# CMake build for libtiff

# Run "cmake" to generate the build files for your platform

#

# Copyright © 2015 Open Microscopy Environment / University of Dundee

# Written by Roger Leigh <rleigh@codelibre.net>

#

# Permission to use, copy, modify, distribute, and sell this software and

# its documentation for any purpose is hereby granted without fee, provided

# that (i) the above copyright notices and this permission notice appear in

# all copies of the software and related documentation, and (ii) the names of

# Sam Leffler and Silicon Graphics may not be used in any advertising or

# publicity relating to the software without the specific, prior written

# permission of Sam Leffler and Silicon Graphics.

#

# THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,

# EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY

# WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

#

# IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR

# ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,

# OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,

# WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF

# LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE

# OF THIS SOFTWARE.

cmake_minimum_required(VERSION 2.8.9)

# Default policy is from 2.8.9

cmake_policy(VERSION 2.8.9)

# Set MacOSX @rpath usage globally.

if (POLICY CMP0020)

  cmake_policy(SET CMP0020 NEW)

endif(POLICY CMP0020)

if (POLICY CMP0042)

  cmake_policy(SET CMP0042 NEW)

endif(POLICY CMP0042)

# Use new variable expansion policy.

if (POLICY CMP0053)

  cmake_policy(SET CMP0053 NEW)

endif(POLICY CMP0053)

if (POLICY CMP0054)

  cmake_policy(SET CMP0054 NEW)

endif(POLICY CMP0054)

# Read version information from configure.ac.

FILE(READ "${CMAKE_CURRENT_SOURCE_DIR}/configure.ac" configure)

STRING(REGEX REPLACE ";" "\\\\;" configure "${configure}")

STRING(REGEX REPLACE "\n" ";" configure "${configure}")

foreach(line ${configure})

  foreach(var LIBTIFF_MAJOR_VERSION LIBTIFF_MINOR_VERSION LIBTIFF_MICRO_VERSION LIBTIFF_ALPHA_VERSION

          LIBTIFF_CURRENT LIBTIFF_REVISION LIBTIFF_AGE)

    if(NOT ${var})

      string(REGEX MATCH "^${var}=(.*)" ${var}_MATCH "${line}")

      if(${var}_MATCH)

        string(REGEX REPLACE "^${var}=(.*)" "\\1" ${var} "${line}")

      endif()

    endif()

  endforeach()

endforeach()

math(EXPR SO_MAJOR "${LIBTIFF_CURRENT} - ${LIBTIFF_AGE}")

set(SO_MINOR "${LIBTIFF_AGE}")

set(SO_REVISION "${LIBTIFF_REVISION}")

message(STATUS "Building tiff version ${LIBTIFF_MAJOR_VERSION}.${LIBTIFF_MINOR_VERSION}.${LIBTIFF_MICRO_VERSION}${LIBTIFF_ALPHA_VERSION}")

message(STATUS "libtiff library version ${SO_MAJOR}.${SO_MINOR}.${SO_REVISION}")

set(BUILD_SHARED_LIBS ON CACHE BOOL "Build shared libraries")

# Project version

project(tiff C)

set(VERSION "${LIBTIFF_MAJOR_VERSION}.${LIBTIFF_MINOR_VERSION}.${LIBTIFF_MICRO_VERSION}")

set(tiff_VERSION "${VERSION}")

set(tiff_VERSION_MAJOR "${LIBTIFF_MAJOR_VERSION}")

set(tiff_VERSION_MINOR "${LIBTIFF_MINOR_VERSION}")

set(tiff_VERSION_PATCH "${LIBTIFF_MICRO_VERSION}")

# the other tiff_VERSION_* variables are set automatically

set(tiff_VERSION_ALPHA "${LIBTIFF_ALPHA_VERSION}")

# Library version (unlike libtool's baroque scheme, WYSIWYG here)

set(SO_COMPATVERSION "${SO_MAJOR}")

set(SO_VERSION "${SO_MAJOR}.${SO_MINOR}.${SO_REVISION}")

# For autotools header compatibility

set(PACKAGE_NAME "LibTIFF Software")

set(PACKAGE_TARNAME "${PROJECT_NAME}")

set(PACKAGE_VERSION "${PROJECT_VERSION}${tiff_VERSION_ALPHA}")

set(PACKAGE_STRING "${PACKAGE_NAME} ${PACKAGE_VERSION}")

set(PACKAGE_BUGREPORT "tiff@lists.maptools.org")

include(GNUInstallDirs)

include(CheckCCompilerFlag)

include(CheckCSourceCompiles)

include(CheckIncludeFile)

include(CheckTypeSize)

include(CheckFunctionExists)

enable_testing()

macro(current_date var)

  if(UNIX)

    execute_process(COMMAND "date" +"%Y%m%d" OUTPUT_VARIABLE ${var})

  endif()

endmacro()

current_date(RELEASE_DATE)

macro(extra_dist)

  foreach(file ${ARGV})

    file(RELATIVE_PATH relfile "${PROJECT_SOURCE_DIR}"

         "${CMAKE_CURRENT_SOURCE_DIR}/${file}")

    list(APPEND EXTRA_DIST "${relfile}")

  endforeach()

  set(EXTRA_DIST "${EXTRA_DIST}" PARENT_SCOPE)

endmacro()

set(EXTRA_DIST

  HOWTO-RELEASE

  Makefile.vc

  SConstruct

  autogen.sh

  configure.com

  nmake.opt

  libtiff-4.pc.in)

# These are annoyingly verbose, produce false positives or don't work

# nicely with all supported compiler versions, so are disabled unless

# explicitly enabled.

option(extra-warnings "Enable extra compiler warnings" OFF)

# This will cause the compiler to fail when an error occurs.

option(fatal-warnings "Compiler warnings are errors" OFF)

# Check if the compiler supports each of the following additional

# flags, and enable them if supported.  This greatly improves the

# quality of the build by checking for a number of common problems,

# some of which are quite serious.

if(CMAKE_C_COMPILER_ID STREQUAL "GNU" OR

   CMAKE_C_COMPILER_ID MATCHES "Clang")

  set(test_flags

      -Wall

      -Winline

      -W

      -Wformat-security

      -Wpointer-arith

      -Wdisabled-optimization

      -Wno-unknown-pragmas

      -Wdeclaration-after-statement

      -fstrict-aliasing)

  if(extra-warnings)

    list(APPEND test_flags

        -Wfloat-equal

        -Wmissing-prototypes

        -Wunreachable-code)

  endif()

  if(fatal-warnings)

    list(APPEND test_flags

         -Werror)

  endif()

elseif(CMAKE_C_COMPILER_ID STREQUAL "MSVC")

  set(test_flags)

  if(extra-warnings)

    list(APPEND test_flags

         /W4)

  else()

    list(APPEND test_flags

         /W3)

  endif()

  if (fatal-warnings)

    list(APPEND test_flags

         /WX)

  endif()

endif()

foreach(flag ${test_flags})

  string(REGEX REPLACE "[^A-Za-z0-9]" "_" flag_var "${flag}")

  set(test_c_flag "C_FLAG${flag_var}")

  CHECK_C_COMPILER_FLAG(${flag} "${test_c_flag}")

  if (${test_c_flag})

     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${flag}")

  endif (${test_c_flag})

endforeach(flag ${test_flags})

if(MSVC)

    set(CMAKE_DEBUG_POSTFIX "d")

endif()

option(ld-version-script "Enable linker version script" ON)

# Check if LD supports linker scripts.

file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map" "VERS_1 {

        global: sym;

};

VERS_2 {

        global: sym;

} VERS_1;

")

set(CMAKE_REQUIRED_FLAGS_SAVE ${CMAKE_REQUIRED_FLAGS})

set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} "-Wl,--version-script=${CMAKE_CURRENT_BINARY_DIR}/conftest.map")

check_c_source_compiles("int main(void){return 0;}" HAVE_LD_VERSION_SCRIPT)

set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS_SAVE})

file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/conftest.map")

if (ld-version-script AND HAVE_LD_VERSION_SCRIPT)

  set(HAVE_LD_VERSION_SCRIPT TRUE)

else()

  set(HAVE_LD_VERSION_SCRIPT FALSE)

endif()

# Find libm, if available

find_library(M_LIBRARY m)

check_include_file(assert.h    HAVE_ASSERT_H)

check_include_file(dlfcn.h     HAVE_DLFCN_H)

check_include_file(fcntl.h     HAVE_FCNTL_H)

check_include_file(inttypes.h  HAVE_INTTYPES_H)

check_include_file(io.h        HAVE_IO_H)

check_include_file(limits.h    HAVE_LIMITS_H)

check_include_file(malloc.h    HAVE_MALLOC_H)

check_include_file(memory.h    HAVE_MEMORY_H)

check_include_file(search.h    HAVE_SEARCH_H)

check_include_file(stdint.h    HAVE_STDINT_H)

check_include_file(string.h    HAVE_STRING_H)

check_include_file(strings.h   HAVE_STRINGS_H)

check_include_file(sys/time.h  HAVE_SYS_TIME_H)

check_include_file(sys/types.h HAVE_SYS_TYPES_H)

check_include_file(unistd.h    HAVE_UNISTD_H)

# Inspired from /usr/share/autoconf/autoconf/c.m4

foreach(inline_keyword "inline" "__inline__" "__inline")

  if(NOT DEFINED C_INLINE)

    set(CMAKE_REQUIRED_DEFINITIONS_SAVE ${CMAKE_REQUIRED_DEFINITIONS})

    set(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS}

        "-Dinline=${inline_keyword}")

    check_c_source_compiles("

        typedef int foo_t;

        static inline foo_t static_foo() {return 0;}

        foo_t foo(){return 0;}

        int main(int argc, char *argv[]) {return 0;}"

      C_HAS_${inline_keyword})

    set(CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS_SAVE})

    if(C_HAS_${inline_keyword})

      set(C_INLINE TRUE)

      set(INLINE_KEYWORD "${inline_keyword}")

    endif()

 endif()

endforeach()

if(NOT DEFINED C_INLINE)

  set(INLINE_KEYWORD)

endif()

# off_t and size_t checks omitted; not clear they are used at all

# Are off_t and size_t checks strictly necessary?

# Check if sys/time.h and time.h allow use together

check_c_source_compiles("

#include <sys/time.h>

#include <time.h>

int main(void){return 0;}"

  TIME_WITH_SYS_TIME)

# Check if struct tm is in sys/time.h

check_c_source_compiles("

#include <sys/types.h>

#include <time.h>

int main(void){

  struct tm tm;

  int *p = &tm.tm_sec;

  return !p;

}"

  TM_IN_SYS_TIME)

# Check type sizes

# NOTE: Could be replaced with C99 <stdint.h>

check_type_size("signed short" SIZEOF_SIGNED_SHORT)

check_type_size("unsigned short" SIZEOF_UNSIGNED_SHORT)

check_type_size("signed int" SIZEOF_SIGNED_INT)

check_type_size("unsigned int" SIZEOF_UNSIGNED_INT)

check_type_size("signed long" SIZEOF_SIGNED_LONG)

check_type_size("unsigned long" SIZEOF_UNSIGNED_LONG)

check_type_size("signed long long" SIZEOF_SIGNED_LONG_LONG)

check_type_size("unsigned long long" SIZEOF_UNSIGNED_LONG_LONG)

check_type_size("unsigned char *" SIZEOF_UNSIGNED_CHAR_P)

set(CMAKE_EXTRA_INCLUDE_FILES_SAVE ${CMAKE_EXTRA_INCLUDE_FILES})

set(CMAKE_EXTRA_INCLUDE_FILES ${CMAKE_EXTRA_INCLUDE_FILES} "stddef.h")

check_type_size("size_t" SIZEOF_SIZE_T)

check_type_size("ptrdiff_t" SIZEOF_PTRDIFF_T)

set(CMAKE_EXTRA_INCLUDE_FILES ${CMAKE_EXTRA_INCLUDE_FILES_SAVE})

macro(report_values)

  foreach(val ${ARGV})

    message(STATUS "${val} set to ${${val}}")

  endforeach()

endmacro()

set(TIFF_INT8_T "signed char")

set(TIFF_UINT8_T "unsigned char")

set(TIFF_INT16_T "signed short")

set(TIFF_UINT16_T "unsigned short")

if(SIZEOF_SIGNED_INT EQUAL 4)

  set(TIFF_INT32_T "signed int")

  set(TIFF_INT32_FORMAT "%d")

elseif(SIZEOF_SIGNED_LONG EQUAL 4)

  set(TIFF_INT32_T "signed long")

  set(TIFF_INT32_FORMAT "%ld")

endif()

if(SIZEOF_UNSIGNED_INT EQUAL 4)

  set(TIFF_UINT32_T "unsigned int")

  set(TIFF_UINT32_FORMAT "%u")

elseif(SIZEOF_UNSIGNED_LONG EQUAL 4)

  set(TIFF_UINT32_T "unsigned long")

  set(TIFF_UINT32_FORMAT "%lu")

endif()

if(SIZEOF_SIGNED_LONG EQUAL 8)

  set(TIFF_INT64_T "signed long")

  set(TIFF_INT64_FORMAT "%ld")

elseif(SIZEOF_SIGNED_LONG_LONG EQUAL 8)

  set(TIFF_INT64_T "signed long long")

  if (MINGW)

    set(TIFF_INT64_FORMAT "%I64d")

  else()

    set(TIFF_INT64_FORMAT "%lld")

  endif()

endif()

if(SIZEOF_UNSIGNED_LONG EQUAL 8)

  set(TIFF_UINT64_T "unsigned long")

  set(TIFF_UINT64_FORMAT "%lu")

elseif(SIZEOF_UNSIGNED_LONG_LONG EQUAL 8)

  set(TIFF_UINT64_T "unsigned long long")

  if (MINGW)

    set(TIFF_UINT64_FORMAT "%I64u")

  else()

    set(TIFF_UINT64_FORMAT "%llu")

  endif()

endif()

if(SIZEOF_UNSIGNED_INT EQUAL SIZEOF_SIZE_T)

  set(TIFF_SIZE_T "unsigned int")

  set(TIFF_SIZE_FORMAT "%u")

elseif(SIZEOF_UNSIGNED_LONG EQUAL SIZEOF_SIZE_T)

  set(TIFF_SIZE_T "unsigned long")

  set(TIFF_SIZE_FORMAT "%lu")

elseif(SIZEOF_UNSIGNED_LONG_LONG EQUAL SIZEOF_SIZE_T)

  set(TIFF_SIZE_T "unsigned long")

  if (MINGW)

    set(TIFF_SIZE_FORMAT "%I64u")

  else()

    set(TIFF_SIZE_FORMAT "%llu")

  endif()

endif()

if(SIZEOF_SIGNED_INT EQUAL SIZEOF_UNSIGNED_CHAR_P)

  set(TIFF_SSIZE_T "signed int")

  set(TIFF_SSIZE_FORMAT "%d")

elseif(SIZEOF_SIGNED_LONG EQUAL SIZEOF_UNSIGNED_CHAR_P)

  set(TIFF_SSIZE_T "signed long")

  set(TIFF_SSIZE_FORMAT "%ld")

elseif(SIZEOF_SIGNED_LONG_LONG EQUAL SIZEOF_UNSIGNED_CHAR_P)

  set(TIFF_SSIZE_T "signed long long")

  if (MINGW)

    set(TIFF_SSIZE_FORMAT "%I64d")

  else()

    set(TIFF_SSIZE_FORMAT "%lld")

  endif()

endif()

if(NOT SIZEOF_PTRDIFF_T)

  set(TIFF_PTRDIFF_T "${TIFF_SSIZE_T}")

  set(TIFF_PTRDIFF_FORMAT "${SSIZE_FORMAT}")

else()

  set(TIFF_PTRDIFF_T "ptrdiff_t")

  set(TIFF_PTRDIFF_FORMAT "%ld")

endif()

#report_values(TIFF_INT8_T TIFF_INT8_FORMAT

#              TIFF_UINT8_T TIFF_UINT8_FORMAT

#              TIFF_INT16_T TIFF_INT16_FORMAT

#              TIFF_UINT16_T TIFF_UINT16_FORMAT

#              TIFF_INT32_T TIFF_INT32_FORMAT

#              TIFF_UINT32_T TIFF_UINT32_FORMAT

#              TIFF_INT64_T TIFF_INT64_FORMAT

#              TIFF_UINT64_T TIFF_UINT64_FORMAT

#              TIFF_SSIZE_T TIFF_SSIZE_FORMAT

#              TIFF_PTRDIFF_T TIFF_PTRDIFF_FORMAT)

# Nonstandard int types

check_type_size(INT8 int8)

set(HAVE_INT8 ${INT8})

check_type_size(INT16 int16)

set(HAVE_INT16 ${INT16})

check_type_size(INT32 int32)

set(HAVE_INT32 ${INT32})

# Check functions

set(CMAKE_REQUIRED_LIBRARIES_SAVE ${CMAKE_REQUIRED_LIBRARIES})

set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${M_LIBRARY})

check_function_exists(floor HAVE_FLOOR)

check_function_exists(pow   HAVE_POW)

check_function_exists(sqrt  HAVE_SQRT)

set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES_SAVE})

check_function_exists(isascii    HAVE_ISASCII)

check_function_exists(memmove    HAVE_MEMMOVE)

check_function_exists(memset     HAVE_MEMSET)

check_function_exists(mmap       HAVE_MMAP)

check_function_exists(setmode    HAVE_SETMODE)

check_function_exists(strcasecmp HAVE_STRCASECMP)

check_function_exists(strchr     HAVE_STRCHR)

check_function_exists(strrchr    HAVE_STRRCHR)

check_function_exists(strstr     HAVE_STRSTR)

check_function_exists(strtol     HAVE_STRTOL)

check_function_exists(strtol     HAVE_STRTOUL)

check_function_exists(strtoull   HAVE_STRTOULL)

check_function_exists(getopt     HAVE_GETOPT)

check_function_exists(lfind      HAVE_LFIND)

# May be inlined, so check it compiles:

check_c_source_compiles("

#include <stdio.h>

int main(void) {

  char buf[10];

  snprintf(buf, 10, \"Test %d\", 1);

  return 0;

}"

  HAVE_SNPRINTF)

if(NOT HAVE_SNPRINTF)

  add_definitions(-DNEED_LIBPORT)

endif()

# CPU bit order

set(fillorder FILLORDER_MSB2LSB)

if(CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "i.*86.*" OR

   CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "amd64.*" OR

   CMAKE_HOST_SYSTEM_PROCESSOR MATCHES "x86_64.*")

  set(fillorder FILLORDER_LSB2MSB)

endif()

set(HOST_FILLORDER ${fillorder} CACHE STRING "Native CPU bit order")

mark_as_advanced(HOST_FILLORDER)

# CPU endianness

include(TestBigEndian)

test_big_endian(bigendian)

if (bigendian)

  set(bigendian ON)

else()

  set(bigendian OFF)

endif()

set(HOST_BIG_ENDIAN ${bigendian} CACHE STRING "Native CPU bit order")

mark_as_advanced(HOST_BIG_ENDIAN)

if (HOST_BIG_ENDIAN)

  set(HOST_BIG_ENDIAN 1)

else()

  set(HOST_BIG_ENDIAN 0)

endif()

# IEEE floating point

set(HAVE_IEEEFP 1 CACHE STRING "IEEE floating point is available")

mark_as_advanced(HAVE_IEEEFP)

report_values(CMAKE_HOST_SYSTEM_PROCESSOR HOST_FILLORDER

              HOST_BIG_ENDIAN HAVE_IEEEFP)

# Large file support

if (UNIX OR MINGW)

  # This might not catch every possibility catered for by

  # AC_SYS_LARGEFILE.

  add_definitions(-D_FILE_OFFSET_BITS=64)

  set(FILE_OFFSET_BITS 64)

endif()

# Documentation install directory (default to cmake project docdir)

set(LIBTIFF_DOCDIR "${CMAKE_INSTALL_FULL_DOCDIR}")

# Options to enable and disable internal codecs

option(ccitt "support for CCITT Group 3 & 4 algorithms" ON)

set(CCITT_SUPPORT ${ccitt})

option(packbits "support for Macintosh PackBits algorithm" ON)

set(PACKBITS_SUPPORT ${packbits})

option(lzw "support for LZW algorithm" ON)

set(LZW_SUPPORT ${lzw})

option(thunder "support for ThunderScan 4-bit RLE algorithm" ON)

set(THUNDER_SUPPORT ${thunder})

option(next "support for NeXT 2-bit RLE algorithm" ON)

set(NEXT_SUPPORT ${next})

option(logluv "support for LogLuv high dynamic range algorithm" ON)

set(LOGLUV_SUPPORT ${logluv})

# Option for Microsoft Document Imaging

option(mdi "support for Microsoft Document Imaging" ON)

set(MDI_SUPPORT ${mdi})

# ZLIB

option(zlib "use zlib (required for Deflate compression)" ON)

if (zlib)

  find_package(ZLIB)

endif()

set(ZLIB_SUPPORT 0)

if(ZLIB_FOUND)

  set(ZLIB_SUPPORT 1)

endif()

set(ZIP_SUPPORT ${ZLIB_SUPPORT})

# Option for Pixar log-format algorithm

# Pixar log format

option(pixarlog "support for Pixar log-format algorithm (requires Zlib)" ON)

set(PIXARLOG_SUPPORT FALSE)

if (ZLIB_SUPPORT)

  if(pixarlog)

    set(PIXARLOG_SUPPORT TRUE)

  endif()

endif()

# JPEG

option(jpeg "use libjpeg (required for JPEG compression)" ON)

if (jpeg)

  find_package(JPEG)

endif()

set(JPEG_SUPPORT FALSE)

if(JPEG_FOUND)

  set(JPEG_SUPPORT TRUE)

endif()

option(old-jpeg "support for Old JPEG compression (read-only)" ON)

set(OJPEG_SUPPORT FALSE)

if (JPEG_SUPPORT)

  if (old-jpeg)

    set(OJPEG_SUPPORT TRUE)

  endif()

endif()

# JBIG-KIT

option(jbig "use ISO JBIG compression (requires JBIT-KIT library)" ON)

if (jbig)

  set(JBIG_FOUND 0)

  find_path(JBIG_INCLUDE_DIR jbig.h)

  set(JBIG_NAMES ${JBIG_NAMES} jbig libjbig)

  find_library(JBIG_LIBRARY NAMES ${JBIG_NAMES})

  if (JBIG_INCLUDE_DIR AND JBIG_LIBRARY)

    set(JBIG_FOUND 1)

    set(JBIG_LIBRARIES ${JBIG_LIBRARY})

  endif()

endif()

set(JBIG_SUPPORT 0)

if(JBIG_FOUND)

  set(JBIG_FOUND TRUE)

  set(JBIG_SUPPORT 1)

else()

  set(JBIG_FOUND FALSE)

endif()

set(CMAKE_REQUIRED_LIBRARIES_SAVE ${CMAKE_REQUIRED_LIBRARIES})

set(CMAKE_REQUIRED_INCLUDES_SAVE ${CMAKE_REQUIRED_INCLUDES})

set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES} ${JBIG_INCLUDE_DIR})

set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES} ${JBIG_LIBRARY})

check_function_exists(jbg_newlen HAVE_JBG_NEWLEN)

set(CMAKE_REQUIRED_LIBRARIES ${CMAKE_REQUIRED_LIBRARIES_SAVE})

set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES_SAVE})

# liblzma2

option(lzma "use liblzma (required for LZMA2 compression)" ON)

if (lzma)

  find_package(LibLZMA)

endif()

set(LZMA_SUPPORT 0)

if(LIBLZMA_FOUND)

  set(LZMA_SUPPORT 1)

endif()

# 8/12-bit jpeg mode

option(jpeg12 "enable libjpeg 8/12-bit dual mode (requires separate

12-bit libjpeg build)" ON)

set(JPEG12_INCLUDE_DIR JPEG12_INCLUDE_DIR-NOTFOUND CACHE PATH "Include directory for 12-bit libjpeg")

set(JPEG12_LIBRARY JPEG12_LIBRARY-NOTFOUND CACHE FILEPATH "12-bit libjpeg library")

set(JPEG12_FOUND FALSE)

if (JPEG12_INCLUDE_DIR AND JPEG12_LIBRARY)

  set(JPEG12_LIBRARIES ${JPEG12_LIBRARY})

  set(JPEG12_FOUND TRUE)

endif()

if (JPEG12_FOUND)

  set(JPEG_DUAL_MODE_8_12 1)

  set(LIBJPEG_12_PATH "${JPEG12_INCLUDE_DIR}/jpeglib.h")

endif()

# C++ support

option(cxx "Enable C++ stream API building (requires C++ compiler)" ON)

set(CXX_SUPPORT FALSE)

if (cxx)

  enable_language(CXX)

  set(CXX_SUPPORT TRUE)

endif()

# OpenGL and GLUT

find_package(OpenGL)

find_package(GLUT)

set(HAVE_OPENGL FALSE)

if(OPENGL_FOUND AND OPENGL_GLU_FOUND AND GLUT_FOUND)

  set(HAVE_OPENGL TRUE)

endif()

# Purely to satisfy the generated headers:

check_include_file(GL/gl.h HAVE_GL_GL_H)

check_include_file(GL/glu.h HAVE_GL_GLU_H)

check_include_file(GL/glut.h HAVE_GL_GLUT_H)

check_include_file(GLUT/glut.h HAVE_GLUT_GLUT_H)

check_include_file(OpenGL/gl.h HAVE_OPENGL_GL_H)

check_include_file(OpenGL/glu.h HAVE_OPENGL_GLU_H)

# Win32 IO

set(win32_io FALSE)

if(WIN32)

  set(win32_io TRUE)

endif()

set(USE_WIN32_FILEIO ${win32_io} CACHE BOOL "Use win32 IO system (Microsoft Windows only)")

if (USE_WIN32_FILEIO)

  set(USE_WIN32_FILEIO TRUE)

else()

  set(USE_WIN32_FILEIO FALSE)

endif()

# Orthogonal features

# Strip chopping

option(strip-chopping "strip chopping (whether or not to convert single-strip uncompressed images to mutiple strips of specified size to reduce memory usage)" ON)

set(TIFF_DEFAULT_STRIP_SIZE 8192 CACHE STRING "default size of the strip in bytes (when strip chopping is enabled)")

set(STRIPCHOP_DEFAULT)

if(strip-chopping)

  set(STRIPCHOP_DEFAULT TRUE)

  if(TIFF_DEFAULT_STRIP_SIZE)

    set(STRIP_SIZE_DEFAULT "${TIFF_DEFAULT_STRIP_SIZE}")

  endif()

endif()

# Defer loading of strip/tile offsets

option(defer-strile-load "enable deferred strip/tile offset/size loading (experimental)" OFF)

set(DEFER_STRILE_LOAD ${defer-strile-load})

# CHUNKY_STRIP_READ_SUPPORT

option(chunky-strip-read "enable reading large strips in chunks for TIFFReadScanline() (experimental)" OFF)

set(CHUNKY_STRIP_READ_SUPPORT ${chunky-strip-read})

# SUBIFD support

set(SUBIFD_SUPPORT 1)

# Default handling of ASSOCALPHA support.

option(extrasample-as-alpha "the RGBA interface will treat a fourth sample with no EXTRASAMPLE_ value as being ASSOCALPHA. Many packages produce RGBA files but don't mark the alpha properly" ON)

if(extrasample-as-alpha)

  set(DEFAULT_EXTRASAMPLE_AS_ALPHA 1)

endif()

# Default handling of YCbCr subsampling support.

# See Bug 168 in Bugzilla, and JPEGFixupTestSubsampling() for details.

option(check-ycbcr-subsampling "enable picking up YCbCr subsampling info from the JPEG data stream to support files lacking the tag" ON)

if (check-ycbcr-subsampling)

  set(CHECK_JPEG_YCBCR_SUBSAMPLING 1)

endif()

# Generate pkg-config file

set(prefix "${CMAKE_INSTALL_PREFIX}")

set(exec_prefix "${CMAKE_INSTALL_PREFIX}")

set(libdir "${CMAKE_INSTALL_FULL_LIBDIR}")

set(includedir "${CMAKE_INSTALL_FULL_INCLUDEDIR}")

configure_file(${CMAKE_CURRENT_SOURCE_DIR}/libtiff-4.pc.in

               ${CMAKE_CURRENT_BINARY_DIR}/libtiff-4.pc)

install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libtiff-4.pc

        DESTINATION "${CMAKE_INSTALL_FULL_LIBDIR}/pkgconfig")

# Includes used by libtiff (and tests)

if(ZLIB_INCLUDE_DIRS)

  list(APPEND TIFF_INCLUDES ${ZLIB_INCLUDE_DIRS})

endif()

if(JPEG_INCLUDE_DIR)

  list(APPEND TIFF_INCLUDES ${JPEG_INCLUDE_DIR})

endif()

if(JPEG12_INCLUDE_DIR)

  list(APPEND TIFF_INCLUDES ${JPEG12_INCLUDE_DIR})

endif()

if(JBIG_INCLUDE_DIR)

  list(APPEND TIFF_INCLUDES ${JBIG_INCLUDE_DIR})

endif()

if(LIBLZMA_INCLUDE_DIRS)

  list(APPEND TIFF_INCLUDES ${LIBLZMA_INCLUDE_DIRS})

endif()

# Libraries required by libtiff

set(TIFF_LIBRARY_DEPS)

if(M_LIBRARY)

  list(APPEND TIFF_LIBRARY_DEPS ${M_LIBRARY})

endif()

if(ZLIB_LIBRARIES)

  list(APPEND TIFF_LIBRARY_DEPS ${ZLIB_LIBRARIES})

endif()

if(JPEG_LIBRARIES)

  list(APPEND TIFF_LIBRARY_DEPS ${JPEG_LIBRARIES})

endif()

if(JPEG12_LIBRARIES)

  list(APPEND TIFF_LIBRARY_DEPS ${JPEG12_LIBRARIES})

endif()

if(JBIG_LIBRARIES)

  list(APPEND TIFF_LIBRARY_DEPS ${JBIG_LIBRARIES})

endif()

if(LIBLZMA_LIBRARIES)

  list(APPEND TIFF_LIBRARY_DEPS ${LIBLZMA_LIBRARIES})

endif()

#report_values(TIFF_INCLUDES TIFF_LIBRARY_DEPS)

# Process subdirectories

add_subdirectory(port)

add_subdirectory(libtiff)

add_subdirectory(tools)

add_subdirectory(test)

add_subdirectory(contrib)

add_subdirectory(build)

add_subdirectory(man)

add_subdirectory(html)

#message(STATUS "EXTRA_DIST: ${EXTRA_DIST}")

message(STATUS "")

message(STATUS "Libtiff is now configured for ${host}")

message(STATUS "")

message(STATUS "  Installation directory:             ${prefix}")

message(STATUS "  Documentation directory:            ${LIBTIFF_DOCDIR}")

message(STATUS "  C compiler:                         ${CMAKE_C_COMPILER}")

message(STATUS "  C++ compiler:                       ${CMAKE_CXX_COMPILER}")

message(STATUS "  Build shared libraries:             ${BUILD_SHARED_LIBS}")

message(STATUS "  Enable linker symbol versioning:    ${HAVE_LD_VERSION_SCRIPT}")

message(STATUS "  Support Microsoft Document Imaging: ${mdi}")

message(STATUS "  Use win32 IO:                       ${USE_WIN32_FILEIO}")

message(STATUS "")

message(STATUS " Support for internal codecs:")

message(STATUS "  CCITT Group 3 & 4 algorithms:       ${ccitt}")

message(STATUS "  Macintosh PackBits algorithm:       ${packbits}")

message(STATUS "  LZW algorithm:                      ${lzw}")

message(STATUS "  ThunderScan 4-bit RLE algorithm:    ${thunder}")

message(STATUS "  NeXT 2-bit RLE algorithm:           ${next}")

message(STATUS "  LogLuv high dynamic range encoding: ${logluv}")

message(STATUS "")

message(STATUS " Support for external codecs:")

message(STATUS "  ZLIB support:                       ${zlib} (requested) ${ZLIB_FOUND} (availability)")

message(STATUS "  Pixar log-format algorithm:         ${pixarlog} (requested) ${PIXARLOG_SUPPORT} (availability)")

message(STATUS "  JPEG support:                       ${jpeg} (requested) ${JPEG_FOUND} (availability)")

message(STATUS "  Old JPEG support:                   ${old-jpeg} (requested) ${JPEG_FOUND} (availability)")

message(STATUS "  JPEG 8/12 bit dual mode:            ${jpeg12} (requested) ${JPEG12_FOUND} (availability)")

message(STATUS "  ISO JBIG support:                   ${jbig} (requested) ${JBIG_FOUND} (availability)")

message(STATUS "  LZMA2 support:                      ${lzma} (requested) ${LIBLZMA_FOUND} (availability)")

message(STATUS "")

message(STATUS "  C++ support:                        ${cxx} (requested) ${CXX_SUPPORT} (availability)")

message(STATUS "")

# message(STATUS "  X Athena Widgets support:           ${HAVE_XAW}")

message(STATUS "  OpenGL support:                     ${HAVE_OPENGL}")

message(STATUS "")