summaryrefslogtreecommitdiffstats
path: root/config/cmake_ext_mod/ConfigureChecks.cmake
blob: 33d4d6e9a8593ec71f761f527429a44056ddd788 (plain)
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
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
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
#
# Copyright by The HDF Group.
# All rights reserved.
#
# This file is part of HDF5.  The full HDF5 copyright notice, including
# terms governing use, modification, and redistribution, is contained in
# the COPYING file, which can be found at the root of the source code
# distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.
# If you do not have access to either file, you may request a copy from
# help@hdfgroup.org.
#
#-----------------------------------------------------------------------------
# Include all the necessary files for macros
#-----------------------------------------------------------------------------
include (CheckFunctionExists)
include (CheckIncludeFile)
include (CheckIncludeFiles)
include (CheckLibraryExists)
include (CheckSymbolExists)
include (CheckTypeSize)
include (CheckVariableExists)
include (TestBigEndian)
include (CheckStructHasMember)

#-----------------------------------------------------------------------------
# APPLE/Darwin setup
#-----------------------------------------------------------------------------
if (APPLE)
  list (LENGTH CMAKE_OSX_ARCHITECTURES ARCH_LENGTH)
  if (ARCH_LENGTH GREATER 1)
    set (CMAKE_OSX_ARCHITECTURES "" CACHE STRING "" FORCE)
    message (FATAL_ERROR "Building Universal Binaries on OS X is NOT supported by the HDF5 project. This is"
    "due to technical reasons. The best approach would be build each architecture in separate directories"
    "and use the 'lipo' tool to combine them into a single executable or library. The 'CMAKE_OSX_ARCHITECTURES'"
    "variable has been set to a blank value which will build the default architecture for this system.")
  endif ()
  set (${HDF_PREFIX}_AC_APPLE_UNIVERSAL_BUILD 0)
endif ()

# Check for Darwin (not just Apple - we also want to catch OpenDarwin)
if (${CMAKE_SYSTEM_NAME} MATCHES "Darwin")
    set (${HDF_PREFIX}_HAVE_DARWIN 1)
endif ()

# Check for Solaris
if (${CMAKE_SYSTEM_NAME} MATCHES "SunOS")
    set (${HDF_PREFIX}_HAVE_SOLARIS 1)
endif ()

#-----------------------------------------------------------------------------
# This MACRO checks IF the symbol exists in the library and IF it
# does, it appends library to the list.
#-----------------------------------------------------------------------------
set (LINK_LIBS "")
macro (CHECK_LIBRARY_EXISTS_CONCAT LIBRARY SYMBOL VARIABLE)
  CHECK_LIBRARY_EXISTS ("${LIBRARY};${LINK_LIBS}" ${SYMBOL} "" ${VARIABLE})
  if (${VARIABLE})
    set (LINK_LIBS ${LINK_LIBS} ${LIBRARY})
  endif ()
endmacro ()

# ----------------------------------------------------------------------
# WINDOWS Hard code Values
# ----------------------------------------------------------------------
set (WINDOWS)

if (MINGW)
  set (${HDF_PREFIX}_HAVE_MINGW 1)
  set (WINDOWS 1) # MinGW tries to imitate Windows
  set (CMAKE_REQUIRED_FLAGS "-DWIN32_LEAN_AND_MEAN=1 -DNOGDI=1")
  set (${HDF_PREFIX}_HAVE_WINSOCK2_H 1)
endif ()

if (WIN32 AND NOT MINGW)
  if (NOT UNIX)
    set (WINDOWS 1)
    set (CMAKE_REQUIRED_FLAGS "/DWIN32_LEAN_AND_MEAN=1 /DNOGDI=1")
    if (MSVC)
      set (${HDF_PREFIX}_HAVE_VISUAL_STUDIO 1)
    endif ()
  endif ()
endif ()

if (WINDOWS)
  set (HDF5_REQUIRED_LIBRARIES "ws2_32.lib;wsock32.lib")
  set (${HDF_PREFIX}_HAVE_WIN32_API 1)
  set (${HDF_PREFIX}_HAVE_LIBM 1)
  set (${HDF_PREFIX}_HAVE_STRDUP 1)
  set (${HDF_PREFIX}_HAVE_SYSTEM 1)
  set (${HDF_PREFIX}_HAVE_LONGJMP 1)
  if (NOT MINGW)
    set (${HDF_PREFIX}_HAVE_GETHOSTNAME 1)
    set (${HDF_PREFIX}_HAVE_FUNCTION 1)
  endif ()
  if (NOT UNIX AND NOT CYGWIN)
    set (${HDF_PREFIX}_HAVE_GETCONSOLESCREENBUFFERINFO 1)
    set (${HDF_PREFIX}_GETTIMEOFDAY_GIVES_TZ 1)
    set (${HDF_PREFIX}_HAVE_TIMEZONE 1)
    set (${HDF_PREFIX}_HAVE_GETTIMEOFDAY 1)
    set (${HDF_PREFIX}_HAVE_LIBWS2_32 1)
    set (${HDF_PREFIX}_HAVE_LIBWSOCK32 1)
  endif ()
endif ()

# ----------------------------------------------------------------------
# END of WINDOWS Hard code Values
# ----------------------------------------------------------------------

if (NOT WINDOWS)
  TEST_BIG_ENDIAN (${HDF_PREFIX}_WORDS_BIGENDIAN)
endif ()

#-----------------------------------------------------------------------------
# Check IF header file exists and add it to the list.
#-----------------------------------------------------------------------------
macro (CHECK_INCLUDE_FILE_CONCAT FILE VARIABLE)
  CHECK_INCLUDE_FILES ("${USE_INCLUDES};${FILE}" ${VARIABLE})
  if (${VARIABLE})
    set (USE_INCLUDES ${USE_INCLUDES} ${FILE})
  endif ()
endmacro ()

#-----------------------------------------------------------------------------
#  Check for the existence of certain header files
#-----------------------------------------------------------------------------
CHECK_INCLUDE_FILE_CONCAT ("sys/file.h"      ${HDF_PREFIX}_HAVE_SYS_FILE_H)
CHECK_INCLUDE_FILE_CONCAT ("sys/ioctl.h"     ${HDF_PREFIX}_HAVE_SYS_IOCTL_H)
CHECK_INCLUDE_FILE_CONCAT ("sys/resource.h"  ${HDF_PREFIX}_HAVE_SYS_RESOURCE_H)
CHECK_INCLUDE_FILE_CONCAT ("sys/socket.h"    ${HDF_PREFIX}_HAVE_SYS_SOCKET_H)
CHECK_INCLUDE_FILE_CONCAT ("sys/stat.h"      ${HDF_PREFIX}_HAVE_SYS_STAT_H)
CHECK_INCLUDE_FILE_CONCAT ("sys/time.h"      ${HDF_PREFIX}_HAVE_SYS_TIME_H)
CHECK_INCLUDE_FILE_CONCAT ("sys/types.h"     ${HDF_PREFIX}_HAVE_SYS_TYPES_H)
CHECK_INCLUDE_FILE_CONCAT ("features.h"      ${HDF_PREFIX}_HAVE_FEATURES_H)
CHECK_INCLUDE_FILE_CONCAT ("dirent.h"        ${HDF_PREFIX}_HAVE_DIRENT_H)
CHECK_INCLUDE_FILE_CONCAT ("setjmp.h"        ${HDF_PREFIX}_HAVE_SETJMP_H)
CHECK_INCLUDE_FILE_CONCAT ("stddef.h"        ${HDF_PREFIX}_HAVE_STDDEF_H)
CHECK_INCLUDE_FILE_CONCAT ("stdint.h"        ${HDF_PREFIX}_HAVE_STDINT_H)
CHECK_INCLUDE_FILE_CONCAT ("unistd.h"        ${HDF_PREFIX}_HAVE_UNISTD_H)

# Darwin
CHECK_INCLUDE_FILE_CONCAT ("mach/mach_time.h" ${HDF_PREFIX}_HAVE_MACH_MACH_TIME_H)

# Windows
CHECK_INCLUDE_FILE_CONCAT ("io.h"            ${HDF_PREFIX}_HAVE_IO_H)
if (NOT CYGWIN)
  CHECK_INCLUDE_FILE_CONCAT ("winsock2.h"      ${HDF_PREFIX}_HAVE_WINSOCK2_H)
endif ()
CHECK_INCLUDE_FILE_CONCAT ("sys/timeb.h"     ${HDF_PREFIX}_HAVE_SYS_TIMEB_H)

if (CMAKE_SYSTEM_NAME MATCHES "OSF")
  CHECK_INCLUDE_FILE_CONCAT ("sys/sysinfo.h" ${HDF_PREFIX}_HAVE_SYS_SYSINFO_H)
  CHECK_INCLUDE_FILE_CONCAT ("sys/proc.h"    ${HDF_PREFIX}_HAVE_SYS_PROC_H)
else ()
  set (${HDF_PREFIX}_HAVE_SYS_SYSINFO_H "" CACHE INTERNAL "" FORCE)
  set (${HDF_PREFIX}_HAVE_SYS_PROC_H    "" CACHE INTERNAL "" FORCE)
endif ()

CHECK_INCLUDE_FILE_CONCAT ("globus/common.h" ${HDF_PREFIX}_HAVE_GLOBUS_COMMON_H)
CHECK_INCLUDE_FILE_CONCAT ("pdb.h"           ${HDF_PREFIX}_HAVE_PDB_H)
CHECK_INCLUDE_FILE_CONCAT ("pthread.h"       ${HDF_PREFIX}_HAVE_PTHREAD_H)
CHECK_INCLUDE_FILE_CONCAT ("srbclient.h"     ${HDF_PREFIX}_HAVE_SRBCLIENT_H)
CHECK_INCLUDE_FILE_CONCAT ("string.h"        ${HDF_PREFIX}_HAVE_STRING_H)
CHECK_INCLUDE_FILE_CONCAT ("strings.h"       ${HDF_PREFIX}_HAVE_STRINGS_H)
CHECK_INCLUDE_FILE_CONCAT ("stdlib.h"        ${HDF_PREFIX}_HAVE_STDLIB_H)
CHECK_INCLUDE_FILE_CONCAT ("memory.h"        ${HDF_PREFIX}_HAVE_MEMORY_H)
CHECK_INCLUDE_FILE_CONCAT ("dlfcn.h"         ${HDF_PREFIX}_HAVE_DLFCN_H)
CHECK_INCLUDE_FILE_CONCAT ("inttypes.h"      ${HDF_PREFIX}_HAVE_INTTYPES_H)
CHECK_INCLUDE_FILE_CONCAT ("netinet/in.h"    ${HDF_PREFIX}_HAVE_NETINET_IN_H)
# _Bool type support
CHECK_INCLUDE_FILE_CONCAT (stdbool.h    ${HDF_PREFIX}_HAVE_STDBOOL_H)

## Check for non-standard extenstion quadmath.h

CHECK_INCLUDE_FILES(quadmath.h C_HAVE_QUADMATH)
if (${C_HAVE_QUADMATH})
  set(${HDF_PREFIX}_HAVE_QUADMATH_H 1)
else ()
  set(${HDF_PREFIX}_HAVE_QUADMATH_H 0)
endif ()

if (CYGWIN)
  set (${HDF_PREFIX}_HAVE_LSEEK64 0)
endif ()

#-----------------------------------------------------------------------------
#  Check for the math library "m"
#-----------------------------------------------------------------------------
if (MINGW OR NOT WINDOWS)
  CHECK_LIBRARY_EXISTS_CONCAT ("m" ceil     ${HDF_PREFIX}_HAVE_LIBM)
  CHECK_LIBRARY_EXISTS_CONCAT ("dl" dlopen     ${HDF_PREFIX}_HAVE_LIBDL)
  CHECK_LIBRARY_EXISTS_CONCAT ("ws2_32" WSAStartup  ${HDF_PREFIX}_HAVE_LIBWS2_32)
  CHECK_LIBRARY_EXISTS_CONCAT ("wsock32" gethostbyname ${HDF_PREFIX}_HAVE_LIBWSOCK32)
endif ()

# UCB (BSD) compatibility library
CHECK_LIBRARY_EXISTS_CONCAT ("ucb"    gethostname  ${HDF_PREFIX}_HAVE_LIBUCB)

# For other tests to use the same libraries
set (HDF5_REQUIRED_LIBRARIES ${HDF5_REQUIRED_LIBRARIES} ${LINK_LIBS})

set (USE_INCLUDES "")
if (WINDOWS)
  set (USE_INCLUDES ${USE_INCLUDES} "windows.h")
endif ()

# For other specific tests, use this MACRO.
macro (HDF_FUNCTION_TEST OTHER_TEST)
  if (NOT DEFINED ${HDF_PREFIX}_${OTHER_TEST})
    set (MACRO_CHECK_FUNCTION_DEFINITIONS "-D${OTHER_TEST} ${CMAKE_REQUIRED_FLAGS}")

    foreach (def
        HAVE_SYS_TIME_H
        HAVE_UNISTD_H
        HAVE_SYS_TYPES_H
        HAVE_SYS_SOCKET_H
    )
      if ("${${HDF_PREFIX}_${def}}")
        set (MACRO_CHECK_FUNCTION_DEFINITIONS "${MACRO_CHECK_FUNCTION_DEFINITIONS} -D${def}")
      endif ()
    endforeach ()

    if (LARGEFILE)
      set (MACRO_CHECK_FUNCTION_DEFINITIONS
          "${MACRO_CHECK_FUNCTION_DEFINITIONS} -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE"
      )
    endif ()

    #message (STATUS "Performing ${OTHER_TEST}")
    try_compile (${OTHER_TEST}
        ${CMAKE_BINARY_DIR}
        ${HDF_RESOURCES_EXT_DIR}/HDFTests.c
        COMPILE_DEFINITIONS "${MACRO_CHECK_FUNCTION_DEFINITIONS}"
        LINK_LIBRARIES "${HDF5_REQUIRED_LIBRARIES}"
        OUTPUT_VARIABLE OUTPUT
    )
    if (${OTHER_TEST})
      set (${HDF_PREFIX}_${OTHER_TEST} 1 CACHE INTERNAL "Other test ${FUNCTION}")
      message (STATUS "Performing Other Test ${OTHER_TEST} - Success")
    else ()
      message (STATUS "Performing Other Test ${OTHER_TEST} - Failed")
      set (${HDF_PREFIX}_${OTHER_TEST} "" CACHE INTERNAL "Other test ${FUNCTION}")
      file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
          "Performing Other Test ${OTHER_TEST} failed with the following output:\n"
          "${OUTPUT}\n"
      )
    endif ()
  endif ()
endmacro ()

#-----------------------------------------------------------------------------
# Check for these functions before the time headers are checked
#-----------------------------------------------------------------------------
HDF_FUNCTION_TEST (STDC_HEADERS)

#-----------------------------------------------------------------------------
#  Check for large file support
#-----------------------------------------------------------------------------

# The linux-lfs option is deprecated.
set (LINUX_LFS 0)

set (HDF_EXTRA_C_FLAGS)
set (HDF_EXTRA_FLAGS)
if (MINGW OR NOT WINDOWS)
  # Might want to check explicitly for Linux and possibly Cygwin
  # instead of checking for not Solaris or Darwin.
  if (NOT ${HDF_PREFIX}_HAVE_SOLARIS AND NOT ${HDF_PREFIX}_HAVE_DARWIN)
  # Linux Specific flags
  # This was originally defined as _POSIX_SOURCE which was updated to
  # _POSIX_C_SOURCE=199506L to expose a greater amount of POSIX
  # functionality so clock_gettime and CLOCK_MONOTONIC are defined
  # correctly. This was later updated to 200112L so that
  # posix_memalign() is visible for the direct VFD code on Linux
  # systems.
  # POSIX feature information can be found in the gcc manual at:
  # http://www.gnu.org/s/libc/manual/html_node/Feature-Test-Macros.html
  set (HDF_EXTRA_C_FLAGS -D_POSIX_C_SOURCE=200112L)

  # Need to add this so that O_DIRECT is visible for the direct
  # VFD on Linux systems.
  set (HDF_EXTRA_C_FLAGS -D_GNU_SOURCE)

  option (HDF_ENABLE_LARGE_FILE "Enable support for large (64-bit) files on Linux." ON)
  if (HDF_ENABLE_LARGE_FILE AND NOT DEFINED TEST_LFS_WORKS_RUN)
    set (msg "Performing TEST_LFS_WORKS")
    try_run (TEST_LFS_WORKS_RUN   TEST_LFS_WORKS_COMPILE
        ${CMAKE_BINARY_DIR}
        ${HDF_RESOURCES_EXT_DIR}/HDFTests.c
        COMPILE_DEFINITIONS "-DTEST_LFS_WORKS"
    )

    # The LARGEFILE definitions were from the transition period
    # and are probably no longer needed. The FILE_OFFSET_BITS
    # check should be generalized for all POSIX systems as it
    # is in the Autotools.
    if (TEST_LFS_WORKS_COMPILE)
      if (TEST_LFS_WORKS_RUN MATCHES 0)
        set (TEST_LFS_WORKS 1 CACHE INTERNAL ${msg})
        set (LARGEFILE 1)
        set (HDF_EXTRA_FLAGS ${HDF_EXTRA_FLAGS} -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE)
        message (STATUS "${msg}... yes")
      else ()
        set (TEST_LFS_WORKS "" CACHE INTERNAL ${msg})
        message (STATUS "${msg}... no")
        file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
              "Test TEST_LFS_WORKS Run failed with the following exit code:\n ${TEST_LFS_WORKS_RUN}\n"
        )
      endif ()
    else ()
      set (TEST_LFS_WORKS "" CACHE INTERNAL ${msg})
      message (STATUS "${msg}... no")
      file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
          "Test TEST_LFS_WORKS Compile failed\n"
      )
    endif ()
  endif ()
  set (CMAKE_REQUIRED_DEFINITIONS ${CMAKE_REQUIRED_DEFINITIONS} ${HDF_EXTRA_FLAGS})
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Check for HAVE_OFF64_T functionality
#-----------------------------------------------------------------------------
if (MINGW OR NOT WINDOWS)
  HDF_FUNCTION_TEST (HAVE_OFF64_T)
  if (${HDF_PREFIX}_HAVE_OFF64_T)
    CHECK_FUNCTION_EXISTS (lseek64            ${HDF_PREFIX}_HAVE_LSEEK64)
  endif ()

  CHECK_FUNCTION_EXISTS (fseeko               ${HDF_PREFIX}_HAVE_FSEEKO)

  CHECK_STRUCT_HAS_MEMBER("struct stat64" st_blocks "sys/types.h;sys/stat.h" HAVE_STAT64_STRUCT)
  if (HAVE_STAT64_STRUCT)
    CHECK_FUNCTION_EXISTS (stat64             ${HDF_PREFIX}_HAVE_STAT64)
  endif ()
endif ()

#-----------------------------------------------------------------------------
#  Check the size in bytes of all the int and float types
#-----------------------------------------------------------------------------
macro (HDF_CHECK_TYPE_SIZE type var)
  set (aType ${type})
  set (aVar  ${var})
#  message (STATUS "Checking size of ${aType} and storing into ${aVar}")
  CHECK_TYPE_SIZE (${aType}   ${aVar})
  if (NOT ${aVar})
    set (${aVar} 0 CACHE INTERNAL "SizeOf for ${aType}")
#    message (STATUS "Size of ${aType} was NOT Found")
  endif ()
endmacro ()

HDF_CHECK_TYPE_SIZE (char           ${HDF_PREFIX}_SIZEOF_CHAR)
HDF_CHECK_TYPE_SIZE (short          ${HDF_PREFIX}_SIZEOF_SHORT)
HDF_CHECK_TYPE_SIZE (int            ${HDF_PREFIX}_SIZEOF_INT)
HDF_CHECK_TYPE_SIZE (unsigned       ${HDF_PREFIX}_SIZEOF_UNSIGNED)
if (NOT APPLE)
  HDF_CHECK_TYPE_SIZE (long         ${HDF_PREFIX}_SIZEOF_LONG)
endif ()
HDF_CHECK_TYPE_SIZE ("long long"    ${HDF_PREFIX}_SIZEOF_LONG_LONG)
HDF_CHECK_TYPE_SIZE (__int64        ${HDF_PREFIX}_SIZEOF___INT64)
if (NOT ${HDF_PREFIX}_SIZEOF___INT64)
  set (${HDF_PREFIX}_SIZEOF___INT64 0)
endif ()

HDF_CHECK_TYPE_SIZE (float          ${HDF_PREFIX}_SIZEOF_FLOAT)
HDF_CHECK_TYPE_SIZE (double         ${HDF_PREFIX}_SIZEOF_DOUBLE)
HDF_CHECK_TYPE_SIZE ("long double"  ${HDF_PREFIX}_SIZEOF_LONG_DOUBLE)

HDF_CHECK_TYPE_SIZE (int8_t         ${HDF_PREFIX}_SIZEOF_INT8_T)
HDF_CHECK_TYPE_SIZE (uint8_t        ${HDF_PREFIX}_SIZEOF_UINT8_T)
HDF_CHECK_TYPE_SIZE (int_least8_t   ${HDF_PREFIX}_SIZEOF_INT_LEAST8_T)
HDF_CHECK_TYPE_SIZE (uint_least8_t  ${HDF_PREFIX}_SIZEOF_UINT_LEAST8_T)
HDF_CHECK_TYPE_SIZE (int_fast8_t    ${HDF_PREFIX}_SIZEOF_INT_FAST8_T)
HDF_CHECK_TYPE_SIZE (uint_fast8_t   ${HDF_PREFIX}_SIZEOF_UINT_FAST8_T)

HDF_CHECK_TYPE_SIZE (int16_t        ${HDF_PREFIX}_SIZEOF_INT16_T)
HDF_CHECK_TYPE_SIZE (uint16_t       ${HDF_PREFIX}_SIZEOF_UINT16_T)
HDF_CHECK_TYPE_SIZE (int_least16_t  ${HDF_PREFIX}_SIZEOF_INT_LEAST16_T)
HDF_CHECK_TYPE_SIZE (uint_least16_t ${HDF_PREFIX}_SIZEOF_UINT_LEAST16_T)
HDF_CHECK_TYPE_SIZE (int_fast16_t   ${HDF_PREFIX}_SIZEOF_INT_FAST16_T)
HDF_CHECK_TYPE_SIZE (uint_fast16_t  ${HDF_PREFIX}_SIZEOF_UINT_FAST16_T)

HDF_CHECK_TYPE_SIZE (int32_t        ${HDF_PREFIX}_SIZEOF_INT32_T)
HDF_CHECK_TYPE_SIZE (uint32_t       ${HDF_PREFIX}_SIZEOF_UINT32_T)
HDF_CHECK_TYPE_SIZE (int_least32_t  ${HDF_PREFIX}_SIZEOF_INT_LEAST32_T)
HDF_CHECK_TYPE_SIZE (uint_least32_t ${HDF_PREFIX}_SIZEOF_UINT_LEAST32_T)
HDF_CHECK_TYPE_SIZE (int_fast32_t   ${HDF_PREFIX}_SIZEOF_INT_FAST32_T)
HDF_CHECK_TYPE_SIZE (uint_fast32_t  ${HDF_PREFIX}_SIZEOF_UINT_FAST32_T)

HDF_CHECK_TYPE_SIZE (int64_t        ${HDF_PREFIX}_SIZEOF_INT64_T)
HDF_CHECK_TYPE_SIZE (uint64_t       ${HDF_PREFIX}_SIZEOF_UINT64_T)
HDF_CHECK_TYPE_SIZE (int_least64_t  ${HDF_PREFIX}_SIZEOF_INT_LEAST64_T)
HDF_CHECK_TYPE_SIZE (uint_least64_t ${HDF_PREFIX}_SIZEOF_UINT_LEAST64_T)
HDF_CHECK_TYPE_SIZE (int_fast64_t   ${HDF_PREFIX}_SIZEOF_INT_FAST64_T)
HDF_CHECK_TYPE_SIZE (uint_fast64_t  ${HDF_PREFIX}_SIZEOF_UINT_FAST64_T)

if (NOT APPLE)
  HDF_CHECK_TYPE_SIZE (size_t       ${HDF_PREFIX}_SIZEOF_SIZE_T)
  HDF_CHECK_TYPE_SIZE (ssize_t      ${HDF_PREFIX}_SIZEOF_SSIZE_T)
  if (NOT ${HDF_PREFIX}_SIZEOF_SSIZE_T)
    set (${HDF_PREFIX}_SIZEOF_SSIZE_T 0)
  endif ()
  if (MINGW OR NOT WINDOWS)
    HDF_CHECK_TYPE_SIZE (ptrdiff_t    ${HDF_PREFIX}_SIZEOF_PTRDIFF_T)
  endif ()
endif ()

HDF_CHECK_TYPE_SIZE (off_t          ${HDF_PREFIX}_SIZEOF_OFF_T)
HDF_CHECK_TYPE_SIZE (off64_t        ${HDF_PREFIX}_SIZEOF_OFF64_T)
if (NOT ${HDF_PREFIX}_SIZEOF_OFF64_T)
  set (${HDF_PREFIX}_SIZEOF_OFF64_T 0)
endif ()
HDF_CHECK_TYPE_SIZE (time_t          ${HDF_PREFIX}_SIZEOF_TIME_T)

#-----------------------------------------------------------------------------
# Extra C99 types
#-----------------------------------------------------------------------------

# _Bool type support
if (HAVE_STDBOOL_H)
  set (CMAKE_EXTRA_INCLUDE_FILES stdbool.h)
  HDF_CHECK_TYPE_SIZE (bool         ${HDF_PREFIX}_SIZEOF_BOOL)
else ()
  HDF_CHECK_TYPE_SIZE (_Bool        ${HDF_PREFIX}_SIZEOF_BOOL)
endif ()

if (MINGW OR NOT WINDOWS)
  #-----------------------------------------------------------------------------
  # Check if the dev_t type is a scalar type
  #-----------------------------------------------------------------------------
  HDF_FUNCTION_TEST (DEV_T_IS_SCALAR)

  # ----------------------------------------------------------------------
  # Check for MONOTONIC_TIMER support (used in clock_gettime).  This has
  # to be done after any POSIX/BSD defines to ensure that the test gets
  # the correct POSIX level on linux.
  CHECK_VARIABLE_EXISTS (CLOCK_MONOTONIC HAVE_CLOCK_MONOTONIC)

  #-----------------------------------------------------------------------------
  # Check a bunch of time functions
  #-----------------------------------------------------------------------------
  CHECK_STRUCT_HAS_MEMBER("struct tm" tm_gmtoff "time.h" ${HDF_PREFIX}_HAVE_TM_GMTOFF)
  CHECK_STRUCT_HAS_MEMBER("struct tm" __tm_gmtoff "time.h" ${HDF_PREFIX}_HAVE___TM_GMTOFF)
  CHECK_STRUCT_HAS_MEMBER("struct tm" tm_sec "sys/types.h;sys/time.h;time.h" ${HDF_PREFIX}_TIME_WITH_SYS_TIME)
  if (${HDF_PREFIX}_HAVE_SYS_TIME_H)
    CHECK_STRUCT_HAS_MEMBER("struct tm" tz_minuteswest "sys/types.h;sys/time.h;time.h" ${HDF_PREFIX}_HAVE_STRUCT_TIMEZONE)
  else ()
    CHECK_STRUCT_HAS_MEMBER("struct tm" tz_minuteswest "sys/types.h;time.h" ${HDF_PREFIX}_HAVE_STRUCT_TIMEZONE)
  endif ()
  CHECK_FUNCTION_EXISTS (gettimeofday      ${HDF_PREFIX}_HAVE_GETTIMEOFDAY)
  foreach (time_test
#      HAVE_TIMEZONE
      GETTIMEOFDAY_GIVES_TZ
      HAVE_TM_ZONE
      HAVE_STRUCT_TM_TM_ZONE
  )
    HDF_FUNCTION_TEST (${time_test})
  endforeach ()
  if (NOT CYGWIN AND NOT MINGW)
      HDF_FUNCTION_TEST (HAVE_TIMEZONE)
  endif ()

  # ----------------------------------------------------------------------
  # Does the struct stat have the st_blocks field?  This field is not Posix.
  #
  CHECK_STRUCT_HAS_MEMBER("struct stat" st_blocks "sys/types.h;sys/stat.h" ${HDF_PREFIX}_HAVE_STAT_ST_BLOCKS)

  # ----------------------------------------------------------------------
  # How do we figure out the width of a tty in characters?
  #
  CHECK_FUNCTION_EXISTS (ioctl             ${HDF_PREFIX}_HAVE_IOCTL)
  CHECK_STRUCT_HAS_MEMBER ("struct videoconfig" numtextcols "" ${HDF_PREFIX}_HAVE_STRUCT_VIDEOCONFIG)
  CHECK_STRUCT_HAS_MEMBER ("struct text_info" screenwidth "" ${HDF_PREFIX}_HAVE_STRUCT_TEXT_INFO)
  CHECK_FUNCTION_EXISTS (_getvideoconfig   ${HDF_PREFIX}_HAVE__GETVIDEOCONFIG)
  CHECK_FUNCTION_EXISTS (gettextinfo       ${HDF_PREFIX}_HAVE_GETTEXTINFO)
  CHECK_FUNCTION_EXISTS (_scrsize          ${HDF_PREFIX}_HAVE__SCRSIZE)
  if (NOT CYGWIN)
    CHECK_FUNCTION_EXISTS (GetConsoleScreenBufferInfo    ${HDF_PREFIX}_HAVE_GETCONSOLESCREENBUFFERINFO)
  endif ()
  CHECK_SYMBOL_EXISTS (TIOCGWINSZ "sys/ioctl.h" ${HDF_PREFIX}_HAVE_TIOCGWINSZ)
  CHECK_SYMBOL_EXISTS (TIOCGETD   "sys/ioctl.h" ${HDF_PREFIX}_HAVE_TIOCGETD)

  # ----------------------------------------------------------------------
  # cygwin user credentials are different then on linux
  #
  if (NOT CYGWIN AND NOT MINGW)
    CHECK_FUNCTION_EXISTS (getpwuid        ${HDF_PREFIX}_HAVE_GETPWUID)
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Check for some functions that are used
#
CHECK_FUNCTION_EXISTS (alarm             ${HDF_PREFIX}_HAVE_ALARM)
CHECK_FUNCTION_EXISTS (fcntl             ${HDF_PREFIX}_HAVE_FCNTL)
CHECK_FUNCTION_EXISTS (flock             ${HDF_PREFIX}_HAVE_FLOCK)
CHECK_FUNCTION_EXISTS (fork              ${HDF_PREFIX}_HAVE_FORK)
CHECK_FUNCTION_EXISTS (frexpf            ${HDF_PREFIX}_HAVE_FREXPF)
CHECK_FUNCTION_EXISTS (frexpl            ${HDF_PREFIX}_HAVE_FREXPL)

CHECK_FUNCTION_EXISTS (gethostname       ${HDF_PREFIX}_HAVE_GETHOSTNAME)
CHECK_FUNCTION_EXISTS (getrusage         ${HDF_PREFIX}_HAVE_GETRUSAGE)
CHECK_FUNCTION_EXISTS (llround           ${HDF_PREFIX}_HAVE_LLROUND)
CHECK_FUNCTION_EXISTS (llroundf          ${HDF_PREFIX}_HAVE_LLROUNDF)
CHECK_FUNCTION_EXISTS (lround            ${HDF_PREFIX}_HAVE_LROUND)
CHECK_FUNCTION_EXISTS (lroundf           ${HDF_PREFIX}_HAVE_LROUNDF)
CHECK_FUNCTION_EXISTS (lstat             ${HDF_PREFIX}_HAVE_LSTAT)

CHECK_FUNCTION_EXISTS (pread             ${HDF_PREFIX}_HAVE_PREAD)
CHECK_FUNCTION_EXISTS (pwrite            ${HDF_PREFIX}_HAVE_PWRITE)
CHECK_FUNCTION_EXISTS (rand_r            ${HDF_PREFIX}_HAVE_RAND_R)
CHECK_FUNCTION_EXISTS (random            ${HDF_PREFIX}_HAVE_RANDOM)
CHECK_FUNCTION_EXISTS (round             ${HDF_PREFIX}_HAVE_ROUND)
CHECK_FUNCTION_EXISTS (roundf            ${HDF_PREFIX}_HAVE_ROUNDF)
CHECK_FUNCTION_EXISTS (setsysinfo        ${HDF_PREFIX}_HAVE_SETSYSINFO)

CHECK_FUNCTION_EXISTS (signal            ${HDF_PREFIX}_HAVE_SIGNAL)
CHECK_FUNCTION_EXISTS (longjmp           ${HDF_PREFIX}_HAVE_LONGJMP)
CHECK_FUNCTION_EXISTS (setjmp            ${HDF_PREFIX}_HAVE_SETJMP)
CHECK_FUNCTION_EXISTS (siglongjmp        ${HDF_PREFIX}_HAVE_SIGLONGJMP)
CHECK_FUNCTION_EXISTS (sigsetjmp         ${HDF_PREFIX}_HAVE_SIGSETJMP)
CHECK_FUNCTION_EXISTS (sigprocmask       ${HDF_PREFIX}_HAVE_SIGPROCMASK)

CHECK_FUNCTION_EXISTS (snprintf          ${HDF_PREFIX}_HAVE_SNPRINTF)
CHECK_FUNCTION_EXISTS (srandom           ${HDF_PREFIX}_HAVE_SRANDOM)
CHECK_FUNCTION_EXISTS (strdup            ${HDF_PREFIX}_HAVE_STRDUP)
CHECK_FUNCTION_EXISTS (strtoll           ${HDF_PREFIX}_HAVE_STRTOLL)
CHECK_FUNCTION_EXISTS (strtoull          ${HDF_PREFIX}_HAVE_STRTOULL)
CHECK_FUNCTION_EXISTS (symlink           ${HDF_PREFIX}_HAVE_SYMLINK)
CHECK_FUNCTION_EXISTS (system            ${HDF_PREFIX}_HAVE_SYSTEM)

CHECK_FUNCTION_EXISTS (tmpfile           ${HDF_PREFIX}_HAVE_TMPFILE)
CHECK_FUNCTION_EXISTS (asprintf          ${HDF_PREFIX}_HAVE_ASPRINTF)
CHECK_FUNCTION_EXISTS (vasprintf         ${HDF_PREFIX}_HAVE_VASPRINTF)
CHECK_FUNCTION_EXISTS (waitpid           ${HDF_PREFIX}_HAVE_WAITPID)

CHECK_FUNCTION_EXISTS (vsnprintf         ${HDF_PREFIX}_HAVE_VSNPRINTF)
if (MINGW OR NOT WINDOWS)
  if (${HDF_PREFIX}_HAVE_VSNPRINTF)
    HDF_FUNCTION_TEST (VSNPRINTF_WORKS)
  endif ()
endif ()

#-----------------------------------------------------------------------------
# sigsetjmp is special; may actually be a macro
#-----------------------------------------------------------------------------
if (NOT ${HDF_PREFIX}_HAVE_SIGSETJMP)
  if (${HDF_PREFIX}_HAVE_SETJMP_H)
    CHECK_SYMBOL_EXISTS (sigsetjmp "setjmp.h" ${HDF_PREFIX}_HAVE_MACRO_SIGSETJMP)
    if (${HDF_PREFIX}_HAVE_MACRO_SIGSETJMP)
      set (${HDF_PREFIX}_HAVE_SIGSETJMP 1)
    endif ()
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Check a bunch of other functions
#-----------------------------------------------------------------------------
if (MINGW OR NOT WINDOWS)
  foreach (other_test
      HAVE_ATTRIBUTE
      HAVE_C99_FUNC
#      STDC_HEADERS
      HAVE_FUNCTION
      HAVE_C99_DESIGNATED_INITIALIZER
      SYSTEM_SCOPE_THREADS
      HAVE_SOCKLEN_T
  )
    HDF_FUNCTION_TEST (${other_test})
  endforeach ()
endif ()

#-----------------------------------------------------------------------------
# Check if InitOnceExecuteOnce is available
#-----------------------------------------------------------------------------
if (WINDOWS)
  if (NOT HDF_NO_IOEO_TEST)
  message (STATUS "Checking for InitOnceExecuteOnce:")
  if (NOT DEFINED ${HDF_PREFIX}_HAVE_IOEO)
    if (LARGEFILE)
      set (CMAKE_REQUIRED_DEFINITIONS
          "${CURRENT_TEST_DEFINITIONS} -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE"
      )
    endif ()
    set (MACRO_CHECK_FUNCTION_DEFINITIONS "-DHAVE_IOEO ${CMAKE_REQUIRED_FLAGS}")
    if (CMAKE_REQUIRED_INCLUDES)
      set (CHECK_C_SOURCE_COMPILES_ADD_INCLUDES "-DINCLUDE_DIRECTORIES:STRING=${CMAKE_REQUIRED_INCLUDES}")
    else ()
      set (CHECK_C_SOURCE_COMPILES_ADD_INCLUDES)
    endif ()

    TRY_RUN(HAVE_IOEO_EXITCODE HAVE_IOEO_COMPILED
        ${CMAKE_BINARY_DIR}
        ${HDF_RESOURCES_EXT_DIR}/HDFTests.c
        COMPILE_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} ${MACRO_CHECK_FUNCTION_DEFINITIONS}"
        LINK_LIBRARIES "${HDF5_REQUIRED_LIBRARIES}"
        CMAKE_FLAGS "${CHECK_C_SOURCE_COMPILES_ADD_INCLUDES} -DCMAKE_SKIP_RPATH:BOOL=${CMAKE_SKIP_RPATH}"
        COMPILE_OUTPUT_VARIABLE OUTPUT
    )
    # if it did not compile make the return value fail code of 1
    if (NOT HAVE_IOEO_COMPILED)
      set (HAVE_IOEO_EXITCODE 1)
    endif ()
    # if the return value was 0 then it worked
    if ("${HAVE_IOEO_EXITCODE}" EQUAL 0)
      set (${HDF_PREFIX}_HAVE_IOEO 1 CACHE INTERNAL "Test InitOnceExecuteOnce")
      message (STATUS "Performing Test InitOnceExecuteOnce - Success")
      file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeOutput.log
        "Performing C SOURCE FILE Test InitOnceExecuteOnce succeded with the following output:\n"
        "${OUTPUT}\n"
        "Return value: ${HAVE_IOEO}\n")
    else ()
      if (CMAKE_CROSSCOMPILING AND "${HAVE_IOEO_EXITCODE}" MATCHES  "FAILED_TO_RUN")
        set (${HDF_PREFIX}_HAVE_IOEO "${HAVE_IOEO_EXITCODE}")
      else ()
        set (${HDF_PREFIX}_HAVE_IOEO "" CACHE INTERNAL "Test InitOnceExecuteOnce")
      endif ()

      message (STATUS "Performing Test InitOnceExecuteOnce - Failed")
      file (APPEND ${CMAKE_BINARY_DIR}${CMAKE_FILES_DIRECTORY}/CMakeError.log
        "Performing InitOnceExecuteOnce Test  failed with the following output:\n"
        "${OUTPUT}\n"
        "Return value: ${HAVE_IOEO_EXITCODE}\n")
    endif ()
  endif ()
  endif ()
endif ()

#-----------------------------------------------------------------------------
# Determine how 'inline' is used
#-----------------------------------------------------------------------------
foreach (inline_test inline __inline__ __inline)
  string (TOUPPER ${inline_test} INLINE_TEST_MACRO)
  HDF_FUNCTION_TEST (HAVE_${INLINE_TEST_MACRO})
endforeach ()

#-----------------------------------------------------------------------------
# Check how to print a Long Long integer
#-----------------------------------------------------------------------------
if (NOT ${HDF_PREFIX}_PRINTF_LL_WIDTH OR ${HDF_PREFIX}_PRINTF_LL_WIDTH MATCHES "unknown")
  set (PRINT_LL_FOUND 0)
  message (STATUS "Checking for appropriate format for 64 bit long:")
  set (CURRENT_TEST_DEFINITIONS "-DPRINTF_LL_WIDTH")
  if (${HDF_PREFIX}_SIZEOF_LONG_LONG)
    set (CURRENT_TEST_DEFINITIONS "${CURRENT_TEST_DEFINITIONS} -DHAVE_LONG_LONG")
  endif ()
  TRY_RUN (${HDF_PREFIX}_PRINTF_LL_TEST_RUN   ${HDF_PREFIX}_PRINTF_LL_TEST_COMPILE
      ${CMAKE_BINARY_DIR}
      ${HDF_RESOURCES_EXT_DIR}/HDFTests.c
      COMPILE_DEFINITIONS "${CURRENT_TEST_DEFINITIONS}"
      RUN_OUTPUT_VARIABLE OUTPUT
  )
  if (${HDF_PREFIX}_PRINTF_LL_TEST_COMPILE)
    if (${HDF_PREFIX}_PRINTF_LL_TEST_RUN MATCHES 0)
      string(REGEX REPLACE ".*PRINTF_LL_WIDTH=\\[(.*)\\].*" "\\1" ${HDF_PREFIX}_PRINTF_LL "${OUTPUT}")
      set (${HDF_PREFIX}_PRINTF_LL_WIDTH "\"${${HDF_PREFIX}_PRINTF_LL}\"" CACHE INTERNAL "Width for printf for type `long long' or `__int64', us. `ll")
      set (PRINT_LL_FOUND 1)
    else ()
      message (STATUS "Width test failed with result: ${${HDF_PREFIX}_PRINTF_LL_TEST_RUN}")
    endif ()
  else ()
    file (APPEND ${CMAKE_BINARY_DIR}/CMakeFiles/CMakeError.log
        "Test ${HDF_PREFIX}_PRINTF_LL_WIDTH failed\n"
    )
  endif ()

  if (PRINT_LL_FOUND)
    message (STATUS "Checking for appropriate format for 64 bit long: found ${${HDF_PREFIX}_PRINTF_LL_WIDTH}")
  else ()
    message (STATUS "Checking for appropriate format for 64 bit long: not found")
    set (${HDF_PREFIX}_PRINTF_LL_WIDTH "\"unknown\"" CACHE INTERNAL
        "Width for printf for type `long long' or `__int64', us. `ll"
    )
  endif ()
endif ()

# ----------------------------------------------------------------------
# Set the flag to indicate that the machine can handle converting
# denormalized floating-point values.
# (This flag should be set for all machines, except for the Crays, where
# the cache value is set in it's config file)
#
set (${HDF_PREFIX}_CONVERT_DENORMAL_FLOAT 1)