configure.ac 80.8 KB
Newer Older
1
# This file is part of SWIFT.
2
# Copyright (C) 2012 pedro.gonnet@durham.ac.uk.
3
#               2016 p.w.draper@durham.ac.uk.
4
#
Pedro Gonnet's avatar
Pedro Gonnet committed
5
6
7
8
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
9
#
Pedro Gonnet's avatar
Pedro Gonnet committed
10
11
12
13
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
14
#
Pedro Gonnet's avatar
Pedro Gonnet committed
15
16
17
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

18
# Init the project.
19
AC_INIT([SWIFT],[0.8.5],[https://gitlab.cosma.dur.ac.uk/swift/swiftsim])
20
swift_config_flags="$*"
21

22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
#  We want to stop when given unrecognised options. No subdirs so this is safe.
enable_option_checking=${enable_option_checking:-fatal}
if test -n "$ac_unrecognized_opts"; then
    case $enable_option_checking in
        no)
        ;;
        fatal)
            { $as_echo "$as_me: error: unrecognized options: $ac_unrecognized_opts" >&2
              { (exit 1); exit 1; }; }
        ;;
        *)
            $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2
        ;;
    esac
fi

38
AC_COPYRIGHT
39
AC_CONFIG_SRCDIR([src/space.c])
40
AC_CONFIG_AUX_DIR([.])
lhausamm's avatar
lhausamm committed
41
AM_INIT_AUTOMAKE([subdir-objects])
Pedro Gonnet's avatar
Pedro Gonnet committed
42

43
# Add local macro collection.
Pedro Gonnet's avatar
Pedro Gonnet committed
44
45
AC_CONFIG_MACRO_DIR([m4])

46
47
48
49
# Stop default CFLAGS from anyone except the environment.
: ${CFLAGS=""}

# Generate header file.
Pedro Gonnet's avatar
Pedro Gonnet committed
50
51
AM_CONFIG_HEADER(config.h)

52
53
# Find and test the compiler.
AX_CHECK_ENABLE_DEBUG
Peter W. Draper's avatar
Peter W. Draper committed
54
AC_PROG_CC
55
AM_PROG_CC_C_O
56
AC_OPENMP
57

58
# If debug is selected then we also define SWIFT_DEVELOP_MODE to control
Peter W. Draper's avatar
Typo    
Peter W. Draper committed
59
# any developer code options.
60
61
62
63
if test "x$ax_enable_debug" != "xno"; then
   AC_DEFINE([SWIFT_DEVELOP_MODE],1,[Enable developer code options])
fi

64
65
66
67
# C++ in GCC 6 and above has an issue with undefined the min() and max()
# macros. This hack works around that.
AC_DEFINE([_GLIBCXX_INCLUDE_NEXT_C_HEADERS],1,[Hack for min() and max() using g++ 6+])

68
69
70
# Enable POSIX and platform extension preprocessor macros.
AC_USE_SYSTEM_EXTENSIONS

71
72
73
74
# Check for compiler version and vendor.
AX_COMPILER_VENDOR
AX_COMPILER_VERSION

75
76
77
78
79
80
81
# Check whether we have a recent enough GCC
if test "$ax_cv_c_compiler_vendor" = "gnu"; then
   AX_COMPARE_VERSION([$ax_cv_c_compiler_version], [ge], [8.1.0],
		      [gcc_handles_avx512="yes"],
		      [gcc_handles_avx512="no"])
fi

82
83
84
#  Restrict support.
AC_C_RESTRICT

lhausamm's avatar
lhausamm committed
85
86
87
# logger
AC_ARG_ENABLE([logger],
	[AS_HELP_STRING([--enable-logger],
88
		[enable the particle logger]
lhausamm's avatar
lhausamm committed
89
90
91
92
93
94
95
	)],
	[with_logger="${enableval}"],
	[with_logger="no"]
)

if test "$with_logger" = "yes"; then
   AC_DEFINE([WITH_LOGGER], 1, [logger enabled])
96
97
98
99
100
101
   # The logger requires that long long is a 64bit type, let's
   # check that.
   AC_CHECK_SIZEOF([long long int])
   if test "$ac_cv_sizeof_long_long_int" != "8"; then
      AC_MSG_ERROR([The particle logger requires that 'long long int' has size 8 bytes])
   fi
lhausamm's avatar
lhausamm committed
102
fi
103
AM_CONDITIONAL([HAVELOGGER],[test $with_logger = "yes"])
lhausamm's avatar
lhausamm committed
104

105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
# Interprocedural optimization support. Needs special handling for linking and
# archiving as well as compilation with Intels, needs to be done before
# libtool is configured (to use correct LD).
AC_ARG_ENABLE([ipo],
   [AS_HELP_STRING([--enable-ipo],
     [Enable interprocedural optimization @<:@no/yes@:>@]
   )],
   [enable_ipo="$enableval"],
   [enable_ipo="no"]
)

if test "$enable_ipo" = "yes"; then
   if test "$ax_cv_c_compiler_vendor" = "intel"; then
      CFLAGS="$CFLAGS -ip -ipo"
      LDFLAGS="$LDFLAGS -ipo"
      : ${AR="xiar"}
      : ${LD="xild"}
      AC_MSG_RESULT([added Intel interprocedural optimization support])
   elif test "$ax_cv_c_compiler_vendor" = "gnu"; then
      CFLAGS="$CFLAGS -flto"
      LDFLAGS="$LDFLAGS -flto"
126
127
128
129
130
      AX_COMPARE_VERSION($ax_cv_c_compiler_version, [ge], [5.0.0],
                          [
      : ${AR="gcc-ar"}
      : ${RANLIB="gcc-ranlib"}
                          ], [:] )
131
132
      AC_MSG_RESULT([added GCC interprocedural optimization support])
   elif test "$ax_cv_c_compiler_vendor" = "clang"; then
Peter W. Draper's avatar
Peter W. Draper committed
133
134
      CFLAGS="$CFLAGS -flto -fuse-ld=gold"
      LDFLAGS="$LDFLAGS -XCClinker -fuse-ld=gold"
135
      : ${AR="llvm-ar"}
Peter W. Draper's avatar
Peter W. Draper committed
136
      : ${LD="ld.gold"}
137
      : ${RANLIB="llvm-ranlib"}
138
139
140
141
142
143
      AC_MSG_RESULT([added LLVM interprocedural optimization support])
   else
      AC_MSG_WARN([Compiler does not support interprocedural optimization])
   fi
fi

144
145
# Check for MPI. Need to do this before characterising the compiler (C99 mode),
# as this changes the compiler.
146
147
148
149
# We should consider using AX_PROG_CC_MPI to replace AC_PROG_CC when compiling
# whole applications. There are issues with mixing compilers when using this
# macro. See
# http://lists.gnu.org/archive/html/autoconf-archive-maintainers/2011-05/msg00004.html.
150
AC_ARG_ENABLE([mpi],
151
    [AS_HELP_STRING([--enable-mpi],
152
      [Compile with functionality for distributed-memory parallelism using MPI @<:@yes/no@:>@]
153
154
155
156
    )],
    [enable_mpi="$enableval"],
    [enable_mpi="yes"]
)
157
good_mpi="yes"
158
159
if test "$enable_mpi" = "yes"; then
    AX_MPI([CC="$MPICC" AC_DEFINE(HAVE_MPI, 1, [Define if you have the MPI library.]) ])
160
    MPI_LIBRARY="Unknown MPI"
161
162
163

    # Various MPI implementations require additional libraries when also using
    # threads. Use mpirun (on PATH) as that seems to be only command with
164
165
166
167
168
169
    # version flag, allow MPIRUN to override for systems that insist on
    # a non-standard name (PRACE).
    : ${MPIRUN='mpirun'}
    if test "$MPIRUN" = "mpirun"; then
       AC_PATH_PROG([MPIRUN],[mpirun],[notfound])
    fi
170
    if test "$MPIRUN" = "notfound"; then
171
172
       # This may not be fatal (some systems do not allow mpirun on
       # development nodes)., so push on.
173
174
175
176
177
178
179
180
181
182
183
184
       AC_MSG_WARN([Cannot find mpirun command on PATH, thread support may not be correct])
    else
       # Special options we know about.
       # Intel: -mt_mpi
       # PLATFORM: -lmtmpi
       # OpenMPI: nothing, but library should be built correctly.
       # Set MPI_THREAD_LIBS and add to linker commands as necessary.
       AC_MSG_CHECKING([MPI threads options])
       version=`$MPIRUN -version 2>&1`
       case "$version" in
         *Intel*MPI*)
            MPI_THREAD_LIBS="-mt_mpi"
185
            MPI_LIBRARY="Intel MPI"
186
187
188
189
            AC_MSG_RESULT([Intel MPI])
         ;;
         *Platform*)
            MPI_THREAD_LIBS="-lmtmpi"
190
            MPI_LIBRARY="PLATFORM MPI"
191
192
193
194
            AC_MSG_RESULT([PLATFORM MPI])
         ;;
         *"Open MPI"*)
            MPI_THREAD_LIBS=""
195
            MPI_LIBRARY="Open MPI"
196
            AC_MSG_RESULT([Open MPI])
197
198
199
200
201
202
203
204
205
            #  OpenMPI should be 1.8.6 or later, if not complain.
            #  Version is last word on first line of -version output.
            revision=`mpirun -version 2>&1 | grep "Open MPI" | awk '{print $NF}'`
            AX_COMPARE_VERSION( $revision, [ge], [1.8.6],,[good_mpi="no"] )
            if test "$good_mpi" = "no"; then
                AC_MSG_WARN([
    Open MPI version should be at least 1.8.6 (is $revision)])
                enable_mpi="yes (but with warning)"
            fi
206
207
208
209
210
211
212
213
         ;;
         *)
            MPI_THREAD_LIBS=""
            AC_MSG_RESULT([unknown])
         ;;
       esac
       AC_SUBST([MPI_THREAD_LIBS])
    fi
214
    AC_DEFINE_UNQUOTED([SWIFT_MPI_LIBRARY], ["$MPI_LIBRARY"], [The MPI library name, if known.])
215
fi
216
AM_CONDITIONAL([HAVEMPI],[test $enable_mpi = "yes"])
217

Peter W. Draper's avatar
Peter W. Draper committed
218
# Indicate that MPIRUN can be modified by an environment variable
219
220
AC_ARG_VAR(MPIRUN, Path to the mpirun command if non-standard)

221
222
223
# Add libtool support (now that CC is defined).
LT_INIT

224
# Need C99 and inline support.
Pedro Gonnet's avatar
Pedro Gonnet committed
225
AC_PROG_CC_C99
Peter W. Draper's avatar
Peter W. Draper committed
226
227
AC_C_INLINE

228
229
230
231
# If debugging try to show inlined functions.
if test "x$enable_debug" = "xyes"; then
   #  Show inlined functions.
   if test "$ax_cv_c_compiler_vendor" = "gnu"; then
232
233
234
235
236
237
      # Would like to use -gdwarf and let the compiler pick a good version
      # but that doesn't always work.
      AX_CHECK_COMPILE_FLAG([-gdwarf -fvar-tracking-assignments],
        [inline_EXTRA_FLAGS="-gdwarf -fvar-tracking-assignments"],
        [inline_EXTRA_FLAGS="-gdwarf-2 -fvar-tracking-assignments"])
      CFLAGS="$CFLAGS $inline_EXTRA_FLAGS"
238
239
240
241
242
   elif test "$ax_cv_c_compiler_vendor" = "intel"; then
      CFLAGS="$CFLAGS -debug inline-debug-info"
   fi
fi

243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
# Are we using the regular tasks (with atomics and no task conflicts) or
# are we using the atomic-free task-conflicting (slower) version?
AC_ARG_ENABLE([atomics-within-tasks],
   [AS_HELP_STRING([--disable-atomics-within-tasks],
     [Disable the use of atomic operations within tasks. This creates more task conflicts
      but allows for atomic-free and lock-free code within the tasks. This likely slows down
      the code @<:@yes/no@:>@]
   )],
   [enable_atomics_within_tasks="$enableval"],
   [enable_atomics_within_tasks="yes"]
)
AS_IF([test "x$enable_atomics_within_tasks" != "xno"],
   , # Note: atomics are allowed by default, we define the macro if we don't want them.
   [AC_DEFINE([SWIFT_TASKS_WITHOUT_ATOMICS],1,[Makes SWIFT use atomic-free and lock-free tasks.])
])


260
261
262
# Check if task debugging is on.
AC_ARG_ENABLE([task-debugging],
   [AS_HELP_STRING([--enable-task-debugging],
263
     [Store extra information for generating task dump files @<:@yes/no@:>@]
264
265
266
267
268
269
270
271
   )],
   [enable_task_debugging="$enableval"],
   [enable_task_debugging="no"]
)
if test "$enable_task_debugging" = "yes"; then
   AC_DEFINE([SWIFT_DEBUG_TASKS],1,[Enable task debugging])
fi

272
273
274
275
276
277
278
279
280
281
# Check if threadpool debugging is on.
AC_ARG_ENABLE([threadpool-debugging],
   [AS_HELP_STRING([--enable-threadpool-debugging],
     [Store threadpool mapper timing information and generate threadpool dump files @<:@yes/no@:>@]
   )],
   [enable_threadpool_debugging="$enableval"],
   [enable_threadpool_debugging="no"]
)
if test "$enable_threadpool_debugging" = "yes"; then
   AC_DEFINE([SWIFT_DEBUG_THREADPOOL],1,[Enable threadpool debugging])
282
   LDFLAGS="$LDFLAGS -rdynamic"
283
284
fi

285
286
287
288
289
290
291
292
293
294
295
296
# Check if the general timers are switched on.
AC_ARG_ENABLE([timers],
   [AS_HELP_STRING([--enable-timers],
     [Activate the basic timers @<:@yes/no@:>@]
   )],
   [enable_timers="$enableval"],
   [enable_timers="no"]
)
if test "$enable_timers" = "yes"; then
   AC_DEFINE([SWIFT_USE_TIMERS],1,[Enable individual timers])
fi

297
298
299
300
301
302
303
304
305
306
307
308
# Check if expensive debugging is on.
AC_ARG_ENABLE([debugging-checks],
   [AS_HELP_STRING([--enable-debugging-checks],
     [Activate expensive consistency checks @<:@yes/no@:>@]
   )],
   [enable_debugging_checks="$enableval"],
   [enable_debugging_checks="no"]
)
if test "$enable_debugging_checks" = "yes"; then
   AC_DEFINE([SWIFT_DEBUG_CHECKS],1,[Enable expensive debugging])
fi

Loic Hausammann's avatar
Loic Hausammann committed
309
310
311
312
313
314
315
316
317
318
319
320
# Check if cell graph is on.
AC_ARG_ENABLE([cell-graph],
   [AS_HELP_STRING([--enable-cell-graph],
     [Activate the cell graph @<:@yes/no@:>@]
   )],
   [enable_cell_graph="$enableval"],
   [enable_cell_graph="no"]
)
if test "$enable_cell_graph" = "yes"; then
   AC_DEFINE([SWIFT_CELL_GRAPH],1,[Enable cell graph])
fi

321
322
323
324
325
326
327
328
329
330
331
332
# Check if using our custom icbrtf is enalbled.
AC_ARG_ENABLE([custom-icbrtf],
   [AS_HELP_STRING([--enable-custom-icbrtf],
     [Use SWIFT's custom icbrtf function instead of the system cbrtf @<:@yes/no@:>@]
   )],
   [enable_custom_icbrtf="$enableval"],
   [enable_custom_icbrtf="no"]
)
if test "$enable_custom_icbrtf" = "yes"; then
   AC_DEFINE([WITH_ICBRTF],1,[Enable custom icbrtf])
fi

333
334
335
336
337
338
339
340
341
342
343
344
# Check whether we want to default to naive cell interactions
AC_ARG_ENABLE([naive-interactions],
   [AS_HELP_STRING([--enable-naive-interactions],
     [Activate use of naive cell interaction functions @<:@yes/no@:>@]
   )],
   [enable_naive_interactions="$enableval"],
   [enable_naive_interactions="no"]
)
if test "$enable_naive_interactions" = "yes"; then
   AC_DEFINE([SWIFT_USE_NAIVE_INTERACTIONS],1,[Enable use of naive cell interaction functions])
fi

345
346
347
348
349
# Check whether we want to default to naive cell interactions (stars)
AC_ARG_ENABLE([naive-interactions-stars],
   [AS_HELP_STRING([--enable-naive-interactions-stars],
     [Activate use of naive cell interaction functions for stars @<:@yes/no@:>@]
   )],
Loic Hausammann's avatar
Loic Hausammann committed
350
351
   [enable_naive_interactions_stars="$enableval"],
   [enable_naive_interactions_stars="no"]
352
)
Loic Hausammann's avatar
Loic Hausammann committed
353
if test "$enable_naive_interactions_stars" = "yes"; then
354
355
356
   AC_DEFINE([SWIFT_USE_NAIVE_INTERACTIONS_STARS],1,[Enable use of naive cell interaction functions for stars])
fi

357
358
359
360
361
362
363
364
365
366
367
368
369
370
# Check if gravity force checks are on for some particles.
AC_ARG_ENABLE([gravity-force-checks],
   [AS_HELP_STRING([--enable-gravity-force-checks],
     [Activate expensive brute-force gravity checks for a fraction 1/N of all particles @<:@N@:>@]
   )],
   [gravity_force_checks="$enableval"],
   [gravity_force_checks="no"]
)
if test "$gravity_force_checks" == "yes"; then
   AC_MSG_ERROR(Need to specify the fraction of particles to check when using --enable-gravity-force-checks!)
elif test "$gravity_force_checks" != "no"; then
   AC_DEFINE_UNQUOTED([SWIFT_GRAVITY_FORCE_CHECKS], [$enableval] ,[Enable gravity brute-force checks])
fi

371
372
373
374
375
376
377
378
379
380
381
382
# Check whether we want to switch on glass making
AC_ARG_ENABLE([glass-making],
   [AS_HELP_STRING([--enable-glass-making],
     [Activate the glass-making procedure by reversing the sign of gravity @<:@yes/no@:>@]
   )],
   [gravity_glass_making="$enableval"],
   [gravity_glass_making="no"]
)
if test "$gravity_glass_making" == "yes"; then
   AC_DEFINE([SWIFT_MAKE_GRAVITY_GLASS], 1, [Make the code run in a way to produce a glass file for gravity/cosmology])
fi

383
384
385
386
387
388
389
390
391
392
393
394
395
396
# Check if we want to zero the gravity forces for all particles below some ID.
AC_ARG_ENABLE([no-gravity-below-id],
   [AS_HELP_STRING([--enable-no-gravity-below-id],
     [Zeros the gravitational acceleration of all particles with an ID smaller than @<:@N@:>@]
   )],
   [no_gravity_below_id="$enableval"],
   [no_gravity_below_id="no"]
)
if test "$no_gravity_below_id" == "yes"; then
   AC_MSG_ERROR(Need to specify the ID below which particles get zero forces when using --enable-no-gravity-below-id!)
elif test "$no_gravity_below_id" != "no"; then
   AC_DEFINE_UNQUOTED([SWIFT_NO_GRAVITY_BELOW_ID], [$enableval] ,[Particles with smaller ID than this will have zero gravity forces])
fi

Loic Hausammann's avatar
Loic Hausammann committed
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
# Check if we want to use boundary particles.
AC_ARG_ENABLE([boundary-particles],
   [AS_HELP_STRING([--enable-boundary-particles],
     [Set all particles with an ID smaller than @<:@N@:>@ as boundary particles (i.e. receive zero gravity + hydro forces).]
   )],
   [boundary_particles="$enableval"],
   [boundary_particles="no"]
)
if test "$boundary_particles" == "yes"; then
   AC_MSG_ERROR(Need to specify the ID below which particles get zero forces when using --enable-boundary-particles!)
elif test "$boundary_particles" != "no"; then
   AC_DEFINE_UNQUOTED([SWIFT_NO_GRAVITY_BELOW_ID], [$enableval] ,[Particles with smaller ID than this will have zero gravity forces])
   AC_DEFINE_UNQUOTED([SWIFT_BOUNDARY_PARTICLES], [$enableval] ,[Particles with smaller ID than this will be considered as boundaries.])
fi

412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
# Check if we want to use fixed boundary particles.
AC_ARG_ENABLE([fixed-boundary-particles],
   [AS_HELP_STRING([--enable-fixed-boundary-particles],
     [Set all particles with an ID smaller than @<:@N@:>@ as fixed boundary particles (i.e. receive zero gravity + hydro forces + zero velocity), this mode enables also --enable-boundary-particles and --enable-no-gravity-below-id.]
   )],
   [fixed_boundary_particles="$enableval"],
   [fixed_boundary_particles="no"]
)
if test "$fixed_boundary_particles" == "yes"; then
   AC_MSG_ERROR(Need to specify the ID below which particles get zero forces when using --enable-boundary-particles!)
elif test "$fixed_boundary_particles" != "no"; then
   AC_DEFINE_UNQUOTED([SWIFT_NO_GRAVITY_BELOW_ID], [$enableval] ,[Particles with smaller ID than this will have zero gravity forces])
   AC_DEFINE_UNQUOTED([SWIFT_BOUNDARY_PARTICLES], [$enableval] ,[Particles with smaller ID than this will be considered as boundaries.])
   AC_DEFINE_UNQUOTED([SWIFT_FIXED_BOUNDARY_PARTICLES], [$enableval] ,[Particles with smaller ID than this will be considered as boundaries.])
fi

Josh Borrow's avatar
Josh Borrow committed
428
429
430
# Check whether we have any of the ARM v8.1 tick timers
AX_ASM_ARM_PMCCNTR
AX_ASM_ARM_CNTVCT
431

432
433
434
435
436
437
438
439
440
441
442
443
# See if we want memuse reporting.
AC_ARG_ENABLE([memuse-reports],
   [AS_HELP_STRING([--enable-memuse-reports],
     [Output reports about significant memory allocations@<:@yes/no@:>@]
   )],
   [enable_memuse_reports="$enableval"],
   [enable_memuse_reports="no"]
)
if test "$enable_memuse_reports" = "yes"; then
   AC_DEFINE([SWIFT_MEMUSE_REPORTS],1,[Enable memory usage reports])
fi

444
445
446
447
448
449
# The system memory report depends on the presence of /proc/self/statm, i.e.
# a linux OS, check for that.
if test -f "/proc/self/statm"; then
   AC_DEFINE([SWIFT_MEMUSE_STATM],1,[Have /proc/self/statm capability])
fi

450
451
452
453
454
455
456
457
458
459
460
461
# Check if we want to make the dumper thread active.
AC_ARG_ENABLE([dumper],
   [AS_HELP_STRING([--enable-dumper],
     [Dump active tasks and memory use (if configured)@<:@yes/no@:>@]
   )],
   [enable_dumper="$enableval"],
   [enable_dumper="no"]
)
if test "$enable_dumper" = "yes"; then
   AC_DEFINE([SWIFT_DUMPER_THREAD],1,[Enable dumper thread])
fi

462
463
464
465
466
467
468
469
470
471
472
473
# See if we want mpi reporting.
AC_ARG_ENABLE([mpiuse-reports],
   [AS_HELP_STRING([--enable-mpiuse-reports],
     [Output reports about MPI tasks requests@<:@yes/no@:>@]
   )],
   [enable_mpiuse_reports="$enableval"],
   [enable_mpiuse_reports="no"]
)
if test "$enable_mpiuse_reports" = "yes"; then
   AC_DEFINE([SWIFT_MPIUSE_REPORTS],1,[Enable MPI task reports])
fi

474

475
# Define HAVE_POSIX_MEMALIGN if it works.
Pedro Gonnet's avatar
Pedro Gonnet committed
476
477
AX_FUNC_POSIX_MEMALIGN

478
479
# Only optimize if allowed, otherwise assume user will set CFLAGS as
# appropriate.
480
AC_ARG_ENABLE([optimization],
481
   [AS_HELP_STRING([--enable-optimization],
482
     [Enable compile time optimization flags for host @<:@yes/no@:>@]
483
484
485
   )],
   [enable_opt="$enableval"],
   [enable_opt="yes"]
486
487
)

488
489
490
491
492
493
494
495
496
497
498
499
#  Disable vectorisation for known compilers. This switches off optimizations
#  that could be enabled above, so in general should be appended. Slightly odd
#  implementation as want to describe as --disable-vec, but macro is enable
#  (there is no enable action).
AC_ARG_ENABLE([vec],
   [AS_HELP_STRING([--disable-vec],
     [Disable vectorization]
   )],
   [enable_vec="$enableval"],
   [enable_vec="yes"]
)

500
#  Disable hand written vectorisation. Slightly odd implementation as want
501
502
503
504
505
506
507
508
509
# to describe as --disable-hand-vec, but macro is enable (there is no enable action).
AC_ARG_ENABLE([hand-vec],
   [AS_HELP_STRING([--disable-hand-vec],
     [Disable intrinsic vectorization]
   )],
   [enable_hand_vec="$enableval"],
   [enable_hand_vec="yes"]
)

510
511
HAVEVECTORIZATION=0

512
if test "$enable_opt" = "yes" ; then
513

514
   # Choose the best flags for this compiler and architecture
515
516
517
   ac_test_CFLAGS="no"
   AX_CC_MAXOPT
   ac_test_CFLAGS="yes"
518

519
520
   # Choose the best flags for the gravity sub-library on this compiler and architecture
   if test "$ax_cv_c_compiler_vendor" = "intel"; then
521
522
523
524
525
526
527
528
      case "$icc_flags" in
      	 *CORE-AVX512*)
            GRAVITY_CFLAGS="$GRAVITY_CFLAGS -qopt-zmm-usage=high"
	    ;;
	 *)
	    AC_MSG_WARN([No additional flags needed for gravity on this platform])
	    ;;
      esac
529
   elif test "$ax_cv_c_compiler_vendor" = "gnu"; then
530
531
532
      if test "$gcc_handles_avx512" = "yes"; then
         case "$ax_gcc_arch" in
	    *skylake-avx512*)
Matthieu Schaller's avatar
Matthieu Schaller committed
533
               GRAVITY_CFLAGS="$GRAVITY_CFLAGS -mprefer-vector-width=512"
534
535
536
537
538
539
540
541
	       ;;
	    *)
	       AC_MSG_WARN([No additional flags needed for gravity on this platform])
	       ;;
         esac
      else
         AC_MSG_WARN([No additional flags needed for gravity on this platform])
      fi
542
543
544
   else
      AC_MSG_WARN([Do not know what best gravity vectorization flags to choose for this compiler])
   fi
545
546
   AC_ARG_VAR([GRAVITY_CFLAGS], [C compiler flags added to the basic CFLAGS to compile
   				 the gravity-related files.])
547

548
549
550
551
552
553
554
555
556
   # Check SSE & AVX support (some overlap with AX_CC_MAXOPT).
   # Don't use the SIMD_FLAGS result with Intel compilers. The -x<code>
   # value from AX_CC_MAXOPT should be sufficient.
   AX_EXT
   if test "$SIMD_FLAGS" != ""; then
       if test "$ax_cv_c_compiler_vendor" != "intel"; then
           CFLAGS="$CFLAGS $SIMD_FLAGS"
       fi
   fi
557
558
559
560
561
562
563
564
565
566
567
568
569
570

   if test "$enable_vec" = "no"; then
      if test "$ax_cv_c_compiler_vendor" = "intel"; then
      	 CFLAGS="$CFLAGS -no-vec -no-simd"
      	 AC_MSG_RESULT([disabled Intel vectorization])
      elif test "$ax_cv_c_compiler_vendor" = "gnu"; then
      	 CFLAGS="$CFLAGS -fno-tree-vectorize"
      	 AC_MSG_RESULT([disabled GCC vectorization])
      elif test "$ax_cv_c_compiler_vendor" = "clang"; then
         CFLAGS="$CFLAGS -fno-vectorize -fno-slp-vectorize"
         AC_MSG_RESULT([disabled clang vectorization])
      else
         AC_MSG_WARN([Do not know how to disable vectorization for this compiler])
      fi
571
   elif test "$enable_hand_vec" = "yes"; then
James Willis's avatar
James Willis committed
572
      AC_DEFINE([WITH_VECTORIZATION],1,[Enable hand-written vectorization])
573
574
      HAVEVECTORIZATION=1
   fi
575
fi
576
577
AM_CONDITIONAL([HAVEVECTORIZATION],[test -n "$HAVEVECTORIZATION"])

Peter W. Draper's avatar
Peter W. Draper committed
578

579
# Add address sanitizer options to flags, if requested. Only useful for GCC
580
# version 4.8 and later and clang.
581
AC_ARG_ENABLE([sanitizer],
582
   [AS_HELP_STRING([--enable-sanitizer],
583
     [Enable memory error detection using address sanitizer @<:@no/yes@:>@]
584
585
586
   )],
   [enable_san="$enableval"],
   [enable_san="no"]
587
588
)

589
590
591
592
if test "$enable_san" = "yes"; then
   if test "$ax_cv_c_compiler_vendor" = "gnu"; then
      AX_COMPARE_VERSION( $ax_cv_c_compiler_version, [ge], [4.8.0],
                          [enable_san="yes"], [enable_san="no"] )
593
594
595
596
597
598
   elif test "$ax_cv_c_compiler_vendor" = "clang"; then
      AX_COMPARE_VERSION( $ax_cv_c_compiler_version, [ge], [3.2.0],
                          [enable_san="yes"], [enable_san="no"] )
   fi
   if test "$enable_san" = "yes"; then
      CFLAGS="$CFLAGS -fsanitize=address -fno-omit-frame-pointer"
599
      AC_MSG_RESULT([added address sanitizer support])
600
601
   else
      AC_MSG_WARN([Compiler does not support address sanitizer option])
602
603
604
   fi
fi

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
# Add the undefined sanitizer option to flags. Only useful for GCC
# version 4.9 and later and clang to detected undefined code behaviour
# such as integer overflow and memory alignment issues.
AC_ARG_ENABLE([undefined-sanitizer],
   [AS_HELP_STRING([--enable-undefined-sanitizer],
     [Enable detection of code that causes undefined behaviour @<:@no/yes@:>@]
   )],
   [enable_ubsan="$enableval"],
   [enable_ubsan="no"]
)

if test "$enable_ubsan" = "yes"; then
   if test "$ax_cv_c_compiler_vendor" = "gnu"; then
      AX_COMPARE_VERSION( $ax_cv_c_compiler_version, [ge], [4.9.0],
                          [enable_ubsan="yes"], [enable_ubsan="no"] )
   elif test "$ax_cv_c_compiler_vendor" = "clang"; then
      AX_COMPARE_VERSION( $ax_cv_c_compiler_version, [ge], [3.7.0],
                          [enable_ubsan="yes"], [enable_ubsan="no"] )
   fi
   if test "$enable_ubsan" = "yes"; then
      CFLAGS="$CFLAGS -fsanitize=undefined"
      AC_MSG_RESULT([added undefined sanitizer support])
   else
      AC_MSG_WARN([Compiler does not support undefined sanitizer option])
   fi
fi

632
# Autoconf stuff.
Pedro Gonnet's avatar
Pedro Gonnet committed
633
634
635
636
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_HEADER_STDC

637
# Check for the libraries we will need.
Pedro Gonnet's avatar
Pedro Gonnet committed
638
639
AC_CHECK_LIB(m,sqrt,,AC_MSG_ERROR(something is wrong with the math library!))

640
641
642
# Check for GSL. We test for this in the standard directories by default,
# and only disable if using --with-gsl=no or --without-gsl. When a value
# is given GSL must be found.
643
have_gsl="no"
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
AC_ARG_WITH([gsl],
    [AS_HELP_STRING([--with-gsl=PATH],
       [root directory where GSL is installed @<:@yes/no@:>@]
    )],
    [with_gsl="$withval"],
    [with_gsl="test"]
)
if test "x$with_gsl" != "xno"; then
   if test "x$with_gsl" != "xyes" -a "x$with_gsl" != "xtest" -a "x$with_gsl" != "x"; then
      GSL_LIBS="-L$with_gsl/lib -lgsl -lgslcblas"
      GSL_INCS="-I$with_gsl/include"
   else
      GSL_LIBS="-lgsl -lgslcblas"
      GSL_INCS=""
   fi
   #  GSL is not specified, so just check if we have it.
   if test "x$with_gsl" = "xtest"; then
Peter W. Draper's avatar
Peter W. Draper committed
661
      AC_CHECK_LIB([gslcblas],[cblas_dgemm],[have_gsl="yes"],[have_gsl="no"],$GSL_LIBS)
662
      if test "x$have_gsl" != "xno"; then
Peter W. Draper's avatar
Peter W. Draper committed
663
         AC_DEFINE([HAVE_LIBGSLCBLAS],1,[The GSL CBLAS library appears to be present.])
664
665
         AC_CHECK_LIB([gsl],[gsl_integration_qag],
            AC_DEFINE([HAVE_LIBGSL],1,[The GSL library appears to be present.]),
Peter W. Draper's avatar
Peter W. Draper committed
666
            [have_gsl="no"],$GSL_LIBS)
667
668
669
670
671
672
673
674
675
676
      fi
   else
      AC_CHECK_LIB([gslcblas],[cblas_dgemm],
         AC_DEFINE([HAVE_LIBGSLCBLAS],1,[The GSL CBLAS library appears to be present.]),
         AC_MSG_ERROR(something is wrong with the GSL CBLAS library!), $GSL_LIBS)
      AC_CHECK_LIB([gsl],[gsl_integration_qag],
         AC_DEFINE([HAVE_LIBGSL],1,[The GSL library appears to be present.]),
         AC_MSG_ERROR(something is wrong with the GSL library!), $GSL_LIBS)
      have_gsl="yes"
   fi
677
678
679
680
   if test "$have_gsl" = "no"; then
      GSL_LIBS=""
      GSL_INCS=""
   fi
Peter W. Draper's avatar
Peter W. Draper committed
681
fi
682
683
684
AC_SUBST([GSL_LIBS])
AC_SUBST([GSL_INCS])
AM_CONDITIONAL([HAVEGSL],[test -n "$GSL_LIBS"])
685

686
# Check for pthreads.
687
AX_PTHREAD([LIBS="$PTHREAD_LIBS $LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
688
    CC="$PTHREAD_CC" LDFLAGS="$LDFLAGS $PTHREAD_LIBS $LIBS"],
Pedro Gonnet's avatar
Pedro Gonnet committed
689
690
691
692
    AC_MSG_ERROR([Could not find a working version of
    the pthread library. Make sure you have the library and header files installed
    or use CPPFLAGS and LDFLAGS if the library is installed in a
    non-standard location.]))
693

694
# Check whether POSIX thread barriers are implemented (e.g. OSX does not have them)
695
have_pthread_barrier="no"
696
AC_CHECK_LIB(pthread, pthread_barrier_init,
697
	     have_pthread_barrier="yes",
698
	     AC_MSG_WARN(POSIX implementation does not have barriers. SWIFT will use home-made ones.))
699
700
701
if test "x$have_pthread_barrier" == "xyes"; then
  AC_DEFINE([HAVE_PTHREAD_BARRIERS], [1], [The posix library implements barriers])
fi
702

703
704
705
706
# Check whether POSIX file allocation functions exist (e.g. OSX does not have them)
AC_CHECK_LIB(pthread, posix_fallocate,
	     AC_DEFINE([HAVE_POSIX_FALLOCATE], [1], [The posix library implements file allocation functions.]),
	     AC_MSG_WARN(POSIX implementation does not have file allocation functions.))
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
# Check for METIS.
have_metis="no"
AC_ARG_WITH([metis],
    [AS_HELP_STRING([--with-metis=PATH],
       [root directory where METIS is installed @<:@yes/no@:>@]
    )],
    [with_metis="$withval"],
    [with_metis="no"]
)

METIS_LIBS=""
if test "x$with_metis" != "xno"; then

# Check if we have METIS.
   if test "x$with_metis" != "xyes" -a "x$with_metis" != "x"; then
      METIS_LIBS="-L$with_metis/lib -lmetis"
      METIS_INCS="-I$with_metis/include"
   else
      METIS_LIBS="-lmetis"
      METIS_INCS=""
   fi
   AC_CHECK_LIB([metis],[METIS_PartGraphKway], [have_metis="yes"],
                [have_metis="no"], $METIS_LIBS)
   if test "$have_metis" == "yes"; then
      AC_DEFINE([HAVE_METIS],1,[The METIS library is present.])
   else
      AC_MSG_ERROR("Failed to find a METIS library")
   fi
fi

AC_SUBST([METIS_LIBS])
AC_SUBST([METIS_INCS])
AM_CONDITIONAL([HAVEMETIS],[test -n "$METIS_LIBS"])

# Check for ParMETIS note we can have both as ParMETIS uses METIS.
743
have_parmetis="no"
744
745
746
AC_ARG_WITH([parmetis],
    [AS_HELP_STRING([--with-parmetis=PATH],
       [root directory where ParMETIS is installed @<:@yes/no@:>@]
747
    )],
748
    [with_parmetis="$withval"],
749
750
751
752
    [with_parmetis="no"]
)

if test "x$with_parmetis" != "xno"; then
753
754

# Check if we have ParMETIS.
755
756
757
   if test "x$with_parmetis" != "xyes" -a "x$with_parmetis" != "x"; then
      PARMETIS_LIBS="-L$with_parmetis/lib -lparmetis"
      PARMETIS_INCS="-I$with_parmetis/include"
758
   else
759
760
      PARMETIS_LIBS="-lparmetis"
      PARMETIS_INCS=""
761
   fi
762
763
   AC_CHECK_LIB([parmetis],[ParMETIS_V3_RefineKway], [have_parmetis="yes"],
                [have_parmetis="no"], $PARMETIS_LIBS)
764
765
   if test "$have_parmetis" == "no"; then

766
767
# A build may use an external METIS library, check for that.

768
769
770
      if test "x$with_parmetis" != "xyes" -a "x$with_parmetis" != "x"; then
         PARMETIS_LIBS="-L$with_parmetis/lib -lparmetis -lmetis"
         PARMETIS_INCS="-I$with_parmetis/include"
771
      else
772
773
         PARMETIS_LIBS="-lparmetis -lmetis"
         PARMETIS_INCS=""
774
      fi
775
776
      # Note use different function to avoid caching of first check.
      AC_CHECK_LIB([parmetis],[ParMETIS_V3_PartKway], [have_parmetis="yes"],
777
                   [have_parmetis="no"], [$METIS_LIBS $PARMETIS_LIBS])
778
779

   fi
780
781
   if test "$have_parmetis" == "yes"; then
      AC_DEFINE([HAVE_PARMETIS],1,[The ParMETIS library is present.])
782
783
   else
      AC_MSG_ERROR("Failed to find a ParMETIS library")
784
   fi
785
fi
786

787
788
789
AC_SUBST([PARMETIS_LIBS])
AC_SUBST([PARMETIS_INCS])
AM_CONDITIONAL([HAVEPARMETIS],[test -n "$PARMETIS_LIBS"])
790

791
792
793
794
795
796
797
798
# METIS fixed width integer printing can require this, so define. Only needed
# for some non C99 compilers, i.e. C++ pre C++11.
AH_VERBATIM([__STDC_FORMAT_MACROS],
            [/* Needed to get PRIxxx macros from stdint.h when not using C99 */
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS 1
#endif])

799
800
# Check for FFTW. We test for this in the standard directories by default,
# and only disable if using --with-fftw=no or --without-fftw. When a value
801
# is given FFTW must be found.
802
# If FFTW is found, we check whether this is the threaded version.
803
804
805
806
807
808
809
810
811
have_fftw="no"
AC_ARG_WITH([fftw],
    [AS_HELP_STRING([--with-fftw=PATH],
       [root directory where fftw is installed @<:@yes/no@:>@]
    )],
    [with_fftw="$withval"],
    [with_fftw="test"]
)
if test "x$with_fftw" != "xno"; then
812
813

   # Was FFTW's location specifically given?
814
   if test "x$with_fftw" != "xyes" -a "x$with_fftw" != "xtest" -a "x$with_fftw" != "x"; then
815
      FFTW_LIBS="-L$with_fftw/lib -lfftw3"
816
817
      FFTW_INCS="-I$with_fftw/include"
   else
818
      FFTW_LIBS="-lfftw3"
819
820
      FFTW_INCS=""
   fi
821

822
823
824
825
826
827
   #  FFTW is not specified, so just check if we have it.
   if test "x$with_fftw" = "xtest"; then
      AC_CHECK_LIB([fftw3],[fftw_malloc],[have_fftw="yes"],[have_fftw="no"],$FFTW_LIBS)
      if test "x$have_fftw" != "xno"; then
      	 AC_DEFINE([HAVE_FFTW],1,[The FFTW library appears to be present.])
      fi
828
   # FFTW was specified, check that it was a valid location.
829
830
831
832
833
   else
      AC_CHECK_LIB([fftw3],[fftw_malloc],
         AC_DEFINE([HAVE_FFTW],1,[The FFTW library appears to be present.]),
         AC_MSG_ERROR(something is wrong with the FFTW library!), $FFTW_LIBS)
      have_fftw="yes"
834
   fi
835
836

   # FFTW was requested not to be used.
837
838
839
840
   if test "$have_fftw" = "no"; then
      FFTW_LIBS=""
      FFTW_INCS=""
   fi
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

   # Now, check whether we have the threaded version of FFTW
   if test "x$have_fftw" = "xyes"; then

      # Was FFTW's location specifically given?
      if test "x$with_fftw" != "xyes" -a "x$with_fftw" != "xtest" -a "x$with_fftw" != "x"; then
        FFTW_THREADED_LIBS="-L$with_fftw/lib -lfftw3_threads -lfftw3"
        FFTW_THREADED_INCS="-I$with_fftw/include"
      else
        FFTW_THREADED_LIBS="-lfftw3_threads -lfftw3"
        FFTW_THREADED_INCS=""
      fi

      # Verify that the library is threaded
      AC_CHECK_LIB([fftw3],[fftw_init_threads],[have_threaded_fftw="yes"],
		   [have_threaded_fftw="no"], $FFTW_THREADED_LIBS)

      # If found, update things
      if test "x$have_threaded_fftw" = "xyes"; then
         AC_DEFINE([HAVE_THREADED_FFTW],1,[The threaded FFTW library appears to be present.])
         FFTW_LIBS=$FFTW_THREADED_LIBS
         FFTW_INCS=$FFTW_THREADED_INCS
	 have_fftw="yes - threaded"
      fi
   fi
866
fi
Josh Borrow's avatar
Josh Borrow committed
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

AC_ARG_WITH([arm-fftw],
    [AS_HELP_STRING([--with-arm-fftw=PATH],
      [root directory where arm fft library is installed @<:@yes/no@:>@]
    )],
    [with_arm_fftw="$withval"],
    [with_arm_fftw=no]
)
if test "x$with_arm_fftw" != "xno"; then

   # Was FFTW's location specifically given?
   if test "x$with_arm_fftw" != "xyes" -a "x$with_arm_fftw" != "xtest" -a "x$with_arm_fftw" != "x"; then
      FFTW_LIBS="-L$with_arm_fftw/lib -larmpl_lp64"
      FFTW_INCS="-I$with_arm_fftw/include"
   else
      FFTW_LIBS="-larmpl_lp64"
      FFTW_INCS=""
   fi

   #  FFTW is not specified, so just check if we have it.
   if test "x$with_arm_fftw" = "xtest"; then
      AC_CHECK_LIB([armpl_lp64],[fftw_malloc],[have_fftw="yes"],[have_fftw="no"],$FFTW_LIBS)
      if test "x$have_arm_fftw" != "xno"; then
      	 AC_DEFINE([HAVE_FFTW],1,[The FFTW library appears to be present.])
	 have_fftw="yes - ARM"
      fi
   # FFTW was specified, check that it was a valid location.
   else
      AC_CHECK_LIB([armpl_lp64],[fftw_malloc],
         AC_DEFINE([HAVE_FFTW],1,[The FFTW library appears to be present.]),
         AC_MSG_ERROR(something is wrong with the FFTW library!), $FFTW_LIBS)
      have_fftw="yes - ARM"
   fi

   # FFTW was requested not to be used.
   if test "$have_arm_fftw" = "no"; then
      FFTW_LIBS=""
      FFTW_INCS=""
   fi

   # Now, check whether we have the threaded version of FFTW
   if test "x$have_arm_fftw" = "xyes"; then

      # Was FFTW's location specifically given?
      if test "x$with_arm_fftw" != "xyes" -a "x$with_arm_fftw" != "xtest" -a "x$with_arm_fftw" != "x"; then
        FFTW_THREADED_LIBS="-L$with_arm_fftw/lib -larmpl_lp64_threads -larmpl_lp64"
        FFTW_THREADED_INCS="-I$with_arm_fftw/include"
      else
        FFTW_THREADED_LIBS="-larmpl_lp64_threads -larmpl_lp64"
        FFTW_THREADED_INCS=""
      fi

      # Verify that the library is threaded
      AC_CHECK_LIB([armpl_lp64],[fftw_init_threads],[have_threaded_fftw="yes"],
                  [have_threaded_fftw="no"], $FFTW_THREADED_LIBS)

      # If found, update things
      if test "x$have_threaded_fftw" = "xyes"; then
         AC_DEFINE([HAVE_THREADED_FFTW],1,[The threaded FFTW library appears to be present.])
         FFTW_LIBS=$FFTW_THREADED_LIBS
         FFTW_INCS=$FFTW_THREADED_INCS
         have_fftw="yes - ARM - threaded"
      fi
   fi
fi
932
933
934
AC_SUBST([FFTW_LIBS])
AC_SUBST([FFTW_INCS])
AM_CONDITIONAL([HAVEFFTW],[test -n "$FFTW_LIBS"])
935

936
937
938
#  Check for -lprofiler usually part of the gperftools along with tcmalloc.
have_profiler="no"
AC_ARG_WITH([profiler],
939
   [AS_HELP_STRING([--with-profiler=PATH],
940
941
942
943
944
945
946
947
948
949
950
951
      [use cpu profiler library or specify the directory with lib @<:@yes/no@:>@]
   )],
   [with_profiler="$withval"],
   [with_profiler="no"]
)
if test "x$with_profiler" != "xno"; then
   if test "x$with_profiler" != "xyes" -a "x$with_profiler" != "x"; then
      proflibs="-L$with_profiler -lprofiler"
   else
      proflibs="-lprofiler"
   fi
   AC_CHECK_LIB([profiler],[ProfilerFlush],
952
    [have_profiler="yes"
953
954
955
956
957
958
959
960
961
962
963
964
965
966
      AC_DEFINE([WITH_PROFILER],1,[Link against the gperftools profiling library.])],
    [have_profiler="no"], $proflibs)

   if test "$have_profiler" = "yes"; then
      PROFILER_LIBS="$proflibs"
   else
      PROFILER_LIBS=""
   fi
fi
AC_SUBST([PROFILER_LIBS])
AM_CONDITIONAL([HAVEPROFILER],[test -n "$PROFILER_LIBS"])

# Check for special allocators
have_special_allocator="no"
967

968
969
970
#  Check for tcmalloc a fast malloc that is part of the gperftools.
have_tcmalloc="no"
AC_ARG_WITH([tcmalloc],
971
   [AS_HELP_STRING([--with-tcmalloc=PATH],
972
973
974
975
976
      [use tcmalloc library or specify the directory with lib @<:@yes/no@:>@]
   )],
   [with_tcmalloc="$withval"],
   [with_tcmalloc="no"]
)
977
978
979
980
if test "x$with_tcmalloc" != "xno" -a "x$have_special_allocator" != "xno"; then
   AC_MSG_ERROR("Cannot activate more than one alternative malloc library")
fi

981
if test "x$with_tcmalloc" != "xno"; then
Peter W. Draper's avatar
Peter W. Draper committed
982
   if test "x$with_tcmalloc" != "xyes" -a "x$with_tcmalloc" != "x"; then
983
      tclibs="-L$with_tcmalloc -ltcmalloc"
984
   else
985
      tclibs="-ltcmalloc"
986
987
   fi
   AC_CHECK_LIB([tcmalloc],[tc_cfree],[have_tcmalloc="yes"],[have_tcmalloc="no"],
988
                $tclibs)
989
990
991

   #  Could just have the minimal version.
   if test "$have_tcmalloc" = "no"; then
Peter W. Draper's avatar
Peter W. Draper committed
992
      if test "x$with_tcmalloc" != "xyes" -a "x$with_tcmalloc" != "x"; then
993
         tclibs="-L$with_tcmalloc -ltcmalloc_minimal"
994
      else
995
         tclibs="-ltcmalloc_minimal"
996
997
      fi
      AC_CHECK_LIB([tcmalloc],[tc_cfree],[have_tcmalloc="yes"],[have_tcmalloc="no"],
998
                   $tclibs)
999
   fi
Pedro Gonnet's avatar
Pedro Gonnet committed
1000

1001
1002
1003
   if test "$have_tcmalloc" = "yes"; then
      TCMALLOC_LIBS="$tclibs"

1004
      AC_DEFINE([HAVE_TCMALLOC],1,[The tcmalloc library appears to be present.])
1005

1006
      have_special_allocator="tcmalloc"
1007
1008

      # Prevent compilers that replace the calls with built-ins (GNU 99) from doing so.
1009
1010
1011
1012
1013
1014
      case "$ax_cv_c_compiler_vendor" in
        intel | gnu | clang)
             CFLAGS="$CFLAGS -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free"
          ;;
      esac

1015
1016
   else
      TCMALLOC_LIBS=""
1017
1018
1019
1020
1021
   fi
fi
AC_SUBST([TCMALLOC_LIBS])
AM_CONDITIONAL([HAVETCMALLOC],[test -n "$TCMALLOC_LIBS"])

Peter W. Draper's avatar
Peter W. Draper committed
1022
1023
1024
#  Check for jemalloc another fast malloc that is good with contention.
have_jemalloc="no"
AC_ARG_WITH([jemalloc],
1025
   [AS_HELP_STRING([--with-jemalloc=PATH],
Peter W. Draper's avatar
Peter W. Draper committed
1026
1027
1028
1029
1030
      [use jemalloc library or specify the directory with lib @<:@yes/no@:>@]
   )],
   [with_jemalloc="$withval"],
   [with_jemalloc="no"]
)
1031
1032
1033
1034
if test "x$with_jemalloc" != "xno" -a "x$have_special_allocator" != "xno"; then
   AC_MSG_ERROR("Cannot activate more than one alternative malloc library")
fi

Peter W. Draper's avatar
Peter W. Draper committed
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
if test "x$with_jemalloc" != "xno"; then
   if test "x$with_jemalloc" != "xyes" -a "x$with_jemalloc" != "x"; then
      jelibs="-L$with_jemalloc -ljemalloc"
   else
      jelibs="-ljemalloc"
   fi
   AC_CHECK_LIB([jemalloc],[malloc_usable_size],[have_jemalloc="yes"],[have_jemalloc="no"],
                $jelibs)

   if test "$have_jemalloc" = "yes"; then
      JEMALLOC_LIBS="$jelibs"
1046

1047
      AC_DEFINE([HAVE_JEMALLOC],1,[The jemalloc library appears to be present.])
1048

1049
      have_special_allocator="jemalloc"
1050
1051

      # Prevent compilers that replace the regular calls with built-ins (GNU 99) from doing so.
1052
1053
1054
1055
1056
1057
      case "$ax_cv_c_compiler_vendor" in
        intel | gnu | clang)
             CFLAGS="$CFLAGS -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free"
          ;;
      esac

Peter W. Draper's avatar
Peter W. Draper committed
1058
1059
1060
1061
1062
1063
1064
   else
      JEMALLOC_LIBS=""
   fi
fi
AC_SUBST([JEMALLOC_LIBS])
AM_CONDITIONAL([HAVEJEMALLOC],[test -n "$JEMALLOC_LIBS"])

1065
1066
1067
#  Check for tbbmalloc, Intel's fast and parallel allocator
have_tbbmalloc="no"
AC_ARG_WITH([tbbmalloc],
1068
   [AS_HELP_STRING([--with-tbbmalloc=PATH],
1069
1070
1071
1072
1073
1074
1075
      [use tbbmalloc library or specify the directory with lib @<:@yes/no@:>@]
   )],
   [with_tbbmalloc="$withval"],
   [with_tbbmalloc="no"]
)
if test "x$with_tbbmalloc" != "xno" -a "x$have_special_allocator" != "xno"; then
   AC_MSG_ERROR("Cannot activate more than one alternative malloc library")
Peter W. Draper's avatar
Peter W. Draper committed
1076
1077
fi

1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
if test "x$with_tbbmalloc" != "xno"; then
   if test "x$with_tbbmalloc" != "xyes" -a "x$with_tbbmalloc" != "x"; then
      tbblibs="-L$with_tbbmalloc -ltbbmalloc_proxy -ltbbmalloc"
   else
      tbblibs="-ltbbmalloc_proxy -ltbbmalloc"
   fi
   AC_CHECK_LIB([tbbmalloc],[scalable_malloc],[have_tbbmalloc="yes"],[have_tbbmalloc="no"],
                $tbblibs)

   if test "$have_tbbmalloc" = "yes"; then
      TBBMALLOC_LIBS="$tbblibs"

1090
      AC_DEFINE([HAVE_TBBMALLOC],1,[The TBBmalloc library appears to be present.])
1091

1092
      have_special_allocator="TBBmalloc"
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103

      # Prevent compilers that replace the calls with built-ins (GNU 99) from doing so.
      case "$ax_cv_c_compiler_vendor" in
        intel | gnu | clang)
             CFLAGS="$CFLAGS -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free"
          ;;
      esac

   else
      TBBMALLOC_LIBS=""
   fi
Peter W. Draper's avatar
Peter W. Draper committed
1104
fi
1105
1106
AC_SUBST([TBBMALLOC_LIBS])
AM_CONDITIONAL([HAVETBBMALLOC],[test -n "$TBBMALLOC_LIBS"])
Peter W. Draper's avatar
Peter W. Draper committed
1107

Loic Hausammann's avatar
Loic Hausammann committed
1108
1109
1110
1111
1112
1113
1114
1115
# check for a random seed
AC_ARG_WITH([random-seed],
    [AS_HELP_STRING([--with-random-seed=SHORT INT],
       [Set the random seed.]
    )],
    [with_random_seed="$withval"],
    [with_random_seed="0"]
)
1116
AC_DEFINE_UNQUOTED([SWIFT_RANDOM_SEED_XOR], [$with_random_seed],[Value of the random seed.])
Loic Hausammann's avatar
Loic Hausammann committed
1117

1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
# Check for python.
have_python="no"
AC_ARG_WITH([python],
    [AS_HELP_STRING([--with-python=PATH],
       [root directory where python is installed @<:@yes/no@:>@]
    )],
    [with_python="$withval"],
    [with_python="no"]
)
if test "x$with_python" != "xno"; then
Loic Hausammann's avatar
Loic Hausammann committed
1128
1129
1130
1131
   if test "$with_python" == ""; then
      # use linux default python
      with_python="/usr/"
   fi
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
   AM_PATH_PYTHON([3], [], [AC_MSG_ERROR(python not found)])   
   AC_ARG_VAR([PYTHON_INCS], [Include flags for python, bypassing python-config])
   AC_ARG_VAR([PYTHON_CONFIG], [Path to python-config])
   AS_IF([test -z "$PYTHON_INCS"], [
      AS_IF([test -z "$PYTHON_CONFIG"], [
      	AC_PATH_PROGS([PYTHON_CONFIG],
	          [python$PYTHON_VERSION-config python-config],
                  [no],
                  [`dirname $PYTHON`])
    	AS_IF([test "$PYTHON_CONFIG" = no], [AC_MSG_ERROR([cannot find python-config for $PYTHON.])])
      ])
      AC_MSG_CHECKING([python include flags])
      PYTHON_INCS=`$PYTHON_CONFIG --includes`
      AC_MSG_RESULT([$PYTHON_INCS])
  ])
  have_python="yes"
Loic Hausammann's avatar
Loic Hausammann committed
1148
  AC_DEFINE([HAVE_PYTHON],1,[Python appears to be present.])
1149
1150
fi
AC_SUBST([PYTHON_INCS])
1151
AM_CONDITIONAL([HAVEPYTHON],[test -n "$PYTHON_INCS"])
1152
1153


1154
# Check for HDF5. This is required.
1155
AX_LIB_HDF5
1156
1157
1158
1159
if test "$with_hdf5" != "yes"; then
    AC_MSG_ERROR([Could not find a working HDF5 library])
fi

1160
1161
1162
# We want to know if this HDF5 supports MPI and whether we should use it.
# The default is to use MPI support if it is available, i.e. this is
# a parallel HDF5.
1163
1164
have_parallel_hdf5="no"
if test "$with_hdf5" = "yes"; then
1165
1166
    AC_ARG_ENABLE([parallel-hdf5],
       [AS_HELP_STRING([--enable-parallel-hdf5],
1167
         [Enable parallel HDF5 library MPI functions if available. @<:@yes/no@:>@]
1168
1169
1170
1171
1172
1173
1174
       )],
       [enable_parallel_hdf5="$enableval"],
       [enable_parallel_hdf5="yes"]
    )

    if test "$enable_parallel_hdf5" = "yes"; then
        AC_MSG_CHECKING([for HDF5 parallel support])
1175
1176

	# Check if the library is capable, the header should define H5_HAVE_PARALLEL.
1177
1178
        old_CPPFLAGS="$CPPFLAGS"
        CPPFLAGS="$CPPFLAGS $HDF5_CPPFLAGS"
1179
1180
1181
1182
1183
1184
        AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
        #include "hdf5.h"
        #ifndef H5_HAVE_PARALLEL
        # error macro not defined
        #endif
        ]])], [parallel="yes"], [parallel="no"])
1185
1186
1187
1188
1189
        if test "$parallel" = "yes"; then
            have_parallel_hdf5="yes"
            AC_DEFINE([HAVE_PARALLEL_HDF5],1,[HDF5 library supports parallel access])
        fi
        AC_MSG_RESULT($parallel)
1190
        CPPFLAGS="$old_CPPFLAGS"
1191
1192
1193
1194
    fi
fi
AM_CONDITIONAL([HAVEPARALLELHDF5],[test "$have_parallel_hdf5" = "yes"])

1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
# Check for grackle.
have_grackle="no"
AC_ARG_WITH([grackle],
    [AS_HELP_STRING([--with-grackle=PATH],
       [root directory where grackle is installed @<:@yes/no@:>@]
    )],
    [with_grackle="$withval"],
    [with_grackle="no"]
)
if test "x$with_grackle" != "xno"; then
   AC_PROG_FC
   AC_FC_LIBRARY_LDFLAGS
   if test "x$with_grackle" != "xyes" -a "x$with_grackle" != "x"; then
      GRACKLE_LIBS="-L$with_grackle/lib -lgrackle"
      GRACKLE_INCS="-I$with_grackle/include"
   else
      GRACKLE_LIBS="-lgrackle"
      GRACKLE_INCS=""
   fi

   have_grackle="yes"

   echo $GRACKLE_LIBS

   AC_CHECK_LIB(
      [grackle],
      [initialize_chemistry_data],
      [AC_DEFINE([HAVE_GRACKLE],1,[The GRACKLE library appears to be present.])
        AC_DEFINE([CONFIG_BFLOAT_8],1,[Use doubles in grackle])
      ],
      [AC_MSG_ERROR(Cannot find grackle library!)],
      [$GRACKLE_LIBS])
fi
AC_SUBST([GRACKLE_LIBS])
AC_SUBST([GRACKLE_INCS])
AM_CONDITIONAL([HAVEGRACKLE],[test -n "$GRACKLE_LIBS"])

1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
# Check for VELOCIraptor.
have_velociraptor="no"
AC_ARG_WITH([velociraptor],
    [AS_HELP_STRING([--with-velociraptor=PATH],
       [Directory where velociraptor library exists @<:@yes/no@:>@]
    )],
    [with_velociraptor="$withval"],
    [with_velociraptor="no"]
)
if test "x$with_velociraptor" != "xno"; then
   AC_PROG_FC
   AC_FC_LIBRARY_LDFLAGS
   if test "x$with_velociraptor" != "xyes" -a "x$with_velociraptor" != "x"; then
1245
      VELOCIRAPTOR_LIBS="-L$with_velociraptor -lvelociraptor -lmpi -lstdc++ -lhdf5"
1246
1247
1248
1249
1250
1251
1252
1253
      CFLAGS="$CFLAGS -fopenmp"
   else
      VELOCIRAPTOR_LIBS=""
   fi

   have_velociraptor="yes"

   AC_CHECK_LIB(
Loic Hausammann's avatar
Loic Hausammann committed
1254
      [velociraptor],
1255
1256
      [InitVelociraptor],
      [AC_DEFINE([HAVE_VELOCIRAPTOR],1,[The VELOCIraptor library appears to be present.])],
1257
      [AC_MSG_ERROR(Cannot find VELOCIraptor library at $with_velociraptor or incompatible HDF5 library loaded.)],
1258
1259
1260
1261
1262
1263
      [$VELOCIRAPTOR_LIBS $HDF5_LDFLAGS $HDF5_LIBS $GSL_LIBS]
   )
fi
AC_SUBST([VELOCIRAPTOR_LIBS])
AM_CONDITIONAL([HAVEVELOCIRAPTOR],[test -n "$VELOCIRAPTOR_LIBS"])

1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
# Now that we found VELOCIraptor, let's check how it was compiled.
if test "$have_velociraptor" == "yes"; then
    AC_CHECK_LIB(
       [velociraptor],
       [VR_NOMASS],
       [AC_DEFINE([HAVE_VELOCIRAPTOR_WITH_NOMASS],1,[The VELOCIraptor library has been compiled with the NOMASS option. Only useful if running a uniform box.])],
       [AC_MSG_RESULT(VELOCIraptor not compiled to so as to *not* store masses per particle.)],
       [$VELOCIRAPTOR_LIBS $HDF5_LDFLAGS $HDF5_LIBS $GSL_LIBS]
    )
fi

1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
# Check for dummy VELOCIraptor.
AC_ARG_ENABLE([dummy-velociraptor],
    [AS_HELP_STRING([--enable-dummy-velociraptor],
       [Enable dummy velociraptor compilation @<:@yes/no@:>@]
    )],
    [enable_dummy_velociraptor="$enableval"],
    [enable_dummy_velociraptor="no"]
)

if test "$enable_dummy_velociraptor" = "yes"; then
  have_velociraptor="yes"

  AC_DEFINE(HAVE_VELOCIRAPTOR,1,[The VELOCIraptor library appears to be present.])
  AC_DEFINE(HAVE_DUMMY_VELOCIRAPTOR,1,[The dummy VELOCIraptor library is present.])
fi

1291
1292
1293
1294
# Check for floating-point execeptions
AC_CHECK_FUNC(feenableexcept, AC_DEFINE([HAVE_FE_ENABLE_EXCEPT],[1],
    [Defined if the floating-point exception can be enabled using non-standard GNU functions.]))

1295
# Check for setaffinity.
1296
AC_CHECK_FUNC(pthread_setaffinity_np, AC_DEFINE([HAVE_SETAFFINITY],[1],
Pedro Gonnet's avatar
Pedro Gonnet committed
1297
    [Defined if pthread_setaffinity_np exists.]) )
1298
1299
AM_CONDITIONAL(HAVESETAFFINITY,
    [test "$ac_cv_func_pthread_setaffinity_np" = "yes"])
1300

1301
1302
1303
1304
# If available check for NUMA as well. There is a problem with the headers of
# this library, mainly that they do not pass the strict prototypes check when
# installed outside of the system directories. So we actually do this check
# in two phases. The basic ones first (before strict-prototypes is added to CFLAGS).
1305
have_numa="no"
1306
1307
1308
1309
1310
1311
1312
1313
1314
AC_ARG_WITH([numa],
    [AS_HELP_STRING([--with-numa=PATH],
       [Directory where the NUMA library exists @<:@yes/no@:>@]
    )],
    [with_numa="$withval"],
    [with_numa="yes"]
)
if test "$ac_cv_func_pthread_setaffinity_np" = "yes" -a "x$with_numa" != "xno"; then

1315
1316
1317
1318
1319
1320
1321
    if test "x$with_numa" != "xyes" -a "x$with_numa" != "x"; then
        NUMA_LIBS="-L$with_numa/lib -lnuma"
        NUMA_INCS="-I$with_numa/include"
    else
        NUMA_LIBS="-lnuma"
        NUMA_INCS=""
    fi
Angus Lepper's avatar
Angus Lepper committed
1322

1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
    #  Test for header file.
    old_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$CPPFLAGS $NUMA_INCS"
    AC_CHECK_HEADER([numa.h])
    CPPFLAGS="$old_CPPFLAGS"
    if test "$ac_cv_header_numa_h" = "yes"; then

        #  If NUMA location is specified check if we have it.
        if test "x$with_numa" != "xyes" -a "x$with_numa" != "x"; then
            AC_CHECK_LIB([numa],[numa_available],
                AC_DEFINE([HAVE_LIBNUMA],1,[The NUMA library appears to be present.]),
                AC_MSG_ERROR(something is wrong with the NUMA library!), $NUMA_LIBS)
            have_numa="yes"
        else
            AC_CHECK_LIB([numa],[numa_available],[have_numa="yes"],[have_numa="no"],$NUMA_LIBS)
            if test "x$have_numa" != "xno"; then
                AC_DEFINE([HAVE_LIBNUMA],1,[The NUMA library appears to be present.])
            fi
        fi
    fi
Angus Lepper's avatar
Angus Lepper committed
1343

1344
1345
1346
1347
    #  We can live without this.
    if test "$have_numa" = "no"; then
       NUMA_LIBS=""
    fi
1348
1349
fi
AC_SUBST([NUMA_LIBS])
1350

Pedro Gonnet's avatar
Pedro Gonnet committed
1351
# Check for Intel and PowerPC intrinsics header optionally used by vector.h.
Josh Borrow's avatar
Josh Borrow committed
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
AC_CHECK_HEADERS([immintrin.h], [], [],
[#ifdef HAVE_IMMINTRIN_H
# include <immintrin.h>
#endif
])
AC_CHECK_HEADERS([altivec.h], [], [],
[#ifdef HAVE_ALTIVEC_H
# include <altivec.h>
#endif
])
1362

1363
# Check for timing functions needed by cycle.h.
Pedro Gonnet's avatar
Pedro Gonnet committed
1364
1365
AC_HEADER_TIME
AC_CHECK_HEADERS([sys/time.h c_asm.h intrinsics.h mach/mach_time.h])
1366
1367
1368
AC_CHECK_TYPE([hrtime_t],[AC_DEFINE(HAVE_HRTIME_T, 1, [Define to 1 if hrtime_t
is defined in <sys/time.h>])],,
[#if HAVE_SYS_TIME_H
Pedro Gonnet's avatar
Pedro Gonnet committed
1369
1370
1371
1372
1373
#include <sys/time.h>
#endif])
AC_CHECK_FUNCS([gethrtime read_real_time time_base_to_time clock_gettime mach_absolute_time])
AC_MSG_CHECKING([for _rtc intrinsic])
rtc_ok=yes
1374
1375
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#ifdef HAVE_INTRINSICS_H
Pedro Gonnet's avatar
Pedro Gonnet committed
1376
#include <intrinsics.h>
1377
#endif]],
1378
1379
[[_rtc()]])],
[AC_DEFINE(HAVE__RTC,1,[Define if you have the UNICOS _rtc() intrinsic.])],[rtc_ok=no])
Pedro Gonnet's avatar
Pedro Gonnet committed
1380
1381
AC_MSG_RESULT($rtc_ok)

Josh Borrow's avatar
Josh Borrow committed
1382
# Special timers for the ARM v7 platforms (taken from FFTW-3 to match their cycle.h)
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
AC_ARG_ENABLE(armv7a-cntvct, [AC_HELP_STRING([--enable-armv7a-cntvct],[enable the cycle counter on Armv7a via the CNTVCT register])], have_armv7acntvct=$enableval)
if test "$have_armv7acntvct"x = "yes"x; then
	AC_DEFINE(HAVE_ARMV7A_CNTVCT,1,[Define if you have enabled the CNTVCT cycle counter on ARMv7a])
fi

AC_ARG_ENABLE(armv7a-pmccntr, [AC_HELP_STRING([--enable-armv7a-pmccntr],[enable the cycle counter on Armv7a via the PMCCNTR register])], have_armv7apmccntr=$enableval)
if test "$have_armv7apmccntr"x = "yes"x; then
	AC_DEFINE(HAVE_ARMV7A_PMCCNTR,1,[Define if you have enabled the PMCCNTR cycle counter on ARMv7a])
fi

1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
# Check if we have native exp10 and exp10f functions. If not failback to our
# implementations. On Apple/CLANG we have __exp10, so also check for that
# if the compiler is clang.
AC_CHECK_LIB([m],[exp10], [AC_DEFINE([HAVE_EXP10],1,[The exp10 function is present.])])
AC_CHECK_LIB([m],[exp10f], [AC_DEFINE([HAVE_EXP10F],1,[The exp10f function is present.])])
if test "$ax_cv_c_compiler_vendor" = "clang"; then
      AC_CHECK_LIB([m],[__exp10], [AC_DEFINE([HAVE___EXP10],1,[The __exp10 function is present.])])
      AC_CHECK_LIB([m],[__exp10f], [AC_DEFINE([HAVE___EXP10F],1,[The __exp10f function is present.])])
fi

1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
# Check if we have native sincos and sincosf functions. If not failback to our
# implementations. On Apple/CLANG we have __sincos, so also check for that
# if the compiler is clang.
AC_CHECK_LIB([m],[sincos], [AC_DEFINE([HAVE_SINCOS],1,[The sincos function is present.])])
AC_CHECK_LIB([m],[sincosf], [AC_DEFINE([HAVE_SINCOSF],1,[The sincosf function is present.])])
if test "$ax_cv_c_compiler_vendor" = "clang"; then
      AC_CHECK_LIB([m],[__sincos], [AC_DEFINE([HAVE___SINCOS],1,[The __sincos function is present.])])
      AC_CHECK_LIB([m],[__sincosf], [AC_DEFINE([HAVE___SINCOSF],1,[The __sincosf function is present.])])
fi


1414
# Add warning flags by default, if these can be used. Option =error adds
1415
# -Werror to GCC, clang and Intel.  Note do this last as compiler tests may
1416
# become errors, if that's an issue don't use CFLAGS for these, use an AC_SUBST().
1417
1418
AC_ARG_ENABLE([compiler-warnings],
   [AS_HELP_STRING([--enable-compiler-warnings],
1419
     [Enable compile time warning flags, if compiler is known @<:@error/no/yes)@:>@]
1420
1421
   )],
   [enable_warn="$enableval"],
1422
   [enable_warn="error"]
1423
1424
)
if test "$enable_warn" != "no"; then
1425

1426
    # AX_CFLAGS_WARN_ALL does not give good warning flags for the Intel compiler
1427
    # We will do this by hand instead and only default to the macro for unknown compilers
1428
1429
    case "$ax_cv_c_compiler_vendor" in
          gnu | clang)
1430
             CFLAGS="$CFLAGS -Wall -Wextra -Wno-unused-parameter -Wshadow"
1431
          ;;
1432
	  intel)
1433
             CFLAGS="$CFLAGS -w2 -Wunused-variable -Wshadow"
1434
          ;;
1435
1436
1437
	  *)
	     AX_CFLAGS_WARN_ALL
	  ;;
1438
    esac
1439

1440
    # Add a "choke on warning" flag if it exists
1441
    if test "$enable_warn" = "error"; then
1442
       case "$ax_cv_c_compiler_vendor" in
1443
          intel | gnu | clang)
1444
1445
1446
             CFLAGS="$CFLAGS -Werror"
          ;;
       esac
1447
    fi
1448
1449
1450
1451
1452

    # We want strict-prototypes, but this must still work even if warnings
    # are an error.
    AX_CHECK_COMPILE_FLAG([-Wstrict-prototypes],[CFLAGS="$CFLAGS -Wstrict-prototypes"],
                          [CFLAGS="$CFLAGS"],[$CFLAGS],[AC_LANG_SOURCE([int main(void){return 0;}])])
1453
1454
fi

1455
1456
1457
# Second part of the NUMA library checks. We now decide if we need to use
# -isystem to get around the strict-prototypes problem. Assumes isystem
# is available when strict-prototypes is.
1458
1459
1460
1461
1462
if test "$have_numa" != "no"; then
    if test "x$with_numa" != "xyes" -a "x$with_numa" != "x"; then
        case "$CFLAGS" in
            *strict-prototypes*)
                NUMA_INCS="-isystem$with_numa/include"
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
                # This may still fail if CPATH is used, so we check if the
                # headers are usable.
                AS_UNSET(ac_cv_header_numa_h)
                old_CPPFLAGS="$CPPFLAGS"
                CPPFLAGS="$CPPFLAGS $NUMA_INCS"
                numa_failed="no"
                AC_CHECK_HEADER([numa.h],[numa_failed="no"],
                                [numa_failed="yes"])
                if test "$numa_failed" = "yes"; then
                    AC_MSG_ERROR([Failed to compile the numa.h header file: you may need to set --enable-compiler-warnings to yes or no])
                fi
                CPPFLAGS="$old_CPPFLAGS"
1475
1476
1477
1478
1479
            ;;
            *)
                NUMA_INCS="-I$with_numa/include"
            ;;
        esac
1480
1481
1482
1483
   fi
fi
AC_SUBST([NUMA_INCS])

1484
1485
# Various package configuration options.

1486
1487
1488
1489
1490
1491
# Master subgrid options
# If you add a restriction (e.g. no cooling, chemistry or hydro)
# you will need to check for overwrite after reading the additional options.
# As an example for this, see the call to AC_ARG_WITH for cooling.
AC_ARG_WITH([subgrid],
	[AS_HELP_STRING([--with-subgrid=<subgrid>],
1492
		[Master switch for subgrid methods. Inexperienced user should start here. Options are: @<:@none, GEAR, QLA, EAGLE, EAGLE-XL default: none@:>@]
1493
1494
1495
1496
1497
1498
1499
1500
	)],
	[with_subgrid="$withval"],
	[with_subgrid=none]
)

# Default values
with_subgrid_cooling=none
with_subgrid_chemistry=none
1501
with_subgrid_tracers=none
1502
with_subgrid_entropy_floor=none
Loic Hausammann's avatar
Loic Hausammann committed
1503
with_subgrid_pressure_floor=none
1504
with_subgrid_stars=none
1505
with_subgrid_star_formation=none
1506
with_subgrid_feedback=none
Loic Hausammann's avatar
Loic Hausammann committed
1507
with_subgrid_task_order=default
Loic Hausammann's avatar
Loic Hausammann committed
1508
with_subgrid_sink=none
1509
1510
1511
1512
1513
1514
1515
1516

case "$with_subgrid" in
   yes)
      AC_MSG_ERROR([Invalid option. A subgrid model must be chosen.])
   ;;
   none)
   ;;
   GEAR)
Loic Hausammann's avatar
Loic Hausammann committed
1517
	with_subgrid_cooling=grackle_0
Loic Hausammann's avatar
Gear    
Loic Hausammann committed
1518
	with_subgrid_chemistry=GEAR_10
Loic Hausammann's avatar
Loic Hausammann committed
1519
	with_subgrid_pressure_floor=GEAR
Loic Hausammann's avatar
Loic Hausammann committed
1520
	with_subgrid_stars=GEAR
Loic Hausammann's avatar
Loic Hausammann committed
1521
	with_subgrid_star_formation=GEAR
Loic Hausammann's avatar
Gear    
Loic Hausammann committed
1522
	with_subgrid_feedback=GEAR
1523
	with_subgrid_black_holes=none
Loic Hausammann's avatar
Loic Hausammann committed
1524
	with_subgrid_task_order=GEAR
1525
  	with_subgrid_sink=none