CMakeLists.txt 25 KB
Newer Older
Kitware Robot's avatar
Kitware Robot committed
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
# 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()
# XXX(kitware): don't add to VTK's MSVC warning level
# 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})

Kitware Robot's avatar
Kitware Robot committed
184
185
# XXX(kitware): vtk does postfixes elsewhere.
if (FALSE)
Kitware Robot's avatar
Kitware Robot committed
186
187
188
if(MSVC)
    set(CMAKE_DEBUG_POSTFIX "d")
endif()
Kitware Robot's avatar
Kitware Robot committed
189
endif ()
Kitware Robot's avatar
Kitware Robot committed
190
191
192
193
194
195
196
197
198
199
200
201

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})
Kitware Robot's avatar
Kitware Robot committed
202
set(CMAKE_REQUIRED_FLAGS ${CMAKE_REQUIRED_FLAGS} "-Werror -Wl,--version-script=${CMAKE_CURRENT_BINARY_DIR}/conftest.map")
Kitware Robot's avatar
Kitware Robot committed
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
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)
  # 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})

# XXX(kitware): defer finding jpeg and zlib to vtk/thirdparty
#
set(zlib OFF) #explicitly turn off to override existing cached variables
set(jpeg OFF)
set(CMAKE_INSTALL_FULL_INCLUDEDIR "${VTK_INSTALL_INCLUDE_DIR}/vtktiff")
set(ZLIB_FOUND TRUE)
set(JPEG_FOUND TRUE)
set(ZLIB_LIBRARIES ${vtkzlib_LIBRARIES})
set(JPEG_LIBRARIES ${vtkjpeg_LIBRARIES})

# ZLIB
option(zlib "use zlib (required for Deflate compression)" OFF)
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)" OFF)
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)" OFF)
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)" OFF)
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)" OFF)
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)" OFF)
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()

# XXX(kitware): These options are never actually used, so disable them
# 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()

if (FALSE) # XXX(kitware): no need for a pkg-config file
# 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")
endif ()

# 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)
if (FALSE) # XXX(kitware): ignore non-source directories
add_subdirectory(tools)
add_subdirectory(test)
add_subdirectory(contrib)
add_subdirectory(build)
add_subdirectory(man)
add_subdirectory(html)
endif ()

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

# XXX(kitware): disabling noisy configures
# 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 "")