Training courses

Kernel and Embedded Linux

Bootlin training courses

Embedded Linux, kernel,
Yocto Project, Buildroot, real-time,
graphics, boot time, debugging...

Bootlin logo

Elixir Cross Referencer

   1
   2
   3
   4
   5
   6
   7
   8
   9
  10
  11
  12
  13
  14
  15
  16
  17
  18
  19
  20
  21
  22
  23
  24
  25
  26
  27
  28
  29
  30
  31
  32
  33
  34
  35
  36
  37
  38
  39
  40
  41
  42
  43
  44
  45
  46
  47
  48
  49
  50
  51
  52
  53
  54
  55
  56
  57
  58
  59
  60
  61
  62
  63
  64
  65
  66
  67
  68
  69
  70
  71
  72
  73
  74
  75
  76
  77
  78
  79
  80
  81
  82
  83
  84
  85
  86
  87
  88
  89
  90
  91
  92
  93
  94
  95
  96
  97
  98
  99
 100
 101
 102
 103
 104
 105
 106
 107
 108
 109
 110
 111
 112
 113
 114
 115
 116
 117
 118
 119
 120
 121
 122
 123
 124
 125
 126
 127
 128
 129
 130
 131
 132
 133
 134
 135
 136
 137
 138
 139
 140
 141
 142
 143
 144
 145
 146
 147
 148
 149
 150
 151
 152
 153
 154
 155
 156
 157
 158
 159
 160
 161
 162
 163
 164
 165
 166
 167
 168
 169
 170
 171
 172
 173
 174
 175
 176
 177
 178
 179
 180
 181
 182
 183
 184
 185
 186
 187
 188
 189
 190
 191
 192
 193
 194
 195
 196
 197
 198
 199
 200
 201
 202
 203
 204
 205
 206
 207
 208
 209
 210
 211
 212
 213
 214
 215
 216
 217
 218
 219
 220
 221
 222
 223
 224
 225
 226
 227
 228
 229
 230
 231
 232
 233
 234
 235
 236
 237
 238
 239
 240
 241
 242
 243
 244
 245
 246
 247
 248
 249
 250
 251
 252
 253
 254
 255
 256
 257
 258
 259
 260
 261
 262
 263
 264
 265
 266
 267
 268
 269
 270
 271
 272
 273
 274
 275
 276
 277
 278
 279
 280
 281
 282
 283
 284
 285
 286
 287
 288
 289
 290
 291
 292
 293
 294
 295
 296
 297
 298
 299
 300
 301
 302
 303
 304
 305
 306
 307
 308
 309
 310
 311
 312
 313
 314
 315
 316
 317
 318
 319
 320
 321
 322
 323
 324
 325
 326
 327
 328
 329
 330
 331
 332
 333
 334
 335
 336
 337
 338
 339
 340
 341
 342
 343
 344
 345
 346
 347
 348
 349
 350
 351
 352
 353
 354
 355
 356
 357
 358
 359
 360
 361
 362
 363
 364
 365
 366
 367
 368
 369
 370
 371
 372
 373
 374
 375
 376
 377
 378
 379
 380
 381
 382
 383
 384
 385
 386
 387
 388
 389
 390
 391
 392
 393
 394
 395
 396
 397
 398
 399
 400
 401
 402
 403
 404
 405
 406
 407
 408
 409
 410
 411
 412
 413
 414
 415
 416
 417
 418
 419
 420
 421
 422
 423
 424
 425
 426
 427
 428
 429
 430
 431
 432
 433
 434
 435
 436
 437
 438
 439
 440
 441
 442
 443
 444
 445
 446
 447
 448
 449
 450
 451
 452
 453
 454
 455
 456
 457
 458
 459
 460
 461
 462
 463
 464
 465
 466
 467
 468
 469
 470
 471
 472
 473
 474
 475
 476
 477
 478
 479
 480
 481
 482
 483
 484
 485
 486
 487
 488
 489
 490
 491
 492
 493
 494
 495
 496
 497
 498
 499
 500
 501
 502
 503
 504
 505
 506
 507
 508
 509
 510
 511
 512
 513
 514
 515
 516
 517
 518
 519
 520
 521
 522
 523
 524
 525
 526
 527
 528
 529
 530
 531
 532
 533
 534
 535
 536
 537
 538
 539
 540
 541
 542
 543
 544
 545
 546
 547
 548
 549
 550
 551
 552
 553
 554
 555
 556
 557
 558
 559
 560
 561
 562
 563
 564
 565
 566
 567
 568
 569
 570
 571
 572
 573
 574
 575
 576
 577
 578
 579
 580
 581
 582
 583
 584
 585
 586
 587
 588
 589
 590
 591
 592
 593
 594
 595
 596
 597
 598
 599
 600
 601
 602
 603
 604
 605
 606
 607
 608
 609
 610
 611
 612
 613
 614
 615
 616
 617
 618
 619
 620
 621
 622
 623
 624
 625
 626
 627
 628
 629
 630
 631
 632
 633
 634
 635
 636
 637
 638
 639
 640
 641
 642
 643
 644
 645
 646
 647
 648
 649
 650
 651
 652
 653
 654
 655
 656
 657
 658
 659
 660
 661
 662
 663
 664
 665
 666
 667
 668
 669
 670
 671
 672
 673
 674
 675
 676
 677
 678
 679
 680
 681
 682
 683
 684
 685
 686
 687
 688
 689
 690
 691
 692
 693
 694
 695
 696
 697
 698
 699
 700
 701
 702
 703
 704
 705
 706
 707
 708
 709
 710
 711
 712
 713
 714
 715
 716
 717
 718
 719
 720
 721
 722
 723
 724
 725
 726
 727
 728
 729
 730
 731
 732
 733
 734
 735
 736
 737
 738
 739
 740
 741
 742
 743
 744
 745
 746
 747
 748
 749
 750
 751
 752
 753
 754
 755
 756
 757
 758
 759
 760
 761
 762
 763
 764
 765
 766
 767
 768
 769
 770
 771
 772
 773
 774
 775
 776
 777
 778
 779
 780
 781
 782
 783
 784
 785
 786
 787
 788
 789
 790
 791
 792
 793
 794
 795
 796
 797
 798
 799
 800
 801
 802
 803
 804
 805
 806
 807
 808
 809
 810
 811
 812
 813
 814
 815
 816
 817
 818
 819
 820
 821
 822
 823
 824
 825
 826
 827
 828
 829
 830
 831
 832
 833
 834
 835
 836
 837
 838
 839
 840
 841
 842
 843
 844
 845
 846
 847
 848
 849
 850
 851
 852
 853
 854
 855
 856
 857
 858
 859
 860
 861
 862
 863
 864
 865
 866
 867
 868
 869
 870
 871
 872
 873
 874
 875
 876
 877
 878
 879
 880
 881
 882
 883
 884
 885
 886
 887
 888
 889
 890
 891
 892
 893
 894
 895
 896
 897
 898
 899
 900
 901
 902
 903
 904
 905
 906
 907
 908
 909
 910
 911
 912
 913
 914
 915
 916
 917
 918
 919
 920
 921
 922
 923
 924
 925
 926
 927
 928
 929
 930
 931
 932
 933
 934
 935
 936
 937
 938
 939
 940
 941
 942
 943
 944
 945
 946
 947
 948
 949
 950
 951
 952
 953
 954
 955
 956
 957
 958
 959
 960
 961
 962
 963
 964
 965
 966
 967
 968
 969
 970
 971
 972
 973
 974
 975
 976
 977
 978
 979
 980
 981
 982
 983
 984
 985
 986
 987
 988
 989
 990
 991
 992
 993
 994
 995
 996
 997
 998
 999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
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
dnl aclocal.m4 generated automatically by aclocal 1.4

dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
dnl This file is free software; the Free Software Foundation
dnl gives unlimited permission to copy and/or distribute it,
dnl with or without modifications, as long as this notice is preserved.

dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
dnl PARTICULAR PURPOSE.

dnl written by Rob Savoye <rob@cygnus.com> for Cygnus Support
dnl major rewriting for Tcl 7.5 by Don Libes <libes@nist.gov>

dnl gdb/configure.in uses BFD_NEED_DECLARATION, so get its definition.
sinclude(../bfd/acinclude.m4)

dnl This gets the standard macros, like the TCL, TK, etc ones.
sinclude(../config/acinclude.m4)

dnl CYGNUS LOCAL: This gets the right posix flag for gcc
AC_DEFUN(CY_AC_TCL_LYNX_POSIX,
[AC_REQUIRE([AC_PROG_CC])AC_REQUIRE([AC_PROG_CPP])
AC_MSG_CHECKING([if running LynxOS])
AC_CACHE_VAL(ac_cv_os_lynx,
[AC_EGREP_CPP(yes,
[/*
 * The old Lynx "cc" only defines "Lynx", but the newer one uses "__Lynx__"
 */
#if defined(__Lynx__) || defined(Lynx)
yes
#endif
], ac_cv_os_lynx=yes, ac_cv_os_lynx=no)])
#
if test "$ac_cv_os_lynx" = "yes" ; then
  AC_MSG_RESULT(yes)
  AC_DEFINE(LYNX)
  AC_MSG_CHECKING([whether -mposix or -X is available])
  AC_CACHE_VAL(ac_cv_c_posix_flag,
  [AC_TRY_COMPILE(,[
  /*
   * This flag varies depending on how old the compiler is.
   * -X is for the old "cc" and "gcc" (based on 1.42).
   * -mposix is for the new gcc (at least 2.5.8).
   */
  #if defined(__GNUC__) && __GNUC__ >= 2
  choke me
  #endif
  ], ac_cv_c_posix_flag=" -mposix", ac_cv_c_posix_flag=" -X")])
  CC="$CC $ac_cv_c_posix_flag"
  AC_MSG_RESULT($ac_cv_c_posix_flag)
  else
  AC_MSG_RESULT(no)
fi
])

#
# Sometimes the native compiler is a bogus stub for gcc or /usr/ucb/cc. This
# makes configure think it's cross compiling. If --target wasn't used, then
# we can't configure, so something is wrong. We don't use the cache
# here cause if somebody fixes their compiler install, we want this to work.
AC_DEFUN(CY_AC_C_WORKS,
[# If we cannot compile and link a trivial program, we can't expect anything to work
AC_MSG_CHECKING(whether the compiler ($CC) actually works)
AC_TRY_COMPILE(, [/* don't need anything here */],
        c_compiles=yes, c_compiles=no)

AC_TRY_LINK(, [/* don't need anything here */],
        c_links=yes, c_links=no)

if test x"${c_compiles}" = x"no" ; then
  AC_MSG_ERROR(the native compiler is broken and won't compile.)
fi

if test x"${c_links}" = x"no" ; then
  AC_MSG_ERROR(the native compiler is broken and won't link.)
fi
AC_MSG_RESULT(yes)
])

AC_DEFUN(CY_AC_PATH_TCLH, [
#
# Ok, lets find the tcl source trees so we can use the headers
# Warning: transition of version 9 to 10 will break this algorithm
# because 10 sorts before 9. We also look for just tcl. We have to
# be careful that we don't match stuff like tclX by accident.
# the alternative search directory is involked by --with-tclinclude
#

no_tcl=true
AC_MSG_CHECKING(for Tcl private headers. dir=${configdir})
AC_ARG_WITH(tclinclude, [  --with-tclinclude=DIR   Directory where tcl private headers are], with_tclinclude=${withval})
AC_CACHE_VAL(ac_cv_c_tclh,[
# first check to see if --with-tclinclude was specified
if test x"${with_tclinclude}" != x ; then
  if test -f ${with_tclinclude}/tclInt.h ; then
    ac_cv_c_tclh=`(cd ${with_tclinclude}; pwd)`
  elif test -f ${with_tclinclude}/generic/tclInt.h ; then
    ac_cv_c_tclh=`(cd ${with_tclinclude}/generic; pwd)`
  else
    AC_MSG_ERROR([${with_tclinclude} directory doesn't contain private headers])
  fi
fi

# next check if it came with Tcl configuration file
if test x"${ac_cv_c_tclconfig}" = x ; then
  if test -f $ac_cv_c_tclconfig/../generic/tclInt.h ; then
    ac_cv_c_tclh=`(cd $ac_cv_c_tclconfig/..; pwd)`
  fi
fi

# next check in private source directory
#
# since ls returns lowest version numbers first, reverse its output
if test x"${ac_cv_c_tclh}" = x ; then
  for i in \
		${srcdir}/../tcl \
		`ls -dr ${srcdir}/../tcl[[7-9]]* 2>/dev/null` \
		${srcdir}/../../tcl \
		`ls -dr ${srcdir}/../../tcl[[7-9]]* 2>/dev/null` \
		${srcdir}/../../../tcl \
		`ls -dr ${srcdir}/../../../tcl[[7-9]]* 2>/dev/null ` ; do
    if test -f $i/generic/tclInt.h ; then
      ac_cv_c_tclh=`(cd $i/generic; pwd)`
      break
    fi
  done
fi
# finally check in a few common install locations
#
# since ls returns lowest version numbers first, reverse its output
if test x"${ac_cv_c_tclh}" = x ; then
  for i in \
		`ls -dr /usr/local/src/tcl[[7-9]]* 2>/dev/null` \
		`ls -dr /usr/local/lib/tcl[[7-9]]* 2>/dev/null` \
		/usr/local/src/tcl \
		/usr/local/lib/tcl \
		${prefix}/include ; do
    if test -f $i/generic/tclInt.h ; then
      ac_cv_c_tclh=`(cd $i/generic; pwd)`
      break
    fi
  done
fi
# see if one is installed
if test x"${ac_cv_c_tclh}" = x ; then
   AC_HEADER_CHECK(tclInt.h, ac_cv_c_tclh=installed, ac_cv_c_tclh="")
fi
])
if test x"${ac_cv_c_tclh}" = x ; then
  TCLHDIR="# no Tcl private headers found"
  AC_MSG_ERROR([Can't find Tcl private headers])
fi
if test x"${ac_cv_c_tclh}" != x ; then
  no_tcl=""
  if test x"${ac_cv_c_tclh}" = x"installed" ; then
    AC_MSG_RESULT([is installed])
    TCLHDIR=""
  else
    AC_MSG_RESULT([found in ${ac_cv_c_tclh}])
    # this hack is cause the TCLHDIR won't print if there is a "-I" in it.
    TCLHDIR="-I${ac_cv_c_tclh}"
  fi
fi

AC_SUBST(TCLHDIR)
])


AC_DEFUN(CY_AC_PATH_TCLCONFIG, [
#
# Ok, lets find the tcl configuration
# First, look for one uninstalled.  
# the alternative search directory is invoked by --with-tclconfig
#

if test x"${no_tcl}" = x ; then
  # we reset no_tcl in case something fails here
  no_tcl=true
  AC_ARG_WITH(tclconfig, [  --with-tclconfig=DIR    Directory containing tcl configuration (tclConfig.sh)],
         with_tclconfig=${withval})
  AC_MSG_CHECKING([for Tcl configuration])
  AC_CACHE_VAL(ac_cv_c_tclconfig,[

  # First check to see if --with-tclconfig was specified.
  if test x"${with_tclconfig}" != x ; then
    if test -f "${with_tclconfig}/tclConfig.sh" ; then
      ac_cv_c_tclconfig=`(cd ${with_tclconfig}; pwd)`
    else
      AC_MSG_ERROR([${with_tclconfig} directory doesn't contain tclConfig.sh])
    fi
  fi

  # then check for a private Tcl installation
  if test x"${ac_cv_c_tclconfig}" = x ; then
    for i in \
		../tcl \
		`ls -dr ../tcl[[7-9]]* 2>/dev/null` \
		../../tcl \
		`ls -dr ../../tcl[[7-9]]* 2>/dev/null` \
		../../../tcl \
		`ls -dr ../../../tcl[[7-9]]* 2>/dev/null` ; do
      if test -f "$i/${configdir}/tclConfig.sh" ; then
        ac_cv_c_tclconfig=`(cd $i/${configdir}; pwd)`
	break
      fi
    done
  fi
  # check in a few common install locations
  if test x"${ac_cv_c_tclconfig}" = x ; then
    for i in `ls -d ${prefix}/lib /usr/local/lib 2>/dev/null` ; do
      if test -f "$i/tclConfig.sh" ; then
        ac_cv_c_tclconfig=`(cd $i; pwd)`
	break
      fi
    done
  fi
  # check in a few other private locations
  if test x"${ac_cv_c_tclconfig}" = x ; then
    for i in \
		${srcdir}/../tcl \
		`ls -dr ${srcdir}/../tcl[[7-9]]* 2>/dev/null` ; do
      if test -f "$i/${configdir}/tclConfig.sh" ; then
        ac_cv_c_tclconfig=`(cd $i/${configdir}; pwd)`
	break
      fi
    done
  fi
  ])
  if test x"${ac_cv_c_tclconfig}" = x ; then
    TCLCONFIG="# no Tcl configs found"
    AC_MSG_WARN(Can't find Tcl configuration definitions)
  else
    no_tcl=
    TCLCONFIG=${ac_cv_c_tclconfig}/tclConfig.sh
    AC_MSG_RESULT(found $TCLCONFIG)
  fi
fi
])

# Defined as a separate macro so we don't have to cache the values
# from PATH_TCLCONFIG (because this can also be cached).
AC_DEFUN(CY_AC_LOAD_TCLCONFIG, [
    . $TCLCONFIG

    AC_SUBST(TCL_VERSION)
    AC_SUBST(TCL_MAJOR_VERSION)
    AC_SUBST(TCL_MINOR_VERSION)
    AC_SUBST(TCL_CC)
    AC_SUBST(TCL_DEFS)

dnl not used, don't export to save symbols
dnl    AC_SUBST(TCL_LIB_FILE)

dnl don't export, not used outside of configure
dnl     AC_SUBST(TCL_LIBS)
dnl not used, don't export to save symbols
dnl    AC_SUBST(TCL_PREFIX)

dnl not used, don't export to save symbols
dnl    AC_SUBST(TCL_EXEC_PREFIX)

    AC_SUBST(TCL_SHLIB_CFLAGS)
    AC_SUBST(TCL_SHLIB_LD)
dnl don't export, not used outside of configure
    AC_SUBST(TCL_SHLIB_LD_LIBS)
    AC_SUBST(TCL_SHLIB_SUFFIX)
dnl not used, don't export to save symbols
    AC_SUBST(TCL_DL_LIBS)
    AC_SUBST(TCL_LD_FLAGS)
dnl don't export, not used outside of configure
    AC_SUBST(TCL_LD_SEARCH_FLAGS)
    AC_SUBST(TCL_CC_SEARCH_FLAGS)
    AC_SUBST(TCL_COMPAT_OBJS)
    AC_SUBST(TCL_RANLIB)
    AC_SUBST(TCL_BUILD_LIB_SPEC)
    AC_SUBST(TCL_LIB_SPEC)
    AC_SUBST(TCL_LIB_VERSIONS_OK)

dnl not used, don't export to save symbols
dnl    AC_SUBST(TCL_SHARED_LIB_SUFFIX)

dnl not used, don't export to save symbols
dnl    AC_SUBST(TCL_UNSHARED_LIB_SUFFIX)
])

# Warning: Tk definitions are very similar to Tcl definitions but
# are not precisely the same.  There are a couple of differences,
# so don't do changes to Tcl thinking you can cut and paste it do 
# the Tk differences and later simply substitute "Tk" for "Tcl".
# Known differences:
#  - Acceptable Tcl major version #s is 7-9 while Tk is 4-9
#  - Searching for Tcl includes looking for tclInt.h, Tk looks for tk.h
#  - Computing major/minor versions is different because Tk depends on
#    headers to Tcl, Tk, and X.
#  - Symbols in tkConfig.sh are different than tclConfig.sh
#  - Acceptable for Tk to be missing but not Tcl.

AC_DEFUN(CY_AC_PATH_TKH, [
#
# Ok, lets find the tk source trees so we can use the headers
# If the directory (presumably symlink) named "tk" exists, use that one
# in preference to any others.  Same logic is used when choosing library
# and again with Tcl. The search order is the best place to look first, then in
# decreasing significance. The loop breaks if the trigger file is found.
# Note the gross little conversion here of srcdir by cd'ing to the found
# directory. This converts the path from a relative to an absolute, so
# recursive cache variables for the path will work right. We check all
# the possible paths in one loop rather than many seperate loops to speed
# things up.
# the alternative search directory is involked by --with-tkinclude
#
no_tk=true
AC_MSG_CHECKING(for Tk private headers)
AC_ARG_WITH(tkinclude, [  --with-tkinclude=DIR    Directory where tk private headers are], with_tkinclude=${withval})
AC_CACHE_VAL(ac_cv_c_tkh,[
# first check to see if --with-tkinclude was specified
if test x"${with_tkinclude}" != x ; then
  if test -f ${with_tkinclude}/tk.h ; then
    ac_cv_c_tkh=`(cd ${with_tkinclude}; pwd)`
  elif test -f ${with_tkinclude}/generic/tk.h ; then
    ac_cv_c_tkh=`(cd ${with_tkinclude}/generic; pwd)`
  else
    AC_MSG_ERROR([${with_tkinclude} directory doesn't contain private headers])
  fi
fi

# next check if it came with Tk configuration file
if test x"${ac_cv_c_tkconfig}" = x ; then
  if test -f $ac_cv_c_tkconfig/../generic/tk.h ; then
    ac_cv_c_tkh=`(cd $ac_cv_c_tkconfig/..; pwd)`
  fi
fi

# next check in private source directory
#
# since ls returns lowest version numbers first, reverse its output
if test x"${ac_cv_c_tkh}" = x ; then
  for i in \
		${srcdir}/../tk \
		`ls -dr ${srcdir}/../tk[[4-9]]* 2>/dev/null` \
		${srcdir}/../../tk \
		`ls -dr ${srcdir}/../../tk[[4-9]]* 2>/dev/null` \
		${srcdir}/../../../tk \
		`ls -dr ${srcdir}/../../../tk[[4-9]]* 2>/dev/null ` ; do
    if test -f $i/generic/tk.h ; then
      ac_cv_c_tkh=`(cd $i/generic; pwd)`
      break
    fi
  done
fi
# finally check in a few common install locations
#
# since ls returns lowest version numbers first, reverse its output
if test x"${ac_cv_c_tkh}" = x ; then
  for i in \
		`ls -dr /usr/local/src/tk[[4-9]]* 2>/dev/null` \
		`ls -dr /usr/local/lib/tk[[4-9]]* 2>/dev/null` \
		/usr/local/src/tk \
		/usr/local/lib/tk \
		${prefix}/include ; do
    if test -f $i/generic/tk.h ; then
      ac_cv_c_tkh=`(cd $i/generic; pwd)`
      break
    fi
  done
fi
# see if one is installed
if test x"${ac_cv_c_tkh}" = x ; then
   AC_HEADER_CHECK(tk.h, ac_cv_c_tkh=installed, ac_cv_c_tkh="")
fi
])
if test x"${ac_cv_c_tkh}" != x ; then
  no_tk=""
  if test x"${ac_cv_c_tkh}" = x"installed" ; then
    AC_MSG_RESULT([is installed])
    TKHDIR=""
  else
    AC_MSG_RESULT([found in ${ac_cv_c_tkh}])
    # this hack is cause the TKHDIR won't print if there is a "-I" in it.
    TKHDIR="-I${ac_cv_c_tkh}"
  fi
else
  TKHDIR="# no Tk directory found"
  AC_MSG_WARN([Can't find Tk private headers])
  no_tk=true
fi

AC_SUBST(TKHDIR)
])


AC_DEFUN(CY_AC_PATH_TKCONFIG, [
#
# Ok, lets find the tk configuration
# First, look for one uninstalled.  
# the alternative search directory is invoked by --with-tkconfig
#

if test x"${no_tk}" = x ; then
  # we reset no_tk in case something fails here
  no_tk=true
  AC_ARG_WITH(tkconfig, [  --with-tkconfig=DIR     Directory containing tk configuration (tkConfig.sh)],
         with_tkconfig=${withval})
  AC_MSG_CHECKING([for Tk configuration])
  AC_CACHE_VAL(ac_cv_c_tkconfig,[

  # First check to see if --with-tkconfig was specified.
  if test x"${with_tkconfig}" != x ; then
    if test -f "${with_tkconfig}/tkConfig.sh" ; then
      ac_cv_c_tkconfig=`(cd ${with_tkconfig}; pwd)`
    else
      AC_MSG_ERROR([${with_tkconfig} directory doesn't contain tkConfig.sh])
    fi
  fi

  # then check for a private Tk library
  if test x"${ac_cv_c_tkconfig}" = x ; then
    for i in \
		../tk \
		`ls -dr ../tk[[4-9]]* 2>/dev/null` \
		../../tk \
		`ls -dr ../../tk[[4-9]]* 2>/dev/null` \
		../../../tk \
		`ls -dr ../../../tk[[4-9]]* 2>/dev/null` ; do
      if test -f "$i/${configdir}/tkConfig.sh" ; then
        ac_cv_c_tkconfig=`(cd $i/${configdir}; pwd)`
	break
      fi
    done
  fi
  # check in a few common install locations
  if test x"${ac_cv_c_tkconfig}" = x ; then
    for i in `ls -d ${prefix}/lib /usr/local/lib 2>/dev/null` ; do
      if test -f "$i/tkConfig.sh" ; then
        ac_cv_c_tkconfig=`(cd $i; pwd)`
	break
      fi
    done
  fi
  # check in a few other private locations
  if test x"${ac_cv_c_tkconfig}" = x ; then
    for i in \
		${srcdir}/../tk \
		`ls -dr ${srcdir}/../tk[[4-9]]* 2>/dev/null` ; do
      if test -f "$i/${configdir}/tkConfig.sh" ; then
        ac_cv_c_tkconfig=`(cd $i/${configdir}; pwd)`
	break
      fi
    done
  fi
  ])
  if test x"${ac_cv_c_tkconfig}" = x ; then
    TKCONFIG="# no Tk configs found"
    AC_MSG_WARN(Can't find Tk configuration definitions)
  else
    no_tk=
    TKCONFIG=${ac_cv_c_tkconfig}/tkConfig.sh
    AC_MSG_RESULT(found $TKCONFIG)
  fi
fi

])

# Defined as a separate macro so we don't have to cache the values
# from PATH_TKCONFIG (because this can also be cached).
AC_DEFUN(CY_AC_LOAD_TKCONFIG, [
    if test -f "$TKCONFIG" ; then
      . $TKCONFIG
    fi

    AC_SUBST(TK_VERSION)
dnl not actually used, don't export to save symbols
dnl    AC_SUBST(TK_MAJOR_VERSION)
dnl    AC_SUBST(TK_MINOR_VERSION)
    AC_SUBST(TK_DEFS)

dnl not used, don't export to save symbols
    dnl AC_SUBST(TK_LIB_FILE)

dnl not used outside of configure
dnl    AC_SUBST(TK_LIBS)
dnl not used, don't export to save symbols
dnl    AC_SUBST(TK_PREFIX)

dnl not used, don't export to save symbols
dnl    AC_SUBST(TK_EXEC_PREFIX)

    AC_SUBST(TK_BUILD_INCLUDES)
    AC_SUBST(TK_XINCLUDES)
    AC_SUBST(TK_XLIBSW)
    AC_SUBST(TK_BUILD_LIB_SPEC)
    AC_SUBST(TK_LIB_SPEC)
])

# check for Itcl headers. 

AC_DEFUN(CY_AC_PATH_ITCLCONFIG, [
#
# Ok, lets find the itcl configuration
# First, look for one uninstalled.  
# the alternative search directory is invoked by --with-itclconfig
#

if test x"${no_itcl}" = x ; then
  # we reset no_itcl in case something fails here
  no_itcl=true
  AC_ARG_WITH(itclconfig, [  --with-itclconfig       Directory containing itcl configuration (itclConfig.sh)],
         with_itclconfig=${withval})
  AC_MSG_CHECKING([for Itcl configuration])
  AC_CACHE_VAL(ac_cv_c_itclconfig,[

  # First check to see if --with-itclconfig was specified.
  if test x"${with_itclconfig}" != x ; then
    if test -f "${with_itclconfig}/itclConfig.sh" ; then
      ac_cv_c_itclconfig=`(cd ${with_itclconfig}; pwd)`
    else
      AC_MSG_ERROR([${with_itclconfig} directory doesn't contain itclConfig.sh])
    fi
  fi

  # then check for a private Itcl library
  if test x"${ac_cv_c_itclconfig}" = x ; then
    for i in \
		../itcl/itcl \
		`ls -dr ../itcl[[4-9]]*/itcl 2>/dev/null` \
		../../itcl \
		`ls -dr ../../itcl[[4-9]]*/itcl 2>/dev/null` \
		../../../itcl \
		`ls -dr ../../../itcl[[4-9]]*/itcl 2>/dev/null` ; do
      if test -f "$i/itclConfig.sh" ; then
        ac_cv_c_itclconfig=`(cd $i; pwd)`
	break
      fi
    done
  fi
  # check in a few common install locations
  if test x"${ac_cv_c_itclconfig}" = x ; then
    for i in `ls -d ${prefix}/lib /usr/local/lib 2>/dev/null` ; do
      if test -f "$i/itclConfig.sh" ; then
        ac_cv_c_itclconfig=`(cd $i; pwd)`
	break
      fi
    done
  fi
  # check in a few other private locations
  if test x"${ac_cv_c_itclconfig}" = x ; then
    for i in \
		${srcdir}/../itcl/itcl \
		`ls -dr ${srcdir}/../itcl[[4-9]]*/itcl 2>/dev/null` ; do
      if test -f "$i/itclConfig.sh" ; then
        ac_cv_c_itclconfig=`(cd $i; pwd)`
	break
      fi
    done
  fi
  ])
  if test x"${ac_cv_c_itclconfig}" = x ; then
    ITCLCONFIG="# no Itcl configs found"
    AC_MSG_WARN(Can't find Itcl configuration definitions)
  else
    no_itcl=
    ITCLCONFIG=${ac_cv_c_itclconfig}/itclConfig.sh
    AC_MSG_RESULT(found $ITCLCONFIG)
  fi
fi
])

# Defined as a separate macro so we don't have to cache the values
# from PATH_ITCLCONFIG (because this can also be cached).
AC_DEFUN(CY_AC_LOAD_ITCLCONFIG, [
    if test -f "$ITCLCONFIG" ; then
      . $ITCLCONFIG
    fi

    AC_SUBST(ITCL_VERSION)
dnl not actually used, don't export to save symbols
dnl    AC_SUBST(ITCL_MAJOR_VERSION)
dnl    AC_SUBST(ITCL_MINOR_VERSION)
    AC_SUBST(ITCL_DEFS)

dnl not used, don't export to save symbols
    dnl AC_SUBST(ITCL_LIB_FILE)

dnl not used outside of configure
dnl    AC_SUBST(ITCL_LIBS)
dnl not used, don't export to save symbols
dnl    AC_SUBST(ITCL_PREFIX)

dnl not used, don't export to save symbols
dnl    AC_SUBST(ITCL_EXEC_PREFIX)

    AC_SUBST(ITCL_BUILD_INCLUDES)
    AC_SUBST(ITCL_BUILD_LIB_SPEC)
    AC_SUBST(ITCL_LIB_SPEC)
])

# check for Itcl headers. 

AC_DEFUN(CY_AC_PATH_ITCLH, [
AC_MSG_CHECKING(for Itcl private headers. srcdir=${srcdir})
if test x"${ac_cv_c_itclh}" = x ; then
  for i in ${srcdir}/../itcl ${srcdir}/../../itcl ${srcdir}/../../../itcl ${srcdir}/../itcl/itcl; do
    if test -f $i/generic/itcl.h ; then
      ac_cv_c_itclh=`(cd $i/generic; pwd)`
      break
    fi
  done
fi
if test x"${ac_cv_c_itclh}" = x ; then
  ITCLHDIR="# no Itcl private headers found"
  AC_MSG_ERROR([Can't find Itcl private headers])
fi
if test x"${ac_cv_c_itclh}" != x ; then
     ITCLHDIR="-I${ac_cv_c_itclh}"
fi
# should always be here
#     ITCLLIB="../itcl/itcl/unix/libitcl.a"
AC_SUBST(ITCLHDIR)
#AC_SUBST(ITCLLIB)
])


AC_DEFUN(CY_AC_PATH_ITKCONFIG, [
#
# Ok, lets find the itk configuration
# First, look for one uninstalled.  
# the alternative search directory is invoked by --with-itkconfig
#

if test x"${no_itk}" = x ; then
  # we reset no_itk in case something fails here
  no_itk=true
  AC_ARG_WITH(itkconfig, [  --with-itkconfig        Directory containing itk configuration (itkConfig.sh)],
         with_itkconfig=${withval})
  AC_MSG_CHECKING([for Itk configuration])
  AC_CACHE_VAL(ac_cv_c_itkconfig,[

  # First check to see if --with-itkconfig was specified.
  if test x"${with_itkconfig}" != x ; then
    if test -f "${with_itkconfig}/itkConfig.sh" ; then
      ac_cv_c_itkconfig=`(cd ${with_itkconfig}; pwd)`
    else
      AC_MSG_ERROR([${with_itkconfig} directory doesn't contain itkConfig.sh])
    fi
  fi

  # then check for a private Itk library
  if test x"${ac_cv_c_itkconfig}" = x ; then
    for i in \
		../itcl/itk \
		`ls -dr ../itcl[[4-9]]*/itk 2>/dev/null` \
		../../itk \
		`ls -dr ../../itcl[[4-9]]*/itk 2>/dev/null` \
		../../../itk \
		`ls -dr ../../../itcl[[4-9]]*/itk 2>/dev/null` ; do
      if test -f "$i/itkConfig.sh" ; then
        ac_cv_c_itkconfig=`(cd $i; pwd)`
	break
      fi
    done
  fi
  # check in a few common install locations
  if test x"${ac_cv_c_itkconfig}" = x ; then
    for i in `ls -d ${prefix}/lib /usr/local/lib 2>/dev/null` ; do
      if test -f "$i/itkConfig.sh" ; then
        ac_cv_c_itkconfig=`(cd $i; pwd)`
	break
      fi
    done
  fi
  # check in a few other private locations
  if test x"${ac_cv_c_itkconfig}" = x ; then
    for i in \
		${srcdir}/../itcl/itk \
		`ls -dr ${srcdir}/../itcl[[4-9]]*/itk 2>/dev/null` ; do
      if test -f "$i/itkConfig.sh" ; then
        ac_cv_c_itkconfig=`(cd $i; pwd)`
	break
      fi
    done
  fi
  ])
  if test x"${ac_cv_c_itkconfig}" = x ; then
    ITKCONFIG="# no Itk configs found"
    AC_MSG_WARN(Can't find Itk configuration definitions)
  else
    no_itk=
    ITKCONFIG=${ac_cv_c_itkconfig}/itkConfig.sh
    AC_MSG_RESULT(found $ITKCONFIG)
  fi
fi

])

# Defined as a separate macro so we don't have to cache the values
# from PATH_ITKCONFIG (because this can also be cached).
AC_DEFUN(CY_AC_LOAD_ITKCONFIG, [
    if test -f "$ITKCONFIG" ; then
      . $ITKCONFIG
    fi

    AC_SUBST(ITK_VERSION)
dnl not actually used, don't export to save symbols
dnl    AC_SUBST(ITK_MAJOR_VERSION)
dnl    AC_SUBST(ITK_MINOR_VERSION)
    AC_SUBST(ITK_DEFS)

dnl not used, don't export to save symbols
    dnl AC_SUBST(ITK_LIB_FILE)

dnl not used outside of configure
dnl    AC_SUBST(ITK_LIBS)
dnl not used, don't export to save symbols
dnl    AC_SUBST(ITK_PREFIX)

dnl not used, don't export to save symbols
dnl    AC_SUBST(ITK_EXEC_PREFIX)

    AC_SUBST(ITK_BUILD_INCLUDES)
    AC_SUBST(ITK_BUILD_LIB_SPEC)
    AC_SUBST(ITK_LIB_SPEC)
])

AC_DEFUN(CY_AC_PATH_ITKH, [
AC_MSG_CHECKING(for Itk private headers. srcdir=${srcdir})
if test x"${ac_cv_c_itkh}" = x ; then
  for i in ${srcdir}/../itcl ${srcdir}/../../itcl ${srcdir}/../../../itcl ${srcdir}/../itcl/itk; do
    if test -f $i/generic/itk.h ; then
      ac_cv_c_itkh=`(cd $i/generic; pwd)`
      break
    fi
  done
fi
if test x"${ac_cv_c_itkh}" = x ; then
  ITKHDIR="# no Itk private headers found"
  AC_MSG_ERROR([Can't find Itk private headers])
fi
if test x"${ac_cv_c_itkh}" != x ; then
     ITKHDIR="-I${ac_cv_c_itkh}"
fi
# should always be here
#     ITKLIB="../itcl/itk/unix/libitk.a"
AC_SUBST(ITKHDIR)
#AC_SUBST(ITKLIB)
])


dnl sinclude(../gettext.m4) already included by bfd/acinclude.m4
dnl The lines below arrange for aclocal not to bring gettext.m4's
dnl CY_GNU_GETTEXT into aclocal.m4.
ifelse(yes,no,[
AC_DEFUN([CY_GNU_GETTEXT],)
])


# Copyright 1996, 1997, 1999, 2000, 2001 Free Software Foundation, Inc.

# 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 2, or (at your option)
# any later version.

# 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.

# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
# 02111-1307, USA.

# serial 1

# @defmac AC_PROG_CC_STDC
# @maindex PROG_CC_STDC
# @ovindex CC
# If the C compiler in not in ANSI C mode by default, try to add an option
# to output variable @code{CC} to make it so.  This macro tries various
# options that select ANSI C on some system or another.  It considers the
# compiler to be in ANSI C mode if it handles function prototypes correctly.
#
# If you use this macro, you should check after calling it whether the C
# compiler has been set to accept ANSI C; if not, the shell variable
# @code{am_cv_prog_cc_stdc} is set to @samp{no}.  If you wrote your source
# code in ANSI C, you can make an un-ANSIfied copy of it by using the
# program @code{ansi2knr}, which comes with Ghostscript.
# @end defmac

AC_DEFUN([AM_PROG_CC_STDC],
[AC_REQUIRE([AC_PROG_CC])
AC_BEFORE([$0], [AC_C_INLINE])
AC_BEFORE([$0], [AC_C_CONST])
dnl Force this before AC_PROG_CPP.  Some cpp's, eg on HPUX, require
dnl a magic option to avoid problems with ANSI preprocessor commands
dnl like #elif.
dnl FIXME: can't do this because then AC_AIX won't work due to a
dnl circular dependency.
dnl AC_BEFORE([$0], [AC_PROG_CPP])
AC_MSG_CHECKING([for ${CC-cc} option to accept ANSI C])
AC_CACHE_VAL(am_cv_prog_cc_stdc,
[am_cv_prog_cc_stdc=no
ac_save_CC="$CC"
# Don't try gcc -ansi; that turns off useful extensions and
# breaks some systems' header files.
# AIX			-qlanglvl=ansi
# Ultrix and OSF/1	-std1
# HP-UX 10.20 and later	-Ae
# HP-UX older versions	-Aa -D_HPUX_SOURCE
# SVR4			-Xc -D__EXTENSIONS__
for ac_arg in "" -qlanglvl=ansi -std1 -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
do
  CC="$ac_save_CC $ac_arg"
  AC_TRY_COMPILE(
[#include <stdarg.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
/* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
struct buf { int x; };
FILE * (*rcsopen) (struct buf *, struct stat *, int);
static char *e (p, i)
     char **p;
     int i;
{
  return p[i];
}
static char *f (char * (*g) (char **, int), char **p, ...)
{
  char *s;
  va_list v;
  va_start (v,p);
  s = g (p, va_arg (v,int));
  va_end (v);
  return s;
}
int test (int i, double x);
struct s1 {int (*f) (int a);};
struct s2 {int (*f) (double a);};
int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
int argc;
char **argv;
], [
return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
],
[am_cv_prog_cc_stdc="$ac_arg"; break])
done
CC="$ac_save_CC"
])
if test -z "$am_cv_prog_cc_stdc"; then
  AC_MSG_RESULT([none needed])
else
  AC_MSG_RESULT([$am_cv_prog_cc_stdc])
fi
case "x$am_cv_prog_cc_stdc" in
  x|xno) ;;
  *) CC="$CC $am_cv_prog_cc_stdc" ;;
esac
])

dnl From Bruno Haible.

AC_DEFUN([AM_ICONV],
[
  dnl Some systems have iconv in libc, some have it in libiconv (OSF/1 and
  dnl those with the standalone portable GNU libiconv installed).

  AC_ARG_WITH([libiconv-prefix],
[  --with-libiconv-prefix=DIR  search for libiconv in DIR/include and DIR/lib], [
    for dir in `echo "$withval" | tr : ' '`; do
      if test -d $dir/include; then CPPFLAGS="$CPPFLAGS -I$dir/include"; fi
      if test -d $dir/lib; then LDFLAGS="$LDFLAGS -L$dir/lib"; fi
    done
   ])

  AC_CACHE_CHECK(for iconv, am_cv_func_iconv, [
    am_cv_func_iconv="no, consider installing GNU libiconv"
    am_cv_lib_iconv=no
    AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
      [iconv_t cd = iconv_open("","");
       iconv(cd,NULL,NULL,NULL,NULL);
       iconv_close(cd);],
      am_cv_func_iconv=yes)
    if test "$am_cv_func_iconv" != yes; then
      am_save_LIBS="$LIBS"
      LIBS="$LIBS -liconv"
      AC_TRY_LINK([#include <stdlib.h>
#include <iconv.h>],
        [iconv_t cd = iconv_open("","");
         iconv(cd,NULL,NULL,NULL,NULL);
         iconv_close(cd);],
        am_cv_lib_iconv=yes
        am_cv_func_iconv=yes)
      LIBS="$am_save_LIBS"
    fi
  ])
  if test "$am_cv_func_iconv" = yes; then
    AC_DEFINE(HAVE_ICONV, 1, [Define if you have the iconv() function.])
    AC_MSG_CHECKING([for iconv declaration])
    AC_CACHE_VAL(am_cv_proto_iconv, [
      AC_TRY_COMPILE([
#include <stdlib.h>
#include <iconv.h>
extern
#ifdef __cplusplus
"C"
#endif
#if defined(__STDC__) || defined(__cplusplus)
size_t iconv (iconv_t cd, char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);
#else
size_t iconv();
#endif
], [], am_cv_proto_iconv_arg1="", am_cv_proto_iconv_arg1="const")
      am_cv_proto_iconv="extern size_t iconv (iconv_t cd, $am_cv_proto_iconv_arg1 char * *inbuf, size_t *inbytesleft, char * *outbuf, size_t *outbytesleft);"])
    am_cv_proto_iconv=`echo "[$]am_cv_proto_iconv" | tr -s ' ' | sed -e 's/( /(/'`
    AC_MSG_RESULT([$]{ac_t:-
         }[$]am_cv_proto_iconv)
    AC_DEFINE_UNQUOTED(ICONV_CONST, $am_cv_proto_iconv_arg1,
      [Define as const if the declaration of iconv() needs const.])
  fi
  LIBICONV=
  if test "$am_cv_lib_iconv" = yes; then
    LIBICONV="-liconv"
  fi
  AC_SUBST(LIBICONV)
])

# AC_GNU_SOURCE
# -------------
# FIXME: Remove thise once we start using Autoconf 2.5x (x>=4).
AC_DEFUN([AC_GNU_SOURCE],
[AC_BEFORE([$0], [AC_TRY_COMPILE])dnl
AC_BEFORE([$0], [AC_TRY_RUN])dnl
AC_DEFINE([_GNU_SOURCE])
])

dnl written by Guido Draheim <guidod@gmx.de>, original by Alexandre Oliva 
dnl Version 1.3 (2001/03/02)
dnl source http://www.gnu.org/software/ac-archive/Miscellaneous/ac_define_dir.html

AC_DEFUN([AC_DEFINE_DIR], [
  test "x$prefix" = xNONE && prefix="$ac_default_prefix"
  test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
  ac_define_dir=`eval echo [$]$2`
  ac_define_dir=`eval echo [$]ac_define_dir`
  ifelse($3, ,
    AC_DEFINE_UNQUOTED($1, "$ac_define_dir"),
    AC_DEFINE_UNQUOTED($1, "$ac_define_dir", $3))
])

dnl See whether we need a declaration for a function.
dnl The result is highly dependent on the INCLUDES passed in, so make sure
dnl to use a different cache variable name in this macro if it is invoked
dnl in a different context somewhere else.
dnl gcc_AC_CHECK_DECL(SYMBOL,
dnl 	[ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND [, INCLUDES]]])
AC_DEFUN(gcc_AC_CHECK_DECL,
[AC_MSG_CHECKING([whether $1 is declared])
AC_CACHE_VAL(gcc_cv_have_decl_$1,
[AC_TRY_COMPILE([$4],
[#ifndef $1
char *(*pfn) = (char *(*)) $1 ;
#endif], eval "gcc_cv_have_decl_$1=yes", eval "gcc_cv_have_decl_$1=no")])
if eval "test \"`echo '$gcc_cv_have_decl_'$1`\" = yes"; then
  AC_MSG_RESULT(yes) ; ifelse([$2], , :, [$2])
else
  AC_MSG_RESULT(no) ; ifelse([$3], , :, [$3])
fi
])dnl

dnl Check multiple functions to see whether each needs a declaration.
dnl Arrange to define HAVE_DECL_<FUNCTION> to 0 or 1 as appropriate.
dnl gcc_AC_CHECK_DECLS(SYMBOLS,
dnl 	[ACTION-IF-NEEDED [, ACTION-IF-NOT-NEEDED [, INCLUDES]]])
AC_DEFUN(gcc_AC_CHECK_DECLS,
[for ac_func in $1
do
changequote(, )dnl
  ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
changequote([, ])dnl
gcc_AC_CHECK_DECL($ac_func,
  [AC_DEFINE_UNQUOTED($ac_tr_decl, 1) $2],
  [AC_DEFINE_UNQUOTED($ac_tr_decl, 0) $3],
dnl It is possible that the include files passed in here are local headers
dnl which supply a backup declaration for the relevant prototype based on
dnl the definition of (or lack of) the HAVE_DECL_ macro.  If so, this test
dnl will always return success.  E.g. see libiberty.h's handling of
dnl `basename'.  To avoid this, we define the relevant HAVE_DECL_ macro to
dnl 1 so that any local headers used do not provide their own prototype
dnl during this test.
#undef $ac_tr_decl
#define $ac_tr_decl 1
  $4
)
done
dnl Automatically generate config.h entries via autoheader.
if test x = y ; then
  patsubst(translit([$1], [a-z], [A-Z]), [\w+],
    [AC_DEFINE([HAVE_DECL_\&], 1,
      [Define to 1 if we found this declaration otherwise define to 0.])])dnl
fi
])


# Add --enable-maintainer-mode option to configure.
# From Jim Meyering

# serial 1

AC_DEFUN(AM_MAINTAINER_MODE,
[AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
  dnl maintainer-mode is disabled by default
  AC_ARG_ENABLE(maintainer-mode,
[  --enable-maintainer-mode enable make rules and dependencies not useful
                          (and sometimes confusing) to the casual installer],
      USE_MAINTAINER_MODE=$enableval,
      USE_MAINTAINER_MODE=no)
  AC_MSG_RESULT($USE_MAINTAINER_MODE)
  AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
  MAINT=$MAINTAINER_MODE_TRUE
  AC_SUBST(MAINT)dnl
]
)

# Define a conditional.

AC_DEFUN(AM_CONDITIONAL,
[AC_SUBST($1_TRUE)
AC_SUBST($1_FALSE)
if $2; then
  $1_TRUE=
  $1_FALSE='#'
else
  $1_TRUE='#'
  $1_FALSE=
fi])