summaryrefslogtreecommitdiffstats
path: root/m4/aclocal_fc.m4
blob: ea773b868c25d37f30d483dec1f461c1f6ef3143 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
dnl -------------------------------------------------------------------------
dnl -------------------------------------------------------------------------
dnl
dnl Copyright by the Board of Trustees of the University of Illinois.
dnl All rights reserved.
dnl
dnl This file is part of HDF5.  The full HDF5 copyright notice, including
dnl terms governing use, modification, and redistribution, is contained in
dnl the files COPYING and Copyright.html.  COPYING can be found at the root
dnl of the source code distribution tree; Copyright.html can be found at the
dnl root level of an installed copy of the electronic HDF5 document set and
dnl is linked from the top-level documents page.  It can also be found at
dnl http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have
dnl access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu.
dnl
dnl -------------------------------------------------------------------------
dnl -------------------------------------------------------------------------

dnl *********************************
dnl PURPOSE
dnl  Contains Macros for HDF5 Fortran
dnl *********************************
dnl
dnl Special characteristics that have no autoconf counterpart but that
dnl we need as part of the C++ support.  To distinquish these, they
dnl have a [PAC] prefix.
dnl
dnl -------------------------------------------------------------------------
dnl
dnl PAC_FC_SEARCH_LIST - expands to a whitespace separated list of modern
dnl fortran compilers for use with AC_PROG_FC that is more suitable for HPC
dnl software packages
AC_DEFUN([PAC_FC_SEARCH_LIST],
         [gfortran ifort pgf90 pathf90 pathf95 xlf90 xlf95 xlf2003 f90 epcf90 f95 fort lf95 g95 ifc efc gfc])
dnl 
dnl PAC_PROG_FC([COMPILERS])
dnl
dnl COMPILERS is a space separated list of Fortran compilers to search for.
dnl
dnl Compilers are ordered by
dnl  1. F90, F95, F2003
dnl  2. Good/tested native compilers, bad/untested native compilers
dnl  3. Wrappers around f2c go last.
dnl
dnl frt is the Fujitsu Fortran compiler.
dnl pgf90 are the Portland Group F90 compilers.
dnl xlf/xlf90/xlf95/xlf2003 are IBM (AIX) F90/F95/F2003 compilers.
dnl lf95 is the Lahey-Fujitsu compiler.
dnl fl32 is the Microsoft Fortran "PowerStation" compiler.
dnl epcf90 is the "Edinburgh Portable Compiler" F90.
dnl fort is the Compaq Fortran 90 (now 95) compiler for Tru64 and Linux/Alpha.
dnl pathf90 is the Pathscale Fortran 90 compiler
dnl ifort is another name for the Intel f90 compiler
dnl efc - An older Intel compiler (?)
dnl ifc - An older Intel compiler
dnl fc  - A compiler on some unknown system.  This has been removed because
dnl       it may also be the name of a command for something other than
dnl       the Fortran compiler (e.g., fc=file system check!)
dnl gfortran - The GNU Fortran compiler (not the same as g95) 
dnl gfc - An alias for gfortran recommended in cygwin installations
dnl NOTE: this macro suffers from a basically intractable "expanded before it
dnl was required" problem when libtool is also used 
dnl [1] MPICH.org
dnl

dnl See if the fortran compiler supports the intrinsic module "ISO_FORTRAN_ENV"

AC_DEFUN([PAC_PROG_FC_ISO_FORTRAN_ENV],[
  HAVE_ISO_FORTRAN_ENV="no"
  AC_MSG_CHECKING([if Fortran compiler supports intrinsic module ISO_FORTRAN_ENV])
  AC_LINK_IFELSE([AC_LANG_SOURCE([ 
   PROGRAM main
     USE, INTRINSIC :: ISO_FORTRAN_ENV
   END PROGRAM
  ])],[AC_MSG_RESULT([yes])
     	HAVE_ISO_FORTRAN_ENV="yes"],
      [AC_MSG_RESULT([no])])
])

dnl See if the fortran compiler supports the intrinsic function "SIZEOF"

AC_DEFUN([PAC_PROG_FC_SIZEOF],[
  HAVE_SIZEOF_FORTRAN="no"
  AC_MSG_CHECKING([if Fortran compiler supports intrinsic SIZEOF])
  AC_LINK_IFELSE([AC_LANG_SOURCE([ 
   PROGRAM main
     i = sizeof(x)
   END PROGRAM
  ])],[AC_MSG_RESULT([yes])
     	HAVE_SIZEOF_FORTRAN="yes"],
      [AC_MSG_RESULT([no])])
])

dnl See if the fortran compiler supports the intrinsic function "C_SIZEOF"

AC_DEFUN([PAC_PROG_FC_C_SIZEOF],[
  HAVE_C_SIZEOF_FORTRAN="no"
  AC_MSG_CHECKING([if Fortran compiler supports intrinsic C_SIZEOF])
  AC_LINK_IFELSE([AC_LANG_SOURCE([ 
   PROGRAM main
     USE ISO_C_BINDING
     INTEGER(C_INT) :: a
     INTEGER(C_SIZE_T) :: result
     result = C_SIZEOF(a)
   END PROGRAM
  ])], [AC_MSG_RESULT([yes])
     	HAVE_C_SIZEOF_FORTRAN="yes"],
     [AC_MSG_RESULT([no])])
])

dnl See if the fortran compiler supports the intrinsic function "STORAGE_SIZE"

AC_DEFUN([PAC_PROG_FC_STORAGE_SIZE],[
  HAVE_STORAGE_SIZE_FORTRAN="no"
  AC_MSG_CHECKING([if Fortran compiler supports intrinsic STORAGE_SIZE])
  AC_LINK_IFELSE([AC_LANG_SOURCE([
   PROGRAM main
     INTEGER :: a
     INTEGER :: result
     result = STORAGE_SIZE(a)
   END PROGRAM
  ])], [AC_MSG_RESULT([yes])
     	HAVE_STORAGE_SIZE_FORTRAN="yes"],
     [AC_MSG_RESULT([no])])

])

dnl Check to see C_LONG_DOUBLE is available, and if it 
dnl is different from C_DOUBLE

AC_DEFUN([PAC_PROG_FC_HAVE_C_LONG_DOUBLE],[
  FORTRAN_HAVE_C_LONG_DOUBLE="no"	
  AC_MSG_CHECKING([if Fortran C_LONG_DOUBLE is valid])
  
  AC_COMPILE_IFELSE([AC_LANG_SOURCE([
     MODULE type_mod
       USE ISO_C_BINDING
       INTERFACE h5t	
         MODULE PROCEDURE h5t_c_double
         MODULE PROCEDURE h5t_c_long_double
       END INTERFACE
     CONTAINS
       SUBROUTINE h5t_c_double(r)
         REAL(KIND=C_DOUBLE) :: r
       END SUBROUTINE h5t_c_double
       SUBROUTINE h5t_c_long_double(d)
         REAL(KIND=C_LONG_DOUBLE) :: d
       END SUBROUTINE h5t_c_long_double
     END MODULE type_mod
     PROGRAM main
       USE ISO_C_BINDING
       USE type_mod
       REAL(KIND=C_DOUBLE)      :: r
       REAL(KIND=C_LONG_DOUBLE) :: d
       CALL h5t(r)
       CALL h5t(d)
     END PROGRAM main
    ])], [AC_MSG_RESULT([yes]) 
            FORTRAN_HAVE_C_LONG_DOUBLE="yes"], 
         [AC_MSG_RESULT([no])])
])

dnl Checking if the compiler supports the required Fortran 2003 features and
dnl disable Fortran 2003 if it does not.

AC_DEFUN([PAC_PROG_FC_HAVE_F2003_REQUIREMENTS],[
   AC_MSG_CHECKING([if Fortran compiler version compatible with Fortran 2003 HDF])
dnl --------------------------------------------------------------------
dnl Default for FORTRAN 2003 compliant compilers
dnl
    HAVE_FORTRAN_2003="no"
    HAVE_F2003_REQUIREMENTS="no"
    AC_LINK_IFELSE([AC_LANG_PROGRAM([],[

        USE iso_c_binding
        IMPLICIT NONE
        TYPE(C_PTR) :: ptr
        TYPE(C_FUNPTR) :: funptr
        CHARACTER(LEN=80, KIND=c_char), TARGET :: ichr

        ptr = C_LOC(ichr(1:1))

        ])],[AC_MSG_RESULT([yes])
        HAVE_F2003_REQUIREMENTS=[yes]], 
      [AC_MSG_RESULT([no])])
])

dnl -------------------------------------------------------------------------
dnl AC_F9X_MODS()
dnl
dnl	Check how F9X handles modules. This macro also checks which
dnl	command-line option to use to include the module once it's built.
dnl
AC_DEFUN([AC_F9X_MODS],
[AC_MSG_CHECKING(what $FC does with modules)
AC_LANG_PUSH(Fortran)

test -d conftestdir || mkdir conftestdir
cd conftestdir
rm -rf *

cat >conftest.$ac_ext <<EOF
      module module
         integer foo
      end module module
EOF

eval $ac_compile
modfiles=""
F9XMODEXT=""

for f in conftest.o module.mod MODULE.mod module.M MODULE.M; do
  if test -f "$f" ; then
    modfiles="$f"

    case "$f" in
      *.o)   F9XMODEXT="o" ;;
      *.mod) F9XMODEXT="mod" ;;
      *.M)   F9XMODEXT="M" ;;
    esac
  fi
done

echo $modfiles 6>&1
if test "$modfiles" = file.o; then
  echo $ac_n "checking whether $FC -em is saner""... $ac_c" 1>&6
  OLD_FCFLAGS=$FCFLAGS
  FCFLAGS="$FCFLAGS -em"
  eval $ac_compile
  modfiles=""
  for f in file.o module.mod MODULE.mod module.M MODULE.M; do
    test -f $f && modfiles="$f"
  done
  if test "$modfiles" = "file.o"; then
    FCFLAGS=$OLD_FCFLAGS
    echo no 6>&1
  else
    echo yes 6>&1
  fi
fi
cd ..

AC_MSG_CHECKING(how $FC finds modules)

for flag in "-I" "-M" "-p"; do
  cat >conftest.$ac_ext <<EOF
      program conftest
          use module
      end program conftest
EOF

  ac_compile='${FC-f90} $FCFLAGS ${flag}conftestdir -c conftest.$ac_ext 1>&AS_MESSAGE_LOG_FD'

  if AC_TRY_EVAL(ac_compile); then
    F9XMODFLAG=$flag
    break
  fi
done

if test -n "$F9XMODFLAG"; then
  echo $F9XMODFLAG 1>&6
  FCFLAGS="$F9XMODFLAG. $FCFLAGS"
else
  echo unknown 1>&6
fi
AC_SUBST(F9XMODFLAG)
AC_SUBST(F9XMODEXT)
rm -rf conftest*
AC_LANG_POP(Fortran)
])

dnl ----------------------
dnl Parallel Test Programs
dnl ----------------------

dnl Try link a simple MPI program.

AC_DEFUN([PAC_PROG_FC_MPI_CHECK],[

dnl   Change to the Fortran 90 language
      AC_LANG_PUSH(Fortran)

dnl   Try link a simple MPI program.
      AC_MSG_CHECKING([whether a simple MPI-IO Fortran program can be linked])
      AC_LINK_IFELSE([ 
          PROGRAM main
          INCLUDE 'mpif.h'
          INTEGER :: comm, amode, info, fh, ierror
          CHARACTER(LEN=1) :: filename 
          CALL MPI_File_open( comm, filename, amode, info, fh, ierror)
          END],
	  [AC_MSG_RESULT([yes])],
	  [AC_MSG_RESULT([no])
	   AC_MSG_ERROR([unable to link a simple MPI-IO Fortran program])])

dnl   Change to the C language
      AC_LANG_POP(Fortran)
])

dnl ------------------------------------------------------
dnl Determine the available KINDs for REALs and INTEGERs
dnl ------------------------------------------------------
dnl
dnl This is a runtime test.
dnl
AC_DEFUN([PAC_FC_AVAIL_KINDS],[
AC_LANG_PUSH([Fortran])
rm -f pac_fconftest.out
AC_RUN_IFELSE([
    AC_LANG_SOURCE([
        PROGRAM main
        IMPLICIT NONE
        INTEGER :: ik, k, lastkind
        lastkind=SELECTED_INT_KIND(1)
        OPEN(8, FILE="pac_fconftest.out", form="formatted")
        WRITE(8,'("ik:")',ADVANCE='NO') ! Find integer KINDs
        DO ik=2,30
             k = SELECTED_INT_KIND(ik)
             IF (k .NE. lastkind) THEN
                  WRITE(8,'(I0,A)',ADVANCE='NO') lastkind," "
                  lastkind = k
             ENDIF
             IF (k .LE. 0) EXIT
        ENDDO
        dnl IF (k.NE.lastkind) WRITE(8,'(I0,A)',ADVANCE='NO') k, " "
	IF (lastkind.NE.-1) WRITE(8,'(I0,A)',ADVANCE='NO') lastkind, " "
        WRITE(8,'(/)')
        WRITE(8,'("rk:")',ADVANCE='NO') ! Find real KINDs
        lastkind=SELECTED_REAL_KIND(1)
        DO ik=2,30
             k = SELECTED_REAL_KIND(ik)
             IF (k .NE. lastkind) THEN
                  WRITE(8,'(I0,A)',ADVANCE='NO') lastkind," "
                  lastkind = k
             ENDIF
             IF (k .LE. 0) EXIT
        ENDDO
        IF (lastkind.NE.-1) WRITE(8,'(I0,A)',ADVANCE='NO') lastkind, " "
        dnl IF (k.NE.lastkind) WRITE(8,'(I0,A)',ADVANCE='NO') k, " "

        END
    ])
],[
    if test -s pac_fconftest.out ; then
		
     dnl   pac_flag="`sed -e 's/  */ /g' pac_fconftest.out | tr '\012' ','`"
        pac_validIntKinds="`sed -n -e 's/^.*ik://p' pac_fconftest.out`"
        pac_validRealKinds="`sed -n -e 's/^.*rk://p' pac_fconftest.out`"
        PAC_FC_ALL_INTEGER_KINDS="{`echo $pac_validIntKinds | sed -e 's/ /,/g'`}"
        PAC_FC_ALL_REAL_KINDS="{`echo $pac_validRealKinds | sed -e 's/ /,/g'`}"
        AC_MSG_CHECKING([for Fortran INTEGER KINDs])
        AC_MSG_RESULT([$PAC_FC_ALL_INTEGER_KINDS])
	AC_MSG_CHECKING([for Fortran REAL KINDs])
	AC_MSG_RESULT([$PAC_FC_ALL_REAL_KINDS])
    else
        AC_MSG_RESULT([Error])
        AC_MSG_WARN([No output from test program!])
    fi
    dnl rm -f pac_fconftest.out
],[
    AC_MSG_RESULT([Error])
    AC_MSG_WARN([Failed to run program to determine available KINDs])
],[
    dnl Even when cross_compiling=yes,
    dnl pac_validKinds needs to be set for PAC_FC_INTEGER_MODEL_MAP()
     dnl pac_validKinds="`echo \"$2\" | tr ',' ':'`"
     dnl AC_MSG_RESULT([$2])
     dnl ifelse([$1],[],[PAC_FC_ALL_INTEGER_MODELS=$2],[$1=$2])
])
AC_LANG_POP([Fortran])
])

AC_DEFUN([PAC_FC_SIZEOF_INT_KINDS],[
AC_REQUIRE([PAC_FC_AVAIL_KINDS])
AC_MSG_CHECKING([sizeof of available INTEGER KINDs])
AC_LANG_PUSH([Fortran])
pack_int_sizeof=""
rm -f pac_fconftest.out
for kind in $pac_validIntKinds; do
  AC_LANG_CONFTEST([
      AC_LANG_SOURCE([
                program main
                integer (kind=$kind) a
                open(8, file="pac_fconftest.out", form="formatted")
                write(8,'(I0)') sizeof(a)
                close(8)
                end
            ])
        ])
        AC_RUN_IFELSE([],[
            if test -s pac_fconftest.out ; then
                sizes="`cat pac_fconftest.out`"
                pack_int_sizeof="$pack_int_sizeof $sizes,"
            else
                AC_MSG_WARN([No output from test program!])
            fi
            rm -f pac_fconftest.out
        ],[
            AC_MSG_WARN([Fortran program fails to build or run!])
        ],[
            pack_int_sizeof="$2"
        ])
done
PAC_FC_ALL_INTEGER_KINDS_SIZEOF="{ $pack_int_sizeof }"
AC_MSG_RESULT([$PAC_FC_ALL_INTEGER_KINDS_SIZEOF])
AC_LANG_POP([Fortran])
])

AC_DEFUN([PAC_FC_SIZEOF_REAL_KINDS],[
AC_REQUIRE([PAC_FC_AVAIL_KINDS])
AC_MSG_CHECKING([sizeof of available REAL KINDs])
AC_LANG_PUSH([Fortran])
pack_real_sizeof=""
rm -f pac_fconftest.out
for kind in $pac_validRealKinds; do
  AC_LANG_CONFTEST([
      AC_LANG_SOURCE([
                program main
                REAL (kind=$kind) :: a
                open(8, file="pac_fconftest.out", form="formatted")
                write(8,'(I0)') sizeof(a)
                close(8)
                end
            ])
        ])
        AC_RUN_IFELSE([],[
            if test -s pac_fconftest.out ; then
                sizes="`cat pac_fconftest.out`"
                pack_real_sizeof="$pack_real_sizeof $sizes,"
            else
                AC_MSG_WARN([No output from test program!])
            fi
            rm -f pac_fconftest.out
        ],[
            AC_MSG_WARN([Fortran program fails to build or run!])
        ],[
            pack_real_sizeof="$2"
        ])
done
PAC_FC_ALL_REAL_KINDS_SIZEOF="{ $pack_real_sizeof }"
AC_MSG_RESULT([$PAC_FC_ALL_REAL_KINDS_SIZEOF])
AC_LANG_POP([Fortran])
])

AC_DEFUN([PAC_FC_NATIVE_INTEGER],[
AC_REQUIRE([PAC_FC_AVAIL_KINDS])
AC_MSG_CHECKING([sizeof of native KINDS])
AC_LANG_PUSH([Fortran])
pack_int_sizeof=""
rm -f pac_fconftest.out
  AC_LANG_CONFTEST([
      AC_LANG_SOURCE([
                program main
                integer a
                real b
                double precision c
                open(8, file="pac_fconftest.out", form="formatted")
                write(8,*) sizeof(a)
	        write(8,*) kind(a)
	        write(8,*) sizeof(b)
	        write(8,*) kind(b)
                write(8,*) sizeof(c)
                write(8,*) kind(c)
                close(8)
                end
            ])
        ])
        AC_RUN_IFELSE([],[
            if test -s pac_fconftest.out ; then
                PAC_FORTRAN_NATIVE_INTEGER_KIND="`sed -n '1p' pac_fconftest.out`"
                PAC_FORTRAN_NATIVE_INTEGER_SIZEOF="`sed -n '2p' pac_fconftest.out`"
                PAC_FORTRAN_NATIVE_REAL_KIND="`sed -n '3p' pac_fconftest.out`"
                PAC_FORTRAN_NATIVE_REAL_SIZEOF="`sed -n '4p' pac_fconftest.out`"
                PAC_FORTRAN_NATIVE_DOUBLE_KIND="`sed -n '5p' pac_fconftest.out`"
                PAC_FORTRAN_NATIVE_DOUBLE_SIZEOF="`sed -n '6p' pac_fconftest.out`"
            else
                AC_MSG_WARN([No output from test program!])
            fi
            rm -f pac_fconftest.out
        ],[
            AC_MSG_WARN([Fortran program fails to build or run!])
        ],[
            pack_int_sizeof="$2"
        ])
AC_MSG_RESULT([$pack_int_sizeof])
AC_LANG_POP([Fortran])
])