CMakeLists.txt

   1 #
   2 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12 FATAL_ERROR)
   3 if(POLICY CMP0074)
   4   cmake_policy(SET CMP0074 NEW) #3.12.0 `find_package()`` uses ``<PackageName>_ROOT`` variables.
   5 endif()
   6 #
   7 PROJECT(libarchive C)
   8 #
   9 SET(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/build/cmake")
  10 if(NOT CMAKE_RUNTIME_OUTPUT_DIRECTORY)
  11   set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${libarchive_BINARY_DIR}/bin)
  12 endif()
  13 #
  14 # Set the Build type for make based generators.
  15 # You can choose following types:
  16 #   Debug          : Debug build
  17 #   Release        : Release build
  18 #   RelWithDebInfo : Release build with Debug Info
  19 #   MinSizeRel     : Release Min Size build
  20 IF(NOT CMAKE_BUILD_TYPE)
  21   SET(CMAKE_BUILD_TYPE "Release" CACHE STRING "Build Type" FORCE)
  22 ENDIF(NOT CMAKE_BUILD_TYPE)
  23 # Set a value type to properly display CMAKE_BUILD_TYPE on GUI if the
  24 # value type is "UNINITIALIZED".
  25 GET_PROPERTY(cached_type CACHE CMAKE_BUILD_TYPE PROPERTY TYPE)
  26 IF("${cached_type}" STREQUAL "UNINITIALIZED")
  27   SET(CMAKE_BUILD_TYPE "${CMAKE_BUILD_TYPE}" CACHE STRING "Build Type" FORCE)
  28 ENDIF("${cached_type}" STREQUAL "UNINITIALIZED")
  29 # Check the Build Type.
  30 IF(NOT "${CMAKE_BUILD_TYPE}"
  31        MATCHES "^(Debug|Release|RelWithDebInfo|MinSizeRel)\$")
  32   MESSAGE(FATAL_ERROR
  33           "Unknown keyword for CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}\n"
  34           "Acceptable keywords: Debug,Release,RelWithDebInfo,MinSizeRel")
  35 ENDIF(NOT "${CMAKE_BUILD_TYPE}"
  36           MATCHES "^(Debug|Release|RelWithDebInfo|MinSizeRel)\$")
  37
  38 # On MacOS, prefer MacPorts libraries to system libraries.
  39 # I haven't come up with a compelling argument for this to be conditional.
  40 list(APPEND CMAKE_PREFIX_PATH /opt/local)
  41 # Enable @rpath in the install name.
  42 # detail in "cmake  --help-policy CMP0042"
  43 SET(CMAKE_MACOSX_RPATH ON)
  44
  45 #
  46 # Version - read from 'version' file.
  47 #
  48 FILE(STRINGS ${CMAKE_CURRENT_SOURCE_DIR}/build/version _version)
  49 STRING(REGEX REPLACE
  50  "^([0-9])[0-9][0-9][0-9][0-9][0-9][0-9][a-z]*$" "\\1" _major ${_version})
  51 STRING(REGEX REPLACE
  52  "^[0-9]([0-9][0-9][0-9])[0-9][0-9][0-9][a-z]*$" "\\1" _minor ${_version})
  53 STRING(REGEX REPLACE
  54  "^[0-9][0-9][0-9][0-9]([0-9][0-9][0-9])[a-z]*$" "\\1" _revision ${_version})
  55 STRING(REGEX REPLACE
  56  "^[0-9][0-9][0-9][0-9][0-9][0-9][0-9]([a-z]*)$" "\\1" _quality ${_version})
  57 SET(_version_number ${_major}${_minor}${_revision})
  58 STRING(REGEX REPLACE "[0]*([^0]*[0-9])$" "\\1" _trimmed_minor ${_minor})
  59 STRING(REGEX REPLACE "[0]*([^0]*[0-9])$" "\\1" _trimmed_revision ${_revision})
  60 #
  61 SET(VERSION                    "${_major}.${_trimmed_minor}.${_trimmed_revision}${_quality}")
  62 SET(BSDCPIO_VERSION_STRING     "${VERSION}")
  63 SET(BSDTAR_VERSION_STRING      "${VERSION}")
  64 SET(BSDCAT_VERSION_STRING      "${VERSION}")
  65 SET(LIBARCHIVE_VERSION_NUMBER  "${_version_number}")
  66 SET(LIBARCHIVE_VERSION_STRING  "${VERSION}")
  67
  68 # INTERFACE_VERSION increments with every release
  69 # libarchive 2.7 == interface version 9 = 2 + 7
  70 # libarchive 2.8 == interface version 10 = 2 + 8
  71 # libarchive 2.9 == interface version 11 = 2 + 9
  72 # libarchive 3.0 == interface version 12
  73 # libarchive 3.1 == interface version 13
  74 math(EXPR INTERFACE_VERSION  "13 + ${_minor}")
  75
  76 # Set SOVERSION == Interface version
  77 # ?? Should there be more here ??
  78 SET(SOVERSION "${INTERFACE_VERSION}")
  79
  80 # Enalbe CMAKE_PUSH_CHECK_STATE() and CMAKE_POP_CHECK_STATE() macros
  81 # saving and restoring the state of the variables.
  82 INCLUDE(CMakePushCheckState)
  83
  84 # Initialize the state of the variables. This initialization is not
  85 # necessary but this shows you what value the variables initially have.
  86 SET(CMAKE_REQUIRED_DEFINITIONS)
  87 SET(CMAKE_REQUIRED_INCLUDES)
  88 SET(CMAKE_REQUIRED_LIBRARIES)
  89 SET(CMAKE_REQUIRED_FLAGS)
  90 if (CMAKE_BUILD_TYPE STREQUAL "Debug")
  91   OPTION(ENABLE_WERROR "Treat warnings as errors - default is ON for Debug, OFF otherwise." ON)
  92 else ()
  93   OPTION(ENABLE_WERROR "Treat warnings as errors - default is ON for Debug, OFF otherwise." OFF)
  94 endif ()
  95
  96 # Especially for early development, we want to be a little
  97 # aggressive about diagnosing build problems; this can get
  98 # relaxed somewhat in final shipping versions.
  99 IF (CMAKE_C_COMPILER_ID MATCHES "^GNU$")
 100   SET(CMAKE_REQUIRED_FLAGS "-Wall -Wformat -Wformat-security")
 101   #################################################################
 102   # Set compile flags for all build types.
 103   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wformat -Wformat-security")
 104   if (ENABLE_WERROR)
 105     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
 106   endif ()
 107   #################################################################
 108   # Set compile flags for debug build.
 109   # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug"
 110   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wextra")
 111   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wunused")
 112   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wshadow")
 113   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wmissing-prototypes")
 114   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wcast-qual")
 115 ENDIF (CMAKE_C_COMPILER_ID MATCHES "^GNU$")
 116 IF (CMAKE_C_COMPILER_ID MATCHES "^Clang$")
 117   SET(CMAKE_REQUIRED_FLAGS "-Wall -Wformat -Wformat-security")
 118   #################################################################
 119   # Set compile flags for all build types.
 120   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wformat -Wformat-security")
 121   if (ENABLE_WERROR)
 122     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
 123   endif ()
 124   #################################################################
 125   # Set compile flags for debug build.
 126   # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug"
 127   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g")
 128   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wextra")
 129   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wunused")
 130   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wshadow")
 131   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wmissing-prototypes")
 132   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wcast-qual")
 133 ENDIF (CMAKE_C_COMPILER_ID MATCHES "^Clang$")
 134 IF (CMAKE_C_COMPILER_ID MATCHES "^XL$")
 135   SET(CMAKE_C_COMPILER "xlc_r")
 136   SET(CMAKE_REQUIRED_FLAGS "-qflag=e:e -qformat=sec")
 137   #################################################################
 138   # Set compile flags for all build types.
 139   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -qflag=e:e -qformat=sec")
 140   if (ENABLE_WERROR)
 141     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -qhalt=w")
 142   endif ()
 143   #################################################################
 144   # Set compile flags for debug build.
 145   # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug"
 146   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g")
 147   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -qflag=w:w")
 148   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -qinfo=pro:use")
 149 ENDIF(CMAKE_C_COMPILER_ID MATCHES "^XL$")
 150 IF (MSVC)
 151   if (ENABLE_WERROR)
 152     # /WX option is the same as gcc's -Werror option.
 153     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX")
 154   endif ()
 155   #################################################################
 156   # Set compile flags for debug build.
 157   # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug"
 158   # Enable level 4 C4061: The enumerate has no associated handler in a switch
 159   #                       statement.
 160   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /we4061")
 161   # Enable level 4 C4254: A larger bit field was assigned to a smaller bit
 162   #                       field.
 163   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /we4254")
 164   # Enable level 4 C4295: An array was initialized but the last character in
 165   #                       the array is not a null; accessing the array may
 166   #                       produce unexpected results.
 167   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /we4295")
 168   # Enable level 4 C4296: An unsigned variable was used in a comparison
 169   #                       operation with zero.
 170   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /we4296")
 171   # Enable level 4 C4389: An operation involved signed and unsigned variables.
 172   #                       This could result in a loss of data.
 173   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /we4389")
 174   # Enable level 4 C4505: The given function is local and not referenced in
 175   #                       the body of the module; therefore, the function is
 176   #                       dead code.
 177   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /we4505")
 178   # Enable level 4 C4514: The optimizer removed an inline function that is not
 179   #                       called.
 180   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /we4514")
 181   # Enable level 4 C4702: Unreachable code.
 182   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /we4702")
 183   # Enable level 4 C4706: The test value in a conditional expression was the
 184   #                       result of an assignment.
 185   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /we4706")
 186   # /Oi option enables built-in functions.
 187   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /Oi")
 188   #################################################################
 189   # Set compile flags for release build.
 190   SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /Oi")
 191 ENDIF (MSVC)
 192
 193 # Enable CTest/CDash support
 194 include(CTest)
 195
 196 OPTION(ENABLE_NETTLE "Enable use of Nettle" ON)
 197 OPTION(ENABLE_OPENSSL "Enable use of OpenSSL" ON)
 198 OPTION(ENABLE_LIBB2 "Enable the use of the system LIBB2 library if found" ON)
 199 OPTION(ENABLE_LZ4 "Enable the use of the system LZ4 library if found" ON)
 200 OPTION(ENABLE_LZO "Enable the use of the system LZO library if found" OFF)
 201 OPTION(ENABLE_LZMA "Enable the use of the system LZMA library if found" ON)
 202 OPTION(ENABLE_ZSTD "Enable the use of the system zstd library if found" ON)
 203
 204 OPTION(ENABLE_ZLIB "Enable the use of the system ZLIB library if found" ON)
 205 OPTION(ENABLE_BZip2 "Enable the use of the system BZip2 library if found" ON)
 206 OPTION(ENABLE_LIBXML2 "Enable the use of the system libxml2 library if found" ON)
 207 OPTION(ENABLE_EXPAT "Enable the use of the system EXPAT library if found" ON)
 208 OPTION(ENABLE_PCREPOSIX "Enable the use of the system PCREPOSIX library if found" ON)
 209 OPTION(ENABLE_LibGCC "Enable the use of the system LibGCC library if found" ON)
 210 # CNG is used for encrypt/decrypt Zip archives on Windows.
 211 OPTION(ENABLE_CNG "Enable the use of CNG(Crypto Next Generation)" ON)
 212
 213 OPTION(ENABLE_TAR "Enable tar building" ON)
 214 OPTION(ENABLE_TAR_SHARED "Enable dynamic build of tar" FALSE)
 215 OPTION(ENABLE_CPIO "Enable cpio building" ON)
 216 OPTION(ENABLE_CPIO_SHARED "Enable dynamic build of cpio" FALSE)
 217 OPTION(ENABLE_CAT "Enable cat building" ON)
 218 OPTION(ENABLE_CAT_SHARED "Enable dynamic build of cat" FALSE)
 219 OPTION(ENABLE_XATTR "Enable extended attribute support" ON)
 220 OPTION(ENABLE_ACL "Enable ACL support" ON)
 221 OPTION(ENABLE_ICONV "Enable iconv support" ON)
 222 OPTION(ENABLE_TEST "Enable unit and regression tests" ON)
 223 OPTION(ENABLE_COVERAGE "Enable code coverage (GCC only, automatically sets ENABLE_TEST to ON)" FALSE)
 224 OPTION(ENABLE_INSTALL "Enable installing of libraries" ON)
 225
 226 SET(POSIX_REGEX_LIB "AUTO" CACHE STRING "Choose what library should provide POSIX regular expression support")
 227 SET(ENABLE_SAFESEH "AUTO" CACHE STRING "Enable use of /SAFESEH linker flag (MSVC only)")
 228 SET(WINDOWS_VERSION "WIN7" CACHE STRING "Set Windows version to use (Windows only)")
 229
 230 IF(ENABLE_COVERAGE)
 231         include(LibarchiveCodeCoverage)
 232 ENDIF(ENABLE_COVERAGE)
 233
 234 IF(ENABLE_TEST)
 235         ENABLE_TESTING()
 236 ENDIF(ENABLE_TEST)
 237
 238 IF(WIN32)
 239   IF(WINDOWS_VERSION STREQUAL "WIN8")
 240     SET(NTDDI_VERSION 0x06020000)
 241     SET(_WIN32_WINNT 0x0602)
 242     SET(WINVER 0x0602)
 243   ELSEIF(WINDOWS_VERSION STREQUAL "WIN7")
 244     SET(NTDDI_VERSION 0x06010000)
 245     SET(_WIN32_WINNT 0x0601)
 246     SET(WINVER 0x0601)
 247   ELSEIF(WINDOWS_VERSION STREQUAL "WS08")
 248     SET(NTDDI_VERSION 0x06000100)
 249     SET(_WIN32_WINNT 0x0600)
 250     SET(WINVER 0x0600)
 251   ELSEIF(WINDOWS_VERSION STREQUAL "VISTA")
 252     SET(NTDDI_VERSION 0x06000000)
 253     SET(_WIN32_WINNT 0x0600)
 254     SET(WINVER 0x0600)
 255   ELSEIF(WINDOWS_VERSION STREQUAL "WS03")
 256     SET(NTDDI_VERSION 0x05020000)
 257     SET(_WIN32_WINNT 0x0502)
 258     SET(WINVER 0x0502)
 259   ELSEIF(WINDOWS_VERSION STREQUAL "WINXP")
 260     SET(NTDDI_VERSION 0x05010000)
 261     SET(_WIN32_WINNT 0x0501)
 262     SET(WINVER 0x0501)
 263   ELSE(WINDOWS_VERSION STREQUAL "WIN8")
 264     # Default to Windows Server 2003 API if we don't recognize the specifier
 265     SET(NTDDI_VERSION 0x05020000)
 266     SET(_WIN32_WINNT 0x0502)
 267     SET(WINVER 0x0502)
 268   ENDIF(WINDOWS_VERSION STREQUAL "WIN8")
 269 ENDIF(WIN32)
 270
 271 IF(MSVC)
 272   IF(ENABLE_SAFESEH STREQUAL "YES")
 273     SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /SAFESEH")
 274     SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SAFESEH")
 275     SET(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} /SAFESEH")
 276     SET(ENV{LDFLAGS} "$ENV{LDFLAGS} /SAFESEH")
 277   ELSEIF(ENABLE_SAFESEH STREQUAL "NO")
 278     SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /SAFESEH:NO")
 279     SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SAFESEH:NO")
 280     SET(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} /SAFESEH:NO")
 281     SET(ENV{LDFLAGS} "$ENV{LDFLAGS} /SAFESEH:NO")
 282   ENDIF(ENABLE_SAFESEH STREQUAL "YES")
 283 ENDIF(MSVC)
 284
 285 IF("${CMAKE_C_PLATFORM_ID}" MATCHES "^(HP-UX)$")
 286   ADD_DEFINITIONS(-D_XOPEN_SOURCE=500) # Ask wchar.h for mbstate_t
 287 ENDIF()
 288
 289 #
 290 INCLUDE(CheckCSourceCompiles)
 291 INCLUDE(CheckCSourceRuns)
 292 INCLUDE(CheckFileOffsetBits)
 293 INCLUDE(CheckFuncs)
 294 INCLUDE(CheckHeaderDirent)
 295 INCLUDE(CheckIncludeFile)
 296 INCLUDE(CheckIncludeFiles)
 297 INCLUDE(CheckLibraryExists)
 298 INCLUDE(CheckStructHasMember)
 299 INCLUDE(CheckSymbolExists)
 300 INCLUDE(CheckTypeExists)
 301 INCLUDE(CheckTypeSize)
 302
 303 #
 304 # Generate list.h
 305 #
 306 MACRO (GENERATE_LIST_H _listfile _cmlist __list_sources)
 307   SET(_argv ${ARGV})
 308   # Remove _listfile and _cmlist from _argv
 309   LIST(REMOVE_AT _argv 0 1)
 310   IF (NOT EXISTS "${_listfile}" OR
 311      ${_cmlist} IS_NEWER_THAN "${_listfile}")
 312
 313     MESSAGE(STATUS "Generating ${_listfile}")
 314     FILE(WRITE ${_listfile} "")
 315     FOREACH (testfile ${_argv})
 316       IF (testfile MATCHES "^test_[^/]+[.]c$")
 317         FILE(STRINGS ${testfile} testvar REGEX "^DEFINE_TEST")
 318         FOREACH (deftest ${testvar})
 319           FILE(APPEND ${_listfile} "${deftest}\n")
 320         ENDFOREACH (deftest)
 321       ENDIF (testfile MATCHES "^test_[^/]+[.]c$")
 322     ENDFOREACH (testfile)
 323
 324   ENDIF (NOT EXISTS "${_listfile}" OR
 325      ${_cmlist} IS_NEWER_THAN "${_listfile}")
 326 ENDMACRO (GENERATE_LIST_H)
 327 #
 328 # Generate installation rules for man pages.
 329 #
 330 MACRO (INSTALL_MAN __mans)
 331   FOREACH (_man ${ARGV})
 332     STRING(REGEX REPLACE "^.+[.]([1-9])" "\\1" _mansect ${_man})
 333     INSTALL(FILES ${_man} DESTINATION "share/man/man${_mansect}")
 334   ENDFOREACH (_man)
 335 ENDMACRO (INSTALL_MAN __mans)
 336 #
 337 # Find out what macro is needed to use libraries on Windows.
 338 #
 339 MACRO (TRY_MACRO_FOR_LIBRARY INCLUDES LIBRARIES
 340        TRY_TYPE SAMPLE_SOURCE MACRO_LIST)
 341   IF(WIN32 AND NOT CYGWIN)
 342     CMAKE_PUSH_CHECK_STATE()    # Save the state of the variables
 343     SET(CMAKE_REQUIRED_INCLUDES ${INCLUDES})
 344     SET(CMAKE_REQUIRED_LIBRARIES ${LIBRARIES})
 345     FOREACH(VAR ${MACRO_LIST})
 346       # Clear ${VAR} from CACHE If the libraries which ${VAR} was
 347       # checked with are changed.
 348       SET(VAR_WITH_LIB "${VAR}_WITH_LIB")
 349       GET_PROPERTY(PREV_VAR_WITH_LIB VARIABLE PROPERTY ${VAR_WITH_LIB})
 350       IF(NOT "${PREV_VAR_WITH_LIB}" STREQUAL "${LIBRARIES}")
 351         UNSET(${VAR} CACHE)
 352       ENDIF(NOT "${PREV_VAR_WITH_LIB}" STREQUAL "${LIBRARIES}")
 353       # Check if the library can be used with the macro.
 354       IF("${TRY_TYPE}" MATCHES "COMPILES")
 355         CHECK_C_SOURCE_COMPILES("${SAMPLE_SOURCE}" ${VAR})
 356       ELSEIF("${TRY_TYPE}" MATCHES "RUNS")
 357         CHECK_C_SOURCE_RUNS("${SAMPLE_SOURCE}" ${VAR})
 358       ELSE("${TRY_TYPE}" MATCHES "COMPILES")
 359         MESSAGE(FATAL_ERROR "UNKNOWN KEYWORD \"${TRY_TYPE}\" FOR TRY_TYPE")
 360       ENDIF("${TRY_TYPE}" MATCHES "COMPILES")
 361       # Save the libraries which ${VAR} is checked with.
 362       SET(${VAR_WITH_LIB} "${LIBRARIES}" CACHE INTERNAL
 363           "Macro ${VAR} is checked with")
 364     ENDFOREACH(VAR)
 365     CMAKE_POP_CHECK_STATE()     # Restore the state of the variables
 366   ENDIF(WIN32 AND NOT CYGWIN)
 367 ENDMACRO (TRY_MACRO_FOR_LIBRARY)
 368 #
 369 # Check compress/decompress libraries
 370 #
 371 IF(WIN32 AND NOT CMAKE_CL_64 AND NOT CYGWIN)
 372   # GnuWin32 is only for Win32, not Win64.
 373   SET(__GNUWIN32PATH "C:/Program Files/GnuWin32")
 374 ENDIF(WIN32 AND NOT CMAKE_CL_64 AND NOT CYGWIN)
 375 IF(DEFINED __GNUWIN32PATH AND EXISTS "${__GNUWIN32PATH}")
 376   # You have to add a path availabel DLL file into PATH environment variable.
 377   # Maybe DLL path is "C:/Program Files/GnuWin32/bin".
 378   # The zlib and the bzip2 Setup program have installed programs and DLLs into
 379   # "C:/Program Files/GnuWin32" by default.
 380   # This is convenience setting for Windows.
 381   SET(CMAKE_PREFIX_PATH ${__GNUWIN32PATH} $(CMAKE_PREFIX_PATH))
 382   #
 383   # If you didn't use Setup program or installed into nonstandard path,
 384   # cmake cannot find out your zlib or bzip2 libraries and include files,
 385   # you should execute cmake with  -DCMAKE_PREFIX_PATH option.
 386   #   e.g.
 387   #     cmake -DCMAKE_PREFIX_PATH=<your-GnuWin32-path> <path-to-source>
 388   #
 389   # If compiling error occurred in zconf.h, You may need patch to zconf.h.
 390   #--- zconf.h.orig     2005-07-21 00:40:26.000000000
 391   #+++ zconf.h  2009-01-19 11:39:10.093750000
 392   #@@ -286,7 +286,7 @@
 393   #
 394   # #if 1           /* HAVE_UNISTD_H -- this line is updated by ./configure */
 395   # #  include <sys/types.h> /* for off_t */
 396   #-#  include <unistd.h>    /* for SEEK_* and off_t */
 397   #+#  include <stdio.h>    /* for SEEK_* and off_t */
 398   # #  ifdef VMS
 399   # #    include <unixio.h>   /* for off_t */
 400   # #  endif
 401 ENDIF(DEFINED __GNUWIN32PATH AND EXISTS "${__GNUWIN32PATH}")
 402
 403 SET(ADDITIONAL_LIBS "")
 404 #
 405 # Find ZLIB
 406 #
 407 IF(ENABLE_ZLIB)
 408   FIND_PACKAGE(ZLIB)
 409 ELSE()
 410   SET(ZLIB_FOUND FALSE) # Override cached value
 411 ENDIF()
 412 IF(ZLIB_FOUND)
 413   SET(HAVE_LIBZ 1)
 414   SET(HAVE_ZLIB_H 1)
 415   INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIR})
 416   LIST(APPEND ADDITIONAL_LIBS ${ZLIB_LIBRARIES})
 417   IF(WIN32 AND NOT CYGWIN)
 418     #
 419     # Test if ZLIB_WINAPI macro is needed to use.
 420     #
 421     TRY_MACRO_FOR_LIBRARY(
 422       "${ZLIB_INCLUDE_DIR}" "${ZLIB_LIBRARIES}"
 423       RUNS
 424       "#include <zlib.h>\nint main() {uLong f = zlibCompileFlags(); return (f&(1U<<10))?0:-1; }"
 425       ZLIB_WINAPI)
 426     IF(ZLIB_WINAPI)
 427       ADD_DEFINITIONS(-DZLIB_WINAPI)
 428     ELSE(ZLIB_WINAPI)
 429       # Test if a macro is needed for the library.
 430       TRY_MACRO_FOR_LIBRARY(
 431         "${ZLIB_INCLUDE_DIR}" "${ZLIB_LIBRARIES}"
 432         COMPILES
 433         "#include <zlib.h>\nint main() {return zlibVersion()?1:0; }"
 434         "ZLIB_DLL;WITHOUT_ZLIB_DLL")
 435       IF(ZLIB_DLL)
 436         ADD_DEFINITIONS(-DZLIB_DLL)
 437       ENDIF(ZLIB_DLL)
 438     ENDIF(ZLIB_WINAPI)
 439   ENDIF(WIN32 AND NOT CYGWIN)
 440 ENDIF(ZLIB_FOUND)
 441 MARK_AS_ADVANCED(CLEAR ZLIB_INCLUDE_DIR)
 442 MARK_AS_ADVANCED(CLEAR ZLIB_LIBRARY)
 443 #
 444 # Find BZip2
 445 #
 446 IF(ENABLE_BZip2)
 447   FIND_PACKAGE(BZip2)
 448 ELSE()
 449   SET(BZIP2_FOUND FALSE) # Override cached value
 450 ENDIF()
 451 IF(BZIP2_FOUND)
 452   SET(HAVE_LIBBZ2 1)
 453   SET(HAVE_BZLIB_H 1)
 454   INCLUDE_DIRECTORIES(${BZIP2_INCLUDE_DIR})
 455   LIST(APPEND ADDITIONAL_LIBS ${BZIP2_LIBRARIES})
 456   # Test if a macro is needed for the library.
 457   TRY_MACRO_FOR_LIBRARY(
 458     "${BZIP2_INCLUDE_DIR}" "${BZIP2_LIBRARIES}"
 459     COMPILES
 460     "#include <bzlib.h>\nint main() {return BZ2_bzlibVersion()?1:0; }"
 461     "USE_BZIP2_DLL;USE_BZIP2_STATIC")
 462   IF(USE_BZIP2_DLL)
 463     ADD_DEFINITIONS(-DUSE_BZIP2_DLL)
 464   ELSEIF(USE_BZIP2_STATIC)
 465     ADD_DEFINITIONS(-DUSE_BZIP2_STATIC)
 466   ENDIF(USE_BZIP2_DLL)
 467 ENDIF(BZIP2_FOUND)
 468 MARK_AS_ADVANCED(CLEAR BZIP2_INCLUDE_DIR)
 469 MARK_AS_ADVANCED(CLEAR BZIP2_LIBRARIES)
 470
 471
 472 #
 473 # Find LZMA
 474 #
 475 IF(ENABLE_LZMA)
 476   FIND_PACKAGE(LibLZMA)
 477 ELSE()
 478   SET(LIBLZMA_FOUND FALSE) # Override cached value
 479 ENDIF()
 480
 481 IF(LIBLZMA_FOUND)
 482   SET(HAVE_LIBLZMA 1)
 483   SET(HAVE_LZMA_H 1)
 484   CMAKE_PUSH_CHECK_STATE()
 485   SET(CMAKE_REQUIRED_INCLUDES ${LIBLZMA_INCLUDE_DIR})
 486   SET(CMAKE_REQUIRED_LIBRARIES ${LIBLZMA_LIBRARIES})
 487   INCLUDE_DIRECTORIES(${LIBLZMA_INCLUDE_DIRS})
 488   LIST(APPEND ADDITIONAL_LIBS ${LIBLZMA_LIBRARIES})
 489   # Test if a macro is needed for the library.
 490   TRY_MACRO_FOR_LIBRARY(
 491     "${LIBLZMA_INCLUDE_DIRS}" "${LIBLZMA_LIBRARIES}"
 492     COMPILES
 493     "#include <lzma.h>\nint main() {return (int)lzma_version_number(); }"
 494     "WITHOUT_LZMA_API_STATIC;LZMA_API_STATIC")
 495   IF(NOT WITHOUT_LZMA_API_STATIC AND LZMA_API_STATIC)
 496     ADD_DEFINITIONS(-DLZMA_API_STATIC)
 497   ENDIF(NOT WITHOUT_LZMA_API_STATIC AND LZMA_API_STATIC)
 498   CMAKE_POP_CHECK_STATE()
 499 ELSE(LIBLZMA_FOUND)
 500 # LZMA not found and will not be used.
 501 ENDIF(LIBLZMA_FOUND)
 502 MARK_AS_ADVANCED(CLEAR LIBLZMA_INCLUDE_DIR)
 503 MARK_AS_ADVANCED(CLEAR LIBLZMA_LIBRARY)
 504
 505 #
 506 # Find LZO2
 507 #
 508 IF(ENABLE_LZO)
 509   IF (LZO2_INCLUDE_DIR)
 510     # Already in cache, be silent
 511     SET(LZO2_FIND_QUIETLY TRUE)
 512   ENDIF (LZO2_INCLUDE_DIR)
 513
 514   FIND_PATH(LZO2_INCLUDE_DIR lzo/lzoconf.h)
 515   FIND_LIBRARY(LZO2_LIBRARY NAMES lzo2 liblzo2)
 516   INCLUDE(FindPackageHandleStandardArgs)
 517   FIND_PACKAGE_HANDLE_STANDARD_ARGS(LZO2 DEFAULT_MSG LZO2_LIBRARY LZO2_INCLUDE_DIR)
 518 ELSE(ENABLE_LZO)
 519   SET(LZO2_FOUND FALSE) # Override cached value
 520 ENDIF(ENABLE_LZO)
 521 IF(LZO2_FOUND)
 522   SET(HAVE_LIBLZO2 1)
 523   SET(HAVE_LZO_LZOCONF_H 1)
 524   SET(HAVE_LZO_LZO1X_H 1)
 525   INCLUDE_DIRECTORIES(${LZO2_INCLUDE_DIR})
 526   LIST(APPEND ADDITIONAL_LIBS ${LZO2_LIBRARY})
 527   #
 528   # TODO: test for static library.
 529   #
 530 ENDIF(LZO2_FOUND)
 531 MARK_AS_ADVANCED(CLEAR LZO2_INCLUDE_DIR)
 532 MARK_AS_ADVANCED(CLEAR LZO2_LIBRARY)
 533 #
 534 # Find libb2
 535 #
 536 IF(ENABLE_LIBB2)
 537   IF (LIBB2_INCLUDE_DIR)
 538     # Already in cache, be silent
 539     SET(LIBB2_FIND_QUIETLY TRUE)
 540   ENDIF (LIBB2_INCLUDE_DIR)
 541
 542   FIND_PATH(LIBB2_INCLUDE_DIR blake2.h)
 543   FIND_LIBRARY(LIBB2_LIBRARY NAMES b2 libb2)
 544   INCLUDE(FindPackageHandleStandardArgs)
 545   FIND_PACKAGE_HANDLE_STANDARD_ARGS(LIBB2 DEFAULT_MSG LIBB2_LIBRARY LIBB2_INCLUDE_DIR)
 546 ELSE(ENABLE_LIBB2)
 547   SET(LIBB2_FOUND FALSE) # Override cached value
 548 ENDIF(ENABLE_LIBB2)
 549 IF(LIBB2_FOUND)
 550   SET(HAVE_LIBB2 1)
 551   SET(HAVE_BLAKE2_H 1)
 552   SET(ARCHIVE_BLAKE2 FALSE)
 553   LIST(APPEND ADDITIONAL_LIBS ${LIBB2_LIBRARY})
 554   CMAKE_PUSH_CHECK_STATE()
 555   SET(CMAKE_REQUIRED_LIBRARIES ${LIBB2_LIBRARY})
 556   SET(CMAKE_REQUIRED_INCLUDES ${LIBB2_INCLUDE_DIR})
 557   CHECK_FUNCTION_EXISTS(blake2sp_init HAVE_LIBB2)
 558   CMAKE_POP_CHECK_STATE()
 559 ELSE(LIBB2_FOUND)
 560   SET(ARCHIVE_BLAKE2 TRUE)
 561 ENDIF(LIBB2_FOUND)
 562 #
 563 # Find LZ4
 564 #
 565 IF(ENABLE_LZ4)
 566   IF (LZ4_INCLUDE_DIR)
 567     # Already in cache, be silent
 568     SET(LZ4_FIND_QUIETLY TRUE)
 569   ENDIF (LZ4_INCLUDE_DIR)
 570
 571   FIND_PATH(LZ4_INCLUDE_DIR lz4.h)
 572   FIND_LIBRARY(LZ4_LIBRARY NAMES lz4 liblz4)
 573   INCLUDE(FindPackageHandleStandardArgs)
 574   FIND_PACKAGE_HANDLE_STANDARD_ARGS(LZ4 DEFAULT_MSG LZ4_LIBRARY LZ4_INCLUDE_DIR)
 575 ELSE(ENABLE_LZ4)
 576   SET(LZ4_FOUND FALSE) # Override cached value
 577 ENDIF(ENABLE_LZ4)
 578 IF(LZ4_FOUND)
 579   SET(HAVE_LIBLZ4 1)
 580   SET(HAVE_LZ4_H 1)
 581   CMAKE_PUSH_CHECK_STATE()      # Save the state of the variables
 582   SET(CMAKE_REQUIRED_INCLUDES ${LZ4_INCLUDE_DIR})
 583   CHECK_INCLUDE_FILES("lz4hc.h" HAVE_LZ4HC_H)
 584   CMAKE_POP_CHECK_STATE()       # Restore the state of the variables
 585   INCLUDE_DIRECTORIES(${LZ4_INCLUDE_DIR})
 586   LIST(APPEND ADDITIONAL_LIBS ${LZ4_LIBRARY})
 587   #
 588   # TODO: test for static library.
 589   #
 590 ENDIF(LZ4_FOUND)
 591 MARK_AS_ADVANCED(CLEAR LZ4_INCLUDE_DIR)
 592 MARK_AS_ADVANCED(CLEAR LZ4_LIBRARY)
 593 #
 594 # Find Zstd
 595 #
 596 IF(ENABLE_ZSTD)
 597   IF (ZSTD_INCLUDE_DIR)
 598     # Already in cache, be silent
 599     SET(ZSTD_FIND_QUIETLY TRUE)
 600   ENDIF (ZSTD_INCLUDE_DIR)
 601
 602   FIND_PATH(ZSTD_INCLUDE_DIR zstd.h)
 603   FIND_LIBRARY(ZSTD_LIBRARY NAMES zstd libzstd)
 604   INCLUDE(FindPackageHandleStandardArgs)
 605   FIND_PACKAGE_HANDLE_STANDARD_ARGS(ZSTD DEFAULT_MSG ZSTD_LIBRARY ZSTD_INCLUDE_DIR)
 606 ELSE(ENABLE_ZSTD)
 607   SET(ZSTD_FOUND FALSE) # Override cached value
 608 ENDIF(ENABLE_ZSTD)
 609 IF(ZSTD_FOUND)
 610   SET(HAVE_ZSTD_H 1)
 611   INCLUDE_DIRECTORIES(${ZSTD_INCLUDE_DIR})
 612   LIST(APPEND ADDITIONAL_LIBS ${ZSTD_LIBRARY})
 613   CMAKE_PUSH_CHECK_STATE()
 614   SET(CMAKE_REQUIRED_LIBRARIES ${ZSTD_LIBRARY})
 615   SET(CMAKE_REQUIRED_INCLUDES ${ZSTD_INCLUDE_DIR})
 616   CHECK_FUNCTION_EXISTS(ZSTD_compressStream HAVE_LIBZSTD)
 617   #
 618   # TODO: test for static library.
 619   #
 620   CMAKE_POP_CHECK_STATE()
 621 ENDIF(ZSTD_FOUND)
 622 MARK_AS_ADVANCED(CLEAR ZSTD_INCLUDE_DIR)
 623 MARK_AS_ADVANCED(CLEAR ZSTD_LIBRARY)
 624
 625
 626 #
 627 # Check headers
 628 #
 629 CHECK_HEADER_DIRENT()
 630
 631 SET(INCLUDES "")
 632 MACRO (LA_CHECK_INCLUDE_FILE header var)
 633       CHECK_INCLUDE_FILES("${INCLUDES};${header}" ${var})
 634       IF (${var})
 635          SET(INCLUDES ${INCLUDES} ${header})
 636       ENDIF (${var})
 637 ENDMACRO (LA_CHECK_INCLUDE_FILE)
 638
 639 # Some FreeBSD headers assume sys/types.h was already included.
 640 LA_CHECK_INCLUDE_FILE("sys/types.h" HAVE_SYS_TYPES_H)
 641
 642 # Alphabetize the rest unless there's a compelling reason
 643 LA_CHECK_INCLUDE_FILE("acl/libacl.h" HAVE_ACL_LIBACL_H)
 644 LA_CHECK_INCLUDE_FILE("attr/xattr.h" HAVE_ATTR_XATTR_H)
 645 LA_CHECK_INCLUDE_FILE("ctype.h" HAVE_CTYPE_H)
 646 LA_CHECK_INCLUDE_FILE("copyfile.h" HAVE_COPYFILE_H)
 647 LA_CHECK_INCLUDE_FILE("direct.h" HAVE_DIRECT_H)
 648 LA_CHECK_INCLUDE_FILE("dlfcn.h" HAVE_DLFCN_H)
 649 LA_CHECK_INCLUDE_FILE("errno.h" HAVE_ERRNO_H)
 650 LA_CHECK_INCLUDE_FILE("ext2fs/ext2_fs.h" HAVE_EXT2FS_EXT2_FS_H)
 651
 652 CHECK_C_SOURCE_COMPILES("#include <sys/ioctl.h>
 653 #include <ext2fs/ext2_fs.h>
 654 int main(void) { return EXT2_IOC_GETFLAGS; }" HAVE_WORKING_EXT2_IOC_GETFLAGS)
 655
 656 LA_CHECK_INCLUDE_FILE("fcntl.h" HAVE_FCNTL_H)
 657 LA_CHECK_INCLUDE_FILE("grp.h" HAVE_GRP_H)
 658 LA_CHECK_INCLUDE_FILE("inttypes.h" HAVE_INTTYPES_H)
 659 LA_CHECK_INCLUDE_FILE("io.h" HAVE_IO_H)
 660 LA_CHECK_INCLUDE_FILE("langinfo.h" HAVE_LANGINFO_H)
 661 LA_CHECK_INCLUDE_FILE("limits.h" HAVE_LIMITS_H)
 662 LA_CHECK_INCLUDE_FILE("linux/types.h" HAVE_LINUX_TYPES_H)
 663 LA_CHECK_INCLUDE_FILE("linux/fiemap.h" HAVE_LINUX_FIEMAP_H)
 664 LA_CHECK_INCLUDE_FILE("linux/fs.h" HAVE_LINUX_FS_H)
 665
 666 CHECK_C_SOURCE_COMPILES("#include <sys/ioctl.h>
 667 #include <linux/fs.h>
 668 int main(void) { return FS_IOC_GETFLAGS; }" HAVE_WORKING_FS_IOC_GETFLAGS)
 669
 670 LA_CHECK_INCLUDE_FILE("linux/magic.h" HAVE_LINUX_MAGIC_H)
 671 LA_CHECK_INCLUDE_FILE("locale.h" HAVE_LOCALE_H)
 672 LA_CHECK_INCLUDE_FILE("membership.h" HAVE_MEMBERSHIP_H)
 673 LA_CHECK_INCLUDE_FILE("memory.h" HAVE_MEMORY_H)
 674 LA_CHECK_INCLUDE_FILE("paths.h" HAVE_PATHS_H)
 675 LA_CHECK_INCLUDE_FILE("poll.h" HAVE_POLL_H)
 676 LA_CHECK_INCLUDE_FILE("process.h" HAVE_PROCESS_H)
 677 LA_CHECK_INCLUDE_FILE("pthread.h" HAVE_PTHREAD_H)
 678 LA_CHECK_INCLUDE_FILE("pwd.h" HAVE_PWD_H)
 679 LA_CHECK_INCLUDE_FILE("readpassphrase.h" HAVE_READPASSPHRASE_H)
 680 LA_CHECK_INCLUDE_FILE("regex.h" HAVE_REGEX_H)
 681 LA_CHECK_INCLUDE_FILE("signal.h" HAVE_SIGNAL_H)
 682 LA_CHECK_INCLUDE_FILE("spawn.h" HAVE_SPAWN_H)
 683 LA_CHECK_INCLUDE_FILE("stdarg.h" HAVE_STDARG_H)
 684 LA_CHECK_INCLUDE_FILE("stdint.h" HAVE_STDINT_H)
 685 LA_CHECK_INCLUDE_FILE("stdlib.h" HAVE_STDLIB_H)
 686 LA_CHECK_INCLUDE_FILE("string.h" HAVE_STRING_H)
 687 LA_CHECK_INCLUDE_FILE("strings.h" HAVE_STRINGS_H)
 688 LA_CHECK_INCLUDE_FILE("sys/acl.h" HAVE_SYS_ACL_H)
 689 LA_CHECK_INCLUDE_FILE("sys/cdefs.h" HAVE_SYS_CDEFS_H)
 690 LA_CHECK_INCLUDE_FILE("sys/extattr.h" HAVE_SYS_EXTATTR_H)
 691 LA_CHECK_INCLUDE_FILE("sys/ioctl.h" HAVE_SYS_IOCTL_H)
 692 LA_CHECK_INCLUDE_FILE("sys/mkdev.h" HAVE_SYS_MKDEV_H)
 693 LA_CHECK_INCLUDE_FILE("sys/mount.h" HAVE_SYS_MOUNT_H)
 694 LA_CHECK_INCLUDE_FILE("sys/param.h" HAVE_SYS_PARAM_H)
 695 LA_CHECK_INCLUDE_FILE("sys/poll.h" HAVE_SYS_POLL_H)
 696 LA_CHECK_INCLUDE_FILE("sys/richacl.h" HAVE_SYS_RICHACL_H)
 697 LA_CHECK_INCLUDE_FILE("sys/select.h" HAVE_SYS_SELECT_H)
 698 LA_CHECK_INCLUDE_FILE("sys/stat.h" HAVE_SYS_STAT_H)
 699 LA_CHECK_INCLUDE_FILE("sys/statfs.h" HAVE_SYS_STATFS_H)
 700 LA_CHECK_INCLUDE_FILE("sys/statvfs.h" HAVE_SYS_STATVFS_H)
 701 LA_CHECK_INCLUDE_FILE("sys/sysmacros.h" HAVE_SYS_SYSMACROS_H)
 702 LA_CHECK_INCLUDE_FILE("sys/time.h" HAVE_SYS_TIME_H)
 703 LA_CHECK_INCLUDE_FILE("sys/utime.h" HAVE_SYS_UTIME_H)
 704 LA_CHECK_INCLUDE_FILE("sys/utsname.h" HAVE_SYS_UTSNAME_H)
 705 LA_CHECK_INCLUDE_FILE("sys/vfs.h" HAVE_SYS_VFS_H)
 706 LA_CHECK_INCLUDE_FILE("sys/wait.h" HAVE_SYS_WAIT_H)
 707 LA_CHECK_INCLUDE_FILE("sys/xattr.h" HAVE_SYS_XATTR_H)
 708 LA_CHECK_INCLUDE_FILE("time.h" HAVE_TIME_H)
 709 LA_CHECK_INCLUDE_FILE("unistd.h" HAVE_UNISTD_H)
 710 LA_CHECK_INCLUDE_FILE("utime.h" HAVE_UTIME_H)
 711 LA_CHECK_INCLUDE_FILE("wchar.h" HAVE_WCHAR_H)
 712 LA_CHECK_INCLUDE_FILE("wctype.h" HAVE_WCTYPE_H)
 713 LA_CHECK_INCLUDE_FILE("windows.h" HAVE_WINDOWS_H)
 714 IF(ENABLE_CNG)
 715   LA_CHECK_INCLUDE_FILE("Bcrypt.h" HAVE_BCRYPT_H)
 716   IF(HAVE_BCRYPT_H)
 717     LIST(APPEND ADDITIONAL_LIBS "Bcrypt")
 718   ENDIF(HAVE_BCRYPT_H)
 719 ELSE(ENABLE_CNG)
 720   UNSET(HAVE_BCRYPT_H CACHE)
 721 ENDIF(ENABLE_CNG)
 722 # Following files need windows.h, so we should test it after windows.h test.
 723 LA_CHECK_INCLUDE_FILE("wincrypt.h" HAVE_WINCRYPT_H)
 724 LA_CHECK_INCLUDE_FILE("winioctl.h" HAVE_WINIOCTL_H)
 725
 726 #
 727 # Check whether use of __EXTENSIONS__ is safe.
 728 # We need some macro such as _GNU_SOURCE to use extension functions.
 729 #
 730 SET(_INCLUDE_FILES)
 731 FOREACH (it ${_HEADER})
 732    SET(_INCLUDE_FILES "${_INCLUDE_FILES}#include <${it}>\n")
 733 ENDFOREACH (it)
 734
 735 CHECK_C_SOURCE_COMPILES(
 736   "#define __EXTENSIONS__ 1
 737    ${_INCLUDE_FILES}
 738    int main() { return 0;}"
 739  SAFE_TO_DEFINE_EXTENSIONS)
 740
 741 #
 742 # Find Nettle
 743 #
 744 IF(ENABLE_NETTLE)
 745   FIND_PACKAGE(Nettle)
 746   IF(NETTLE_FOUND)
 747     SET(HAVE_LIBNETTLE 1)
 748     LIST(APPEND ADDITIONAL_LIBS ${NETTLE_LIBRARIES})
 749     INCLUDE_DIRECTORIES(${NETTLE_INCLUDE_DIR})
 750
 751     LIST(APPEND CMAKE_REQUIRED_INCLUDES ${NETTLE_INCLUDE_DIR})
 752     LA_CHECK_INCLUDE_FILE("nettle/aes.h" HAVE_NETTLE_AES_H)
 753     LA_CHECK_INCLUDE_FILE("nettle/hmac.h" HAVE_NETTLE_HMAC_H)
 754     LA_CHECK_INCLUDE_FILE("nettle/md5.h" HAVE_NETTLE_MD5_H)
 755     LA_CHECK_INCLUDE_FILE("nettle/pbkdf2.h" HAVE_NETTLE_PBKDF2_H)
 756     LA_CHECK_INCLUDE_FILE("nettle/ripemd160.h" HAVE_NETTLE_RIPEMD160_H)
 757     LA_CHECK_INCLUDE_FILE("nettle/sha.h" HAVE_NETTLE_SHA_H)
 758
 759   ENDIF(NETTLE_FOUND)
 760   MARK_AS_ADVANCED(CLEAR NETTLE_INCLUDE_DIR)
 761   MARK_AS_ADVANCED(CLEAR NETTLE_LIBRARIES)
 762 ENDIF(ENABLE_NETTLE)
 763
 764 #
 765 # Find OpenSSL
 766 # (Except on Mac, where OpenSSL is deprecated.)
 767 #
 768 IF(ENABLE_OPENSSL AND NOT CMAKE_SYSTEM_NAME MATCHES "Darwin")
 769   FIND_PACKAGE(OpenSSL)
 770   IF(OPENSSL_FOUND)
 771     SET(HAVE_LIBCRYPTO 1)
 772     INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
 773     LIST(APPEND ADDITIONAL_LIBS ${OPENSSL_CRYPTO_LIBRARY})
 774   ENDIF(OPENSSL_FOUND)
 775 ELSE()
 776   SET(OPENSSL_FOUND FALSE) # Override cached value
 777 ENDIF()
 778
 779 # FreeBSD libmd
 780 IF(NOT OPENSSL_FOUND)
 781   CHECK_LIBRARY_EXISTS(md "MD5Init" "" LIBMD_FOUND)
 782   IF(LIBMD_FOUND)
 783     CMAKE_PUSH_CHECK_STATE()    # Save the state of the variables
 784     SET(CMAKE_REQUIRED_LIBRARIES "md")
 785     FIND_LIBRARY(LIBMD_LIBRARY NAMES md)
 786     LIST(APPEND ADDITIONAL_LIBS ${LIBMD_LIBRARY})
 787     CMAKE_POP_CHECK_STATE()     # Restore the state of the variables
 788   ENDIF(LIBMD_FOUND)
 789 ENDIF(NOT OPENSSL_FOUND)
 790
 791 #
 792 # How to prove that CRYPTO functions, which have several names on various
 793 # platforms, just see if archive_digest.c can compile and link against
 794 # required libraries.
 795 #
 796 MACRO(CHECK_CRYPTO ALGORITHMS IMPLEMENTATION)
 797     FOREACH(ALGORITHM ${ALGORITHMS})
 798       IF(NOT ARCHIVE_CRYPTO_${ALGORITHM})
 799       STRING(TOLOWER "${ALGORITHM}" lower_algorithm)
 800       STRING(TOUPPER "${ALGORITHM}" algorithm)
 801       IF ("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND NOT OPENSSL_FOUND)
 802         SET(ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION} FALSE)
 803       ELSEIF("${IMPLEMENTATION}" MATCHES "^NETTLE$" AND NOT NETTLE_FOUND)
 804         SET(ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION} FALSE)
 805       ENDIF("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND NOT OPENSSL_FOUND)
 806
 807       IF(NOT DEFINED ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 808         # Probe the local implementation for whether this
 809         # crypto implementation is available on this platform.
 810         SET(TRY_CRYPTO_REQUIRED_INCLUDES
 811           "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_BINARY_DIR};${CMAKE_CURRENT_SOURCE_DIR}/libarchive;${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp")
 812         SET(TRY_CRYPTO_REQUIRED_LIBS)
 813         IF ("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND OPENSSL_FOUND)
 814             SET(TRY_CRYPTO_REQUIRED_INCLUDES
 815               "${TRY_CRYPTO_REQUIRED_INCLUDES};${OPENSSL_INCLUDE_DIR}")
 816             SET(TRY_CRYPTO_REQUIRED_LIBS
 817                 "-DLINK_LIBRARIES:STRING=${OPENSSL_LIBRARIES}")
 818         ELSEIF("${IMPLEMENTATION}" MATCHES "^NETTLE$" AND NETTLE_FOUND)
 819             SET(TRY_CRYPTO_REQUIRED_INCLUDES
 820               "${TRY_CRYPTO_REQUIRED_INCLUDES};${NETTLE_INCLUDE_DIR}")
 821             SET(TRY_CRYPTO_REQUIRED_LIBS
 822                 "-DLINK_LIBRARIES:STRING=${NETTLE_LIBRARY}")
 823         ELSEIF("${IMPLEMENTATION}" MATCHES "^LIBMD$" AND LIBMD_FOUND)
 824             SET(TRY_CRYPTO_REQUIRED_LIBS
 825                 "-DLINK_LIBRARIES:STRING=${LIBMD_LIBRARY}")
 826         ENDIF("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND OPENSSL_FOUND)
 827
 828     CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/build/cmake/config.h.in
 829       ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/confdefs.h)
 830         FILE(READ "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/confdefs.h"
 831              CONFDEFS_H)
 832         FILE(READ "${CMAKE_CURRENT_SOURCE_DIR}/libarchive/archive_digest.c"
 833              ARCHIVE_CRYPTO_C)
 834
 835         SET(SOURCE "${CONFDEFS_H}
 836
 837 #define ARCHIVE_${algorithm}_COMPILE_TEST
 838 #define ARCHIVE_CRYPTO_${algorithm}_${IMPLEMENTATION}
 839 #define PLATFORM_CONFIG_H \"check_crypto_md.h\"
 840
 841 ${ARCHIVE_CRYPTO_C}
 842
 843 int
 844 main(int argc, char **argv)
 845 {
 846   archive_${lower_algorithm}_ctx ctx;
 847   archive_${lower_algorithm}_init(&ctx);
 848   archive_${lower_algorithm}_update(&ctx, *argv, argc);
 849   archive_${lower_algorithm}_final(&ctx, NULL);
 850   return 0;
 851 }
 852 ")
 853
 854   FILE(WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/check_crypto_md.h" "")
 855         FILE(WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/check_crypto_md.c" "${SOURCE}")
 856         MESSAGE(STATUS "Checking support for ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION}")
 857
 858         TRY_COMPILE(ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION}
 859           ${CMAKE_BINARY_DIR}
 860           ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/check_crypto_md.c
 861           CMAKE_FLAGS
 862            "${TRY_CRYPTO_REQUIRED_LIBS}"
 863            "${TRY_CRYPTO_REQUIRED_INCLUDES}"
 864           OUTPUT_VARIABLE OUTPUT)
 865
 866         # Inform user whether or not we found it; if not, log why we didn't.
 867         IF (ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 868           MESSAGE(STATUS "Checking support for ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION} -- found")
 869                   SET(ARCHIVE_CRYPTO_${ALGORITHM} 1)
 870         ELSE (ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 871           MESSAGE(STATUS "Checking support for ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION} -- not found")
 872           FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
 873             "Checking support for ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION} failed with the following output:\n"
 874             "${OUTPUT}\n"
 875             "Source file was:\n${SOURCE}\n")
 876         ENDIF (ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 877       ENDIF(NOT DEFINED ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 878
 879       # Add appropriate libs/includes depending on whether the implementation
 880       # was found on this platform.
 881       IF (ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 882         IF ("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND OPENSSL_FOUND)
 883           INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
 884           LIST(APPEND ADDITIONAL_LIBS ${OPENSSL_LIBRARIES})
 885            LIST(REMOVE_DUPLICATES ADDITIONAL_LIBS)
 886         ENDIF ("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND OPENSSL_FOUND)
 887       ENDIF (ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 888       ENDIF(NOT ARCHIVE_CRYPTO_${ALGORITHM})
 889     ENDFOREACH(ALGORITHM ${ALGORITHMS})
 890 ENDMACRO(CHECK_CRYPTO ALGORITHMS IMPLEMENTATION)
 891
 892 #
 893 # CRYPTO functions on Windows is defined at archive_windows.c, thus we do not
 894 # need the test what the functions can be mapped to archive_{crypto name}_init,
 895 # archive_{crypto name}_update and archive_{crypto name}_final.
 896 # The functions on Windows use CALG_{crypto name} macro to create a crypt object
 897 # and then we need to know what CALG_{crypto name} macros is available to show
 898 # ARCHIVE_CRYPTO_{crypto name}_WIN macros because Windows 2000 and earlier version
 899 # of Windows XP do not support SHA256, SHA384 and SHA512.
 900 #
 901 MACRO(CHECK_CRYPTO_WIN CRYPTO_LIST)
 902   IF(WIN32 AND NOT CYGWIN)
 903     FOREACH(CRYPTO ${CRYPTO_LIST})
 904       IF(NOT ARCHIVE_CRYPTO_${CRYPTO})
 905       IF(NOT DEFINED ARCHIVE_CRYPTO_${CRYPTO}_WIN)
 906         STRING(TOUPPER "${CRYPTO}" crypto)
 907         SET(ALGID "")
 908         IF ("${CRYPTO}" MATCHES "^MD5$")
 909             SET(ALGID "CALG_MD5")
 910         ENDIF ("${CRYPTO}" MATCHES "^MD5$")
 911         IF ("${CRYPTO}" MATCHES "^SHA1$")
 912             SET(ALGID "CALG_SHA1")
 913         ENDIF ("${CRYPTO}" MATCHES "^SHA1$")
 914         IF ("${CRYPTO}" MATCHES "^SHA256$")
 915             SET(ALGID "CALG_SHA_256")
 916         ENDIF ("${CRYPTO}" MATCHES "^SHA256$")
 917         IF ("${CRYPTO}" MATCHES "^SHA384$")
 918             SET(ALGID "CALG_SHA_384")
 919         ENDIF ("${CRYPTO}" MATCHES "^SHA384$")
 920         IF ("${CRYPTO}" MATCHES "^SHA512$")
 921             SET(ALGID "CALG_SHA_512")
 922         ENDIF ("${CRYPTO}" MATCHES "^SHA512$")
 923
 924     CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/build/cmake/config.h.in
 925       ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/confdefs.h)
 926         FILE(READ "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/confdefs.h"
 927              CONFDEFS_H)
 928
 929         SET(SOURCE "${CONFDEFS_H}
 930
 931 #define ${crypto}_COMPILE_TEST
 932 #include <windows.h>
 933 #include <wincrypt.h>
 934
 935 int
 936 main(int argc, char **argv)
 937 {
 938         return ${ALGID};
 939 }
 940 ")
 941         SET(SOURCE_FILE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/check_crypto_win.c")
 942
 943         FILE(WRITE "${SOURCE_FILE}" "${SOURCE}")
 944         MESSAGE(STATUS "Checking support for ARCHIVE_CRYPTO_${CRYPTO}_WIN")
 945
 946         TRY_COMPILE(ARCHIVE_CRYPTO_${CRYPTO}_WIN
 947           ${CMAKE_BINARY_DIR}
 948           ${SOURCE_FILE}
 949           CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_BINARY_DIR};${CMAKE_CURRENT_SOURCE_DIR}/libarchive"
 950           OUTPUT_VARIABLE OUTPUT)
 951
 952         IF (ARCHIVE_CRYPTO_${CRYPTO}_WIN)
 953             MESSAGE(STATUS
 954                 "Checking support for ARCHIVE_CRYPTO_${CRYPTO}_WIN -- found")
 955                 SET(ARCHIVE_CRYPTO_${CRYPTO} 1)
 956         ELSE (ARCHIVE_CRYPTO_${CRYPTO}_WIN)
 957             MESSAGE(STATUS
 958                  "Checking support for ARCHIVE_CRYPTO_${CRYPTO}_WIN -- not found")
 959             FILE(APPEND
 960                 ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
 961                 "Checking support for ARCHIVE_CRYPTO_${CRYPTO}_WIN failed with the following output:\n"
 962                 "${OUTPUT}\n"
 963                 "Source file was:\n${SOURCE}\n")
 964         ENDIF (ARCHIVE_CRYPTO_${CRYPTO}_WIN)
 965
 966       ENDIF(NOT DEFINED ARCHIVE_CRYPTO_${CRYPTO}_WIN)
 967       ENDIF(NOT ARCHIVE_CRYPTO_${CRYPTO})
 968     ENDFOREACH(CRYPTO)
 969   ENDIF(WIN32 AND NOT CYGWIN)
 970 ENDMACRO(CHECK_CRYPTO_WIN CRYPTO_LIST)
 971
 972 #
 973 # Find iconv
 974 # POSIX defines the second arg as const char **
 975 # and requires it to be in libc.  But we can accept
 976 # a non-const argument here and can support iconv()
 977 # being in libiconv.
 978 #
 979 MACRO(CHECK_ICONV LIB TRY_ICONV_CONST)
 980   IF(NOT HAVE_ICONV)
 981     CMAKE_PUSH_CHECK_STATE()    # Save the state of the variables
 982     IF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
 983         CMAKE_C_COMPILER_ID MATCHES "^Clang$")
 984       #
 985       # During checking iconv proto type, we should use -Werror to avoid the
 986       # success of iconv detection with a warnig which success is a miss
 987       # detection. So this needs for all build mode(even it's a release mode).
 988       #
 989       SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror")
 990     ENDIF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
 991            CMAKE_C_COMPILER_ID MATCHES "^Clang$")
 992     IF (CMAKE_C_COMPILER_ID MATCHES "^XL$")
 993       SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -qhalt=w -qflag=w:w")
 994     ENDIF (CMAKE_C_COMPILER_ID MATCHES "^XL$")
 995     IF (MSVC)
 996       # NOTE: /WX option is the same as gcc's -Werror option.
 997       SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} /WX")
 998     ENDIF (MSVC)
 999     #
1000     CHECK_C_SOURCE_COMPILES(
1001       "#include <stdlib.h>
1002        #include <iconv.h>
1003        int main() {
1004           ${TRY_ICONV_CONST} char *ccp;
1005           iconv_t cd = iconv_open(\"\", \"\");
1006           iconv(cd, &ccp, (size_t *)0, (char **)0, (size_t *)0);
1007           iconv_close(cd);
1008           return 0;
1009        }"
1010      HAVE_ICONV_${LIB}_${TRY_ICONV_CONST})
1011     IF(HAVE_ICONV_${LIB}_${TRY_ICONV_CONST})
1012       SET(HAVE_ICONV true)
1013       SET(ICONV_CONST ${TRY_ICONV_CONST})
1014     ENDIF(HAVE_ICONV_${LIB}_${TRY_ICONV_CONST})
1015     CMAKE_POP_CHECK_STATE()     # Restore the state of the variables
1016   ENDIF(NOT HAVE_ICONV)
1017 ENDMACRO(CHECK_ICONV TRY_ICONV_CONST)
1018
1019 IF(ENABLE_ICONV)
1020   CMAKE_PUSH_CHECK_STATE()      # Save the state of the variables
1021   FIND_PATH(ICONV_INCLUDE_DIR iconv.h)
1022   IF(ICONV_INCLUDE_DIR)
1023     #SET(INCLUDES ${INCLUDES} "iconv.h")
1024     SET(HAVE_ICONV_H 1)
1025     INCLUDE_DIRECTORIES(${ICONV_INCLUDE_DIR})
1026     SET(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
1027     CHECK_ICONV("libc" "const")
1028     CHECK_ICONV("libc" "")
1029
1030     # If iconv isn't in libc and we have a libiconv, try that.
1031     FIND_LIBRARY(LIBICONV_PATH NAMES iconv libiconv)
1032     IF(NOT HAVE_ICONV AND LIBICONV_PATH)
1033       LIST(APPEND CMAKE_REQUIRED_LIBRARIES ${LIBICONV_PATH})
1034       # Test if a macro is needed for the library.
1035       TRY_MACRO_FOR_LIBRARY(
1036         "${ICONV_INCLUDE_DIR}" "${LIBICONV_PATH}"
1037         COMPILES
1038         "#include <iconv.h>\nint main() {return iconv_close((iconv_t)0);}"
1039         "WITHOUT_LIBICONV_STATIC;LIBICONV_STATIC")
1040       IF(NOT WITHOUT_LIBICONV_STATIC AND LIBICONV_STATIC)
1041         ADD_DEFINITIONS(-DLIBICONV_STATIC)
1042       ENDIF(NOT WITHOUT_LIBICONV_STATIC AND LIBICONV_STATIC)
1043       #
1044       # Set up CMAKE_REQUIRED_* for CHECK_ICONV
1045       #
1046       SET(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
1047       SET(CMAKE_REQUIRED_LIBRARIES ${LIBICONV_PATH})
1048       IF(LIBICONV_STATIC)
1049         # LIBICONV_STATIC is necessary for the success of CHECK_ICONV
1050         # on Windows.
1051         SET(CMAKE_REQUIRED_DEFINITIONS "-DLIBICONV_STATIC")
1052       ELSE(LIBICONV_STATIC)
1053         SET(CMAKE_REQUIRED_DEFINITIONS)
1054       ENDIF(LIBICONV_STATIC)
1055       CHECK_ICONV("libiconv" "const")
1056       CHECK_ICONV("libiconv" "")
1057       IF (HAVE_ICONV)
1058         LIST(APPEND ADDITIONAL_LIBS ${LIBICONV_PATH})
1059       ENDIF(HAVE_ICONV)
1060     ENDIF(NOT HAVE_ICONV AND LIBICONV_PATH)
1061   ENDIF(ICONV_INCLUDE_DIR)
1062   #
1063   # Find locale_charset() for libiconv.
1064   #
1065   IF(LIBICONV_PATH)
1066     SET(CMAKE_REQUIRED_DEFINITIONS)
1067     SET(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
1068     SET(CMAKE_REQUIRED_LIBRARIES)
1069     CHECK_INCLUDE_FILES("localcharset.h" HAVE_LOCALCHARSET_H)
1070     FIND_LIBRARY(LIBCHARSET_PATH NAMES charset libcharset)
1071     IF(LIBCHARSET_PATH)
1072       SET(CMAKE_REQUIRED_LIBRARIES ${LIBCHARSET_PATH})
1073       IF(WIN32 AND NOT CYGWIN)
1074         # Test if a macro is needed for the library.
1075         TRY_MACRO_FOR_LIBRARY(
1076           "${ICONV_INCLUDE_DIR}" "${LIBCHARSET_PATH}"
1077           COMPILES
1078           "#include <localcharset.h>\nint main() {return locale_charset()?1:0;}"
1079           "WITHOUT_LIBCHARSET_STATIC;LIBCHARSET_STATIC")
1080         IF(NOT WITHOUT_LIBCHARSET_STATIC AND LIBCHARSET_STATIC)
1081           ADD_DEFINITIONS(-DLIBCHARSET_STATIC)
1082         ENDIF(NOT WITHOUT_LIBCHARSET_STATIC AND LIBCHARSET_STATIC)
1083         IF(WITHOUT_LIBCHARSET_STATIC OR LIBCHARSET_STATIC)
1084           SET(HAVE_LOCALE_CHARSET ON CACHE INTERNAL
1085               "Have function locale_charset")
1086         ENDIF(WITHOUT_LIBCHARSET_STATIC OR LIBCHARSET_STATIC)
1087       ELSE(WIN32 AND NOT CYGWIN)
1088         CHECK_FUNCTION_EXISTS_GLIBC(locale_charset HAVE_LOCALE_CHARSET)
1089       ENDIF(WIN32 AND NOT CYGWIN)
1090       IF(HAVE_LOCALE_CHARSET)
1091         LIST(APPEND ADDITIONAL_LIBS ${LIBCHARSET_PATH})
1092       ENDIF(HAVE_LOCALE_CHARSET)
1093     ENDIF(LIBCHARSET_PATH)
1094   ENDIF(LIBICONV_PATH)
1095   CMAKE_POP_CHECK_STATE()       # Restore the state of the variables
1096 ELSE(ENABLE_ICONV)
1097   # Make sure ICONV variables are not in CACHE after ENABLE_ICONV disabled
1098   # (once enabled).
1099   UNSET(HAVE_LOCALE_CHARSET CACHE)
1100   UNSET(HAVE_ICONV CACHE)
1101   UNSET(HAVE_ICONV_libc_ CACHE)
1102   UNSET(HAVE_ICONV_libc_const CACHE)
1103   UNSET(HAVE_ICONV_libiconv_ CACHE)
1104   UNSET(HAVE_ICONV_libiconv_const CACHE)
1105   UNSET(ICONV_INCLUDE_DIR CACHE)
1106   UNSET(LIBICONV_PATH CACHE)
1107   UNSET(LIBICONV_DLL CACHE)
1108   UNSET(LIBICONV_STATIC CACHE)
1109   UNSET(LIBCHARSET_DLL CACHE)
1110   UNSET(LIBCHARSET_STATIC CACHE)
1111 ENDIF(ENABLE_ICONV)
1112
1113 #
1114 # Find Libxml2
1115 #
1116 IF(ENABLE_LIBXML2)
1117   FIND_PACKAGE(LibXml2)
1118 ELSE()
1119   SET(LIBXML2_FOUND FALSE)
1120 ENDIF()
1121 IF(LIBXML2_FOUND)
1122   CMAKE_PUSH_CHECK_STATE()      # Save the state of the variables
1123   INCLUDE_DIRECTORIES(${LIBXML2_INCLUDE_DIR})
1124   LIST(APPEND ADDITIONAL_LIBS ${LIBXML2_LIBRARIES})
1125   SET(HAVE_LIBXML2 1)
1126   # libxml2's include files use iconv.h
1127   SET(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR} ${LIBXML2_INCLUDE_DIR})
1128   CHECK_INCLUDE_FILES("libxml/xmlreader.h" HAVE_LIBXML_XMLREADER_H)
1129   CHECK_INCLUDE_FILES("libxml/xmlwriter.h" HAVE_LIBXML_XMLWRITER_H)
1130   # Test if a macro is needed for the library.
1131   TRY_MACRO_FOR_LIBRARY(
1132     "${ICONV_INCLUDE_DIR};${LIBXML2_INCLUDE_DIR}"
1133     "ws2_32.lib;${ZLIB_LIBRARIES};${LIBICONV_PATH};${LIBXML2_LIBRARIES}"
1134     COMPILES
1135     "#include <stddef.h>\n#include <libxml/xmlreader.h>\nint main() {return xmlTextReaderRead((xmlTextReaderPtr)(void *)0);}"
1136     "WITHOUT_LIBXML_STATIC;LIBXML_STATIC")
1137   IF(NOT WITHOUT_LIBXML_STATIC AND LIBXML_STATIC)
1138     ADD_DEFINITIONS(-DLIBXML_STATIC)
1139   ENDIF(NOT WITHOUT_LIBXML_STATIC AND LIBXML_STATIC)
1140   CMAKE_POP_CHECK_STATE()       # Restore the state of the variables
1141 ELSE(LIBXML2_FOUND)
1142   #
1143   # Find Expat
1144   #
1145   IF(ENABLE_EXPAT)
1146     FIND_PACKAGE(EXPAT)
1147   ELSE()
1148     SET(EXPAT_FOUND FALSE)
1149   ENDIF()
1150   IF(EXPAT_FOUND)
1151     CMAKE_PUSH_CHECK_STATE()    # Save the state of the variables
1152     INCLUDE_DIRECTORIES(${EXPAT_INCLUDE_DIR})
1153     LIST(APPEND ADDITIONAL_LIBS ${EXPAT_LIBRARIES})
1154     SET(HAVE_LIBEXPAT 1)
1155     LA_CHECK_INCLUDE_FILE("expat.h" HAVE_EXPAT_H)
1156     CMAKE_POP_CHECK_STATE()     # Restore the state of the variables
1157   ENDIF(EXPAT_FOUND)
1158 ENDIF(LIBXML2_FOUND)
1159 MARK_AS_ADVANCED(CLEAR LIBXML2_INCLUDE_DIR)
1160 MARK_AS_ADVANCED(CLEAR LIBXML2_LIBRARIES)
1161
1162 #
1163 # POSIX Regular Expression support
1164 #
1165 IF(POSIX_REGEX_LIB MATCHES "^(AUTO|LIBC|LIBREGEX)$")
1166   #
1167   # If PCREPOSIX is not found or not requested, try using regex
1168   # from libc or libregex
1169   #
1170   FIND_PATH(REGEX_INCLUDE_DIR regex.h)
1171   IF(REGEX_INCLUDE_DIR)
1172     CHECK_FUNCTION_EXISTS_GLIBC(regcomp HAVE_REGCOMP_LIBC)
1173     #
1174     # If libc does not provide regex, find libregex.
1175     #
1176     IF(NOT HAVE_REGCOMP_LIBC)
1177       CMAKE_PUSH_CHECK_STATE()  # Save the state of the variables
1178       FIND_LIBRARY(REGEX_LIBRARY regex)
1179       IF(REGEX_LIBRARY)
1180         SET(CMAKE_REQUIRED_LIBRARIES ${REGEX_LIBRARY})
1181         CHECK_FUNCTION_EXISTS_GLIBC(regcomp HAVE_REGCOMP_LIBREGEX)
1182         IF(HAVE_REGCOMP_LIBREGEX)
1183           LIST(APPEND ADDITIONAL_LIBS ${REGEX_LIBRARY})
1184           #
1185           # If regex.h is not found, retry looking for regex.h at
1186           # REGEX_INCLUDE_DIR
1187           #
1188           IF(NOT HAVE_REGEX_H)
1189             UNSET(HAVE_REGEX_H CACHE)
1190             INCLUDE_DIRECTORIES(${REGEX_INCLUDE_DIR})
1191             SET(CMAKE_REQUIRED_INCLUDES ${REGEX_INCLUDE_DIR})
1192             LA_CHECK_INCLUDE_FILE("regex.h" HAVE_REGEX_H)
1193           ENDIF(NOT HAVE_REGEX_H)
1194           # Test if a macro is needed for the library.
1195           TRY_MACRO_FOR_LIBRARY(
1196             "${REGEX_INCLUDE_DIR}" "${REGEX_LIBRARY}"
1197             COMPILES
1198             "#include <stddef.h>\n#include <regex.h>\nint main() {regex_t r;return regcomp(&r, \"\", 0);}"
1199             "USE_REGEX_DLL;USE_REGEX_STATIC")
1200           IF(USE_REGEX_DLL)
1201             ADD_DEFINITIONS(-DUSE_REGEX_DLL)
1202           ELSEIF(USE_REGEX_STATIC)
1203             ADD_DEFINITIONS(-DUSE_REGEX_STATIC)
1204           ENDIF(USE_REGEX_DLL)
1205         ENDIF(HAVE_REGCOMP_LIBREGEX)
1206       ENDIF(REGEX_LIBRARY)
1207       CMAKE_POP_CHECK_STATE()   # Restore the state of the variables
1208     ENDIF(NOT HAVE_REGCOMP_LIBC)
1209   ENDIF(REGEX_INCLUDE_DIR)
1210   IF(HAVE_REGCOMP_LIBC OR HAVE_REGCOMP_LIBREGEX)
1211     SET(FOUND_POSIX_REGEX_LIB 1)
1212   ENDIF(HAVE_REGCOMP_LIBC OR HAVE_REGCOMP_LIBREGEX)
1213 ENDIF(POSIX_REGEX_LIB MATCHES "^(AUTO|LIBC|LIBREGEX)$")
1214
1215 IF(NOT FOUND_POSIX_REGEX_LIB AND POSIX_REGEX_LIB MATCHES "^(AUTO|LIBPCREPOSIX)$")
1216   #
1217   # If requested, try finding library for PCREPOSIX
1218   #
1219   IF(ENABLE_LibGCC)
1220     FIND_PACKAGE(LibGCC)
1221   ELSE()
1222     SET(LIBGCC_FOUND FALSE) # Override cached value
1223   ENDIF()
1224   IF(ENABLE_PCREPOSIX)
1225     FIND_PACKAGE(PCREPOSIX)
1226   ELSE()
1227     SET(PCREPOSIX_FOUND FALSE) # Override cached value
1228   ENDIF()
1229   IF(PCREPOSIX_FOUND)
1230     INCLUDE_DIRECTORIES(${PCRE_INCLUDE_DIR})
1231     LIST(APPEND ADDITIONAL_LIBS ${PCREPOSIX_LIBRARIES})
1232     # Test if a macro is needed for the library.
1233     TRY_MACRO_FOR_LIBRARY(
1234       "${PCRE_INCLUDE_DIR}" "${PCREPOSIX_LIBRARIES}"
1235       COMPILES
1236       "#include <pcreposix.h>\nint main() {regex_t r;return regcomp(&r, \"\", 0);}"
1237       "WITHOUT_PCRE_STATIC;PCRE_STATIC")
1238     IF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1239       ADD_DEFINITIONS(-DPCRE_STATIC)
1240         ELSEIF(NOT WITHOUT_PCRE_STATIC AND NOT PCRE_STATIC AND PCRE_FOUND)
1241           # Determine if pcre static libraries are to be used.
1242       LIST(APPEND ADDITIONAL_LIBS ${PCRE_LIBRARIES})
1243       SET(TMP_LIBRARIES ${PCREPOSIX_LIBRARIES} ${PCRE_LIBRARIES})
1244       MESSAGE(STATUS "trying again with -lpcre included")
1245       TRY_MACRO_FOR_LIBRARY(
1246         "${PCRE_INCLUDE_DIR}" "${TMP_LIBRARIES}"
1247         COMPILES
1248         "#include <pcreposix.h>\nint main() {regex_t r;return regcomp(&r, \"\", 0);}"
1249         "WITHOUT_PCRE_STATIC;PCRE_STATIC")
1250       IF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1251         ADD_DEFINITIONS(-DPCRE_STATIC)
1252       ELSEIF(NOT WITHOUT_PCRE_STATIC AND NOT PCRE_STATIC AND MSVC AND LIBGCC_FOUND)
1253         # When doing a Visual Studio build using pcre static libraries
1254         # built using the mingw toolchain, -lgcc is needed to resolve
1255         # ___chkstk_ms.
1256         MESSAGE(STATUS "Visual Studio build detected, trying again with -lgcc included")
1257         LIST(APPEND ADDITIONAL_LIBS ${LIBGCC_LIBRARIES})
1258         SET(TMP_LIBRARIES ${PCREPOSIX_LIBRARIES} ${PCRE_LIBRARIES} ${LIBGCC_LIBRARIES})
1259           TRY_MACRO_FOR_LIBRARY(
1260             "${PCRE_INCLUDE_DIR}" "${TMP_LIBRARIES}"
1261             COMPILES
1262             "#include <pcreposix.h>\nint main() {regex_t r;return regcomp(&r, \"\", 0);}"
1263             "WITHOUT_PCRE_STATIC;PCRE_STATIC")
1264           IF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1265             ADD_DEFINITIONS(-DPCRE_STATIC)
1266           ENDIF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1267       ENDIF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1268     ENDIF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1269   ENDIF(PCREPOSIX_FOUND)
1270   MARK_AS_ADVANCED(CLEAR PCRE_INCLUDE_DIR)
1271   MARK_AS_ADVANCED(CLEAR PCREPOSIX_LIBRARIES)
1272   MARK_AS_ADVANCED(CLEAR PCRE_LIBRARIES)
1273   MARK_AS_ADVANCED(CLEAR LIBGCC_LIBRARIES)
1274 ENDIF(NOT FOUND_POSIX_REGEX_LIB AND POSIX_REGEX_LIB MATCHES "^(AUTO|LIBPCREPOSIX)$")
1275
1276 #
1277 # Check functions
1278 #
1279 CMAKE_PUSH_CHECK_STATE()        # Save the state of the variables
1280 IF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
1281     CMAKE_C_COMPILER_ID MATCHES "^Clang$")
1282   #
1283   # During checking functions, we should use -fno-builtin to avoid the
1284   # failure of function detection which failure is an error "conflicting
1285   # types for built-in function" caused by using -Werror option.
1286   #
1287   SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -fno-builtin")
1288 ENDIF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
1289        CMAKE_C_COMPILER_ID MATCHES "^Clang$")
1290 CHECK_SYMBOL_EXISTS(_CrtSetReportMode "crtdbg.h" HAVE__CrtSetReportMode)
1291 CHECK_FUNCTION_EXISTS_GLIBC(arc4random_buf HAVE_ARC4RANDOM_BUF)
1292 CHECK_FUNCTION_EXISTS_GLIBC(chflags HAVE_CHFLAGS)
1293 CHECK_FUNCTION_EXISTS_GLIBC(chown HAVE_CHOWN)
1294 CHECK_FUNCTION_EXISTS_GLIBC(chroot HAVE_CHROOT)
1295 CHECK_FUNCTION_EXISTS_GLIBC(ctime_r HAVE_CTIME_R)
1296 CHECK_FUNCTION_EXISTS_GLIBC(fchdir HAVE_FCHDIR)
1297 CHECK_FUNCTION_EXISTS_GLIBC(fchflags HAVE_FCHFLAGS)
1298 CHECK_FUNCTION_EXISTS_GLIBC(fchmod HAVE_FCHMOD)
1299 CHECK_FUNCTION_EXISTS_GLIBC(fchown HAVE_FCHOWN)
1300 CHECK_FUNCTION_EXISTS_GLIBC(fcntl HAVE_FCNTL)
1301 CHECK_FUNCTION_EXISTS_GLIBC(fdopendir HAVE_FDOPENDIR)
1302 CHECK_FUNCTION_EXISTS_GLIBC(fork HAVE_FORK)
1303 CHECK_FUNCTION_EXISTS_GLIBC(fstat HAVE_FSTAT)
1304 CHECK_FUNCTION_EXISTS_GLIBC(fstatat HAVE_FSTATAT)
1305 CHECK_FUNCTION_EXISTS_GLIBC(fstatfs HAVE_FSTATFS)
1306 CHECK_FUNCTION_EXISTS_GLIBC(fstatvfs HAVE_FSTATVFS)
1307 CHECK_FUNCTION_EXISTS_GLIBC(ftruncate HAVE_FTRUNCATE)
1308 CHECK_FUNCTION_EXISTS_GLIBC(futimens HAVE_FUTIMENS)
1309 CHECK_FUNCTION_EXISTS_GLIBC(futimes HAVE_FUTIMES)
1310 CHECK_FUNCTION_EXISTS_GLIBC(futimesat HAVE_FUTIMESAT)
1311 CHECK_FUNCTION_EXISTS_GLIBC(geteuid HAVE_GETEUID)
1312 CHECK_FUNCTION_EXISTS_GLIBC(getgrgid_r HAVE_GETGRGID_R)
1313 CHECK_FUNCTION_EXISTS_GLIBC(getgrnam_r HAVE_GETGRNAM_R)
1314 CHECK_FUNCTION_EXISTS_GLIBC(getpwnam_r HAVE_GETPWNAM_R)
1315 CHECK_FUNCTION_EXISTS_GLIBC(getpwuid_r HAVE_GETPWUID_R)
1316 CHECK_FUNCTION_EXISTS_GLIBC(getpid HAVE_GETPID)
1317 CHECK_FUNCTION_EXISTS_GLIBC(getvfsbyname HAVE_GETVFSBYNAME)
1318 CHECK_FUNCTION_EXISTS_GLIBC(gmtime_r HAVE_GMTIME_R)
1319 CHECK_FUNCTION_EXISTS_GLIBC(lchflags HAVE_LCHFLAGS)
1320 CHECK_FUNCTION_EXISTS_GLIBC(lchmod HAVE_LCHMOD)
1321 CHECK_FUNCTION_EXISTS_GLIBC(lchown HAVE_LCHOWN)
1322 CHECK_FUNCTION_EXISTS_GLIBC(link HAVE_LINK)
1323 CHECK_FUNCTION_EXISTS_GLIBC(localtime_r HAVE_LOCALTIME_R)
1324 CHECK_FUNCTION_EXISTS_GLIBC(lstat HAVE_LSTAT)
1325 CHECK_FUNCTION_EXISTS_GLIBC(lutimes HAVE_LUTIMES)
1326 CHECK_FUNCTION_EXISTS_GLIBC(mbrtowc HAVE_MBRTOWC)
1327 CHECK_FUNCTION_EXISTS_GLIBC(memmove HAVE_MEMMOVE)
1328 CHECK_FUNCTION_EXISTS_GLIBC(mkdir HAVE_MKDIR)
1329 CHECK_FUNCTION_EXISTS_GLIBC(mkfifo HAVE_MKFIFO)
1330 CHECK_FUNCTION_EXISTS_GLIBC(mknod HAVE_MKNOD)
1331 CHECK_FUNCTION_EXISTS_GLIBC(mkstemp HAVE_MKSTEMP)
1332 CHECK_FUNCTION_EXISTS_GLIBC(nl_langinfo HAVE_NL_LANGINFO)
1333 CHECK_FUNCTION_EXISTS_GLIBC(openat HAVE_OPENAT)
1334 CHECK_FUNCTION_EXISTS_GLIBC(pipe HAVE_PIPE)
1335 CHECK_FUNCTION_EXISTS_GLIBC(poll HAVE_POLL)
1336 CHECK_FUNCTION_EXISTS_GLIBC(posix_spawnp HAVE_POSIX_SPAWNP)
1337 CHECK_FUNCTION_EXISTS_GLIBC(readlink HAVE_READLINK)
1338 CHECK_FUNCTION_EXISTS_GLIBC(readpassphrase HAVE_READPASSPHRASE)
1339 CHECK_FUNCTION_EXISTS_GLIBC(select HAVE_SELECT)
1340 CHECK_FUNCTION_EXISTS_GLIBC(setenv HAVE_SETENV)
1341 CHECK_FUNCTION_EXISTS_GLIBC(setlocale HAVE_SETLOCALE)
1342 CHECK_FUNCTION_EXISTS_GLIBC(sigaction HAVE_SIGACTION)
1343 CHECK_FUNCTION_EXISTS_GLIBC(statfs HAVE_STATFS)
1344 CHECK_FUNCTION_EXISTS_GLIBC(statvfs HAVE_STATVFS)
1345 CHECK_FUNCTION_EXISTS_GLIBC(strchr HAVE_STRCHR)
1346 CHECK_FUNCTION_EXISTS_GLIBC(strdup HAVE_STRDUP)
1347 CHECK_FUNCTION_EXISTS_GLIBC(strerror HAVE_STRERROR)
1348 CHECK_FUNCTION_EXISTS_GLIBC(strncpy_s HAVE_STRNCPY_S)
1349 CHECK_FUNCTION_EXISTS_GLIBC(strrchr HAVE_STRRCHR)
1350 CHECK_FUNCTION_EXISTS_GLIBC(symlink HAVE_SYMLINK)
1351 CHECK_FUNCTION_EXISTS_GLIBC(timegm HAVE_TIMEGM)
1352 CHECK_FUNCTION_EXISTS_GLIBC(tzset HAVE_TZSET)
1353 CHECK_FUNCTION_EXISTS_GLIBC(unlinkat HAVE_UNLINKAT)
1354 CHECK_FUNCTION_EXISTS_GLIBC(unsetenv HAVE_UNSETENV)
1355 CHECK_FUNCTION_EXISTS_GLIBC(utime HAVE_UTIME)
1356 CHECK_FUNCTION_EXISTS_GLIBC(utimes HAVE_UTIMES)
1357 CHECK_FUNCTION_EXISTS_GLIBC(utimensat HAVE_UTIMENSAT)
1358 CHECK_FUNCTION_EXISTS_GLIBC(vfork HAVE_VFORK)
1359 CHECK_FUNCTION_EXISTS_GLIBC(wcrtomb HAVE_WCRTOMB)
1360 CHECK_FUNCTION_EXISTS_GLIBC(wcscmp HAVE_WCSCMP)
1361 CHECK_FUNCTION_EXISTS_GLIBC(wcscpy HAVE_WCSCPY)
1362 CHECK_FUNCTION_EXISTS_GLIBC(wcslen HAVE_WCSLEN)
1363 CHECK_FUNCTION_EXISTS_GLIBC(wctomb HAVE_WCTOMB)
1364 CHECK_FUNCTION_EXISTS_GLIBC(_ctime64_s HAVE__CTIME64_S)
1365 CHECK_FUNCTION_EXISTS_GLIBC(_fseeki64 HAVE__FSEEKI64)
1366 CHECK_FUNCTION_EXISTS_GLIBC(_get_timezone HAVE__GET_TIMEZONE)
1367 CHECK_FUNCTION_EXISTS_GLIBC(_localtime64_s HAVE__LOCALTIME64_S)
1368 CHECK_FUNCTION_EXISTS_GLIBC(_mkgmtime64 HAVE__MKGMTIME64)
1369
1370 SET(CMAKE_REQUIRED_LIBRARIES "")
1371 CHECK_FUNCTION_EXISTS(cygwin_conv_path HAVE_CYGWIN_CONV_PATH)
1372 CHECK_FUNCTION_EXISTS(fseeko HAVE_FSEEKO)
1373 CHECK_FUNCTION_EXISTS(strerror_r HAVE_STRERROR_R)
1374 CHECK_FUNCTION_EXISTS(strftime HAVE_STRFTIME)
1375 CHECK_FUNCTION_EXISTS(vprintf HAVE_VPRINTF)
1376 CHECK_FUNCTION_EXISTS(wmemcmp HAVE_WMEMCMP)
1377 CHECK_FUNCTION_EXISTS(wmemcpy HAVE_WMEMCPY)
1378 CHECK_FUNCTION_EXISTS(wmemmove HAVE_WMEMMOVE)
1379
1380 CMAKE_POP_CHECK_STATE() # Restore the state of the variables
1381
1382 CHECK_C_SOURCE_COMPILES(
1383   "#include <sys/types.h>\n#include <sys/mount.h>\nint main(void) { struct vfsconf v; return sizeof(v);}"
1384   HAVE_STRUCT_VFSCONF)
1385
1386 CHECK_C_SOURCE_COMPILES(
1387   "#include <sys/types.h>\n#include <sys/mount.h>\nint main(void) { struct xvfsconf v; return sizeof(v);}"
1388   HAVE_STRUCT_XVFSCONF)
1389
1390 # Make sure we have the POSIX version of readdir_r, not the
1391 # older 2-argument version.
1392 CHECK_C_SOURCE_COMPILES(
1393   "#include <dirent.h>\nint main() {DIR *d = opendir(\".\"); struct dirent e,*r; return readdir_r(d,&e,&r);}"
1394   HAVE_READDIR_R)
1395
1396 # dirfd can be either a function or a macro.
1397 CHECK_C_SOURCE_COMPILES(
1398   "#include <dirent.h>\nint main() {DIR *d = opendir(\".\"); return dirfd(d);}"
1399   HAVE_DIRFD)
1400
1401 # Only detect readlinkat() if we also have AT_FDCWD in unistd.h.
1402 # NOTE: linux requires fcntl.h for AT_FDCWD.
1403 CHECK_C_SOURCE_COMPILES(
1404   "#include <fcntl.h>\n#include <unistd.h>\nint main() {char buf[10]; return readlinkat(AT_FDCWD, \"\", buf, 0);}"
1405   HAVE_READLINKAT)
1406
1407
1408 # To verify major(), we need to both include the header
1409 # of interest and verify that the result can be linked.
1410 # CHECK_FUNCTION_EXISTS doesn't accept a header argument,
1411 # CHECK_SYMBOL_EXISTS doesn't test linkage.
1412 CHECK_C_SOURCE_COMPILES(
1413   "#include <sys/mkdev.h>\nint main() { return major(256); }"
1414   MAJOR_IN_MKDEV)
1415 CHECK_C_SOURCE_COMPILES(
1416   "#include <sys/sysmacros.h>\nint main() { return major(256); }"
1417   MAJOR_IN_SYSMACROS)
1418
1419 CHECK_C_SOURCE_COMPILES(
1420   "#include <lzma.h>\n#if LZMA_VERSION < 50020000\n#error unsupported\n#endif\nint main(void){lzma_stream_encoder_mt(0, 0); return 0;}"
1421   HAVE_LZMA_STREAM_ENCODER_MT)
1422
1423 IF(HAVE_STRERROR_R)
1424   SET(HAVE_DECL_STRERROR_R 1)
1425 ENDIF(HAVE_STRERROR_R)
1426
1427 #
1428 # Check defines
1429 #
1430 SET(headers "limits.h")
1431 IF(HAVE_STDINT_H)
1432   LIST(APPEND headers "stdint.h")
1433 ENDIF(HAVE_STDINT_H)
1434 IF(HAVE_INTTYPES_H)
1435   LIST(APPEND headers "inttypes.h")
1436 ENDIF(HAVE_INTTYPES_H)
1437 CHECK_SYMBOL_EXISTS(EFTYPE           "errno.h"    HAVE_EFTYPE)
1438 CHECK_SYMBOL_EXISTS(EILSEQ           "errno.h"    HAVE_EILSEQ)
1439 CHECK_SYMBOL_EXISTS(D_MD_ORDER       "langinfo.h" HAVE_D_MD_ORDER)
1440 CHECK_SYMBOL_EXISTS(INT32_MAX        "${headers}" HAVE_DECL_INT32_MAX)
1441 CHECK_SYMBOL_EXISTS(INT32_MIN        "${headers}" HAVE_DECL_INT32_MIN)
1442 CHECK_SYMBOL_EXISTS(INT64_MAX        "${headers}" HAVE_DECL_INT64_MAX)
1443 CHECK_SYMBOL_EXISTS(INT64_MIN        "${headers}" HAVE_DECL_INT64_MIN)
1444 CHECK_SYMBOL_EXISTS(INTMAX_MAX       "${headers}" HAVE_DECL_INTMAX_MAX)
1445 CHECK_SYMBOL_EXISTS(INTMAX_MIN       "${headers}" HAVE_DECL_INTMAX_MIN)
1446 CHECK_SYMBOL_EXISTS(UINT32_MAX       "${headers}" HAVE_DECL_UINT32_MAX)
1447 CHECK_SYMBOL_EXISTS(UINT64_MAX       "${headers}" HAVE_DECL_UINT64_MAX)
1448 CHECK_SYMBOL_EXISTS(UINTMAX_MAX      "${headers}" HAVE_DECL_UINTMAX_MAX)
1449 CHECK_SYMBOL_EXISTS(SIZE_MAX         "${headers}" HAVE_DECL_SIZE_MAX)
1450 CHECK_SYMBOL_EXISTS(SSIZE_MAX        "limits.h"   HAVE_DECL_SSIZE_MAX)
1451
1452 #
1453 # Check struct members
1454 #
1455 # Check for tm_gmtoff in struct tm
1456 CHECK_STRUCT_HAS_MEMBER("struct tm" tm_gmtoff
1457     "time.h" HAVE_STRUCT_TM_TM_GMTOFF)
1458 CHECK_STRUCT_HAS_MEMBER("struct tm" __tm_gmtoff
1459     "time.h" HAVE_STRUCT_TM___TM_GMTOFF)
1460
1461 # Check for f_namemax in struct statfs
1462 CHECK_STRUCT_HAS_MEMBER("struct statfs" f_namemax
1463     "sys/param.h;sys/mount.h" HAVE_STRUCT_STATFS_F_NAMEMAX)
1464
1465 # Check for birthtime in struct stat
1466 CHECK_STRUCT_HAS_MEMBER("struct stat" st_birthtime
1467     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_BIRTHTIME)
1468
1469 # Check for high-resolution timestamps in struct stat
1470 CHECK_STRUCT_HAS_MEMBER("struct stat" st_birthtimespec.tv_nsec
1471     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_BIRTHTIMESPEC_TV_NSEC)
1472 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtimespec.tv_nsec
1473     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC)
1474 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtim.tv_nsec
1475     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC)
1476 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtime_n
1477     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIME_N)
1478 CHECK_STRUCT_HAS_MEMBER("struct stat" st_umtime
1479     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_UMTIME)
1480 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtime_usec
1481     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIME_USEC)
1482 # Check for block size support in struct stat
1483 CHECK_STRUCT_HAS_MEMBER("struct stat" st_blksize
1484     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_BLKSIZE)
1485 # Check for st_flags in struct stat (BSD fflags)
1486 CHECK_STRUCT_HAS_MEMBER("struct stat" st_flags
1487     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_FLAGS)
1488
1489 IF(HAVE_SYS_STATVFS_H)
1490   CHECK_STRUCT_HAS_MEMBER("struct statvfs" f_iosize
1491     "sys/types.h;sys/statvfs.h" HAVE_STRUCT_STATVFS_F_IOSIZE)
1492 ENDIF()
1493
1494 #
1495 #
1496 CHECK_STRUCT_HAS_MEMBER("struct tm" tm_sec
1497     "sys/types.h;sys/time.h;time.h" TIME_WITH_SYS_TIME)
1498
1499 #
1500 # Check for integer types
1501 #
1502 #
1503 CHECK_TYPE_SIZE("short" SIZE_OF_SHORT)
1504 CHECK_TYPE_SIZE("int" SIZE_OF_INT)
1505 CHECK_TYPE_SIZE("long" SIZE_OF_LONG)
1506 CHECK_TYPE_SIZE("long long"     SIZE_OF_LONG_LONG)
1507
1508 CHECK_TYPE_SIZE("unsigned short" SIZE_OF_UNSIGNED_SHORT)
1509 CHECK_TYPE_SIZE("unsigned" SIZE_OF_UNSIGNED)
1510 CHECK_TYPE_SIZE("unsigned long" SIZE_OF_UNSIGNED_LONG)
1511 CHECK_TYPE_SIZE("unsigned long long" SIZE_OF_UNSIGNED_LONG_LONG)
1512
1513 CHECK_TYPE_SIZE("__int64" __INT64)
1514 CHECK_TYPE_SIZE("unsigned __int64" UNSIGNED___INT64)
1515
1516 CHECK_TYPE_SIZE(int16_t INT16_T)
1517 CHECK_TYPE_SIZE(int32_t INT32_T)
1518 CHECK_TYPE_SIZE(int64_t INT64_T)
1519 CHECK_TYPE_SIZE(intmax_t INTMAX_T)
1520 CHECK_TYPE_SIZE(uint8_t UINT8_T)
1521 CHECK_TYPE_SIZE(uint16_t UINT16_T)
1522 CHECK_TYPE_SIZE(uint32_t UINT32_T)
1523 CHECK_TYPE_SIZE(uint64_t UINT64_T)
1524 CHECK_TYPE_SIZE(uintmax_t UINTMAX_T)
1525
1526 CHECK_TYPE_SIZE(dev_t       DEV_T)
1527 IF(NOT HAVE_DEV_T)
1528   IF(MSVC)
1529     SET(dev_t "unsigned int")
1530   ENDIF(MSVC)
1531 ENDIF(NOT HAVE_DEV_T)
1532 #
1533 CHECK_TYPE_SIZE(gid_t       GID_T)
1534 IF(NOT HAVE_GID_T)
1535   IF(WIN32)
1536     SET(gid_t "short")
1537   ELSE(WIN32)
1538     SET(gid_t "unsigned int")
1539   ENDIF(WIN32)
1540 ENDIF(NOT HAVE_GID_T)
1541 #
1542 CHECK_TYPE_SIZE(id_t        ID_T)
1543 IF(NOT HAVE_ID_T)
1544   IF(WIN32)
1545     SET(id_t "short")
1546   ELSE(WIN32)
1547     SET(id_t "unsigned int")
1548   ENDIF(WIN32)
1549 ENDIF(NOT HAVE_ID_T)
1550 #
1551 CHECK_TYPE_SIZE(mode_t      MODE_T)
1552 IF(NOT HAVE_MODE_T)
1553   IF(WIN32)
1554     SET(mode_t "unsigned short")
1555   ELSE(WIN32)
1556     SET(mode_t "int")
1557   ENDIF(WIN32)
1558 ENDIF(NOT HAVE_MODE_T)
1559 #
1560 CHECK_TYPE_SIZE(off_t       OFF_T)
1561 IF(NOT HAVE_OFF_T)
1562   SET(off_t "__int64")
1563 ENDIF(NOT HAVE_OFF_T)
1564 #
1565 CHECK_TYPE_SIZE(size_t      SIZE_T)
1566 IF(NOT HAVE_SIZE_T)
1567   IF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1568     SET(size_t "uint64_t")
1569   ELSE("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1570     SET(size_t   "uint32_t")
1571   ENDIF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1572 ENDIF(NOT HAVE_SIZE_T)
1573 #
1574 CHECK_TYPE_SIZE(ssize_t     SSIZE_T)
1575 IF(NOT HAVE_SSIZE_T)
1576   IF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1577     SET(ssize_t "int64_t")
1578   ELSE("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1579     SET(ssize_t "long")
1580   ENDIF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1581 ENDIF(NOT HAVE_SSIZE_T)
1582 #
1583 CHECK_TYPE_SIZE(uid_t       UID_T)
1584 IF(NOT HAVE_UID_T)
1585   IF(WIN32)
1586     SET(uid_t "short")
1587   ELSE(WIN32)
1588     SET(uid_t "unsigned int")
1589   ENDIF(WIN32)
1590 ENDIF(NOT HAVE_UID_T)
1591 #
1592 CHECK_TYPE_SIZE(pid_t       PID_T)
1593 IF(NOT HAVE_PID_T)
1594   IF(WIN32)
1595     SET(pid_t "int")
1596   ELSE(WIN32)
1597     MESSAGE(FATAL_ERROR "pid_t doesn't exist on this platform?")
1598   ENDIF(WIN32)
1599 ENDIF(NOT HAVE_PID_T)
1600 #
1601 CHECK_TYPE_SIZE(intptr_t   INTPTR_T)
1602 IF(NOT HAVE_INTPTR_T)
1603   IF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1604     SET(intptr_t "int64_t")
1605   ELSE()
1606     SET(intptr_t "int32_t")
1607   ENDIF()
1608 ENDIF(NOT HAVE_INTPTR_T)
1609 #
1610 CHECK_TYPE_SIZE(uintptr_t   UINTPTR_T)
1611 IF(NOT HAVE_UINTPTR_T)
1612   IF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1613     SET(uintptr_t "uint64_t")
1614   ELSE()
1615     SET(uintptr_t "uint32_t")
1616   ENDIF()
1617 ENDIF(NOT HAVE_UINTPTR_T)
1618 #
1619 CHECK_TYPE_SIZE(wchar_t     SIZEOF_WCHAR_T)
1620 IF(HAVE_SIZEOF_WCHAR_T)
1621   SET(HAVE_WCHAR_T 1)
1622 ENDIF(HAVE_SIZEOF_WCHAR_T)
1623 #
1624 # Check if _FILE_OFFSET_BITS macro needed for large files
1625 #
1626 CHECK_FILE_OFFSET_BITS()
1627
1628 #
1629 # Check for Extended Attribute libraries, headers, and functions
1630 #
1631 IF(ENABLE_XATTR)
1632   CHECK_LIBRARY_EXISTS(attr "setxattr" "" HAVE_LIBATTR)
1633   IF(HAVE_LIBATTR)
1634     SET(CMAKE_REQUIRED_LIBRARIES "attr")
1635   ELSE()
1636     CHECK_LIBRARY_EXISTS(gnu "setxattr" "" HAVE_LIBATTR_GNU)
1637     IF(HAVE_LIBATTR_GNU)
1638       SET(CMAKE_REQUIRED_LIBRARIES "gnu")
1639     ENDIF()
1640   ENDIF(HAVE_LIBATTR)
1641   CHECK_SYMBOL_EXISTS(EXTATTR_NAMESPACE_USER "sys/types.h;sys/extattr.h" HAVE_DECL_EXTATTR_NAMESPACE_USER)
1642   CHECK_SYMBOL_EXISTS(XATTR_NOFOLLOW "sys/xattr.h" HAVE_DECL_XATTR_NOFOLLOW)
1643   IF(HAVE_SYS_XATTR_H AND HAVE_DECL_XATTR_NOFOLLOW)
1644     CHECK_FUNCTION_EXISTS(fgetxattr HAVE_FGETXATTR)
1645     CHECK_FUNCTION_EXISTS(flistxattr HAVE_FLISTXATTR)
1646     CHECK_FUNCTION_EXISTS(fsetxattr HAVE_FSETXATTR)
1647     CHECK_FUNCTION_EXISTS(getxattr HAVE_GETXATTR)
1648     CHECK_FUNCTION_EXISTS(listxattr HAVE_LISTXATTR)
1649     CHECK_FUNCTION_EXISTS(setxattr HAVE_SETXATTR)
1650     IF(HAVE_FGETXATTR AND
1651        HAVE_FLISTXATTR AND
1652        HAVE_FSETXATTR AND
1653        HAVE_GETXATTR AND
1654        HAVE_LISTXATTR AND
1655        HAVE_SETXATTR)
1656       SET(ARCHIVE_XATTR_DARWIN TRUE)
1657     ENDIF()
1658   ELSEIF(HAVE_SYS_EXTATTR_H AND HAVE_DECL_EXTATTR_NAMESPACE_USER)
1659     # FreeBSD xattr support
1660     CHECK_FUNCTION_EXISTS(extattr_get_fd HAVE_EXTATTR_GET_FD)
1661     CHECK_FUNCTION_EXISTS(extattr_get_file HAVE_EXTATTR_GET_FILE)
1662     CHECK_FUNCTION_EXISTS(extattr_get_link HAVE_EXTATTR_GET_LINK)
1663     CHECK_FUNCTION_EXISTS(extattr_list_fd HAVE_EXTATTR_LIST_FD)
1664     CHECK_FUNCTION_EXISTS(extattr_list_file HAVE_EXTATTR_LIST_FILE)
1665     CHECK_FUNCTION_EXISTS(extattr_list_link HAVE_EXTATTR_LIST_LINK)
1666     CHECK_FUNCTION_EXISTS(extattr_set_fd HAVE_EXTATTR_SET_FD)
1667     CHECK_FUNCTION_EXISTS(extattr_set_link HAVE_EXTATTR_SET_LINK)
1668     IF(HAVE_EXTATTR_GET_FD AND
1669        HAVE_EXTATTR_GET_FILE AND
1670        HAVE_EXTATTR_GET_LINK AND
1671        HAVE_EXTATTR_LIST_FD AND
1672        HAVE_EXTATTR_LIST_FILE AND
1673        HAVE_EXTATTR_LIST_LINK AND
1674        HAVE_EXTATTR_SET_FD AND
1675        HAVE_EXTATTR_SET_LINK)
1676       SET(ARCHIVE_XATTR_FREEBSD TRUE)
1677     ENDIF()
1678   ELSEIF(HAVE_SYS_XATTR_H OR HAVE_ATTR_XATTR_H)
1679     # Linux xattr support
1680     CHECK_FUNCTION_EXISTS_GLIBC(fgetxattr HAVE_FGETXATTR)
1681     CHECK_FUNCTION_EXISTS_GLIBC(flistxattr HAVE_FLISTXATTR)
1682     CHECK_FUNCTION_EXISTS_GLIBC(fsetxattr HAVE_FSETXATTR)
1683     CHECK_FUNCTION_EXISTS_GLIBC(getxattr HAVE_GETXATTR)
1684     CHECK_FUNCTION_EXISTS_GLIBC(lgetxattr HAVE_LGETXATTR)
1685     CHECK_FUNCTION_EXISTS_GLIBC(listxattr HAVE_LISTXATTR)
1686     CHECK_FUNCTION_EXISTS_GLIBC(llistxattr HAVE_LLISTXATTR)
1687     CHECK_FUNCTION_EXISTS_GLIBC(lsetxattr HAVE_LSETXATTR)
1688     IF(HAVE_FGETXATTR AND
1689        HAVE_FLISTXATTR AND
1690        HAVE_FSETXATTR AND
1691        HAVE_GETXATTR AND
1692        HAVE_LGETXATTR AND
1693        HAVE_LISTXATTR AND
1694        HAVE_LLISTXATTR AND
1695        HAVE_LSETXATTR)
1696       SET(ARCHIVE_XATTR_LINUX TRUE)
1697     ENDIF()
1698   ELSEIF(HAVE_SYS_EA_H)
1699     # AIX xattr support
1700     CHECK_FUNCTION_EXISTS(fgetea HAVE_FGETEA)
1701     CHECK_FUNCTION_EXISTS(flistea HAVE_FLISTEA)
1702     CHECK_FUNCTION_EXISTS(fsetea HAVE_FSETEA)
1703     CHECK_FUNCTION_EXISTS(getea HAVE_GETEA)
1704     CHECK_FUNCTION_EXISTS(lgetea HAVE_LGETEA)
1705     CHECK_FUNCTION_EXISTS(listea HAVE_LISTEA)
1706     CHECK_FUNCTION_EXISTS(llistea HAVE_LLISTEA)
1707     CHECK_FUNCTION_EXISTS(lsetea HAVE_LSETEA)
1708     IF(HAVE_FGETEA AND
1709        HAVE_FLISTEA AND
1710        HAVE_FSETEA AND
1711        HAVE_GETEA AND
1712        HAVE_LGETEA AND
1713        HAVE_LISTEA AND
1714        HAVE_LLISTEA AND
1715        HAVE_LSETEA)
1716       SET(ARCHIVE_XATTR_AIX TRUE)
1717     ENDIF()
1718   ENDIF()
1719
1720   IF(ARCHIVE_XATTR_DARWIN)
1721     MESSAGE(STATUS "Extended attributes support: Darwin")
1722   ELSEIF(ARCHIVE_XATTR_FREEBSD)
1723     MESSAGE(STATUS "Extended attributes support: FreeBSD")
1724   ELSEIF(ARCHIVE_XATTR_LINUX)
1725     MESSAGE(STATUS "Extended attributes support: Linux")
1726   ELSEIF(ARCHIVE_XATTR_AIX)
1727     MESSAGE(STATUS "Extended attributes support: AIX")
1728   ELSE()
1729     MESSAGE(STATUS "Extended attributes support: none")
1730   ENDIF()
1731 ELSE(ENABLE_XATTR)
1732   SET(ARCHIVE_XATTR_DARWIN FALSE)
1733   SET(ARCHIVE_XATTR_FREEBSD FALSE)
1734   SET(ARCHIVE_XATTR_LINUX FALSE)
1735   SET(ARCHIVE_XATTR_AIX FALSE)
1736 ENDIF(ENABLE_XATTR)
1737
1738 #
1739 # Check for ACL libraries, headers, and functions
1740 #
1741 # The ACL support in libarchive is written against the POSIX1e draft,
1742 # which was never officially approved and varies quite a bit across
1743 # platforms.  Worse, some systems have completely non-POSIX acl functions,
1744 # which makes the following checks rather more complex than I would like.
1745 #
1746 IF(ENABLE_ACL)
1747   # Solaris and derivates ACLs
1748   CHECK_FUNCTION_EXISTS(acl HAVE_ACL)
1749   CHECK_FUNCTION_EXISTS(facl HAVE_FACL)
1750
1751   # Libacl
1752   CHECK_LIBRARY_EXISTS(acl "acl_get_file" "" HAVE_LIBACL)
1753   IF(HAVE_LIBACL)
1754     SET(CMAKE_REQUIRED_LIBRARIES "acl")
1755     FIND_LIBRARY(ACL_LIBRARY NAMES acl)
1756     LIST(APPEND ADDITIONAL_LIBS ${ACL_LIBRARY})
1757   ENDIF(HAVE_LIBACL)
1758
1759   CHECK_TYPE_EXISTS(acl_t "sys/types.h;sys/acl.h" HAVE_ACL_T)
1760   CHECK_TYPE_EXISTS(acl_entry_t "sys/types.h;sys/acl.h" HAVE_ACL_ENTRY_T)
1761   CHECK_TYPE_EXISTS(acl_permset_t "sys/types.h;sys/acl.h" HAVE_ACL_PERMSET_T)
1762   CHECK_TYPE_EXISTS(acl_tag_t "sys/types.h;sys/acl.h" HAVE_ACL_TAG_T)
1763
1764   IF(HAVE_ACL AND HAVE_FACL)
1765     CHECK_TYPE_EXISTS(aclent_t "sys/acl.h" HAVE_ACLENT_T)
1766     IF(HAVE_ACLENT_T)
1767       CHECK_SYMBOL_EXISTS(GETACL "sys/acl.h" HAVE_DECL_GETACL)
1768       CHECK_SYMBOL_EXISTS(GETACLCNT "sys/acl.h" HAVE_DECL_GETACLCNT)
1769       CHECK_SYMBOL_EXISTS(SETACL "sys/acl.h" HAVE_DECL_SETACL)
1770       IF(HAVE_DECL_GETACL AND
1771          HAVE_DECL_GETACLCNT AND
1772          HAVE_DECL_SETACL)
1773         SET(ARCHIVE_ACL_SUNOS TRUE)
1774       ENDIF()
1775       CHECK_TYPE_EXISTS(ace_t "sys/acl.h" HAVE_ACE_T)
1776       IF(HAVE_ACE_T)
1777         CHECK_SYMBOL_EXISTS(ACE_GETACL "sys/acl.h" HAVE_DECL_ACE_GETACL)
1778         CHECK_SYMBOL_EXISTS(ACE_GETACLCNT "sys/acl.h" HAVE_DECL_ACE_GETACLCNT)
1779         CHECK_SYMBOL_EXISTS(ACE_SETACL "sys/acl.h" HAVE_DECL_ACE_SETACL)
1780         IF(HAVE_DECL_ACE_GETACL AND
1781            HAVE_DECL_ACE_GETACLCNT AND
1782            HAVE_DECL_ACE_SETACL)
1783           SET(ARCHIVE_ACL_SUNOS_NFS4 TRUE)
1784         ENDIF()
1785       ENDIF(HAVE_ACE_T)
1786     ENDIF(HAVE_ACLENT_T)
1787   ENDIF(HAVE_ACL AND HAVE_FACL)
1788
1789   IF(HAVE_ACL_T AND HAVE_ACL_ENTRY_T AND HAVE_ACL_PERMSET_T AND HAVE_ACL_TAG_T)
1790     CHECK_FUNCTION_EXISTS_GLIBC(acl_add_perm HAVE_ACL_ADD_PERM)
1791     CHECK_FUNCTION_EXISTS_GLIBC(acl_clear_perms HAVE_ACL_CLEAR_PERMS)
1792     CHECK_FUNCTION_EXISTS_GLIBC(acl_create_entry HAVE_ACL_CREATE_ENTRY)
1793     CHECK_FUNCTION_EXISTS_GLIBC(acl_delete_def_file HAVE_ACL_DELETE_DEF_FILE)
1794     CHECK_FUNCTION_EXISTS_GLIBC(acl_free HAVE_ACL_FREE)
1795     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_entry HAVE_ACL_GET_ENTRY)
1796     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_fd HAVE_ACL_GET_FD)
1797     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_file HAVE_ACL_GET_FILE)
1798     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_permset HAVE_ACL_GET_PERMSET)
1799     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_qualifier HAVE_ACL_GET_QUALIFIER)
1800     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_tag_type HAVE_ACL_GET_TAG_TYPE)
1801     CHECK_FUNCTION_EXISTS_GLIBC(acl_init HAVE_ACL_INIT)
1802     CHECK_FUNCTION_EXISTS_GLIBC(acl_set_fd HAVE_ACL_SET_FD)
1803     CHECK_FUNCTION_EXISTS_GLIBC(acl_set_file HAVE_ACL_SET_FILE)
1804     CHECK_FUNCTION_EXISTS_GLIBC(acl_set_qualifier HAVE_ACL_SET_QUALIFIER)
1805     CHECK_FUNCTION_EXISTS_GLIBC(acl_set_tag_type HAVE_ACL_SET_TAG_TYPE)
1806     IF(HAVE_ACL_ADD_PERM AND
1807        HAVE_ACL_CLEAR_PERMS AND
1808        HAVE_ACL_CREATE_ENTRY AND
1809        HAVE_ACL_DELETE_DEF_FILE AND
1810        HAVE_ACL_FREE AND
1811        HAVE_ACL_GET_ENTRY AND
1812        HAVE_ACL_GET_FD AND
1813        HAVE_ACL_GET_FILE AND
1814        HAVE_ACL_GET_PERMSET AND
1815        HAVE_ACL_GET_QUALIFIER AND
1816        HAVE_ACL_GET_TAG_TYPE AND
1817        HAVE_ACL_INIT AND
1818        HAVE_ACL_SET_FD AND
1819        HAVE_ACL_SET_FILE AND
1820        HAVE_ACL_SET_QUALIFIER AND
1821        HAVE_ACL_SET_TAG_TYPE)
1822          SET(HAVE_POSIX_ACL_FUNCS 1)
1823     ENDIF()
1824
1825     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_perm HAVE_ACL_GET_PERM)
1826
1827     IF(HAVE_POSIX_ACL_FUNCS AND HAVE_ACL_LIBACL_H AND HAVE_LIBACL AND
1828        HAVE_ACL_GET_PERM)
1829       SET(ARCHIVE_ACL_LIBACL TRUE)
1830     ELSE()
1831       CHECK_FUNCTION_EXISTS(acl_add_flag_np HAVE_ACL_ADD_FLAG_NP)
1832       CHECK_FUNCTION_EXISTS(acl_clear_flags_np HAVE_ACL_CLEAR_FLAGS_NP)
1833       CHECK_FUNCTION_EXISTS(acl_get_brand_np HAVE_ACL_GET_BRAND_NP)
1834       CHECK_FUNCTION_EXISTS(acl_get_entry_type_np HAVE_ACL_GET_ENTRY_TYPE_NP)
1835       CHECK_FUNCTION_EXISTS(acl_get_flag_np HAVE_ACL_GET_FLAG_NP)
1836       CHECK_FUNCTION_EXISTS(acl_get_flagset_np HAVE_ACL_GET_FLAGSET_NP)
1837       CHECK_FUNCTION_EXISTS(acl_get_fd_np HAVE_ACL_GET_FD_NP)
1838       CHECK_FUNCTION_EXISTS(acl_get_link_np HAVE_ACL_GET_LINK_NP)
1839       CHECK_FUNCTION_EXISTS(acl_get_perm_np HAVE_ACL_GET_PERM_NP)
1840       CHECK_FUNCTION_EXISTS(acl_is_trivial_np HAVE_ACL_IS_TRIVIAL_NP)
1841       CHECK_FUNCTION_EXISTS(acl_set_entry_type_np HAVE_ACL_SET_ENTRY_TYPE_NP)
1842       CHECK_FUNCTION_EXISTS(acl_set_fd_np HAVE_ACL_SET_FD_NP)
1843       CHECK_FUNCTION_EXISTS(acl_set_link_np HAVE_ACL_SET_LINK_NP)
1844       CHECK_FUNCTION_EXISTS(mbr_gid_to_uuid HAVE_MBR_GID_TO_UUID)
1845       CHECK_FUNCTION_EXISTS(mbr_uid_to_uuid HAVE_MBR_UID_TO_UUID)
1846       CHECK_FUNCTION_EXISTS(mbr_uuid_to_id HAVE_MBR_UUID_TO_ID)
1847
1848       CHECK_C_SOURCE_COMPILES("#include <sys/types.h>
1849 #include <sys/acl.h>
1850 int main(void) { return ACL_TYPE_EXTENDED; }" HAVE_DECL_ACL_TYPE_EXTENDED)
1851       CHECK_C_SOURCE_COMPILES("#include <sys/types.h>
1852 #include <sys/acl.h>
1853 int main(void) { return ACL_SYNCHRONIZE; }" HAVE_DECL_ACL_SYNCHRONIZE)
1854       CHECK_SYMBOL_EXISTS(ACL_TYPE_NFS4 "sys/acl.h" HAVE_DECL_ACL_TYPE_NFS4)
1855       CHECK_SYMBOL_EXISTS(ACL_USER "sys/acl.h" HAVE_DECL_ACL_USER)
1856
1857       IF(HAVE_POSIX_ACL_FUNCS AND
1858          HAVE_ACL_GET_FD_NP AND
1859          HAVE_ACL_GET_PERM_NP AND
1860          NOT HAVE_ACL_GET_PERM AND
1861          HAVE_ACL_SET_FD_NP)
1862         IF(HAVE_DECL_ACL_USER)
1863           SET(ARCHIVE_ACL_FREEBSD TRUE)
1864           IF(HAVE_DECL_ACL_TYPE_NFS4 AND
1865              HAVE_ACL_ADD_FLAG_NP AND
1866              HAVE_ACL_CLEAR_FLAGS_NP AND
1867              HAVE_ACL_GET_BRAND_NP AND
1868              HAVE_ACL_GET_ENTRY_TYPE_NP AND
1869              HAVE_ACL_GET_FLAGSET_NP AND
1870              HAVE_ACL_SET_ENTRY_TYPE_NP)
1871             SET(ARCHIVE_ACL_FREEBSD_NFS4 TRUE)
1872           ENDIF()
1873         ELSEIF(HAVE_DECL_ACL_TYPE_EXTENDED AND
1874                HAVE_MEMBERSHIP_H AND
1875                HAVE_ACL_ADD_FLAG_NP AND
1876                HAVE_ACL_CLEAR_FLAGS_NP AND
1877                HAVE_ACL_GET_FLAGSET_NP AND
1878                HAVE_ACL_GET_LINK_NP AND
1879                HAVE_ACL_SET_LINK_NP AND
1880                HAVE_MBR_UID_TO_UUID AND
1881                HAVE_MBR_GID_TO_UUID AND
1882                HAVE_MBR_UUID_TO_ID)
1883           SET(ARCHIVE_ACL_DARWIN TRUE)
1884         ENDIF()
1885       ENDIF()
1886     ENDIF()
1887   ENDIF(HAVE_ACL_T AND HAVE_ACL_ENTRY_T AND HAVE_ACL_PERMSET_T AND
1888         HAVE_ACL_TAG_T)
1889
1890   # Richacl
1891   CHECK_LIBRARY_EXISTS(richacl "richacl_get_file" "" HAVE_LIBRICHACL)
1892   IF(HAVE_LIBRICHACL)
1893     SET(CMAKE_REQUIRED_LIBRARIES "richacl")
1894     FIND_LIBRARY(RICHACL_LIBRARY NAMES richacl)
1895     LIST(APPEND ADDITIONAL_LIBS ${RICHACL_LIBRARY})
1896   ENDIF(HAVE_LIBRICHACL)
1897
1898   CHECK_STRUCT_HAS_MEMBER("struct richace" e_type "sys/richacl.h"
1899     HAVE_STRUCT_RICHACE)
1900   CHECK_STRUCT_HAS_MEMBER("struct richacl" a_flags "sys/richacl.h"
1901     HAVE_STRUCT_RICHACL)
1902
1903   IF(HAVE_LIBRICHACL AND HAVE_STRUCT_RICHACL AND HAVE_STRUCT_RICHACE)
1904     CHECK_FUNCTION_EXISTS_GLIBC(richacl_alloc HAVE_RICHACL_ALLOC)
1905     CHECK_FUNCTION_EXISTS_GLIBC(richacl_equiv_mode HAVE_RICHACL_EQUIV_MODE)
1906     CHECK_FUNCTION_EXISTS_GLIBC(richacl_free HAVE_RICHACL_FREE)
1907     CHECK_FUNCTION_EXISTS_GLIBC(richacl_get_fd HAVE_RICHACL_GET_FD)
1908     CHECK_FUNCTION_EXISTS_GLIBC(richacl_get_file HAVE_RICHACL_GET_FILE)
1909     CHECK_FUNCTION_EXISTS_GLIBC(richacl_set_fd HAVE_RICHACL_SET_FD)
1910     CHECK_FUNCTION_EXISTS_GLIBC(richacl_set_file HAVE_RICHACL_SET_FILE)
1911     IF(HAVE_RICHACL_ALLOC AND
1912        HAVE_RICHACL_EQUIV_MODE AND
1913        HAVE_RICHACL_FREE AND
1914        HAVE_RICHACL_GET_FD AND
1915        HAVE_RICHACL_GET_FILE AND
1916        HAVE_RICHACL_SET_FD AND
1917        HAVE_RICHACL_SET_FILE)
1918       SET(ARCHIVE_ACL_LIBRICHACL TRUE)
1919     ENDIF()
1920   ENDIF(HAVE_LIBRICHACL AND HAVE_STRUCT_RICHACL AND HAVE_STRUCT_RICHACE)
1921
1922   IF(ARCHIVE_ACL_DARWIN)
1923     MESSAGE(STATUS "ACL support: Darwin (limited NFSv4)")
1924   ELSEIF(ARCHIVE_ACL_FREEBSD_NFS4)
1925     MESSAGE(STATUS "ACL support: FreeBSD (POSIX.1e and NFSv4)")
1926   ELSEIF(ARCHIVE_ACL_FREEBSD)
1927     MESSAGE(STATUS "ACL support: FreeBSD (POSIX.1e)")
1928   ELSEIF(ARCHIVE_ACL_LIBACL OR ARCHIVE_ACL_LIBRICHACL)
1929     IF(ARCHIVE_ACL_LIBACL AND ARCHIVE_ACL_LIBRICHACL)
1930       MESSAGE(STATUS "ACL support: libacl (POSIX.1e) + librichacl (NFSv4)")
1931     ELSEIF(ARCHIVE_ACL_LIBRICHACL)
1932       MESSAGE(STATUS "ACL support: librichacl (NFSv4)")
1933     ELSE()
1934       MESSAGE(STATUS "ACL support: libacl (POSIX.1e)")
1935     ENDIF()
1936   ELSEIF(ARCHIVE_ACL_SUNOS_NFS4)
1937     MESSAGE(STATUS "ACL support: Solaris (POSIX.1e and NFSv4)")
1938   ELSEIF(ARCHIVE_ACL_SUNOS)
1939     MESSAGE(STATUS "ACL support: Solaris (POSIX.1e)")
1940   ELSE()
1941     MESSAGE(STATUS "ACL support: none")
1942   ENDIF()
1943
1944 ELSE(ENABLE_ACL)
1945   # If someone runs cmake, then disables ACL support, we need
1946   # to forcibly override the cached values for these.
1947   SET(ARCHIVE_ACL_DARWIN FALSE)
1948   SET(ARCHIVE_ACL_FREEBSD FALSE)
1949   SET(ARCHIVE_ACL_FREEBSD_NFS4 FALSE)
1950   SET(ARCHIVE_ACL_LIBACL FALSE)
1951   SET(ARCHIVE_ACL_SUNOS FALSE)
1952   SET(ARCHIVE_ACL_SUNOS_NFS4 FALSE)
1953 ENDIF(ENABLE_ACL)
1954
1955 #
1956 # Check MD5/RMD160/SHA support
1957 # NOTE: Crypto checks must be run last before generating config.h
1958 #
1959 CHECK_CRYPTO("MD5;RMD160;SHA1;SHA256;SHA384;SHA512" LIBC)
1960 CHECK_CRYPTO("SHA256;SHA384;SHA512" LIBC2)
1961 CHECK_CRYPTO("SHA256;SHA384;SHA512" LIBC3)
1962 CHECK_CRYPTO("MD5;SHA1;SHA256;SHA384;SHA512" LIBSYSTEM)
1963 CHECK_CRYPTO("MD5;RMD160;SHA1;SHA256;SHA384;SHA512" NETTLE)
1964 CHECK_CRYPTO("MD5;RMD160;SHA1;SHA256;SHA384;SHA512" OPENSSL)
1965
1966 # Libmd has to be probed after OpenSSL.
1967 CHECK_CRYPTO("MD5;RMD160;SHA1;SHA256;SHA512" LIBMD)
1968
1969 CHECK_CRYPTO_WIN("MD5;SHA1;SHA256;SHA384;SHA512")
1970
1971 # Generate "config.h" from "build/cmake/config.h.in"
1972 CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/build/cmake/config.h.in
1973         ${CMAKE_CURRENT_BINARY_DIR}/config.h)
1974 INCLUDE_DIRECTORIES(BEFORE ${CMAKE_CURRENT_BINARY_DIR})
1975 ADD_DEFINITIONS(-DHAVE_CONFIG_H)
1976
1977 # Handle generation of the libarchive.pc file for pkg-config
1978 INCLUDE(CreatePkgConfigFile)
1979
1980 #
1981 # Register installation of PDF documents.
1982 #
1983 IF(WIN32 AND NOT CYGWIN)
1984   #
1985   # On Windows platform, It's better that we install PDF documents
1986   # on one's computer.
1987   # These PDF documents are available in the release package.
1988   #
1989   IF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/doc/pdf)
1990     INSTALL(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/doc/pdf
1991             DESTINATION share/man
1992             FILES_MATCHING PATTERN "*.pdf"
1993     )
1994   ENDIF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/doc/pdf)
1995 ENDIF(WIN32 AND NOT CYGWIN)
1996 #
1997 #
1998 #
1999 INCLUDE_DIRECTORIES(BEFORE ${CMAKE_CURRENT_SOURCE_DIR}/libarchive)
2000 #
2001 IF(MSVC)
2002   ADD_DEFINITIONS(-D_CRT_SECURE_NO_DEPRECATE)
2003 ENDIF(MSVC)
2004
2005 IF(ENABLE_TEST)
2006   ADD_CUSTOM_TARGET(run_all_tests)
2007 ENDIF(ENABLE_TEST)
2008
2009 add_subdirectory(libarchive)
2010 add_subdirectory(cat)
2011 add_subdirectory(tar)
2012 add_subdirectory(cpio)