aboutsummaryrefslogtreecommitdiffstats
path: root/configure.ac
blob: 0e69096541eabe641ec4f927e8c2bc1e66403d59 (plain) (blame)
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
#                                               -*- Autoconf -*-
# Process this file with autoconf to produce a configure script.

# ----------------------------------------------------------------------
# Autoconf initialization.
# ----------------------------------------------------------------------

AC_PREREQ([2.69])
AC_INIT([htop], [3.1.2], [htop@groups.io], [], [https://htop.dev/])

AC_CONFIG_SRCDIR([htop.c])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_HEADERS([config.h])

AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE([-Wall std-options subdir-objects])

# ----------------------------------------------------------------------


# ----------------------------------------------------------------------
# Checks for platform.
# ----------------------------------------------------------------------

case "$target_os" in
linux*|gnu*)
   my_htop_platform=linux
   AC_DEFINE([HTOP_LINUX], [], [Building for Linux.])
   ;;
freebsd*|kfreebsd*)
   my_htop_platform=freebsd
   AC_DEFINE([HTOP_FREEBSD], [], [Building for FreeBSD.])
   ;;
netbsd*)
   my_htop_platform=netbsd
   AC_DEFINE([HTOP_NETBSD], [], [Building for NetBSD.])
   ;;
openbsd*)
   my_htop_platform=openbsd
   AC_DEFINE([HTOP_OPENBSD], [], [Building for OpenBSD.])
   ;;
dragonfly*)
   my_htop_platform=dragonflybsd
   AC_DEFINE([HTOP_DRAGONFLYBSD], [], [Building for DragonFlyBSD.])
   ;;
darwin*)
   my_htop_platform=darwin
   AC_DEFINE([HTOP_DARWIN], [], [Building for Darwin.])
   ;;
solaris*)
   my_htop_platform=solaris
   AC_DEFINE([HTOP_SOLARIS], [], [Building for Solaris.])
   ;;
*)
   my_htop_platform=unsupported
   AC_DEFINE([HTOP_UNSUPPORTED], [], [Building for an unsupported platform.])
   ;;
esac

# Enable extensions, required by hwloc scripts
AC_USE_SYSTEM_EXTENSIONS

# ----------------------------------------------------------------------


# ----------------------------------------------------------------------
# Checks for compiler.
# ----------------------------------------------------------------------

AC_PROG_CC
AM_PROG_CC_C_O
m4_version_prereq([2.70], [], [AC_PROG_CC_C99])
AS_IF([test "x$ac_cv_prog_cc_c99" = xno], [AC_MSG_ERROR([htop is written in C99. A newer compiler is required.])])

# ----------------------------------------------------------------------


# ----------------------------------------------------------------------
# Checks for static build.
# ----------------------------------------------------------------------

AC_ARG_ENABLE([static],
              [AS_HELP_STRING([--enable-static],
                              [build a static htop binary @<:@default=no@:>@])],
              [],
              [enable_static=no])
case "$enable_static" in
   no)
      ;;
   yes)
      AC_DEFINE([BUILD_STATIC], [1], [Define if building static binary.])
      CFLAGS="$CFLAGS -static"
      LDFLAGS="$LDFLAGS -static"
      ;;
   *)
      AC_MSG_ERROR([bad value '$enable_static' for --enable-static option])
      ;;
esac

# ----------------------------------------------------------------------

# ----------------------------------------------------------------------
# Checks for a PCP-based htop build.  (https://pcp.io)
# ----------------------------------------------------------------------

AC_ARG_ENABLE([pcp],
              [AS_HELP_STRING([--enable-pcp],
                              [build a pcp-htop binary @<:@default=no@:>@])],
              [],
              [enable_pcp=no])
case "$enable_pcp" in
   no)
      ;;
   yes)
      AC_CHECK_HEADERS([pcp/pmapi.h], [my_htop_platform=pcp],
                       [AC_MSG_ERROR([can not find PCP header file])])
      AC_SEARCH_LIBS([pmNewContext], [pcp], [], [AC_MSG_ERROR([can not find PCP library])])
      AC_DEFINE([HTOP_PCP], [1], [Define if building pcp-htop binary.])
      AC_CONFIG_FILES([pcp-htop.5])
      ;;
   *)
      AC_MSG_ERROR([bad value '$enable_pcp' for --enable-pcp option])
      ;;
esac

# ----------------------------------------------------------------------


# ----------------------------------------------------------------------
# Checks for generic header files.
# ----------------------------------------------------------------------

AC_HEADER_DIRENT
m4_version_prereq([2.70], [AC_CHECK_INCLUDES_DEFAULT], [AC_HEADER_STDC])
AC_CHECK_HEADERS([ \
    stdlib.h \
    string.h \
    strings.h \
    sys/param.h \
    sys/time.h \
    sys/utsname.h \
    unistd.h
   ], [], [AC_MSG_ERROR([can not find required generic header files])])

AC_HEADER_MAJOR
dnl glibc 2.25 deprecates 'major' and 'minor' in <sys/types.h> and requires to
dnl include <sys/sysmacros.h>. However the logic in AC_HEADER_MAJOR has not yet
dnl been updated in Autoconf 2.69, so use a workaround:
m4_version_prereq([2.70], [],
[if test "x$ac_cv_header_sys_mkdev_h" != xyes; then
   AC_CHECK_HEADER([sys/sysmacros.h], [AC_DEFINE([MAJOR_IN_SYSMACROS], [1],
      [Define to 1 if `major', `minor', and `makedev' are declared in <sys/sysmacros.h>.])])
fi])

# Optional Section

AC_CHECK_HEADERS([execinfo.h])

if test "$my_htop_platform" = darwin; then
   AC_CHECK_HEADERS([mach/mach_time.h])
fi

# ----------------------------------------------------------------------


# ----------------------------------------------------------------------
# Checks for typedefs, structures, and compiler characteristics.
# ----------------------------------------------------------------------

AC_TYPE_PID_T
AC_TYPE_UID_T
AC_TYPE_UINT8_T
AC_TYPE_UINT16_T
AC_TYPE_UINT32_T
AC_TYPE_UINT64_T

AC_MSG_CHECKING(for alloc_size)
old_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wno-error -Werror=attributes"
AC_COMPILE_IFELSE([
   AC_LANG_SOURCE(
      [
         __attribute__((alloc_size(1))) char* my_alloc(int size) { return 0; }
      ],[]
   )],
   AC_DEFINE([HAVE_ATTR_ALLOC_SIZE], 1, [The alloc_size attribute is supported.])
   AC_MSG_RESULT(yes),
   AC_MSG_RESULT(no))
CFLAGS="$old_CFLAGS"

AC_MSG_CHECKING(for NaN support)
AC_RUN_IFELSE([
   AC_LANG_PROGRAM(
      [[
       #include <math.h>
      ]],
      [[
       double x = NAN; return !isnan(x);
      ]]
   )],
   [AC_MSG_RESULT(yes)],
   [
      AC_MSG_RESULT(no)
      AC_MSG_WARN([Compiler does not respect NaN, some functionality might break; consider using '-fno-finite-math-only'])
   ],
   [AC_MSG_RESULT(skipped)])

# ----------------------------------------------------------------------


# ----------------------------------------------------------------------
# Checks for generic library functions.
# ----------------------------------------------------------------------

AC_CHECK_LIB([m], [ceil], [], [AC_MSG_ERROR([can not find required function ceil()])])

if test "$my_htop_platform" = dragonflybsd; then
   AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])])
fi

if test "$my_htop_platform" = freebsd; then
   if test "$enable_static" = yes; then
      AC_SEARCH_LIBS([elf_version], [elf], [], [AC_MSG_ERROR([can not find required function elf_version()])])
   fi
   AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])])
   AC_SEARCH_LIBS([devstat_checkversion], [devstat], [], [AC_MSG_ERROR([can not find required function devstat_checkversion()])])
fi

if test "$my_htop_platform" = linux; then
   if test "$enable_static" != yes; then
      AC_SEARCH_LIBS([dlopen], [dl dld], [], [AC_MSG_ERROR([can not find required function dlopen()])])
   fi
fi

if test "$my_htop_platform" = netbsd; then
   AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])])
   AC_SEARCH_LIBS([prop_dictionary_get], [prop], [], [AC_MSG_ERROR([can not find required function prop_dictionary_get()])])
fi

if test "$my_htop_platform" = openbsd; then
   AC_SEARCH_LIBS([kvm_open], [kvm], [], [AC_MSG_ERROR([can not find required function kvm_open()])])
fi

if test "$my_htop_platform" = solaris; then
   AC_SEARCH_LIBS([kstat_open], [kstat], [], [AC_MSG_ERROR([can not find required function kstat_open()])])
   AC_SEARCH_LIBS([Pgrab_error], [proc], [], [AC_MSG_ERROR([can not find required function Pgrab_error()])])
   AC_SEARCH_LIBS([free], [malloc], [], [AC_MSG_ERROR([can not find required function free()])])
fi

# Optional Section

AC_SEARCH_LIBS([clock_gettime], [rt])

AC_CHECK_FUNCS([ \
    clock_gettime \
    dladdr \
    faccessat \
    fstatat \
    host_get_clock_service \
    memfd_create\
    openat \
    readlinkat \
   ])

if test "$my_htop_platform" = darwin; then
   AC_CHECK_FUNCS([mach_timebase_info])
fi

if test "$my_htop_platform" = linux && test "x$enable_static" = xyes; then
   AC_CHECK_LIB([systemd], [sd_bus_open_system])
fi

# ----------------------------------------------------------------------


# ----------------------------------------------------------------------
# Checks for cross-platform features and flags.
# ----------------------------------------------------------------------

# HTOP_CHECK_SCRIPT(LIBNAME, FUNCTION, DEFINE, CONFIG_SCRIPT, ELSE_PART)
m4_define([HTOP_CHECK_SCRIPT],
[
   if test ! -z "m4_toupper($HTOP_[$1]_CONFIG_SCRIPT)"; then
      # to be used to set the path to ncurses*-config when cross-compiling
      htop_config_script_libs=$(m4_toupper($HTOP_[$1]_CONFIG_SCRIPT) --libs 2> /dev/null)
      htop_config_script_cflags=$(m4_toupper($HTOP_[$1]_CONFIG_SCRIPT) --cflags 2> /dev/null)
   else
      htop_config_script_libs=$([$4] --libs 2> /dev/null)
      htop_config_script_cflags=$([$4] --cflags 2> /dev/null)
   fi
   htop_script_success=no
   htop_save_CFLAGS="$CFLAGS"
   if test ! "x$htop_config_script_libs" = x; then
      CFLAGS="$htop_config_script_cflags $CFLAGS"
      AC_CHECK_LIB([$1], [$2], [
         AC_DEFINE([$3], 1, [The library is present.])
         LIBS="$htop_config_script_libs $LIBS "
         htop_script_success=yes
      ], [
         CFLAGS="$htop_save_CFLAGS"
      ], [
         $htop_config_script_libs
      ])
   fi
   if test "x$htop_script_success" = xno; then
      [$5]
   fi
])

# HTOP_CHECK_LIB(LIBNAME, FUNCTION, DEFINE, ELSE_PART)
m4_define([HTOP_CHECK_LIB],
[
   AC_CHECK_LIB([$1], [$2], [
      AC_DEFINE([$3], [1], [The library is present.])
      LIBS="-l[$1] $LIBS "
   ], [$4])
])

AC_ARG_ENABLE([unicode],
              [AS_HELP_STRING([--enable-unicode],
                              [enable Unicode support @<:@default=yes@:>@])],
              [],
              [enable_unicode=yes])
if test "x$enable_unicode" = xyes; then
   HTOP_CHECK_SCRIPT([ncursesw6], [waddwstr], [HAVE_LIBNCURSESW], "ncursesw6-config",
    HTOP_CHECK_SCRIPT([ncursesw], [waddwstr], [HAVE_LIBNCURSESW], "ncursesw6-config",
     HTOP_CHECK_SCRIPT([ncursesw], [wadd_wch], [HAVE_LIBNCURSESW], "ncursesw5-config",
      HTOP_CHECK_SCRIPT([ncurses], [wadd_wch], [HAVE_LIBNCURSESW], "ncurses5-config",
       HTOP_CHECK_LIB([ncursesw6], [addnwstr], [HAVE_LIBNCURSESW],
        HTOP_CHECK_LIB([ncursesw], [addnwstr], [HAVE_LIBNCURSESW],
         HTOP_CHECK_LIB([ncurses], [addnwstr], [HAVE_LIBNCURSESW],
          AC_MSG_ERROR([can not find required library libncursesw; you may want to use --disable-unicode])
   )))))))

   AC_CHECK_HEADERS([ncursesw/curses.h], [],
      [AC_CHECK_HEADERS([ncurses/ncurses.h], [],
         [AC_CHECK_HEADERS([ncurses/curses.h], [],
            [AC_CHECK_HEADERS([ncurses.h], [],
               [AC_MSG_ERROR([can not find required ncurses header file])])])])])

   # check if additional linker flags are needed for keypad(3)
   # (at this point we already link against a working ncurses library with wide character support)
   AC_SEARCH_LIBS([keypad], [tinfow tinfo])
else
   HTOP_CHECK_SCRIPT([ncurses6], [wnoutrefresh], [HAVE_LIBNCURSES], [ncurses6-config],
    HTOP_CHECK_SCRIPT([ncurses], [wnoutrefresh], [HAVE_LIBNCURSES], [ncurses5-config],
     HTOP_CHECK_LIB([ncurses6],  [doupdate], [HAVE_LIBNCURSES],
      HTOP_CHECK_LIB([ncurses],  [doupdate], [HAVE_LIBNCURSES],
       HTOP_CHECK_LIB([curses],  [doupdate], [HAVE_LIBNCURSES],
        AC_MSG_ERROR([can not find required curses/ncurses library])
   )))))

   AC_CHECK_HEADERS([curses.h], [],
      [AC_CHECK_HEADERS([ncurses/curses.h], [],
         [AC_CHECK_HEADERS([ncurses/ncurses.h], [],
            [AC_CHECK_HEADERS([ncurses.h] ,[],
               [AC_MSG_ERROR([can not find required ncurses header file])])])])])

   # check if additional linker flags are needed for keypad(3)
   # (at this point we already link against a working ncurses library)
   AC_SEARCH_LIBS([keypad], [tinfo])
fi
if test "$enable_static" = yes; then
   AC_SEARCH_LIBS([Gpm_GetEvent], [gpm])
fi
if test "$my_htop_platform" = "solaris"; then
   # On OmniOS /usr/include/sys/regset.h redefines ERR to 13 - \r, breaking the Enter key.
   # Since ncurses macros use the ERR macro, we can not use another name.
   AC_DEFINE([ERR], [(-1)], [Predefine ncurses macro.])
fi
AC_CHECK_FUNCS( [set_escdelay] )
AC_CHECK_FUNCS( [getmouse] )


AC_ARG_ENABLE([affinity],
              [AS_HELP_STRING([--enable-affinity],
                              [enable sched_setaffinity and sched_getaffinity for affinity support, conflicts with hwloc @<:@default=check@:>@])],
              [],
              [enable_affinity=check])
if test "x$enable_affinity" = xcheck; then
   if test "x$enable_hwloc" = xyes; then
      enable_affinity=no
   else
      AC_MSG_CHECKING([for usable sched_setaffinity])
      AC_RUN_IFELSE([
         AC_LANG_PROGRAM([[
            #include <sched.h>
            #include <errno.h>
            static cpu_set_t cpuset;
         ]], [[
            CPU_ZERO(&cpuset);
            sched_setaffinity(0, sizeof(cpu_set_t), &cpuset);
            if (errno == ENOSYS) return 1;
         ]])],
      [enable_affinity=yes
         AC_MSG_RESULT([yes])],
      [enable_affinity=no
         AC_MSG_RESULT([no])],
      [AC_MSG_RESULT([yes (assumed while cross compiling)])])
   fi
fi
if test "x$enable_affinity" = xyes; then
   if test "x$enable_hwloc" = xyes; then
      AC_MSG_ERROR([--enable-hwloc and --enable-affinity are mutual exclusive. Specify at most one of them.])
   fi
   AC_DEFINE([HAVE_AFFINITY], [1], [Define if sched_setaffinity and sched_getaffinity are to be used.])
fi


AC_ARG_ENABLE([unwind],
              [AS_HELP_STRING([--enable-unwind],
              [enable unwind support for printing backtraces; requires libunwind @<:@default=check@:>@])],
              [],
              [enable_unwind=check])
case "$enable_unwind" in
   check)
      enable_unwind=yes
      if test "$enable_static" = yes; then
         AC_CHECK_LIB([lzma], [lzma_index_buffer_decode])
      fi
      AC_CHECK_LIB([unwind], [backtrace], [], [enable_unwind=no])
      AC_CHECK_HEADERS([libunwind.h], [], [enable_unwind=no])
      ;;
   no)
      ;;
   yes)
      AC_CHECK_LIB([unwind], [backtrace], [], [AC_MSG_ERROR([can not find required library libunwind])])
      AC_CHECK_HEADERS([libunwind.h], [], [AC_MSG_ERROR([can not find require header file libunwind.h])])
      ;;
   *)
      AC_MSG_ERROR([bad value '$enable_unwind' for --enable-unwind])
      ;;
esac
if test "x$enable_unwind" = xno; then
   # Fall back to backtrace(3) and add -lexecinfo if needed
   AC_SEARCH_LIBS([backtrace], [execinfo])
fi


AC_ARG_ENABLE([hwloc],
              [AS_HELP_STRING([--enable-hwloc],
              [enable hwloc support for CPU affinity; disables affinity support; requires libhwloc @<:@default=no@:>@])],
              [],
              [enable_hwloc=no])
case "$enable_hwloc" in
   no)
      ;;
   yes)
      AC_CHECK_LIB([hwloc], [hwloc_get_proc_cpubind], [], [AC_MSG_ERROR([can not find required library libhwloc])])
      AC_CHECK_HEADERS([hwloc.h], [], [AC_MSG_ERROR([can not find require header file hwloc.h])])
      ;;
   *)
      AC_MSG_ERROR([bad value '$enable_hwloc' for --enable-hwloc])
      ;;
esac


AC_ARG_WITH([os-release],
            [AS_HELP_STRING([--with-os-release=FILE],
                            [location of an os-release file @<:@default=/etc/os-release@:>@])],
            [],
            [with_os_release=/etc/os-release])
if test -n "$with_os_release" && test ! -f "$with_os_release"; then
   if test -f "/usr/lib/os-release"; then
      with_os_release="/usr/lib/os-release"
   fi
fi
AC_DEFINE_UNQUOTED([OSRELEASEFILE], ["$with_os_release"], [File with OS release details.])

# ----------------------------------------------------------------------


# ----------------------------------------------------------------------
# Checks for Linux features and flags.
# ----------------------------------------------------------------------

AC_ARG_WITH([proc],
            [AS_HELP_STRING([--with-proc=DIR],
                            [location of a Linux-compatible proc filesystem @<:@default=/proc@:>@])],
            [],
            [with_proc=/proc])
if test -z "$with_proc"; then
   AC_MSG_ERROR([bad empty value for --with-proc option])
fi
AC_DEFINE_UNQUOTED([PROCDIR], ["$with_proc"], [Path of proc filesystem.])


AC_ARG_ENABLE([openvz],
              [AS_HELP_STRING([--enable-openvz],
                              [enable OpenVZ support @<:@default=no@:>@])],
              [],
              [enable_openvz=no])
if test "x$enable_openvz" = xyes; then
   AC_DEFINE([HAVE_OPENVZ], [1], [Define if openvz support enabled.])
fi


AC_ARG_ENABLE([vserver],
              [AS_HELP_STRING([--enable-vserver],
                              [enable VServer support @<:@default=no@:>@])],
              [],
              [enable_vserver=no])
if test "x$enable_vserver" = xyes; then
   AC_DEFINE([HAVE_VSERVER], [1], [Define if VServer support enabled.])
fi


AC_ARG_ENABLE([ancient_vserver],
              [AS_HELP_STRING([--enable-ancient-vserver],
                              [enable ancient VServer support (implies --enable-vserver) @<:@default=no@:>@])],
              [],
              [enable_ancient_vserver=no])
if test "x$enable_ancient_vserver" = xyes; then
   if test "x$enable_vserver" != xyes; then
      enable_vserver=implied
   fi
   AC_DEFINE([HAVE_VSERVER], [1], [Define if VServer support enabled.])
   AC_DEFINE([HAVE_ANCIENT_VSERVER], [1], [Define if ancient vserver support enabled.])
fi


AC_ARG_ENABLE([capabilities],
              [AS_HELP_STRING([--enable-capabilities],
                              [enable Linux capabilities support; requires libcap @<:@default=check@:>@])],
              [],
              [enable_capabilities=check])
case "$enable_capabilities" in
   no)
      ;;
   check)
      enable_capabilities=yes
      AC_CHECK_LIB([cap], [cap_init], [], [enable_capabilities=no])
      AC_CHECK_HEADERS([sys/capability.h], [], [enable_capabilities=no])
      ;;
   yes)
      AC_CHECK_LIB([cap], [cap_init], [], [AC_MSG_ERROR([can not find required library libcap])])
      AC_CHECK_HEADERS([sys/capability.h], [], [AC_MSG_ERROR([can not find required header file sys/capability.h])])
      ;;
   *)
      AC_MSG_ERROR([bad value '$enable_capabilities' for --enable-capabilities])
      ;;
esac


AC_ARG_ENABLE([delayacct],
              [AS_HELP_STRING([--enable-delayacct],
                              [enable Linux delay accounting support; requires pkg-config, libnl-3 and libnl-genl-3 @<:@default=check@:>@])],
              [],
              [enable_delayacct=check])
case "$enable_delayacct" in
   no)
      ;;
   check)
      if test "$my_htop_platform" != linux; then
         enable_delayacct=no
      elif test "$enable_static" = yes; then
         enable_delayacct=no
      else
         m4_ifdef([PKG_PROG_PKG_CONFIG], [
            enable_delayacct=yes
            PKG_PROG_PKG_CONFIG()
            PKG_CHECK_MODULES(LIBNL3, libnl-3.0, [], [enable_delayacct=no])
            PKG_CHECK_MODULES(LIBNL3GENL, libnl-genl-3.0, [], [enable_delayacct=no])
            if test "$enable_delayacct" = yes; then
               CFLAGS="$CFLAGS $LIBNL3_CFLAGS $LIBNL3GENL_CFLAGS"
               LIBS="$LIBS $LIBNL3_LIBS $LIBNL3GENL_LIBS"
               AC_DEFINE([HAVE_DELAYACCT], [1], [Define if delay accounting support should be enabled.])
            fi
         ], [
            enable_delayacct=no
            AC_MSG_NOTICE([Linux delay accounting support can not be enabled, cause pkg-config is required for checking its availability])
         ])
      fi
      ;;
   yes)
      m4_ifdef([PKG_PROG_PKG_CONFIG], [
         PKG_PROG_PKG_CONFIG()
         PKG_CHECK_MODULES(LIBNL3, libnl-3.0, [], [AC_MSG_ERROR([can not find required library libnl3])])
         PKG_CHECK_MODULES(LIBNL3GENL, libnl-genl-3.0, [], [AC_MSG_ERROR([can not find required library libnl3genl])])
         CFLAGS="$CFLAGS $LIBNL3_CFLAGS $LIBNL3GENL_CFLAGS"
         LIBS="$LIBS $LIBNL3_LIBS $LIBNL3GENL_LIBS"
         AC_DEFINE([HAVE_DELAYACCT], [1], [Define if delay accounting support should be enabled.])
      ], [
         pkg_m4_absent=1
         m4_warning([configure is generated without pkg.m4. 'make dist' target will be disabled.])
         AC_MSG_ERROR([htop on Linux requires pkg-config for checking delayacct requirements. Please install pkg-config and run ./autogen.sh to rebuild the configure script.])
      ])
      ;;
   *)
      AC_MSG_ERROR([bad value '$enable_delayacct' for --enable-delayacct])
      ;;
esac


AC_ARG_ENABLE([sensors],
              [AS_HELP_STRING([--enable-sensors],
                              [enable libsensors support for reading temperature data; requires only libsensors headers at compile time, at runtime libsensors is loaded via dlopen @<:@default=check@:>@])],
              [],
              [enable_sensors=check])
case "$enable_sensors" in
   no)
      ;;
   check)
      enable_sensors=yes
      if test "$enable_static" = yes; then
         AC_CHECK_LIB([sensors], [sensors_init], [], [enable_sensors=no])
      fi
      AC_CHECK_HEADERS([sensors/sensors.h], [], [enable_sensors=no])
      ;;
   yes)
      if test "$enable_static" = yes; then
         AC_CHECK_LIB([sensors], [sensors_init], [], [AC_MSG_ERROR([can not find required library libsensors])])
      fi
      AC_CHECK_HEADERS([sensors/sensors.h], [], [AC_MSG_ERROR([can not find required header file sensors/sensors.h])])
      ;;
   *)
      AC_MSG_ERROR([bad value '$enable_sensors' for --enable-sensors])
      ;;
esac
if test "$enable_sensors" = yes || test "$my_htop_platform" = freebsd; then
   AC_DEFINE([BUILD_WITH_CPU_TEMP], [1], [Define if CPU temperature option should be enabled.])
fi

# ----------------------------------------------------------------------


# ----------------------------------------------------------------------
# Checks for compiler warnings.
# ----------------------------------------------------------------------

AM_CFLAGS="\
 -Wall\
 -Wcast-align\
 -Wcast-qual\
 -Wextra\
 -Wfloat-equal\
 -Wformat=2\
 -Winit-self\
 -Wmissing-format-attribute\
 -Wmissing-noreturn\
 -Wmissing-prototypes\
 -Wpointer-arith\
 -Wshadow\
 -Wstrict-prototypes\
 -Wundef\
 -Wunused\
 -Wwrite-strings"

# FreeBSD uses C11 _Generic in its isnan implementation, even with -std=c99
if test "$my_htop_platform" = freebsd; then
   AM_CFLAGS="$AM_CFLAGS -Wno-c11-extensions"
fi

dnl https://www.gnu.org/software/autoconf-archive/ax_check_compile_flag.html
AC_DEFUN([AX_CHECK_COMPILE_FLAG],
[
AS_VAR_PUSHDEF([CACHEVAR],[ax_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
   ax_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
   _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
   AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
      [AS_VAR_SET(CACHEVAR,[yes])],
      [AS_VAR_SET(CACHEVAR,[no])])
   _AC_LANG_PREFIX[]FLAGS=$ax_check_save_flags])
AS_VAR_IF(CACHEVAR,yes,
   [m4_default([$2], :)],
   [m4_default([$3], :)])
AS_VAR_POPDEF([CACHEVAR])dnl
])dnl AX_CHECK_COMPILE_FLAGS

AX_CHECK_COMPILE_FLAG([-Wextra-semi-stmt],         [AM_CFLAGS="$AM_CFLAGS -Wextra-semi-stmt"],         , [-Werror=unknown-warning-option]) dnl the autoconf check itself generates -Wextra-semi-stmt
AX_CHECK_COMPILE_FLAG([-Wimplicit-int-conversion], [AM_CFLAGS="$AM_CFLAGS -Wimplicit-int-conversion"], , [-Werror])
AX_CHECK_COMPILE_FLAG([-Wnull-dereference],        [AM_CFLAGS="$AM_CFLAGS -Wnull-dereference"],        , [-Werror])

AC_ARG_ENABLE([werror],
              [AS_HELP_STRING([--enable-werror],
                              [Treat warnings as errors @<:@default=no@:>@])],
              [],
              [enable_werror=no])
if test "x$enable_werror" = xyes; then
   AM_CFLAGS="$AM_CFLAGS -Werror"
fi

AC_ARG_ENABLE([debug],
              [AS_HELP_STRING([--enable-debug],
                              [Enable compiling with maximum debug info, asserts and internal sanity checks @<:@default=no@:>@])],
              [],
              [enable_debug=no])
if test "x$enable_debug" != xyes; then
   AM_CPPFLAGS="$AM_CPPFLAGS -DNDEBUG"
else
   AM_CPPFLAGS="$AM_CPPFLAGS -ggdb3"
fi


AC_SUBST([AM_CFLAGS])
AC_SUBST([AM_CPPFLAGS])

# ----------------------------------------------------------------------


# ----------------------------------------------------------------------
# We're done, let's go!
# ----------------------------------------------------------------------

AC_DEFINE_UNQUOTED([COPYRIGHT], ["(C) 2004-2019 Hisham Muhammad. (C) 2020-2021 htop dev team."], [Copyright message.])

AM_CONDITIONAL([HTOP_LINUX], [test "$my_htop_platform" = linux])
AM_CONDITIONAL([HTOP_FREEBSD], [test "$my_htop_platform" = freebsd])
AM_CONDITIONAL([HTOP_DRAGONFLYBSD], [test "$my_htop_platform" = dragonflybsd])
AM_CONDITIONAL([HTOP_NETBSD], [test "$my_htop_platform" = netbsd])
AM_CONDITIONAL([HTOP_OPENBSD], [test "$my_htop_platform" = openbsd])
AM_CONDITIONAL([HTOP_DARWIN], [test "$my_htop_platform" = darwin])
AM_CONDITIONAL([HTOP_SOLARIS], [test "$my_htop_platform" = solaris])
AM_CONDITIONAL([HTOP_PCP], [test "$my_htop_platform" = pcp])
AM_CONDITIONAL([HTOP_UNSUPPORTED], [test "$my_htop_platform" = unsupported])

AC_SUBST(my_htop_platform)
AC_CONFIG_FILES([Makefile htop.1])
AC_OUTPUT

if test "$my_htop_platform" = unsupported; then
   echo ""
   echo "****************************************************************"
   echo "WARNING! This platform is not currently supported by htop."
   echo ""
   echo "The code will build, but it will produce a dummy version of htop"
   echo "which shows no processes, using the files from the unsupported/"
   echo "directory. This is meant to be a skeleton, to be used as a"
   echo "starting point if you are porting htop to a new platform."
   echo "****************************************************************"
   echo ""
fi

AC_MSG_RESULT([
  ${PACKAGE_NAME} ${VERSION}

  platform:                  $my_htop_platform
  os-release file:           $with_os_release
  (Linux) proc directory:    $with_proc
  (Linux) openvz:            $enable_openvz
  (Linux) vserver:           $enable_vserver
  (Linux) ancient vserver:   $enable_ancient_vserver
  (Linux) delay accounting:  $enable_delayacct
  (Linux) sensors:           $enable_sensors
  (Linux) capabilities:      $enable_capabilities
  unicode:                   $enable_unicode
  affinity:                  $enable_affinity
  unwind:                    $enable_unwind
  hwloc:                     $enable_hwloc
  debug:                     $enable_debug
  static:                    $enable_static
])

© 2014-2022 Faster IT GmbH | imprint | privacy policy