-
Notifications
You must be signed in to change notification settings - Fork 108
/
Copy pathMakefile.defs
1096 lines (969 loc) · 33.7 KB
/
Makefile.defs
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
ifneq (4.1,$(firstword $(sort $(MAKE_VERSION) 4.1)))
$(error your version of make is too old: $(MAKE_VERSION), need at least 4.1)
endif
# Prevent make from removing targets it considers as intermediate.
.SECONDARY:
# Note: ensure our possibly updated `PATH` variable is picked up by
# `$(shell …)` invocations when using older (<4.4) make versions.
ifeq (,$(filter shell-export,$(.FEATURES)))
SHELL = env PATH='$(PATH)' bash -eo pipefail
else
SHELL = bash -eo pipefail
endif
ifeq (,$(V)$(VERBOSE))
.SILENT:
endif
ifeq (,$(PARALLEL_JOBS))
empty :=
space := $(empty) $(empty)
PARALLEL_JOBS := $(or $(patsubst -j%,%,$(filter -j%,$(MFLAGS))))
endif
ifeq (,$(PARALLEL_LOAD))
PARALLEL_LOAD := $(or $(patsubst -l%,%,$(filter -l%,$(MFLAGS))))
endif
ifeq (,$(and $(PARALLEL_JOBS),$(PARALLEL_LOAD)))
CORES := $(shell getconf _NPROCESSORS_ONLN)
ALLOCATED_CORES := $(CORES)
# Detect when running under cgroups, so we don't try
# to run with `make/ninja -j36 …` on some CI workers.
ifneq (,$(wildcard /sys/fs/cgroup/cpu/cpu.shares))
ALLOCATED_CORES := $(shell echo $$(($$(cat /sys/fs/cgroup/cpu/cpu.shares) / 1024)))
endif
ifeq (,$(PARALLEL_JOBS))
PARALLEL_JOBS := $(if $(CI),$(shell echo $$(($(ALLOCATED_CORES) + ($(ALLOCATED_CORES) + 1) / 2))),$(ALLOCATED_CORES))
endif
ifeq (,$(PARALLEL_LOAD))
PARALLEL_LOAD := $(CORES)
endif
endif
export PARALLEL_JOBS
export PARALLEL_LOAD
KEEP_GOING := $(findstring k,$(firstword -$(MAKEFLAGS)))
DRY_RUN := $(findstring n,$(firstword -$(MAKEFLAGS)))
# Use ccache in build system by default. Define USE_NO_CCACHE=1 to force disable it.
ifeq ($(USE_NO_CCACHE), 1)
CCACHE :=
else
CCACHE := $(or $(CCACHE),$(shell command -v ccache))
endif
TOOLCHAIN_DIR = $(abspath $(KOR_BASE)/toolchain)
ANDROID_ARCH ?= arm
export ANDROID_HOME := $(or $(ANDROID_HOME),$(ANDROID_SDK_ROOT),$(TOOLCHAIN_DIR)/android-sdk-linux)
export ANDROID_SDK_ROOT := $(ANDROID_HOME)
export ANDROID_NDK_HOME := $(or $(ANDROID_NDK_HOME),$(ANDROID_NDK_ROOT),$(TOOLCHAIN_DIR)/android-ndk-r23c)
export ANDROID_NDK_ROOT := $(ANDROID_NDK_HOME)
ANDROID_TOOLCHAIN = $(ANDROID_NDK_HOME)/toolchains/llvm/prebuilt/linux-x86_64
ifeq ($(ANDROID_ARCH), arm64)
# 64bit arches require at least ABI 21.
export NDKABI?=21
else ifeq ($(ANDROID_ARCH), x86_64)
# Ditto.
export NDKABI?=21
else
# Android 4.3 (Jelly Bean MR2); our minimal supported version.
export NDKABI?=18
endif
LINUX_ARCH?=native
# set debug-related variables to cascade down
ifdef KODEBUG
DEBUG:=$(KODEBUG)
export DEBUG
endif
CMAKE := cmake -Wdev --warn-uninitialized
NINJA := $(or $(NINJA),ninja)
ifneq (,$(or $(VERBOSE),$(V)))
ifeq (4.4,$(firstword $(sort $(MAKE_VERSION) 4.4)))
MAKEFLAGS += --debug=print
else
MAKEFLAGS += --trace
endif
NINJAFLAGS += -v
export KOVERBOSE=1
endif
ifneq (,$(PARALLEL_JOBS))
NINJAFLAGS += -j$(PARALLEL_JOBS)
endif
ifneq (,$(PARALLEL_LOAD))
NINJAFLAGS += -l$(PARALLEL_LOAD)
endif
ifneq (,$(KEEP_GOING))
MAKEFLAGS += -k
NINJAFLAGS += -k0
endif
ifneq (,$(DRY_RUN))
MAKEFLAGS += -n
NINJAFLAGS += -nv
endif
ifneq ($(or $(CLICOLOR_FORCE),$(MAKE_TERMOUT)),)
export CLICOLOR_FORCE=1
NINJA_STATUS := $(shell printf '\33[32;1m▸%%p\33[0m | ')
else
NINJA_STATUS := $(empty) %p | $(empty)
endif
export NINJA_STATUS
export NINJAFLAGS
CMAKE_FLAGS = -G Ninja
# set this to your ARM cross compiler:
# set CC CXX AR LD RANLIB
ifeq ($(TARGET), arm-generic)
CHOST?=arm-linux-gnueabi
else ifeq ($(TARGET), kindle)
KINDLE=1
HAS_KINDLE5_TC:=$(shell command -v arm-kindle5-linux-gnueabi-gcc 2> /dev/null)
ifdef HAS_KINDLE5_TC
#Use the custom build TC
CHOST?=arm-kindle5-linux-gnueabi
else
#Use the generic linaro TC for debugging
CHOST?=arm-linux-gnueabi
endif
GLIBC_VERSION_MAX = 2.12
else ifeq ($(TARGET), kindlepw2)
KINDLE=1
HAS_KINDLEPW2_TC:=$(shell command -v arm-kindlepw2-linux-gnueabi-gcc 2> /dev/null)
ifdef HAS_KINDLEPW2_TC
CHOST?=arm-kindlepw2-linux-gnueabi
else
CHOST?=arm-linux-gnueabi
endif
GLIBC_VERSION_MAX = 2.12
else ifeq ($(TARGET), kindlehf)
KINDLE=1
HAS_KINDLEHF_TC:=$(shell command -v arm-kindlehf-linux-gnueabihf-gcc 2> /dev/null)
ifdef HAS_KINDLEHF_TC
CHOST?=arm-kindlehf-linux-gnueabihf
else
CHOST?=arm-linux-gnueabihf
endif
GLIBC_VERSION_MAX = 2.20
else ifeq ($(TARGET), kindle-legacy)
KINDLE=1
CHOST?=arm-kindle-linux-gnueabi
LEGACY=1
GLIBC_VERSION_MAX = 2.5
else ifeq ($(TARGET), kobo)
KOBO=1
HAS_KOBO_TC:=$(shell command -v arm-kobo-linux-gnueabihf-gcc 2> /dev/null)
ifdef HAS_KOBO_TC
CHOST?=arm-kobo-linux-gnueabihf
else
CHOST?=arm-linux-gnueabihf
endif
USE_LJ_WPACLIENT=1
GLIBC_VERSION_MAX = 2.15
else ifeq ($(TARGET), kobov4)
KOBO=1
HAS_KOBOV4_TC:=$(shell command -v arm-kobov4-linux-gnueabihf-gcc 2> /dev/null)
ifdef HAS_KOBOV4_TC
CHOST?=arm-kobov4-linux-gnueabihf
else
CHOST?=arm-linux-gnueabihf
endif
USE_LJ_WPACLIENT=1
GLIBC_VERSION_MAX = 2.19
else ifeq ($(TARGET), kobov5)
KOBO=1
HAS_KOBOV5_TC:=$(shell command -v arm-kobov5-linux-gnueabihf-gcc 2> /dev/null)
ifdef HAS_KOBOV5_TC
CHOST?=arm-kobov5-linux-gnueabihf
else
CHOST?=arm-linux-gnueabihf
endif
USE_LJ_WPACLIENT=1
GLIBC_VERSION_MAX = 2.35
else ifeq ($(TARGET), ubuntu-touch)
CHOST?=arm-linux-gnueabihf
SDL=1
UBUNTUTOUCH=1
else ifeq ($(TARGET), appimage)
EMULATE_READER=1
SDL=1
APPIMAGE=1
else ifeq ($(TARGET), linux)
SDL=1
ifeq ($(LINUX_ARCH), arm)
CHOST?=arm-linux-gnueabihf
else ifeq ($(LINUX_ARCH), arm64)
CHOST?=aarch64-linux-gnu
else
EMULATE_READER=1
endif
else ifeq ($(TARGET), macos)
SDL=1
MACOS=1
EMULATE_READER=1
else ifeq ($(TARGET), android)
ANDROID=1
export PATH:=$(ANDROID_TOOLCHAIN)/bin:$(PATH)
ifeq ($(ANDROID_ARCH), x86)
CHOST?=i686-linux-android$(NDKABI)
else ifeq ($(ANDROID_ARCH), x86_64)
CHOST?=x86_64-linux-android$(NDKABI)
else ifeq ($(ANDROID_ARCH), arm64)
CHOST?=aarch64-linux-android$(NDKABI)
else
CHOST?=armv7a-linux-androideabi$(NDKABI)
endif
USE_CLANG=1
else ifeq ($(TARGET), win32)
CHOST?=x86_64-w64-mingw32
WIN32=1
SDL=1
else ifeq ($(TARGET), pocketbook)
CHOST?=arm-pocketbook-linux-gnueabi
POCKETBOOK=1
HAS_POCKETBOOK_TC:=$(shell command -v arm-pocketbook-linux-gnueabi-gcc 2> /dev/null)
ifdef HAS_POCKETBOOK_TC
CHOST?=arm-pocketbook-linux-gnueabi
else
CHOST?=arm-linux-gnueabi
endif
GLIBC_VERSION_MAX = 2.5
else ifeq ($(TARGET), remarkable)
CHOST?=arm-remarkable-linux-gnueabihf
REMARKABLE=1
USE_LJ_WPACLIENT=1
else ifeq ($(TARGET), sony-prstux)
CHOST?=arm-linux-gnueabihf
SONY_PRSTUX=1
USE_LJ_WPACLIENT=1
else ifeq ($(TARGET), cervantes)
CERVANTES=1
HAS_CERVANTES_TC:=$(shell command -v arm-cervantes-linux-gnueabi-gcc 2> /dev/null)
ifdef HAS_CERVANTES_TC
CHOST?=arm-cervantes-linux-gnueabi
else
CHOST?=arm-linux-gnueabi
endif
USE_LJ_WPACLIENT=1
else ifndef TARGET
# if TARGET is not defined we will build an emulator on current machine
EMULATE_READER=1
SDL=1
else
$(error Invalid TARGET: "$(TARGET)")
endif
ifneq (,$(findstring darwin,$(MAKE_HOST)))
DARWINHOST=1
ifneq (,$(findstring aarch64,$(MAKE_HOST)))
DARWIN_AARCH64_HOST=1
endif
ifdef EMULATE_READER
DARWIN=1
ifdef DARWIN_AARCH64_HOST
DARWIN_AARCH64=1
endif
endif
endif
# ccache still has tons of problems when cross-compiling Android port on Darwin
ifdef DARWINHOST
ifdef ANDROID
CCACHE=
endif
endif
ifneq ($(CCACHE),)
export CCACHE
# Rewrite relative paths in the compiler’s
# standard error output to absolute paths.
export CCACHE_ABSSTDERR = 1
endif
# NOTE: This is necessary (at least on Android), because some early API levels will not put DT_NEEDED libraries in the global namespace.
# Ensuring Lua/C modules have their own DT_NEEDED entry to the shared LuaJIT library works around this quirk (and is otherwise mostly harmless).
# Saner APIs behave like Linux, and wouldn't require this hack.
USE_LUAJIT_LIB = $(or $(DARWIN),$(ANDROID),$(WIN32))
SKIP_LUAJIT_BIN = $(ANDROID)
RCP := cp -R
WGET ?= wget --no-verbose
define wget_and_validate
$(WGET) -O '$1' '$2' \
&& echo '$3 $1' | sha1sum -c - \
|| { code=$$?; rm -f '$1'; exit $$code; }
endef
# ln --symbolic --no-dereference --force --relative
SYMLINK = $(if $(DARWINHOST),gln,ln) -snfr
# set cross-compiler/host CC and CXX
ifneq (,$(USE_CLANG))
ifdef CHOST
CC:=$(CHOST)-clang
CXX:=$(CHOST)-clang++
else
CC:=clang
CXX:=clang++
endif
HOSTCC:=clang
HOSTCXX:=clang++
# quiet flag
QFLAGS:=-Wno-ignored-optimization-argument -Wno-unknown-warning-option
# Tone down some very verbose Clang 5 warnings, too.
# This one can be *extremely* verbose
QFLAGS+=-Wno-array-bounds
# This one checks if -I flags are actually used, even at steps where it makes little sense.
# Since we massively pass -I/-L flags ourselves, this becomes insane really quick.
QFLAGS+=-Wno-unused-command-line-argument
# Let FreeType do its thing...
QFLAGS+=-Wno-self-assign
# Also extremely verbose...
QFLAGS+=-Wno-parentheses-equality
# For dropbear's libtom...
QFLAGS+=-Wno-macro-redefined
else
ifdef CHOST
CC:=$(CHOST)-gcc
CXX:=$(CHOST)-g++
else
CC:=gcc
CXX:=g++
endif
HOSTCC:=gcc
HOSTCXX:=g++
QFLAGS:=
endif
# set cross-compiler/host AR LD RANLIB
ifeq ($(TARGET), android)
STRIP:=llvm-strip
AR:=llvm-ar
LD:=ld
NM:=llvm-nm
OBJCOPY:=llvm-objcopy
RANLIB:=llvm-ranlib
READELF:=llvm-readelf
else ifdef CHOST
STRIP:=$(CHOST)-strip
AR:=$(CHOST)-ar
LD:=$(CHOST)-ld
NM:=$(CHOST)-nm
OBJCOPY:=$(CHOST)-objcopy
RC:=$(CHOST)-windres
RANLIB:=$(CHOST)-ranlib
READELF:=$(CHOST)-readelf
else
STRIP:=strip
AR:=ar
LD:=ld
NM:=nm
OBJCOPY:=objcopy
RC:=windres
RANLIB:=ranlib
READELF:=readelf
endif
HOSTSTRIP:=strip
HOSTAR:=ar
HOSTLD:=ld
HOSTOBJCOPY:=objcopy
HOSTRANLIB:=ranlib
HOSTREADELF:=readelf
# Path to the shared STL, because we need to ship it on most platforms.
# We don't want to rely on -static-libstdc++, as it risks breaking the ODR.
# (Also, it was a pain to deal with because of libtool,
# c.f., https://www.gnu.org/software/libtool/manual/html_node/Stripped-link-flags.html#Stripped-link-flags).
ifndef DARWIN
# TODO: Detect/support libc++ Clang TCs?
ifdef ANDROID
SHARED_STL_LIB:=$(shell $(CC) -print-file-name=libc++_shared.so)
else
SHARED_STL_LIB:=$(shell $(CC) -print-file-name=libstdc++.so.6)
endif
endif
# Base CFLAGS, without arch. We'll need it for luajit, because its
# Makefiles do some tricky stuff to differentiate HOST/TARGET
BASE_CFLAGS:=-O2 -g -pipe -fomit-frame-pointer
# For ricers.
#BASE_CFLAGS:=-O3 -pipe -fomit-frame-pointer -frename-registers -fweb
# Used to enforce aggressive optimizations in some components
VECTO_CFLAGS:=-O3 -pipe -fomit-frame-pointer -frename-registers -fweb -ftree-vectorize -funroll-loops
# And for an aggressive LTO build
#BASE_CFLAGS:=$(VECTO_CFLAGS) -flto$(if $(PARALLEL_JOBS),=$(PARALLEL_JOBS)) -fuse-linker-plugin
# Use this for debugging:
ifdef KODEBUG
BASE_CFLAGS:=-Og -g -pipe -fno-omit-frame-pointer
# Don't enforce extra CFLAGS in debug builds
VECTO_CFLAGS:=
else
BASE_CFLAGS += -DNDEBUG
endif
# Misc GCC tricks to ensure backward compatibility with the K2,
# even when using a fairly recent TC (Linaro/MG).
# NOTE: -mno-unaligned-access is needed for TC based on Linaro 4.6/4.7
# or GCC 4.7, or weird crap happens on FW 2.x. We unfortunately can't
# set it by default, since it's a new flag.
# A possible workaround would be to set the alignment trap to
# fixup (echo 2 > /proc/cpu/alignment) in the launch script,
# but that's terribly ugly, and might severly nerf performance...
# That said, MG 2012.03 is still using GCC 4.6.3, so we're good ;).
#
# For ref:
## no-ssp & killing FORTIFY_SOURCE are for the *_chk private GLIBC symbols [@GLIBC_2.11 & @GLIBC_2.15]
## no-finite-maths-only is for the *_finite LM symbols (byproduct of using ffast-maths) [@GLIBC_2.15]
## GNU_SOURCE is a very heavy-handed way of getting rid of the __isoc99_sscanf stuff [@GLIBC_2.7]
## no-use-cxa-atexit is to get rid of cxa_atexit
#
MG2K12_COMPAT_CFLAGS:=-fno-stack-protector -U_FORTIFY_SOURCE -D_GNU_SOURCE -fno-finite-math-only
MG2K12_COMPAT_CXXFLAGS:=-fno-use-cxa-atexit
# My legacy TC is based on glibc 2.9, that should be enough :).
NILUJE_COMPAT_CFLAGS:=-fno-stack-protector -U_FORTIFY_SOURCE -D_GNU_SOURCE -mno-unaligned-access
# As for PB, despite the old TC targeting glibc 2.9, some devices are apparently still running glibc 2.5... (#5939)
PB_COMPAT_CFLAGS:=-D_GNU_SOURCE
# Same deal, but when targeting the K5/Kobo & using Ubuntu's Linaro TCs
UBUNTU_COMPAT_CFLAGS:=-fno-finite-math-only -fno-stack-protector -U_FORTIFY_SOURCE
# When we can't avoid pulling in the system's libstdc++ on a platform using GCC < 5.1
# The potential for actual runtime issues is fairly low, though,
# c.f., https://gcc.gnu.org/onlinedocs/libstdc++/manual/using_dual_abi.html
STLABI_COMPAT_CFLAGS:=-D_GLIBCXX_USE_CXX11_ABI=0
# ARM 1136JF-S (Legacy Kidle devices [K2/K3/DX/DXG])
ARMV6_1136_ARCH:=-march=armv6j -mtune=arm1136jf-s -mfpu=vfp -marm
# Generic armv6
ARMV6_GENERIC_ARCH:=-march=armv6 -mtune=generic-armv6 -marm
# Generic armv7
ARMV7_GENERIC_ARCH:=-march=armv7-a -mtune=generic-armv7-a -mfpu=vfpv3 -mthumb
# Generic arm 64 bits
ARM64_GENERIC_ARCH:=-march=armv8-a
# Cortex A8 (K4, Kindle Touch, PW1, Kobos since the Touch)
ARMV7_A8_ARCH:=-march=armv7-a -mtune=cortex-a8 -mfpu=neon -mthumb
# Cortex A9 (e.g., Kindle PW2)
ARMV7_A9_ARCH:=-march=armv7-a -mtune=cortex-a9 -mfpu=neon -mthumb
# Cortex A7 (e.g., Kobo Sage & Elipsa)
ARMV7_A7_ARCH:=-march=armv7-a -mtune=cortex-a7 -mfpu=neon -mthumb
# Cortex A53 (MTK SoCs on an armv7 software stack)
ARMV7_A53_ARCH:=-march=armv7-a -mtune=cortex-a53 -mfpu=neon -mthumb
# Mirror the NDK's armeabi-v7a APP_ABI (cf. #201)
ifeq ($(ANDROID_ARCH), arm)
ANDROID_ARM_ARCH:=-march=armv7-a -mfpu=vfpv3-d16
ANDROID_ARM_ARCH+=-mthumb
# NOTE: NDK15c actually uses -fstack-protector-strong
ANDROID_ARM_ARCH+=-ffunction-sections -funwind-tables -fstack-protector -no-canonical-prefixes
else ifeq ($(ANDROID_ARCH), arm64)
ANDROID_ARM_ARCH:=-ffunction-sections -funwind-tables -fstack-protector -no-canonical-prefixes
endif
TARGET_MACHINE := $(shell $(CC) -dumpmachine)
ifeq (,$(TARGET_MACHINE))
ifneq (,$(filter-out distclean fetch%,$(or $(MAKECMDGOALS),all)))
$(error failed to retrieve target machine)
endif
endif
ifdef KODEBUG
MACHINE = $(TARGET_MACHINE)-debug
else
MACHINE = $(TARGET_MACHINE)
endif
# Use target-specific CFLAGS
ifeq ($(TARGET), kobo)
# NOTE: If we only care about Kobos w/ a Touch screen, we're good.
ARM_ARCH:=$(ARMV7_A8_ARCH)
ARM_ARCH+=-mfloat-abi=hard
ifeq ($(TARGET_MACHINE), arm-linux-gnueabihf)
COMPAT_CFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
COMPAT_CXXFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
endif
else ifeq ($(TARGET), kobov4)
ARM_ARCH:=$(ARMV7_A9_ARCH)
ARM_ARCH+=-mfloat-abi=hard
ifeq ($(TARGET_MACHINE), arm-linux-gnueabihf)
COMPAT_CFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
COMPAT_CXXFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
endif
else ifeq ($(TARGET), kobov5)
ARM_ARCH:=$(ARMV7_A53_ARCH)
ARM_ARCH+=-mfloat-abi=hard
ifeq ($(TARGET_MACHINE), arm-linux-gnueabihf)
COMPAT_CFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
COMPAT_CXXFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
endif
else ifeq ($(TARGET), ubuntu-touch)
ARM_ARCH:=$(ARMV7_A8_ARCH)
ARM_ARCH+=-mfloat-abi=hard
COMPAT_CFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
COMPAT_CXXFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
else ifeq ($(TARGET), pocketbook)
# NOTE: The TC itself is built in ARM mode (otherwise glibc 2.9 fails to build).
# We prefer Thumb mode for our own binaries, though, much like on every other i.MX device ;).
ARM_ARCH:=$(ARMV7_A8_ARCH)
ARM_ARCH+=-mfloat-abi=softfp
# NOTE: Because of course everything is terrible, newer FW (5.19+) use GCC 6.3.0's libstdc++,
# so, ideally, we shouldn't be using this on those newer devices...
COMPAT_CFLAGS:=$(STLABI_COMPAT_CFLAGS) $(PB_COMPAT_CFLAGS)
COMPAT_CXXFLAGS:=$(STLABI_COMPAT_CFLAGS) $(PB_COMPAT_CFLAGS)
ifeq ($(TARGET_MACHINE), arm-linux-gnueabi)
COMPAT_CFLAGS+=$(UBUNTU_COMPAT_CFLAGS)
COMPAT_CXXFLAGS+=$(UBUNTU_COMPAT_CFLAGS)
endif
else ifeq ($(TARGET), kindle)
ARM_ARCH:=$(ARMV7_A8_ARCH)
ARM_ARCH+=-mfloat-abi=softfp
ifeq ($(TARGET_MACHINE), arm-linux-gnueabi)
COMPAT_CFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
COMPAT_CXXFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
endif
else ifeq ($(TARGET), kindlepw2)
ARM_ARCH:=$(ARMV7_A9_ARCH)
ARM_ARCH+=-mfloat-abi=softfp
ifeq ($(TARGET_MACHINE), arm-linux-gnueabi)
COMPAT_CFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
COMPAT_CXXFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
endif
else ifeq ($(TARGET), kindlehf)
# While we *would* like to bias towards in-order CPUs (e.g., A7/A53), we can't because we have to support the PW4,
# which runs on an A9, and that's VFPv3, and not VFPv4 (and that seems to matter, despite us technically always prefering NEON).
ARM_ARCH:=$(ARMV7_A9_ARCH)
ARM_ARCH+=-mfloat-abi=hard
ifeq ($(TARGET_MACHINE), arm-linux-gnueabihf)
COMPAT_CFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
COMPAT_CXXFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
endif
else ifeq ($(TARGET), kindle-legacy)
ARM_ARCH:=$(ARMV6_1136_ARCH)
ARM_ARCH+=-mfloat-abi=softfp
ifeq ($(TARGET_MACHINE), arm-linux-gnueabi)
COMPAT_CFLAGS:=$(MG2K12_COMPAT_CFLAGS)
COMPAT_CXXFLAGS:=$(MG2K12_COMPAT_CXXFLAGS)
endif
COMPAT_CFLAGS:=$(NILUJE_COMPAT_CFLAGS)
# Works around potential deadlocks with local statics in LunaSVG (cxa_guard -> futex)
# We're not multi-threaded, so, whatever.
# c.f., https://github.com/koreader/koreader/discussions/11246
COMPAT_CXXFLAGS+=-fno-threadsafe-statics
else ifeq ($(TARGET), android)
ifeq ($(ANDROID_ARCH), arm)
ARM_ARCH:=$(ANDROID_ARM_ARCH)
ARM_ARCH+=-mfloat-abi=softfp
else ifeq ($(ANDROID_ARCH), arm64)
ARM_ARCH:=$(ANDROID_ARM_ARCH)
else ifeq ($(ANDROID_ARCH), x86)
endif
ifneq (,$(filter arm x86,$(ANDROID_ARCH)))
# NOTE: to be removed when upgrading the minimal supported API level to 24.
# (https://android.googlesource.com/platform/bionic/+/master/docs/32-bit-abi.md)
export ac_cv_sys_file_offset_bits=32
COMPAT_CFLAGS += -U_FILE_OFFSET_BITS -D_FILE_OFFSET_BITS=32
endif
else ifeq ($(TARGET), remarkable)
ARM_ARCH:=$(ARMV7_A9_ARCH)
ARM_ARCH+=-mfloat-abi=hard
else ifeq ($(TARGET), sony-prstux)
ARM_ARCH:=$(ARMV7_A8_ARCH)
ARM_ARCH+=-mfloat-abi=hard
else ifeq ($(TARGET), cervantes)
ARM_ARCH:=$(ARMV7_GENERIC_ARCH)
ARM_ARCH+=-mfloat-abi=softfp
ifeq ($(TARGET_MACHINE), arm-linux-gnueabi)
COMPAT_CFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
COMPAT_CXXFLAGS:=$(UBUNTU_COMPAT_CFLAGS)
endif
else ifeq ($(TARGET), arm-generic)
# Defaults to generic crap
ARM_ARCH:=$(ARMV6_GENERIC_ARCH)
ARM_ARCH+=-mfloat-abi=softfp
else ifeq ($(TARGET), linux)
ifeq ($(LINUX_ARCH), arm)
ARM_ARCH:=$(ARMV7_GENERIC_ARCH)
ARM_ARCH+=-mfloat-abi=hard
else ifeq ($(LINUX_ARCH), arm64)
ARM_ARCH:=$(ARM64_GENERIC_ARCH)
endif
else
# else, we are compiling emulator on x86
ARM_ARCH:=
endif
HOST_ARCH:=-march=native
ifdef APPIMAGE
# We want to run the AppImage on any 64-bit CPU
HOST_ARCH:=-mtune=generic -march=x86-64
endif
ifeq ($(TARGET), linux)
HOST_ARCH:=-mtune=generic
endif
ifdef MACOS
HOST_ARCH:=-mtune=generic
endif
ifdef DARWIN_AARCH64_HOST
# At the moment of writing, apple-m1 is the lowest common denominator for Apple silicon chips. Should work for M2 as well
HOST_ARCH:=-mcpu=apple-m1
endif
# Some of our deps require C11 & C++17 (`if constexpr (…)`) support.
# NOTE: Technically, this also means we require GCC >= 7.1 (2017) or Clang >= 5.0.0 (2017),
hashsign := \#
hasminstd = $(shell printf '%s\n' '$(hashsign)if $3 >= $4L' 'yes' '$(hashsign)else' 'no' '$(hashsign)endif' '$3' | $1 -x $2 -P -E -)
ifneq (yes,$(firstword $(call hasminstd,$(CC),c,__STDC_VERSION__,201100)))
CSTD_FLAGS := -std=gnu11
endif
ifneq (yes,$(firstword $(call hasminstd,$(CXX),c++,__cplusplus,201700)))
CXXSTD_FLAGS := -std=gnu++17
endif
# Improve reproducibility.
BASE_CFLAGS += -ffile-prefix-map=$(abspath $(KOR_BASE))/=
HOSTCFLAGS:=$(HOST_ARCH) $(BASE_CFLAGS) $(QFLAGS)
CFLAGS:=$(BASE_CFLAGS) $(QFLAGS) $(CSTD_FLAGS)
CXXFLAGS:=$(BASE_CFLAGS) $(QFLAGS) $(CXXSTD_FLAGS)
ifndef DARWIN
LDFLAGS := -Wl,-O1 -Wl,--as-needed $(COMPAT_LDFLAGS)
# To prefer our shipped libraries over the system's,
# we set a couple rpath via an include file to make sure it goes through buildsystem indirection unscathed...
# NOTE: We enforce DT_RPATH over DT_RUNPATH because DT_RUNPATH is *not* honored for *transitive* dependencies,
# which can lead to hilarious catastrophe if such a dependency pulls a SONAME identical to something we ship,
# because it will *not* load ours, but still let ours be loaded after that...
# (Assuming no LD_LIBRARY_PATH are set, since the search order is basically RPATH -> LD_LIBRARY_PATH -> RUNPATH).
# c.f., https://github.com/koreader/koreader-base/pull/1638#issuecomment-1636725691
# And https://bugs.launchpad.net/ubuntu/+source/eglibc/+bug/1253638/comments/5 for a nice recap.
ifneq ($(TARGET), android)
LDFLAGS += -Wl,@$(abspath $(KOR_BASE)/origin.ldflags)
endif
else
LDFLAGS := -Wl,-rpath,@executable_path/libs,-rpath,@executable_path/../koreader/libs
endif
# NOTE: Follow the NDK's lead
ifeq ($(TARGET), android)
LDFLAGS+=-no-canonical-prefixes
ifeq ($(ANDROID_ARCH), arm)
# FIXME: `--Wl,--fix-cortex-a8` still needed?
LDFLAGS+=-Wl,--fix-cortex-a8 -march=armv7-a
endif
# Fix https://github.com/android/ndk/issues/1614
LDFLAGS+=$(shell $(CC) -print-libgcc-file-name)
endif
ifeq ($(TARGET), win32)
LDFLAGS+=-Wl,--allow-multiple-definition -static-libgcc
endif
# this will create a path named build/arm-none-linux-gnueabi or similar
OUTPUT_DIR ?= $(KOR_BASE)/build/$(MACHINE)
CMAKE_DIR = $(OUTPUT_DIR)/cmake
STAGING_DIR = $(OUTPUT_DIR)/staging
SPEC_ROCKS_DIR = $(OUTPUT_DIR)/spec/rocks
BUILD_ENTRYPOINT = $(CMAKE_DIR)/build.ninja
# you can configure an emulation for the (eink) framebuffer here.
# the application won't use the framebuffer (and the special e-ink ioctls)
# in that case.
ifdef EMULATE_READER
# Regular
REALCC:=$(HOSTCC)
REALCXX:=$(HOSTCXX)
HOSTCC:=$(strip $(CCACHE) $(HOSTCC))
HOSTCXX:=$(strip $(CCACHE) $(HOSTCXX))
CC:=$(HOSTCC)
CXX:=$(HOSTCXX)
STRIP:=$(HOSTSTRIP)
AR:=$(HOSTAR)
LD:=$(HOSTLD)
OBJCOPY:=$(HOSTOBJCOPY)
RANLIB:=$(HOSTRANLIB)
READELF:=$(HOSTREADELF)
CFLAGS+=$(HOST_ARCH)
CXXFLAGS+=$(HOST_ARCH)
export PKG_CONFIG_LIBDIR := $(abspath $(STAGING_DIR)/lib/pkgconfig)$(if $(PKG_CONFIG_LIBDIR),:$(PKG_CONFIG_LIBDIR))
else
REALCC:=$(CC)
REALCXX:=$(CXX)
CC:=$(strip $(CCACHE) $(CC))
CXX:=$(strip $(CCACHE) $(CXX))
CFLAGS+=$(ARM_ARCH) $(COMPAT_CFLAGS)
CXXFLAGS+=$(ARM_ARCH) $(COMPAT_CXXFLAGS)
# Make sure we always have mmap() support.
# This is critical for FreeType, since the usage of platform-specific code depends on this,
# and without it, we don't get CLOEXEC handling, which is problematic on Kobos, where we spawn stuff that might
# survive us, and if they inherit some of our fds pointing to the removable user area, bad things happen when it
# gets unmounted for USBMS handling....
export ac_cv_func_mmap_fixed_mapped=yes
# Never let pkg-config pickup native libraries (we don't actually rely on pkg-config anywhere, we do it all by hand).
# NOTE: Let people shoot themselves in the foot with custom pkg-config wrappers?
#undefine PKG_CONFIG
#unexport PKG_CONFIG
export PKG_CONFIG_LIBDIR := $(abspath $(STAGING_DIR)/lib/pkgconfig)
export PKG_CONFIG_PATH :=
# Nix the NixOS override, just to be sure.
export PKG_CONFIG_PATH_FOR_TARGET :=
# We'll want to ship the shared STL lib on non-SDL platforms
ifndef SDL
ifdef SHARED_STL_LIB
SHIP_SHARED_STL:=true
endif
endif
endif
# not necessary to use PIC flag for win32 which has relocation table in dll
ifneq ($(TARGET), win32)
CFLAGS+=-fPIC
CXXFLAGS+=-fPIC
endif
# Improve reproducibility.
ifndef DARWIN
LDFLAGS += -Wl,--build-id=none
endif
CFLAGS := $(strip $(CFLAGS))
CXXFLAGS := $(strip $(CXXFLAGS))
LDFLAGS := $(strip $(LDFLAGS))
# NOTE: We generally want SIMD/ASM juicy stuff everywhere
WANT_SIMD=1
# ... but on ARM targets that are not NEON capable, that obviously won't fly...
ifneq (,$(filter -march=arm%,$(CFLAGS)))
# We're on ARM.
ifeq (,$(filter -march=armv8-a -mfpu=neon,$(CFLAGS)))
# We don't support NEON.
WANT_SIMD=
endif
endif
# ... ditto on Android x86, because the TC is old as hell, and that upsets libjpeg-turbo...
ifeq ($(TARGET), android)
ifeq ($(ANDROID_ARCH), x86)
WANT_SIMD=
endif
endif
ifneq (,$(DARWIN))
LIB_EXT = .dylib
else ifneq (,$(WIN32))
LIB_EXT = .dll
else
LIB_EXT = .so
endif
# you can probably leave these settings alone:
THIRDPARTY_DIR = $(KOR_BASE)/thirdparty
LUAROCKS_BINARY := $(abspath $(STAGING_DIR)/bin/luarocks)
# Dynamic libraries must be compiled with "-shared" and "-fPIC".
# (And we enforce PIC everywhere via CFLAGS/CXXFLAGS).
DYNLIB_LDFLAGS = -shared
ifdef DARWIN
DYNLIB_LDFLAGS += -dynamiclib -undefined dynamic_lookup
endif
MONOLIBTIC ?= $(ANDROID)
# CMake toolchain file. {{{
CMAKE_TCF = $(CMAKE_DIR)/toolchain.cmake
CMAKE_FLAGS += -DCMAKE_TOOLCHAIN_FILE='$(abspath $(CMAKE_TCF))'
# CMAKE_SYSTEM_PROCESSOR
# FIXME: use more fine grained values for ARM targets?
# (Cf. https://github.com/taka-no-me/android-cmake)
ifneq (,$(filter aarch64-%,$(CHOST)))
CMAKE_SYSTEM_PROCESSOR = aarch64
else ifneq (,$(filter arm-% armv7a-%,$(CHOST)))
CMAKE_SYSTEM_PROCESSOR = arm
else ifneq (,$(filter i686-%,$(CHOST)))
CMAKE_SYSTEM_PROCESSOR = i686
else ifneq (,$(filter x86_64-%,$(CHOST)))
CMAKE_SYSTEM_PROCESSOR = x86_64
else ifneq (,$(CHOST))
$(error CMAKE_SYSTEM_PROCESSOR not set! (CHOST is $(CHOST)))
endif
# Native & cross definitions.
define cmake_toolchain
cmake_minimum_required(VERSION 3.16.3)
# CMake Cross ToolChain config file. Adapted from Debian's dpkg-cross ;).
# c.f., https://cmake.org/cmake/help/latest/manual/cmake-toolchains.7.html#cross-compiling-toolchain
# NOTE: Remember that CMake is a special snowflake that completely *ignores* CPPFLAGS,
# because of course it does...
# (https://gitlab.kitware.com/cmake/cmake/issues/12928)
# Build type.
set(CMAKE_BUILD_TYPE $(if $(KODEBUG),Debug,Release))
set(CMAKE_DEBUG_POSTFIX "")
# Disable run time path handling (we have our own).
# And no, just using `set(CMAKE_SKIP_RPATH TRUE)`
# does not work: we end up with empty RPATH entries
# in some cases (e.g. with libwebp).
set(CMAKE_INSTALL_RPATH "")
set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
# C language.
$(if $(CCACHE),set(CMAKE_C_COMPILER_LAUNCHER $(CCACHE)))
set(CMAKE_C_COMPILER $(REALCC))
set(CMAKE_C_FLAGS_INIT "$(strip $(CFLAGS))")
# C++ language.
$(if $(CCACHE),set(CMAKE_CXX_COMPILER_LAUNCHER $(CCACHE)))
set(CMAKE_CXX_COMPILER $(REALCXX))
set(CMAKE_CXX_FLAGS_INIT "$(strip $(CXXFLAGS))")
# OBJC language (for SDL2 on macOS).
$(if $(CCACHE),set(CMAKE_OBJC_COMPILER_LAUNCHER $(CCACHE)))
set(CMAKE_OBJC_COMPILER $(REALCC))
# Release only flags: prevent CMake from messing
# with our custom optimization level and flags.
set(CMAKE_C_FLAGS_RELEASE "")
set(CMAKE_CXX_FLAGS_RELEASE "")
# Linker.
set(CMAKE_EXE_LINKER_FLAGS_INIT "$(strip $(LDFLAGS))")
set(CMAKE_SHARED_LINKER_FLAGS_INIT "$(strip $(filter-out -shared -dynamiclib,$(LDFLAGS) $(DYNLIB_LDFLAGS)))")
set(CMAKE_MODULE_LINKER_FLAGS_INIT $${CMAKE_SHARED_LINKER_FLAGS_INIT})
# Tools.
set(CMAKE_AR $(AR) CACHE FILEPATH "Archive")
set(CMAKE_LD $(LD) CACHE FILEPATH "LD")
set(CMAKE_NM $(NM) CACHE FILEPATH "NM")
set(CMAKE_RANLIB $(RANLIB) CACHE FILEPATH "RanLib")
set(CMAKE_READELF $(READELF) CACHE FILEPATH "ReadELF")
$(if $(WIN32),set(CMAKE_RC_COMPILER $(RC) CACHE FILEPATH "Resource Compiler"))
set(CMAKE_STRIP true CACHE FILEPATH "Strip")
# Set path(s) to search for libraries/binaries/headers.
set(CMAKE_FIND_ROOT_PATH $(abspath $(STAGING_DIR)))
set(CMAKE_PREFIX_PATH $${CMAKE_FIND_ROOT_PATH})
# So we don't include an outdated `png.h` provided by one of macOS' frameworks.
set(CMAKE_FIND_FRAMEWORK LAST)
# Install directories.
set(CMAKE_INSTALL_PREFIX $(abspath $(STAGING_DIR)) CACHE FILEPATH "install prefix")
# NOTE: can't use a relative paths (as recommended in the documentation)
# because libjpeg-turbo only configures successfully with absolute paths.
set(CMAKE_INSTALL_BINDIR $${CMAKE_INSTALL_PREFIX}/bin CACHE FILEPATH "install directory: binaries")
set(CMAKE_INSTALL_INCLUDEDIR $${CMAKE_INSTALL_PREFIX}/include CACHE FILEPATH "install directory: includes")
set(CMAKE_INSTALL_LIBDIR $${CMAKE_INSTALL_PREFIX}/lib CACHE FILEPATH "install directory: libraries")
set(APPLE $(DARWIN))
set(LINUX $(if $(DARWIN)$(WIN32),,1))
set(WIN32 $(WIN32))
endef
# Cross-compile only definitions.
define cmake_cross_toolchain
$(cmake_toolchain)
# OS.
# NOTE: use Linux for Android too (cf. https://github.com/taka-no-me/android-cmake and
# https://android.googlesource.com/platform/ndk/+/master/build/cmake/android.toolchain.cmake)
# In the meantime, I'll be sitting in the corner, crying hysterically.
set(CMAKE_SYSTEM_NAME $(if $(DARWIN),Darwin,$(if $(WIN32),Windows,Linux)))
# Magical value that inhibits all of CMake's own NDK handling code. (Or shit goes boom.)
$(if $(ANDROID),set(CMAKE_SYSTEM_VERSION 1))
$(if $(ANDROID),set(ANDROID_STL c++_shared))
# Also disable versioning of shared objects.
$(if $(ANDROID),set(CMAKE_PLATFORM_NO_VERSIONED_SONAME TRUE))
# Target architecture.
set(CMAKE_SYSTEM_PROCESSOR $(CMAKE_SYSTEM_PROCESSOR))
# Search for programs in the build host directories.
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
# For libraries and headers in the target directories.
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
# As well as for CMake packages too.
set(CMAKE_FIND_ROOT_PATH_MODE_PACKAGE ONLY)
endef
# }}}
# KOReader variables: for forwarding definitions to CMake. {{{
CMAKE_KOVARS = $(CMAKE_DIR)/koreader_vars.cmake
CMAKE_FLAGS += -DCMAKE_KOVARS='$(abspath $(CMAKE_KOVARS))'
define cmake_koreader_vars
set(BASE_CFLAGS "$(strip $(BASE_CFLAGS))")
set(CCACHE "$(strip $(CCACHE))")
set(CHOST $(CHOST))
set(EMULATE_READER $(EMULATE_READER))
set(HOSTCC "$(strip $(HOSTCC))")
set(HOSTCFLAGS "$(strip $(HOSTCFLAGS))")
set(HOSTCXX "$(strip $(HOSTCXX))")
set(LIB_EXT $(LIB_EXT))
set(VECTO_CFLAGS "$(VECTO_CFLAGS)")
set(BASE_DIR $(abspath $(KOR_BASE)))
set(OUTPUT_DIR $(abspath $(OUTPUT_DIR)))
set(STAGING_DIR $(abspath $(STAGING_DIR)))
set(SPEC_ROCKS_DIR $(abspath $(SPEC_ROCKS_DIR)))
set(THIRDPARTY_DIR $(abspath $(THIRDPARTY_DIR)))
set(MAKE $(MAKE))
set(NINJA $(NINJA))
list(PREPEND CMAKE_MODULE_PATH $${THIRDPARTY_DIR}/cmake_modules)
# Convenience autotools-like variables.
set(CC "$(strip $(CC))")
set(CFLAGS "$(strip $(CFLAGS))")
set(CXX "$(strip $(CXX))")
set(CXXFLAGS "$(strip $(CXXFLAGS))")
set(LD "$(strip $(LD))")
set(LDFLAGS "$(strip $(LDFLAGS))")
set(DYNLIB_LDFLAGS "$(strip $(LDFLAGS) $(DYNLIB_LDFLAGS))")
set(AR "$(strip $(AR))")
set(NM "$(strip $(NM))")
set(OBJCOPY "$(strip $(OBJCOPY))")
set(RANLIB "$(strip $(RANLIB))")
set(RC "$(strip $(RC))")
set(STRIP "$(strip $(STRIP))")
# Meson.
set(MESON_TOOLCHAINS --native-file=$(abspath $(MESON_HOST_TOOLCHAIN)) $(if $(filter-out $(MESON_HOST_TOOLCHAIN),$(MESON_CROSS_TOOLCHAIN)),--cross-file=$(abspath $(MESON_CROSS_TOOLCHAIN))))
set(MESON_FILE_ARG $(if $(filter-out $(MESON_HOST_TOOLCHAIN),$(MESON_CROSS_TOOLCHAIN)),--cross-file,--native-file))
# Miscellaneous.
set(MONOLIBTIC $(MONOLIBTIC))
set(USE_LJ_WPACLIENT $(USE_LJ_WPACLIENT))
set(USE_SDL $(SDL))
set(WANT_SIMD $(WANT_SIMD))
# Platform flags.
set(ANDROID $(ANDROID))
set(APPIMAGE $(APPIMAGE))
set(CERVANTES $(CERVANTES))
set(DARWIN_AARCH64 $(DARWIN_AARCH64))
set(KINDLE $(KINDLE))
set(KOBO $(KOBO))
set(LEGACY $(LEGACY))
set(MACOS $(MACOS))
set(POCKETBOOK $(POCKETBOOK))
set(REMARKABLE $(REMARKABLE))
set(SONY_PRSTUX $(SONY_PRSTUX))
set(SKIP_LUAJIT_BIN $(SKIP_LUAJIT_BIN))
set(USE_LUAJIT_LIB $(USE_LUAJIT_LIB))
endef
# }}}
# Meson toolchain file(s). {{{
comma:=,
define meson_toolchain
[constants]
CCACHE = $(if $(CCACHE),'$(CCACHE)','env')
CPPFLAGS = ['-I$(abspath $(STAGING_DIR)/include)']
CFLAGS = []
CXXFLAGS = []
LDFLAGS = ['-L$(abspath $(STAGING_DIR)/lib)']
[binaries]
c = [CCACHE, '$(strip $(REALCC))']
# c_ld
cpp = [CCACHE, '$(strip $(REALCXX))']