-
Notifications
You must be signed in to change notification settings - Fork 522
/
auto.def
1354 lines (1299 loc) · 49.6 KB
/
auto.def
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
#/do/not/tclsh
# ^^^ help out editors which guess this file's content type.
#
# This is the main autosetup-compatible configure script for the
# SQLite project.
#
# This script should be kept compatible with JimTCL, a copy of which
# is included in this source tree as ./autosetup/jimsh0.c. The number
# of incompatibilities between canonical TCL and JimTCL is very low
# and alternative formulations of incompatible constructs have, so
# far, been easy to find.
#
# JimTCL: https://jim.tcl.tk
#
use cc cc-db cc-shared cc-lib proj
# $DUMP_DEFINES_TXT is the file emitted by --dump-defines, intended
# only for build debugging and not part of the public build interface.
set DUMP_DEFINES_TXT ./config.defines.txt
# $DUMP_DEFINES_JSON is the autosetup counterpart of the historical
# "DEFS" var which was generated by the autotools in the pre-processed
# autotools builds (but not in the canonical tree). Generation of this
# file is disabled (via an empty file name) until/unless someone
# voices a specific interest in it. The original motivating use case
# is handled fine by sqlite_cfg.h.
set DUMP_DEFINES_JSON ""; #./config.defines.json
########################################################################
# Regarding flag compatibility with the historical autotool configure
# script:
#
# A very long story made short, autosetup's --flag handling has
# some behaviors which make it impossible to implement 100% identical
# flags compared to the historical autotools build. The differences
# are documented here:
#
# 1) --debug is used by autosetup itself, so we have to rename it to
# --with-debug. We cannot use --enable-debug because that is, for
# autosetup, and alias for --debug=1.
#
# 2) In autosetup, all flags starting with (--enable, --disable) are
# forced to be booleans and receive special handling in how they're
# resolved. Because of that we have to rename:
#
# 2.1) --enable-tempstore[=no] to --with-tempstore[=no].
#
########################################################################
# A gentle introduction to flags handling in autosetup
#
# Reference: https://msteveb.github.io/autosetup/developer/
#
# All configure flags must be described in an 'options' call, which
# must appear very early on in this script. The general syntax is:
#
# FLAG => {Help text}
#
# Where FLAG can have any of the following formats:
#
# boolopt => "a boolean option which defaults to disabled"
# boolopt2=1 => "a boolean option which defaults to enabled"
# stringopt: => "an option which takes an argument, e.g. --stringopt=value"
# stringopt2:=value => "an option where the argument is optional and defaults to 'value'"
# optalias booltopt3 => "a boolean with a hidden alias. --optalias is not shown in --help"
#
# Autosetup does no small amount of specialized handling for flags,
# especially booleans. Each bool-type --FLAG implicitly gets
# --enable-FLAG and --disable-FLAG forms, and explicitly adding flags
# with those prefixes will force them to be boolean flags. e.g. we
# define a flag "readline", which will be interpreted in one of two
# ways, depending on how it's invoked and how its default is defined:
#
# --enable-readline ==> boolean true
# --disable-readline ==> boolean false
#
# Trying to pass --readline or --readline=1 or --readline=0 will
# result in an "unrecognized option" error, despite the the [options]
# call listing the flag as "readline".
#
# The behavior described above can lead lead to some confusion when
# writing help text. For example:
#
# options { json=1 {Disable JSON functions} }
#
# The reason the help text says "disable" is because a boolean option
# defaulting to true is, in the --help text, rendered as:
#
# --disable-json Disable JSON functions
#
# Whereas a bool flag which defaults to false will instead render as:
#
# --enable-FLAG
#
# Non-boolean flags, in contrast, use the names specifically given to
# them in the [options] invocation. e.g. "with-tcl" is the --with-tcl
# flag. Autosetup may, however, choose to automatically alter the help
# text, as demonstrated here:
#
# options {
# readline=1 => {Disable readline support}
# with-readline-lib: => {Readline library}
# with-readline-inc: => {Readline include paths}
# }
#
# $ ./configure --help | grep readline
# --disable-readline disable readline support
# --with-readline-lib specify readline library
# --with-readline-inc specify readline include paths
#
# Note that it prefixed and lower-case the help message. Whether
# that's a feature or a bug can be debated.
#
# Fetching values for flags:
#
# booleans: use one of:
# - [opt-bool FLAG] is autosetup's built-in command for this, but we
# have some convenience variants:
# - [proj-opt-truthy FLAG]
# - [proj-opt-if-truthy FLAG {THEN} {ELSE}]
#
# Non-boolean (i.e. string) flags:
# - [opt-val FLAG ?default?]
#
########################################################################
set flags {
# <build-modes>
with-debug:=1 => {Enable debug build flags}
shared=1 => {Disable build of shared libary}
static=1 => {Disable build of static library (mostly)}
amalgamation=1 => {Disable the amalgamation and instead build all files separately.}
# </build-modes>
# <lib-feature>
threadsafe=1 => {Disable mutexing}
with-tempstore:=no => {Use an in-RAM database for temporary tables: never,no,yes,always}
largefile=1 => {Disable large file support}
load-extension=1 => {Disable loading of external extensions}
math=1 => {Disable math functions}
json=1 => {Disable JSON functions}
memsys5 => {Enable MEMSYS5}
memsys3 => {Enable MEMSYS3}
fts3 => {Enable the FTS3 extension}
fts4 => {Enable the FTS4 extension}
fts5 => {Enable the FTS5 extension}
update-limit => {Enable the UPDATE/DELETE LIMIT clause}
geopoly => {Enable the GEOPOLY extension}
rtree => {Enable the RTREE extension}
session => {Enable the SESSION extension}
all => {Enable FTS4, FTS5, Geopoly, RTree, Sessions}
# </lib-feature>
# <tcl>
# --with-tcl=DIR may be either a dir containing tclConfig.sh or a
# dir one level up from that from which we can derive a dir
# containing tclConfig.sh.
with-tcl: => {Root of path containing tclConfig.sh}
# If --with-tclsh=X given, it is used for (A) trying to find
# tclConfig.sh and (B) all TCL-based code generation. Warning: if
# its containing dir has multiple tclsh versions, it may select the
# wrong tclConfig.sh!
with-tclsh:PATH => {Full pathname of tclsh to use}
# --disable-tcl disables building of components which require TCL,
# including tests. This tree requires TCL for code generation but
# can use the in-tree copy of autosetup/jimsh0.c for that. The
# SQLite TCL extension and the test code require a canonical tclsh.
tcl=1 => {Disable components which require TCL}
# <tcl>
# <line-editing>
readline=1 => {Disable readline support}
# --with-readline-lib is a backwards-compatible alias for
# --with-readline-ldflags
with-readline-lib:
with-readline-ldflags:=auto
=> {Readline LDFLAGS, e.g. -lreadline -lncurses}
# --with-readline-inc is a backwards-compatible alias for
# --with-readline-cflags.
with-readline-inc:
with-readline-cflags:=auto
=> {Readline CFLAGS, e.g. -I/path/to/includes}
with-readline-header:PATH
=> {Full path to readline.h, from which --with-readline-cflags will be derived}
with-linenoise:DIR => {Source directory for linenoise.c and linenoise.h}
editline=0 => {Enable BSD editline support}
# </line-editing>
# <icu>
with-icu-ldflags:LDFLAGS
=> {Enable SQLITE_ENABLE_ICU and add the given linker flags for the ICU libraries}
with-icu-cflags:CFLAGS
=> {Apply extra CFLAGS/CPPFLAGS necessary for building with ICU. e.g. -I/usr/local/include}
with-icu-config:=auto => {Enable SQLITE_ENABLE_ICU and fetch ldflags and cflags flags from the given icu-config binary}
icu-collations=0 => {Enable SQLITE_ENABLE_ICU_COLLATIONS. Requires --with-icu-ldflags=... or --with-icu-config}
# </icu>
# <alternative-builds>
with-wasi-sdk:=/opt/wasi-sdk
=> {Top-most dir of the wasi-sdk for a WASI build}
with-emsdk:=auto => {Top-most dir of the Emscripten SDK installation. Default = EMSDK env var.}
# </alternative-builds>
# <developer>
test-status => {Enable status of tests}
gcov=0 => {Enable coverage testing using gcov}
linemacros => {Enable #line macros in the amalgamation}
dev => {Enable dev-mode build: automatically enables certain other flags}
dump-defines=0 => {Dump autosetup defines to $DUMP_DEFINES_TXT (for build debugging)}
#soname:=none => {SONAME for libsqlite3.so}
#^^^ we "could", but arguably shouldn't, support clients passing a
# value of libsqlite3.so.0 for compatibility with clients which
# linked against a pre-3.48 build.
# Maybe we should support values of --soname=(none,auto,legacy), where auto means
# to use the 3.48+ value of libsqlite3.so.3..
# </developer>
}
if {"" ne $DUMP_DEFINES_JSON} {
lappend flags \
defines-json-include-lowercase=0 \
=> {Include lower-case defines (primarily system paths) in $DUMP_DEFINES_JSON}
}
options [subst -nobackslashes -nocommands $flags]
unset flags
#
# Carry values from hidden --flag aliases over to their canonical flag
# forms.
#
proj-xfer-options-aliases {
with-readline-inc => with-readline-cflags
with-readline-lib => with-readline-ldflags
}
set srcdir $::autosetup(srcdir)
set PACKAGE_VERSION [proj-file-content -trim $srcdir/VERSION]
define PACKAGE_NAME "sqlite"
define PACKAGE_URL {https://sqlite.org}
define PACKAGE_VERSION $PACKAGE_VERSION
define PACKAGE_STRING "[get-define PACKAGE_NAME] $PACKAGE_VERSION"
define PACKAGE_BUGREPORT [get-define PACKAGE_URL]/forum
msg-result "Source dir = $srcdir"
msg-result "Build dir = $::autosetup(builddir)"
msg-result "Configuring SQLite version $PACKAGE_VERSION"
if {1} {
#
# SQLITE_AUTORECONFIG contains make target rules for re-running the
# configure script with the same arguments it was initially invoked
# with. This can be used to automatically reconfigure
#
proc squote {arg} {
# Wrap $arg in single-quotes if it looks like it might need that
# to avoid mis-handling as a shell argument. We assume that $arg
# will never contain any single-quote characters.
if {[string match {*[ &;$*"]*} $arg]} { return '$arg' }
return $arg
}
define-append SQLITE_AUTORECONFIG cd [squote $::autosetup(builddir)] && [squote $srcdir/configure]
#{*}$::autosetup(argv) breaks with --flag='val with spaces', so...
foreach arg $::autosetup(argv) {
define-append SQLITE_AUTORECONFIG [squote $arg]
}
rename squote ""
}
# Are we cross-compiling?
set isCrossCompiling [proj-is-cross-compiling]
define OPT_FEATURE_FLAGS {} ; # -DSQLITE_OMIT/ENABLE flags.
define OPT_SHELL {} ; # Feature-related CFLAGS for the sqlite3 CLI app
########################################################################
# Adds $args, if not empty, to OPT_FEATURE_FLAGS. If the first arg is
# -shell then it strips that arg and passes the remaining args the
# sqlite-add-shell-opt in addition to adding them to
# OPT_FEATURE_FLAGS.
proc sqlite-add-feature-flag {args} {
set shell ""
if {"-shell" eq [lindex $args 0]} {
set args [lassign $args shell]
}
if {"" ne $args} {
if {"" ne $shell} {
sqlite-add-shell-opt {*}$args
}
define-append OPT_FEATURE_FLAGS {*}$args
}
}
# Appends $args, if not empty, to OPT_SHELL.
proc sqlite-add-shell-opt {args} {
if {"" ne $args} {
define-append OPT_SHELL {*}$args
}
}
# Pass msg-debug=1 to configure to enable obnoxiously loud output from
# msg-debug.
set msgDebugEnabled [proj-val-truthy [get-env msg-debug 0]]
proc msg-debug {msg} {
if {$::msgDebugEnabled} {
puts stderr [proj-bold "** DEBUG: $msg"]
}
}
proj-file-extensions
if {".exe" eq [get-define TARGET_EXEEXT]} {
define SQLITE_OS_UNIX 0
define SQLITE_OS_WIN 1
# todo? add -DSQLITE_OS_WIN=1 to CFLAGS or CFLAGS_sqlite3_os?
} else {
define SQLITE_OS_UNIX 1
define SQLITE_OS_WIN 0
# todo? add -DSQLITE_OS_UNIX=1 to CFLAGS or CFLAGS_sqlite3_os
}
#########
# Programs needed
cc-check-tools ld ar ; # must come before sqlite-check-wasi-sdk
if {"" eq [proj-bin-define install]} {
proj-warn "Cannot find install binary, so 'make install' will not work."
}
########################################################################
# We differentiate between two C compilers: the one used for binaries
# which are to run on the build system (in autosetup it's called
# CC_FOR_BUILD and in Makefile.in it's $(B.cc)) and the one used for
# compiling binaries for the target system (CC a.k.a. $(T.cc)).
# Normally they're the same, but they will differ when
# cross-compiling.
define CFLAGS [proj-get-env CFLAGS {-g -O2}]
define BUILD_CFLAGS [proj-get-env BUILD_CFLAGS {-g}]
########################################################################
# Handle --with-wasi-sdk=DIR
#
# This MUST be run early on because it may change the toolchain and
# disable a number of config options.
proc sqlite-check-wasi-sdk {} {
set wasiSdkDir [opt-val with-wasi-sdk] ; # ??? [lindex [opt-val with-wasi-sdk] end]
define HAVE_WASI_SDK 0
if {$wasiSdkDir eq ""} {
return 0
} elseif {$::isCrossCompiling} {
proj-fatal "Cannot combine --with-wasi-sdk with cross-compilation"
}
msg-result "Checking WASI SDK directory \[$wasiSdkDir]... "
#puts "prefix = [prefix $wasiSdkDir/bin {clang ld}]"
proj-affirm-files-exist -v {*}[prefix "$wasiSdkDir/bin/" {clang wasm-ld ar}]
define HAVE_WASI_SDK 1
define WASI_SDK_DIR $wasiSdkDir
# Disable numerous options which we know either can't work or are
# not useful in this build...
msg-result "Using wasi-sdk clang. Disabling CLI shell modifying config flags:"
# Boolean flags which must be switched off:
foreach opt {
editline
gcov
icu-collations
load-extension
readline
shared
tcl
threadsafe
} {
if {[opt-bool $opt]} {
msg-result " --disable-$opt"
proj-opt-set $opt 0
}
}
# Non-boolean flags which need to be cleared:
foreach opt {
with-emsdk
with-icu-config
with-icu-ldflags
with-icu-cflags
with-linenoise
with-tcl
} {
if {[proj-opt-was-provided $opt]} {
msg-result " removing --$opt"
proj-opt-set $opt ""
}
}
# Remember that we now have a discrepancy beteween
# $::isCrossCompiling and [proj-is-cross-compiling].
set ::isCrossCompiling 1
#
# Changing --host and --target have no effect here except to
# possibly cause confusion. Autosetup has finished processing them
# by this point.
#
# host_alias=wasm32-wasi
# target=wasm32-wasi
#
# Merely changing CC, LD, and AR to the wasi-sdk's is enough to get
# sqlite3.o building in WASM format.
#
define CC "${wasiSdkDir}/bin/clang"
define LD "${wasiSdkDir}/bin/wasm-ld"
define AR "${wasiSdkDir}/bin/ar"
#define STRIP "${wasiSdkDir}/bin/strip"
return 1
}; # sqlite-check-wasi-sdk
sqlite-check-wasi-sdk
#
# Enable large file support (if special flags are necessary)
define HAVE_LFS 0
if {[opt-bool largefile]} {
cc-check-lfs
}
#
# Check for needed/wanted data types
cc-with {-includes stdint.h} \
{cc-check-types int8_t int16_t int32_t int64_t intptr_t \
uint8_t uint16_t uint32_t uint64_t uintptr_t}
#
# Check for needed/wanted functions
cc-check-functions gmtime_r isnan localtime_r localtime_s \
malloc_usable_size strchrnul usleep utime pread pread64 pwrite pwrite64
proj-check-function-in-lib fdatasync rt
define LDFLAGS_FDATASYNC [get-define lib_fdatasync]
undefine lib_fdatasync
#
# Check for needed/wanted headers
cc-check-includes \
sys/types.h sys/stat.h dlfcn.h unistd.h \
stdlib.h malloc.h memory.h \
string.h strings.h \
inttypes.h
if {[cc-check-includes zlib.h] && [proj-check-function-in-lib deflate z]} {
# TODO? port over the more sophisticated zlib search from the fossil auto.def
define HAVE_ZLIB 1
define LDFLAGS_ZLIB -lz
sqlite-add-shell-opt -DSQLITE_HAVE_ZLIB=1
} else {
define HAVE_ZLIB 0
define LDFLAGS_ZLIB ""
}
proj-check-rpath ; # Determine proper rpath-handling flag
########################################################################
# It's not yet clear whether we gain anything from setting -soname,
# but not having it has been a source of anxiety for some users.
# Setting it to any value other than its historical value of
# libsqlite3.so.0 may (this is not certain) break dynamic linking of
# clients which initially linked against a legacy build.
#
# See discussion in/around:
# https://sqlite.org/forum/forumpost/0c6fc6f46b2cb3
proc sqlite-check-soname {} {
define LDFLAGS_SONAME_LIBSQLITE3 ""
if {[proj-opt-was-provided soname]} {
set soname [opt-val soname]
} else {
return 0
}
switch -exact -- $soname {
none { return 0 }
auto - 3 { set soname libsqlite3.so.3 }
legacy - 0 { set soname libsqlite3.so.0 }
default {
proj-fatal "Invalid value for --soname. Use one of (none, auto, legacy)."
}
}
msg-debug "soname=$soname"
if {[proj-check-soname $soname]} {
define LDFLAGS_SONAME_LIBSQLITE3 [get-define LDFLAGS_SONAME_PREFIX]$soname
msg-result "Setting SONAME: [get-define LDFLAGS_SONAME_LIBSQLITE3]"
} else {
proj-fatal "This environment does not support SONAME."
}
return sqlite-check-soname ""
}
sqlite-check-soname
proj-if-opt-truthy dev {
# --enable-dev needs to come early so that the downstream tests
# which check for these flags will show the user their updated
# state.
proj-opt-set all 1
proj-opt-set with-debug 1
proj-opt-set amalgamation 0
define CFLAGS [get-env CFLAGS {-O0 -g}]
}
proj-define-for-opt shared ENABLE_SHARED "Build shared library?"
if {![proj-define-for-opt static ENABLE_STATIC \
"Build static library?"]} {
proj-warn "Static lib build may be implicitly re-activated by other components, e.g. some test apps."
}
proj-define-for-opt amalgamation USE_AMALGAMATION "Use amalgamation for builds?"
proj-define-for-opt gcov USE_GCOV "Use gcov?"
proj-define-for-opt test-status TSTRNNR_OPTS \
"test-runner flags:" {--status} {}
proj-define-for-opt linemacros AMALGAMATION_LINE_MACROS \
"Use #line macros in the amalgamation:"
msg-checking "SQLITE_DEBUG build? "
proj-if-opt-truthy with-debug {
define SQLITE_DEBUG 1
define TARGET_DEBUG {-g -DSQLITE_DEBUG=1 -DSQLITE_ENABLE_SELECTTRACE -DSQLITE_ENABLE_WHERETRACE -O0 -Wall}
msg-result yes
} {
define TARGET_DEBUG {-DNDEBUG}
msg-result no
}
########################################################################
# TCL...
#
# sqlite-check-tcl performs most of the --with-tcl and --with-tclsh
# handling. Some related bits and pieces are performed before and
# after that function is called.
#
# Important [define]'d vars:
#
# - HAVE_TCL indicates whether we have a tclsh suitable for building
# the TCL SQLite extension and, by extension, the testing
# infrastructure. This must only be 1 for environments where
# tclConfig.sh can be found.
#
# - TCLSH_CMD is the path to the canonical tclsh or "". It never
# refers to jimtcl.
#
# - TCL_CONFIG_SH is the path to tclConfig.sh or "".
#
# - TCLLIBDIR is the dir to which libtclsqlite3 gets installed.
#
# - BTCLSH = the path to the tcl interpreter used for in-tree code
# generation. It may be jimtcl or the canonical tclsh but may not
# be empty - this tree requires TCL to generated numerous
# components.
#
# If --tcl or --with-tcl are provided but no TCL is found, this
# function fails fatally. If they are not explicitly provided then
# failure to find TCL is not fatal but a loud warning will be emitted.
#
proc sqlite-check-tcl {} {
define TCLSH_CMD false ; # Significant is that it exits with non-0
define HAVE_TCL 0 ; # Will be enabled via --tcl or a successful search
define TCLLIBDIR "" ; # Installation dir for TCL extension lib
define TCL_CONFIG_SH ""; # full path to tclConfig.sh
file delete -force ".tclenv.sh"; # ensure no stale state from previous configures.
if {![opt-bool tcl]} {
proj-indented-notice {
NOTE: TCL is disabled via --disable-tcl. This means that none
of the TCL-based components, including tests and sqlite3_analyzer,
will be built.
}
return
}
# TODO: document the steps this is taking.
global srcdir
msg-result "Checking for a suitable tcl... "
proj-assert [proj-opt-truthy tcl]
set use_tcl 1
set with_tclsh [opt-val with-tclsh]
set with_tcl [opt-val with-tcl]
if {"prefix" eq $with_tcl} {
set with_tcl [get-define prefix]
}
msg-debug "sqlite-check-tcl: use_tcl ${use_tcl}"
msg-debug "sqlite-check-tcl: with_tclsh=${with_tclsh}"
msg-debug "sqlite-check-tcl: with_tcl=$with_tcl"
if {"" eq $with_tclsh && "" eq $with_tcl} {
# If neither --with-tclsh nor --with-tcl are provided, try to find
# a workable tclsh.
set with_tclsh [proj-first-bin-of tclsh9.0 tclsh8.6 tclsh]
msg-debug "sqlite-check-tcl: with_tclsh=${with_tclsh}"
}
set doConfigLookup 1 ; # set to 0 to test the tclConfig.sh-not-found cases
if {"" ne $with_tclsh} {
# --with-tclsh was provided or found above. Validate it and use it
# to trump any value passed via --with-tcl=DIR.
if {![file isfile $with_tclsh]} {
proj-fatal "TCL shell $with_tclsh is not a file"
} elseif {![file-isexec $with_tclsh]} {
proj-fatal "TCL shell $with_tclsh is not executable"
} else {
define TCLSH_CMD $with_tclsh
#msg-result "Using tclsh: $with_tclsh"
}
if {$doConfigLookup &&
[catch {exec $with_tclsh $srcdir/tool/find_tclconfig.tcl} result] == 0} {
set with_tcl $result
}
if {"" ne $with_tcl && [file isdir $with_tcl]} {
msg-result "$with_tclsh recommends the tclConfig.sh from $with_tcl"
} else {
proj-warn "$with_tclsh is unable to recommend a tclConfig.sh"
set use_tcl 0
}
}
set cfg ""
set tclSubdirs {tcl9.0 tcl8.6 lib}
while {$use_tcl} {
if {"" ne $with_tcl} {
# Ensure that we can find tclConfig.sh under ${with_tcl}/...
if {$doConfigLookup} {
if {[file readable "${with_tcl}/tclConfig.sh"]} {
set cfg "${with_tcl}/tclConfig.sh"
} else {
foreach i $tclSubdirs {
if {[file readable "${with_tcl}/$i/tclConfig.sh"]} {
set cfg "${with_tcl}/$i/tclConfig.sh"
break
}
}
}
}
if {"" eq $cfg} {
proj-fatal "No tclConfig.sh found under ${with_tcl}"
}
} else {
# If we have not yet found a tclConfig.sh file, look in
# $libdir which is set automatically by autosetup or by the
# --prefix command-line option. See
# https://sqlite.org/forum/forumpost/e04e693439a22457
set libdir [get-define libdir]
if {[file readable "${libdir}/tclConfig.sh"]} {
set cfg "${libdir}/tclConfig.sh"
} else {
foreach i $tclSubdirs {
if {[file readable "${libdir}/$i/tclConfig.sh"]} {
set cfg "${libdir}/$i/tclConfig.sh"
break
}
}
}
if {![file readable $cfg]} {
break
}
}
msg-result "Using tclConfig.sh: $cfg"
break
}
define TCL_CONFIG_SH $cfg
# Export a subset of tclConfig.sh to the current TCL-space. If $cfg
# is an empty string, this emits empty-string entries for the
# various options we're interested in.
eval [exec "${srcdir}/tool/tclConfigShToTcl.sh" "$cfg"]
if {"" eq $with_tclsh && $cfg ne ""} {
# We have tclConfig.sh but no tclsh. Attempt to locate a tclsh
# based on info from tclConfig.sh.
proj-assert {"" ne [get-define TCL_EXEC_PREFIX]}
set with_tclsh [get-define TCL_EXEC_PREFIX]/bin/tclsh[get-define TCL_VERSION]
if {![file-isexec $with_tclsh]} {
set with_tclsh2 [get-define TCL_EXEC_PREFIX]/bin/tclsh
if {![file-isexec $with_tclsh2]} {
proj-warn "Cannot find a usable tclsh (tried: $with_tclsh $with_tclsh2)"
} else {
set with_tclsh $with_tclsh2
}
}
}
define TCLSH_CMD $with_tclsh
if {$use_tcl} {
# Set up the TCLLIBDIR
#
# 2024-10-28: calculation of TCLLIBDIR is now done via the shell
# in main.mk (search it for T.tcl.env.sh) so that
# static/hand-written makefiles which import main.mk do not have
# to define that before importing main.mk. Even so, we export
# TCLLIBDIR from here, which will cause the makefile to use this
# one rather than to re-calculate it at make-time.
set tcllibdir [get-env TCLLIBDIR ""]
if {"" eq $tcllibdir} {
# Attempt to extract TCLLIBDIR from TCL's $auto_path
if {"" ne $with_tclsh &&
[catch {exec echo "puts stdout \$auto_path" | "$with_tclsh"} result] == 0} {
foreach i $result {
if {[file isdir $i]} {
set tcllibdir $i/sqlite3
break
}
}
} else {
proj-warn "Cannot determine TCLLIBDIR."
# The makefile will fail fatally in this case if a target is
# invoked which requires TCLLIBDIR.
}
}
#if {"" ne $tcllibdir} { msg-result "TCLLIBDIR = ${tcllibdir}"; }
define TCLLIBDIR $tcllibdir
}; # find TCLLIBDIR
if {[file-isexec $with_tclsh]} {
msg-result "Using tclsh: $with_tclsh"
if {$cfg ne ""} {
define HAVE_TCL 1
} else {
proj-warn "Found tclsh but no tclConfig.sh."
}
}
show-notices
# If TCL is not found: if it was explicitly requested then fail
# fatally, else just emit a warning. If we can find the APIs needed
# to generate a working JimTCL then that will suffice for build-time
# TCL purposes (see: proc sqlite-determine-codegen-tcl).
if {![get-define HAVE_TCL] &&
([proj-opt-was-provided tcl] || [proj-opt-was-provided with-tcl])} {
proj-fatal "TCL support was requested but no tclConfig.sh could be found."
}
if {"" eq $cfg} {
proj-assert {0 == [get-define HAVE_TCL]}
proj-indented-notice {
WARNING: Cannot find a usable tclConfig.sh file. Use
--with-tcl=DIR to specify a directory where tclConfig.sh can be
found. SQLite does not use TCL internally, but some optional
components require TCL, including tests and sqlite3_analyzer.
}
}
}; # sqlite-check-tcl
sqlite-check-tcl
########################################################################
# sqlite-determine-codegen-tcl checks which TCL to use as a code
# generator. By default, prefer jimsh simply because we have it
# in-tree (it's part of autosetup) unless --with-tclsh=X is used, in
# which case prefix X.
#
# Returns the human-readable name of the TCL it selects. Fails fatally
# if it cannot detect a TCL appropriate for code generation.
#
# Defines:
#
# - BTCLSH = the TCL shell used for code generation. It may set this
# to an unexpanded makefile var name.
#
# - CFLAGS_JIMSH = any flags needed for buildng a BTCLSH-compatible
# jimsh. The defaults may be passed on to configure as
# CFLAGS_JIMSH=...
set useJimForCodeGen 0 ; # Set to 1 when using jimsh for code generation.
# May affect later decisions.
proc sqlite-determine-codegen-tcl {} {
msg-result "Checking for TCL to use for code generation... "
define CFLAGS_JIMSH [proj-get-env CFLAGS_JIMSH {-O1}]
set cgtcl [opt-val with-tclsh jimsh]
set flagsToRestore {CC CFLAGS AS_CFLAGS CPPFLAGS AS_CPPFLAGS LDFLAGS LINKFLAGS LIBS CROSS}
define-push $flagsToRestore {
# We have to swap CC to CC_FOR_BUILD for purposes of the various
# [cc-...] tests below. Recall that --with-wasi-sdk may have
# swapped out CC with one which is not appropriate for this block.
# Per consulation with autosetup's creator, doing this properly
# requires us to [define-push] the whole $flagsToRestore list
# (plus a few others which are not relevant in this tree).
#
# These will get set to their previous values at the end of this
# block.
foreach flag $flagsToRestore {define $flag ""}
define CC [get-define CC_FOR_BUILD]
if {"jimsh" ne $cgtcl} {
# When --with-tclsh=X is used, use that for all TCL purposes,
# including in-tree code generation, per developer request.
define BTCLSH "\$(TCLSH_CMD)"
} else {
# These headers are technically optional for JimTCL but necessary if
# we want to use it for code generation:
set sysh [cc-check-includes dirent.h sys/time.h]
# jimsh0.c hard-codes #define's for HAVE_DIRENT_H and
# HAVE_SYS_TIME_H on the platforms it supports, so we do not
# need to add -D... flags for those. We check for them here only
# so that we can avoid the situation that we later, at
# make-time, try to compile jimsh but it then fails due to
# missing headers (i.e. fail earlier rather than later).
if {$sysh && [cc-check-functions realpath]} {
define-append CFLAGS_JIMSH -DHAVE_REALPATH
define BTCLSH "\$(JIMSH)"
set ::useJimForCodeGen 1
} elseif {$sysh && [cc-check-functions _fullpath]} {
# _fullpath() is a Windows API. It's not entirely clear
# whether we need to add {-DHAVE_SYS_TIME_H -DHAVE_DIRENT_H}
# to CFLAGS_JIMSH in this case. On MinGW32 we definitely do
# not want to because it already hard-codes them. On _MSC_VER
# builds it does not.
define-append CFLAGS_JIMSH -DHAVE__FULLPATH
define BTCLSH "\$(JIMSH)"
set ::useJimForCodeGen 1
} elseif {[file-isexec [get-define TCLSH_CMD]]} {
set cgtcl [get-define TCLSH_CMD]
define BTCLSH "\$(TCLSH_CMD)"
} else {
# One last-ditch effort to find TCLSH_CMD: use info from
# tclConfig.sh to try to find a tclsh
if {"" eq [get-define TCLSH_CMD]} {
set tpre [get-define TCL_EXEC_PREFIX]
if {"" ne $tpre} {
set tv [get-define TCL_VERSION]
if {[file-isexec "${tpre}/bin/tclsh${tv}"]} {
define TCLSH_CMD "${tpre}/bin/tclsh${tv}"
} elseif {[file-isexec "${tpre}/bin/tclsh"]} {
define TCLSH_CMD "${tpre}/bin/tclsh"
}
}
}
set cgtcl [get-define TCLSH_CMD]
if {![file-isexec $cgtcl]} {
proj-fatal "Cannot find a tclsh to use for code generation."
}
define BTCLSH "\$(TCLSH_CMD)"
}
}
}; # CC swap-out
return $cgtcl
}; # sqlite-determine-codegen-tcl
msg-result "TCL for code generation: [sqlite-determine-codegen-tcl]"
# /TCL
########################################################################
########################################################################
# Thread safety?
msg-checking "Support threadsafe operation? "
proj-if-opt-truthy threadsafe {
msg-result yes
sqlite-add-feature-flag -DSQLITE_THREADSAFE=1
if {![proj-check-function-in-lib pthread_create pthread]
|| ![proj-check-function-in-lib pthread_mutexattr_init pthread]} {
user-error "Missing required pthread bits"
}
define LDFLAGS_PTHREAD [get-define lib_pthread_create]
undefine lib_pthread_create
} {
msg-result no
sqlite-add-feature-flag -DSQLITE_THREADSAFE=0
define LDFLAGS_PTHREAD ""
}
########################################################################
# Do we want temporary databases in memory?
#
apply {{} {
set ts [opt-val with-tempstore no]
set tsn 1
msg-checking "Use an in-RAM database for temporary tables? "
switch -- $ts {
never { set tsn 0 }
no { set tsn 1 }
yes { set tsn 2 }
always { set tsn 3 }
default {
user-error "Invalid --with-tempstore value '$ts'. Use one of: never, no, yes, always"
}
}
msg-result $ts
define TEMP_STORE $tsn
}}
########################################################################
# sqlite-check-line-editing jumps through proverbial hoops to try to
# find a working line-editing library, setting:
#
# - HAVE_READLINE to 0 or 1
# - HAVE_LINENOISE to 0, 1, or 2
# - HAVE_EDITLINE to 0 or 1
#
# Only one of ^^^ those will be set to non-0.
#
# - LDFLAGS_READLINE = linker flags or empty string
#
# - CFLAGS_READLINE = compilation flags for clients or empty string.
#
# Note that LDFLAGS_READLINE and CFLAGS_READLINE may refer to
# linenoise or editline, not necessarily libreadline. In some cases
# it will set HAVE_READLINE=1 when it's really using editline, for
# reasons described in this function's comments.
#
# Returns a string describing which line-editing approach to use, or
# "none" if no option is available.
#
# Order of checks:
#
# 1) --with-linenoise trumps all others and skips all of the
# complexities involved with the remaining options.
#
# 2) --editline trumps --readline
#
# 3) --disable-readline trumps --readline
#
# 4) Default to automatic search for optional readline
#
# 5) Try to find readline or editline. If it's not found AND the
# corresponding --FEATURE flag was explicitly given, fail fatally,
# else fail silently.
proc sqlite-check-line-editing {} {
msg-result "Checking for line-editing capability..."
define HAVE_READLINE 0
define HAVE_LINENOISE 0
define HAVE_EDITLINE 0
define LDFLAGS_READLINE ""
define CFLAGS_READLINE ""
set failIfNotFound 0 ; # Gets set to 1 for explicit --FEATURE requests
# so that we know whether to fail fatally or not
# if the library is not found.
set libsForReadline {readline edit} ; # -l<LIB> names to check for readline().
# The libedit check changes this.
set editLibName "readline" ; # "readline" or "editline"
set editLibDef "HAVE_READLINE" ; # "HAVE_READLINE" or "HAVE_EDITLINE"
set dirLn [opt-val with-linenoise]
if {"" ne $dirLn} {
# Use linenoise from a copy of its sources (not a library)...
if {![file isdir $dirLn]} {
proj-fatal "--with-linenoise value is not a directory"
}
set lnH $dirLn/linenoise.h
if {![file exists $lnH] } {
proj-fatal "Cannot find linenoise.h in $dirLn"
}
set lnC ""
set lnCOpts {linenoise-ship.c linenoise.c}
foreach f $lnCOpts {
if {[file exists $dirLn/$f]} {
set lnC $dirLn/$f
break;
}
}
if {"" eq $lnC} {
proj-fatal "Cannot find any of $lnCOpts in $dirLn"
}
set flavor ""
set lnVal [proj-which-linenoise $lnH]
switch -- $lnVal {
1 { set flavor "antirez" }
2 { set flavor "msteveb" }
default {
proj-fatal "Cannot determine the flavor of linenoise from $lnH"
}
}
define CFLAGS_READLINE "-I$dirLn $lnC"
define HAVE_LINENOISE $lnVal
sqlite-add-shell-opt -DHAVE_LINENOISE=$lnVal
if {$::useJimForCodeGen && 2 == $lnVal} {
define-append CFLAGS_JIMSH -DUSE_LINENOISE [get-define CFLAGS_READLINE]
user-notice "Adding linenoise support to jimsh."
}
return "linenoise ($flavor)"
} elseif {[opt-bool editline]} {
# libedit mimics libreadline and on some systems does not have its
# own header installed (instead, that of libreadline is used).
#
# shell.c historically expects HAVE_EDITLINE to be set for
# libedit, but it then expects to see <editline/readline.h>, which
# some system's don't actually have despite having libedit. If we
# end up finding <editline/readline.h> below, we will use
# -DHAVE_EDITLINE=1, else we will use -DHAVE_READLINE=1. In either
# case, we will link against libedit.
set failIfNotFound 1
set libsForReadline {edit}
set editLibName editline
} elseif {![opt-bool readline]} {
msg-result "Readline support explicitly disabled with --disable-readline"
return "none"
} elseif {[proj-opt-was-provided readline]} {
# If an explicit --[enable-]readline was used, fail if it's not
# found, else treat the feature as optional.
set failIfNotFound 1
}
# Transform with-readline-header=X to with-readline-cflags=-I...
set v [opt-val with-readline-header]
proj-opt-set with-readline-header ""
if {"" ne $v} {
if {"auto" eq $v} {
proj-opt-set with-readline-cflags auto
} else {
set v [file dirname $v]
if {[string match */readline $v]} {
# Special case: if the path includes .../readline/readline.h,
# set the -I to one dir up from that because our sources
# #include <readline/readline.h> or <editline/readline.h>.
set v [file dirname $v]
}
proj-opt-set with-readline-cflags "-I$v"
}
}
# Look for readline.h
set rlInc [opt-val with-readline-cflags auto]
if {"auto" eq $rlInc} {
set rlInc ""
if {$::isCrossCompiling} {
# ^^^ this check is derived from the legacy configure script.
proj-warn "Skipping check for readline.h because we're cross-compiling."
} else {
set dirs "[get-define prefix] /usr /usr/local /usr/local/readline /usr/contrib /mingw"
set subdirs "include/$editLibName"
if {"editline" eq $editLibName} {
lappend subdirs include/readline
# ^^^ editline, on some systems, does not have its own header,
# and uses libreadline's header.
}
lappend subdirs include
# ^^^ The dirs and subdirs lists are, except for the inclusion