aboutsummaryrefslogtreecommitdiff
path: root/CMakeLists.txt
blob: 727ca81537694f08afac732ff0fac1c3502fc8f2 (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
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
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
#***************************************************************************
#                                  _   _ ____  _
#  Project                     ___| | | |  _ \| |
#                             / __| | | | |_) | |
#                            | (__| |_| |  _ <| |___
#                             \___|\___/|_| \_\_____|
#
# Copyright (C) 1998 - 2017, Daniel Stenberg, <daniel@haxx.se>, et al.
#
# This software is licensed as described in the file COPYING, which
# you should have received as part of this distribution. The terms
# are also available at https://curl.haxx.se/docs/copyright.html.
#
# You may opt to use, copy, modify, merge, publish, distribute and/or sell
# copies of the Software, and permit persons to whom the Software is
# furnished to do so, under the terms of the COPYING file.
#
# This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
# KIND, either express or implied.
#
###########################################################################
# curl/libcurl CMake script
# by Tetetest and Sukender (Benoit Neil)

# TODO:
# The output .so file lacks the soname number which we currently have within the lib/Makefile.am file
# Add full (4 or 5 libs) SSL support
# Add INSTALL target (EXTRA_DIST variables in Makefile.am may be moved to Makefile.inc so that CMake/CPack is aware of what's to include).
# Add CTests(?)
# Check on all possible platforms
# Test with as many configurations possible (With or without any option)
# Create scripts that help keeping the CMake build system up to date (to reduce maintenance). According to Tetetest:
#  - lists of headers that 'configure' checks for;
#  - curl-specific tests (the ones that are in m4/curl-*.m4 files);
#  - (most obvious thing:) curl version numbers.
# Add documentation subproject
#
# To check:
# (From Daniel Stenberg) The cmake build selected to run gcc with -fPIC on my box while the plain configure script did not.
# (From Daniel Stenberg) The gcc command line use neither -g nor any -O options. As a developer, I also treasure our configure scripts's --enable-debug option that sets a long range of "picky" compiler options.
cmake_minimum_required(VERSION 2.8 FATAL_ERROR)
set(CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/CMake;${CMAKE_MODULE_PATH}")
include(Utilities)
include(Macros)
include(CMakeDependentOption)

project( CURL C )

message(WARNING "the curl cmake build system is poorly maintained. Be aware")

file (READ ${CURL_SOURCE_DIR}/include/curl/curlver.h CURL_VERSION_H_CONTENTS)
string (REGEX MATCH "#define LIBCURL_VERSION \"[^\"]*"
  CURL_VERSION ${CURL_VERSION_H_CONTENTS})
string (REGEX REPLACE "[^\"]+\"" "" CURL_VERSION ${CURL_VERSION})
string (REGEX MATCH "#define LIBCURL_VERSION_NUM 0x[0-9a-fA-F]+"
  CURL_VERSION_NUM ${CURL_VERSION_H_CONTENTS})
string (REGEX REPLACE "[^0]+0x" "" CURL_VERSION_NUM ${CURL_VERSION_NUM})

include_regular_expression("^.*$")    # Sukender: Is it necessary?

# Setup package meta-data
# SET(PACKAGE "curl")
message(STATUS "curl version=[${CURL_VERSION}]")
# SET(PACKAGE_TARNAME "curl")
# SET(PACKAGE_NAME "curl")
# SET(PACKAGE_VERSION "-")
# SET(PACKAGE_STRING "curl-")
# SET(PACKAGE_BUGREPORT "a suitable curl mailing list => https://curl.haxx.se/mail/")
set(OPERATING_SYSTEM "${CMAKE_SYSTEM_NAME}")
set(OS "\"${CMAKE_SYSTEM_NAME}\"")

include_directories(${PROJECT_BINARY_DIR}/include/curl)
include_directories( ${CURL_SOURCE_DIR}/include )

option(BUILD_CURL_EXE "Set to ON to build curl executable." ON)
option(CURL_STATICLIB "Set to ON to build libcurl with static linking." OFF)
option(ENABLE_ARES "Set to ON to enable c-ares support" OFF)
if(WIN32)
  option(CURL_STATIC_CRT "Set to ON to build libcurl with static CRT on Windows (/MT)." OFF)
  option(ENABLE_INET_PTON "Set to OFF to prevent usage of inet_pton when building against modern SDKs while still requiring compatibility with older Windows versions, such as Windows XP, Windows Server 2003 etc." ON)

  CMAKE_DEPENDENT_OPTION(ENABLE_THREADED_RESOLVER
                         "Set to ON to enable threaded DNS lookup"
                         ON "NOT ENABLE_ARES"
                         OFF)
else()
  option(ENABLE_THREADED_RESOLVER "Set to ON to enable POSIX threaded DNS lookup" OFF)
endif()
option(ENABLE_DEBUG "Set to ON to enable curl debug features" OFF)
option(ENABLE_CURLDEBUG "Set to ON to build with TrackMemory feature enabled" OFF)

if (ENABLE_DEBUG)
  # DEBUGBUILD will be defined only for Debug builds
  if(NOT CMAKE_VERSION VERSION_LESS 3.0)
    set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS $<$<CONFIG:Debug>:DEBUGBUILD>)
  else()
    set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS_DEBUG DEBUGBUILD)
  endif()
  set(ENABLE_CURLDEBUG ON)
endif()

if (ENABLE_CURLDEBUG)
  set_property(DIRECTORY APPEND PROPERTY COMPILE_DEFINITIONS CURLDEBUG)
endif()

# initialize CURL_LIBS
set(CURL_LIBS "")

if(ENABLE_THREADED_RESOLVER AND ENABLE_ARES)
  message(FATAL_ERROR "Options ENABLE_THREADED_RESOLVER and ENABLE_ARES are mutually exclusive")
endif()

if(ENABLE_ARES)
  set(USE_ARES 1)
  find_package(CARES REQUIRED)
  list(APPEND CURL_LIBS ${CARES_LIBRARY} )
  set(CURL_LIBS ${CURL_LIBS} ${CARES_LIBRARY})
endif()

if(MSVC)
  option(BUILD_RELEASE_DEBUG_DIRS "Set OFF to build each configuration to a separate directory" OFF)
  mark_as_advanced(BUILD_RELEASE_DEBUG_DIRS)
endif()

include(CurlSymbolHiding)

option(HTTP_ONLY "disables all protocols except HTTP (This overrides all CURL_DISABLE_* options)" OFF)
mark_as_advanced(HTTP_ONLY)
option(CURL_DISABLE_FTP "disables FTP" OFF)
mark_as_advanced(CURL_DISABLE_FTP)
option(CURL_DISABLE_LDAP "disables LDAP" OFF)
mark_as_advanced(CURL_DISABLE_LDAP)
option(CURL_DISABLE_TELNET "disables Telnet" OFF)
mark_as_advanced(CURL_DISABLE_TELNET)
option(CURL_DISABLE_DICT "disables DICT" OFF)
mark_as_advanced(CURL_DISABLE_DICT)
option(CURL_DISABLE_FILE "disables FILE" OFF)
mark_as_advanced(CURL_DISABLE_FILE)
option(CURL_DISABLE_TFTP "disables TFTP" OFF)
mark_as_advanced(CURL_DISABLE_TFTP)
option(CURL_DISABLE_HTTP "disables HTTP" OFF)
mark_as_advanced(CURL_DISABLE_HTTP)

option(CURL_DISABLE_LDAPS "to disable LDAPS" OFF)
mark_as_advanced(CURL_DISABLE_LDAPS)

option(CURL_DISABLE_RTSP "to disable RTSP" OFF)
mark_as_advanced(CURL_DISABLE_RTSP)
option(CURL_DISABLE_PROXY "to disable proxy" OFF)
mark_as_advanced(CURL_DISABLE_PROXY)
option(CURL_DISABLE_POP3 "to disable POP3" OFF)
mark_as_advanced(CURL_DISABLE_POP3)
option(CURL_DISABLE_IMAP "to disable IMAP" OFF)
mark_as_advanced(CURL_DISABLE_IMAP)
option(CURL_DISABLE_SMTP "to disable SMTP" OFF)
mark_as_advanced(CURL_DISABLE_SMTP)
option(CURL_DISABLE_GOPHER "to disable Gopher" OFF)
mark_as_advanced(CURL_DISABLE_GOPHER)

if(HTTP_ONLY)
  set(CURL_DISABLE_FTP ON)
  set(CURL_DISABLE_LDAP ON)
  set(CURL_DISABLE_LDAPS ON)
  set(CURL_DISABLE_TELNET ON)
  set(CURL_DISABLE_DICT ON)
  set(CURL_DISABLE_FILE ON)
  set(CURL_DISABLE_TFTP ON)
  set(CURL_DISABLE_RTSP ON)
  set(CURL_DISABLE_POP3 ON)
  set(CURL_DISABLE_IMAP ON)
  set(CURL_DISABLE_SMTP ON)
  set(CURL_DISABLE_GOPHER ON)
endif()

option(CURL_DISABLE_COOKIES "to disable cookies support" OFF)
mark_as_advanced(CURL_DISABLE_COOKIES)

option(CURL_DISABLE_CRYPTO_AUTH "to disable cryptographic authentication" OFF)
mark_as_advanced(CURL_DISABLE_CRYPTO_AUTH)
option(CURL_DISABLE_VERBOSE_STRINGS "to disable verbose strings" OFF)
mark_as_advanced(CURL_DISABLE_VERBOSE_STRINGS)
option(DISABLED_THREADSAFE "Set to explicitly specify we don't want to use thread-safe functions" OFF)
mark_as_advanced(DISABLED_THREADSAFE)
option(ENABLE_IPV6 "Define if you want to enable IPv6 support" ON)
mark_as_advanced(ENABLE_IPV6)
if(ENABLE_IPV6 AND NOT WIN32)
  include(CheckStructHasMember)
  check_struct_has_member("struct sockaddr_in6" sin6_addr "netinet/in.h"
                          HAVE_SOCKADDR_IN6_SIN6_ADDR)
  check_struct_has_member("struct sockaddr_in6" sin6_scope_id "netinet/in.h"
                          HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID)
  if(NOT HAVE_SOCKADDR_IN6_SIN6_ADDR)
    message(WARNING "struct sockaddr_in6 not available, disabling IPv6 support")
    # Force the feature off as this name is used as guard macro...
    set(ENABLE_IPV6 OFF
        CACHE BOOL "Define if you want to enable IPv6 support" FORCE)
  endif()
endif()

option(ENABLE_MANUAL "to provide the built-in manual" ON)
unset(USE_MANUAL CACHE) # TODO: cache NROFF/NROFF_MANOPT/USE_MANUAL vars?
if(ENABLE_MANUAL)
  find_program(NROFF NAMES gnroff nroff)
  if(NROFF)
    # Need a way to write to stdin, this will do
    file(WRITE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt" "test")
    # Tests for a valid nroff option to generate a manpage
    foreach(_MANOPT "-man" "-mandoc")
      execute_process(COMMAND "${NROFF}" ${_MANOPT}
        OUTPUT_VARIABLE NROFF_MANOPT_OUTPUT
        INPUT_FILE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt"
        ERROR_QUIET)
      # Save the option if it was valid
      if(NROFF_MANOPT_OUTPUT)
        message("Found *nroff option: -- ${_MANOPT}")
        set(NROFF_MANOPT ${_MANOPT})
        set(USE_MANUAL 1)
        break()
      endif()
    endforeach()
    # No need for the temporary file
    file(REMOVE "${CMAKE_CURRENT_BINARY_DIR}/nroff-input.txt")
    if(NOT USE_MANUAL)
      message(WARNING "Found no *nroff option to get plaintext from man pages")
    endif()
  else()
    message(WARNING "Found no *nroff program")
  endif()
endif()
# Required for building manual, docs, tests
find_package(Perl REQUIRED)

# We need ansi c-flags, especially on HP
set(CMAKE_C_FLAGS "${CMAKE_ANSI_CFLAGS} ${CMAKE_C_FLAGS}")
set(CMAKE_REQUIRED_FLAGS ${CMAKE_ANSI_CFLAGS})

if(CURL_STATIC_CRT)
  set(CMAKE_C_FLAGS_RELEASE "${CMAKE_C_FLAGS_RELEASE} /MT")
  set(CMAKE_C_FLAGS_DEBUG "${CMAKE_C_FLAGS_DEBUG} /MTd")
endif()

# Disable warnings on Borland to avoid changing 3rd party code.
if(BORLAND)
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -w-")
endif(BORLAND)

# If we are on AIX, do the _ALL_SOURCE magic
if(${CMAKE_SYSTEM_NAME} MATCHES AIX)
  set(_ALL_SOURCE 1)
endif(${CMAKE_SYSTEM_NAME} MATCHES AIX)

# Include all the necessary files for macros
include (CheckFunctionExists)
include (CheckIncludeFile)
include (CheckIncludeFiles)
include (CheckLibraryExists)
include (CheckSymbolExists)
include (CheckTypeSize)
include (CheckCSourceCompiles)
include (CMakeDependentOption)

# On windows preload settings
if(WIN32)
  set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -D_WINSOCKAPI_=")
  include(${CMAKE_CURRENT_SOURCE_DIR}/CMake/Platforms/WindowsCache.cmake)
endif(WIN32)

if(ENABLE_THREADED_RESOLVER)
  if(WIN32)
    set(USE_THREADS_WIN32 ON)
  else()
    check_include_file_concat("pthread.h" HAVE_PTHREAD_H)
    if(HAVE_PTHREAD_H)
      set(CMAKE_THREAD_PREFER_PTHREAD 1)
      find_package(Threads)
      if(CMAKE_USE_PTHREADS_INIT)
        set(CURL_LIBS ${CURL_LIBS} ${CMAKE_THREAD_LIBS_INIT})
        set(USE_THREADS_POSIX 1)
      endif()
    endif()
  endif()
endif()

# Check for all needed libraries
check_library_exists_concat("dl"     dlopen       HAVE_LIBDL)
check_library_exists_concat("socket" connect      HAVE_LIBSOCKET)
check_library_exists("c" gethostbyname "" NOT_NEED_LIBNSL)

# Yellowtab Zeta needs different libraries than BeOS 5.
if(BEOS)
  set(NOT_NEED_LIBNSL 1)
  check_library_exists_concat("bind" gethostbyname HAVE_LIBBIND)
  check_library_exists_concat("bnetapi" closesocket HAVE_LIBBNETAPI)
endif(BEOS)

if(NOT NOT_NEED_LIBNSL)
  check_library_exists_concat("nsl"    gethostbyname  HAVE_LIBNSL)
endif(NOT NOT_NEED_LIBNSL)

check_function_exists(gethostname HAVE_GETHOSTNAME)

if(WIN32)
  check_library_exists_concat("ws2_32" getch        HAVE_LIBWS2_32)
  check_library_exists_concat("winmm"  getch        HAVE_LIBWINMM)
endif()

# check SSL libraries
# TODO support GNUTLS, NSS, POLARSSL, AXTLS, CYASSL

if(APPLE)
  option(CMAKE_USE_DARWINSSL "enable Apple OS native SSL/TLS" OFF)
endif()
if(WIN32)
  option(CMAKE_USE_WINSSL "enable Windows native SSL/TLS" OFF)
  cmake_dependent_option(CURL_WINDOWS_SSPI "Use windows libraries to allow NTLM authentication without openssl" ON
    CMAKE_USE_WINSSL OFF)
endif()
option(CMAKE_USE_MBEDTLS "Enable mbedTLS for SSL/TLS" OFF)

set(openssl_default ON)
if(WIN32 OR CMAKE_USE_DARWINSSL OR CMAKE_USE_WINSSL OR CMAKE_USE_MBEDTLS)
  set(openssl_default OFF)
endif()
option(CMAKE_USE_OPENSSL "Use OpenSSL code. Experimental" ${openssl_default})

collect_true(enabled_ssl_options enabled_ssl_options_count
  CMAKE_USE_WINSSL
  CMAKE_USE_DARWINSSL
  CMAKE_USE_OPENSSL
  CMAKE_USE_MBEDTLS
)
if(enabled_ssl_options_count GREATER 1)
  message(FATAL_ERROR "Multiple SSL options specified: ${enabled_ssl_options}. Please pick at most one and disable the rest.")
endif()

if(CMAKE_USE_WINSSL)
  set(SSL_ENABLED ON)
  set(USE_SCHANNEL ON) # Windows native SSL/TLS support
  set(USE_WINDOWS_SSPI ON) # CMAKE_USE_WINSSL implies CURL_WINDOWS_SSPI
  list(APPEND CURL_LIBS "crypt32")
endif()
if(CURL_WINDOWS_SSPI)
  set(USE_WINDOWS_SSPI ON)
  set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -DSECURITY_WIN32")
endif()

if(CMAKE_USE_DARWINSSL)
  find_library(COREFOUNDATION_FRAMEWORK "CoreFoundation")
  if(NOT COREFOUNDATION_FRAMEWORK)
      message(FATAL_ERROR "CoreFoundation framework not found")
  endif()

  find_library(SECURITY_FRAMEWORK "Security")
  if(NOT SECURITY_FRAMEWORK)
     message(FATAL_ERROR "Security framework not found")
  endif()

  set(SSL_ENABLED ON)
  set(USE_DARWINSSL ON)
  list(APPEND CURL_LIBS "${COREFOUNDATION_FRAMEWORK}" "${SECURITY_FRAMEWORK}")
endif()

if(CMAKE_USE_OPENSSL)
  find_package(OpenSSL REQUIRED)
  set(SSL_ENABLED ON)
  set(USE_OPENSSL ON)
  set(HAVE_LIBCRYPTO ON)
  set(HAVE_LIBSSL ON)
  list(APPEND CURL_LIBS ${OPENSSL_LIBRARIES})
  include_directories(${OPENSSL_INCLUDE_DIR})
  set(CMAKE_REQUIRED_INCLUDES ${OPENSSL_INCLUDE_DIR})
  check_include_file("openssl/crypto.h" HAVE_OPENSSL_CRYPTO_H)
  check_include_file("openssl/engine.h" HAVE_OPENSSL_ENGINE_H)
  check_include_file("openssl/err.h"    HAVE_OPENSSL_ERR_H)
  check_include_file("openssl/pem.h"    HAVE_OPENSSL_PEM_H)
  check_include_file("openssl/pkcs12.h" HAVE_OPENSSL_PKCS12_H)
  check_include_file("openssl/rsa.h"    HAVE_OPENSSL_RSA_H)
  check_include_file("openssl/ssl.h"    HAVE_OPENSSL_SSL_H)
  check_include_file("openssl/x509.h"   HAVE_OPENSSL_X509_H)
  check_include_file("openssl/rand.h"   HAVE_OPENSSL_RAND_H)
  check_symbol_exists(RAND_status "${CURL_INCLUDES}" HAVE_RAND_STATUS)
  check_symbol_exists(RAND_screen "${CURL_INCLUDES}" HAVE_RAND_SCREEN)
  check_symbol_exists(RAND_egd    "${CURL_INCLUDES}" HAVE_RAND_EGD)
endif()

if(CMAKE_USE_MBEDTLS)
  find_package(MbedTLS REQUIRED)
  set(SSL_ENABLED ON)
  set(USE_MBEDTLS ON)
  list(APPEND CURL_LIBS ${MBEDTLS_LIBRARIES})
  include_directories(${MBEDTLS_INCLUDE_DIRS})
endif()

option(USE_NGHTTP2 "Use Nghttp2 library" OFF)
if(USE_NGHTTP2)
  find_package(NGHTTP2 REQUIRED)
  include_directories(${NGHTTP2_INCLUDE_DIRS})
  list(APPEND CURL_LIBS ${NGHTTP2_LIBRARIES})
endif()

if(NOT CURL_DISABLE_LDAP)
  if(WIN32)
    option(USE_WIN32_LDAP "Use Windows LDAP implementation" ON)
    if(USE_WIN32_LDAP)
      check_library_exists_concat("wldap32" cldap_open HAVE_WLDAP32)
      if(NOT HAVE_WLDAP32)
        set(USE_WIN32_LDAP OFF)
      endif()
    endif()
  endif()

  option(CMAKE_USE_OPENLDAP "Use OpenLDAP code." OFF)
  mark_as_advanced(CMAKE_USE_OPENLDAP)
  set(CMAKE_LDAP_LIB "ldap" CACHE STRING "Name or full path to ldap library")
  set(CMAKE_LBER_LIB "lber" CACHE STRING "Name or full path to lber library")

  if(CMAKE_USE_OPENLDAP AND USE_WIN32_LDAP)
    message(FATAL_ERROR "Cannot use USE_WIN32_LDAP and CMAKE_USE_OPENLDAP at the same time")
  endif()

  # Now that we know, we're not using windows LDAP...
  if(USE_WIN32_LDAP)
    check_include_file_concat("winldap.h" HAVE_WINLDAP_H)
    check_include_file_concat("winber.h"  HAVE_WINBER_H)
  else()
    # Check for LDAP
    set(CMAKE_REQUIRED_LIBRARIES ${OPENSSL_LIBRARIES})
    check_library_exists_concat(${CMAKE_LDAP_LIB} ldap_init HAVE_LIBLDAP)
    check_library_exists_concat(${CMAKE_LBER_LIB} ber_init HAVE_LIBLBER)

    set(CMAKE_REQUIRED_INCLUDES_BAK ${CMAKE_REQUIRED_INCLUDES})
    set(CMAKE_LDAP_INCLUDE_DIR "" CACHE STRING "Path to LDAP include directory")
    if(CMAKE_LDAP_INCLUDE_DIR)
      list(APPEND CMAKE_REQUIRED_INCLUDES ${CMAKE_LDAP_INCLUDE_DIR})
    endif()
    check_include_file_concat("ldap.h"           HAVE_LDAP_H)
    check_include_file_concat("lber.h"           HAVE_LBER_H)

    if(NOT HAVE_LDAP_H)
      message(STATUS "LDAP_H not found CURL_DISABLE_LDAP set ON")
      set(CURL_DISABLE_LDAP ON CACHE BOOL "" FORCE)
      set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES_BAK}) #LDAP includes won't be used
    elseif(NOT HAVE_LIBLDAP)
      message(STATUS "LDAP library '${CMAKE_LDAP_LIB}' not found CURL_DISABLE_LDAP set ON")
      set(CURL_DISABLE_LDAP ON CACHE BOOL "" FORCE)
      set(CMAKE_REQUIRED_INCLUDES ${CMAKE_REQUIRED_INCLUDES_BAK}) #LDAP includes won't be used
    else()
      if(CMAKE_USE_OPENLDAP)
        set(USE_OPENLDAP ON)
      endif()
      if(CMAKE_LDAP_INCLUDE_DIR)
        include_directories(${CMAKE_LDAP_INCLUDE_DIR})
      endif()
      set(NEED_LBER_H ON)
      set(_HEADER_LIST)
      if(HAVE_WINDOWS_H)
        list(APPEND _HEADER_LIST "windows.h")
      endif()
      if(HAVE_SYS_TYPES_H)
        list(APPEND _HEADER_LIST "sys/types.h")
      endif()
      list(APPEND _HEADER_LIST "ldap.h")

      set(_SRC_STRING "")
      foreach(_HEADER ${_HEADER_LIST})
        set(_INCLUDE_STRING "${_INCLUDE_STRING}#include <${_HEADER}>\n")
      endforeach()

      set(_SRC_STRING
        "
        ${_INCLUDE_STRING}
        int main(int argc, char ** argv)
        {
          BerValue *bvp = NULL;
          BerElement *bep = ber_init(bvp);
          ber_free(bep, 1);
          return 0;
        }"
      )
      set(CMAKE_REQUIRED_DEFINITIONS "${CMAKE_REQUIRED_DEFINITIONS} -DLDAP_DEPRECATED=1")
      list(APPEND CMAKE_REQUIRED_LIBRARIES ${CMAKE_LDAP_LIB})
      if(HAVE_LIBLBER)
        list(APPEND CMAKE_REQUIRED_LIBRARIES ${CMAKE_LBER_LIB})
      endif()
      check_c_source_compiles("${_SRC_STRING}" NOT_NEED_LBER_H)

      if(NOT_NEED_LBER_H)
        set(NEED_LBER_H OFF)
      else()
        set(CURL_TEST_DEFINES "${CURL_TEST_DEFINES} -DNEED_LBER_H")
      endif()
    endif()
  endif()

endif()

# No ldap, no ldaps.
if(CURL_DISABLE_LDAP)
  if(NOT CURL_DISABLE_LDAPS)
    message(STATUS "LDAP needs to be enabled to support LDAPS")
    set(CURL_DISABLE_LDAPS ON CACHE BOOL "" FORCE)
  endif()
endif()

if(NOT CURL_DISABLE_LDAPS)
  check_include_file_concat("ldap_ssl.h" HAVE_LDAP_SSL_H)
  check_include_file_concat("ldapssl.h"  HAVE_LDAPSSL_H)
endif()

# Check for idn
check_library_exists_concat("idn2" idn2_lookup_ul HAVE_LIBIDN2)

# Check for symbol dlopen (same as HAVE_LIBDL)
check_library_exists("${CURL_LIBS}" dlopen "" HAVE_DLOPEN)

option(CURL_ZLIB "Set to ON to enable building curl with zlib support." ON)
set(HAVE_LIBZ OFF)
set(HAVE_ZLIB_H OFF)
set(HAVE_ZLIB OFF)
if(CURL_ZLIB)
  find_package(ZLIB QUIET)
  if(ZLIB_FOUND)
    set(HAVE_ZLIB_H ON)
    set(HAVE_ZLIB ON)
    set(HAVE_LIBZ ON)
    list(APPEND CURL_LIBS ${ZLIB_LIBRARIES})
    include_directories(${ZLIB_INCLUDE_DIRS})
    list(APPEND CMAKE_REQUIRED_INCLUDES ${ZLIB_INCLUDE_DIRS})
  endif()
endif()

#libSSH2
option(CMAKE_USE_LIBSSH2 "Use libSSH2" ON)
mark_as_advanced(CMAKE_USE_LIBSSH2)
set(USE_LIBSSH2 OFF)
set(HAVE_LIBSSH2 OFF)
set(HAVE_LIBSSH2_H OFF)

if(CMAKE_USE_LIBSSH2)
  find_package(LibSSH2)
  if(LIBSSH2_FOUND)
    list(APPEND CURL_LIBS ${LIBSSH2_LIBRARY})
    set(CMAKE_REQUIRED_LIBRARIES ${LIBSSH2_LIBRARY})
    list(APPEND CMAKE_REQUIRED_INCLUDES "${LIBSSH2_INCLUDE_DIR}")
    include_directories("${LIBSSH2_INCLUDE_DIR}")
    set(HAVE_LIBSSH2 ON)
    set(USE_LIBSSH2 ON)

    # find_package has already found the headers
    set(HAVE_LIBSSH2_H ON)
    set(CURL_INCLUDES ${CURL_INCLUDES} "${LIBSSH2_INCLUDE_DIR}/libssh2.h")
    set(CURL_TEST_DEFINES "${CURL_TEST_DEFINES} -DHAVE_LIBSSH2_H")

    # now check for specific libssh2 symbols as they were added in different versions
    set(CMAKE_EXTRA_INCLUDE_FILES "libssh2.h")
    check_function_exists(libssh2_version           HAVE_LIBSSH2_VERSION)
    check_function_exists(libssh2_init              HAVE_LIBSSH2_INIT)
    check_function_exists(libssh2_exit              HAVE_LIBSSH2_EXIT)
    check_function_exists(libssh2_scp_send64        HAVE_LIBSSH2_SCP_SEND64)
    check_function_exists(libssh2_session_handshake HAVE_LIBSSH2_SESSION_HANDSHAKE)
    set(CMAKE_EXTRA_INCLUDE_FILES "")

  endif(LIBSSH2_FOUND)
endif(CMAKE_USE_LIBSSH2)

option(CMAKE_USE_GSSAPI "Use GSSAPI implementation (right now only Heimdal is supported with CMake build)" OFF)
mark_as_advanced(CMAKE_USE_GSSAPI)

if(CMAKE_USE_GSSAPI)
  find_package(GSS)

  set(HAVE_GSSAPI ${GSS_FOUND})
  if(GSS_FOUND)

    message(STATUS "Found ${GSS_FLAVOUR} GSSAPI version: \"${GSS_VERSION}\"")

    list(APPEND CMAKE_REQUIRED_INCLUDES ${GSS_INCLUDE_DIRECTORIES})
    check_include_file_concat("gssapi/gssapi.h"  HAVE_GSSAPI_GSSAPI_H)
    check_include_file_concat("gssapi/gssapi_generic.h" HAVE_GSSAPI_GSSAPI_GENERIC_H)
    check_include_file_concat("gssapi/gssapi_krb5.h" HAVE_GSSAPI_GSSAPI_KRB5_H)

    if(GSS_FLAVOUR STREQUAL "Heimdal")
      set(HAVE_GSSHEIMDAL ON)
    else() # MIT
      set(HAVE_GSSMIT ON)
      set(_INCLUDE_LIST "")
      if(HAVE_GSSAPI_GSSAPI_H)
        list(APPEND _INCLUDE_LIST "gssapi/gssapi.h")
      endif()
      if(HAVE_GSSAPI_GSSAPI_GENERIC_H)
        list(APPEND _INCLUDE_LIST "gssapi/gssapi_generic.h")
      endif()
      if(HAVE_GSSAPI_GSSAPI_KRB5_H)
        list(APPEND _INCLUDE_LIST "gssapi/gssapi_krb5.h")
      endif()

      string(REPLACE ";" " " _COMPILER_FLAGS_STR "${GSS_COMPILER_FLAGS}")
      string(REPLACE ";" " " _LINKER_FLAGS_STR "${GSS_LINKER_FLAGS}")

      foreach(_dir ${GSS_LINK_DIRECTORIES})
        set(_LINKER_FLAGS_STR "${_LINKER_FLAGS_STR} -L\"${_dir}\"")
      endforeach()

      set(CMAKE_REQUIRED_FLAGS "${_COMPILER_FLAGS_STR} ${_LINKER_FLAGS_STR}")
      set(CMAKE_REQUIRED_LIBRARIES ${GSS_LIBRARIES})
      check_symbol_exists("GSS_C_NT_HOSTBASED_SERVICE" ${_INCLUDE_LIST} HAVE_GSS_C_NT_HOSTBASED_SERVICE)
      if(NOT HAVE_GSS_C_NT_HOSTBASED_SERVICE)
        set(HAVE_OLD_GSSMIT ON)
      endif()

    endif()

    include_directories(${GSS_INCLUDE_DIRECTORIES})
    link_directories(${GSS_LINK_DIRECTORIES})
    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${GSS_COMPILER_FLAGS}")
    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} ${GSS_LINKER_FLAGS}")
    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} ${GSS_LINKER_FLAGS}")
    list(APPEND CURL_LIBS ${GSS_LIBRARIES})

  else()
    message(WARNING "GSSAPI support has been requested but no supporting libraries found. Skipping.")
  endif()
endif()

option(ENABLE_UNIX_SOCKETS "Define if you want Unix domain sockets support" ON)
if(ENABLE_UNIX_SOCKETS)
  include(CheckStructHasMember)
  check_struct_has_member("struct sockaddr_un" sun_path "sys/un.h" USE_UNIX_SOCKETS)
else()
  unset(USE_UNIX_SOCKETS CACHE)
endif()


#
# CA handling
#
set(CURL_CA_BUNDLE "auto" CACHE STRING
    "Path to the CA bundle. Set 'none' to disable or 'auto' for auto-detection. Defaults to 'auto'.")
set(CURL_CA_FALLBACK OFF CACHE BOOL
    "Set ON to use built-in CA store of TLS backend. Defaults to OFF")
set(CURL_CA_PATH "auto" CACHE STRING
    "Location of default CA path. Set 'none' to disable or 'auto' for auto-detection. Defaults to 'auto'.")

if("${CURL_CA_BUNDLE}" STREQUAL "")
    message(FATAL_ERROR "Invalid value of CURL_CA_BUNDLE. Use 'none', 'auto' or file path.")
elseif("${CURL_CA_BUNDLE}" STREQUAL "none")
    unset(CURL_CA_BUNDLE CACHE)
elseif("${CURL_CA_BUNDLE}" STREQUAL "auto")
    unset(CURL_CA_BUNDLE CACHE)
    set(CURL_CA_BUNDLE_AUTODETECT TRUE)
else()
    set(CURL_CA_BUNDLE_SET TRUE)
endif()

if("${CURL_CA_PATH}" STREQUAL "")
    message(FATAL_ERROR "Invalid value of CURL_CA_PATH. Use 'none', 'auto' or directory path.")
elseif("${CURL_CA_PATH}" STREQUAL "none")
    unset(CURL_CA_PATH CACHE)
elseif("${CURL_CA_PATH}" STREQUAL "auto")
    unset(CURL_CA_PATH CACHE)
    set(CURL_CA_PATH_AUTODETECT TRUE)
else()
    set(CURL_CA_PATH_SET TRUE)
endif()

if(CURL_CA_BUNDLE_SET AND CURL_CA_PATH_AUTODETECT)
    # Skip autodetection of unset CA path because CA bundle is set explicitly
elseif(CURL_CA_PATH_SET AND CURL_CA_BUNDLE_AUTODETECT)
    # Skip autodetection of unset CA bundle because CA path is set explicitly
elseif(CURL_CA_PATH_AUTODETECT OR CURL_CA_BUNDLE_AUTODETECT)
    # first try autodetecting a CA bundle, then a CA path

    if(CURL_CA_BUNDLE_AUTODETECT)
        set(SEARCH_CA_BUNDLE_PATHS
            /etc/ssl/certs/ca-certificates.crt
            /etc/pki/tls/certs/ca-bundle.crt
            /usr/share/ssl/certs/ca-bundle.crt
            /usr/local/share/certs/ca-root-nss.crt
            /etc/ssl/cert.pem)

        foreach(SEARCH_CA_BUNDLE_PATH ${SEARCH_CA_BUNDLE_PATHS})
            if(EXISTS "${SEARCH_CA_BUNDLE_PATH}")
                message(STATUS "Found CA bundle: ${SEARCH_CA_BUNDLE_PATH}")
                set(CURL_CA_BUNDLE "${SEARCH_CA_BUNDLE_PATH}")
                set(CURL_CA_BUNDLE_SET TRUE CACHE BOOL "Path to the CA bundle has been set")
                break()
            endif()
        endforeach()
    endif()

    if(CURL_CA_PATH_AUTODETECT AND (NOT CURL_CA_PATH_SET))
        if(EXISTS "/etc/ssl/certs")
            set(CURL_CA_PATH "/etc/ssl/certs")
            set(CURL_CA_PATH_SET TRUE CACHE BOOL "Path to the CA bundle has been set")
        endif()
    endif()
endif()

if(CURL_CA_PATH_SET AND NOT USE_OPENSSL AND NOT USE_MBEDTLS)
    message(FATAL_ERROR
            "CA path only supported by OpenSSL, GnuTLS or mbed TLS. "
            "Set CURL_CA_PATH=none or enable one of those TLS backends.")
endif()


# Check for header files
if(NOT UNIX)
  check_include_file_concat("windows.h"      HAVE_WINDOWS_H)
  check_include_file_concat("winsock.h"      HAVE_WINSOCK_H)
  check_include_file_concat("ws2tcpip.h"     HAVE_WS2TCPIP_H)
  check_include_file_concat("winsock2.h"     HAVE_WINSOCK2_H)
  if(NOT CURL_WINDOWS_SSPI AND USE_OPENSSL)
    set(CURL_LIBS ${CURL_LIBS} "crypt32")
  endif()
endif(NOT UNIX)

check_include_file_concat("stdio.h"          HAVE_STDIO_H)
check_include_file_concat("inttypes.h"       HAVE_INTTYPES_H)
check_include_file_concat("sys/filio.h"      HAVE_SYS_FILIO_H)
check_include_file_concat("sys/ioctl.h"      HAVE_SYS_IOCTL_H)
check_include_file_concat("sys/param.h"      HAVE_SYS_PARAM_H)
check_include_file_concat("sys/poll.h"       HAVE_SYS_POLL_H)
check_include_file_concat("sys/resource.h"   HAVE_SYS_RESOURCE_H)
check_include_file_concat("sys/select.h"     HAVE_SYS_SELECT_H)
check_include_file_concat("sys/socket.h"     HAVE_SYS_SOCKET_H)
check_include_file_concat("sys/sockio.h"     HAVE_SYS_SOCKIO_H)
check_include_file_concat("sys/stat.h"       HAVE_SYS_STAT_H)
check_include_file_concat("sys/time.h"       HAVE_SYS_TIME_H)
check_include_file_concat("sys/types.h"      HAVE_SYS_TYPES_H)
check_include_file_concat("sys/uio.h"        HAVE_SYS_UIO_H)
check_include_file_concat("sys/un.h"         HAVE_SYS_UN_H)
check_include_file_concat("sys/utime.h"      HAVE_SYS_UTIME_H)
check_include_file_concat("sys/xattr.h"      HAVE_SYS_XATTR_H)
check_include_file_concat("alloca.h"         HAVE_ALLOCA_H)
check_include_file_concat("arpa/inet.h"      HAVE_ARPA_INET_H)
check_include_file_concat("arpa/tftp.h"      HAVE_ARPA_TFTP_H)
check_include_file_concat("assert.h"         HAVE_ASSERT_H)
check_include_file_concat("crypto.h"         HAVE_CRYPTO_H)
check_include_file_concat("des.h"            HAVE_DES_H)
check_include_file_concat("err.h"            HAVE_ERR_H)
check_include_file_concat("errno.h"          HAVE_ERRNO_H)
check_include_file_concat("fcntl.h"          HAVE_FCNTL_H)
check_include_file_concat("idn2.h"           HAVE_IDN2_H)
check_include_file_concat("ifaddrs.h"        HAVE_IFADDRS_H)
check_include_file_concat("io.h"             HAVE_IO_H)
check_include_file_concat("krb.h"            HAVE_KRB_H)
check_include_file_concat("libgen.h"         HAVE_LIBGEN_H)
check_include_file_concat("limits.h"         HAVE_LIMITS_H)
check_include_file_concat("locale.h"         HAVE_LOCALE_H)
check_include_file_concat("net/if.h"         HAVE_NET_IF_H)
check_include_file_concat("netdb.h"          HAVE_NETDB_H)
check_include_file_concat("netinet/in.h"     HAVE_NETINET_IN_H)
check_include_file_concat("netinet/tcp.h"    HAVE_NETINET_TCP_H)

check_include_file_concat("pem.h"            HAVE_PEM_H)
check_include_file_concat("poll.h"           HAVE_POLL_H)
check_include_file_concat("pwd.h"            HAVE_PWD_H)
check_include_file_concat("rsa.h"            HAVE_RSA_H)
check_include_file_concat("setjmp.h"         HAVE_SETJMP_H)
check_include_file_concat("sgtty.h"          HAVE_SGTTY_H)
check_include_file_concat("signal.h"         HAVE_SIGNAL_H)
check_include_file_concat("ssl.h"            HAVE_SSL_H)
check_include_file_concat("stdbool.h"        HAVE_STDBOOL_H)
check_include_file_concat("stdint.h"         HAVE_STDINT_H)
check_include_file_concat("stdio.h"          HAVE_STDIO_H)
check_include_file_concat("stdlib.h"         HAVE_STDLIB_H)
check_include_file_concat("string.h"         HAVE_STRING_H)
check_include_file_concat("strings.h"        HAVE_STRINGS_H)
check_include_file_concat("stropts.h"        HAVE_STROPTS_H)
check_include_file_concat("termio.h"         HAVE_TERMIO_H)
check_include_file_concat("termios.h"        HAVE_TERMIOS_H)
check_include_file_concat("time.h"           HAVE_TIME_H)
check_include_file_concat("unistd.h"         HAVE_UNISTD_H)
check_include_file_concat("utime.h"          HAVE_UTIME_H)
check_include_file_concat("x509.h"           HAVE_X509_H)

check_include_file_concat("process.h"        HAVE_PROCESS_H)
check_include_file_concat("stddef.h"         HAVE_STDDEF_H)
check_include_file_concat("dlfcn.h"          HAVE_DLFCN_H)
check_include_file_concat("malloc.h"         HAVE_MALLOC_H)
check_include_file_concat("memory.h"         HAVE_MEMORY_H)
check_include_file_concat("netinet/if_ether.h" HAVE_NETINET_IF_ETHER_H)
check_include_file_concat("stdint.h"        HAVE_STDINT_H)
check_include_file_concat("sockio.h"        HAVE_SOCKIO_H)
check_include_file_concat("sys/utsname.h"   HAVE_SYS_UTSNAME_H)

check_type_size(size_t  SIZEOF_SIZE_T)
check_type_size(ssize_t  SIZEOF_SSIZE_T)
check_type_size("long long"  SIZEOF_LONG_LONG)
check_type_size("long"  SIZEOF_LONG)
check_type_size("short"  SIZEOF_SHORT)
check_type_size("int"  SIZEOF_INT)
check_type_size("__int64"  SIZEOF___INT64)
check_type_size("long double"  SIZEOF_LONG_DOUBLE)
check_type_size("time_t"  SIZEOF_TIME_T)
if(NOT HAVE_SIZEOF_SSIZE_T)
  if(SIZEOF_LONG EQUAL SIZEOF_SIZE_T)
    set(ssize_t long)
  endif(SIZEOF_LONG EQUAL SIZEOF_SIZE_T)
  if(NOT ssize_t AND SIZEOF___INT64 EQUAL SIZEOF_SIZE_T)
    set(ssize_t __int64)
  endif(NOT ssize_t AND SIZEOF___INT64 EQUAL SIZEOF_SIZE_T)
endif(NOT HAVE_SIZEOF_SSIZE_T)
# off_t is sized later, after the HAVE_FILE_OFFSET_BITS test

# Different sizeofs, etc.

#    define CURL_SIZEOF_LONG        4
#    define CURL_TYPEOF_CURL_OFF_T  long long
#    define CURL_FORMAT_CURL_OFF_T  "lld"
#    define CURL_FORMAT_CURL_OFF_TU "llu"
#    define CURL_FORMAT_OFF_T       "%lld"
#    define CURL_SIZEOF_CURL_OFF_T  8
#    define CURL_SUFFIX_CURL_OFF_T  LL
#    define CURL_SUFFIX_CURL_OFF_TU ULL

set(CURL_SIZEOF_LONG ${SIZEOF_LONG})

if(SIZEOF_LONG EQUAL 8)
  set(CURL_TYPEOF_CURL_OFF_T long)
  set(CURL_SIZEOF_CURL_OFF_T 8)
  set(CURL_FORMAT_CURL_OFF_T "ld")
  set(CURL_FORMAT_CURL_OFF_TU "lu")
  set(CURL_FORMAT_OFF_T "%ld")
  set(CURL_SUFFIX_CURL_OFF_T L)
  set(CURL_SUFFIX_CURL_OFF_TU UL)
endif(SIZEOF_LONG EQUAL 8)

if(SIZEOF_LONG_LONG EQUAL 8)
  set(CURL_TYPEOF_CURL_OFF_T "long long")
  set(CURL_SIZEOF_CURL_OFF_T 8)
  set(CURL_FORMAT_CURL_OFF_T "lld")
  set(CURL_FORMAT_CURL_OFF_TU "llu")
  set(CURL_FORMAT_OFF_T "%lld")
  set(CURL_SUFFIX_CURL_OFF_T LL)
  set(CURL_SUFFIX_CURL_OFF_TU ULL)
endif(SIZEOF_LONG_LONG EQUAL 8)

if(NOT CURL_TYPEOF_CURL_OFF_T)
  set(CURL_TYPEOF_CURL_OFF_T ${ssize_t})
  set(CURL_SIZEOF_CURL_OFF_T ${SIZEOF_SSIZE_T})
  # TODO: need adjustment here.
  set(CURL_FORMAT_CURL_OFF_T "ld")
  set(CURL_FORMAT_CURL_OFF_TU "lu")
  set(CURL_FORMAT_OFF_T "%ld")
  set(CURL_SUFFIX_CURL_OFF_T L)
  set(CURL_SUFFIX_CURL_OFF_TU LU)
endif(NOT CURL_TYPEOF_CURL_OFF_T)

if(HAVE_SIZEOF_LONG_LONG)
  set(HAVE_LONGLONG 1)
  set(HAVE_LL 1)
endif(HAVE_SIZEOF_LONG_LONG)

find_file(RANDOM_FILE urandom /dev)
mark_as_advanced(RANDOM_FILE)

# Check for some functions that are used
if(HAVE_LIBWS2_32)
  set(CMAKE_REQUIRED_LIBRARIES ws2_32)
elseif(HAVE_LIBSOCKET)
  set(CMAKE_REQUIRED_LIBRARIES socket)
endif()

check_symbol_exists(basename      "${CURL_INCLUDES}" HAVE_BASENAME)
check_symbol_exists(socket        "${CURL_INCLUDES}" HAVE_SOCKET)
# poll on macOS is unreliable, it first did not exist, then was broken until
# fixed in 10.9 only to break again in 10.12.
if(NOT APPLE)
  check_symbol_exists(poll        "${CURL_INCLUDES}" HAVE_POLL)
endif()
check_symbol_exists(select        "${CURL_INCLUDES}" HAVE_SELECT)
check_symbol_exists(strdup        "${CURL_INCLUDES}" HAVE_STRDUP)
check_symbol_exists(strstr        "${CURL_INCLUDES}" HAVE_STRSTR)
check_symbol_exists(strtok_r      "${CURL_INCLUDES}" HAVE_STRTOK_R)
check_symbol_exists(strftime      "${CURL_INCLUDES}" HAVE_STRFTIME)
check_symbol_exists(uname         "${CURL_INCLUDES}" HAVE_UNAME)
check_symbol_exists(strcasecmp    "${CURL_INCLUDES}" HAVE_STRCASECMP)
check_symbol_exists(stricmp       "${CURL_INCLUDES}" HAVE_STRICMP)
check_symbol_exists(strcmpi       "${CURL_INCLUDES}" HAVE_STRCMPI)
check_symbol_exists(strncmpi      "${CURL_INCLUDES}" HAVE_STRNCMPI)
check_symbol_exists(alarm         "${CURL_INCLUDES}" HAVE_ALARM)
if(NOT HAVE_STRNCMPI)
  set(HAVE_STRCMPI)
endif(NOT HAVE_STRNCMPI)
check_symbol_exists(gethostbyaddr "${CURL_INCLUDES}" HAVE_GETHOSTBYADDR)
check_symbol_exists(gethostbyaddr_r "${CURL_INCLUDES}" HAVE_GETHOSTBYADDR_R)
check_symbol_exists(gettimeofday  "${CURL_INCLUDES}" HAVE_GETTIMEOFDAY)
check_symbol_exists(inet_addr     "${CURL_INCLUDES}" HAVE_INET_ADDR)
check_symbol_exists(inet_ntoa     "${CURL_INCLUDES}" HAVE_INET_NTOA)
check_symbol_exists(inet_ntoa_r   "${CURL_INCLUDES}" HAVE_INET_NTOA_R)
check_symbol_exists(tcsetattr     "${CURL_INCLUDES}" HAVE_TCSETATTR)
check_symbol_exists(tcgetattr     "${CURL_INCLUDES}" HAVE_TCGETATTR)
check_symbol_exists(perror        "${CURL_INCLUDES}" HAVE_PERROR)
check_symbol_exists(closesocket   "${CURL_INCLUDES}" HAVE_CLOSESOCKET)
check_symbol_exists(setvbuf       "${CURL_INCLUDES}" HAVE_SETVBUF)
check_symbol_exists(sigsetjmp     "${CURL_INCLUDES}" HAVE_SIGSETJMP)
check_symbol_exists(getpass_r     "${CURL_INCLUDES}" HAVE_GETPASS_R)
check_symbol_exists(strlcat       "${CURL_INCLUDES}" HAVE_STRLCAT)
check_symbol_exists(getpwuid      "${CURL_INCLUDES}" HAVE_GETPWUID)
check_symbol_exists(geteuid       "${CURL_INCLUDES}" HAVE_GETEUID)
check_symbol_exists(utime         "${CURL_INCLUDES}" HAVE_UTIME)
check_symbol_exists(gmtime_r      "${CURL_INCLUDES}" HAVE_GMTIME_R)
check_symbol_exists(localtime_r   "${CURL_INCLUDES}" HAVE_LOCALTIME_R)

check_symbol_exists(gethostbyname   "${CURL_INCLUDES}" HAVE_GETHOSTBYNAME)
check_symbol_exists(gethostbyname_r "${CURL_INCLUDES}" HAVE_GETHOSTBYNAME_R)

check_symbol_exists(signal        "${CURL_INCLUDES}" HAVE_SIGNAL_FUNC)
check_symbol_exists(SIGALRM       "${CURL_INCLUDES}" HAVE_SIGNAL_MACRO)
if(HAVE_SIGNAL_FUNC AND HAVE_SIGNAL_MACRO)
  set(HAVE_SIGNAL 1)
endif(HAVE_SIGNAL_FUNC AND HAVE_SIGNAL_MACRO)
check_symbol_exists(uname          "${CURL_INCLUDES}" HAVE_UNAME)
check_symbol_exists(strtoll        "${CURL_INCLUDES}" HAVE_STRTOLL)
check_symbol_exists(_strtoi64      "${CURL_INCLUDES}" HAVE__STRTOI64)
check_symbol_exists(strerror_r     "${CURL_INCLUDES}" HAVE_STRERROR_R)
check_symbol_exists(siginterrupt   "${CURL_INCLUDES}" HAVE_SIGINTERRUPT)
check_symbol_exists(perror         "${CURL_INCLUDES}" HAVE_PERROR)
check_symbol_exists(fork           "${CURL_INCLUDES}" HAVE_FORK)
check_symbol_exists(getaddrinfo    "${CURL_INCLUDES}" HAVE_GETADDRINFO)
check_symbol_exists(freeaddrinfo   "${CURL_INCLUDES}" HAVE_FREEADDRINFO)
check_symbol_exists(freeifaddrs    "${CURL_INCLUDES}" HAVE_FREEIFADDRS)
check_symbol_exists(pipe           "${CURL_INCLUDES}" HAVE_PIPE)
check_symbol_exists(ftruncate      "${CURL_INCLUDES}" HAVE_FTRUNCATE)
check_symbol_exists(getprotobyname "${CURL_INCLUDES}" HAVE_GETPROTOBYNAME)
check_symbol_exists(getrlimit      "${CURL_INCLUDES}" HAVE_GETRLIMIT)
check_symbol_exists(setlocale      "${CURL_INCLUDES}" HAVE_SETLOCALE)
check_symbol_exists(setrlimit      "${CURL_INCLUDES}" HAVE_SETRLIMIT)
check_symbol_exists(fcntl          "${CURL_INCLUDES}" HAVE_FCNTL)
check_symbol_exists(ioctl          "${CURL_INCLUDES}" HAVE_IOCTL)
check_symbol_exists(setsockopt     "${CURL_INCLUDES}" HAVE_SETSOCKOPT)

# symbol exists in win32, but function does not.
if(ENABLE_INET_PTON)  
  check_function_exists(inet_pton HAVE_INET_PTON)
endif()

check_symbol_exists(fsetxattr "${CURL_INCLUDES}" HAVE_FSETXATTR)
if(HAVE_FSETXATTR)
  foreach(CURL_TEST HAVE_FSETXATTR_5 HAVE_FSETXATTR_6)
    curl_internal_test_run(${CURL_TEST})
  endforeach(CURL_TEST)
endif(HAVE_FSETXATTR)

# sigaction and sigsetjmp are special. Use special mechanism for
# detecting those, but only if previous attempt failed.
if(HAVE_SIGNAL_H)
  check_symbol_exists(sigaction "signal.h" HAVE_SIGACTION)
endif(HAVE_SIGNAL_H)

if(NOT HAVE_SIGSETJMP)
  if(HAVE_SETJMP_H)
    check_symbol_exists(sigsetjmp "setjmp.h" HAVE_MACRO_SIGSETJMP)
    if(HAVE_MACRO_SIGSETJMP)
      set(HAVE_SIGSETJMP 1)
    endif(HAVE_MACRO_SIGSETJMP)
  endif(HAVE_SETJMP_H)
endif(NOT HAVE_SIGSETJMP)

# If there is no stricmp(), do not allow LDAP to parse URLs
if(NOT HAVE_STRICMP)
  set(HAVE_LDAP_URL_PARSE 1)
endif(NOT HAVE_STRICMP)

# Do curl specific tests
foreach(CURL_TEST
    HAVE_FCNTL_O_NONBLOCK
    HAVE_IOCTLSOCKET
    HAVE_IOCTLSOCKET_CAMEL
    HAVE_IOCTLSOCKET_CAMEL_FIONBIO
    HAVE_IOCTLSOCKET_FIONBIO
    HAVE_IOCTL_FIONBIO
    HAVE_IOCTL_SIOCGIFADDR
    HAVE_SETSOCKOPT_SO_NONBLOCK
    HAVE_SOCKADDR_IN6_SIN6_SCOPE_ID
    TIME_WITH_SYS_TIME
    HAVE_O_NONBLOCK
    HAVE_GETHOSTBYADDR_R_5
    HAVE_GETHOSTBYADDR_R_7
    HAVE_GETHOSTBYADDR_R_8
    HAVE_GETHOSTBYADDR_R_5_REENTRANT
    HAVE_GETHOSTBYADDR_R_7_REENTRANT
    HAVE_GETHOSTBYADDR_R_8_REENTRANT
    HAVE_GETHOSTBYNAME_R_3
    HAVE_GETHOSTBYNAME_R_5
    HAVE_GETHOSTBYNAME_R_6
    HAVE_GETHOSTBYNAME_R_3_REENTRANT
    HAVE_GETHOSTBYNAME_R_5_REENTRANT
    HAVE_GETHOSTBYNAME_R_6_REENTRANT
    HAVE_SOCKLEN_T
    HAVE_IN_ADDR_T
    HAVE_BOOL_T
    STDC_HEADERS
    RETSIGTYPE_TEST
    HAVE_INET_NTOA_R_DECL
    HAVE_INET_NTOA_R_DECL_REENTRANT
    HAVE_GETADDRINFO
    HAVE_FILE_OFFSET_BITS
    )
  curl_internal_test(${CURL_TEST})
endforeach(CURL_TEST)

if(HAVE_FILE_OFFSET_BITS)
  set(_FILE_OFFSET_BITS 64)
  set(CMAKE_REQUIRED_FLAGS "-D_FILE_OFFSET_BITS=64")
endif(HAVE_FILE_OFFSET_BITS)
check_type_size("off_t"  SIZEOF_OFF_T)
set(CMAKE_REQUIRED_FLAGS)

foreach(CURL_TEST
    HAVE_GLIBC_STRERROR_R
    HAVE_POSIX_STRERROR_R
    )
  curl_internal_test_run(${CURL_TEST})
endforeach(CURL_TEST)

# Check for reentrant
foreach(CURL_TEST
    HAVE_GETHOSTBYADDR_R_5
    HAVE_GETHOSTBYADDR_R_7
    HAVE_GETHOSTBYADDR_R_8
    HAVE_GETHOSTBYNAME_R_3
    HAVE_GETHOSTBYNAME_R_5
    HAVE_GETHOSTBYNAME_R_6
    HAVE_INET_NTOA_R_DECL_REENTRANT)
  if(NOT ${CURL_TEST})
    if(${CURL_TEST}_REENTRANT)
      set(NEED_REENTRANT 1)
    endif(${CURL_TEST}_REENTRANT)
  endif(NOT ${CURL_TEST})
endforeach(CURL_TEST)

if(NEED_REENTRANT)
  foreach(CURL_TEST
      HAVE_GETHOSTBYADDR_R_5
      HAVE_GETHOSTBYADDR_R_7
      HAVE_GETHOSTBYADDR_R_8
      HAVE_GETHOSTBYNAME_R_3
      HAVE_GETHOSTBYNAME_R_5
      HAVE_GETHOSTBYNAME_R_6)
    set(${CURL_TEST} 0)
    if(${CURL_TEST}_REENTRANT)
      set(${CURL_TEST} 1)
    endif(${CURL_TEST}_REENTRANT)
  endforeach(CURL_TEST)
endif(NEED_REENTRANT)

if(HAVE_INET_NTOA_R_DECL_REENTRANT)
  set(HAVE_INET_NTOA_R_DECL 1)
  set(NEED_REENTRANT 1)
endif(HAVE_INET_NTOA_R_DECL_REENTRANT)

# Some other minor tests

if(NOT HAVE_IN_ADDR_T)
  set(in_addr_t "unsigned long")
endif(NOT HAVE_IN_ADDR_T)

# Fix libz / zlib.h

if(NOT CURL_SPECIAL_LIBZ)
  if(NOT HAVE_LIBZ)
    set(HAVE_ZLIB_H 0)
  endif(NOT HAVE_LIBZ)

  if(NOT HAVE_ZLIB_H)
    set(HAVE_LIBZ 0)
  endif(NOT HAVE_ZLIB_H)
endif(NOT CURL_SPECIAL_LIBZ)

# Check for nonblocking
set(HAVE_DISABLED_NONBLOCKING 1)
if(HAVE_FIONBIO OR
    HAVE_IOCTLSOCKET OR
    HAVE_IOCTLSOCKET_CASE OR
    HAVE_O_NONBLOCK)
  set(HAVE_DISABLED_NONBLOCKING)
endif(HAVE_FIONBIO OR
  HAVE_IOCTLSOCKET OR
  HAVE_IOCTLSOCKET_CASE OR
  HAVE_O_NONBLOCK)

if(RETSIGTYPE_TEST)
  set(RETSIGTYPE void)
else(RETSIGTYPE_TEST)
  set(RETSIGTYPE int)
endif(RETSIGTYPE_TEST)

if(CMAKE_COMPILER_IS_GNUCC AND APPLE)
  include(CheckCCompilerFlag)
  check_c_compiler_flag(-Wno-long-double HAVE_C_FLAG_Wno_long_double)
  if(HAVE_C_FLAG_Wno_long_double)
    # The Mac version of GCC warns about use of long double.  Disable it.
    get_source_file_property(MPRINTF_COMPILE_FLAGS mprintf.c COMPILE_FLAGS)
    if(MPRINTF_COMPILE_FLAGS)
      set(MPRINTF_COMPILE_FLAGS "${MPRINTF_COMPILE_FLAGS} -Wno-long-double")
    else(MPRINTF_COMPILE_FLAGS)
      set(MPRINTF_COMPILE_FLAGS "-Wno-long-double")
    endif(MPRINTF_COMPILE_FLAGS)
    set_source_files_properties(mprintf.c PROPERTIES
      COMPILE_FLAGS ${MPRINTF_COMPILE_FLAGS})
  endif(HAVE_C_FLAG_Wno_long_double)
endif(CMAKE_COMPILER_IS_GNUCC AND APPLE)

if(HAVE_SOCKLEN_T)
  set(CURL_TYPEOF_CURL_SOCKLEN_T "socklen_t")
  if(WIN32)
    set(CMAKE_EXTRA_INCLUDE_FILES "winsock2.h;ws2tcpip.h")
  elseif(HAVE_SYS_SOCKET_H)
    set(CMAKE_EXTRA_INCLUDE_FILES "sys/socket.h")
  endif()
  check_type_size("socklen_t" CURL_SIZEOF_CURL_SOCKLEN_T)
  set(CMAKE_EXTRA_INCLUDE_FILES)
  if(NOT HAVE_CURL_SIZEOF_CURL_SOCKLEN_T)
    message(FATAL_ERROR
     "Check for sizeof socklen_t failed, see CMakeFiles/CMakerror.log")
  endif()
else()
  set(CURL_TYPEOF_CURL_SOCKLEN_T int)
  set(CURL_SIZEOF_CURL_SOCKLEN_T ${SIZEOF_INT})
endif()

# TODO test which of these headers are required
if(WIN32)
  set(CURL_PULL_WS2TCPIP_H ${HAVE_WS2TCPIP_H})
else()
  set(CURL_PULL_SYS_TYPES_H ${HAVE_SYS_TYPES_H})
  set(CURL_PULL_SYS_SOCKET_H ${HAVE_SYS_SOCKET_H})
  set(CURL_PULL_SYS_POLL_H ${HAVE_SYS_POLL_H})
endif()
set(CURL_PULL_STDINT_H ${HAVE_STDINT_H})
set(CURL_PULL_INTTYPES_H ${HAVE_INTTYPES_H})

include(CMake/OtherTests.cmake)

add_definitions(-DHAVE_CONFIG_H)

# For windows, do not allow the compiler to use default target (Vista).
if(WIN32)
  add_definitions(-D_WIN32_WINNT=0x0501)
endif(WIN32)

# For windows, all compilers used by cmake should support large files
if(WIN32)
  set(USE_WIN32_LARGE_FILES ON)
endif(WIN32)

if(MSVC)
  add_definitions(-D_CRT_SECURE_NO_DEPRECATE -D_CRT_NONSTDC_NO_DEPRECATE)
endif(MSVC)

# Ugly (but functional) way to include "Makefile.inc" by transforming it (= regenerate it).
function(TRANSFORM_MAKEFILE_INC INPUT_FILE OUTPUT_FILE)
  file(READ ${INPUT_FILE} MAKEFILE_INC_TEXT)
  string(REPLACE "$(top_srcdir)"   "\${CURL_SOURCE_DIR}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  string(REPLACE "$(top_builddir)" "\${CURL_BINARY_DIR}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})

  string(REGEX REPLACE "\\\\\n" "!π!α!" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  string(REGEX REPLACE "([a-zA-Z_][a-zA-Z0-9_]*)[\t ]*=[\t ]*([^\n]*)" "SET(\\1 \\2)" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})
  string(REPLACE "!π!α!" "\n" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})

  string(REGEX REPLACE "\\$\\(([a-zA-Z_][a-zA-Z0-9_]*)\\)" "\${\\1}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})    # Replace $() with ${}
  string(REGEX REPLACE "@([a-zA-Z_][a-zA-Z0-9_]*)@" "\${\\1}" MAKEFILE_INC_TEXT ${MAKEFILE_INC_TEXT})    # Replace @@ with ${}, even if that may not be read by CMake scripts.
  file(WRITE ${OUTPUT_FILE} ${MAKEFILE_INC_TEXT})

endfunction()

add_subdirectory(docs)
add_subdirectory(lib)
if(BUILD_CURL_EXE)
  add_subdirectory(src)
endif()

include(CTest)
if(BUILD_TESTING)
  add_subdirectory(tests)
endif()

# Helper to populate a list (_items) with a label when conditions (the remaining
# args) are satisfied
function(_add_if label)
  # TODO need to disable policy CMP0054 (CMake 3.1) to allow this indirection
  if(${ARGN})
    set(_items ${_items} "${label}" PARENT_SCOPE)
  endif()
endfunction()

# Clear list and try to detect available features
set(_items)
_add_if("WinSSL"        SSL_ENABLED AND USE_WINDOWS_SSPI)
_add_if("OpenSSL"       SSL_ENABLED AND USE_OPENSSL)
_add_if("DarwinSSL"     SSL_ENABLED AND USE_DARWINSSL)
_add_if("mbedTLS"       SSL_ENABLED AND USE_MBEDTLS)
_add_if("IPv6"          ENABLE_IPV6)
_add_if("unix-sockets"  USE_UNIX_SOCKETS)
_add_if("libz"          HAVE_LIBZ)
_add_if("AsynchDNS"     USE_ARES OR USE_THREADS_POSIX OR USE_THREADS_WIN32)
_add_if("IDN"           HAVE_LIBIDN2)
_add_if("Largefile"     (CURL_SIZEOF_CURL_OFF_T GREATER 4) AND
                        ((SIZEOF_OFF_T GREATER 4) OR USE_WIN32_LARGE_FILES))
# TODO SSP1 (WinSSL) check is missing
_add_if("SSPI"          USE_WINDOWS_SSPI)
_add_if("GSS-API"       HAVE_GSSAPI)
# TODO SSP1 missing for SPNEGO
_add_if("SPNEGO"        NOT CURL_DISABLE_CRYPTO_AUTH AND
                        (HAVE_GSSAPI OR USE_WINDOWS_SSPI))
_add_if("Kerberos"      NOT CURL_DISABLE_CRYPTO_AUTH AND
                        (HAVE_GSSAPI OR USE_WINDOWS_SSPI))
# NTLM support requires crypto function adaptions from various SSL libs
# TODO alternative SSL libs tests for SSP1, GNUTLS, NSS
if(NOT CURL_DISABLE_CRYPTO_AUTH AND (USE_OPENSSL OR USE_WINDOWS_SSPI OR USE_DARWINSSL OR USE_MBEDTLS))
  _add_if("NTLM"        1)
  # TODO missing option (autoconf: --enable-ntlm-wb)
  _add_if("NTLM_WB"     NOT CURL_DISABLE_HTTP AND NTLM_WB_ENABLED)
endif()
# TODO missing option (--enable-tls-srp), depends on GNUTLS_SRP/OPENSSL_SRP
_add_if("TLS-SRP"       USE_TLS_SRP)
# TODO option --with-nghttp2 tests for nghttp2 lib and nghttp2/nghttp2.h header
_add_if("HTTP2"         USE_NGHTTP2)
string(REPLACE ";" " " SUPPORT_FEATURES "${_items}")
message(STATUS "Enabled features: ${SUPPORT_FEATURES}")

# Clear list and try to detect available protocols
set(_items)
_add_if("HTTP"          NOT CURL_DISABLE_HTTP)
_add_if("HTTPS"         NOT CURL_DISABLE_HTTP AND SSL_ENABLED)
_add_if("FTP"           NOT CURL_DISABLE_FTP)
_add_if("FTPS"          NOT CURL_DISABLE_FTP AND SSL_ENABLED)
_add_if("FILE"          NOT CURL_DISABLE_FILE)
_add_if("TELNET"        NOT CURL_DISABLE_TELNET)
_add_if("LDAP"          NOT CURL_DISABLE_LDAP)
# CURL_DISABLE_LDAP implies CURL_DISABLE_LDAPS
# TODO check HAVE_LDAP_SSL (in autoconf this is enabled with --enable-ldaps)
_add_if("LDAPS"         NOT CURL_DISABLE_LDAPS AND
                        ((USE_OPENLDAP AND SSL_ENABLED) OR
                        (NOT USE_OPENLDAP AND HAVE_LDAP_SSL)))
_add_if("DICT"          NOT CURL_DISABLE_DICT)
_add_if("TFTP"          NOT CURL_DISABLE_TFTP)
_add_if("GOPHER"        NOT CURL_DISABLE_GOPHER)
_add_if("POP3"          NOT CURL_DISABLE_POP3)
_add_if("POP3S"         NOT CURL_DISABLE_POP3 AND SSL_ENABLED)
_add_if("IMAP"          NOT CURL_DISABLE_IMAP)
_add_if("IMAPS"         NOT CURL_DISABLE_IMAP AND SSL_ENABLED)
_add_if("SMTP"          NOT CURL_DISABLE_SMTP)
_add_if("SMTPS"         NOT CURL_DISABLE_SMTP AND SSL_ENABLED)
_add_if("SCP"           USE_LIBSSH2)
_add_if("SFTP"          USE_LIBSSH2)
_add_if("RTSP"          NOT CURL_DISABLE_RTSP)
_add_if("RTMP"          USE_LIBRTMP)
list(SORT _items)
string(REPLACE ";" " " SUPPORT_PROTOCOLS "${_items}")
message(STATUS "Enabled protocols: ${SUPPORT_PROTOCOLS}")

# curl-config needs the following options to be set.
set(CC                      "${CMAKE_C_COMPILER}")
# TODO probably put a -D... options here?
set(CONFIGURE_OPTIONS       "")
# TODO when to set "-DCURL_STATICLIB" for CPPFLAG_CURL_STATICLIB?
set(CPPFLAG_CURL_STATICLIB  "")
set(CURLVERSION             "${CURL_VERSION}")
set(ENABLE_SHARED           "yes")
if(CURL_STATICLIB)
  set(ENABLE_STATIC         "yes")
else()
  set(ENABLE_STATIC         "no")
endif()
set(exec_prefix             "\${prefix}")
set(includedir              "\${prefix}/include")
set(LDFLAGS                 "${CMAKE_SHARED_LINKER_FLAGS}")
set(LIBCURL_LIBS            "")
set(libdir                  "${CMAKE_INSTALL_PREFIX}/lib")
foreach(_lib ${CMAKE_C_IMPLICIT_LINK_LIBRARIES} ${CURL_LIBS})
  if(_lib MATCHES ".*/.*")
    set(LIBCURL_LIBS          "${LIBCURL_LIBS} ${_lib}")
  else()
    set(LIBCURL_LIBS          "${LIBCURL_LIBS} -l${_lib}")
  endif()
endforeach()
# "a" (Linux) or "lib" (Windows)
string(REPLACE "." "" libext "${CMAKE_STATIC_LIBRARY_SUFFIX}")
set(prefix                  "${CMAKE_INSTALL_PREFIX}")
# Set this to "yes" to append all libraries on which -lcurl is dependent
set(REQUIRE_LIB_DEPS        "no")
# SUPPORT_FEATURES
# SUPPORT_PROTOCOLS
set(VERSIONNUM              "${CURL_VERSION_NUM}")

# Finally generate a "curl-config" matching this config
configure_file("${CURL_SOURCE_DIR}/curl-config.in"
               "${CURL_BINARY_DIR}/curl-config" @ONLY)
install(FILES "${CURL_BINARY_DIR}/curl-config"
        DESTINATION bin
        PERMISSIONS
          OWNER_READ OWNER_WRITE OWNER_EXECUTE
          GROUP_READ GROUP_EXECUTE
          WORLD_READ WORLD_EXECUTE)

# Finally generate a pkg-config file matching this config
configure_file("${CURL_SOURCE_DIR}/libcurl.pc.in"
               "${CURL_BINARY_DIR}/libcurl.pc" @ONLY)
install(FILES "${CURL_BINARY_DIR}/libcurl.pc"
        DESTINATION lib/pkgconfig)

# This needs to be run very last so other parts of the scripts can take advantage of this.
if(NOT CURL_CONFIG_HAS_BEEN_RUN_BEFORE)
  set(CURL_CONFIG_HAS_BEEN_RUN_BEFORE 1 CACHE INTERNAL "Flag to track whether this is the first time running CMake or if CMake has been configured before")
endif()

# install headers
install(DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}/include/curl"
    DESTINATION include
    FILES_MATCHING PATTERN "*.h")

# Workaround for MSVS10 to avoid the Dialog Hell
# FIXME: This could be removed with future version of CMake.
if(MSVC_VERSION EQUAL 1600)
  set(CURL_SLN_FILENAME "${CMAKE_CURRENT_BINARY_DIR}/CURL.sln")
  if(EXISTS "${CURL_SLN_FILENAME}")
    file(APPEND "${CURL_SLN_FILENAME}" "\n# This should be regenerated!\n")
  endif()
endif()