-
Notifications
You must be signed in to change notification settings - Fork 365
/
configure.ac
1367 lines (1229 loc) · 46.5 KB
/
configure.ac
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
dnl Init.
AC_INIT(dosbox-x,2024.03.01,[https://github.com/joncampbell123/dosbox-x/issues],[],[https://dosbox-x.com])
AC_PREREQ(2.60)
AC_CONFIG_SRCDIR(README.md)
dnl Utility function ============================
# AC_CHECK_CPPFLAGS(ADDITIONAL-CPPFLAGS, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
#
# checks whether the $(C) compiler accepts the ADDITIONAL-CPPFLAGS
# if so, they are added to the CPPFLAGS
AC_DEFUN([AC_CHECK_CPPFLAGS],
[
AC_MSG_CHECKING([whether $CPP accepts "$1"])
temp_check_cppflags="${CPPFLAGS}"
CPPFLAGS="$1 ${CPPFLAGS}"
AC_PREPROC_IFELSE(
[AC_LANG_SOURCE([[int main(void){return 0;}]])],
[AC_MSG_RESULT([yes])],
[AC_MSG_RESULT([no]); CPPFLAGS="${temp_check_cppflags}"])
])# AC_CHECK_CPPFLAGS
dnl LIBRARY TEST: OpenGL support
AC_CHECK_LIB(GL, main, have_gl_lib=yes, have_gl_lib=no , )
AC_CHECK_LIB(opengl32, main, have_opengl32_lib=yes,have_opengl32_lib=no , )
AC_CHECK_HEADER(GL/gl.h, have_gl_h=yes , have_gl_h=no , )
dnl LIBRARY TEST: Direct3D 9 header support
AC_CHECK_HEADER(d3d9.h, have_d3d9_h=yes , have_d3d9_h=no , )
AC_CHECK_HEADER(d3dx9math.h, have_d3dx9math_h=yes , have_d3dx9math_h=no , )
dnl Utility function ============================
# AC_CHECK_CXXFLAGS(ADDITIONAL-CXXFLAGS, ACTION-IF-FOUND, ACTION-IF-NOT-FOUND)
#
# checks whether the $(CXX) (c++) compiler accepts the ADDITIONAL-CXXFLAGS
# if so, they are added to the CXXFLAGS
AC_DEFUN([AC_CHECK_CXXFLAGS],
[
AC_MSG_CHECKING([whether $CXX accepts "$1"])
cat > conftest.c++ << EOF
int main(){
return 0;
}
EOF
if $CXX $CPPFLAGS $CXXFLAGS -Werror -c -o conftest.o conftest.c++ [$1] > /dev/null 2>&1
then
AC_MSG_RESULT([yes])
CXXFLAGS="${CXXFLAGS} [$1]"
AC_CHECK_CPPFLAGS([$1])
[$2]
else
AC_MSG_RESULT([no])
[$3]
fi
])# AC_CHECK_CXXFLAGS
dnl End Utility function ============================
dnl Detect the canonical host and target build environment
AC_CANONICAL_HOST
AC_CANONICAL_BUILD
dnl Setup for automake
AM_INIT_AUTOMAKE([foreign subdir-objects])
AC_CONFIG_HEADER(config.h)
AH_BOTTOM([/*
Define HAS_CDIRECTLPT as 1 if C_DIRECTLPT is defined (as 1) *and* parallel
pass-through is available on the current platform. It is only available on
x86{_64} with Windows or BSD, and on Linux.
We cannot override the value of C_DIRECTLPT, because configure will replace
"#undef C_DIRECTLPT" or "#define C_DIRECTLPT 0" with "#define C_DIRECTLPT 1".
*/
#ifdef C_DIRECTLPT
#if ((defined __i386__ || defined __x86_64__ || defined _M_IX86 || defined _M_X64) && \
(defined WIN32 || defined BSD || defined __CYGWIN__)) || \
/* WIN32 is not defined by default on Cygwin */ \
defined LINUX /* Linux, including non-x86 (e.g. Raspberry Pi) */
#define HAS_CDIRECTLPT 1
#endif
#endif // C_DIRECTLPT
#ifndef HAS_CDIRECTLPT
#define HAS_CDIRECTLPT 0
#endif])
dnl Checks for programs.
AC_PROG_MAKE_SET
AC_PROG_CC
AC_PROG_CPP
AC_PROG_CXX
AC_PROG_OBJCXX
AC_PROG_INSTALL
AC_CHECK_TOOL(AR, ar)
AC_PROG_RANLIB
AC_PREFIX_DEFAULT([/usr/local])
dnl this code needs large file support on 32-bit systems
AC_SYS_LARGEFILE
#Check for big endian machine, should #define WORDS_BIGENDIAN if so
AC_C_BIGENDIAN
dnl Checks for typedefs, structures, and compiler characteristics.
AC_C_CONST
AC_C_INLINE
AC_TYPE_SIZE_T
AC_STRUCT_TM
dnl some semi complex check for sys/socket so it works on darwin as well
AC_CHECK_HEADERS([stdlib.h sys/types.h])
AC_CHECK_HEADERS([sys/socket.h netinet/in.h pwd.h], [], [],
[#include <stdio.h>
#ifdef STDC_HEADERS
# include <stdlib.h>
# include <stddef.h>
#else
# ifdef HAVE_STDLIB_H
# include <stdlib.h>
# endif
#endif
#ifdef HAVE_SYS_TYPES_H
# include <sys/types.h>
#endif
])
dnl C++11 is deprecated in this codebase.
dnl C++14 is recommended at this time, will eventually become mandatory.
dnl AC_CHECK_CXXFLAGS will prepend gnu++11 to CXXFLAGS if supported, for us.
OLDCFLAGS="$CFLAGS"
OLDCPPFLAGS="$CPPFLAGS"
OLDCXXFLAGS="$CXXFLAGS"
AC_MSG_CHECKING([checking for C++14 support])
AC_CHECK_CXXFLAGS([ -std=gnu++14 ], [ ], [
warn_cpp11=1
])
CXXFLAGS="$OLDCXXFLAGS"
CPPFLAGS="$OLDCPPFLAGS"
CFLAGS="$OLDCFLAGS"
AC_MSG_CHECKING([checking for C++11 support])
AC_CHECK_CXXFLAGS([ -std=gnu++11 ], [ ], [
warn_cpp0x=1
])
CXXFLAGS="$OLDCXXFLAGS"
CPPFLAGS="$OLDCPPFLAGS"
CFLAGS="$OLDCFLAGS"
if test x$warn_cpp0x = x1; then
AC_MSG_ERROR([ Your compiler must support C++11 or better ])
fi
dnl Allow devs to force compile as C++11 as long as this code supports C++11 as a baseline
AC_ARG_ENABLE(force-cxx11,AC_HELP_STRING([--enable-force-cxx11],[Force compile as C++11]),force_cxx11=yes)
if test x$warn_cpp11 = x1; then
AC_MSG_WARN([ Your compiler does not support C++14. Currently it is recommended. At some point in the future, it will be required ])
CFLAGS="$CFLAGS -std=gnu11";
CXXFLAGS="$CXXFLAGS -std=gnu++11";
elif test x$force_cxx11 = xyes; then
CFLAGS="$CFLAGS -std=gnu11";
CXXFLAGS="$CXXFLAGS -std=gnu++11";
else
AC_MSG_WARN([ DOSBox-X is still intended to support compilation as C++11. If you add new code please make sure it works as C++11 by running ./configure with --enable-force-cxx11 ])
CFLAGS="$CFLAGS -std=gnu11"; # no such "gnu14"
CXXFLAGS="$CXXFLAGS -std=gnu++14";
fi
dnl Allow the SDL drawn menu to be enabled on Windows or macOS instead of their native menu system.
AH_TEMPLATE(C_FORCE_MENU_SDLDRAW,[Define to 1 to force SDL-drawn menus])
AC_ARG_ENABLE(force-menu-sdldraw,AC_HELP_STRING([--enable-force-menu-sdldraw],[Force SDL drawn menus]),enable_force_menu_sdldraw=yes)
dnl This is how the build script can specify a HX DOS extender target
AH_TEMPLATE(C_HX_DOS,[Define to 1 to target HX DOS])
AC_ARG_ENABLE(hx-dos,AC_HELP_STRING([--enable-hx-dos],[Enable HX target]),enable_hx=yes)
dnl This is how the build script can use libopencow for win9x unicode
# AH_TEMPLATE(C_OPENCOW,[Define to 1 to enable opencow])
AC_ARG_ENABLE(opencow,AC_HELP_STRING([--enable-opencow],[Enable OpenCOW]),enable_opencow=yes)
dnl Disable SDLnet for win9x builds
AC_ARG_ENABLE(sdlnet,AC_HELP_STRING([--disable-sdlnet],[Disable SDLNet]),disable_sdl_net=yes)
dnl Let me know if you're targeting Emscripten
AH_TEMPLATE(C_EMSCRIPTEN,[Define to 1 to target Emscripten])
AC_ARG_ENABLE(emscripten,AC_HELP_STRING([--enable-emscripten],[Enable Emscripten target]),enable_emscripten=$enableval,enable_emscripten=no)
dnl Allow disabling X11 integration if your platform doesn't support it
AC_ARG_ENABLE(x11,AC_HELP_STRING([--disable-x11],[Don't enable X11 integration]))
dnl Optimize for speed by default
AC_ARG_ENABLE(optimize,AC_HELP_STRING([--disable-optimize],[Don't enable compiler optimizations]))
dnl FIXME: Remove default "-O2" set by some autotools versions. TODO: check availability of sed.
CFLAGS=["`echo $CFLAGS' ' | sed -e 's/-O[^ ]* //g'`"]
CXXFLAGS=["`echo $CXXFLAGS' ' | sed -e 's/-O[^ ]* //g'`"]
if test x$enable_optimize != xno; then
if test x$enable_emscripten = xyes; then
CFLAGS="$CFLAGS -Os"
CXXFLAGS="$CXXFLAGS -Os"
else
CFLAGS="$CFLAGS -O2"
CXXFLAGS="$CXXFLAGS -O2"
fi
fi
if test x$enable_emscripten = xyes; then
AC_DEFINE(C_EMSCRIPTEN,1,[Targeting Emscripten])
AC_DEFINE(C_DIRECTSERIAL, 0, [ Define to 1 if you want serial pass-through support (Win32, Posix and OS/2).])
fi
dnl Some stuff for the icon.
case "$host" in
*-*-cygwin* | *-*-mingw32*)
if test x$enable_hx = xyes; then
CXXFLAGS="$CXXFLAGS -DHX_DOS"
AC_DEFINE(C_HX_DOS,1,[Targeting HX DOS extender])
fi
;;
esac
if test x$enable_force_menu_sdldraw = xyes; then
CXXFLAGS="$CXXFLAGS -DFORCE_SDLDRAW"
AC_DEFINE(C_FORCE_MENU_SDLDRAW,1,[Force SDL drawn menus])
fi
dnl TEST: Environ can be included
AC_MSG_CHECKING(if environ can be included)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[
#include <unistd.h>
#include <stdlib.h>]],[[*environ;]])],
[AC_MSG_RESULT(yes);AC_DEFINE(ENVIRON_INCLUDED,1,[environ can be included])],AC_MSG_RESULT(no))
dnl TEST: Environ can be linked
AC_MSG_CHECKING(if environ can be linked)
AC_LINK_IFELSE([AC_LANG_PROGRAM([[extern char ** environ;]],[[*environ;]])],
[AC_MSG_RESULT(yes);AC_DEFINE(ENVIRON_LINKED,1,[environ can be linked])],AC_MSG_RESULT(no))
dnl TEST: dirent includes d_type
AC_MSG_CHECKING([if dirent includes d_type])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#include <sys/types.h>
#include <dirent.h>
void blah(){
struct dirent d_test;
d_test.d_type = 0;
}])],[AC_MSG_RESULT(yes);AC_DEFINE(DIRENT_HAS_D_TYPE,1,[struct dirent has d_type])],AC_MSG_RESULT(no))
dnl TEST: Check for powf
AC_MSG_CHECKING(for powf in libm);
LIBS_BACKUP=$LIBS;
LIBS="$LIBS -lm";
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <math.h>]],[[
powf(1.0f, 1.0f);
]])], [AC_MSG_RESULT(yes)], [AC_DEFINE([DB_HAVE_NO_POWF],[1],[libm does not include powf])])
LIBS=$LIBS_BACKUP
dnl Look for clock_gettime, a DB_HAVE_CLOCK_GETTIME is set when present
AH_TEMPLATE([DB_HAVE_CLOCK_GETTIME],[Determines if the function clock_gettime is available.])
AC_SEARCH_LIBS([clock_gettime], [rt] , [found_clock_gettime=yes], [found_clock_gettime=no])
if test x$found_clock_gettime = xyes; then
AC_DEFINE(DB_HAVE_CLOCK_GETTIME)
fi
dnl TEST: Check if the compiler support attributes
AH_TEMPLATE([C_HAS_ATTRIBUTE],[Determines if the compilers supports attributes for structures.])
AC_MSG_CHECKING(if compiler allows __attribute__)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
typedef struct { } __attribute__((packed)) junk;]],
[[ ]])],[ AC_MSG_RESULT(yes);AC_DEFINE(C_HAS_ATTRIBUTE)],AC_MSG_RESULT(no))
dnl TEST: Check if the compiler supports certain attributes
OLDCFLAGS="$CFLAGS"
CFLAGS="-Werror"
AH_TEMPLATE([C_ATTRIBUTE_ALWAYS_INLINE],[Determines if the compilers supports always_inline attribute.])
AC_MSG_CHECKING(if compiler allows __attribute__((always_inline)) )
AC_COMPILE_IFELSE([AC_LANG_SOURCE([ inline void __attribute__((always_inline)) test(){}
])],[ AC_MSG_RESULT(yes);AC_DEFINE(C_ATTRIBUTE_ALWAYS_INLINE)],AC_MSG_RESULT(no))
AH_TEMPLATE([C_ATTRIBUTE_FASTCALL],[Determines if the compilers supports fastcall attribute.])
AC_MSG_CHECKING(if compiler allows __attribute__((fastcall)) )
AC_COMPILE_IFELSE([AC_LANG_SOURCE([ void __attribute__((fastcall)) test(){}
])],[ AC_MSG_RESULT(yes);AC_DEFINE(C_ATTRIBUTE_FASTCALL)],AC_MSG_RESULT(no))
CFLAGS="$OLDCFLAGS"
dnl TEST: Check if the compiler supports __builtin_expect
#Switch language to c++
AC_LANG_PUSH(C++)
AH_TEMPLATE([C_HAS_BUILTIN_EXPECT],[Determines if the compilers supports __builtin_expect for branch prediction.])
AC_MSG_CHECKING(if compiler allows __builtin_expect)
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]],[[
int x=10;if( __builtin_expect ((x==1),0) ) ;
]])], [ AC_MSG_RESULT(yes);AC_DEFINE(C_HAS_BUILTIN_EXPECT)],AC_MSG_RESULT(no))
#switch language back
AC_LANG_POP(C++)
dnl Check for mach_vm_remap (Darwin)
AH_TEMPLATE(C_HAVE_MACH_VM_REMAP,[Define to 1 if you have the mach_vm_remap function])
AC_CHECK_HEADER([mach/mach.h], [
AC_CHECK_FUNC([mach_vm_remap],[AC_DEFINE(C_HAVE_MACH_VM_REMAP,1)])
])
dnl Check for mprotect. Needed for 64 bits linux
AH_TEMPLATE(C_HAVE_MPROTECT,[Define to 1 if you have the mprotect function])
AC_CHECK_HEADER([sys/mman.h], [
AC_CHECK_FUNC([mprotect],[AC_DEFINE(C_HAVE_MPROTECT,1)])
])
dnl Check for memfd_create, for dynamic core. You need the glibc version, not just the syscall.
AH_TEMPLATE(C_HAVE_MEMFD_CREATE,[Define to 1 if you have the memfd_create function])
AC_CHECK_HEADER([sys/mman.h], [
AC_CHECK_FUNC([memfd_create],[AC_DEFINE(C_HAVE_MEMFD_CREATE,1)])
])
dnl Check for posix_memalign
AH_TEMPLATE(C_HAVE_POSIX_MEMALIGN,[Define to 1 if you have the posix_memalign function])
AC_CHECK_HEADER([stdlib.h], [
AC_CHECK_FUNC([posix_memalign],[AC_DEFINE(C_HAVE_POSIX_MEMALIGN,1)])
])
dnl Check for mmap
AH_TEMPLATE(C_HAVE_MMAP,[Define to 1 if you have the mmap function])
AC_CHECK_HEADER([sys/mman.h], [
AC_CHECK_FUNC([mmap],[AC_DEFINE(C_HAVE_MMAP,1)])
])
dnl Check for realpath. Used on Linux
AC_CHECK_FUNCS([realpath])
dnl Setpriority
AH_TEMPLATE(C_SET_PRIORITY,[Define to 1 if you have setpriority support])
AC_MSG_CHECKING(for setpriority support)
AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <sys/resource.h>
int main(int argc,char **argv) {
return setpriority (PRIO_PROCESS, 0,PRIO_MIN+PRIO_MAX);
};
])],AC_MSG_RESULT(yes);AC_DEFINE(C_SET_PRIORITY,1),AC_MSG_RESULT(no))
dnl Some target detection and actions for them
case "$host" in
*-*-darwin* | *-*-openbsd*)
dnl El Capitan's refusal to allow sudo make install to /usr/include, and the failure of most open source to
dnl include from /usr/local/include is irritating and tiresome...
CFLAGS="$CFLAGS -I/usr/local/include"
CPPFLAGS="$CPPFLAGS -I/usr/local/include"
;;
esac
if test x$enable_emscripten = xyes; then
CXXFLAGS="$CXXFLAGS"
else
dnl Some default CPU flags
case "$host_cpu" in
x86_64 | amd64)
# SSE is part of the x86_64 ABI
CXXFLAGS="$CXXFLAGS -msse"
;;
esac
fi
dnl Some needed libraries for OS2
dnl perhaps join this with the other target depended checks. move them upwards
if test x$host = xi386-pc-os2-emx ; then
CXXFLAGS="$CXXFLAGS -Zmt"
LDFLAGS="$LDFLAGS -Zomf -Zmt"
fi
dnl I would like to know of any concerns given by the C++ compiler.
dnl Clang/LLVM already does this to some degree, let's get GCC to do it too.
AC_CHECK_CXXFLAGS([ -Wall ])
AC_CHECK_CXXFLAGS([ -Wextra ])
AC_CHECK_CXXFLAGS([ -Wunused ])
AC_CHECK_CXXFLAGS([ -pedantic ])
AC_CHECK_CXXFLAGS([ -Wno-error=format-security ]) # imfc.cpp and later versions of GCC, see https://github.com/joncampbell123/dosbox-x/issues/4436
AC_CHECK_CXXFLAGS([ -Wno-error=incompatible-pointer-types ]) # required to compile speexdsp/fftwrap.c with GCC 14
#AC_CHECK_CXXFLAGS([ -Wconversion ]) DO NOT ENABLE. THIS WARNING IS WAY TOO PEDANTIC TO BE USEFUL, EXCEPT FOR SPECIFIC CASES
#AC_CHECK_CXXFLAGS([ -Wsign-conversion ])
AC_CHECK_CXXFLAGS([ -Wlogical-op ])
AC_CHECK_CXXFLAGS([ -Wsign-promo ])
AC_CHECK_CXXFLAGS([ -Wconversion-null ])
#AC_CHECK_CXXFLAGS([ -Woverloaded-virtual ]) NOT TOO USEFUL
AC_CHECK_CXXFLAGS([ -Wsuggest-override ])
AC_CHECK_CXXFLAGS([ -Wnon-virtual-dtor ])
AC_CHECK_CXXFLAGS([ -Wno-deprecated-declarations ])
dnl Let GCC 7.3.x know that the "fall through" switch cases in this codebase
dnl are often intentional.
AC_CHECK_CXXFLAGS([ -Wno-implicit-fallthrough ])
dnl Stop reporting "type punning" warnings, I'm sick of hearing about it.
AC_CHECK_CXXFLAGS([ -Wno-strict-aliasing ])
dnl other
AC_CHECK_CXXFLAGS([ -Wno-missing-field-initializers ])
AC_CHECK_CXXFLAGS([ -Wno-format-zero-length ])
dnl Clang/LLVM warning: don't care the address of a member may be unaligned, unless targeting ARM!
AC_CHECK_CXXFLAGS([ -Wno-address-of-packed-member ])
dnl Clang/LLVM warning: don't care about int to void*, since void* is either same size or larger
AC_CHECK_CXXFLAGS([ -Wno-int-to-void-pointer-cast ])
dnl Some stuff for the icon and other makefile platform stuff.
dnl Slightly double with the above, but that deals more with compiled features.
case "$host" in
*-*-cygwin* | *-*-mingw32*)
dnl Some stuff for the ico
AC_CHECK_TOOL(WINDRES, windres, :)
LDFLAGS="-static -static-libgcc -static-libstdc++ $LDFLAGS"
DBPLATFORM="win"
;;
*-*-darwin*)
WINDRES=":"
DBPLATFORM="mac"
;;
*)
WINDRES=":"
DBPLATFORM="other"
;;
esac
AM_CONDITIONAL(HAVE_WINDRES, test "x$WINDRES" != "x:")
AM_CONDITIONAL(MACOSX, test "x$DBPLATFORM" = "xmac")
AC_SUBST(WINDRES)
dnl LIBRARY TEST: SDL 2.x
SDL2_VERSION=2.0.5
AM_PATH_SDL2($SDL2_VERSION)
dnl LIBRARY TEST: SDL 1.x
SDL_VERSION=1.2.0
AM_PATH_SDL($SDL_VERSION)
dnl LIBRARY USE: SDL selection
if test -n "$SDL2_LIBS"; then
LIBS="$LIBS $SDL2_LIBS"
CPPFLAGS="$CPPFLAGS $SDL2_CFLAGS"
else
if test -n "$SDL_LIBS"; then
LIBS="$LIBS $SDL_LIBS"
CPPFLAGS="$CPPFLAGS $SDL_CFLAGS"
else
AC_MSG_ERROR([SDL 1.x or SDL 2.x is required to compile this program])
fi
fi
AH_TEMPLATE(C_GAMELINK,[Define to 1 to enable game link headless mode])
AC_CHECK_LIB(rt, main, have_rt_lib=yes, have_rt_lib=no , )
AC_ARG_ENABLE(gamelink,AC_HELP_STRING([--disable-gamelink],[Disable headless game link output mode (only for SDL2)]),,enable_gamelink=yes)
AC_MSG_CHECKING(whether gamelink is enabled)
if test x$enable_gamelink = xyes; then
if test "x$SDL2_LIBS" = "x"; then
AC_MSG_RESULT(no (SDL2 missing))
else
AC_MSG_RESULT(yes)
C_GAMELINK=1
AC_DEFINE(C_GAMELINK,1)
fi
else
AC_MSG_RESULT(no)
fi
AM_CONDITIONAL([C_GAMELINK], [test "x$C_GAMELINK" = x1])
dnl FEATURE: Whether to use OpenGL
AH_TEMPLATE(C_OPENGL,[Define to 1 to use opengl display output support])
AC_ARG_ENABLE(opengl,AC_HELP_STRING([--disable-opengl],[Disable opengl support]),enable_opengl=$enableval,enable_opengl=yes)
AC_MSG_CHECKING(whether opengl display output will be enabled)
# We need to do this before any other AC_CHECK_LIB runs just to make sure
# linking doesn't fail if SDL is using OpenGL
if test x$enable_opengl = xyes; then
case "$host" in
*-*-darwin*)
AC_MSG_RESULT(yes)
LIBS="$LIBS -framework OpenGL"
AC_DEFINE(C_OPENGL,1)
;;
*)
pkg-config --exists gl; RES=$?
if test x$RES = x0; then
AC_MSG_RESULT(yes)
CFLAGS="$CFLAGS "`pkg-config gl --cflags`
CPPFLAGS="$CPPFLAGS "`pkg-config gl --cflags`
LIBS="$LIBS "`pkg-config gl --libs`
AC_DEFINE(C_OPENGL,1)
elif test x$have_gl_h = xyes -a x$have_gl_lib = xyes ; then
AC_MSG_RESULT(yes)
LIBS="$LIBS -lGL"
AC_DEFINE(C_OPENGL,1)
elif test x$have_gl_h = xyes -a x$have_opengl32_lib = xyes ; then
AC_MSG_RESULT(yes)
LIBS="$LIBS -lopengl32"
AC_DEFINE(C_OPENGL,1)
else
AC_MSG_RESULT(no)
fi
;;
esac
fi
# FIXME: Arrggh we need the WHOLE PATH
pwd=`realpath $srcdir`
if [[ -z "$pwd" ]]; then pwd=`pwd`; fi
CFLAGS="$CFLAGS -I$pwd -I$pwd/vs/sdlnet/linux-host/include -I$pwd/vs/sdlnet/linux-host/include/SDL"
LDFLAGS="$LDFLAGS -L$pwd/vs/sdlnet/linux-host/lib"
CPPFLAGS="$CPPFLAGS -I$pwd -I$pwd/vs/sdlnet/linux-host/include -I$pwd/vs/sdlnet/linux-host/include/SDL"
CXXFLAGS="$CXXFLAGS -I$pwd -I$pwd/vs/sdlnet/linux-host/include -I$pwd/vs/sdlnet/linux-host/include/SDL"
if test x$enable_emscripten != xyes; then
dnl Some target detection and actions for them
case "$host" in
*-*-cygwin* | *-*-mingw32*)
LIBS="$LIBS -lwinmm -ldsound -limm32 -lole32 -loleaut32 -lversion -lsetupapi"
CXXFLAGS="$CXXFLAGS -mno-ms-bitfields"
dnl FEATURE: Whether to support direct parallel port pass-through
AC_DEFINE(C_DIRECTLPT, 1, [ Define to 1 if you want parallel pass-through support (Win32, Linux and BSD).])
dnl FEATURE: Whether to support direct serial port pass-through
AC_DEFINE(C_DIRECTSERIAL, 1, [ Define to 1 if you want serial pass-through support (Win32, Posix and OS/2).])
;;
*-*-darwin*)
dnl We have a problem here: both Mac OS X and Darwin report
dnl the same signature "powerpc-apple-darwin*" - so we have
dnl to do more to distinguish them.
dnl For now I am lazy and do not add proper detection code.
macosx=1
if test x$warn_cpp11 = x1; then
OBJCXXFLAGS="$OBJCXXFLAGS -std=gnu++14";
else
OBJCXXFLAGS="$OBJCXXFLAGS -std=gnu++11";
fi
AC_DEFINE(MACOSX, 1, [Compiling on Mac OS X])
LIBS="$LIBS -framework Carbon -framework CoreFoundation -framework CoreMIDI -framework AudioUnit -framework AudioToolbox -framework ApplicationServices -framework AppKit -framework IOKit"
dnl FEATURE: Whether to support direct serial port pass-through
AC_DEFINE(C_DIRECTSERIAL, 1, [ Define to 1 if you want serial pass-through support (Win32, Posix and OS/2).])
;;
*-*-linux*)
AC_DEFINE(LINUX, 1, [Compiling on GNU/Linux])
CXXFLAGS="$CXXFLAGS -D_XOPEN_SOURCE=700 -D_POSIX_C_SOURCE=200809L"
LIBS="$LIBS -lrt" # uses shm_* functions which requires librt on Linux
dnl FEATURE: Whether to support direct parallel port pass-through
AC_DEFINE(C_DIRECTLPT, 1, [ Define to 1 if you want parallel pass-through support (Win32, Linux and BSD).])
dnl FEATURE: Whether to support direct serial port pass-through
AC_DEFINE(C_DIRECTSERIAL, 1, [ Define to 1 if you want serial pass-through support (Win32, Posix and OS/2).])
;;
*-*-haiku*)
AC_DEFINE(HAIKU, 1, [Compiling on Haiku])
dnl FEATURE: Whether to support direct serial port pass-through
AC_DEFINE(C_DIRECTSERIAL, 1, [ Define to 1 if you want serial pass-through support (Win32, Posix and OS/2).])
LIBS="$LIBS -lnetwork -lbsd -lbe"
;;
*-*-freebsd* | *-*-dragonfly* | *-*-netbsd* | *-*-openbsd*)
dnl FEATURE: Whether to support direct parallel port pass-through
AC_DEFINE(C_DIRECTLPT, 1, [ Define to 1 if you want parallel pass-through support (Win32, Linux and BSD).])
dnl Disabled directserial for now. It doesn't do anything without
dnl specifying an extra ifdef in directserial_posix.*
dnl directserial detection should be rewritten to test for the needed
dnl functions and headers. I currently do not know
dnl which ones are needed for BSD
AC_DEFINE(BSD, 1, [Compiling on BSD])
dnl FEATURE: Whether to support direct serial port pass-through
AC_DEFINE(C_DIRECTSERIAL, 1, [ Define to 1 if you want serial pass-through support (Win32, Posix and OS/2).])
;;
*-*-os2-emx*)
AC_DEFINE(OS2, 1, [Compiling on OS/2 EMX])
dnl FEATURE: Whether to support direct serial port pass-through
AC_DEFINE(C_DIRECTSERIAL, 1, [ Define to 1 if you want serial pass-through support (Win32, Posix and OS/2).])
;;
*-*-riscos*)
AC_DEFINE(RISCOS, 1, [Compiling on RISC OS])
dnl The following line is required in order to use std::to_string()
CXXFLAGS="$CXXFLAGS -D_GLIBCXX_USE_C99=1"
;;
esac
dnl Fix for FreeBSD not automatically linking to pthread for std::thread
case "$host" in
*-*-freebsd*)
LIBS="$LIBS -lpthread"
;;
esac
dnl OpenBSD/i386 and NetBSD/i386 require linking to libi386.a for i386_iopl() (for initPassthroughIO()).
dnl OpenBSD/x86_64 requires linking to libamd64.a for amd64_iopl(). NetBSD/x86_64 requires linking to libx86_64.a for x86_64_iopl().
case "$host" in
i*86-*-openbsd* | i*86-*-netbsd*)
LIBS="$LIBS -li386"
;;
x86_64-*-openbsd*)
LIBS="$LIBS -lamd64"
;;
x86_64-*-netbsd*)
LIBS="$LIBS -lx86_64"
;;
esac
fi
AM_CONDITIONAL(MACOSX, test x"$macosx" = x"1")
AM_CONDITIONAL(EMSCRIPTEN, test x"$enable_emscripten" = x"yes")
dnl The target cpu checks for dynamic cores
AH_TEMPLATE(C_TARGETCPU,[The type of cpu this target has])
AC_MSG_CHECKING(for target cpu type)
case "$host_cpu" in
x86_64 | amd64)
AC_DEFINE(C_TARGETCPU,X86_64)
AC_MSG_RESULT(x86-64 bit compatible)
c_targetcpu="x86_64"
c_unalignedmemory=yes
;;
i?86)
AC_DEFINE(C_TARGETCPU,X86)
AC_MSG_RESULT(x86 compatible)
c_targetcpu="x86"
c_unalignedmemory=yes
;;
powerpc*)
AC_DEFINE(C_TARGETCPU,POWERPC)
AC_MSG_RESULT(Power PC)
c_targetcpu="powerpc"
c_unalignedmemory=yes
;;
m68k*)
AC_DEFINE(C_TARGETCPU,M68K)
AC_MSG_RESULT(Motorola 68000)
c_targetcpu="m68k"
c_unalignedmemory=yes
;;
loongarch64*)
AC_DEFINE(C_TARGETCPU,LOONGARCH64)
AC_MSG_RESULT(LoongArch)
c_targetcpu="loongarch64"
c_unalignedmemory=yes
;;
armv7*)
AC_DEFINE(C_TARGETCPU,ARMV7LE)
AC_MSG_RESULT(ARMv7 Little Endian)
c_targetcpu="arm"
c_unalignedmemory=yes
;;
armv6*)
AC_DEFINE(C_TARGETCPU,ARMV4LE)
AC_MSG_RESULT(ARMv6 Little Endian)
c_targetcpu="arm"
dnl c_unalignedmemory=yes
;;
aarch64)
AC_DEFINE(C_TARGETCPU,ARMV8LE)
AC_MSG_RESULT(ARMv8 Little Endian 64-bit)
c_targetcpu="arm"
c_unalignedmemory=yes
;;
arm) # Mac OS X uname -m says "arm64", for some reason it becomes "arm" ?
AC_DEFINE(C_TARGETCPU,ARMV8LE)
AC_MSG_RESULT(ARMv8 Little Endian 64-bit)
c_targetcpu="arm"
c_unalignedmemory=yes
;;
*)
AC_DEFINE(C_TARGETCPU,UNKNOWN)
AC_MSG_RESULT(unknown)
c_unalignedmemory=no
;;
esac
dnl TODO: Need GCC to know this code is using C++ lambda functions
dnl LIBRARY TEST: ALSA
AM_PATH_ALSA(0.9.0, AC_DEFINE(HAVE_ALSA,1,[Define to 1 to use ALSA for MIDI]) , : )
dnl Some stuff for the icon.
case "$host" in
*-*-cygwin* | *-*-mingw32*)
dnl MinGW puts ncurses headers in a subdir
ncursescfg=`ncursesw6-config --cflags`
CXXFLAGS="$CXXFLAGS $ncursescfg"
CPPFLAGS="$CPPFLAGS $ncursescfg"
CFLAGS="$CFLAGS $ncursescfg"
;;
*)
WINDRES=":"
;;
esac
dnl LIBRARY TEST: curses
AC_CHECK_HEADER(curses.h,have_curses_h=yes,)
AC_CHECK_LIB(curses, initscr, curses_lib=curses, , )
AC_CHECK_LIB(ncurses, initscr, curses_lib=ncurses, , )
AC_CHECK_LIB(pdcurses, initscr, curses_lib=pdcurses, , )
# Check if this system's ncurses uses a separate tinfo library
AC_CHECK_LIB(tinfo, nodelay,
if test x$curses_lib = xncurses ; then
LIBS="$LIBS -ltinfo";
fi)
dnl LIBRARY TEST: libzlib
AC_CHECK_HEADER(zlib.h,have_zlib_h=yes,)
AC_CHECK_LIB(z, inflateEnd, have_zlib_lib=yes, ,)
dnl LIBRARY TEST: libpng
AC_CHECK_HEADER(png.h,have_png_h=yes,)
AC_CHECK_LIB(png, png_get_io_ptr, have_png_lib=yes, ,-lz)
dnl LIBRARY TEST: libpcap
AC_CHECK_HEADER(pcap.h,have_pcap_h=yes,)
AC_CHECK_LIB(pcap, pcap_open_live, have_pcap_lib=yes, ,-lz)
dnl LIBRARY TEST: libslirp
AC_CHECK_HEADER(slirp/libslirp.h,have_slirp_h=yes,)
AC_CHECK_LIB(slirp, slirp_input, have_slirp_lib=yes, ,-lz)
dnl LIBRARY TEST: libiconv
AC_CHECK_HEADER(iconv.h,have_iconv_h=yes,)
dnl TEST: check if iconv uses const char
AC_MSG_CHECKING([whether iconv uses const char**])
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#include <iconv.h>
size_t iconv(iconv_t, const char **restrict, size_t *restrict, char **restrict, size_t *restrict);
])], AC_DEFINE(ICONV_CONST_CHAR, 1) AC_MSG_RESULT(yes), AC_MSG_RESULT(no))
AH_TEMPLATE(ICONV_CONST_CHAR,[Whether iconv uses const char**])
dnl LIBRARY TEST: SDLnet
AC_CHECK_HEADER(SDL_net.h,have_sdl_net_h=yes,)
AC_CHECK_LIB(SDL2_net, SDLNet_Init, have_sdl2_net_lib=yes, , )
AC_CHECK_LIB(SDL_net, SDLNet_Init, have_sdl_net_lib=yes, , )
AC_COMPILE_IFELSE([AC_LANG_SOURCE([
#include <SDL_config.h>
#ifndef SDL_VIDEO_DRIVER_X11
#error SDL_VIDEO_DRIVER_X11
#endif
void test(){}
])], , enable_x11=no)
if test x$enable_x11 != xno; then
dnl LIBRARY TEST: X11 Xlib support
AC_CHECK_LIB(X11, main, have_x11_lib=yes, have_x11_lib=no, )
AC_CHECK_LIB(Xrandr, XRRGetCrtcInfo, have_xrandr_lib=yes, have_xrandr_lib=no, )
AC_CHECK_HEADER(X11/XKBlib.h, have_x11_h=yes, have_x11_h=no, )
dnl Compile test will fail for XKBrules.h if we do not also include XKBlib.h
dnl Hope your compiler supports the GCC style -include option!
if test x$have_x11_h = xyes; then
save_CPPFLAGS=$CPPFLAGS
CPPFLAGS="$CPPFLAGS -include X11/XKBlib.h"
AC_CHECK_HEADER(X11/extensions/XKBrules.h, have_x11_ext_xkbrules_h=yes, have_x11_ext_xkbrules_h=no, )
AC_CHECK_HEADER(X11/extensions/XKBfile.h, have_xkbfile_h=yes, have_xkbfile_h=no, )
CPPFLAGS=$save_CPPFLAGS
fi
fi
dnl LIBRARY TEST: Fluidsynth support
AC_CHECK_HEADER(fluidsynth.h,have_fluidsynth_h=yes,)
AC_CHECK_LIB(fluidsynth, fluid_synth_sysex, have_fluidsynth_lib=yes,,)
dnl LIBRARY TEST: FreeType2
AH_TEMPLATE(C_FREETYPE,[Define to 1 to enable freetype support])
AC_ARG_ENABLE(freetype,AC_HELP_STRING([--disable-freetype],[Disable freetype support]),enable_freetype=$enableval,enable_freetype=yes)
AM_CONDITIONAL(C_FREETYPE, test "x$enable_freetype" = "xyes")
if test x$enable_freetype = xyes; then
AC_MSG_CHECKING(for freetype)
if test x$INTERNAL_FREETYPE = x1; then
# CFLAGS and LDFLAGS were already updated by build-macos
AC_DEFINE(C_FREETYPE,1)
AC_MSG_RESULT(yes)
else
pkg-config --exists freetype2; RES=$?
if test x$RES = x0; then
CFLAGS="$CFLAGS "`pkg-config freetype2 --cflags`
CPPFLAGS="$CPPFLAGS "`pkg-config freetype2 --cflags`
LIBS="$LIBS "`pkg-config freetype2 --libs`
AC_DEFINE(C_FREETYPE,1)
AC_MSG_RESULT(yes)
else
enable_freetype=no
AC_MSG_RESULT(no)
fi
fi
fi
dnl LIBRARY TEST: FFMPEG support
pkg-config --exists libavcodec; RES=$?
if test x$RES = x0; then
have_avcodec_h=yes
have_ffmpeg=yes
else
have_avcodec_h=no
have_ffmpeg=no
fi
dnl LIBRARY TEST: OpenGL support
AC_CHECK_LIB(GL, main, have_gl_lib=yes, have_gl_lib=no , )
AC_CHECK_LIB(opengl32, main, have_opengl32_lib=yes,have_opengl32_lib=no , )
AC_CHECK_HEADER(GL/gl.h, have_gl_h=yes , have_gl_h=no , )
dnl LIBRARY TEST: Direct3D 9 header support
AC_CHECK_HEADER(d3d9.h, have_d3d9_h=yes , have_d3d9_h=no , )
AC_CHECK_HEADER(d3dx9math.h, have_d3dx9math_h=yes , have_d3dx9math_h=no , )
dnl ================== SDL net special test for OS/2
if test x$host = xi386-pc-os2-emx ; then
LIBS_BACKUP=$LIBS;
LIBS="$LIBS -lSDL_Net";
AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <SDL_Net.h>]],[[
SDLNet_Init ();
]])], [AC_MSG_RESULT(yes); have_sdl_net_lib=yes], AC_MSG_RESULT(no))
LIBS=$LIBS_BACKUP
fi
dnl FEATURE: PRINTER (requires FreeType2)
AH_TEMPLATE(C_PRINTER,[Define to 1 to enable printer emulation])
AC_ARG_ENABLE(printer,AC_HELP_STRING([--disable-printer],[disable printer emulation]),enable_printer=$enableval,enable_printer=yes)
AM_CONDITIONAL(C_PRINTER, test "x$enable_printer" = "xyes")
if test x$enable_freetype = xyes; then
if test x$enable_printer = xyes; then
AC_DEFINE(C_PRINTER,1)
fi
fi
dnl FEATURE: xBRZ
AH_TEMPLATE(C_XBRZ,[Define to 1 to enable XBRZ scaler])
AC_ARG_ENABLE(xbrz,AC_HELP_STRING([--enable-xbrz],[compile with xBRZ scaler (default yes)]),enable_xbrz=$enableval,enable_xbrz=yes)
AM_CONDITIONAL(C_XBRZ, test "x$enable_xbrz" = "xyes")
if test x$enable_emscripten != xyes; then
if test x$enable_xbrz = xyes; then
AC_DEFINE(C_XBRZ,1)
fi
fi
dnl FEATURE: xBRZ
AH_TEMPLATE(C_SCALER_FULL_LINE,[Define to 1 to alter the simpler render scalers to operate only on the full scanline instead of detecting differences. This is a performance adjustment for slow or embedded systems])
AC_ARG_ENABLE(scaler-full-line,AC_HELP_STRING([--enable-scaler-full-line],[scaler render full line instead of detecting changes, for slower systems]),enable_scaler_full_line=$enableval,enable_scaler_full_line=no)
AM_CONDITIONAL(C_SCALER_FULL_LINE, test "x$enable_scaler_full_line" = "xyes")
if test x$enable_scaler_full_line = xyes; then
AC_DEFINE(C_SCALER_FULL_LINE,1)
fi
dnl FEATURE: MIDI through ALSA
AC_ARG_ENABLE(alsa-midi,
AC_HELP_STRING([--enable-alsa-midi],[compile with alsa midi support (default yes)]),
[ case "${enableval}" in
yes) alsa_midi=true;;
no) alsa_midi=false;;
esac],
[alsa_midi=true])
if test x$alsa_midi = xtrue ; then
CXXFLAGS="$CXXFLAGS $ALSA_CFLAGS"
fi
dnl FEATURE: MT32 (MUNT) emulation
AH_TEMPLATE(C_MT32,[Define to 1 to enable MT32 emulation])
AC_ARG_ENABLE(mt32,AC_HELP_STRING([--disable-mt32],[Disable MT32 emulation]),,enable_mt32=yes)
AC_MSG_CHECKING(whether MT32 emulation will be enabled)
# test
if test x$enable_mt32 = xyes ; then
case "$host_cpu" in
x86_64 | amd64)
AC_MSG_RESULT(yes)
AC_DEFINE(C_MT32,1)
;;
i?86)
AC_MSG_RESULT(yes)
AC_DEFINE(C_MT32,1)
;;
arm)
AC_MSG_RESULT(yes)
AC_DEFINE(C_MT32,1)
;;
aarch64)
AC_MSG_RESULT(yes)
AC_DEFINE(C_MT32,1)
;;
loongarch64)
AC_MSG_RESULT(yes)
AC_DEFINE(C_MT32,1)
;;
*)
enable_mt32=no
AC_MSG_RESULT(no)
;;
esac
else
enable_mt32=no
AC_MSG_RESULT(no)
fi
AM_CONDITIONAL(C_MT32, test "x$enable_mt32" = "xyes")
dnl On some Linux platforms, std::atomic needs a helper library
case "$host" in
*-*-linux*)
case "$host_cpu" in
x86_64 | amd64)
;;
i?86)
;;
*)
AC_MSG_CHECKING(whether -latomic is needed)
AC_LINK_IFELSE([AC_LANG_SOURCE([
#include <atomic>
#include <cstdint>
std::atomic<std::int64_t> v;
int main() {
return v;
}
])],STD_ATOMIC_NEED_LIBATOMIC=no,STD_ATOMIC_NEED_LIBATOMIC=yes)
AC_MSG_RESULT($STD_ATOMIC_NEED_LIBATOMIC)
if test "x$STD_ATOMIC_NEED_LIBATOMIC" = xyes; then
LIBS="$LIBS -latomic"
fi
;;
esac
;;
esac
dnl NASM (Netwide Assembler)
AC_PATH_PROG([NASM], [nasm])
if test -z "$ac_cv_path_NASM"; then
AC_MSG_WARN([NASM (netwide assembler) not found, you will not be able to compile the external x86 .asm files if they are modified])
fi
dnl FEATURE: DEBUG and HEAVY DEBUG options (debugger)
AH_TEMPLATE(C_DEBUG,[Define to 1 to enable internal debugger, requires libcurses])
AH_TEMPLATE(C_HEAVY_DEBUG,[Define to 1 to enable heavy debugging, also have to enable C_DEBUG])
AC_ARG_ENABLE(debug,AC_HELP_STRING([--enable-debug],[Enable debug mode]),[
if test x$enable_debug = xno; then
AC_MSG_RESULT([Debugger not enabled])
elif test x$curses_lib != x -a x$have_curses_h = xyes; then
LIBS="$LIBS -l$curses_lib"
AC_DEFINE(C_DEBUG,1)
if test x$enable_debug = xheavy ; then
AC_DEFINE(C_HEAVY_DEBUG,1)
fi
else
AC_MSG_ERROR([Can't find curses, which is required for debug mode])
fi
],)
dnl automake 1.14 and upwards rewrite the host to have always 64 bit unless i386 as host is passed
dnl this can make building a 32 bit executable a bit tricky, as dosbox relies on the host to select the
dnl dynamic/dynrec core
AC_MSG_CHECKING([whether Apple user wants to override the build process to produce a 32 bit binary])
case "$host" in
*-*-darwin*)
if test x$c_targetcpu = xx86_64 -a x$c_sizep = x4 ; then
AC_MSG_RESULT(yes)
AC_DEFINE(C_TARGETCPU,X86)
c_targetcpu="x86"
else
AC_MSG_RESULT(no)
fi
;;
*)
AC_MSG_RESULT([no, not on Apple])
;;
esac
dnl FEATURE: Whether to enable dynamic core
AC_ARG_ENABLE(dynamic-core,AC_HELP_STRING([--disable-dynamic-core],[Disable all dynamic cores]),,enable_dynamic_core=yes)
dnl FEATURE: Whether to enable x86 dynamic core
AH_TEMPLATE(C_DYNAMIC_X86,[Define to 1 to use x86/x64 dynamic cpu core])
AC_ARG_ENABLE(dynamic-x86,AC_HELP_STRING([--disable-dynamic-x86],[Disable x86/x64 dynamic cpu core]),,enable_dynamic_x86=yes)
AC_MSG_CHECKING(whether x86 dynamic cpu core will be enabled)
if test x$enable_dynamic_x86 = xno -o x$enable_dynamic_core = xno; then
AC_MSG_RESULT(no)
elif test x$c_targetcpu = xx86 -o x$c_targetcpu = xx86_64; then
AC_DEFINE(C_DYNAMIC_X86,1)
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
fi
dnl FEATURE: Whether to enable recompiling dynamic core
AH_TEMPLATE(C_DYNREC,[Define to 1 to use recompiling cpu core])
AC_ARG_ENABLE(dynrec,AC_HELP_STRING([--disable-dynrec],[Disable recompiling cpu core]),,enable_dynrec=yes)
AC_MSG_CHECKING(whether recompiling cpu core will be enabled)
if test x$enable_dynrec = xno -o x$enable_dynamic_core = xno; then
AC_MSG_RESULT(no)
# test for MIPS32 is missing from this Dynamic Recompiler whitelist
elif test x$c_targetcpu = xx86 -o x$c_targetcpu = xx86_64 -o x$c_targetcpu = xarm; then
AC_DEFINE(C_DYNREC,1)
AC_MSG_RESULT(yes)
case "$host" in
*-*-openbsd*)
AC_MSG_WARN([DOSBox-X will be linked with "wxneeded" to support dynrec core on OpenBSD])
LDFLAGS="-Wl,-z,wxneeded $LDFLAGS"
;;
esac
else
AC_MSG_RESULT(no)