configure.ac 50.8 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],[0.7.0],[https://gitlab.cosma.dur.ac.uk/swift/swiftsim])
20
swift_config_flags="$*"
21

22
AC_COPYRIGHT
23
AC_CONFIG_SRCDIR([src/space.c])
24
AC_CONFIG_AUX_DIR([.])
lhausamm's avatar
lhausamm committed
25
AM_INIT_AUTOMAKE([subdir-objects])
Pedro Gonnet's avatar
Pedro Gonnet committed
26

27
# Add local macro collection.
Pedro Gonnet's avatar
Pedro Gonnet committed
28
29
AC_CONFIG_MACRO_DIR([m4])

30
31
32
33
# Stop default CFLAGS from anyone except the environment.
: ${CFLAGS=""}

# Generate header file.
Pedro Gonnet's avatar
Pedro Gonnet committed
34
35
AM_CONFIG_HEADER(config.h)

36
37
# Find and test the compiler.
AX_CHECK_ENABLE_DEBUG
Peter W. Draper's avatar
Peter W. Draper committed
38
AC_PROG_CC
39
40
AM_PROG_CC_C_O

41
# If debug is selected then we also define SWIFT_DEVELOP_MODE to control
Peter W. Draper's avatar
Typo    
Peter W. Draper committed
42
# any developer code options.
43
44
45
46
if test "x$ax_enable_debug" != "xno"; then
   AC_DEFINE([SWIFT_DEVELOP_MODE],1,[Enable developer code options])
fi

47
48
49
# Enable POSIX and platform extension preprocessor macros.
AC_USE_SYSTEM_EXTENSIONS

50
51
52
53
# Check for compiler version and vendor.
AX_COMPILER_VENDOR
AX_COMPILER_VERSION

54
55
56
#  Restrict support.
AC_C_RESTRICT

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
# 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"
      AC_MSG_RESULT([added GCC interprocedural optimization support])
   elif test "$ax_cv_c_compiler_vendor" = "clang"; then
      CFLAGS="$CFLAGS -emit-llvm"
      AC_MSG_RESULT([added LLVM interprocedural optimization support])
   else
      AC_MSG_WARN([Compiler does not support interprocedural optimization])
   fi
fi

87
88
# Check for MPI. Need to do this before characterising the compiler (C99 mode),
# as this changes the compiler.
89
90
91
92
# 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.
93
AC_ARG_ENABLE([mpi],
94
    [AS_HELP_STRING([--enable-mpi],
95
      [Compile with functionality for distributed-memory parallelism using MPI @<:@yes/no@:>@]
96
97
98
99
    )],
    [enable_mpi="$enableval"],
    [enable_mpi="yes"]
)
100
good_mpi="yes"
101
102
if test "$enable_mpi" = "yes"; then
    AX_MPI([CC="$MPICC" AC_DEFINE(HAVE_MPI, 1, [Define if you have the MPI library.]) ])
103
    MPI_LIBRARY="Unknown MPI"
104
105
106

    # Various MPI implementations require additional libraries when also using
    # threads. Use mpirun (on PATH) as that seems to be only command with
107
108
109
110
111
112
    # 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
113
    if test "$MPIRUN" = "notfound"; then
114
115
       # This may not be fatal (some systems do not allow mpirun on
       # development nodes)., so push on.
116
117
118
119
120
121
122
123
124
125
126
127
       AC_MSG_WARN([Cannot find mpirun command on PATH, thread support may not be correct])
    else
       # Special options we know about.
       # Intel: -mt_mpi
       # PLATFORM: -lmtmpi
       # OpenMPI: nothing, but library should be built correctly.
       # Set MPI_THREAD_LIBS and add to linker commands as necessary.
       AC_MSG_CHECKING([MPI threads options])
       version=`$MPIRUN -version 2>&1`
       case "$version" in
         *Intel*MPI*)
            MPI_THREAD_LIBS="-mt_mpi"
128
            MPI_LIBRARY="Intel MPI"
129
130
131
132
            AC_MSG_RESULT([Intel MPI])
         ;;
         *Platform*)
            MPI_THREAD_LIBS="-lmtmpi"
133
            MPI_LIBRARY="PLATFORM MPI"
134
135
136
137
            AC_MSG_RESULT([PLATFORM MPI])
         ;;
         *"Open MPI"*)
            MPI_THREAD_LIBS=""
138
            MPI_LIBRARY="Open MPI"
139
            AC_MSG_RESULT([Open MPI])
140
141
142
143
144
145
146
147
148
            #  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 $revision)])
                enable_mpi="yes (but with warning)"
            fi
149
150
151
152
153
154
155
156
         ;;
         *)
            MPI_THREAD_LIBS=""
            AC_MSG_RESULT([unknown])
         ;;
       esac
       AC_SUBST([MPI_THREAD_LIBS])
    fi
157
    AC_DEFINE_UNQUOTED([SWIFT_MPI_LIBRARY], ["$MPI_LIBRARY"], [The MPI library name, if known.])
158
fi
159
AM_CONDITIONAL([HAVEMPI],[test $enable_mpi = "yes"])
160

Peter W. Draper's avatar
Peter W. Draper committed
161
# Indicate that MPIRUN can be modified by an environment variable
162
163
AC_ARG_VAR(MPIRUN, Path to the mpirun command if non-standard)

164
165
166
# Add libtool support (now that CC is defined).
LT_INIT

167
# Need C99 and inline support.
Pedro Gonnet's avatar
Pedro Gonnet committed
168
AC_PROG_CC_C99
Peter W. Draper's avatar
Peter W. Draper committed
169
170
AC_C_INLINE

171
172
173
174
# 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
175
176
177
178
179
180
      # 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 $inline_EXTRA_FLAGS"
181
182
183
184
185
   elif test "$ax_cv_c_compiler_vendor" = "intel"; then
      CFLAGS="$CFLAGS -debug inline-debug-info"
   fi
fi

186
187
188
189
190
191
192
193
194
195
196
197
# Check if task debugging is on.
AC_ARG_ENABLE([task-debugging],
   [AS_HELP_STRING([--enable-task-debugging],
     [Store task timing information and generate task dump files @<:@yes/no@:>@]
   )],
   [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

198
199
200
201
202
203
204
205
206
207
# 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])
208
   LDFLAGS="$LDFLAGS -rdynamic"
209
210
fi

211
212
213
214
215
216
217
218
219
220
221
222
# 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

223
224
225
226
227
228
229
230
231
232
233
234
# 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

235
236
237
238
239
240
241
242
243
244
245
246
# 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

247
248
249
250
251
252
253
254
255
256
257
258
# 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

259
260
261
262
263
264
265
266
267
268
269
270
271
272
# 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

273
274
275
276
277
278
279
280
281
282
283
284
# 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

285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
# 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


300
# Define HAVE_POSIX_MEMALIGN if it works.
Pedro Gonnet's avatar
Pedro Gonnet committed
301
302
AX_FUNC_POSIX_MEMALIGN

303
304
# Only optimize if allowed, otherwise assume user will set CFLAGS as
# appropriate.
305
AC_ARG_ENABLE([optimization],
306
   [AS_HELP_STRING([--enable-optimization],
307
     [Enable compile time optimization flags for host @<:@yes/no@:>@]
308
309
310
   )],
   [enable_opt="$enableval"],
   [enable_opt="yes"]
311
312
)

313
314
315
316
317
318
319
320
321
322
323
324
325
326
#  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"]
)

HAVEVECTORIZATION=0

327
if test "$enable_opt" = "yes" ; then
328
329
330
331
332
333
334
335
336

   # Add code optimisation flags and tuning to host. This is a funny macro
   # that does not like CFLAGS being already set. Work around that as we have
   # at least set it to "", so it is set.
   ac_test_CFLAGS="no"
   old_CFLAGS="$CFLAGS"
   AX_CC_MAXOPT
   ac_test_CFLAGS="yes"
   CFLAGS="$old_CFLAGS $CFLAGS"
337
338
339
340
341
342
343
344
345
346

   # 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
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365


   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="$CFLAGS -fno-vectorize -fno-slp-vectorize"
         AC_MSG_RESULT([disabled clang vectorization])
      else
         AC_MSG_WARN([Do not know how to disable vectorization for this compiler])
      fi
   else
      AC_DEFINE([WITH_VECTORIZATION],1,[Enable vectorization])
      HAVEVECTORIZATION=1
   fi
366
fi
367
368
AM_CONDITIONAL([HAVEVECTORIZATION],[test -n "$HAVEVECTORIZATION"])

Peter W. Draper's avatar
Peter W. Draper committed
369

370
# Add address sanitizer options to flags, if requested. Only useful for GCC
371
# version 4.8 and later and clang.
372
AC_ARG_ENABLE([sanitizer],
373
   [AS_HELP_STRING([--enable-sanitizer],
374
     [Enable memory error detection using address sanitizer @<:@no/yes@:>@]
375
376
377
   )],
   [enable_san="$enableval"],
   [enable_san="no"]
378
379
)

380
381
382
383
if test "$enable_san" = "yes"; then
   if test "$ax_cv_c_compiler_vendor" = "gnu"; then
      AX_COMPARE_VERSION( $ax_cv_c_compiler_version, [ge], [4.8.0],
                          [enable_san="yes"], [enable_san="no"] )
384
385
386
387
388
389
   elif test "$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"
390
      AC_MSG_RESULT([added address sanitizer support])
391
392
   else
      AC_MSG_WARN([Compiler does not support address sanitizer option])
393
394
395
   fi
fi

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
# 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

423
# Autoconf stuff.
Pedro Gonnet's avatar
Pedro Gonnet committed
424
425
426
427
AC_PROG_INSTALL
AC_PROG_MAKE_SET
AC_HEADER_STDC

428
# Check for the libraries we will need.
Pedro Gonnet's avatar
Pedro Gonnet committed
429
430
AC_CHECK_LIB(m,sqrt,,AC_MSG_ERROR(something is wrong with the math library!))

431
432
433
# 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.
434
have_gsl="no"
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
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
452
      AC_CHECK_LIB([gslcblas],[cblas_dgemm],[have_gsl="yes"],[have_gsl="no"],$GSL_LIBS)
453
      if test "x$have_gsl" != "xno"; then
Peter W. Draper's avatar
Peter W. Draper committed
454
         AC_DEFINE([HAVE_LIBGSLCBLAS],1,[The GSL CBLAS library appears to be present.])
455
456
         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
457
            [have_gsl="no"],$GSL_LIBS)
458
459
460
461
462
463
464
465
466
467
      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!), $GSL_LIBS)
      have_gsl="yes"
   fi
468
469
470
471
   if test "$have_gsl" = "no"; then
      GSL_LIBS=""
      GSL_INCS=""
   fi
Peter W. Draper's avatar
Peter W. Draper committed
472
fi
473
474
475
AC_SUBST([GSL_LIBS])
AC_SUBST([GSL_INCS])
AM_CONDITIONAL([HAVEGSL],[test -n "$GSL_LIBS"])
476

477
# Check for pthreads.
478
AX_PTHREAD([LIBS="$PTHREAD_LIBS $LIBS" CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
479
    CC="$PTHREAD_CC" LDFLAGS="$LDFLAGS $PTHREAD_LIBS $LIBS"],
Pedro Gonnet's avatar
Pedro Gonnet committed
480
481
482
483
    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.]))
484

485
# Check whether POSIX thread barriers are implemented (e.g. OSX does not have them)
486
have_pthread_barrier="no"
487
AC_CHECK_LIB(pthread, pthread_barrier_init,
488
	     have_pthread_barrier="yes",
489
	     AC_MSG_WARN(POSIX implementation does not have barriers. SWIFT will use home-made ones.))
490
491
492
if test "x$have_pthread_barrier" == "xyes"; then
  AC_DEFINE([HAVE_PTHREAD_BARRIERS], [1], [The posix library implements barriers])
fi
493

494
495
496
497
# 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.))
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
# 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.
534
have_parmetis="no"
535
536
537
AC_ARG_WITH([parmetis],
    [AS_HELP_STRING([--with-parmetis=PATH],
       [root directory where ParMETIS is installed @<:@yes/no@:>@]
538
    )],
539
    [with_parmetis="$withval"],
540
541
542
543
    [with_parmetis="no"]
)

if test "x$with_parmetis" != "xno"; then
544
545

# Check if we have ParMETIS.
546
547
548
   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"
549
   else
550
551
      PARMETIS_LIBS="-lparmetis"
      PARMETIS_INCS=""
552
   fi
553
554
   AC_CHECK_LIB([parmetis],[ParMETIS_V3_RefineKway], [have_parmetis="yes"],
                [have_parmetis="no"], $PARMETIS_LIBS)
555
556
   if test "$have_parmetis" == "no"; then

557
558
# A build may use an external METIS library, check for that.

559
560
561
      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"
562
      else
563
564
         PARMETIS_LIBS="-lparmetis -lmetis"
         PARMETIS_INCS=""
565
      fi
566
      AC_CHECK_LIB([parmetis],[ParMETIS_V3_RefineKway], [have_parmetis="yes"],
567
                   [have_parmetis="no"], [$METIS_LIBS $PARMETIS_LIBS])
568
569

   fi
570
571
   if test "$have_parmetis" == "yes"; then
      AC_DEFINE([HAVE_PARMETIS],1,[The ParMETIS library is present.])
572
573
   else
      AC_MSG_ERROR("Failed to find a ParMETIS library")
574
   fi
575
fi
576

577
578
579
AC_SUBST([PARMETIS_LIBS])
AC_SUBST([PARMETIS_INCS])
AM_CONDITIONAL([HAVEPARMETIS],[test -n "$PARMETIS_LIBS"])
580

581
582
583
584
585
586
587
588
# 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])

589
590
# 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
591
# is given FFTW must be found.
592
# If FFTW is found, we check whether this is the threaded version.
593
594
595
596
597
598
599
600
601
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
602
603

   # Was FFTW's location specifically given?
604
   if test "x$with_fftw" != "xyes" -a "x$with_fftw" != "xtest" -a "x$with_fftw" != "x"; then
605
      FFTW_LIBS="-L$with_fftw/lib -lfftw3"
606
607
      FFTW_INCS="-I$with_fftw/include"
   else
608
      FFTW_LIBS="-lfftw3"
609
610
      FFTW_INCS=""
   fi
611

612
613
614
615
616
617
   #  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
618
   # FFTW was specified, check that it was a valid location.
619
620
621
622
623
   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"
624
   fi
625
626

   # FFTW was requested not to be used.
627
628
629
630
   if test "$have_fftw" = "no"; then
      FFTW_LIBS=""
      FFTW_INCS=""
   fi
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

   # 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=$FFTW_THREADED_INCS
	 have_fftw="yes - threaded"
      fi
   fi
656
657
658
659
fi
AC_SUBST([FFTW_LIBS])
AC_SUBST([FFTW_INCS])
AM_CONDITIONAL([HAVEFFTW],[test -n "$FFTW_LIBS"])
660

661
662
663
#  Check for -lprofiler usually part of the gperftools along with tcmalloc.
have_profiler="no"
AC_ARG_WITH([profiler],
664
   [AS_HELP_STRING([--with-profiler=PATH],
665
666
667
668
669
670
671
672
673
674
675
676
      [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],
677
    [have_profiler="yes"
678
679
680
681
682
683
684
685
686
687
688
689
690
691
      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"
692

693
694
695
#  Check for tcmalloc a fast malloc that is part of the gperftools.
have_tcmalloc="no"
AC_ARG_WITH([tcmalloc],
696
   [AS_HELP_STRING([--with-tcmalloc=PATH],
697
698
699
700
701
      [use tcmalloc library or specify the directory with lib @<:@yes/no@:>@]
   )],
   [with_tcmalloc="$withval"],
   [with_tcmalloc="no"]
)
702
703
704
705
if test "x$with_tcmalloc" != "xno" -a "x$have_special_allocator" != "xno"; then
   AC_MSG_ERROR("Cannot activate more than one alternative malloc library")
fi

706
if test "x$with_tcmalloc" != "xno"; then
Peter W. Draper's avatar
Peter W. Draper committed
707
   if test "x$with_tcmalloc" != "xyes" -a "x$with_tcmalloc" != "x"; then
708
      tclibs="-L$with_tcmalloc -ltcmalloc"
709
   else
710
      tclibs="-ltcmalloc"
711
712
   fi
   AC_CHECK_LIB([tcmalloc],[tc_cfree],[have_tcmalloc="yes"],[have_tcmalloc="no"],
713
                $tclibs)
714
715
716

   #  Could just have the minimal version.
   if test "$have_tcmalloc" = "no"; then
Peter W. Draper's avatar
Peter W. Draper committed
717
      if test "x$with_tcmalloc" != "xyes" -a "x$with_tcmalloc" != "x"; then
718
         tclibs="-L$with_tcmalloc -ltcmalloc_minimal"
719
      else
720
         tclibs="-ltcmalloc_minimal"
721
722
      fi
      AC_CHECK_LIB([tcmalloc],[tc_cfree],[have_tcmalloc="yes"],[have_tcmalloc="no"],
723
                   $tclibs)
724
   fi
Pedro Gonnet's avatar
Pedro Gonnet committed
725

726
727
728
   if test "$have_tcmalloc" = "yes"; then
      TCMALLOC_LIBS="$tclibs"

729
      AC_DEFINE([HAVE_TCMALLOC],1,[The tcmalloc library appears to be present.])
730

731
      have_special_allocator="tcmalloc"
732
733

      # Prevent compilers that replace the calls with built-ins (GNU 99) from doing so.
734
735
736
737
738
739
      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

740
741
   else
      TCMALLOC_LIBS=""
742
743
744
745
746
   fi
fi
AC_SUBST([TCMALLOC_LIBS])
AM_CONDITIONAL([HAVETCMALLOC],[test -n "$TCMALLOC_LIBS"])

Peter W. Draper's avatar
Peter W. Draper committed
747
748
749
#  Check for jemalloc another fast malloc that is good with contention.
have_jemalloc="no"
AC_ARG_WITH([jemalloc],
750
   [AS_HELP_STRING([--with-jemalloc=PATH],
Peter W. Draper's avatar
Peter W. Draper committed
751
752
753
754
755
      [use jemalloc library or specify the directory with lib @<:@yes/no@:>@]
   )],
   [with_jemalloc="$withval"],
   [with_jemalloc="no"]
)
756
757
758
759
if test "x$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
760
761
762
763
764
765
766
767
768
769
770
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"
771

772
      AC_DEFINE([HAVE_JEMALLOC],1,[The jemalloc library appears to be present.])
773

774
      have_special_allocator="jemalloc"
775
776

      # Prevent compilers that replace the regular calls with built-ins (GNU 99) from doing so.
777
778
779
780
781
782
      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
783
784
785
786
787
788
789
   else
      JEMALLOC_LIBS=""
   fi
fi
AC_SUBST([JEMALLOC_LIBS])
AM_CONDITIONAL([HAVEJEMALLOC],[test -n "$JEMALLOC_LIBS"])

790
791
792
#  Check for tbbmalloc, Intel's fast and parallel allocator
have_tbbmalloc="no"
AC_ARG_WITH([tbbmalloc],
793
   [AS_HELP_STRING([--with-tbbmalloc=PATH],
794
795
796
797
798
799
800
      [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
801
802
fi

803
804
805
806
807
808
809
810
811
812
813
814
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"

815
      AC_DEFINE([HAVE_TBBMALLOC],1,[The TBBmalloc library appears to be present.])
816

817
      have_special_allocator="TBBmalloc"
818
819
820
821
822
823
824
825
826
827
828

      # 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
829
fi
830
831
AC_SUBST([TBBMALLOC_LIBS])
AM_CONDITIONAL([HAVETBBMALLOC],[test -n "$TBBMALLOC_LIBS"])
Peter W. Draper's avatar
Peter W. Draper committed
832

833
# Check for HDF5. This is required.
834
AX_LIB_HDF5
835
836
837
838
if test "$with_hdf5" != "yes"; then
    AC_MSG_ERROR([Could not find a working HDF5 library])
fi

839
840
841
# 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.
842
843
have_parallel_hdf5="no"
if test "$with_hdf5" = "yes"; then
844
845
    AC_ARG_ENABLE([parallel-hdf5],
       [AS_HELP_STRING([--enable-parallel-hdf5],
846
         [Enable parallel HDF5 library MPI functions if available. @<:@yes/no@:>@]
847
848
849
850
851
852
853
       )],
       [enable_parallel_hdf5="$enableval"],
       [enable_parallel_hdf5="yes"]
    )

    if test "$enable_parallel_hdf5" = "yes"; then
        AC_MSG_CHECKING([for HDF5 parallel support])
854
855

	# Check if the library is capable, the header should define H5_HAVE_PARALLEL.
856
857
858
859
860
861
862

        AC_COMPILE_IFELSE([AC_LANG_SOURCE([[
        #include "hdf5.h"
        #ifndef H5_HAVE_PARALLEL
        # error macro not defined
        #endif
        ]])], [parallel="yes"], [parallel="no"])
863
864
865
866
867
        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)
868
869
870
871
    fi
fi
AM_CONDITIONAL([HAVEPARALLELHDF5],[test "$have_parallel_hdf5" = "yes"])

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
# 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
      VELOCIRAPTOR_LIBS="-L$with_velociraptor -lstf -lstdc++ -lhdf5_cpp"
      CFLAGS="$CFLAGS -fopenmp"
   else
      VELOCIRAPTOR_LIBS=""
   fi

   have_velociraptor="yes"

   AC_CHECK_LIB(
      [stf],
      [InitVelociraptor],
      [AC_DEFINE([HAVE_VELOCIRAPTOR],1,[The VELOCIraptor library appears to be present.])],
      [AC_MSG_ERROR(Cannot find VELOCIraptor library at $with_velociraptor)],
      [$VELOCIRAPTOR_LIBS $HDF5_LDFLAGS $HDF5_LIBS $GSL_LIBS]
   )
fi
AC_SUBST([VELOCIRAPTOR_LIBS])
AM_CONDITIONAL([HAVEVELOCIRAPTOR],[test -n "$VELOCIRAPTOR_LIBS"])

904
905
906
907
# 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.]))

908
# Check for setaffinity.
909
AC_CHECK_FUNC(pthread_setaffinity_np, AC_DEFINE([HAVE_SETAFFINITY],[1],
Pedro Gonnet's avatar
Pedro Gonnet committed
910
    [Defined if pthread_setaffinity_np exists.]) )
911
912
AM_CONDITIONAL(HAVESETAFFINITY,
    [test "$ac_cv_func_pthread_setaffinity_np" = "yes"])
913

914
have_numa="no"
915
916
917
918
919
if test "$ac_cv_func_pthread_setaffinity_np" = "yes"; then
  # Check for libnuma.
  AC_CHECK_HEADER([numa.h])
  if test "$ac_cv_header_numa_h" = "yes"; then
    AC_CHECK_LIB([numa], [numa_available])
920
    have_numa="yes"
921
922
  fi
fi
Angus Lepper's avatar
Angus Lepper committed
923

924

Pedro Gonnet's avatar
Pedro Gonnet committed
925
# Check for Intel and PowerPC intrinsics header optionally used by vector.h.
926
AC_CHECK_HEADERS([immintrin.h])
Pedro Gonnet's avatar
Pedro Gonnet committed
927
AC_CHECK_HEADERS([altivec.h])
928

929
# Check for timing functions needed by cycle.h.
Pedro Gonnet's avatar
Pedro Gonnet committed
930
931
AC_HEADER_TIME
AC_CHECK_HEADERS([sys/time.h c_asm.h intrinsics.h mach/mach_time.h])
932
933
934
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
935
936
937
938
939
#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
940
941
AC_LINK_IFELSE([AC_LANG_PROGRAM(
[[#ifdef HAVE_INTRINSICS_H
Pedro Gonnet's avatar
Pedro Gonnet committed
942
#include <intrinsics.h>
943
#endif]],
944
945
[[_rtc()]])],
[AC_DEFINE(HAVE__RTC,1,[Define if you have the UNICOS _rtc() intrinsic.])],[rtc_ok=no])
Pedro Gonnet's avatar
Pedro Gonnet committed
946
947
AC_MSG_RESULT($rtc_ok)

948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
# Special timers for the ARM v7 and ARM v8 platforms (taken from FFTW-3 to match their cycle.h)
AC_ARG_ENABLE(armv8-pmccntr-el0, [AC_HELP_STRING([--enable-armv8-pmccntr-el0],[enable the cycle counter on ARMv8 via the PMCCNTR_EL0 register])], have_armv8pmccntrel0=$enableval)
if test "$have_armv8pmccntrel0"x = "yes"x; then
	AC_DEFINE(HAVE_ARMV8_PMCCNTR_EL0,1,[Define if you have enabled the PMCCNTR_EL0 cycle counter on ARMv8])
fi

AC_ARG_ENABLE(armv8-cntvct-el0, [AC_HELP_STRING([--enable-armv8-cntvct-el0],[enable the cycle counter on ARMv8 via the CNTVCT_EL0 register])], have_armv8cntvctel0=$enableval)
if test "$have_armv8cntvctel0"x = "yes"x; then
	AC_DEFINE(HAVE_ARMV8_CNTVCT_EL0,1,[Define if you have enabled the CNTVCT_EL0 cycle counter on ARMv8])
fi

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

969
# Add warning flags by default, if these can be used. Option =error adds
970
# -Werror to GCC, clang and Intel.  Note do this last as compiler tests may
971
# become errors, if that's an issue don't use CFLAGS for these, use an AC_SUBST().
972
973
AC_ARG_ENABLE([compiler-warnings],
   [AS_HELP_STRING([--enable-compiler-warnings],
974
     [Enable compile time warning flags, if compiler is known @<:@error/no/yes)@:>@]
975
976
   )],
   [enable_warn="$enableval"],
977
   [enable_warn="error"]
978
979
)
if test "$enable_warn" != "no"; then
980

981
    # AX_CFLAGS_WARN_ALL does not give good warning flags for the Intel compiler
982
    # We will do this by hand instead and only default to the macro for unknown compilers
983
984
    case "$ax_cv_c_compiler_vendor" in
          gnu | clang)
985
             CFLAGS="$CFLAGS -Wall -Wextra -Wno-unused-parameter -Wshadow"
986
          ;;
987
	  intel)
988
             CFLAGS="$CFLAGS -w2 -Wunused-variable -Wshadow"
989
          ;;
990
991
992
	  *)
	     AX_CFLAGS_WARN_ALL
	  ;;
993
    esac
994

995
    # Add a "choke on warning" flag if it exists
996
    if test "$enable_warn" = "error"; then
997
       case "$ax_cv_c_compiler_vendor" in
998
          intel | gnu | clang)
999
1000
1001
             CFLAGS="$CFLAGS -Werror"
          ;;
       esac
1002
    fi
1003
1004
1005
1006
1007

    # 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;}])])
1008
1009
fi

1010
1011
# Various package configuration options.

1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
# 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>],
		[Master switch for subgrid methods. Inexperienced user should start from here @<:@none, GEAR, EAGLE default: none@:>@]
	)],
	[with_subgrid="$withval"],
	[with_subgrid=none]
)

# Default values
with_subgrid_cooling=none
with_subgrid_chemistry=none
with_subgrid_hydro=none

case "$with_subgrid" in
   yes)
      AC_MSG_ERROR([Invalid option. A subgrid model must be chosen.])
   ;;
   none)
   ;;
   GEAR)
	with_subgrid_cooling=grackle
	with_subgrid_chemistry=GEAR
	with_subgrid_hydro=gadget2
   ;;
   EAGLE)
	with_subgrid_cooling=EAGLE
	with_subgrid_chemistry=EAGLE
	with_subgrid_hydro=gadget2
   ;;
   *)
      AC_MSG_ERROR([Unknown subgrid choice: $with_subgrid])
   ;;
esac

1050
1051
1052
1053
1054
1055
1056
1057
# Gravity scheme.
AC_ARG_WITH([gravity],
   [AS_HELP_STRING([--with-gravity=<scheme>],
      [Gravity scheme to use @<:@default, with-potential, default: default@:>@]
   )],
   [with_gravity="$withval"],
   [with_gravity="default"]
)
1058

1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
case "$with_gravity" in
   with-potential)
      AC_DEFINE([POTENTIAL_GRAVITY], [1], [Gravity scheme with potential calculation])
   ;;
   default)
      AC_DEFINE([DEFAULT_GRAVITY], [1], [Default gravity scheme])
   ;;
   *)
      AC_MSG_ERROR([Unknown gravity scheme: $with_gravity])
   ;;
esac
1070

1071
1072
1073
# Hydro scheme.
AC_ARG_WITH([hydro],
   [AS_HELP_STRING([--with-hydro=<scheme>],
1074
      [Hydro dynamics to use @<:@gadget2, minimal, pressure-entropy, pressure-energy, default, gizmo-mfv, gizmo-mfm, shadowfax, planetary, debug default: gadget2@:>@]
1075
1076
1077
1078
   )],
   [with_hydro="$withval"],
   [with_hydro="gadget2"]
)
1079
1080
1081
1082
1083
1084
1085
1086
1087

if test "$with_subgrid" != "none"; then
   if test "$with_hydro" != "gadget2"; then
      AC_MSG_ERROR([Cannot provide with-subgrid and with-hydro together])
   else
      with_hydro="$with_subgrid_hydro"
   fi
fi

1088
1089
case "$with_hydro" in
   gadget2)
1090
      AC_DEFINE([GADGET2_SPH], [1], [Gadget-2 SPH])
1091
   ;;
1092
1093
   minimal)
      AC_DEFINE([MINIMAL_SPH], [1], [Minimal SPH])
1094
   ;;
1095
   pressure-entropy)
1096
      AC_DEFINE([HOPKINS_PE_SPH], [1], [Pressure-Entropy SPH])
1097
   ;;
1098
1099
1100
   pressure-energy)
      AC_DEFINE([HOPKINS_PU_SPH], [1], [Pressure-Energy SPH])
   ;;
1101
1102
   default)
      AC_DEFINE([DEFAULT_SPH], [1], [Default SPH])
1103
   ;;
1104
1105
   gizmo-mfv)
      AC_DEFINE([GIZMO_MFV_SPH], [1], [GIZMO MFV SPH])
1106
   ;;
1107
1108
   gizmo-mfm)
      AC_DEFINE([GIZMO_MFM_SPH], [1], [GIZMO MFM SPH])
1109
   ;;
1110
1111
   shadowfax)
      AC_DEFINE([SHADOWFAX_SPH], [1], [Shadowfax SPH])
1112
   ;;
1113
1114
   planetary)
      AC_DEFINE([PLANETARY_SPH], [1], [Planetary SPH])
1115
   ;;
1116

1117

1118
   *)
1119
      AC_MSG_ERROR([Unknown hydrodynamics scheme: $with_hydro])
1120
1121
1122
   ;;
esac

1123
1124
1125
# Check if debugging interactions is switched on.
AC_ARG_ENABLE([debug-interactions],
   [AS_HELP_STRING([--enable-debug-interactions],
1126
     [Activate interaction debugging, logging a maximum of @<:@N@:>@ neighbours. Defaults to 256 if no value set.]
1127
1128
1129
1130
   )],
   [enable_debug_interactions="$enableval"],
   [enable_debug_interactions="no"]
)
1131
if test "$enable_debug_interactions" != "no"; then
1132
  if test "$with_hydro" = "gadget2"; then
1133
1134
1135
1136
1137
1138
1139
1140
      AC_DEFINE([DEBUG_INTERACTIONS_SPH],1,[Enable interaction debugging])
    if test "$enable_debug_interactions" == "yes"; then
      AC_DEFINE([MAX_NUM_OF_NEIGHBOURS],256,[The maximum number of particle neighbours to be logged])
      [enable_debug_interactions="yes (Logging up to 256 neighbours)"]
    else
      AC_DEFINE_UNQUOTED([MAX_NUM_OF_NEIGHBOURS], [$enableval] ,[The maximum number of particle neighbours to be logged])
      [enable_debug_interactions="yes (Logging up to $enableval neighbours)"]
    fi
1141
  else
1142
1143
1144
1145
    [enable_debug_interactions="no (only available for gadget2 hydro scheme)"]
  fi
fi

1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
# SPH Kernel function
AC_ARG_WITH([kernel],
   [AS_HELP_STRING([--with-kernel=<kernel>],
      [Kernel function to use @<:@cubic-spline, quartic-spline, quintic-spline, wendland-C2, wendland-C4, wendland-C6 default: cubic-spline@:>@]
   )],
   [with_kernel="$withval"],
   [with_kernel="cubic-spline"]
)
case "$with_kernel" in
   cubic-spline)
      AC_DEFINE([CUBIC_SPLINE_KERNEL], [1], [Cubic spline kernel])
1157
   ;;
1158
1159
   quartic-spline)
      AC_DEFINE([QUARTIC_SPLINE_KERNEL], [1], [Quartic spline kernel])
1160
   ;;
1161
1162
   quintic-spline)
      AC_DEFINE([QUINTIC_SPLINE_KERNEL], [1], [Quintic spline kernel])
1163
   ;;
1164
1165
   wendland-C2)
      AC_DEFINE([WENDLAND_C2_KERNEL], [1], [Wendland-C2 kernel])
1166
   ;;
1167
1168
   wendland-C4)
      AC_DEFINE([WENDLAND_C4_KERNEL], [1], [Wendland-C4 kernel])
1169
   ;;
1170
1171
   wendland-C6)
      AC_DEFINE([WENDLAND_C6_KERNEL], [1], [Wendland-C6 kernel])
1172
   ;;
1173
1174
1175
1176
1177
   *)
      AC_MSG_ERROR([Unknown kernel function: $with_kernel])
   ;;
esac

1178
1179
#  Dimensionality of the hydro scheme.
AC_ARG_WITH([hydro-dimension],
1180
1181
   [AS_HELP_STRING([--with-hydro-dimension=<dim>],
      [dimensionality of problem @<:@3/2/1 default: 3@:>@]
1182
1183
1184
1185
1186
1187
   )],
   [with_dimension="$withval"],
   [with_dimension="3"]
)
case "$with_dimension" in
   1)
1188
      AC_DEFINE([HYDRO_DIMENSION_1D], [1], [1D solver])
1189
   ;;
1190
   2)
1191
      AC_DEFINE([HYDRO_DIMENSION_2D], [2], [2D solver])
1192
   ;;
1193
   3)
1194
      AC_DEFINE([HYDRO_DIMENSION_3D], [3], [3D solver])
1195
   ;;
1196
1197
1198
1199
1200
   *)
      AC_MSG_ERROR([Dimensionality must be 1, 2 or 3])
   ;;
esac

1201
1202
1203
#  Equation of state
AC_ARG_WITH([equation-of-state],
   [AS_HELP_STRING([--with-equation-of-state=<EoS>],
1204
      [equation of state @<:@ideal-gas, isothermal-gas, planetary default: ideal-gas@:>@]
1205
1206
1207
1208
1209
1210
1211
   )],
   [with_eos="$withval"],
   [with_eos="ideal-gas"]
)
case "$with_eos" in
   ideal-gas)
      AC_DEFINE([EOS_IDEAL_GAS], [1], [Ideal gas equation of state])
1212
   ;;
1213
1214
   isothermal-gas)
      AC_DEFINE([EOS_ISOTHERMAL_GAS], [1], [Isothermal gas equation of state])
1215
   ;;
1216
   planetary)
1217
      AC_DEFINE([EOS_PLANETARY], [1], [All planetary equations of state])
1218
   ;;
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
   *)
      AC_MSG_ERROR([Unknown equation of state: $with_eos])
   ;;
esac

#  Adiabatic index
AC_ARG_WITH([adiabatic-index],
   [AS_HELP_STRING([--with-adiabatic-index=<gamma>],
      [adiabatic index @<:@5/3, 7/5, 4/3, 2 default: 5/3@:>@]
   )],
   [with_gamma="$withval"],
   [with_gamma="5/3"]
)
case "$with_gamma" in
   5/3)
      AC_DEFINE([HYDRO_GAMMA_5_3], [5./3.], [Adiabatic index is 5/3])
1235
   ;;
1236
1237
   7/5)
      AC_DEFINE([HYDRO_GAMMA_7_5], [7./5.], [Adiabatic index is 7/5])
1238
   ;;
1239
1240
   4/3)
      AC_DEFINE([HYDRO_GAMMA_4_3], [4./3.], [Adiabatic index is 4/3])
1241
   ;;
1242
1243
   2)
      AC_DEFINE([HYDRO_GAMMA_2_1], [2.], [Adiabatic index is 2])
1244
   ;;
1245
1246
1247
1248
1249
   *)
      AC_MSG_ERROR([Unknown adiabatic index: $with_gamma])
   ;;
esac

1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
#  Riemann solver
AC_ARG_WITH([riemann-solver],
   [AS_HELP_STRING([--with-riemann-solver=<solver>],
      [riemann solver (gizmo-sph only) @<:@none, exact, trrs, hllc, default: none@:>@]
   )],
   [with_riemann="$withval"],
   [with_riemann="none"]
)
case "$with_riemann" in
   none)
      AC_DEFINE([RIEMANN_SOLVER_NONE], [1], [No Riemann solver])
1261
   ;;
1262
1263
   exact)
      AC_DEFINE([RIEMANN_SOLVER_EXACT], [1], [Exact Riemann solver])
1264
   ;;
1265
1266
   trrs)
      AC_DEFINE([RIEMANN_SOLVER_TRRS], [1], [Two Rarefaction Riemann Solver])
1267
   ;;
1268
1269
   hllc)
      AC_DEFINE([RIEMANN_SOLVER_HLLC], [1], [Harten-Lax-van Leer-Contact Riemann solver])
1270
   ;;
1271
1272
1273
1274
1275
   *)
      AC_MSG_ERROR([Unknown Riemann solver: $with_riemann])
   ;;
esac

1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
# 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"

   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 $GRACKLE_INCS $FCLIBS]
   )
fi
AC_SUBST([GRACKLE_LIBS])
AC_SUBST([GRACKLE_INCS])
AM_CONDITIONAL([HAVEGRACKLE],[test -n "$GRACKLE_LIBS"])

1312
1313
1314
#  Cooling function
AC_ARG_WITH([cooling],
   [AS_HELP_STRING([--with-cooling=<function>],
lhausamm's avatar
lhausamm committed
1315
      [cooling function @<:@none, const-du, const-lambda, EAGLE, grackle, grackle1, grackle2, grackle3 default: none@:>@]
1316
1317
1318
1319
   )],
   [with_cooling="$withval"],
   [with_cooling="none"]
)
1320
1321
1322
1323
1324
1325
1326
1327
1328

if test "$with_subgrid" != "none"; then
   if test "$with_cooling" != "none"; then
      AC_MSG_ERROR([Cannot provide with-subgrid and with-cooling together])
   else
      with_cooling="$with_subgrid_cooling"
   fi
fi

1329
1330
1331
case "$with_cooling" in
   none)
      AC_DEFINE([COOLING_NONE], [1], [No cooling function])
1332
   ;;
1333
1334
   const-du)
      AC_DEFINE([COOLING_CONST_DU], [1], [Const du/dt cooling function])
1335
   ;;
1336
1337
   const-lambda)
      AC_DEFINE([COOLING_CONST_LAMBDA], [1], [Const Lambda cooling function])
1338
   ;;
1339
1340
   grackle)
      AC_DEFINE([COOLING_GRACKLE], [1], [Cooling via the grackle library])
Matthieu Schaller's avatar
Matthieu Schaller committed
1341
      AC_DEFINE([COOLING_GRACKLE_MODE], [0], [Grackle chemistry network, mode 0])
Jacob Kegerreis 's avatar
Jacob Kegerreis committed
1342
   ;;
1343
1344
   grackle1)
      AC_DEFINE([COOLING_GRACKLE], [1], [Cooling via the grackle library])
Matthieu Schaller's avatar
Matthieu Schaller committed
1345
      AC_DEFINE([COOLING_GRACKLE_MODE], [1], [Grackle chemistry network, mode 1])
1346
   ;;
1347
1348
   grackle2)
      AC_DEFINE([COOLING_GRACKLE], [1], [Cooling via the grackle library])
Matthieu Schaller's avatar
Matthieu Schaller committed
1349
      AC_DEFINE([COOLING_GRACKLE_MODE], [2], [Grackle chemistry network, mode 2])
Jacob Kegerreis 's avatar
Jacob Kegerreis committed
1350
   ;;
1351
1352
   grackle3)
      AC_DEFINE([COOLING_GRACKLE], [1], [Cooling via the grackle library])
Matthieu Schaller's avatar
Matthieu Schaller committed
1353
      AC_DEFINE([COOLING_GRACKLE_MODE], [3], [Grackle chemistry network, mode 3])
1354
   ;;
1355
1356
   EAGLE)
      AC_DEFINE([COOLING_EAGLE], [1], [Cooling following the EAGLE model])
1357
   ;;
1358
1359
1360
1361
1362
   *)
      AC_MSG_ERROR([Unknown cooling function: $with_cooling])
   ;;
esac

lhausamm's avatar
lhausamm committed
1363
1364
1365
#  chemistry function
AC_ARG_WITH([chemistry],
   [AS_HELP_STRING([--with-chemistry=<function>],
1366
      [chemistry function @<:@none, GEAR, EAGLE default: none@:>@]
lhausamm's avatar
lhausamm committed
1367
1368
1369
1370
   )],
   [with_chemistry="$withval"],
   [with_chemistry="none"]
)
1371
1372
1373
1374
1375
1376
1377
1378
1379

if test "$with_subgrid" != "none"; then
   if test "$with_chemistry" != "none"; then
      AC_MSG_ERROR([Cannot provide with-subgrid and with-chemistry together])
   else
      with_chemistry="$with_subgrid_chemistry"
   fi
fi

lhausamm's avatar
lhausamm committed
1380
1381
1382
case "$with_chemistry" in
   none)
      AC_DEFINE([CHEMISTRY_NONE], [1], [No chemistry function])
1383
   ;;
1384
   GEAR)
1385
      AC_DEFINE([CHEMISTRY_GEAR], [1], [Chemistry taken from the GEAR model])
1386
   ;;
1387
1388
   EAGLE)
      AC_DEFINE([CHEMISTRY_EAGLE], [1], [Chemistry taken from the EAGLE model])
1389
   ;;
lhausamm's avatar
lhausamm committed
1390
1391
1392
1393
1394
   *)
      AC_MSG_ERROR([Unknown chemistry function: $with_chemistry])
   ;;
esac

1395
1396
1397
#  External potential
AC_ARG_WITH([ext-potential],
   [AS_HELP_STRING([--with-ext-potential=<pot>],
1398
      [external potential @<:@none, point-mass, point-mass-ring, point-mass-softened, isothermal, softened-isothermal, disc-patch, sine-wave, default: none@:>@]
1399
1400
1401
1402
1403
1404
1405
   )],
   [with_potential="$withval"],
   [with_potential="none"]
)
case "$with_potential" in
   none)
      AC_DEFINE([EXTERNAL_POTENTIAL_NONE], [1], [No external potential])