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