKO)
  50 if(NOT HAVE_FSEEKO)
  51     add_definitions(-DNO_FSEEKO)
  52 endif()
  53
  54 #
  55 # Check for unistd.h
  56 #
  57 check_include_file(unistd.h Z_HAVE_UNISTD_H)
  58
  59 if(MSVC)
  60     set(CMAKE_DEBUG_POSTFIX "d")
  61     add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
  62     add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
  63     include_directories(${CMAKE_CURRENT_SOURCE_DIR})
  64 endif()
  65
  66 if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
  67     # If we're doing an out of source build and the user has a zconf.h
  68     # in their source tree...
  69     if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h)
  70         message(STATUS "Renaming")
  71         message(STATUS "    ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h")
  72         message(STATUS "to 'zconf.h.included' because this file is included with zlib")
  73         message(STATUS "but CMake generates it automatically in the build directory.")
  74         file(RENAME ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.included)
  75   endif()
  76 endif()
  77
  78 configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/zlib.pc.cmakein
  79                 ${CMAKE_CURRENT_BINARY_DIR}/zlib.pc @ONLY)
  80 configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein
  81                 ${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY)
  82 include_directories(${CMAKE_CURRENT_BINARY_DIR})
  83
  84
  85 #============================================================================
  86 # zlib
  87 #============================================================================
  88
  89 set(ZLIB_PUBLIC_HDRS
  90     ${CMAKE_CURRENT_BINARY_DIR}/zconf.h
  91     zlib.h
  92 )
  93 set(ZLIB_PRIVATE_HDRS
  94     crc32.h
  95     deflate.h
  96     gzguts.h
  97     inffast.h
  98     inffixed.h
  99     inflate.h
 100     inftrees.h
 101     trees.h
 102     zutil.h
 103 )
 104 set(ZLIB_SRCS
 105     adler32.c
 106     compress.c
 107     crc32.c
 108     deflate.c
 109     gzclose.c
 110     gzlib.c
 111     gzread.c
 112     gzwrite.c
 113     inflate.c
 114     infback.c
 115     inftrees.c
 116     inffast.c
 117     trees.c
 118     uncompr.c
 119     zutil.c
 120 )
 121
 122 if(NOT MINGW)
 123     set(ZLIB_SRCS ${ZLIB_SRCS}
 124         win32/zlib1.rc # If present will override custom build rule below.
 125     )
 126 endif()
 127
 128 # parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
 129 file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
 130 string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([0-9A-Za-z.]+)\".*"
 131     "\\1" ZLIB_FULL_VERSION ${_zlib_h_contents})
 132
 133 if(MINGW)
 134     # This gets us DLL resource information when compiling on MinGW.
 135     if(NOT CMAKE_RC_COMPILER)
 136         SET(CMAKE_RC_COMPILER windres.exe)
 137     endif()
 138
 139     add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
 140                        COMMAND ${CMAKE_RC_COMPILER}
 141                             -D GCC_WINDRES
 142                             -I ${CMAKE_CURRENT_SOURCE_DIR}
 143                             -I ${CMAKE_CURRENT_BINARY_DIR}
 144                             -o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
 145                             -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc)
 146     set(ZLIB_SRCS ${ZLIB_SRCS} ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
 147 endif(MINGW)
 148
 149 add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
 150 add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
 151 set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
 152 set_target_properties(zlib PROPERTIES SOVERSION 1)
 153
 154 if(NOT CYGWIN)
 155     # This property causes shared libraries on Linux to have the full version
 156     # encoded into their final filename.  We disable this on Cygwin because
 157     # it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll
 158     # seems to be the default.
 159     #
 160     # This has no effect with MSVC, on that platform the version info for
 161     # the DLL comes from the resource file win32/zlib1.rc
 162     set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION})
 163 endif()
 164
 165 if(UNIX)
 166     # On unix-like platforms the library is almost always called libz
 167    set_target_properties(zlib zlibstatic PROPERTIES OUTPUT_NAME z)
 168    set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,zlib.map")
 169 elseif(BUILD_SHARED_LIBS AND WIN32)
 170     # Creates zlib1.dll when building shared library version
 171     set_target_properties(zlib PROPERTIES SUFFIX "1.dll")
 172 endif()
 173
 174 if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
 175     install(TARGETS zlib zlibstatic
 176         RUNTIME DESTINATION "${INSTALL_BIN_DIR}"
 177         ARCHIVE DESTINATION "${INSTALL_LIB_DIR}"
 178         LIBRARY DESTINATION "${INSTALL_LIB_DIR}" )
 179 endif()
 180 if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
 181     install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION "${INSTALL_INC_DIR}")
 182 endif()
 183 if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
 184     install(FILES zlib.3 DESTINATION "${INSTALL_MAN_DIR}/man3")
 185 endif()
 186 if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
 187     install(FILES zlib.pc DESTINATION "${INSTALL_PKGCONFIG_DIR}")
 188 endif()
 189
 190 #============================================================================
 191 # Example binaries
 192 #============================================================================
 193
 194 add_executable(example test/example.c)
 195 target_link_libraries(example zlib)
 196 add_test(example example)
 197
 198 add_executable(minigzip test/minigzip.c)
 199 target_link_libraries(minigzip zlib)
 200
 201 if(HAVE_OFF64_T)
 202     add_executable(example64 test/example.c)
 203     target_link_libraries(example64 zlib)
 204     set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
 205     add_test(example64 example64)
 206
 207     add_executable(minigzip64 test/minigzip.c)
 208     target_link_libraries(minigzip64 zlib)
 209     set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
 210 endif()