Patrick Scott | 5f6bd84 | 2010-06-28 16:55:16 -0400 | [diff] [blame^] | 1 | cmake_minimum_required(VERSION 2.4.3) |
| 2 | set(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true) |
| 3 | |
| 4 | if(UNIX AND NOT DEFINED CMAKE_BUILD_TYPE) |
| 5 | set(CMAKE_BUILD_TYPE "RelWithDebInfo" CACHE STRING |
| 6 | "Choose the type of build, options are: |
| 7 | None(CMAKE_CXX_FLAGS or CMAKE_C_FLAGS used) |
| 8 | Debug |
| 9 | Release |
| 10 | RelWithDebInfo |
| 11 | MinSizeRel.") |
| 12 | endif() |
| 13 | |
| 14 | project(libpng C) |
| 15 | enable_testing() |
| 16 | |
| 17 | # Copyright (C) 2007-2010 Glenn Randers-Pehrson |
| 18 | |
| 19 | # This code is released under the libpng license. |
| 20 | # For conditions of distribution and use, see the disclaimer |
| 21 | # and license in png.h |
| 22 | |
| 23 | set(PNGLIB_MAJOR 1) |
| 24 | set(PNGLIB_MINOR 2) |
| 25 | set(PNGLIB_RELEASE 44) |
| 26 | set(PNGLIB_NAME libpng${PNGLIB_MAJOR}${PNGLIB_MINOR}) |
| 27 | set(PNGLIB_VERSION ${PNGLIB_MAJOR}.${PNGLIB_MINOR}.${PNGLIB_RELEASE}) |
| 28 | |
| 29 | # needed packages |
| 30 | find_package(ZLIB REQUIRED) |
| 31 | include_directories(${ZLIB_INCLUDE_DIR}) |
| 32 | |
| 33 | if(NOT WIN32) |
| 34 | find_library(M_LIBRARY |
| 35 | NAMES m |
| 36 | PATHS /usr/lib /usr/local/lib |
| 37 | ) |
| 38 | if(NOT M_LIBRARY) |
| 39 | message(STATUS |
| 40 | "math library 'libm' not found - floating point support disabled") |
| 41 | endif() |
| 42 | else() |
| 43 | # not needed on windows |
| 44 | set(M_LIBRARY "") |
| 45 | endif() |
| 46 | |
| 47 | # COMMAND LINE OPTIONS |
| 48 | if(DEFINED PNG_SHARED) |
| 49 | option(PNG_SHARED "Build shared lib" ${PNG_SHARED}) |
| 50 | else() |
| 51 | option(PNG_SHARED "Build shared lib" ON) |
| 52 | endif() |
| 53 | if(DEFINED PNG_STATIC) |
| 54 | option(PNG_STATIC "Build static lib" ${PNG_STATIC}) |
| 55 | else() |
| 56 | option(PNG_STATIC "Build static lib" ON) |
| 57 | endif() |
| 58 | |
| 59 | if(MINGW) |
| 60 | option(PNG_TESTS "Build pngtest" NO) |
| 61 | else() |
| 62 | option(PNG_TESTS "Build pngtest" YES) |
| 63 | endif() |
| 64 | |
| 65 | option(PNG_NO_CONSOLE_IO "FIXME" YES) |
| 66 | option(PNG_NO_STDIO "FIXME" YES) |
| 67 | option(PNG_DEBUG "Build with debug output" NO) |
| 68 | option(PNGARG "FIXME" YES) |
| 69 | #TODO: |
| 70 | # PNG_CONSOLE_IO_SUPPORTED |
| 71 | |
| 72 | # maybe needs improving, but currently I don't know when we can enable what :) |
| 73 | set(png_asm_tmp "OFF") |
| 74 | if(NOT WIN32) |
| 75 | find_program(uname_executable NAMES uname PATHS /bin /usr/bin /usr/local/bin) |
| 76 | if(uname_executable) |
| 77 | exec_program(${uname_executable} |
| 78 | ARGS --machine OUTPUT_VARIABLE uname_output) |
| 79 | if("uname_output" MATCHES "^.*i[1-9]86.*$") |
| 80 | set(png_asm_tmp "ON") |
| 81 | else("uname_output" MATCHES "^.*i[1-9]86.*$") |
| 82 | set(png_asm_tmp "OFF") |
| 83 | endif("uname_output" MATCHES "^.*i[1-9]86.*$") |
| 84 | endif(uname_executable) |
| 85 | else() |
| 86 | # this env var is normally only set on win64 |
| 87 | set(TEXT "ProgramFiles(x86)") |
| 88 | if("$ENV{${TEXT}}" STREQUAL "") |
| 89 | set(png_asm_tmp "ON") |
| 90 | endif("$ENV{${TEXT}}" STREQUAL "") |
| 91 | endif() |
| 92 | |
| 93 | # SET LIBNAME |
| 94 | set(PNG_LIB_NAME png${PNGLIB_MAJOR}${PNGLIB_MINOR}) |
| 95 | |
| 96 | # to distinguish between debug and release lib |
| 97 | set(CMAKE_DEBUG_POSTFIX "d") |
| 98 | |
| 99 | |
| 100 | # OUR SOURCES |
| 101 | set(libpng_sources |
| 102 | png.h |
| 103 | pngconf.h |
| 104 | png.c |
| 105 | pngerror.c |
| 106 | pngget.c |
| 107 | pngmem.c |
| 108 | pngpread.c |
| 109 | pngread.c |
| 110 | pngrio.c |
| 111 | pngrtran.c |
| 112 | pngrutil.c |
| 113 | pngset.c |
| 114 | pngtrans.c |
| 115 | pngwio.c |
| 116 | pngwrite.c |
| 117 | pngwtran.c |
| 118 | pngwutil.c |
| 119 | ) |
| 120 | set(pngtest_sources |
| 121 | pngtest.c |
| 122 | ) |
| 123 | # SOME NEEDED DEFINITIONS |
| 124 | |
| 125 | add_definitions(-DPNG_CONFIGURE_LIBPNG) |
| 126 | |
| 127 | if(_AIX) |
| 128 | add_definitions(-D_ALL_SOURCE) |
| 129 | endif(_AIX) |
| 130 | |
| 131 | if(MSVC) |
| 132 | add_definitions(-DPNG_NO_MODULEDEF -D_CRT_SECURE_NO_DEPRECATE) |
| 133 | endif(MSVC) |
| 134 | |
| 135 | if(PNG_SHARED OR NOT MSVC) |
| 136 | #if building msvc static this has NOT to be defined |
| 137 | add_definitions(-DZLIB_DLL) |
| 138 | endif() |
| 139 | |
| 140 | add_definitions(-DLIBPNG_NO_MMX) |
| 141 | add_definitions(-DPNG_NO_MMX_CODE) |
| 142 | |
| 143 | |
| 144 | if(PNG_CONSOLE_IO_SUPPORTED) |
| 145 | add_definitions(-DPNG_CONSOLE_IO_SUPPORTED) |
| 146 | endif() |
| 147 | |
| 148 | if(PNG_NO_CONSOLE_IO) |
| 149 | add_definitions(-DPNG_NO_CONSOLE_IO) |
| 150 | endif() |
| 151 | |
| 152 | if(PNG_NO_STDIO) |
| 153 | add_definitions(-DPNG_NO_STDIO) |
| 154 | endif() |
| 155 | |
| 156 | if(PNG_DEBUG) |
| 157 | add_definitions(-DPNG_DEBUG) |
| 158 | endif() |
| 159 | |
| 160 | if(NOT M_LIBRARY AND NOT WIN32) |
| 161 | add_definitions(-DPNG_NO_FLOATING_POINT_SUPPORTED) |
| 162 | endif() |
| 163 | |
| 164 | # NOW BUILD OUR TARGET |
| 165 | include_directories(${CMAKE_CURRENT_SOURCE_DIR} ${ZLIB_INCLUDE_DIR}) |
| 166 | |
| 167 | if(PNG_SHARED) |
| 168 | add_library(${PNG_LIB_NAME} SHARED ${libpng_sources}) |
| 169 | if(MSVC) |
| 170 | # msvc does not append 'lib' - do it here to have consistent name |
| 171 | set_target_properties(${PNG_LIB_NAME} PROPERTIES PREFIX "lib") |
| 172 | endif() |
| 173 | target_link_libraries(${PNG_LIB_NAME} ${ZLIB_LIBRARY} ${M_LIBRARY}) |
| 174 | endif() |
| 175 | |
| 176 | if(PNG_STATIC) |
| 177 | # does not work without changing name |
| 178 | set(PNG_LIB_NAME_STATIC ${PNG_LIB_NAME}_static) |
| 179 | add_library(${PNG_LIB_NAME_STATIC} STATIC ${libpng_sources}) |
| 180 | if(MSVC) |
| 181 | # msvc does not append 'lib' - do it here to have consistent name |
| 182 | set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES PREFIX "lib") |
| 183 | endif() |
| 184 | endif() |
| 185 | |
| 186 | |
| 187 | if(PNG_SHARED AND WIN32) |
| 188 | set_target_properties(${PNG_LIB_NAME} PROPERTIES DEFINE_SYMBOL PNG_BUILD_DLL) |
| 189 | endif() |
| 190 | |
| 191 | if(PNG_TESTS AND PNG_SHARED) |
| 192 | # does not work with msvc due to png_lib_ver issue |
| 193 | add_executable(pngtest ${pngtest_sources}) |
| 194 | target_link_libraries(pngtest ${PNG_LIB_NAME}) |
| 195 | add_test(pngtest pngtest ${CMAKE_CURRENT_SOURCE_DIR}/pngtest.png) |
| 196 | endif() |
| 197 | |
| 198 | |
| 199 | # CREATE PKGCONFIG FILES |
| 200 | # we use the same files like ./configure, so we have to set its vars |
| 201 | set(prefix ${CMAKE_INSTALL_PREFIX}) |
| 202 | set(exec_prefix ${CMAKE_INSTALL_PREFIX}) |
| 203 | set(libdir ${CMAKE_INSTALL_PREFIX}/lib) |
| 204 | set(includedir ${CMAKE_INSTALL_PREFIX}/include) |
| 205 | |
| 206 | configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng.pc.in |
| 207 | ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc) |
| 208 | configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng-config.in |
| 209 | ${CMAKE_CURRENT_BINARY_DIR}/libpng-config) |
| 210 | configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng.pc.in |
| 211 | ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc) |
| 212 | configure_file(${CMAKE_CURRENT_SOURCE_DIR}/scripts/libpng-config.in |
| 213 | ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config) |
| 214 | |
| 215 | # SET UP LINKS |
| 216 | if(PNG_SHARED) |
| 217 | set_target_properties(${PNG_LIB_NAME} PROPERTIES |
| 218 | # VERSION 0.${PNGLIB_RELEASE}.1.2.44 |
| 219 | VERSION 0.${PNGLIB_RELEASE}.0 |
| 220 | SOVERSION 0 |
| 221 | CLEAN_DIRECT_OUTPUT 1) |
| 222 | endif() |
| 223 | if(PNG_STATIC) |
| 224 | if(NOT WIN32) |
| 225 | # that's uncool on win32 - it overwrites our static import lib... |
| 226 | set_target_properties(${PNG_LIB_NAME_STATIC} PROPERTIES |
| 227 | OUTPUT_NAME ${PNG_LIB_NAME} |
| 228 | CLEAN_DIRECT_OUTPUT 1) |
| 229 | endif() |
| 230 | endif() |
| 231 | |
| 232 | # INSTALL |
| 233 | if(NOT SKIP_INSTALL_LIBRARIES AND NOT SKIP_INSTALL_ALL ) |
| 234 | if(PNG_SHARED) |
| 235 | install(TARGETS ${PNG_LIB_NAME} |
| 236 | RUNTIME DESTINATION bin |
| 237 | LIBRARY DESTINATION lib |
| 238 | ARCHIVE DESTINATION lib) |
| 239 | endif() |
| 240 | if(PNG_STATIC) |
| 241 | install(TARGETS ${PNG_LIB_NAME_STATIC} |
| 242 | LIBRARY DESTINATION lib |
| 243 | ARCHIVE DESTINATION lib) |
| 244 | endif() |
| 245 | endif() |
| 246 | |
| 247 | if(NOT SKIP_INSTALL_HEADERS AND NOT SKIP_INSTALL_ALL ) |
| 248 | install(FILES png.h pngconf.h DESTINATION include) |
| 249 | install(FILES png.h pngconf.h DESTINATION include/${PNGLIB_NAME}) |
| 250 | endif() |
| 251 | if(NOT SKIP_INSTALL_EXECUTABLES AND NOT SKIP_INSTALL_ALL ) |
| 252 | install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/libpng-config DESTINATION bin) |
| 253 | install(PROGRAMS ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config |
| 254 | DESTINATION bin) |
| 255 | endif() |
| 256 | if(NOT SKIP_INSTALL_FILES AND NOT SKIP_INSTALL_ALL ) |
| 257 | # Install man pages |
| 258 | install(FILES libpng.3 libpngpf.3 DESTINATION man/man3) |
| 259 | install(FILES png.5 DESTINATION man/man5) |
| 260 | # Install pkg-config files |
| 261 | install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng.pc |
| 262 | DESTINATION lib/pkgconfig) |
| 263 | install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libpng-config |
| 264 | DESTINATION bin) |
| 265 | install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}.pc |
| 266 | DESTINATION lib/pkgconfig) |
| 267 | install(FILES ${CMAKE_CURRENT_BINARY_DIR}/${PNGLIB_NAME}-config |
| 268 | DESTINATION bin) |
| 269 | endif() |
| 270 | |
| 271 | # what's with libpng.txt and all the extra files? |
| 272 | |
| 273 | |
| 274 | # UNINSTALL |
| 275 | # do we need this? |
| 276 | |
| 277 | |
| 278 | # DIST |
| 279 | # do we need this? |
| 280 | |
| 281 | # to create msvc import lib for mingw compiled shared lib |
| 282 | # pexports libpng.dll > libpng.def |
| 283 | # lib /def:libpng.def /machine:x86 |
| 284 | |