external/zlib-1.2.11/CMakeLists.txt
author Sam Lantinga <slouken@libsdl.org>
Fri, 26 Oct 2018 14:58:01 -0700
changeset 617 d64228a395fc
parent 521 9ed2f7d4a251
permissions -rw-r--r--
Fixed webp library detection when cross-compiling for Windows
     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 "1.2.11")
     7 
     8 option(ASM686 "Enable building i686 assembly implementation")
     9 option(AMD64 "Enable building amd64 assembly implementation")
    10 
    11 set(INSTALL_BIN_DIR "${CMAKE_INSTALL_PREFIX}/bin" CACHE PATH "Installation directory for executables")
    12 set(INSTALL_LIB_DIR "${CMAKE_INSTALL_PREFIX}/lib" CACHE PATH "Installation directory for libraries")
    13 set(INSTALL_INC_DIR "${CMAKE_INSTALL_PREFIX}/include" CACHE PATH "Installation directory for headers")
    14 set(INSTALL_MAN_DIR "${CMAKE_INSTALL_PREFIX}/share/man" CACHE PATH "Installation directory for manual pages")
    15 set(INSTALL_PKGCONFIG_DIR "${CMAKE_INSTALL_PREFIX}/share/pkgconfig" CACHE PATH "Installation directory for pkgconfig (.pc) files")
    16 
    17 include(CheckTypeSize)
    18 include(CheckFunctionExists)
    19 include(CheckIncludeFile)
    20 include(CheckCSourceCompiles)
    21 enable_testing()
    22 
    23 check_include_file(sys/types.h HAVE_SYS_TYPES_H)
    24 check_include_file(stdint.h    HAVE_STDINT_H)
    25 check_include_file(stddef.h    HAVE_STDDEF_H)
    26 
    27 #
    28 # Check to see if we have large file support
    29 #
    30 set(CMAKE_REQUIRED_DEFINITIONS -D_LARGEFILE64_SOURCE=1)
    31 # We add these other definitions here because CheckTypeSize.cmake
    32 # in CMake 2.4.x does not automatically do so and we want
    33 # compatibility with CMake 2.4.x.
    34 if(HAVE_SYS_TYPES_H)
    35     list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_SYS_TYPES_H)
    36 endif()
    37 if(HAVE_STDINT_H)
    38     list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDINT_H)
    39 endif()
    40 if(HAVE_STDDEF_H)
    41     list(APPEND CMAKE_REQUIRED_DEFINITIONS -DHAVE_STDDEF_H)
    42 endif()
    43 check_type_size(off64_t OFF64_T)
    44 if(HAVE_OFF64_T)
    45    add_definitions(-D_LARGEFILE64_SOURCE=1)
    46 endif()
    47 set(CMAKE_REQUIRED_DEFINITIONS) # clear variable
    48 
    49 #
    50 # Check for fseeko
    51 #
    52 check_function_exists(fseeko HAVE_FSEEKO)
    53 if(NOT HAVE_FSEEKO)
    54     add_definitions(-DNO_FSEEKO)
    55 endif()
    56 
    57 #
    58 # Check for unistd.h
    59 #
    60 check_include_file(unistd.h Z_HAVE_UNISTD_H)
    61 
    62 if(MSVC)
    63     set(CMAKE_DEBUG_POSTFIX "d")
    64     add_definitions(-D_CRT_SECURE_NO_DEPRECATE)
    65     add_definitions(-D_CRT_NONSTDC_NO_DEPRECATE)
    66     include_directories(${CMAKE_CURRENT_SOURCE_DIR})
    67 endif()
    68 
    69 if(NOT CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_CURRENT_BINARY_DIR)
    70     # If we're doing an out of source build and the user has a zconf.h
    71     # in their source tree...
    72     if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h)
    73         message(STATUS "Renaming")
    74         message(STATUS "    ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h")
    75         message(STATUS "to 'zconf.h.included' because this file is included with zlib")
    76         message(STATUS "but CMake generates it automatically in the build directory.")
    77         file(RENAME ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h ${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.included)
    78   endif()
    79 endif()
    80 
    81 set(ZLIB_PC ${CMAKE_CURRENT_BINARY_DIR}/zlib.pc)
    82 configure_file( ${CMAKE_CURRENT_SOURCE_DIR}/zlib.pc.cmakein
    83 		${ZLIB_PC} @ONLY)
    84 configure_file(	${CMAKE_CURRENT_SOURCE_DIR}/zconf.h.cmakein
    85 		${CMAKE_CURRENT_BINARY_DIR}/zconf.h @ONLY)
    86 include_directories(${CMAKE_CURRENT_BINARY_DIR} ${CMAKE_SOURCE_DIR})
    87 
    88 
    89 #============================================================================
    90 # zlib
    91 #============================================================================
    92 
    93 set(ZLIB_PUBLIC_HDRS
    94     ${CMAKE_CURRENT_BINARY_DIR}/zconf.h
    95     zlib.h
    96 )
    97 set(ZLIB_PRIVATE_HDRS
    98     crc32.h
    99     deflate.h
   100     gzguts.h
   101     inffast.h
   102     inffixed.h
   103     inflate.h
   104     inftrees.h
   105     trees.h
   106     zutil.h
   107 )
   108 set(ZLIB_SRCS
   109     adler32.c
   110     compress.c
   111     crc32.c
   112     deflate.c
   113     gzclose.c
   114     gzlib.c
   115     gzread.c
   116     gzwrite.c
   117     inflate.c
   118     infback.c
   119     inftrees.c
   120     inffast.c
   121     trees.c
   122     uncompr.c
   123     zutil.c
   124 )
   125 
   126 if(NOT MINGW)
   127     set(ZLIB_DLL_SRCS
   128         win32/zlib1.rc # If present will override custom build rule below.
   129     )
   130 endif()
   131 
   132 if(CMAKE_COMPILER_IS_GNUCC)
   133     if(ASM686)
   134         set(ZLIB_ASMS contrib/asm686/match.S)
   135     elseif (AMD64)
   136         set(ZLIB_ASMS contrib/amd64/amd64-match.S)
   137     endif ()
   138 
   139 	if(ZLIB_ASMS)
   140 		add_definitions(-DASMV)
   141 		set_source_files_properties(${ZLIB_ASMS} PROPERTIES LANGUAGE C COMPILE_FLAGS -DNO_UNDERLINE)
   142 	endif()
   143 endif()
   144 
   145 if(MSVC)
   146     if(ASM686)
   147 		ENABLE_LANGUAGE(ASM_MASM)
   148         set(ZLIB_ASMS
   149 			contrib/masmx86/inffas32.asm
   150 			contrib/masmx86/match686.asm
   151 		)
   152     elseif (AMD64)
   153 		ENABLE_LANGUAGE(ASM_MASM)
   154         set(ZLIB_ASMS
   155 			contrib/masmx64/gvmat64.asm
   156 			contrib/masmx64/inffasx64.asm
   157 		)
   158     endif()
   159 
   160 	if(ZLIB_ASMS)
   161 		add_definitions(-DASMV -DASMINF)
   162 	endif()
   163 endif()
   164 
   165 # parse the full version number from zlib.h and include in ZLIB_FULL_VERSION
   166 file(READ ${CMAKE_CURRENT_SOURCE_DIR}/zlib.h _zlib_h_contents)
   167 string(REGEX REPLACE ".*#define[ \t]+ZLIB_VERSION[ \t]+\"([-0-9A-Za-z.]+)\".*"
   168     "\\1" ZLIB_FULL_VERSION ${_zlib_h_contents})
   169 
   170 if(MINGW)
   171     # This gets us DLL resource information when compiling on MinGW.
   172     if(NOT CMAKE_RC_COMPILER)
   173         set(CMAKE_RC_COMPILER windres.exe)
   174     endif()
   175 
   176     add_custom_command(OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
   177                        COMMAND ${CMAKE_RC_COMPILER}
   178                             -D GCC_WINDRES
   179                             -I ${CMAKE_CURRENT_SOURCE_DIR}
   180                             -I ${CMAKE_CURRENT_BINARY_DIR}
   181                             -o ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj
   182                             -i ${CMAKE_CURRENT_SOURCE_DIR}/win32/zlib1.rc)
   183     set(ZLIB_DLL_SRCS ${CMAKE_CURRENT_BINARY_DIR}/zlib1rc.obj)
   184 endif(MINGW)
   185 
   186 add_library(zlib SHARED ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_DLL_SRCS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
   187 add_library(zlibstatic STATIC ${ZLIB_SRCS} ${ZLIB_ASMS} ${ZLIB_PUBLIC_HDRS} ${ZLIB_PRIVATE_HDRS})
   188 set_target_properties(zlib PROPERTIES DEFINE_SYMBOL ZLIB_DLL)
   189 set_target_properties(zlib PROPERTIES SOVERSION 1)
   190 
   191 if(NOT CYGWIN)
   192     # This property causes shared libraries on Linux to have the full version
   193     # encoded into their final filename.  We disable this on Cygwin because
   194     # it causes cygz-${ZLIB_FULL_VERSION}.dll to be created when cygz.dll
   195     # seems to be the default.
   196     #
   197     # This has no effect with MSVC, on that platform the version info for
   198     # the DLL comes from the resource file win32/zlib1.rc
   199     set_target_properties(zlib PROPERTIES VERSION ${ZLIB_FULL_VERSION})
   200 endif()
   201 
   202 if(UNIX)
   203     # On unix-like platforms the library is almost always called libz
   204    set_target_properties(zlib zlibstatic PROPERTIES OUTPUT_NAME z)
   205    if(NOT APPLE)
   206      set_target_properties(zlib PROPERTIES LINK_FLAGS "-Wl,--version-script,\"${CMAKE_CURRENT_SOURCE_DIR}/zlib.map\"")
   207    endif()
   208 elseif(BUILD_SHARED_LIBS AND WIN32)
   209     # Creates zlib1.dll when building shared library version
   210     set_target_properties(zlib PROPERTIES SUFFIX "1.dll")
   211 endif()
   212 
   213 if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL )
   214     install(TARGETS zlib zlibstatic
   215         RUNTIME DESTINATION "${INSTALL_BIN_DIR}"
   216         ARCHIVE DESTINATION "${INSTALL_LIB_DIR}"
   217         LIBRARY DESTINATION "${INSTALL_LIB_DIR}" )
   218 endif()
   219 if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL )
   220     install(FILES ${ZLIB_PUBLIC_HDRS} DESTINATION "${INSTALL_INC_DIR}")
   221 endif()
   222 if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
   223     install(FILES zlib.3 DESTINATION "${INSTALL_MAN_DIR}/man3")
   224 endif()
   225 if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL )
   226     install(FILES ${ZLIB_PC} DESTINATION "${INSTALL_PKGCONFIG_DIR}")
   227 endif()
   228 
   229 #============================================================================
   230 # Example binaries
   231 #============================================================================
   232 
   233 add_executable(example test/example.c)
   234 target_link_libraries(example zlib)
   235 add_test(example example)
   236 
   237 add_executable(minigzip test/minigzip.c)
   238 target_link_libraries(minigzip zlib)
   239 
   240 if(HAVE_OFF64_T)
   241     add_executable(example64 test/example.c)
   242     target_link_libraries(example64 zlib)
   243     set_target_properties(example64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
   244     add_test(example64 example64)
   245 
   246     add_executable(minigzip64 test/minigzip.c)
   247     target_link_libraries(minigzip64 zlib)
   248     set_target_properties(minigzip64 PROPERTIES COMPILE_FLAGS "-D_FILE_OFFSET_BITS=64")
   249 endif()