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