CMakeLists.txt

   1 #
   2 CMAKE_MINIMUM_REQUIRED(VERSION 2.8.12 FATAL_ERROR)
   3 if(POLICY CMP0065)
   4   cmake_policy(SET CMP0065 NEW) #3.4 don't use `-rdynamic` with executables
   5 endif()
   6 if(POLICY CMP0074)
   7   cmake_policy(SET CMP0074 NEW) #3.12.0 `find_package()`` uses ``<PackageName>_ROOT`` variables.
   8 endif()
   9 #
  10 PROJECT(libarchive C)
  11 #
  12 SET(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/build/cmake")
  13 if(NOT CMAKE_RUNTIME_OUTPUT_DIRECTORY)
  14   set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${libarchive_BINARY_DIR}/bin)
  15 endif()
  16 #
  17 # Set the Build type for make based generators.
  18 # You can choose following types:
  19 #   Debug          : Debug build
  20 #   Release        : Release build
  21 #   RelWithDebInfo : Release build with Debug Info
  22 #   MinSizeRel     : Release Min Size build
  23 IF(NOT CMAKE_BUILD_TYPE)
  24   SET(CMAKE_BUILD_TYPE "Release" CACHE STRING "Build Type" FORCE)
  25 ENDIF(NOT CMAKE_BUILD_TYPE)
  26 # Set a value type to properly display CMAKE_BUILD_TYPE on GUI if the
  27 # value type is "UNINITIALIZED".
  28 GET_PROPERTY(cached_type CACHE CMAKE_BUILD_TYPE PROPERTY TYPE)
  29 IF("${cached_type}" STREQUAL "UNINITIALIZED")
  30   SET(CMAKE_BUILD_TYPE "${CMAKE_BUILD_TYPE}" CACHE STRING "Build Type" FORCE)
  31 ENDIF("${cached_type}" STREQUAL "UNINITIALIZED")
  32 # Check the Build Type.
  33 IF(NOT "${CMAKE_BUILD_TYPE}"
  34        MATCHES "^(Debug|Release|RelWithDebInfo|MinSizeRel)\$")
  35   MESSAGE(FATAL_ERROR
  36           "Unknown keyword for CMAKE_BUILD_TYPE: ${CMAKE_BUILD_TYPE}\n"
  37           "Acceptable keywords: Debug,Release,RelWithDebInfo,MinSizeRel")
  38 ENDIF(NOT "${CMAKE_BUILD_TYPE}"
  39           MATCHES "^(Debug|Release|RelWithDebInfo|MinSizeRel)\$")
  40
  41 # On MacOS, prefer MacPorts libraries to system libraries.
  42 # I haven't come up with a compelling argument for this to be conditional.
  43 list(APPEND CMAKE_PREFIX_PATH /opt/local)
  44 # Enable @rpath in the install name.
  45 # detail in "cmake  --help-policy CMP0042"
  46 SET(CMAKE_MACOSX_RPATH ON)
  47
  48 #
  49 # Version - read from 'version' file.
  50 #
  51 FILE(STRINGS ${CMAKE_CURRENT_SOURCE_DIR}/build/version _version)
  52 STRING(REGEX REPLACE
  53  "^([0-9])[0-9][0-9][0-9][0-9][0-9][0-9][a-z]*$" "\\1" _major ${_version})
  54 STRING(REGEX REPLACE
  55  "^[0-9]([0-9][0-9][0-9])[0-9][0-9][0-9][a-z]*$" "\\1" _minor ${_version})
  56 STRING(REGEX REPLACE
  57  "^[0-9][0-9][0-9][0-9]([0-9][0-9][0-9])[a-z]*$" "\\1" _revision ${_version})
  58 STRING(REGEX REPLACE
  59  "^[0-9][0-9][0-9][0-9][0-9][0-9][0-9]([a-z]*)$" "\\1" _quality ${_version})
  60 SET(_version_number ${_major}${_minor}${_revision})
  61 STRING(REGEX REPLACE "[0]*([^0]*[0-9])$" "\\1" _trimmed_minor ${_minor})
  62 STRING(REGEX REPLACE "[0]*([^0]*[0-9])$" "\\1" _trimmed_revision ${_revision})
  63 #
  64 SET(VERSION                    "${_major}.${_trimmed_minor}.${_trimmed_revision}${_quality}")
  65 SET(BSDCPIO_VERSION_STRING     "${VERSION}")
  66 SET(BSDTAR_VERSION_STRING      "${VERSION}")
  67 SET(BSDCAT_VERSION_STRING      "${VERSION}")
  68 SET(LIBARCHIVE_VERSION_NUMBER  "${_version_number}")
  69 SET(LIBARCHIVE_VERSION_STRING  "${VERSION}")
  70
  71 # INTERFACE_VERSION increments with every release
  72 # libarchive 2.7 == interface version 9 = 2 + 7
  73 # libarchive 2.8 == interface version 10 = 2 + 8
  74 # libarchive 2.9 == interface version 11 = 2 + 9
  75 # libarchive 3.0 == interface version 12
  76 # libarchive 3.1 == interface version 13
  77 math(EXPR INTERFACE_VERSION  "13 + ${_minor}")
  78
  79 # Set SOVERSION == Interface version
  80 # ?? Should there be more here ??
  81 SET(SOVERSION "${INTERFACE_VERSION}")
  82
  83 # Enable CMAKE_PUSH_CHECK_STATE() and CMAKE_POP_CHECK_STATE() macros
  84 # saving and restoring the state of the variables.
  85 INCLUDE(CMakePushCheckState)
  86
  87 # Initialize the state of the variables. This initialization is not
  88 # necessary but this shows you what value the variables initially have.
  89 SET(CMAKE_REQUIRED_DEFINITIONS)
  90 SET(CMAKE_REQUIRED_INCLUDES)
  91 SET(CMAKE_REQUIRED_LIBRARIES)
  92 SET(CMAKE_REQUIRED_FLAGS)
  93 if (CMAKE_BUILD_TYPE STREQUAL "Debug")
  94   OPTION(ENABLE_WERROR "Treat warnings as errors - default is ON for Debug, OFF otherwise." ON)
  95 else ()
  96   OPTION(ENABLE_WERROR "Treat warnings as errors - default is ON for Debug, OFF otherwise." OFF)
  97 endif ()
  98
  99 # Especially for early development, we want to be a little
 100 # aggressive about diagnosing build problems; this can get
 101 # relaxed somewhat in final shipping versions.
 102 IF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
 103     CMAKE_C_COMPILER_ID MATCHES "^Clang$")
 104   SET(CMAKE_REQUIRED_FLAGS "-Wall -Wformat -Wformat-security")
 105   #################################################################
 106   # Set compile flags for all build types.
 107   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wall -Wformat -Wformat-security")
 108   if (ENABLE_WERROR)
 109     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
 110   endif ()
 111   #################################################################
 112   # Set compile flags for debug build.
 113   # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug"
 114   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g")
 115   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wextra")
 116   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wunused")
 117   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wshadow")
 118   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wmissing-prototypes")
 119   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -Wcast-qual")
 120   # Ideally this will be a compile/link time check, yet there's no obvious way
 121   # how considering how old our minimum required cmake version is. The official
 122   # cmake.org side does not host the manual pages even. Normally we can use
 123   # either of the following two, yet neither is supported as of 3.0.2
 124   # - check_linker_flag - does not exist
 125   # - try_compile - does not support linker flags
 126   #
 127   # The CI fails with this on MacOS
 128   IF(NOT CMAKE_SYSTEM_NAME MATCHES "Darwin")
 129     # Place the functions and data into separate sections, allowing the linker
 130     # to garbage collect the unused ones.
 131     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -ffunction-sections -fdata-sections")
 132     SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--gc-sections")
 133     SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--gc-sections")
 134     # Printing the discarded section is "too much", so enable on demand.
 135     #SET(CMAKE_EXE_LINKER_FLAGS_DEBUG "${CMAKE_EXE_LINKER_FLAGS_DEBUG} -Wl,--print-gc-sections")
 136     #SET(CMAKE_SHARED_LINKER_FLAGS_DEBUG "${CMAKE_SHARED_LINKER_FLAGS_DEBUG} -Wl,--print-gc-sections")
 137   ENDIF(NOT CMAKE_SYSTEM_NAME MATCHES "Darwin")
 138 ENDIF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
 139        CMAKE_C_COMPILER_ID MATCHES "^Clang$")
 140 IF (CMAKE_C_COMPILER_ID MATCHES "^XL$")
 141   SET(CMAKE_C_COMPILER "xlc_r")
 142   SET(CMAKE_REQUIRED_FLAGS "-qflag=e:e -qformat=sec")
 143   #################################################################
 144   # Set compile flags for all build types.
 145   SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -qflag=e:e -qformat=sec")
 146   if (ENABLE_WERROR)
 147     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -qhalt=w")
 148   endif ()
 149   #################################################################
 150   # Set compile flags for debug build.
 151   # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug"
 152   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -g")
 153   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -qflag=w:w")
 154   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} -qinfo=pro:use")
 155 ENDIF(CMAKE_C_COMPILER_ID MATCHES "^XL$")
 156 IF (MSVC)
 157   if (ENABLE_WERROR)
 158     # /WX option is the same as gcc's -Werror option.
 159     SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /WX")
 160   endif ()
 161   #################################################################
 162   # Set compile flags for debug build.
 163   # This is added into CMAKE_C_FLAGS when CMAKE_BUILD_TYPE is "Debug"
 164   # Enable level 4 C4062: The enumerate has no associated handler in a switch
 165   #                       statement and there is no default that can catch it.
 166   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /w14062")
 167   # Enable level 4 C4254: A larger bit field was assigned to a smaller bit
 168   #                       field.
 169   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /w14254")
 170   # Enable level 4 C4295: An array was initialized but the last character in
 171   #                       the array is not a null; accessing the array may
 172   #                       produce unexpected results.
 173   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /w14295")
 174   # Enable level 4 C4296: An unsigned variable was used in a comparison
 175   #                       operation with zero.
 176   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /w14296")
 177   # Enable level 4 C4389: An operation involved signed and unsigned variables.
 178   #                       This could result in a loss of data.
 179   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /w14389")
 180   # Enable level 4 C4505: The given function is local and not referenced in
 181   #                       the body of the module; therefore, the function is
 182   #                       dead code.
 183   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /w14505")
 184   # Enable level 4 C4514: The optimizer removed an inline function that is not
 185   #                       called.
 186   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /w14514")
 187   # Enable level 4 C4702: Unreachable code.
 188   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /w14702")
 189   # Enable level 4 C4706: The test value in a conditional expression was the
 190   #                       result of an assignment.
 191   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /w14706")
 192   # /Oi option enables built-in functions.
 193   SET(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /Oi")
 194   #################################################################
 195   # Set compile flags for release build.
 196   SET(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /Oi")
 197 ENDIF (MSVC)
 198
 199 # Enable CTest/CDash support
 200 include(CTest)
 201
 202 OPTION(ENABLE_MBEDTLS "Enable use of mbed TLS" OFF)
 203 OPTION(ENABLE_NETTLE "Enable use of Nettle" OFF)
 204 OPTION(ENABLE_OPENSSL "Enable use of OpenSSL" ON)
 205 OPTION(ENABLE_LIBB2 "Enable the use of the system LIBB2 library if found" ON)
 206 OPTION(ENABLE_LZ4 "Enable the use of the system LZ4 library if found" ON)
 207 OPTION(ENABLE_LZO "Enable the use of the system LZO library if found" OFF)
 208 OPTION(ENABLE_LZMA "Enable the use of the system LZMA library if found" ON)
 209 OPTION(ENABLE_ZSTD "Enable the use of the system zstd library if found" ON)
 210
 211 OPTION(ENABLE_ZLIB "Enable the use of the system ZLIB library if found" ON)
 212 OPTION(ENABLE_BZip2 "Enable the use of the system BZip2 library if found" ON)
 213 OPTION(ENABLE_LIBXML2 "Enable the use of the system libxml2 library if found" ON)
 214 OPTION(ENABLE_EXPAT "Enable the use of the system EXPAT library if found" ON)
 215 OPTION(ENABLE_PCREPOSIX "Enable the use of the system PCREPOSIX library if found" ON)
 216 OPTION(ENABLE_LibGCC "Enable the use of the system LibGCC library if found" ON)
 217 # CNG is used for encrypt/decrypt Zip archives on Windows.
 218 OPTION(ENABLE_CNG "Enable the use of CNG(Crypto Next Generation)" ON)
 219
 220 OPTION(ENABLE_TAR "Enable tar building" ON)
 221 OPTION(ENABLE_TAR_SHARED "Enable dynamic build of tar" FALSE)
 222 OPTION(ENABLE_CPIO "Enable cpio building" ON)
 223 OPTION(ENABLE_CPIO_SHARED "Enable dynamic build of cpio" FALSE)
 224 OPTION(ENABLE_CAT "Enable cat building" ON)
 225 OPTION(ENABLE_CAT_SHARED "Enable dynamic build of cat" FALSE)
 226 OPTION(ENABLE_XATTR "Enable extended attribute support" ON)
 227 OPTION(ENABLE_ACL "Enable ACL support" ON)
 228 OPTION(ENABLE_ICONV "Enable iconv support" ON)
 229 OPTION(ENABLE_TEST "Enable unit and regression tests" ON)
 230 OPTION(ENABLE_COVERAGE "Enable code coverage (GCC only, automatically sets ENABLE_TEST to ON)" FALSE)
 231 OPTION(ENABLE_INSTALL "Enable installing of libraries" ON)
 232
 233 SET(POSIX_REGEX_LIB "AUTO" CACHE STRING "Choose what library should provide POSIX regular expression support")
 234 SET(ENABLE_SAFESEH "AUTO" CACHE STRING "Enable use of /SAFESEH linker flag (MSVC only)")
 235 SET(WINDOWS_VERSION "WIN7" CACHE STRING "Set Windows version to use (Windows only)")
 236
 237 IF(ENABLE_COVERAGE)
 238         include(LibarchiveCodeCoverage)
 239 ENDIF(ENABLE_COVERAGE)
 240
 241 IF(ENABLE_TEST)
 242         ENABLE_TESTING()
 243 ENDIF(ENABLE_TEST)
 244
 245 IF(WIN32)
 246   IF(WINDOWS_VERSION STREQUAL "WIN8")
 247     SET(NTDDI_VERSION 0x06020000)
 248     SET(_WIN32_WINNT 0x0602)
 249     SET(WINVER 0x0602)
 250   ELSEIF(WINDOWS_VERSION STREQUAL "WIN7")
 251     SET(NTDDI_VERSION 0x06010000)
 252     SET(_WIN32_WINNT 0x0601)
 253     SET(WINVER 0x0601)
 254   ELSEIF(WINDOWS_VERSION STREQUAL "WS08")
 255     SET(NTDDI_VERSION 0x06000100)
 256     SET(_WIN32_WINNT 0x0600)
 257     SET(WINVER 0x0600)
 258   ELSEIF(WINDOWS_VERSION STREQUAL "VISTA")
 259     SET(NTDDI_VERSION 0x06000000)
 260     SET(_WIN32_WINNT 0x0600)
 261     SET(WINVER 0x0600)
 262   ELSEIF(WINDOWS_VERSION STREQUAL "WS03")
 263     SET(NTDDI_VERSION 0x05020000)
 264     SET(_WIN32_WINNT 0x0502)
 265     SET(WINVER 0x0502)
 266   ELSEIF(WINDOWS_VERSION STREQUAL "WINXP")
 267     SET(NTDDI_VERSION 0x05010000)
 268     SET(_WIN32_WINNT 0x0501)
 269     SET(WINVER 0x0501)
 270   ELSE(WINDOWS_VERSION STREQUAL "WIN8")
 271     # Default to Windows Server 2003 API if we don't recognize the specifier
 272     SET(NTDDI_VERSION 0x05020000)
 273     SET(_WIN32_WINNT 0x0502)
 274     SET(WINVER 0x0502)
 275   ENDIF(WINDOWS_VERSION STREQUAL "WIN8")
 276 ENDIF(WIN32)
 277
 278 IF(MSVC)
 279   IF(ENABLE_SAFESEH STREQUAL "YES")
 280     SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /SAFESEH")
 281     SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SAFESEH")
 282     SET(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} /SAFESEH")
 283     SET(ENV{LDFLAGS} "$ENV{LDFLAGS} /SAFESEH")
 284   ELSEIF(ENABLE_SAFESEH STREQUAL "NO")
 285     SET(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /SAFESEH:NO")
 286     SET(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SAFESEH:NO")
 287     SET(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} /SAFESEH:NO")
 288     SET(ENV{LDFLAGS} "$ENV{LDFLAGS} /SAFESEH:NO")
 289   ENDIF(ENABLE_SAFESEH STREQUAL "YES")
 290 ENDIF(MSVC)
 291
 292 IF("${CMAKE_C_PLATFORM_ID}" MATCHES "^(HP-UX)$")
 293   ADD_DEFINITIONS(-D_XOPEN_SOURCE=500) # Ask wchar.h for mbstate_t
 294 ENDIF()
 295
 296 IF(MINGW)
 297   ADD_DEFINITIONS(-D__USE_MINGW_ANSI_STDIO)
 298 ENDIF()
 299
 300 #
 301 INCLUDE(CheckCSourceCompiles)
 302 INCLUDE(CheckCSourceRuns)
 303 INCLUDE(CheckFileOffsetBits)
 304 INCLUDE(CheckFuncs)
 305 INCLUDE(CheckHeaderDirent)
 306 INCLUDE(CheckIncludeFile)
 307 INCLUDE(CheckIncludeFiles)
 308 INCLUDE(CheckLibraryExists)
 309 INCLUDE(CheckStructHasMember)
 310 INCLUDE(CheckSymbolExists)
 311 INCLUDE(CheckTypeExists)
 312 INCLUDE(CheckTypeSize)
 313
 314 #
 315 # Generate list.h
 316 #
 317 MACRO (GENERATE_LIST_H _listfile _cmlist __list_sources)
 318   SET(_argv ${ARGV})
 319   # Remove _listfile and _cmlist from _argv
 320   LIST(REMOVE_AT _argv 0 1)
 321   IF (NOT EXISTS "${_listfile}" OR
 322      ${_cmlist} IS_NEWER_THAN "${_listfile}")
 323
 324     MESSAGE(STATUS "Generating ${_listfile}")
 325     FILE(WRITE ${_listfile} "")
 326     FOREACH (testfile ${_argv})
 327       IF (testfile MATCHES "^test_[^/]+[.]c$")
 328         FILE(STRINGS ${testfile} testvar REGEX "^DEFINE_TEST")
 329         FOREACH (deftest ${testvar})
 330           FILE(APPEND ${_listfile} "${deftest}\n")
 331         ENDFOREACH (deftest)
 332       ENDIF (testfile MATCHES "^test_[^/]+[.]c$")
 333     ENDFOREACH (testfile)
 334
 335   ENDIF (NOT EXISTS "${_listfile}" OR
 336      ${_cmlist} IS_NEWER_THAN "${_listfile}")
 337 ENDMACRO (GENERATE_LIST_H)
 338 #
 339 # Generate installation rules for man pages.
 340 #
 341 MACRO (INSTALL_MAN __mans)
 342   FOREACH (_man ${ARGV})
 343     STRING(REGEX REPLACE "^.+[.]([1-9])" "\\1" _mansect ${_man})
 344     INSTALL(FILES ${_man} DESTINATION "share/man/man${_mansect}")
 345   ENDFOREACH (_man)
 346 ENDMACRO (INSTALL_MAN __mans)
 347 #
 348 # Find out what macro is needed to use libraries on Windows.
 349 #
 350 MACRO (TRY_MACRO_FOR_LIBRARY INCLUDES LIBRARIES
 351        TRY_TYPE SAMPLE_SOURCE MACRO_LIST)
 352   IF(WIN32 AND NOT CYGWIN)
 353     CMAKE_PUSH_CHECK_STATE()    # Save the state of the variables
 354     SET(CMAKE_REQUIRED_INCLUDES ${INCLUDES})
 355     SET(CMAKE_REQUIRED_LIBRARIES ${LIBRARIES})
 356     FOREACH(VAR ${MACRO_LIST})
 357       # Clear ${VAR} from CACHE If the libraries which ${VAR} was
 358       # checked with are changed.
 359       SET(VAR_WITH_LIB "${VAR}_WITH_LIB")
 360       GET_PROPERTY(PREV_VAR_WITH_LIB VARIABLE PROPERTY ${VAR_WITH_LIB})
 361       IF(NOT "${PREV_VAR_WITH_LIB}" STREQUAL "${LIBRARIES}")
 362         UNSET(${VAR} CACHE)
 363       ENDIF(NOT "${PREV_VAR_WITH_LIB}" STREQUAL "${LIBRARIES}")
 364       # Check if the library can be used with the macro.
 365       IF("${TRY_TYPE}" MATCHES "COMPILES")
 366         CHECK_C_SOURCE_COMPILES("${SAMPLE_SOURCE}" ${VAR})
 367       ELSEIF("${TRY_TYPE}" MATCHES "RUNS")
 368         CHECK_C_SOURCE_RUNS("${SAMPLE_SOURCE}" ${VAR})
 369       ELSE("${TRY_TYPE}" MATCHES "COMPILES")
 370         MESSAGE(FATAL_ERROR "UNKNOWN KEYWORD \"${TRY_TYPE}\" FOR TRY_TYPE")
 371       ENDIF("${TRY_TYPE}" MATCHES "COMPILES")
 372       # Save the libraries which ${VAR} is checked with.
 373       SET(${VAR_WITH_LIB} "${LIBRARIES}" CACHE INTERNAL
 374           "Macro ${VAR} is checked with")
 375     ENDFOREACH(VAR)
 376     CMAKE_POP_CHECK_STATE()     # Restore the state of the variables
 377   ENDIF(WIN32 AND NOT CYGWIN)
 378 ENDMACRO (TRY_MACRO_FOR_LIBRARY)
 379 #
 380 # Check compress/decompress libraries
 381 #
 382 IF(WIN32 AND NOT CMAKE_CL_64 AND NOT CYGWIN)
 383   # GnuWin32 is only for Win32, not Win64.
 384   SET(__GNUWIN32PATH "C:/Program Files/GnuWin32")
 385 ENDIF(WIN32 AND NOT CMAKE_CL_64 AND NOT CYGWIN)
 386 IF(DEFINED __GNUWIN32PATH AND EXISTS "${__GNUWIN32PATH}")
 387   # You have to add a path available DLL file into PATH environment variable.
 388   # Maybe DLL path is "C:/Program Files/GnuWin32/bin".
 389   # The zlib and the bzip2 Setup program have installed programs and DLLs into
 390   # "C:/Program Files/GnuWin32" by default.
 391   # This is convenience setting for Windows.
 392   SET(CMAKE_PREFIX_PATH ${__GNUWIN32PATH} $(CMAKE_PREFIX_PATH))
 393   #
 394   # If you didn't use Setup program or installed into nonstandard path,
 395   # cmake cannot find out your zlib or bzip2 libraries and include files,
 396   # you should execute cmake with  -DCMAKE_PREFIX_PATH option.
 397   #   e.g.
 398   #     cmake -DCMAKE_PREFIX_PATH=<your-GnuWin32-path> <path-to-source>
 399   #
 400   # If compiling error occurred in zconf.h, You may need patch to zconf.h.
 401   #--- zconf.h.orig     2005-07-21 00:40:26.000000000
 402   #+++ zconf.h  2009-01-19 11:39:10.093750000
 403   #@@ -286,7 +286,7 @@
 404   #
 405   # #if 1           /* HAVE_UNISTD_H -- this line is updated by ./configure */
 406   # #  include <sys/types.h> /* for off_t */
 407   #-#  include <unistd.h>    /* for SEEK_* and off_t */
 408   #+#  include <stdio.h>    /* for SEEK_* and off_t */
 409   # #  ifdef VMS
 410   # #    include <unixio.h>   /* for off_t */
 411   # #  endif
 412 ENDIF(DEFINED __GNUWIN32PATH AND EXISTS "${__GNUWIN32PATH}")
 413
 414 SET(ADDITIONAL_LIBS "")
 415 #
 416 # Find ZLIB
 417 #
 418 IF(ENABLE_ZLIB)
 419   FIND_PACKAGE(ZLIB)
 420 ELSE()
 421   SET(ZLIB_FOUND FALSE) # Override cached value
 422 ENDIF()
 423 IF(ZLIB_FOUND)
 424   SET(HAVE_LIBZ 1)
 425   SET(HAVE_ZLIB_H 1)
 426   INCLUDE_DIRECTORIES(${ZLIB_INCLUDE_DIR})
 427   LIST(APPEND ADDITIONAL_LIBS ${ZLIB_LIBRARIES})
 428   IF(WIN32 AND NOT CYGWIN)
 429     #
 430     # Test if ZLIB_WINAPI macro is needed to use.
 431     #
 432     TRY_MACRO_FOR_LIBRARY(
 433       "${ZLIB_INCLUDE_DIR}" "${ZLIB_LIBRARIES}"
 434       RUNS
 435       "#include <zlib.h>\nint main() {uLong f = zlibCompileFlags(); return (f&(1U<<10))?0:-1; }"
 436       ZLIB_WINAPI)
 437     IF(ZLIB_WINAPI)
 438       ADD_DEFINITIONS(-DZLIB_WINAPI)
 439     ELSE(ZLIB_WINAPI)
 440       # Test if a macro is needed for the library.
 441       TRY_MACRO_FOR_LIBRARY(
 442         "${ZLIB_INCLUDE_DIR}" "${ZLIB_LIBRARIES}"
 443         COMPILES
 444         "#include <zlib.h>\nint main() {return zlibVersion()?1:0; }"
 445         "ZLIB_DLL;WITHOUT_ZLIB_DLL")
 446       IF(ZLIB_DLL)
 447         ADD_DEFINITIONS(-DZLIB_DLL)
 448       ENDIF(ZLIB_DLL)
 449     ENDIF(ZLIB_WINAPI)
 450   ENDIF(WIN32 AND NOT CYGWIN)
 451 ENDIF(ZLIB_FOUND)
 452 MARK_AS_ADVANCED(CLEAR ZLIB_INCLUDE_DIR)
 453 MARK_AS_ADVANCED(CLEAR ZLIB_LIBRARY)
 454 #
 455 # Find BZip2
 456 #
 457 IF(ENABLE_BZip2)
 458   FIND_PACKAGE(BZip2)
 459 ELSE()
 460   SET(BZIP2_FOUND FALSE) # Override cached value
 461 ENDIF()
 462 IF(BZIP2_FOUND)
 463   SET(HAVE_LIBBZ2 1)
 464   SET(HAVE_BZLIB_H 1)
 465   INCLUDE_DIRECTORIES(${BZIP2_INCLUDE_DIR})
 466   LIST(APPEND ADDITIONAL_LIBS ${BZIP2_LIBRARIES})
 467   # Test if a macro is needed for the library.
 468   TRY_MACRO_FOR_LIBRARY(
 469     "${BZIP2_INCLUDE_DIR}" "${BZIP2_LIBRARIES}"
 470     COMPILES
 471     "#include <bzlib.h>\nint main() {return BZ2_bzlibVersion()?1:0; }"
 472     "USE_BZIP2_DLL;USE_BZIP2_STATIC")
 473   IF(USE_BZIP2_DLL)
 474     ADD_DEFINITIONS(-DUSE_BZIP2_DLL)
 475   ELSEIF(USE_BZIP2_STATIC)
 476     ADD_DEFINITIONS(-DUSE_BZIP2_STATIC)
 477   ENDIF(USE_BZIP2_DLL)
 478 ENDIF(BZIP2_FOUND)
 479 MARK_AS_ADVANCED(CLEAR BZIP2_INCLUDE_DIR)
 480 MARK_AS_ADVANCED(CLEAR BZIP2_LIBRARIES)
 481
 482
 483 #
 484 # Find LZMA
 485 #
 486 IF(ENABLE_LZMA)
 487   FIND_PACKAGE(LibLZMA)
 488 ELSE()
 489   SET(LIBLZMA_FOUND FALSE) # Override cached value
 490 ENDIF()
 491
 492 IF(LIBLZMA_FOUND)
 493   SET(HAVE_LIBLZMA 1)
 494   SET(HAVE_LZMA_H 1)
 495   CMAKE_PUSH_CHECK_STATE()
 496   SET(CMAKE_REQUIRED_INCLUDES ${LIBLZMA_INCLUDE_DIR})
 497   SET(CMAKE_REQUIRED_LIBRARIES ${LIBLZMA_LIBRARIES})
 498   INCLUDE_DIRECTORIES(${LIBLZMA_INCLUDE_DIRS})
 499   LIST(APPEND ADDITIONAL_LIBS ${LIBLZMA_LIBRARIES})
 500   # Test if a macro is needed for the library.
 501   TRY_MACRO_FOR_LIBRARY(
 502     "${LIBLZMA_INCLUDE_DIRS}" "${LIBLZMA_LIBRARIES}"
 503     COMPILES
 504     "#include <lzma.h>\nint main() {return (int)lzma_version_number(); }"
 505     "WITHOUT_LZMA_API_STATIC;LZMA_API_STATIC")
 506   IF(NOT WITHOUT_LZMA_API_STATIC AND LZMA_API_STATIC)
 507     ADD_DEFINITIONS(-DLZMA_API_STATIC)
 508   ENDIF(NOT WITHOUT_LZMA_API_STATIC AND LZMA_API_STATIC)
 509   CMAKE_POP_CHECK_STATE()
 510 ELSE(LIBLZMA_FOUND)
 511 # LZMA not found and will not be used.
 512 ENDIF(LIBLZMA_FOUND)
 513 MARK_AS_ADVANCED(CLEAR LIBLZMA_INCLUDE_DIR)
 514 MARK_AS_ADVANCED(CLEAR LIBLZMA_LIBRARY)
 515
 516 #
 517 # Find LZO2
 518 #
 519 IF(ENABLE_LZO)
 520   IF (LZO2_INCLUDE_DIR)
 521     # Already in cache, be silent
 522     SET(LZO2_FIND_QUIETLY TRUE)
 523   ENDIF (LZO2_INCLUDE_DIR)
 524
 525   FIND_PATH(LZO2_INCLUDE_DIR lzo/lzoconf.h)
 526   FIND_LIBRARY(LZO2_LIBRARY NAMES lzo2 liblzo2)
 527   INCLUDE(FindPackageHandleStandardArgs)
 528   FIND_PACKAGE_HANDLE_STANDARD_ARGS(LZO2 DEFAULT_MSG LZO2_LIBRARY LZO2_INCLUDE_DIR)
 529 ELSE(ENABLE_LZO)
 530   SET(LZO2_FOUND FALSE) # Override cached value
 531 ENDIF(ENABLE_LZO)
 532 IF(LZO2_FOUND)
 533   SET(HAVE_LIBLZO2 1)
 534   SET(HAVE_LZO_LZOCONF_H 1)
 535   SET(HAVE_LZO_LZO1X_H 1)
 536   INCLUDE_DIRECTORIES(${LZO2_INCLUDE_DIR})
 537   LIST(APPEND ADDITIONAL_LIBS ${LZO2_LIBRARY})
 538   #
 539   # TODO: test for static library.
 540   #
 541 ENDIF(LZO2_FOUND)
 542 MARK_AS_ADVANCED(CLEAR LZO2_INCLUDE_DIR)
 543 MARK_AS_ADVANCED(CLEAR LZO2_LIBRARY)
 544 #
 545 # Find libb2
 546 #
 547 IF(ENABLE_LIBB2)
 548   IF (LIBB2_INCLUDE_DIR)
 549     # Already in cache, be silent
 550     SET(LIBB2_FIND_QUIETLY TRUE)
 551   ENDIF (LIBB2_INCLUDE_DIR)
 552
 553   FIND_PATH(LIBB2_INCLUDE_DIR blake2.h)
 554   FIND_LIBRARY(LIBB2_LIBRARY NAMES b2 libb2)
 555   INCLUDE(FindPackageHandleStandardArgs)
 556   FIND_PACKAGE_HANDLE_STANDARD_ARGS(LIBB2 DEFAULT_MSG LIBB2_LIBRARY LIBB2_INCLUDE_DIR)
 557 ELSE(ENABLE_LIBB2)
 558   SET(LIBB2_FOUND FALSE) # Override cached value
 559 ENDIF(ENABLE_LIBB2)
 560 IF(LIBB2_FOUND)
 561   SET(HAVE_LIBB2 1)
 562   SET(HAVE_BLAKE2_H 1)
 563   SET(ARCHIVE_BLAKE2 FALSE)
 564   LIST(APPEND ADDITIONAL_LIBS ${LIBB2_LIBRARY})
 565   CMAKE_PUSH_CHECK_STATE()
 566   SET(CMAKE_REQUIRED_LIBRARIES ${LIBB2_LIBRARY})
 567   SET(CMAKE_REQUIRED_INCLUDES ${LIBB2_INCLUDE_DIR})
 568   CHECK_FUNCTION_EXISTS(blake2sp_init HAVE_LIBB2)
 569   CMAKE_POP_CHECK_STATE()
 570 ELSE(LIBB2_FOUND)
 571   SET(ARCHIVE_BLAKE2 TRUE)
 572 ENDIF(LIBB2_FOUND)
 573 #
 574 # Find LZ4
 575 #
 576 IF(ENABLE_LZ4)
 577   IF (LZ4_INCLUDE_DIR)
 578     # Already in cache, be silent
 579     SET(LZ4_FIND_QUIETLY TRUE)
 580   ENDIF (LZ4_INCLUDE_DIR)
 581
 582   FIND_PATH(LZ4_INCLUDE_DIR lz4.h)
 583   FIND_LIBRARY(LZ4_LIBRARY NAMES lz4 liblz4)
 584   INCLUDE(FindPackageHandleStandardArgs)
 585   FIND_PACKAGE_HANDLE_STANDARD_ARGS(LZ4 DEFAULT_MSG LZ4_LIBRARY LZ4_INCLUDE_DIR)
 586 ELSE(ENABLE_LZ4)
 587   SET(LZ4_FOUND FALSE) # Override cached value
 588 ENDIF(ENABLE_LZ4)
 589 IF(LZ4_FOUND)
 590   SET(HAVE_LIBLZ4 1)
 591   SET(HAVE_LZ4_H 1)
 592   CMAKE_PUSH_CHECK_STATE()      # Save the state of the variables
 593   SET(CMAKE_REQUIRED_INCLUDES ${LZ4_INCLUDE_DIR})
 594   CHECK_INCLUDE_FILES("lz4hc.h" HAVE_LZ4HC_H)
 595   CMAKE_POP_CHECK_STATE()       # Restore the state of the variables
 596   INCLUDE_DIRECTORIES(${LZ4_INCLUDE_DIR})
 597   LIST(APPEND ADDITIONAL_LIBS ${LZ4_LIBRARY})
 598   #
 599   # TODO: test for static library.
 600   #
 601 ENDIF(LZ4_FOUND)
 602 MARK_AS_ADVANCED(CLEAR LZ4_INCLUDE_DIR)
 603 MARK_AS_ADVANCED(CLEAR LZ4_LIBRARY)
 604 #
 605 # Find Zstd
 606 #
 607 IF(ENABLE_ZSTD)
 608   IF (ZSTD_INCLUDE_DIR)
 609     # Already in cache, be silent
 610     SET(ZSTD_FIND_QUIETLY TRUE)
 611   ENDIF (ZSTD_INCLUDE_DIR)
 612
 613   FIND_PATH(ZSTD_INCLUDE_DIR zstd.h)
 614   FIND_LIBRARY(ZSTD_LIBRARY NAMES zstd libzstd)
 615   INCLUDE(FindPackageHandleStandardArgs)
 616   FIND_PACKAGE_HANDLE_STANDARD_ARGS(ZSTD DEFAULT_MSG ZSTD_LIBRARY ZSTD_INCLUDE_DIR)
 617 ELSE(ENABLE_ZSTD)
 618   SET(ZSTD_FOUND FALSE) # Override cached value
 619 ENDIF(ENABLE_ZSTD)
 620 IF(ZSTD_FOUND)
 621   SET(HAVE_ZSTD_H 1)
 622   INCLUDE_DIRECTORIES(${ZSTD_INCLUDE_DIR})
 623   LIST(APPEND ADDITIONAL_LIBS ${ZSTD_LIBRARY})
 624   CMAKE_PUSH_CHECK_STATE()
 625   SET(CMAKE_REQUIRED_LIBRARIES ${ZSTD_LIBRARY})
 626   SET(CMAKE_REQUIRED_INCLUDES ${ZSTD_INCLUDE_DIR})
 627   CHECK_FUNCTION_EXISTS(ZSTD_decompressStream HAVE_LIBZSTD)
 628   CHECK_FUNCTION_EXISTS(ZSTD_compressStream HAVE_LIBZSTD_COMPRESSOR)
 629   #
 630   # TODO: test for static library.
 631   #
 632   CMAKE_POP_CHECK_STATE()
 633 ENDIF(ZSTD_FOUND)
 634 MARK_AS_ADVANCED(CLEAR ZSTD_INCLUDE_DIR)
 635 MARK_AS_ADVANCED(CLEAR ZSTD_LIBRARY)
 636
 637
 638 #
 639 # Check headers
 640 #
 641 CHECK_HEADER_DIRENT()
 642
 643 SET(INCLUDES "")
 644 MACRO (LA_CHECK_INCLUDE_FILE header var)
 645       CHECK_INCLUDE_FILES("${INCLUDES};${header}" ${var})
 646       IF (${var})
 647          SET(INCLUDES ${INCLUDES} ${header})
 648       ENDIF (${var})
 649 ENDMACRO (LA_CHECK_INCLUDE_FILE)
 650
 651 # Some FreeBSD headers assume sys/types.h was already included.
 652 LA_CHECK_INCLUDE_FILE("sys/types.h" HAVE_SYS_TYPES_H)
 653
 654 # Alphabetize the rest unless there's a compelling reason
 655 LA_CHECK_INCLUDE_FILE("acl/libacl.h" HAVE_ACL_LIBACL_H)
 656 LA_CHECK_INCLUDE_FILE("attr/xattr.h" HAVE_ATTR_XATTR_H)
 657 LA_CHECK_INCLUDE_FILE("ctype.h" HAVE_CTYPE_H)
 658 LA_CHECK_INCLUDE_FILE("copyfile.h" HAVE_COPYFILE_H)
 659 LA_CHECK_INCLUDE_FILE("direct.h" HAVE_DIRECT_H)
 660 LA_CHECK_INCLUDE_FILE("dlfcn.h" HAVE_DLFCN_H)
 661 LA_CHECK_INCLUDE_FILE("errno.h" HAVE_ERRNO_H)
 662 LA_CHECK_INCLUDE_FILE("ext2fs/ext2_fs.h" HAVE_EXT2FS_EXT2_FS_H)
 663
 664 CHECK_C_SOURCE_COMPILES("#include <sys/ioctl.h>
 665 #include <ext2fs/ext2_fs.h>
 666 int main(void) { return EXT2_IOC_GETFLAGS; }" HAVE_WORKING_EXT2_IOC_GETFLAGS)
 667
 668 LA_CHECK_INCLUDE_FILE("fcntl.h" HAVE_FCNTL_H)
 669 LA_CHECK_INCLUDE_FILE("grp.h" HAVE_GRP_H)
 670 LA_CHECK_INCLUDE_FILE("inttypes.h" HAVE_INTTYPES_H)
 671 LA_CHECK_INCLUDE_FILE("io.h" HAVE_IO_H)
 672 LA_CHECK_INCLUDE_FILE("langinfo.h" HAVE_LANGINFO_H)
 673 LA_CHECK_INCLUDE_FILE("limits.h" HAVE_LIMITS_H)
 674 LA_CHECK_INCLUDE_FILE("linux/types.h" HAVE_LINUX_TYPES_H)
 675 LA_CHECK_INCLUDE_FILE("linux/fiemap.h" HAVE_LINUX_FIEMAP_H)
 676 LA_CHECK_INCLUDE_FILE("linux/fs.h" HAVE_LINUX_FS_H)
 677
 678 CHECK_C_SOURCE_COMPILES("#include <sys/ioctl.h>
 679 #include <linux/fs.h>
 680 int main(void) { return FS_IOC_GETFLAGS; }" HAVE_WORKING_FS_IOC_GETFLAGS)
 681
 682 LA_CHECK_INCLUDE_FILE("linux/magic.h" HAVE_LINUX_MAGIC_H)
 683 LA_CHECK_INCLUDE_FILE("locale.h" HAVE_LOCALE_H)
 684 LA_CHECK_INCLUDE_FILE("membership.h" HAVE_MEMBERSHIP_H)
 685 LA_CHECK_INCLUDE_FILE("memory.h" HAVE_MEMORY_H)
 686 LA_CHECK_INCLUDE_FILE("paths.h" HAVE_PATHS_H)
 687 LA_CHECK_INCLUDE_FILE("poll.h" HAVE_POLL_H)
 688 LA_CHECK_INCLUDE_FILE("process.h" HAVE_PROCESS_H)
 689 LA_CHECK_INCLUDE_FILE("pthread.h" HAVE_PTHREAD_H)
 690 LA_CHECK_INCLUDE_FILE("pwd.h" HAVE_PWD_H)
 691 LA_CHECK_INCLUDE_FILE("readpassphrase.h" HAVE_READPASSPHRASE_H)
 692 LA_CHECK_INCLUDE_FILE("regex.h" HAVE_REGEX_H)
 693 LA_CHECK_INCLUDE_FILE("signal.h" HAVE_SIGNAL_H)
 694 LA_CHECK_INCLUDE_FILE("spawn.h" HAVE_SPAWN_H)
 695 LA_CHECK_INCLUDE_FILE("stdarg.h" HAVE_STDARG_H)
 696 LA_CHECK_INCLUDE_FILE("stdint.h" HAVE_STDINT_H)
 697 LA_CHECK_INCLUDE_FILE("stdlib.h" HAVE_STDLIB_H)
 698 LA_CHECK_INCLUDE_FILE("string.h" HAVE_STRING_H)
 699 LA_CHECK_INCLUDE_FILE("strings.h" HAVE_STRINGS_H)
 700 LA_CHECK_INCLUDE_FILE("sys/acl.h" HAVE_SYS_ACL_H)
 701 LA_CHECK_INCLUDE_FILE("sys/cdefs.h" HAVE_SYS_CDEFS_H)
 702 LA_CHECK_INCLUDE_FILE("sys/extattr.h" HAVE_SYS_EXTATTR_H)
 703 LA_CHECK_INCLUDE_FILE("sys/ioctl.h" HAVE_SYS_IOCTL_H)
 704 LA_CHECK_INCLUDE_FILE("sys/mkdev.h" HAVE_SYS_MKDEV_H)
 705 LA_CHECK_INCLUDE_FILE("sys/mount.h" HAVE_SYS_MOUNT_H)
 706 LA_CHECK_INCLUDE_FILE("sys/param.h" HAVE_SYS_PARAM_H)
 707 LA_CHECK_INCLUDE_FILE("sys/poll.h" HAVE_SYS_POLL_H)
 708 LA_CHECK_INCLUDE_FILE("sys/richacl.h" HAVE_SYS_RICHACL_H)
 709 LA_CHECK_INCLUDE_FILE("sys/select.h" HAVE_SYS_SELECT_H)
 710 LA_CHECK_INCLUDE_FILE("sys/stat.h" HAVE_SYS_STAT_H)
 711 LA_CHECK_INCLUDE_FILE("sys/statfs.h" HAVE_SYS_STATFS_H)
 712 LA_CHECK_INCLUDE_FILE("sys/statvfs.h" HAVE_SYS_STATVFS_H)
 713 LA_CHECK_INCLUDE_FILE("sys/sysmacros.h" HAVE_SYS_SYSMACROS_H)
 714 LA_CHECK_INCLUDE_FILE("sys/time.h" HAVE_SYS_TIME_H)
 715 LA_CHECK_INCLUDE_FILE("sys/utime.h" HAVE_SYS_UTIME_H)
 716 LA_CHECK_INCLUDE_FILE("sys/utsname.h" HAVE_SYS_UTSNAME_H)
 717 LA_CHECK_INCLUDE_FILE("sys/vfs.h" HAVE_SYS_VFS_H)
 718 LA_CHECK_INCLUDE_FILE("sys/wait.h" HAVE_SYS_WAIT_H)
 719 LA_CHECK_INCLUDE_FILE("sys/xattr.h" HAVE_SYS_XATTR_H)
 720 LA_CHECK_INCLUDE_FILE("time.h" HAVE_TIME_H)
 721 LA_CHECK_INCLUDE_FILE("unistd.h" HAVE_UNISTD_H)
 722 LA_CHECK_INCLUDE_FILE("utime.h" HAVE_UTIME_H)
 723 LA_CHECK_INCLUDE_FILE("wchar.h" HAVE_WCHAR_H)
 724 LA_CHECK_INCLUDE_FILE("wctype.h" HAVE_WCTYPE_H)
 725 LA_CHECK_INCLUDE_FILE("windows.h" HAVE_WINDOWS_H)
 726 IF(ENABLE_CNG)
 727   LA_CHECK_INCLUDE_FILE("Bcrypt.h" HAVE_BCRYPT_H)
 728   IF(HAVE_BCRYPT_H)
 729     LIST(APPEND ADDITIONAL_LIBS "Bcrypt")
 730   ENDIF(HAVE_BCRYPT_H)
 731 ELSE(ENABLE_CNG)
 732   UNSET(HAVE_BCRYPT_H CACHE)
 733 ENDIF(ENABLE_CNG)
 734 # Following files need windows.h, so we should test it after windows.h test.
 735 LA_CHECK_INCLUDE_FILE("wincrypt.h" HAVE_WINCRYPT_H)
 736 LA_CHECK_INCLUDE_FILE("winioctl.h" HAVE_WINIOCTL_H)
 737
 738 #
 739 # Check whether use of __EXTENSIONS__ is safe.
 740 # We need some macro such as _GNU_SOURCE to use extension functions.
 741 #
 742 SET(_INCLUDE_FILES)
 743 FOREACH (it ${_HEADER})
 744    SET(_INCLUDE_FILES "${_INCLUDE_FILES}#include <${it}>\n")
 745 ENDFOREACH (it)
 746
 747 CHECK_C_SOURCE_COMPILES(
 748   "#define __EXTENSIONS__ 1
 749    ${_INCLUDE_FILES}
 750    int main() { return 0;}"
 751  SAFE_TO_DEFINE_EXTENSIONS)
 752
 753 #
 754 # Find mbed TLS
 755 #
 756 IF(ENABLE_MBEDTLS)
 757   FIND_PACKAGE(MbedTLS)
 758   IF(MBEDTLS_FOUND)
 759     SET(HAVE_LIBMBEDCRYPTO 1)
 760     LIST(APPEND ADDITIONAL_LIBS ${MBEDCRYPTO_LIBRARY})
 761     INCLUDE_DIRECTORIES(${MBEDTLS_INCLUDE_DIRS})
 762
 763     LIST(APPEND CMAKE_REQUIRED_INCLUDES ${MBEDTLS_INCLUDE_DIRS})
 764     LA_CHECK_INCLUDE_FILE("mbedtls/aes.h" HAVE_MBEDTLS_AES_H)
 765     LA_CHECK_INCLUDE_FILE("mbedtls/md.h" HAVE_MBEDTLS_MD_H)
 766     LA_CHECK_INCLUDE_FILE("mbedtls/pkcs5.h" HAVE_MBEDTLS_PKCS5_H)
 767
 768   ENDIF(MBEDTLS_FOUND)
 769   MARK_AS_ADVANCED(CLEAR MBEDTLS_INCLUDE_DIRS)
 770   MARK_AS_ADVANCED(CLEAR MBEDCRYPTO_LIBRARY)
 771 ENDIF(ENABLE_MBEDTLS)
 772
 773 #
 774 # Find Nettle
 775 #
 776 IF(ENABLE_NETTLE)
 777   FIND_PACKAGE(Nettle)
 778   IF(NETTLE_FOUND)
 779     SET(HAVE_LIBNETTLE 1)
 780     LIST(APPEND ADDITIONAL_LIBS ${NETTLE_LIBRARIES})
 781     INCLUDE_DIRECTORIES(${NETTLE_INCLUDE_DIR})
 782
 783     LIST(APPEND CMAKE_REQUIRED_INCLUDES ${NETTLE_INCLUDE_DIR})
 784     LA_CHECK_INCLUDE_FILE("nettle/aes.h" HAVE_NETTLE_AES_H)
 785     LA_CHECK_INCLUDE_FILE("nettle/hmac.h" HAVE_NETTLE_HMAC_H)
 786     LA_CHECK_INCLUDE_FILE("nettle/md5.h" HAVE_NETTLE_MD5_H)
 787     LA_CHECK_INCLUDE_FILE("nettle/pbkdf2.h" HAVE_NETTLE_PBKDF2_H)
 788     LA_CHECK_INCLUDE_FILE("nettle/ripemd160.h" HAVE_NETTLE_RIPEMD160_H)
 789     LA_CHECK_INCLUDE_FILE("nettle/sha.h" HAVE_NETTLE_SHA_H)
 790
 791   ENDIF(NETTLE_FOUND)
 792   MARK_AS_ADVANCED(CLEAR NETTLE_INCLUDE_DIR)
 793   MARK_AS_ADVANCED(CLEAR NETTLE_LIBRARIES)
 794 ENDIF(ENABLE_NETTLE)
 795
 796 #
 797 # Find OpenSSL
 798 # (Except on Mac, where OpenSSL is deprecated.)
 799 #
 800 IF(ENABLE_OPENSSL AND NOT CMAKE_SYSTEM_NAME MATCHES "Darwin")
 801   FIND_PACKAGE(OpenSSL)
 802   IF(OPENSSL_FOUND)
 803     SET(HAVE_LIBCRYPTO 1)
 804     INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
 805     LIST(APPEND ADDITIONAL_LIBS ${OPENSSL_CRYPTO_LIBRARY})
 806   ENDIF(OPENSSL_FOUND)
 807 ELSE()
 808   SET(OPENSSL_FOUND FALSE) # Override cached value
 809 ENDIF()
 810
 811 # FreeBSD libmd
 812 IF(NOT OPENSSL_FOUND)
 813   CHECK_LIBRARY_EXISTS(md "MD5Init" "" LIBMD_FOUND)
 814   IF(LIBMD_FOUND)
 815     CMAKE_PUSH_CHECK_STATE()    # Save the state of the variables
 816     SET(CMAKE_REQUIRED_LIBRARIES "md")
 817     FIND_LIBRARY(LIBMD_LIBRARY NAMES md)
 818     LIST(APPEND ADDITIONAL_LIBS ${LIBMD_LIBRARY})
 819     CMAKE_POP_CHECK_STATE()     # Restore the state of the variables
 820   ENDIF(LIBMD_FOUND)
 821 ENDIF(NOT OPENSSL_FOUND)
 822
 823 #
 824 # How to prove that CRYPTO functions, which have several names on various
 825 # platforms, just see if archive_digest.c can compile and link against
 826 # required libraries.
 827 #
 828 MACRO(CHECK_CRYPTO ALGORITHMS IMPLEMENTATION)
 829     FOREACH(ALGORITHM ${ALGORITHMS})
 830       IF(NOT ARCHIVE_CRYPTO_${ALGORITHM})
 831       STRING(TOLOWER "${ALGORITHM}" lower_algorithm)
 832       STRING(TOUPPER "${ALGORITHM}" algorithm)
 833       IF ("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND NOT OPENSSL_FOUND)
 834         SET(ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION} FALSE)
 835       ELSEIF("${IMPLEMENTATION}" MATCHES "^MBEDTLS$" AND NOT MBEDTLS_FOUND)
 836         SET(ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION} FALSE)
 837       ELSEIF("${IMPLEMENTATION}" MATCHES "^NETTLE$" AND NOT NETTLE_FOUND)
 838         SET(ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION} FALSE)
 839       ENDIF("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND NOT OPENSSL_FOUND)
 840
 841       IF(NOT DEFINED ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 842         # Probe the local implementation for whether this
 843         # crypto implementation is available on this platform.
 844         SET(TRY_CRYPTO_REQUIRED_INCLUDES
 845           "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_BINARY_DIR};${CMAKE_CURRENT_SOURCE_DIR}/libarchive;${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp")
 846         SET(TRY_CRYPTO_REQUIRED_LIBS)
 847         IF ("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND OPENSSL_FOUND)
 848             SET(TRY_CRYPTO_REQUIRED_INCLUDES
 849               "${TRY_CRYPTO_REQUIRED_INCLUDES};${OPENSSL_INCLUDE_DIR}")
 850             SET(TRY_CRYPTO_REQUIRED_LIBS
 851                 "-DLINK_LIBRARIES:STRING=${OPENSSL_LIBRARIES}")
 852         ELSEIF("${IMPLEMENTATION}" MATCHES "^MBEDTLS$" AND MBEDTLS_FOUND)
 853             SET(TRY_CRYPTO_REQUIRED_INCLUDES
 854               "${TRY_CRYPTO_REQUIRED_INCLUDES};${MBEDTLS_INCLUDE_DIRS}")
 855             SET(TRY_CRYPTO_REQUIRED_LIBS
 856               "-DLINK_LIBRARIES:STRING=${MBEDCRYPTO_LIBRARY}")
 857         ELSEIF("${IMPLEMENTATION}" MATCHES "^NETTLE$" AND NETTLE_FOUND)
 858             SET(TRY_CRYPTO_REQUIRED_INCLUDES
 859               "${TRY_CRYPTO_REQUIRED_INCLUDES};${NETTLE_INCLUDE_DIR}")
 860             SET(TRY_CRYPTO_REQUIRED_LIBS
 861                 "-DLINK_LIBRARIES:STRING=${NETTLE_LIBRARY}")
 862         ELSEIF("${IMPLEMENTATION}" MATCHES "^LIBMD$" AND LIBMD_FOUND)
 863             SET(TRY_CRYPTO_REQUIRED_LIBS
 864                 "-DLINK_LIBRARIES:STRING=${LIBMD_LIBRARY}")
 865         ENDIF("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND OPENSSL_FOUND)
 866
 867     CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/build/cmake/config.h.in
 868       ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/confdefs.h)
 869         FILE(READ "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/confdefs.h"
 870              CONFDEFS_H)
 871         FILE(READ "${CMAKE_CURRENT_SOURCE_DIR}/libarchive/archive_digest.c"
 872              ARCHIVE_CRYPTO_C)
 873
 874         SET(SOURCE "${CONFDEFS_H}
 875
 876 #define ARCHIVE_${algorithm}_COMPILE_TEST
 877 #define ARCHIVE_CRYPTO_${algorithm}_${IMPLEMENTATION}
 878 #define PLATFORM_CONFIG_H \"check_crypto_md.h\"
 879
 880 ${ARCHIVE_CRYPTO_C}
 881
 882 int
 883 main(int argc, char **argv)
 884 {
 885   archive_${lower_algorithm}_ctx ctx;
 886   archive_${lower_algorithm}_init(&ctx);
 887   archive_${lower_algorithm}_update(&ctx, *argv, argc);
 888   archive_${lower_algorithm}_final(&ctx, NULL);
 889   return 0;
 890 }
 891 ")
 892
 893   FILE(WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/check_crypto_md.h" "")
 894         FILE(WRITE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/check_crypto_md.c" "${SOURCE}")
 895         MESSAGE(STATUS "Checking support for ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION}")
 896
 897         TRY_COMPILE(ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION}
 898           ${CMAKE_BINARY_DIR}
 899           ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/check_crypto_md.c
 900           CMAKE_FLAGS
 901            "${TRY_CRYPTO_REQUIRED_LIBS}"
 902            "${TRY_CRYPTO_REQUIRED_INCLUDES}"
 903           OUTPUT_VARIABLE OUTPUT)
 904
 905         # Inform user whether or not we found it; if not, log why we didn't.
 906         IF (ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 907           MESSAGE(STATUS "Checking support for ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION} -- found")
 908                   SET(ARCHIVE_CRYPTO_${ALGORITHM} 1)
 909         ELSE (ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 910           MESSAGE(STATUS "Checking support for ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION} -- not found")
 911           FILE(APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
 912             "Checking support for ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION} failed with the following output:\n"
 913             "${OUTPUT}\n"
 914             "Source file was:\n${SOURCE}\n")
 915         ENDIF (ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 916       ENDIF(NOT DEFINED ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 917
 918       # Add appropriate libs/includes depending on whether the implementation
 919       # was found on this platform.
 920       IF (ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 921         IF ("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND OPENSSL_FOUND)
 922           INCLUDE_DIRECTORIES(${OPENSSL_INCLUDE_DIR})
 923           LIST(APPEND ADDITIONAL_LIBS ${OPENSSL_LIBRARIES})
 924            LIST(REMOVE_DUPLICATES ADDITIONAL_LIBS)
 925         ENDIF ("${IMPLEMENTATION}" MATCHES "^OPENSSL$" AND OPENSSL_FOUND)
 926       ENDIF (ARCHIVE_CRYPTO_${ALGORITHM}_${IMPLEMENTATION})
 927       ENDIF(NOT ARCHIVE_CRYPTO_${ALGORITHM})
 928     ENDFOREACH(ALGORITHM ${ALGORITHMS})
 929 ENDMACRO(CHECK_CRYPTO ALGORITHMS IMPLEMENTATION)
 930
 931 #
 932 # CRYPTO functions on Windows is defined at archive_windows.c, thus we do not
 933 # need the test what the functions can be mapped to archive_{crypto name}_init,
 934 # archive_{crypto name}_update and archive_{crypto name}_final.
 935 # The functions on Windows use CALG_{crypto name} macro to create a crypt object
 936 # and then we need to know what CALG_{crypto name} macros is available to show
 937 # ARCHIVE_CRYPTO_{crypto name}_WIN macros because Windows 2000 and earlier version
 938 # of Windows XP do not support SHA256, SHA384 and SHA512.
 939 #
 940 MACRO(CHECK_CRYPTO_WIN CRYPTO_LIST)
 941   IF(WIN32 AND NOT CYGWIN)
 942     FOREACH(CRYPTO ${CRYPTO_LIST})
 943       IF(NOT ARCHIVE_CRYPTO_${CRYPTO})
 944       IF(NOT DEFINED ARCHIVE_CRYPTO_${CRYPTO}_WIN)
 945         STRING(TOUPPER "${CRYPTO}" crypto)
 946         SET(ALGID "")
 947         IF ("${CRYPTO}" MATCHES "^MD5$")
 948             SET(ALGID "CALG_MD5")
 949         ENDIF ("${CRYPTO}" MATCHES "^MD5$")
 950         IF ("${CRYPTO}" MATCHES "^SHA1$")
 951             SET(ALGID "CALG_SHA1")
 952         ENDIF ("${CRYPTO}" MATCHES "^SHA1$")
 953         IF ("${CRYPTO}" MATCHES "^SHA256$")
 954             SET(ALGID "CALG_SHA_256")
 955         ENDIF ("${CRYPTO}" MATCHES "^SHA256$")
 956         IF ("${CRYPTO}" MATCHES "^SHA384$")
 957             SET(ALGID "CALG_SHA_384")
 958         ENDIF ("${CRYPTO}" MATCHES "^SHA384$")
 959         IF ("${CRYPTO}" MATCHES "^SHA512$")
 960             SET(ALGID "CALG_SHA_512")
 961         ENDIF ("${CRYPTO}" MATCHES "^SHA512$")
 962
 963     CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/build/cmake/config.h.in
 964       ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/confdefs.h)
 965         FILE(READ "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/confdefs.h"
 966              CONFDEFS_H)
 967
 968         SET(SOURCE "${CONFDEFS_H}
 969
 970 #define ${crypto}_COMPILE_TEST
 971 #include <windows.h>
 972 #include <wincrypt.h>
 973
 974 int
 975 main(int argc, char **argv)
 976 {
 977         return ${ALGID};
 978 }
 979 ")
 980         SET(SOURCE_FILE "${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeTmp/check_crypto_win.c")
 981
 982         FILE(WRITE "${SOURCE_FILE}" "${SOURCE}")
 983         MESSAGE(STATUS "Checking support for ARCHIVE_CRYPTO_${CRYPTO}_WIN")
 984
 985         TRY_COMPILE(ARCHIVE_CRYPTO_${CRYPTO}_WIN
 986           ${CMAKE_BINARY_DIR}
 987           ${SOURCE_FILE}
 988           CMAKE_FLAGS "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_BINARY_DIR};${CMAKE_CURRENT_SOURCE_DIR}/libarchive"
 989           OUTPUT_VARIABLE OUTPUT)
 990
 991         IF (ARCHIVE_CRYPTO_${CRYPTO}_WIN)
 992             MESSAGE(STATUS
 993                 "Checking support for ARCHIVE_CRYPTO_${CRYPTO}_WIN -- found")
 994                 SET(ARCHIVE_CRYPTO_${CRYPTO} 1)
 995         ELSE (ARCHIVE_CRYPTO_${CRYPTO}_WIN)
 996             MESSAGE(STATUS
 997                  "Checking support for ARCHIVE_CRYPTO_${CRYPTO}_WIN -- not found")
 998             FILE(APPEND
 999                 ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
1000                 "Checking support for ARCHIVE_CRYPTO_${CRYPTO}_WIN failed with the following output:\n"
1001                 "${OUTPUT}\n"
1002                 "Source file was:\n${SOURCE}\n")
1003         ENDIF (ARCHIVE_CRYPTO_${CRYPTO}_WIN)
1004
1005       ENDIF(NOT DEFINED ARCHIVE_CRYPTO_${CRYPTO}_WIN)
1006       ENDIF(NOT ARCHIVE_CRYPTO_${CRYPTO})
1007     ENDFOREACH(CRYPTO)
1008   ENDIF(WIN32 AND NOT CYGWIN)
1009 ENDMACRO(CHECK_CRYPTO_WIN CRYPTO_LIST)
1010
1011 #
1012 # Find iconv
1013 # POSIX defines the second arg as const char **
1014 # and requires it to be in libc.  But we can accept
1015 # a non-const argument here and can support iconv()
1016 # being in libiconv.
1017 #
1018 MACRO(CHECK_ICONV LIB TRY_ICONV_CONST)
1019   IF(NOT HAVE_ICONV)
1020     CMAKE_PUSH_CHECK_STATE()    # Save the state of the variables
1021     IF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
1022         CMAKE_C_COMPILER_ID MATCHES "^Clang$")
1023       #
1024       # During checking iconv proto type, we should use -Werror to avoid the
1025       # success of iconv detection with a warning which success is a miss
1026       # detection. So this needs for all build mode(even it's a release mode).
1027       #
1028       SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -Werror")
1029     ENDIF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
1030            CMAKE_C_COMPILER_ID MATCHES "^Clang$")
1031     IF (CMAKE_C_COMPILER_ID MATCHES "^XL$")
1032       SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -qhalt=w -qflag=w:w")
1033     ENDIF (CMAKE_C_COMPILER_ID MATCHES "^XL$")
1034     IF (MSVC)
1035       # NOTE: /WX option is the same as gcc's -Werror option.
1036       SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} /WX")
1037     ENDIF (MSVC)
1038     #
1039     CHECK_C_SOURCE_COMPILES(
1040       "#include <stdlib.h>
1041        #include <iconv.h>
1042        int main() {
1043           ${TRY_ICONV_CONST} char *ccp;
1044           iconv_t cd = iconv_open(\"\", \"\");
1045           iconv(cd, &ccp, (size_t *)0, (char **)0, (size_t *)0);
1046           iconv_close(cd);
1047           return 0;
1048        }"
1049      HAVE_ICONV_${LIB}_${TRY_ICONV_CONST})
1050     IF(HAVE_ICONV_${LIB}_${TRY_ICONV_CONST})
1051       SET(HAVE_ICONV true)
1052       SET(ICONV_CONST ${TRY_ICONV_CONST})
1053     ENDIF(HAVE_ICONV_${LIB}_${TRY_ICONV_CONST})
1054     CMAKE_POP_CHECK_STATE()     # Restore the state of the variables
1055   ENDIF(NOT HAVE_ICONV)
1056 ENDMACRO(CHECK_ICONV TRY_ICONV_CONST)
1057
1058 IF(ENABLE_ICONV)
1059   CMAKE_PUSH_CHECK_STATE()      # Save the state of the variables
1060   FIND_PATH(ICONV_INCLUDE_DIR iconv.h)
1061   IF(ICONV_INCLUDE_DIR)
1062     #SET(INCLUDES ${INCLUDES} "iconv.h")
1063     SET(HAVE_ICONV_H 1)
1064     INCLUDE_DIRECTORIES(${ICONV_INCLUDE_DIR})
1065     SET(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
1066     CHECK_ICONV("libc" "const")
1067     CHECK_ICONV("libc" "")
1068
1069     # If iconv isn't in libc and we have a libiconv, try that.
1070     FIND_LIBRARY(LIBICONV_PATH NAMES iconv libiconv)
1071     IF(NOT HAVE_ICONV AND LIBICONV_PATH)
1072       LIST(APPEND CMAKE_REQUIRED_LIBRARIES ${LIBICONV_PATH})
1073       # Test if a macro is needed for the library.
1074       TRY_MACRO_FOR_LIBRARY(
1075         "${ICONV_INCLUDE_DIR}" "${LIBICONV_PATH}"
1076         COMPILES
1077         "#include <iconv.h>\nint main() {return iconv_close((iconv_t)0);}"
1078         "WITHOUT_LIBICONV_STATIC;LIBICONV_STATIC")
1079       IF(NOT WITHOUT_LIBICONV_STATIC AND LIBICONV_STATIC)
1080         ADD_DEFINITIONS(-DLIBICONV_STATIC)
1081       ENDIF(NOT WITHOUT_LIBICONV_STATIC AND LIBICONV_STATIC)
1082       #
1083       # Set up CMAKE_REQUIRED_* for CHECK_ICONV
1084       #
1085       SET(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
1086       SET(CMAKE_REQUIRED_LIBRARIES ${LIBICONV_PATH})
1087       IF(LIBICONV_STATIC)
1088         # LIBICONV_STATIC is necessary for the success of CHECK_ICONV
1089         # on Windows.
1090         SET(CMAKE_REQUIRED_DEFINITIONS "-DLIBICONV_STATIC")
1091       ELSE(LIBICONV_STATIC)
1092         SET(CMAKE_REQUIRED_DEFINITIONS)
1093       ENDIF(LIBICONV_STATIC)
1094       CHECK_ICONV("libiconv" "const")
1095       CHECK_ICONV("libiconv" "")
1096       IF (HAVE_ICONV)
1097         LIST(APPEND ADDITIONAL_LIBS ${LIBICONV_PATH})
1098       ENDIF(HAVE_ICONV)
1099     ENDIF(NOT HAVE_ICONV AND LIBICONV_PATH)
1100   ENDIF(ICONV_INCLUDE_DIR)
1101   #
1102   # Find locale_charset() for libiconv.
1103   #
1104   IF(LIBICONV_PATH)
1105     SET(CMAKE_REQUIRED_DEFINITIONS)
1106     SET(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
1107     SET(CMAKE_REQUIRED_LIBRARIES)
1108     CHECK_INCLUDE_FILES("localcharset.h" HAVE_LOCALCHARSET_H)
1109     FIND_LIBRARY(LIBCHARSET_PATH NAMES charset libcharset)
1110     IF(LIBCHARSET_PATH)
1111       SET(CMAKE_REQUIRED_LIBRARIES ${LIBCHARSET_PATH})
1112       IF(WIN32 AND NOT CYGWIN)
1113         # Test if a macro is needed for the library.
1114         TRY_MACRO_FOR_LIBRARY(
1115           "${ICONV_INCLUDE_DIR}" "${LIBCHARSET_PATH}"
1116           COMPILES
1117           "#include <localcharset.h>\nint main() {return locale_charset()?1:0;}"
1118           "WITHOUT_LIBCHARSET_STATIC;LIBCHARSET_STATIC")
1119         IF(NOT WITHOUT_LIBCHARSET_STATIC AND LIBCHARSET_STATIC)
1120           ADD_DEFINITIONS(-DLIBCHARSET_STATIC)
1121         ENDIF(NOT WITHOUT_LIBCHARSET_STATIC AND LIBCHARSET_STATIC)
1122         IF(WITHOUT_LIBCHARSET_STATIC OR LIBCHARSET_STATIC)
1123           SET(HAVE_LOCALE_CHARSET ON CACHE INTERNAL
1124               "Have function locale_charset")
1125         ENDIF(WITHOUT_LIBCHARSET_STATIC OR LIBCHARSET_STATIC)
1126       ELSE(WIN32 AND NOT CYGWIN)
1127         CHECK_FUNCTION_EXISTS_GLIBC(locale_charset HAVE_LOCALE_CHARSET)
1128       ENDIF(WIN32 AND NOT CYGWIN)
1129       IF(HAVE_LOCALE_CHARSET)
1130         LIST(APPEND ADDITIONAL_LIBS ${LIBCHARSET_PATH})
1131       ENDIF(HAVE_LOCALE_CHARSET)
1132     ENDIF(LIBCHARSET_PATH)
1133   ENDIF(LIBICONV_PATH)
1134   CMAKE_POP_CHECK_STATE()       # Restore the state of the variables
1135 ELSE(ENABLE_ICONV)
1136   # Make sure ICONV variables are not in CACHE after ENABLE_ICONV disabled
1137   # (once enabled).
1138   UNSET(HAVE_LOCALE_CHARSET CACHE)
1139   UNSET(HAVE_ICONV CACHE)
1140   UNSET(HAVE_ICONV_libc_ CACHE)
1141   UNSET(HAVE_ICONV_libc_const CACHE)
1142   UNSET(HAVE_ICONV_libiconv_ CACHE)
1143   UNSET(HAVE_ICONV_libiconv_const CACHE)
1144   UNSET(ICONV_INCLUDE_DIR CACHE)
1145   UNSET(LIBICONV_PATH CACHE)
1146   UNSET(LIBICONV_DLL CACHE)
1147   UNSET(LIBICONV_STATIC CACHE)
1148   UNSET(LIBCHARSET_DLL CACHE)
1149   UNSET(LIBCHARSET_STATIC CACHE)
1150 ENDIF(ENABLE_ICONV)
1151
1152 #
1153 # Find Libxml2
1154 #
1155 IF(ENABLE_LIBXML2)
1156   FIND_PACKAGE(LibXml2)
1157 ELSE()
1158   SET(LIBXML2_FOUND FALSE)
1159 ENDIF()
1160 IF(LIBXML2_FOUND)
1161   CMAKE_PUSH_CHECK_STATE()      # Save the state of the variables
1162   INCLUDE_DIRECTORIES(${LIBXML2_INCLUDE_DIR})
1163   LIST(APPEND ADDITIONAL_LIBS ${LIBXML2_LIBRARIES})
1164   SET(HAVE_LIBXML2 1)
1165   # libxml2's include files use iconv.h
1166   SET(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR} ${LIBXML2_INCLUDE_DIR})
1167   CHECK_INCLUDE_FILES("libxml/xmlreader.h" HAVE_LIBXML_XMLREADER_H)
1168   CHECK_INCLUDE_FILES("libxml/xmlwriter.h" HAVE_LIBXML_XMLWRITER_H)
1169   # Test if a macro is needed for the library.
1170   TRY_MACRO_FOR_LIBRARY(
1171     "${ICONV_INCLUDE_DIR};${LIBXML2_INCLUDE_DIR}"
1172     "ws2_32.lib;${ZLIB_LIBRARIES};${LIBICONV_PATH};${LIBXML2_LIBRARIES}"
1173     COMPILES
1174     "#include <stddef.h>\n#include <libxml/xmlreader.h>\nint main() {return xmlTextReaderRead((xmlTextReaderPtr)(void *)0);}"
1175     "WITHOUT_LIBXML_STATIC;LIBXML_STATIC")
1176   IF(NOT WITHOUT_LIBXML_STATIC AND LIBXML_STATIC)
1177     ADD_DEFINITIONS(-DLIBXML_STATIC)
1178   ENDIF(NOT WITHOUT_LIBXML_STATIC AND LIBXML_STATIC)
1179   CMAKE_POP_CHECK_STATE()       # Restore the state of the variables
1180 ELSE(LIBXML2_FOUND)
1181   #
1182   # Find Expat
1183   #
1184   IF(ENABLE_EXPAT)
1185     FIND_PACKAGE(EXPAT)
1186   ELSE()
1187     SET(EXPAT_FOUND FALSE)
1188   ENDIF()
1189   IF(EXPAT_FOUND)
1190     CMAKE_PUSH_CHECK_STATE()    # Save the state of the variables
1191     INCLUDE_DIRECTORIES(${EXPAT_INCLUDE_DIR})
1192     LIST(APPEND ADDITIONAL_LIBS ${EXPAT_LIBRARIES})
1193     SET(HAVE_LIBEXPAT 1)
1194     LA_CHECK_INCLUDE_FILE("expat.h" HAVE_EXPAT_H)
1195     CMAKE_POP_CHECK_STATE()     # Restore the state of the variables
1196   ENDIF(EXPAT_FOUND)
1197 ENDIF(LIBXML2_FOUND)
1198 MARK_AS_ADVANCED(CLEAR LIBXML2_INCLUDE_DIR)
1199 MARK_AS_ADVANCED(CLEAR LIBXML2_LIBRARIES)
1200
1201 #
1202 # POSIX Regular Expression support
1203 #
1204 IF(POSIX_REGEX_LIB MATCHES "^(AUTO|LIBC|LIBREGEX)$")
1205   #
1206   # If PCREPOSIX is not found or not requested, try using regex
1207   # from libc or libregex
1208   #
1209   FIND_PATH(REGEX_INCLUDE_DIR regex.h)
1210   IF(REGEX_INCLUDE_DIR)
1211     CHECK_FUNCTION_EXISTS_GLIBC(regcomp HAVE_REGCOMP_LIBC)
1212     #
1213     # If libc does not provide regex, find libregex.
1214     #
1215     IF(NOT HAVE_REGCOMP_LIBC)
1216       CMAKE_PUSH_CHECK_STATE()  # Save the state of the variables
1217       FIND_LIBRARY(REGEX_LIBRARY regex)
1218       IF(REGEX_LIBRARY)
1219         SET(CMAKE_REQUIRED_LIBRARIES ${REGEX_LIBRARY})
1220         CHECK_FUNCTION_EXISTS_GLIBC(regcomp HAVE_REGCOMP_LIBREGEX)
1221         IF(HAVE_REGCOMP_LIBREGEX)
1222           LIST(APPEND ADDITIONAL_LIBS ${REGEX_LIBRARY})
1223           #
1224           # If regex.h is not found, retry looking for regex.h at
1225           # REGEX_INCLUDE_DIR
1226           #
1227           IF(NOT HAVE_REGEX_H)
1228             UNSET(HAVE_REGEX_H CACHE)
1229             INCLUDE_DIRECTORIES(${REGEX_INCLUDE_DIR})
1230             SET(CMAKE_REQUIRED_INCLUDES ${REGEX_INCLUDE_DIR})
1231             LA_CHECK_INCLUDE_FILE("regex.h" HAVE_REGEX_H)
1232           ENDIF(NOT HAVE_REGEX_H)
1233           # Test if a macro is needed for the library.
1234           TRY_MACRO_FOR_LIBRARY(
1235             "${REGEX_INCLUDE_DIR}" "${REGEX_LIBRARY}"
1236             COMPILES
1237             "#include <stddef.h>\n#include <regex.h>\nint main() {regex_t r;return regcomp(&r, \"\", 0);}"
1238             "USE_REGEX_DLL;USE_REGEX_STATIC")
1239           IF(USE_REGEX_DLL)
1240             ADD_DEFINITIONS(-DUSE_REGEX_DLL)
1241           ELSEIF(USE_REGEX_STATIC)
1242             ADD_DEFINITIONS(-DUSE_REGEX_STATIC)
1243           ENDIF(USE_REGEX_DLL)
1244         ENDIF(HAVE_REGCOMP_LIBREGEX)
1245       ENDIF(REGEX_LIBRARY)
1246       CMAKE_POP_CHECK_STATE()   # Restore the state of the variables
1247     ENDIF(NOT HAVE_REGCOMP_LIBC)
1248   ENDIF(REGEX_INCLUDE_DIR)
1249   IF(HAVE_REGCOMP_LIBC OR HAVE_REGCOMP_LIBREGEX)
1250     SET(FOUND_POSIX_REGEX_LIB 1)
1251   ENDIF(HAVE_REGCOMP_LIBC OR HAVE_REGCOMP_LIBREGEX)
1252 ENDIF(POSIX_REGEX_LIB MATCHES "^(AUTO|LIBC|LIBREGEX)$")
1253
1254 IF(NOT FOUND_POSIX_REGEX_LIB AND POSIX_REGEX_LIB MATCHES "^(AUTO|LIBPCREPOSIX)$")
1255   #
1256   # If requested, try finding library for PCREPOSIX
1257   #
1258   IF(ENABLE_LibGCC)
1259     FIND_PACKAGE(LibGCC)
1260   ELSE()
1261     SET(LIBGCC_FOUND FALSE) # Override cached value
1262   ENDIF()
1263   IF(ENABLE_PCREPOSIX)
1264     FIND_PACKAGE(PCREPOSIX)
1265   ELSE()
1266     SET(PCREPOSIX_FOUND FALSE) # Override cached value
1267   ENDIF()
1268   IF(PCREPOSIX_FOUND)
1269     INCLUDE_DIRECTORIES(${PCRE_INCLUDE_DIR})
1270     LIST(APPEND ADDITIONAL_LIBS ${PCREPOSIX_LIBRARIES})
1271     # Test if a macro is needed for the library.
1272     TRY_MACRO_FOR_LIBRARY(
1273       "${PCRE_INCLUDE_DIR}" "${PCREPOSIX_LIBRARIES}"
1274       COMPILES
1275       "#include <pcreposix.h>\nint main() {regex_t r;return regcomp(&r, \"\", 0);}"
1276       "WITHOUT_PCRE_STATIC;PCRE_STATIC")
1277     IF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1278       ADD_DEFINITIONS(-DPCRE_STATIC)
1279         ELSEIF(NOT WITHOUT_PCRE_STATIC AND NOT PCRE_STATIC AND PCRE_FOUND)
1280           # Determine if pcre static libraries are to be used.
1281       LIST(APPEND ADDITIONAL_LIBS ${PCRE_LIBRARIES})
1282       SET(TMP_LIBRARIES ${PCREPOSIX_LIBRARIES} ${PCRE_LIBRARIES})
1283       MESSAGE(STATUS "trying again with -lpcre included")
1284       TRY_MACRO_FOR_LIBRARY(
1285         "${PCRE_INCLUDE_DIR}" "${TMP_LIBRARIES}"
1286         COMPILES
1287         "#include <pcreposix.h>\nint main() {regex_t r;return regcomp(&r, \"\", 0);}"
1288         "WITHOUT_PCRE_STATIC;PCRE_STATIC")
1289       IF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1290         ADD_DEFINITIONS(-DPCRE_STATIC)
1291       ELSEIF(NOT WITHOUT_PCRE_STATIC AND NOT PCRE_STATIC AND MSVC AND LIBGCC_FOUND)
1292         # When doing a Visual Studio build using pcre static libraries
1293         # built using the mingw toolchain, -lgcc is needed to resolve
1294         # ___chkstk_ms.
1295         MESSAGE(STATUS "Visual Studio build detected, trying again with -lgcc included")
1296         LIST(APPEND ADDITIONAL_LIBS ${LIBGCC_LIBRARIES})
1297         SET(TMP_LIBRARIES ${PCREPOSIX_LIBRARIES} ${PCRE_LIBRARIES} ${LIBGCC_LIBRARIES})
1298           TRY_MACRO_FOR_LIBRARY(
1299             "${PCRE_INCLUDE_DIR}" "${TMP_LIBRARIES}"
1300             COMPILES
1301             "#include <pcreposix.h>\nint main() {regex_t r;return regcomp(&r, \"\", 0);}"
1302             "WITHOUT_PCRE_STATIC;PCRE_STATIC")
1303           IF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1304             ADD_DEFINITIONS(-DPCRE_STATIC)
1305           ENDIF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1306       ENDIF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1307     ENDIF(NOT WITHOUT_PCRE_STATIC AND PCRE_STATIC)
1308   ENDIF(PCREPOSIX_FOUND)
1309   MARK_AS_ADVANCED(CLEAR PCRE_INCLUDE_DIR)
1310   MARK_AS_ADVANCED(CLEAR PCREPOSIX_LIBRARIES)
1311   MARK_AS_ADVANCED(CLEAR PCRE_LIBRARIES)
1312   MARK_AS_ADVANCED(CLEAR LIBGCC_LIBRARIES)
1313 ENDIF(NOT FOUND_POSIX_REGEX_LIB AND POSIX_REGEX_LIB MATCHES "^(AUTO|LIBPCREPOSIX)$")
1314
1315 #
1316 # Check functions
1317 #
1318 CMAKE_PUSH_CHECK_STATE()        # Save the state of the variables
1319 IF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
1320     CMAKE_C_COMPILER_ID MATCHES "^Clang$")
1321   #
1322   # During checking functions, we should use -fno-builtin to avoid the
1323   # failure of function detection which failure is an error "conflicting
1324   # types for built-in function" caused by using -Werror option.
1325   #
1326   SET(CMAKE_REQUIRED_FLAGS "${CMAKE_REQUIRED_FLAGS} -fno-builtin")
1327 ENDIF (CMAKE_C_COMPILER_ID MATCHES "^GNU$" OR
1328        CMAKE_C_COMPILER_ID MATCHES "^Clang$")
1329 CHECK_SYMBOL_EXISTS(_CrtSetReportMode "crtdbg.h" HAVE__CrtSetReportMode)
1330 CHECK_FUNCTION_EXISTS_GLIBC(arc4random_buf HAVE_ARC4RANDOM_BUF)
1331 CHECK_FUNCTION_EXISTS_GLIBC(chflags HAVE_CHFLAGS)
1332 CHECK_FUNCTION_EXISTS_GLIBC(chown HAVE_CHOWN)
1333 CHECK_FUNCTION_EXISTS_GLIBC(chroot HAVE_CHROOT)
1334 CHECK_FUNCTION_EXISTS_GLIBC(ctime_r HAVE_CTIME_R)
1335 CHECK_FUNCTION_EXISTS_GLIBC(fchdir HAVE_FCHDIR)
1336 CHECK_FUNCTION_EXISTS_GLIBC(fchflags HAVE_FCHFLAGS)
1337 CHECK_FUNCTION_EXISTS_GLIBC(fchmod HAVE_FCHMOD)
1338 CHECK_FUNCTION_EXISTS_GLIBC(fchown HAVE_FCHOWN)
1339 CHECK_FUNCTION_EXISTS_GLIBC(fcntl HAVE_FCNTL)
1340 CHECK_FUNCTION_EXISTS_GLIBC(fdopendir HAVE_FDOPENDIR)
1341 CHECK_FUNCTION_EXISTS_GLIBC(fork HAVE_FORK)
1342 CHECK_FUNCTION_EXISTS_GLIBC(fstat HAVE_FSTAT)
1343 CHECK_FUNCTION_EXISTS_GLIBC(fstatat HAVE_FSTATAT)
1344 CHECK_FUNCTION_EXISTS_GLIBC(fstatfs HAVE_FSTATFS)
1345 CHECK_FUNCTION_EXISTS_GLIBC(fstatvfs HAVE_FSTATVFS)
1346 CHECK_FUNCTION_EXISTS_GLIBC(ftruncate HAVE_FTRUNCATE)
1347 CHECK_FUNCTION_EXISTS_GLIBC(futimens HAVE_FUTIMENS)
1348 CHECK_FUNCTION_EXISTS_GLIBC(futimes HAVE_FUTIMES)
1349 CHECK_FUNCTION_EXISTS_GLIBC(futimesat HAVE_FUTIMESAT)
1350 CHECK_FUNCTION_EXISTS_GLIBC(geteuid HAVE_GETEUID)
1351 CHECK_FUNCTION_EXISTS_GLIBC(getgrgid_r HAVE_GETGRGID_R)
1352 CHECK_FUNCTION_EXISTS_GLIBC(getgrnam_r HAVE_GETGRNAM_R)
1353 CHECK_FUNCTION_EXISTS_GLIBC(getpwnam_r HAVE_GETPWNAM_R)
1354 CHECK_FUNCTION_EXISTS_GLIBC(getpwuid_r HAVE_GETPWUID_R)
1355 CHECK_FUNCTION_EXISTS_GLIBC(getpid HAVE_GETPID)
1356 CHECK_FUNCTION_EXISTS_GLIBC(getvfsbyname HAVE_GETVFSBYNAME)
1357 CHECK_FUNCTION_EXISTS_GLIBC(gmtime_r HAVE_GMTIME_R)
1358 CHECK_FUNCTION_EXISTS_GLIBC(lchflags HAVE_LCHFLAGS)
1359 CHECK_FUNCTION_EXISTS_GLIBC(lchmod HAVE_LCHMOD)
1360 CHECK_FUNCTION_EXISTS_GLIBC(lchown HAVE_LCHOWN)
1361 CHECK_FUNCTION_EXISTS_GLIBC(link HAVE_LINK)
1362 CHECK_FUNCTION_EXISTS_GLIBC(linkat HAVE_LINKAT)
1363 CHECK_FUNCTION_EXISTS_GLIBC(localtime_r HAVE_LOCALTIME_R)
1364 CHECK_FUNCTION_EXISTS_GLIBC(lstat HAVE_LSTAT)
1365 CHECK_FUNCTION_EXISTS_GLIBC(lutimes HAVE_LUTIMES)
1366 CHECK_FUNCTION_EXISTS_GLIBC(mbrtowc HAVE_MBRTOWC)
1367 CHECK_FUNCTION_EXISTS_GLIBC(memmove HAVE_MEMMOVE)
1368 CHECK_FUNCTION_EXISTS_GLIBC(mkdir HAVE_MKDIR)
1369 CHECK_FUNCTION_EXISTS_GLIBC(mkfifo HAVE_MKFIFO)
1370 CHECK_FUNCTION_EXISTS_GLIBC(mknod HAVE_MKNOD)
1371 CHECK_FUNCTION_EXISTS_GLIBC(mkstemp HAVE_MKSTEMP)
1372 CHECK_FUNCTION_EXISTS_GLIBC(nl_langinfo HAVE_NL_LANGINFO)
1373 CHECK_FUNCTION_EXISTS_GLIBC(openat HAVE_OPENAT)
1374 CHECK_FUNCTION_EXISTS_GLIBC(pipe HAVE_PIPE)
1375 CHECK_FUNCTION_EXISTS_GLIBC(poll HAVE_POLL)
1376 CHECK_FUNCTION_EXISTS_GLIBC(posix_spawnp HAVE_POSIX_SPAWNP)
1377 CHECK_FUNCTION_EXISTS_GLIBC(readlink HAVE_READLINK)
1378 CHECK_FUNCTION_EXISTS_GLIBC(readpassphrase HAVE_READPASSPHRASE)
1379 CHECK_FUNCTION_EXISTS_GLIBC(select HAVE_SELECT)
1380 CHECK_FUNCTION_EXISTS_GLIBC(setenv HAVE_SETENV)
1381 CHECK_FUNCTION_EXISTS_GLIBC(setlocale HAVE_SETLOCALE)
1382 CHECK_FUNCTION_EXISTS_GLIBC(sigaction HAVE_SIGACTION)
1383 CHECK_FUNCTION_EXISTS_GLIBC(statfs HAVE_STATFS)
1384 CHECK_FUNCTION_EXISTS_GLIBC(statvfs HAVE_STATVFS)
1385 CHECK_FUNCTION_EXISTS_GLIBC(strchr HAVE_STRCHR)
1386 CHECK_FUNCTION_EXISTS_GLIBC(strdup HAVE_STRDUP)
1387 CHECK_FUNCTION_EXISTS_GLIBC(strerror HAVE_STRERROR)
1388 CHECK_FUNCTION_EXISTS_GLIBC(strncpy_s HAVE_STRNCPY_S)
1389 CHECK_FUNCTION_EXISTS_GLIBC(strnlen HAVE_STRNLEN)
1390 CHECK_FUNCTION_EXISTS_GLIBC(strrchr HAVE_STRRCHR)
1391 CHECK_FUNCTION_EXISTS_GLIBC(symlink HAVE_SYMLINK)
1392 CHECK_FUNCTION_EXISTS_GLIBC(timegm HAVE_TIMEGM)
1393 CHECK_FUNCTION_EXISTS_GLIBC(tzset HAVE_TZSET)
1394 CHECK_FUNCTION_EXISTS_GLIBC(unlinkat HAVE_UNLINKAT)
1395 CHECK_FUNCTION_EXISTS_GLIBC(unsetenv HAVE_UNSETENV)
1396 CHECK_FUNCTION_EXISTS_GLIBC(utime HAVE_UTIME)
1397 CHECK_FUNCTION_EXISTS_GLIBC(utimes HAVE_UTIMES)
1398 CHECK_FUNCTION_EXISTS_GLIBC(utimensat HAVE_UTIMENSAT)
1399 CHECK_FUNCTION_EXISTS_GLIBC(vfork HAVE_VFORK)
1400 CHECK_FUNCTION_EXISTS_GLIBC(wcrtomb HAVE_WCRTOMB)
1401 CHECK_FUNCTION_EXISTS_GLIBC(wcscmp HAVE_WCSCMP)
1402 CHECK_FUNCTION_EXISTS_GLIBC(wcscpy HAVE_WCSCPY)
1403 CHECK_FUNCTION_EXISTS_GLIBC(wcslen HAVE_WCSLEN)
1404 CHECK_FUNCTION_EXISTS_GLIBC(wctomb HAVE_WCTOMB)
1405 CHECK_FUNCTION_EXISTS_GLIBC(_ctime64_s HAVE__CTIME64_S)
1406 CHECK_FUNCTION_EXISTS_GLIBC(_fseeki64 HAVE__FSEEKI64)
1407 CHECK_FUNCTION_EXISTS_GLIBC(_get_timezone HAVE__GET_TIMEZONE)
1408 CHECK_FUNCTION_EXISTS_GLIBC(_gmtime64_s HAVE__GMTIME64_S)
1409 CHECK_FUNCTION_EXISTS_GLIBC(_localtime64_s HAVE__LOCALTIME64_S)
1410 CHECK_FUNCTION_EXISTS_GLIBC(_mkgmtime64 HAVE__MKGMTIME64)
1411
1412 SET(CMAKE_REQUIRED_LIBRARIES "")
1413 CHECK_FUNCTION_EXISTS(cygwin_conv_path HAVE_CYGWIN_CONV_PATH)
1414 CHECK_FUNCTION_EXISTS(fseeko HAVE_FSEEKO)
1415 CHECK_FUNCTION_EXISTS(strerror_r HAVE_STRERROR_R)
1416 CHECK_FUNCTION_EXISTS(strftime HAVE_STRFTIME)
1417 CHECK_FUNCTION_EXISTS(vprintf HAVE_VPRINTF)
1418 CHECK_FUNCTION_EXISTS(wmemcmp HAVE_WMEMCMP)
1419 CHECK_FUNCTION_EXISTS(wmemcpy HAVE_WMEMCPY)
1420 CHECK_FUNCTION_EXISTS(wmemmove HAVE_WMEMMOVE)
1421
1422 CMAKE_POP_CHECK_STATE() # Restore the state of the variables
1423
1424 CHECK_C_SOURCE_COMPILES(
1425   "#include <sys/types.h>\n#include <sys/mount.h>\nint main(void) { struct vfsconf v; return sizeof(v);}"
1426   HAVE_STRUCT_VFSCONF)
1427
1428 CHECK_C_SOURCE_COMPILES(
1429   "#include <sys/types.h>\n#include <sys/mount.h>\nint main(void) { struct xvfsconf v; return sizeof(v);}"
1430   HAVE_STRUCT_XVFSCONF)
1431
1432 CHECK_C_SOURCE_COMPILES(
1433   "#include <sys/types.h>\n#include <sys/mount.h>\nint main(void) { struct statfs s; return sizeof(s);}"
1434   HAVE_STRUCT_STATFS)
1435
1436 # Make sure we have the POSIX version of readdir_r, not the
1437 # older 2-argument version.
1438 CHECK_C_SOURCE_COMPILES(
1439   "#include <dirent.h>\nint main() {DIR *d = opendir(\".\"); struct dirent e,*r; return readdir_r(d,&e,&r);}"
1440   HAVE_READDIR_R)
1441
1442 # dirfd can be either a function or a macro.
1443 CHECK_C_SOURCE_COMPILES(
1444   "#include <dirent.h>\nint main() {DIR *d = opendir(\".\"); return dirfd(d);}"
1445   HAVE_DIRFD)
1446
1447 # Only detect readlinkat() if we also have AT_FDCWD in unistd.h.
1448 # NOTE: linux requires fcntl.h for AT_FDCWD.
1449 CHECK_C_SOURCE_COMPILES(
1450   "#include <fcntl.h>\n#include <unistd.h>\nint main() {char buf[10]; return readlinkat(AT_FDCWD, \"\", buf, 0);}"
1451   HAVE_READLINKAT)
1452
1453
1454 # To verify major(), we need to both include the header
1455 # of interest and verify that the result can be linked.
1456 # CHECK_FUNCTION_EXISTS doesn't accept a header argument,
1457 # CHECK_SYMBOL_EXISTS doesn't test linkage.
1458 CHECK_C_SOURCE_COMPILES(
1459   "#include <sys/mkdev.h>\nint main() { return major(256); }"
1460   MAJOR_IN_MKDEV)
1461 CHECK_C_SOURCE_COMPILES(
1462   "#include <sys/sysmacros.h>\nint main() { return major(256); }"
1463   MAJOR_IN_SYSMACROS)
1464
1465 IF(ENABLE_LZMA)
1466 CHECK_C_SOURCE_COMPILES(
1467   "#include <lzma.h>\n#if LZMA_VERSION < 50020000\n#error unsupported\n#endif\nint main(void){lzma_stream_encoder_mt(0, 0); return 0;}"
1468   HAVE_LZMA_STREAM_ENCODER_MT)
1469 ELSE()
1470   SET(HAVE_LZMA_STREAM_ENCODER_MT 0)
1471 ENDIF(ENABLE_LZMA)
1472
1473 IF(HAVE_STRERROR_R)
1474   SET(HAVE_DECL_STRERROR_R 1)
1475 ENDIF(HAVE_STRERROR_R)
1476
1477 #
1478 # Check defines
1479 #
1480 SET(headers "limits.h")
1481 IF(HAVE_STDINT_H)
1482   LIST(APPEND headers "stdint.h")
1483 ENDIF(HAVE_STDINT_H)
1484 IF(HAVE_INTTYPES_H)
1485   LIST(APPEND headers "inttypes.h")
1486 ENDIF(HAVE_INTTYPES_H)
1487 CHECK_SYMBOL_EXISTS(EFTYPE           "errno.h"    HAVE_EFTYPE)
1488 CHECK_SYMBOL_EXISTS(EILSEQ           "errno.h"    HAVE_EILSEQ)
1489 CHECK_SYMBOL_EXISTS(D_MD_ORDER       "langinfo.h" HAVE_D_MD_ORDER)
1490 CHECK_SYMBOL_EXISTS(INT32_MAX        "${headers}" HAVE_DECL_INT32_MAX)
1491 CHECK_SYMBOL_EXISTS(INT32_MIN        "${headers}" HAVE_DECL_INT32_MIN)
1492 CHECK_SYMBOL_EXISTS(INT64_MAX        "${headers}" HAVE_DECL_INT64_MAX)
1493 CHECK_SYMBOL_EXISTS(INT64_MIN        "${headers}" HAVE_DECL_INT64_MIN)
1494 CHECK_SYMBOL_EXISTS(INTMAX_MAX       "${headers}" HAVE_DECL_INTMAX_MAX)
1495 CHECK_SYMBOL_EXISTS(INTMAX_MIN       "${headers}" HAVE_DECL_INTMAX_MIN)
1496 CHECK_SYMBOL_EXISTS(UINT32_MAX       "${headers}" HAVE_DECL_UINT32_MAX)
1497 CHECK_SYMBOL_EXISTS(UINT64_MAX       "${headers}" HAVE_DECL_UINT64_MAX)
1498 CHECK_SYMBOL_EXISTS(UINTMAX_MAX      "${headers}" HAVE_DECL_UINTMAX_MAX)
1499 CHECK_SYMBOL_EXISTS(SIZE_MAX         "${headers}" HAVE_DECL_SIZE_MAX)
1500 CHECK_SYMBOL_EXISTS(SSIZE_MAX        "limits.h"   HAVE_DECL_SSIZE_MAX)
1501
1502 #
1503 # Check struct members
1504 #
1505 # Check for tm_gmtoff in struct tm
1506 CHECK_STRUCT_HAS_MEMBER("struct tm" tm_gmtoff
1507     "time.h" HAVE_STRUCT_TM_TM_GMTOFF)
1508 CHECK_STRUCT_HAS_MEMBER("struct tm" __tm_gmtoff
1509     "time.h" HAVE_STRUCT_TM___TM_GMTOFF)
1510
1511 IF(HAVE_STRUCT_STATFS)
1512 # Check for f_namemax in struct statfs
1513 CHECK_STRUCT_HAS_MEMBER("struct statfs" f_namemax
1514     "sys/param.h;sys/mount.h" HAVE_STRUCT_STATFS_F_NAMEMAX)
1515 # Check for f_iosize in struct statfs
1516 CHECK_STRUCT_HAS_MEMBER("struct statfs" f_iosize
1517     "sys/param.h;sys/mount.h" HAVE_STRUCT_STATFS_F_IOSIZE)
1518 ENDIF(HAVE_STRUCT_STATFS)
1519
1520 # Check for birthtime in struct stat
1521 CHECK_STRUCT_HAS_MEMBER("struct stat" st_birthtime
1522     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_BIRTHTIME)
1523
1524 # Check for high-resolution timestamps in struct stat
1525 CHECK_STRUCT_HAS_MEMBER("struct stat" st_birthtimespec.tv_nsec
1526     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_BIRTHTIMESPEC_TV_NSEC)
1527 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtimespec.tv_nsec
1528     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIMESPEC_TV_NSEC)
1529 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtim.tv_nsec
1530     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIM_TV_NSEC)
1531 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtime_n
1532     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIME_N)
1533 CHECK_STRUCT_HAS_MEMBER("struct stat" st_umtime
1534     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_UMTIME)
1535 CHECK_STRUCT_HAS_MEMBER("struct stat" st_mtime_usec
1536     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_MTIME_USEC)
1537 # Check for block size support in struct stat
1538 CHECK_STRUCT_HAS_MEMBER("struct stat" st_blksize
1539     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_BLKSIZE)
1540 # Check for st_flags in struct stat (BSD fflags)
1541 CHECK_STRUCT_HAS_MEMBER("struct stat" st_flags
1542     "sys/types.h;sys/stat.h" HAVE_STRUCT_STAT_ST_FLAGS)
1543
1544 IF(HAVE_SYS_STATVFS_H)
1545   CHECK_STRUCT_HAS_MEMBER("struct statvfs" f_iosize
1546     "sys/types.h;sys/statvfs.h" HAVE_STRUCT_STATVFS_F_IOSIZE)
1547 ENDIF()
1548
1549 #
1550 #
1551 CHECK_STRUCT_HAS_MEMBER("struct tm" tm_sec
1552     "sys/types.h;sys/time.h;time.h" TIME_WITH_SYS_TIME)
1553
1554 #
1555 # Check for integer types
1556 #
1557 #
1558 CHECK_TYPE_SIZE("short" SIZEOF_SHORT)
1559 CHECK_TYPE_SIZE("int" SIZEOF_INT)
1560 CHECK_TYPE_SIZE("long" SIZEOF_LONG)
1561 CHECK_TYPE_SIZE("long long"     SIZEOF_LONG_LONG)
1562
1563 CHECK_TYPE_SIZE("unsigned short" SIZEOF_UNSIGNED_SHORT)
1564 CHECK_TYPE_SIZE("unsigned" SIZEOF_UNSIGNED)
1565 CHECK_TYPE_SIZE("unsigned long" SIZEOF_UNSIGNED_LONG)
1566 CHECK_TYPE_SIZE("unsigned long long" SIZEOF_UNSIGNED_LONG_LONG)
1567
1568 CHECK_TYPE_SIZE("__int64" __INT64)
1569 CHECK_TYPE_SIZE("unsigned __int64" UNSIGNED___INT64)
1570
1571 CHECK_TYPE_SIZE(int16_t INT16_T)
1572 CHECK_TYPE_SIZE(int32_t INT32_T)
1573 CHECK_TYPE_SIZE(int64_t INT64_T)
1574 CHECK_TYPE_SIZE(intmax_t INTMAX_T)
1575 CHECK_TYPE_SIZE(uint8_t UINT8_T)
1576 CHECK_TYPE_SIZE(uint16_t UINT16_T)
1577 CHECK_TYPE_SIZE(uint32_t UINT32_T)
1578 CHECK_TYPE_SIZE(uint64_t UINT64_T)
1579 CHECK_TYPE_SIZE(uintmax_t UINTMAX_T)
1580
1581 CHECK_TYPE_SIZE(dev_t       DEV_T)
1582 IF(NOT HAVE_DEV_T)
1583   IF(MSVC)
1584     SET(dev_t "unsigned int")
1585   ENDIF(MSVC)
1586 ENDIF(NOT HAVE_DEV_T)
1587 #
1588 CHECK_TYPE_SIZE(gid_t       GID_T)
1589 IF(NOT HAVE_GID_T)
1590   IF(WIN32)
1591     SET(gid_t "short")
1592   ELSE(WIN32)
1593     SET(gid_t "unsigned int")
1594   ENDIF(WIN32)
1595 ENDIF(NOT HAVE_GID_T)
1596 #
1597 CHECK_TYPE_SIZE(id_t        ID_T)
1598 IF(NOT HAVE_ID_T)
1599   IF(WIN32)
1600     SET(id_t "short")
1601   ELSE(WIN32)
1602     SET(id_t "unsigned int")
1603   ENDIF(WIN32)
1604 ENDIF(NOT HAVE_ID_T)
1605 #
1606 CHECK_TYPE_SIZE(mode_t      MODE_T)
1607 IF(NOT HAVE_MODE_T)
1608   IF(WIN32)
1609     SET(mode_t "unsigned short")
1610   ELSE(WIN32)
1611     SET(mode_t "int")
1612   ENDIF(WIN32)
1613 ENDIF(NOT HAVE_MODE_T)
1614 #
1615 CHECK_TYPE_SIZE(off_t       OFF_T)
1616 IF(NOT HAVE_OFF_T)
1617   SET(off_t "__int64")
1618 ENDIF(NOT HAVE_OFF_T)
1619 #
1620 CHECK_TYPE_SIZE(size_t      SIZE_T)
1621 IF(NOT HAVE_SIZE_T)
1622   IF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1623     SET(size_t "uint64_t")
1624   ELSE("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1625     SET(size_t   "uint32_t")
1626   ENDIF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1627 ENDIF(NOT HAVE_SIZE_T)
1628 #
1629 CHECK_TYPE_SIZE(ssize_t     SSIZE_T)
1630 IF(NOT HAVE_SSIZE_T)
1631   IF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1632     SET(ssize_t "int64_t")
1633   ELSE("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1634     SET(ssize_t "long")
1635   ENDIF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1636 ENDIF(NOT HAVE_SSIZE_T)
1637 #
1638 CHECK_TYPE_SIZE(uid_t       UID_T)
1639 IF(NOT HAVE_UID_T)
1640   IF(WIN32)
1641     SET(uid_t "short")
1642   ELSE(WIN32)
1643     SET(uid_t "unsigned int")
1644   ENDIF(WIN32)
1645 ENDIF(NOT HAVE_UID_T)
1646 #
1647 CHECK_TYPE_SIZE(pid_t       PID_T)
1648 IF(NOT HAVE_PID_T)
1649   IF(WIN32)
1650     SET(pid_t "int")
1651   ELSE(WIN32)
1652     MESSAGE(FATAL_ERROR "pid_t doesn't exist on this platform?")
1653   ENDIF(WIN32)
1654 ENDIF(NOT HAVE_PID_T)
1655 #
1656 CHECK_TYPE_SIZE(intptr_t   INTPTR_T)
1657 IF(NOT HAVE_INTPTR_T)
1658   IF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1659     SET(intptr_t "int64_t")
1660   ELSE()
1661     SET(intptr_t "int32_t")
1662   ENDIF()
1663 ENDIF(NOT HAVE_INTPTR_T)
1664 #
1665 CHECK_TYPE_SIZE(uintptr_t   UINTPTR_T)
1666 IF(NOT HAVE_UINTPTR_T)
1667   IF("${CMAKE_SIZEOF_VOID_P}" EQUAL 8)
1668     SET(uintptr_t "uint64_t")
1669   ELSE()
1670     SET(uintptr_t "uint32_t")
1671   ENDIF()
1672 ENDIF(NOT HAVE_UINTPTR_T)
1673 #
1674 CHECK_TYPE_SIZE(wchar_t     SIZEOF_WCHAR_T)
1675 IF(HAVE_SIZEOF_WCHAR_T)
1676   SET(HAVE_WCHAR_T 1)
1677 ENDIF(HAVE_SIZEOF_WCHAR_T)
1678 #
1679 # Check if _FILE_OFFSET_BITS macro needed for large files
1680 #
1681 CHECK_FILE_OFFSET_BITS()
1682
1683 #
1684 # Check for Extended Attribute libraries, headers, and functions
1685 #
1686 IF(ENABLE_XATTR)
1687   CHECK_LIBRARY_EXISTS(attr "setxattr" "" HAVE_LIBATTR)
1688   IF(HAVE_LIBATTR)
1689     SET(CMAKE_REQUIRED_LIBRARIES "attr")
1690   ELSE()
1691     CHECK_LIBRARY_EXISTS(gnu "setxattr" "" HAVE_LIBATTR_GNU)
1692     IF(HAVE_LIBATTR_GNU)
1693       SET(CMAKE_REQUIRED_LIBRARIES "gnu")
1694     ENDIF()
1695   ENDIF(HAVE_LIBATTR)
1696   CHECK_SYMBOL_EXISTS(EXTATTR_NAMESPACE_USER "sys/types.h;sys/extattr.h" HAVE_DECL_EXTATTR_NAMESPACE_USER)
1697   CHECK_SYMBOL_EXISTS(XATTR_NOFOLLOW "sys/xattr.h" HAVE_DECL_XATTR_NOFOLLOW)
1698   IF(HAVE_SYS_XATTR_H AND HAVE_DECL_XATTR_NOFOLLOW)
1699     CHECK_FUNCTION_EXISTS(fgetxattr HAVE_FGETXATTR)
1700     CHECK_FUNCTION_EXISTS(flistxattr HAVE_FLISTXATTR)
1701     CHECK_FUNCTION_EXISTS(fsetxattr HAVE_FSETXATTR)
1702     CHECK_FUNCTION_EXISTS(getxattr HAVE_GETXATTR)
1703     CHECK_FUNCTION_EXISTS(listxattr HAVE_LISTXATTR)
1704     CHECK_FUNCTION_EXISTS(setxattr HAVE_SETXATTR)
1705     IF(HAVE_FGETXATTR AND
1706        HAVE_FLISTXATTR AND
1707        HAVE_FSETXATTR AND
1708        HAVE_GETXATTR AND
1709        HAVE_LISTXATTR AND
1710        HAVE_SETXATTR)
1711       SET(ARCHIVE_XATTR_DARWIN TRUE)
1712     ENDIF()
1713   ELSEIF(HAVE_SYS_EXTATTR_H AND HAVE_DECL_EXTATTR_NAMESPACE_USER)
1714     # FreeBSD xattr support
1715     CHECK_FUNCTION_EXISTS(extattr_get_fd HAVE_EXTATTR_GET_FD)
1716     CHECK_FUNCTION_EXISTS(extattr_get_file HAVE_EXTATTR_GET_FILE)
1717     CHECK_FUNCTION_EXISTS(extattr_get_link HAVE_EXTATTR_GET_LINK)
1718     CHECK_FUNCTION_EXISTS(extattr_list_fd HAVE_EXTATTR_LIST_FD)
1719     CHECK_FUNCTION_EXISTS(extattr_list_file HAVE_EXTATTR_LIST_FILE)
1720     CHECK_FUNCTION_EXISTS(extattr_list_link HAVE_EXTATTR_LIST_LINK)
1721     CHECK_FUNCTION_EXISTS(extattr_set_fd HAVE_EXTATTR_SET_FD)
1722     CHECK_FUNCTION_EXISTS(extattr_set_link HAVE_EXTATTR_SET_LINK)
1723     IF(HAVE_EXTATTR_GET_FD AND
1724        HAVE_EXTATTR_GET_FILE AND
1725        HAVE_EXTATTR_GET_LINK AND
1726        HAVE_EXTATTR_LIST_FD AND
1727        HAVE_EXTATTR_LIST_FILE AND
1728        HAVE_EXTATTR_LIST_LINK AND
1729        HAVE_EXTATTR_SET_FD AND
1730        HAVE_EXTATTR_SET_LINK)
1731       SET(ARCHIVE_XATTR_FREEBSD TRUE)
1732     ENDIF()
1733   ELSEIF(HAVE_SYS_XATTR_H OR HAVE_ATTR_XATTR_H)
1734     # Linux xattr support
1735     CHECK_FUNCTION_EXISTS_GLIBC(fgetxattr HAVE_FGETXATTR)
1736     CHECK_FUNCTION_EXISTS_GLIBC(flistxattr HAVE_FLISTXATTR)
1737     CHECK_FUNCTION_EXISTS_GLIBC(fsetxattr HAVE_FSETXATTR)
1738     CHECK_FUNCTION_EXISTS_GLIBC(getxattr HAVE_GETXATTR)
1739     CHECK_FUNCTION_EXISTS_GLIBC(lgetxattr HAVE_LGETXATTR)
1740     CHECK_FUNCTION_EXISTS_GLIBC(listxattr HAVE_LISTXATTR)
1741     CHECK_FUNCTION_EXISTS_GLIBC(llistxattr HAVE_LLISTXATTR)
1742     CHECK_FUNCTION_EXISTS_GLIBC(lsetxattr HAVE_LSETXATTR)
1743     IF(HAVE_FGETXATTR AND
1744        HAVE_FLISTXATTR AND
1745        HAVE_FSETXATTR AND
1746        HAVE_GETXATTR AND
1747        HAVE_LGETXATTR AND
1748        HAVE_LISTXATTR AND
1749        HAVE_LLISTXATTR AND
1750        HAVE_LSETXATTR)
1751       SET(ARCHIVE_XATTR_LINUX TRUE)
1752     ENDIF()
1753   ELSEIF(HAVE_SYS_EA_H)
1754     # AIX xattr support
1755     CHECK_FUNCTION_EXISTS(fgetea HAVE_FGETEA)
1756     CHECK_FUNCTION_EXISTS(flistea HAVE_FLISTEA)
1757     CHECK_FUNCTION_EXISTS(fsetea HAVE_FSETEA)
1758     CHECK_FUNCTION_EXISTS(getea HAVE_GETEA)
1759     CHECK_FUNCTION_EXISTS(lgetea HAVE_LGETEA)
1760     CHECK_FUNCTION_EXISTS(listea HAVE_LISTEA)
1761     CHECK_FUNCTION_EXISTS(llistea HAVE_LLISTEA)
1762     CHECK_FUNCTION_EXISTS(lsetea HAVE_LSETEA)
1763     IF(HAVE_FGETEA AND
1764        HAVE_FLISTEA AND
1765        HAVE_FSETEA AND
1766        HAVE_GETEA AND
1767        HAVE_LGETEA AND
1768        HAVE_LISTEA AND
1769        HAVE_LLISTEA AND
1770        HAVE_LSETEA)
1771       SET(ARCHIVE_XATTR_AIX TRUE)
1772     ENDIF()
1773   ENDIF()
1774
1775   IF(ARCHIVE_XATTR_DARWIN)
1776     MESSAGE(STATUS "Extended attributes support: Darwin")
1777   ELSEIF(ARCHIVE_XATTR_FREEBSD)
1778     MESSAGE(STATUS "Extended attributes support: FreeBSD")
1779   ELSEIF(ARCHIVE_XATTR_LINUX)
1780     MESSAGE(STATUS "Extended attributes support: Linux")
1781   ELSEIF(ARCHIVE_XATTR_AIX)
1782     MESSAGE(STATUS "Extended attributes support: AIX")
1783   ELSE()
1784     MESSAGE(STATUS "Extended attributes support: none")
1785   ENDIF()
1786 ELSE(ENABLE_XATTR)
1787   SET(ARCHIVE_XATTR_DARWIN FALSE)
1788   SET(ARCHIVE_XATTR_FREEBSD FALSE)
1789   SET(ARCHIVE_XATTR_LINUX FALSE)
1790   SET(ARCHIVE_XATTR_AIX FALSE)
1791 ENDIF(ENABLE_XATTR)
1792
1793 #
1794 # Check for ACL libraries, headers, and functions
1795 #
1796 # The ACL support in libarchive is written against the POSIX1e draft,
1797 # which was never officially approved and varies quite a bit across
1798 # platforms.  Worse, some systems have completely non-POSIX acl functions,
1799 # which makes the following checks rather more complex than I would like.
1800 #
1801 IF(ENABLE_ACL)
1802   # Solaris and derivates ACLs
1803   CHECK_FUNCTION_EXISTS(acl HAVE_ACL)
1804   CHECK_FUNCTION_EXISTS(facl HAVE_FACL)
1805
1806   # Libacl
1807   CHECK_LIBRARY_EXISTS(acl "acl_get_file" "" HAVE_LIBACL)
1808   IF(HAVE_LIBACL)
1809     SET(CMAKE_REQUIRED_LIBRARIES "acl")
1810     FIND_LIBRARY(ACL_LIBRARY NAMES acl)
1811     LIST(APPEND ADDITIONAL_LIBS ${ACL_LIBRARY})
1812   ENDIF(HAVE_LIBACL)
1813
1814   CHECK_TYPE_EXISTS(acl_t "sys/types.h;sys/acl.h" HAVE_ACL_T)
1815   CHECK_TYPE_EXISTS(acl_entry_t "sys/types.h;sys/acl.h" HAVE_ACL_ENTRY_T)
1816   CHECK_TYPE_EXISTS(acl_permset_t "sys/types.h;sys/acl.h" HAVE_ACL_PERMSET_T)
1817   CHECK_TYPE_EXISTS(acl_tag_t "sys/types.h;sys/acl.h" HAVE_ACL_TAG_T)
1818
1819   IF(HAVE_ACL AND HAVE_FACL)
1820     CHECK_TYPE_EXISTS(aclent_t "sys/acl.h" HAVE_ACLENT_T)
1821     IF(HAVE_ACLENT_T)
1822       CHECK_SYMBOL_EXISTS(GETACL "sys/acl.h" HAVE_DECL_GETACL)
1823       CHECK_SYMBOL_EXISTS(GETACLCNT "sys/acl.h" HAVE_DECL_GETACLCNT)
1824       CHECK_SYMBOL_EXISTS(SETACL "sys/acl.h" HAVE_DECL_SETACL)
1825       IF(HAVE_DECL_GETACL AND
1826          HAVE_DECL_GETACLCNT AND
1827          HAVE_DECL_SETACL)
1828         SET(ARCHIVE_ACL_SUNOS TRUE)
1829       ENDIF()
1830       CHECK_TYPE_EXISTS(ace_t "sys/acl.h" HAVE_ACE_T)
1831       IF(HAVE_ACE_T)
1832         CHECK_SYMBOL_EXISTS(ACE_GETACL "sys/acl.h" HAVE_DECL_ACE_GETACL)
1833         CHECK_SYMBOL_EXISTS(ACE_GETACLCNT "sys/acl.h" HAVE_DECL_ACE_GETACLCNT)
1834         CHECK_SYMBOL_EXISTS(ACE_SETACL "sys/acl.h" HAVE_DECL_ACE_SETACL)
1835         IF(HAVE_DECL_ACE_GETACL AND
1836            HAVE_DECL_ACE_GETACLCNT AND
1837            HAVE_DECL_ACE_SETACL)
1838           SET(ARCHIVE_ACL_SUNOS_NFS4 TRUE)
1839         ENDIF()
1840       ENDIF(HAVE_ACE_T)
1841     ENDIF(HAVE_ACLENT_T)
1842   ENDIF(HAVE_ACL AND HAVE_FACL)
1843
1844   IF(HAVE_ACL_T AND HAVE_ACL_ENTRY_T AND HAVE_ACL_PERMSET_T AND HAVE_ACL_TAG_T)
1845     CHECK_FUNCTION_EXISTS_GLIBC(acl_add_perm HAVE_ACL_ADD_PERM)
1846     CHECK_FUNCTION_EXISTS_GLIBC(acl_clear_perms HAVE_ACL_CLEAR_PERMS)
1847     CHECK_FUNCTION_EXISTS_GLIBC(acl_create_entry HAVE_ACL_CREATE_ENTRY)
1848     CHECK_FUNCTION_EXISTS_GLIBC(acl_delete_def_file HAVE_ACL_DELETE_DEF_FILE)
1849     CHECK_FUNCTION_EXISTS_GLIBC(acl_free HAVE_ACL_FREE)
1850     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_entry HAVE_ACL_GET_ENTRY)
1851     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_fd HAVE_ACL_GET_FD)
1852     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_file HAVE_ACL_GET_FILE)
1853     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_permset HAVE_ACL_GET_PERMSET)
1854     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_qualifier HAVE_ACL_GET_QUALIFIER)
1855     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_tag_type HAVE_ACL_GET_TAG_TYPE)
1856     CHECK_FUNCTION_EXISTS_GLIBC(acl_init HAVE_ACL_INIT)
1857     CHECK_FUNCTION_EXISTS_GLIBC(acl_set_fd HAVE_ACL_SET_FD)
1858     CHECK_FUNCTION_EXISTS_GLIBC(acl_set_file HAVE_ACL_SET_FILE)
1859     CHECK_FUNCTION_EXISTS_GLIBC(acl_set_qualifier HAVE_ACL_SET_QUALIFIER)
1860     CHECK_FUNCTION_EXISTS_GLIBC(acl_set_tag_type HAVE_ACL_SET_TAG_TYPE)
1861     IF(HAVE_ACL_ADD_PERM AND
1862        HAVE_ACL_CLEAR_PERMS AND
1863        HAVE_ACL_CREATE_ENTRY AND
1864        HAVE_ACL_DELETE_DEF_FILE AND
1865        HAVE_ACL_FREE AND
1866        HAVE_ACL_GET_ENTRY AND
1867        HAVE_ACL_GET_FD AND
1868        HAVE_ACL_GET_FILE AND
1869        HAVE_ACL_GET_PERMSET AND
1870        HAVE_ACL_GET_QUALIFIER AND
1871        HAVE_ACL_GET_TAG_TYPE AND
1872        HAVE_ACL_INIT AND
1873        HAVE_ACL_SET_FD AND
1874        HAVE_ACL_SET_FILE AND
1875        HAVE_ACL_SET_QUALIFIER AND
1876        HAVE_ACL_SET_TAG_TYPE)
1877          SET(HAVE_POSIX_ACL_FUNCS 1)
1878     ENDIF()
1879
1880     CHECK_FUNCTION_EXISTS_GLIBC(acl_get_perm HAVE_ACL_GET_PERM)
1881
1882     IF(HAVE_POSIX_ACL_FUNCS AND HAVE_ACL_LIBACL_H AND HAVE_LIBACL AND
1883        HAVE_ACL_GET_PERM)
1884       SET(ARCHIVE_ACL_LIBACL TRUE)
1885     ELSE()
1886       CHECK_FUNCTION_EXISTS(acl_add_flag_np HAVE_ACL_ADD_FLAG_NP)
1887       CHECK_FUNCTION_EXISTS(acl_clear_flags_np HAVE_ACL_CLEAR_FLAGS_NP)
1888       CHECK_FUNCTION_EXISTS(acl_get_brand_np HAVE_ACL_GET_BRAND_NP)
1889       CHECK_FUNCTION_EXISTS(acl_get_entry_type_np HAVE_ACL_GET_ENTRY_TYPE_NP)
1890       CHECK_FUNCTION_EXISTS(acl_get_flag_np HAVE_ACL_GET_FLAG_NP)
1891       CHECK_FUNCTION_EXISTS(acl_get_flagset_np HAVE_ACL_GET_FLAGSET_NP)
1892       CHECK_FUNCTION_EXISTS(acl_get_fd_np HAVE_ACL_GET_FD_NP)
1893       CHECK_FUNCTION_EXISTS(acl_get_link_np HAVE_ACL_GET_LINK_NP)
1894       CHECK_FUNCTION_EXISTS(acl_get_perm_np HAVE_ACL_GET_PERM_NP)
1895       CHECK_FUNCTION_EXISTS(acl_is_trivial_np HAVE_ACL_IS_TRIVIAL_NP)
1896       CHECK_FUNCTION_EXISTS(acl_set_entry_type_np HAVE_ACL_SET_ENTRY_TYPE_NP)
1897       CHECK_FUNCTION_EXISTS(acl_set_fd_np HAVE_ACL_SET_FD_NP)
1898       CHECK_FUNCTION_EXISTS(acl_set_link_np HAVE_ACL_SET_LINK_NP)
1899       CHECK_FUNCTION_EXISTS(mbr_gid_to_uuid HAVE_MBR_GID_TO_UUID)
1900       CHECK_FUNCTION_EXISTS(mbr_uid_to_uuid HAVE_MBR_UID_TO_UUID)
1901       CHECK_FUNCTION_EXISTS(mbr_uuid_to_id HAVE_MBR_UUID_TO_ID)
1902
1903       CHECK_C_SOURCE_COMPILES("#include <sys/types.h>
1904 #include <sys/acl.h>
1905 int main(void) { return ACL_TYPE_EXTENDED; }" HAVE_DECL_ACL_TYPE_EXTENDED)
1906       CHECK_C_SOURCE_COMPILES("#include <sys/types.h>
1907 #include <sys/acl.h>
1908 int main(void) { return ACL_SYNCHRONIZE; }" HAVE_DECL_ACL_SYNCHRONIZE)
1909       CHECK_SYMBOL_EXISTS(ACL_TYPE_NFS4 "sys/acl.h" HAVE_DECL_ACL_TYPE_NFS4)
1910       CHECK_SYMBOL_EXISTS(ACL_USER "sys/acl.h" HAVE_DECL_ACL_USER)
1911
1912       IF(HAVE_POSIX_ACL_FUNCS AND
1913          HAVE_ACL_GET_FD_NP AND
1914          HAVE_ACL_GET_PERM_NP AND
1915          NOT HAVE_ACL_GET_PERM AND
1916          HAVE_ACL_SET_FD_NP)
1917         IF(HAVE_DECL_ACL_USER)
1918           SET(ARCHIVE_ACL_FREEBSD TRUE)
1919           IF(HAVE_DECL_ACL_TYPE_NFS4 AND
1920              HAVE_ACL_ADD_FLAG_NP AND
1921              HAVE_ACL_CLEAR_FLAGS_NP AND
1922              HAVE_ACL_GET_BRAND_NP AND
1923              HAVE_ACL_GET_ENTRY_TYPE_NP AND
1924              HAVE_ACL_GET_FLAGSET_NP AND
1925              HAVE_ACL_SET_ENTRY_TYPE_NP)
1926             SET(ARCHIVE_ACL_FREEBSD_NFS4 TRUE)
1927           ENDIF()
1928         ELSEIF(HAVE_DECL_ACL_TYPE_EXTENDED AND
1929                HAVE_MEMBERSHIP_H AND
1930                HAVE_ACL_ADD_FLAG_NP AND
1931                HAVE_ACL_CLEAR_FLAGS_NP AND
1932                HAVE_ACL_GET_FLAGSET_NP AND
1933                HAVE_ACL_GET_LINK_NP AND
1934                HAVE_ACL_SET_LINK_NP AND
1935                HAVE_MBR_UID_TO_UUID AND
1936                HAVE_MBR_GID_TO_UUID AND
1937                HAVE_MBR_UUID_TO_ID)
1938           SET(ARCHIVE_ACL_DARWIN TRUE)
1939         ENDIF()
1940       ENDIF()
1941     ENDIF()
1942   ENDIF(HAVE_ACL_T AND HAVE_ACL_ENTRY_T AND HAVE_ACL_PERMSET_T AND
1943         HAVE_ACL_TAG_T)
1944
1945   # Richacl
1946   CHECK_LIBRARY_EXISTS(richacl "richacl_get_file" "" HAVE_LIBRICHACL)
1947   IF(HAVE_LIBRICHACL)
1948     SET(CMAKE_REQUIRED_LIBRARIES "richacl")
1949     FIND_LIBRARY(RICHACL_LIBRARY NAMES richacl)
1950     LIST(APPEND ADDITIONAL_LIBS ${RICHACL_LIBRARY})
1951   ENDIF(HAVE_LIBRICHACL)
1952
1953   CHECK_STRUCT_HAS_MEMBER("struct richace" e_type "sys/richacl.h"
1954     HAVE_STRUCT_RICHACE)
1955   CHECK_STRUCT_HAS_MEMBER("struct richacl" a_flags "sys/richacl.h"
1956     HAVE_STRUCT_RICHACL)
1957
1958   IF(HAVE_LIBRICHACL AND HAVE_STRUCT_RICHACL AND HAVE_STRUCT_RICHACE)
1959     CHECK_FUNCTION_EXISTS_GLIBC(richacl_alloc HAVE_RICHACL_ALLOC)
1960     CHECK_FUNCTION_EXISTS_GLIBC(richacl_equiv_mode HAVE_RICHACL_EQUIV_MODE)
1961     CHECK_FUNCTION_EXISTS_GLIBC(richacl_free HAVE_RICHACL_FREE)
1962     CHECK_FUNCTION_EXISTS_GLIBC(richacl_get_fd HAVE_RICHACL_GET_FD)
1963     CHECK_FUNCTION_EXISTS_GLIBC(richacl_get_file HAVE_RICHACL_GET_FILE)
1964     CHECK_FUNCTION_EXISTS_GLIBC(richacl_set_fd HAVE_RICHACL_SET_FD)
1965     CHECK_FUNCTION_EXISTS_GLIBC(richacl_set_file HAVE_RICHACL_SET_FILE)
1966     IF(HAVE_RICHACL_ALLOC AND
1967        HAVE_RICHACL_EQUIV_MODE AND
1968        HAVE_RICHACL_FREE AND
1969        HAVE_RICHACL_GET_FD AND
1970        HAVE_RICHACL_GET_FILE AND
1971        HAVE_RICHACL_SET_FD AND
1972        HAVE_RICHACL_SET_FILE)
1973       SET(ARCHIVE_ACL_LIBRICHACL TRUE)
1974     ENDIF()
1975   ENDIF(HAVE_LIBRICHACL AND HAVE_STRUCT_RICHACL AND HAVE_STRUCT_RICHACE)
1976
1977   IF(ARCHIVE_ACL_DARWIN)
1978     MESSAGE(STATUS "ACL support: Darwin (limited NFSv4)")
1979   ELSEIF(ARCHIVE_ACL_FREEBSD_NFS4)
1980     MESSAGE(STATUS "ACL support: FreeBSD (POSIX.1e and NFSv4)")
1981   ELSEIF(ARCHIVE_ACL_FREEBSD)
1982     MESSAGE(STATUS "ACL support: FreeBSD (POSIX.1e)")
1983   ELSEIF(ARCHIVE_ACL_LIBACL OR ARCHIVE_ACL_LIBRICHACL)
1984     IF(ARCHIVE_ACL_LIBACL AND ARCHIVE_ACL_LIBRICHACL)
1985       MESSAGE(STATUS "ACL support: libacl (POSIX.1e) + librichacl (NFSv4)")
1986     ELSEIF(ARCHIVE_ACL_LIBRICHACL)
1987       MESSAGE(STATUS "ACL support: librichacl (NFSv4)")
1988     ELSE()
1989       MESSAGE(STATUS "ACL support: libacl (POSIX.1e)")
1990     ENDIF()
1991   ELSEIF(ARCHIVE_ACL_SUNOS_NFS4)
1992     MESSAGE(STATUS "ACL support: Solaris (POSIX.1e and NFSv4)")
1993   ELSEIF(ARCHIVE_ACL_SUNOS)
1994     MESSAGE(STATUS "ACL support: Solaris (POSIX.1e)")
1995   ELSE()
1996     MESSAGE(STATUS "ACL support: none")
1997   ENDIF()
1998
1999 ELSE(ENABLE_ACL)
2000   # If someone runs cmake, then disables ACL support, we need
2001   # to forcibly override the cached values for these.
2002   SET(ARCHIVE_ACL_DARWIN FALSE)
2003   SET(ARCHIVE_ACL_FREEBSD FALSE)
2004   SET(ARCHIVE_ACL_FREEBSD_NFS4 FALSE)
2005   SET(ARCHIVE_ACL_LIBACL FALSE)
2006   SET(ARCHIVE_ACL_SUNOS FALSE)
2007   SET(ARCHIVE_ACL_SUNOS_NFS4 FALSE)
2008 ENDIF(ENABLE_ACL)
2009
2010 #
2011 # Check MD5/RMD160/SHA support
2012 # NOTE: Crypto checks must be run last before generating config.h
2013 #
2014 CHECK_CRYPTO("MD5;RMD160;SHA1;SHA256;SHA384;SHA512" LIBC)
2015 CHECK_CRYPTO("SHA256;SHA384;SHA512" LIBC2)
2016 CHECK_CRYPTO("SHA256;SHA384;SHA512" LIBC3)
2017 CHECK_CRYPTO("MD5;SHA1;SHA256;SHA384;SHA512" LIBSYSTEM)
2018 CHECK_CRYPTO("MD5;RMD160;SHA1;SHA256;SHA384;SHA512" MBEDTLS)
2019 CHECK_CRYPTO("MD5;RMD160;SHA1;SHA256;SHA384;SHA512" NETTLE)
2020 CHECK_CRYPTO("MD5;RMD160;SHA1;SHA256;SHA384;SHA512" OPENSSL)
2021
2022 # Libmd has to be probed after OpenSSL.
2023 CHECK_CRYPTO("MD5;RMD160;SHA1;SHA256;SHA512" LIBMD)
2024
2025 CHECK_CRYPTO_WIN("MD5;SHA1;SHA256;SHA384;SHA512")
2026
2027 # Generate "config.h" from "build/cmake/config.h.in"
2028 CONFIGURE_FILE(${CMAKE_CURRENT_SOURCE_DIR}/build/cmake/config.h.in
2029         ${CMAKE_CURRENT_BINARY_DIR}/config.h)
2030 INCLUDE_DIRECTORIES(BEFORE ${CMAKE_CURRENT_BINARY_DIR})
2031 ADD_DEFINITIONS(-DHAVE_CONFIG_H)
2032
2033 # Handle generation of the libarchive.pc file for pkg-config
2034 INCLUDE(CreatePkgConfigFile)
2035
2036 #
2037 # Register installation of PDF documents.
2038 #
2039 IF(WIN32 AND NOT CYGWIN)
2040   #
2041   # On Windows platform, It's better that we install PDF documents
2042   # on one's computer.
2043   # These PDF documents are available in the release package.
2044   #
2045   IF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/doc/pdf)
2046     INSTALL(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/doc/pdf
2047             DESTINATION share/man
2048             FILES_MATCHING PATTERN "*.pdf"
2049     )
2050   ENDIF(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/doc/pdf)
2051 ENDIF(WIN32 AND NOT CYGWIN)
2052 #
2053 #
2054 #
2055 INCLUDE_DIRECTORIES(BEFORE ${CMAKE_CURRENT_SOURCE_DIR}/libarchive)
2056 #
2057 IF(MSVC)
2058   ADD_DEFINITIONS(-D_CRT_SECURE_NO_DEPRECATE)
2059 ENDIF(MSVC)
2060
2061 IF(APPLE)
2062   # CC_MD5_Init() functions are deprecated on macOS 10.15, but we want to use them
2063   ADD_DEFINITIONS(-Wno-deprecated-declarations)
2064 ENDIF(APPLE)
2065
2066 IF(ENABLE_TEST)
2067   ADD_CUSTOM_TARGET(run_all_tests)
2068 ENDIF(ENABLE_TEST)
2069
2070 add_subdirectory(libarchive)
2071 add_subdirectory(cat)
2072 add_subdirectory(tar)
2073 add_subdirectory(cpio)