mdw@git.distorted.org.uk Git - cfd/blob - aclocal.glob

   1 dnl -*-fundamental-*-                                     *@--GLOB-HEADER--@*
   2 dnl
   3 dnl $Id: aclocal.glob,v 1.2 1999/05/13 22:57:23 mdw Exp $
   4 dnl
   5 dnl Common library of autoconf macros
   6 dnl
   7 dnl (c) 1997 Mark Wooding, except for macros and documentation where noted.
   8 dnl
   9
  10 dnl----- Licensing notice ---------------------------------------------------
  11 dnl
  12 dnl This file is part of the Common Files Distribution (`common')
  13 dnl
  14 dnl `Common' is free software; you can redistribute it and/or modify
  15 dnl it under the terms of the GNU General Public License as published by
  16 dnl the Free Software Foundation; either version 2 of the License, or
  17 dnl (at your option) any later version.
  18 dnl
  19 dnl `Common' is distributed in the hope that it will be useful,
  20 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  21 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22 dnl GNU General Public License for more details.
  23 dnl
  24 dnl You should have received a copy of the GNU General Public License
  25 dnl along with `common'; if not, write to the Free Software Foundation,
  26 dnl Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  27
  28 dnl----- Revision history ---------------------------------------------------
  29 dnl
  30 dnl $Log: aclocal.glob,v $
  31 dnl Revision 1.2  1999/05/13 22:57:23  mdw
  32 dnl Change `-ise' to `-ize' throughout.
  33 dnl
  34 dnl Revision 1.1.1.1  1999/05/05 19:23:47  mdw
  35 dnl New import.  The old CVS repository was lost in a disk disaster.
  36 dnl
  37
  38 dnl----- Common files distribution --------------------------- *@--NOTICE--@*
  39 dnl
  40 dnl $Id: aclocal.glob,v 1.2 1999/05/13 22:57:23 mdw Exp $
  41
  42 dnl --- *@-AC_PROG_CC_STDC-@* ---
  43 dnl
  44 dnl Author:     Franc,ois Pinard
  45 dnl
  46 dnl Synopsis:   AC_PROG_CC_STDC
  47 dnl
  48 dnl Arguments:  ---
  49 dnl
  50 dnl Use:        If the C compiler in not in ANSI C mode by default, try to
  51 dnl             add an option to output variable `CC' to make it so.  This
  52 dnl             macro tries various options that select ANSI C on some system
  53 dnl             or another.  It considers the compiler to be in ANSI C mode
  54 dnl             if it defines `__STDC__' to 1 and handles function prototypes
  55 dnl             correctly.
  56 dnl
  57 dnl             If you use this macro, you should check after calling it
  58 dnl             whether the C compiler has been set to accept ANSI C; if not,
  59 dnl             the shell variable `ac_cv_prog_cc_stdc' is set to `no'.  If
  60 dnl             you wrote your source code in ANSI C, you can make an
  61 dnl             un-ANSIfied copy of it by using the program `ansi2knr', which
  62 dnl             comes with Ghostscript.
  63 dnl
  64 dnl                                     (documentation by Franc,ois Pinard)
  65
  66 AC_DEFUN(AM_PROG_CC_STDC,
  67 [AC_REQUIRE([AC_PROG_CC])
  68 AC_BEFORE([$0], [AC_C_INLINE])
  69 AC_BEFORE([$0], [AC_C_CONST])
  70 AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C)
  71 AC_CACHE_VAL(am_cv_prog_cc_stdc,
  72 [am_cv_prog_cc_stdc=no
  73 ac_save_CC="$CC"
  74 # Don't try gcc -ansi; that turns off useful extensions and
  75 # breaks some systems' header files.
  76 # AIX                   -qlanglvl=ansi
  77 # Ultrix and OSF/1      -std1
  78 # HP-UX                 -Aa -D_HPUX_SOURCE
  79 # SVR4                  -Xc -D__EXTENSIONS__
  80 for ac_arg in "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
  81 do
  82   CC="$ac_save_CC $ac_arg"
  83   AC_TRY_COMPILE(
  84 [#if !defined(__STDC__) || __STDC__ != 1
  85 choke me
  86 #endif
  87 /* DYNIX/ptx V4.1.3 can't compile sys/stat.h with -Xc -D__EXTENSIONS__. */
  88 #ifdef _SEQUENT_
  89 # include <sys/types.h>
  90 # include <sys/stat.h>
  91 #endif
  92 ], [
  93 int test (int i, double x);
  94 struct s1 {int (*f) (int a);};
  95 struct s2 {int (*f) (double a);};],
  96 [am_cv_prog_cc_stdc="$ac_arg"; break])
  97 done
  98 CC="$ac_save_CC"
  99 ])
 100 if test -z "$am_cv_prog_cc_stdc"; then
 101   AC_MSG_RESULT([none needed])
 102 else
 103   AC_MSG_RESULT($am_cv_prog_cc_stdc)
 104 fi
 105 case "x$am_cv_prog_cc_stdc" in
 106   x|xno) ;;
 107   *) CC="$CC $am_cv_prog_cc_stdc" ;;
 108 esac
 109 ])
 110
 111 dnl----- AutoMake macros ------------------------------------- *@--IGNORE--@*
 112
 113 dnl --- *@-AM_CONDITIONAL-@* ---
 114 dnl
 115 dnl Author:     Unknown
 116 dnl
 117 dnl Synopsis:   AM_CONDITIONAL(NAME, TEST)
 118 dnl
 119 dnl Arguments:  NAME = name of the conditional
 120 dnl             TEST = a shell list to execute
 121 dnl
 122 dnl Use:        Allows conditional sections in Makefiles.
 123
 124 AC_DEFUN(AM_CONDITIONAL,
 125 [AC_SUBST($1_TRUE)
 126 AC_SUBST($1_FALSE)
 127 if $2; then
 128   $1_TRUE=
 129   $1_FALSE='#'
 130 else
 131   $1_TRUE='#'
 132   $1_FALSE=
 133 fi])
 134
 135 dnl --- *@-AM_CYGWIN32-@* ---
 136 dnl
 137 dnl Author:     Cygnus (I guess)
 138 dnl
 139 dnl Synopsis:   AM_CYGWIN32
 140 dnl
 141 dnl Arguments:  ---
 142 dnl
 143 dnl Use:        Check to see if we're running under Cygwin32, without using
 144 dnl             AC_CANONICAL_*.  If so, set output variable EXEEXT to
 145 dnl             ".exe".  Otherwise set it to "".
 146
 147 dnl AM_CYGWIN32()
 148 dnl You might think we can do this by checking for a cygwin32-specific
 149 dnl cpp define.  We can't, because cross-compilers that target
 150 dnl cygwin32 don't use the .exe suffix.  I don't know why.
 151 AC_DEFUN(AM_CYGWIN32,
 152 [AC_CACHE_CHECK(for Cygwin32 environment, am_cv_cygwin32,
 153 [cat > conftest.$ac_ext << 'EOF'
 154 int main () {
 155 /* Nothing.  */
 156 return 0; }
 157 EOF
 158 if AC_TRY_EVAL(ac_link) && test -s conftest.exe; then
 159    am_cv_cygwin32=yes
 160 else
 161    am_cv_cygwin32=no
 162 fi
 163 rm -f conftest*])
 164 EXEEXT=
 165 test "$am_cv_cygwin32" = yes && EXEEXT=.exe
 166 AC_SUBST(EXEEXT)])
 167
 168 dnl --- *@-AM_WITH_DMALLOC-@* ---
 169 dnl
 170 dnl Author:     Franc,ois Pinard
 171 dnl
 172 dnl Synopsis:   AM_WITH_DMALLOC
 173 dnl
 174 dnl Arguments:  ---
 175 dnl
 176 dnl Use:        Links with `-dmalloc' if told to by the user.
 177
 178 ## ----------------------------------- ##
 179 ## Check if --with-dmalloc was given.  ##
 180 ## From Franc,ois Pinard               ##
 181 ## ----------------------------------- ##
 182
 183 # serial 1
 184
 185 AC_DEFUN(AM_WITH_DMALLOC,
 186 [AC_MSG_CHECKING(if malloc debugging is wanted)
 187 AC_ARG_WITH(dmalloc,
 188 [  --with-dmalloc          use dmalloc, as in
 189                           ftp://ftp.letters.com/src/dmalloc/dmalloc.tar.gz],
 190 [if test "$withval" = yes; then
 191   AC_MSG_RESULT(yes)
 192   AC_DEFINE(WITH_DMALLOC)
 193   LIBS="$LIBS -ldmalloc"
 194   LDFLAGS="$LDFLAGS -g"
 195 else
 196   AC_MSG_RESULT(no)
 197 fi], [AC_MSG_RESULT(no)])
 198 ])
 199
 200 dnl --- *@-AM_FUNC_ERROR_AT_LINE-@* ---
 201 dnl
 202 dnl Author:     Jim Meyering
 203 dnl
 204 dnl Synopsis:   AM_FUNC_ERROR_AT_LINE
 205 dnl
 206 dnl Arguments:  ---
 207 dnl
 208 dnl Use:        Use this if you use the GNU error.[ch].
 209
 210 dnl FIXME: Migrate into libit
 211
 212 AC_DEFUN(AM_FUNC_ERROR_AT_LINE,
 213 [AC_CACHE_CHECK([for error_at_line], am_cv_lib_error_at_line,
 214  [AC_TRY_LINK([],[error_at_line(0, 0, "", 0, "");],
 215               am_cv_lib_error_at_line=yes,
 216               am_cv_lib_error_at_line=no)])
 217  if test $am_cv_lib_error_at_line = no; then
 218    LIBOBJS="$LIBOBJS error.o"
 219  fi
 220  AC_SUBST(LIBOBJS)dnl
 221 ])
 222
 223 dnl --- *@-AM_INIT_GUILE_MODULE-@* ---
 224 dnl
 225 dnl Author:     Unknown
 226 dnl
 227 dnl Synopsis:   AM_INIT_GUILE_MODULE(MODNAME)
 228 dnl
 229 dnl Arguments:  MODNAME = value to initialize `module' variable with
 230 dnl
 231 dnl Use:        This macro will automatically get the guile version from the
 232 dnl             top-level srcdir, and will initialize automake.  It also
 233 dnl             defines the `module' variable.
 234
 235 AC_DEFUN([AM_INIT_GUILE_MODULE],[
 236 . $srcdir/../GUILE-VERSION
 237 AM_INIT_AUTOMAKE($PACKAGE, $VERSION)
 238 AC_CONFIG_AUX_DIR(..)
 239 module=[$1]
 240 AC_SUBST(module)])
 241
 242 dnl --- *@-AM_CONFIG_HEADER-@* ---
 243 dnl
 244 dnl Author:     Unknown
 245 dnl
 246 dnl Synopsis:   AM_CONFIG_HEADER(HEADER ...)
 247 dnl
 248 dnl Arguments:  HEADER = a header spec, as for AC_CONFIG_HEADER
 249 dnl
 250 dnl Use:        Like AC_CONFIG_HEADER, but automatically create stamp file.
 251
 252 AC_DEFUN(AM_CONFIG_HEADER,
 253 [AC_PREREQ([2.12])
 254 AC_CONFIG_HEADER([$1])
 255 dnl When config.status generates a header, we must update the stamp-h file.
 256 dnl This file resides in the same directory as the config header
 257 dnl that is generated.  We must strip everything past the first ":",
 258 dnl and everything past the last "/".
 259 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
 260 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
 261 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/
 262 \)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
 263 <<am_indx=1
 264 for am_file in <<$1>>; do
 265   case " <<$>>CONFIG_HEADERS " in
 266   *" <<$>>am_file "*<<)>>
 267     echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
 268     ;;
 269   esac
 270   am_indx=`expr "<<$>>am_indx" + 1`
 271 done<<>>dnl>>)
 272 changequote([,]))])
 273
 274 dnl --- *@-AM_INIT_AUTOMAKE-@*
 275 dnl
 276 dnl Author:     Unknown
 277 dnl
 278 dnl Synopsis:   AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 279 dnl
 280 dnl Arguments:  PACKAGE = package name
 281 dnl             VERSION = version number
 282 dnl             NO-DEFINE = if set, don't define package and version number
 283 dnl
 284 dnl Use:        Do all the work for Automake.  This macro actually does too
 285 dnl             much -- some checks are only needed if your package does
 286 dnl             certain things.  But this isn't really a big deal.
 287
 288 # serial 1
 289
 290 AC_DEFUN(AM_INIT_AUTOMAKE,
 291 [AC_REQUIRE([AM_PROG_INSTALL])
 292 PACKAGE=[$1]
 293 AC_SUBST(PACKAGE)
 294 VERSION=[$2]
 295 AC_SUBST(VERSION)
 296 dnl test to see if srcdir already configured
 297 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
 298   AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 299 fi
 300 ifelse([$3],,
 301 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
 302 AC_DEFINE_UNQUOTED(VERSION, "$VERSION"))
 303 AM_SANITY_CHECK
 304 AC_ARG_PROGRAM
 305 dnl FIXME This is truly gross.
 306 missing_dir=`cd $ac_aux_dir && pwd`
 307 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
 308 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
 309 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
 310 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
 311 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
 312 AC_PROG_MAKE_SET])
 313
 314 dnl --- *@-AM_PROG_INSTALL-@* ---
 315 dnl
 316 dnl Author:     Franc,ois Pinard
 317 dnl
 318 dnl Synopsis:   AM_PROG_INSTALL
 319 dnl
 320 dnl Arguments:  ---
 321 dnl
 322 dnl Use:        Calls `AC_PROG_INSTALL' to find an installer.  Then it sets
 323 dnl             `INSTALL_SCRIPT' to a suitable value if necessary.
 324
 325 # serial 1
 326
 327 AC_DEFUN(AM_PROG_INSTALL,
 328 [AC_PROG_INSTALL
 329 test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL} -m 755'
 330 AC_SUBST(INSTALL_SCRIPT)dnl
 331 ])
 332
 333 dnl --- *@-AM_PROG_LEX-@* ---
 334 dnl
 335 dnl Author:     Alexandre Oliva
 336 dnl
 337 dnl Synopsis:   AM_PROG_LEX
 338 dnl
 339 dnl Arguments:  ---
 340 dnl
 341 dnl Use:        Replacement for AC_PROG_LEX and AC_DECL_YYTEXT
 342
 343 dnl AM_PROG_LEX
 344 dnl Look for flex, lex or missing, then run AC_PROG_LEX and AC_DECL_YYTEXT
 345 AC_DEFUN(AM_PROG_LEX,
 346 [missing_dir=ifelse([$1],,`cd $ac_aux_dir && pwd`,$1)
 347 AC_CHECK_PROGS(LEX, flex lex, "$missing_dir/missing flex")
 348 AC_PROG_LEX
 349 AC_DECL_YYTEXT])
 350
 351 dnl --- *@-AM_PROG_LIBTOOL-@* ---
 352 dnl
 353 dnl Author:     Unknown
 354 dnl
 355 dnl Synopsis:   AM_PROG_LIBTOOL
 356 dnl
 357 dnl Arguments:  ---
 358 dnl
 359 dnl Use:        Configures `libtool' for the target architecture.
 360
 361 ##
 362 ## Configure libtool for the target system.
 363 ##
 364 # serial 1 AM_PROG_LIBTOOL
 365 AC_DEFUN(AM_PROG_LIBTOOL,
 366 [AC_REQUIRE([AC_CANONICAL_HOST])
 367 AC_REQUIRE([AC_PROG_CC])
 368 AC_REQUIRE([AC_PROG_RANLIB])
 369
 370 # Always use our own libtool.
 371 LIBTOOL='$(top_builddir)/libtool'
 372 AC_SUBST(LIBTOOL)
 373
 374 dnl Allow the --disable-shared flag to stop us from building shared libs.
 375 AC_ARG_ENABLE(shared,
 376 [  --enable-shared         build shared libraries [default=yes]],
 377 test "$enableval" = no && libtool_shared=" --disable-shared",
 378 libtool_shared=)
 379
 380 libtool_flags="$libtool_shared"
 381 test "$silent" = yes && libtool_flags="$libtool_flags --silent"
 382 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
 383
 384 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
 385 CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" LD="$LD" RANLIB="$RANLIB" \
 386 $ac_aux_dir/ltconfig $libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
 387 || AC_MSG_ERROR([libtool configure failed])
 388 ])
 389
 390 dnl --- *@-AM_PATH_LISPDIR-@* ---
 391 dnl
 392 dnl Author:     Ulrich Drepper
 393 dnl
 394 dnl Synopsis:   AM_PATH_LISPDIR
 395 dnl
 396 dnl Arguments:  ---
 397 dnl
 398 dnl Use:        Sets the variable `lispdir' to point to a place to install
 399 dnl             Emacs lisp files.
 400
 401 ## ------------------------
 402 ## Emacs LISP file handling
 403 ## From Ulrich Drepper
 404 ## ------------------------
 405
 406 # serial 1
 407
 408 AC_DEFUN(AM_PATH_LISPDIR,
 409  [# If set to t, that means we are running in a shell under Emacs.
 410   # If you have an Emacs named "t", then use the full path.
 411   test "$EMACS" = t && EMACS=
 412   AC_PATH_PROG(EMACS, emacs xemacs, no)
 413   if test $EMACS != "no"; then
 414     AC_MSG_CHECKING([where .elc files should go])
 415     dnl Set default value
 416     lispdir="\$(datadir)/emacs/site-lisp"
 417     if test "x$prefix" = "xNONE"; then
 418       if test -d $ac_default_prefix/share/emacs/site-lisp; then
 419         lispdir="\$(prefix)/share/emacs/site-lisp"
 420       else
 421         if test -d $ac_default_prefix/lib/emacs/site-lisp; then
 422           lispdir="\$(prefix)/lib/emacs/site-lisp"
 423         fi
 424       fi
 425     else
 426       if test -d $prefix/share/emacs/site-lisp; then
 427         lispdir="\$(prefix)/share/emacs/site-lisp"
 428       else
 429         if test -d $prefix/lib/emacs/site-lisp; then
 430           lispdir="\$(prefix)/lib/emacs/site-lisp"
 431         fi
 432       fi
 433     fi
 434     AC_MSG_RESULT($lispdir)
 435   fi
 436   AC_SUBST(lispdir)])
 437
 438 dnl --- *@-AM_MAINTAINTER_MODE-@* ---
 439 dnl
 440 dnl Author:     Jim Meyering
 441 dnl
 442 dnl Synopsis:   jm_MAINTAINER_MODE
 443 dnl
 444 dnl Arguments:  ---
 445 dnl
 446 dnl Use:        Provides an option `--enable-maintainer-mode' which turns
 447 dnl             on rules which might normally be commented out.  The
 448 dnl             substitution variable `MAINT' is set to be a comment when
 449 dnl             this option is disabled, which it is by default.
 450
 451 # serial 1
 452
 453 AC_DEFUN(AM_MAINTAINER_MODE,
 454 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 455   dnl maintainer-mode is disabled by default
 456   AC_ARG_ENABLE(maintainer-mode,
 457 [  --enable-maintainer-mode enable make rules and dependencies not useful
 458                           (and sometimes confusing) to the casual installer],
 459       USE_MAINTAINER_MODE=$enableval,
 460       USE_MAINTAINER_MODE=no)
 461   AC_MSG_RESULT($USE_MAINTAINER_MODE)
 462   if test $USE_MAINTAINER_MODE = yes; then
 463     MAINT=
 464   else
 465     MAINT='#M#'
 466   fi
 467   AC_SUBST(MAINT)dnl
 468 ]
 469 )
 470
 471 dnl --- *@-AM_MISSING_PROG-@* ---
 472 dnl
 473 dnl Author:     Unknown
 474 dnl
 475 dnl Synopsis:   AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
 476 dnl
 477 dnl Arguments:  NAME = variable to set to the file's location
 478 dnl             PROGRAM = name of program to find
 479 dnl             DIRECTORY = directory to look in
 480 dnl
 481 dnl Use:        Fakes existence of a useful GNU maintainer tool.
 482
 483 AC_DEFUN(AM_MISSING_PROG,
 484 [AC_MSG_CHECKING(for working $2)
 485 # Run test in a subshell; some versions of sh will print an error if
 486 # an executable is not found, even if stderr is redirected.
 487 # Redirect stdin to placate older versions of autoconf.  Sigh.
 488 if ($2 --version) < /dev/null > /dev/null 2>&1; then
 489    $1=$2
 490    AC_MSG_RESULT(found)
 491 else
 492    $1="$3/missing $2"
 493    AC_MSG_RESULT(missing)
 494 fi
 495 AC_SUBST($1)])
 496
 497 dnl --- *@-AM_FUNC_MKTIME-@* ---
 498 dnl
 499 dnl Author:     Jim Meyering
 500 dnl
 501 dnl Synopsis:   AM_FUNC_MKTIME
 502 dnl
 503 dnl Arguments:  ---
 504 dnl
 505 dnl Use:        Checks for a working mktime function.
 506
 507 AC_DEFUN(AM_FUNC_MKTIME,
 508 [AC_REQUIRE([AC_HEADER_TIME])dnl
 509  AC_CHECK_HEADERS(sys/time.h)
 510  AC_CACHE_CHECK([for working mktime], am_cv_func_working_mktime,
 511   [AC_TRY_RUN(
 512 changequote(<<, >>)dnl
 513 <</* Test program from Paul Eggert (eggert@twinsun.com)
 514    and Tony Leneis (tony@plaza.ds.adp.com).  */
 515 #if TIME_WITH_SYS_TIME
 516 # include <sys/time.h>
 517 # include <time.h>
 518 #else
 519 # if HAVE_SYS_TIME_H
 520 #  include <sys/time.h>
 521 # else
 522 #  include <time.h>
 523 # endif
 524 #endif
 525
 526 static time_t time_t_max;
 527
 528 /* Values we'll use to set the TZ environment variable.  */
 529 static const char *const tz_strings[] = {
 530   NULL, "GMT0", "JST-9", "EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00"
 531 };
 532 #define N_STRINGS (sizeof (tz_strings) / sizeof (tz_strings[0]))
 533
 534 static void
 535 mktime_test (now)
 536      time_t now;
 537 {
 538   if (mktime (localtime (&now)) != now)
 539     exit (1);
 540   now = time_t_max - now;
 541   if (mktime (localtime (&now)) != now)
 542     exit (1);
 543 }
 544
 545 int
 546 main ()
 547 {
 548   time_t t, delta;
 549   int i;
 550
 551   for (time_t_max = 1; 0 < time_t_max; time_t_max *= 2)
 552     continue;
 553   time_t_max--;
 554   delta = time_t_max / 997; /* a suitable prime number */
 555   for (i = 0; i < N_STRINGS; i++)
 556     {
 557       if (tz_strings[i])
 558         putenv (tz_strings[i]);
 559
 560       for (t = 0; t <= time_t_max - delta; t += delta)
 561         mktime_test (t);
 562       mktime_test ((time_t) 60 * 60);
 563       mktime_test ((time_t) 60 * 60 * 24);
 564     }
 565   exit (0);
 566 }
 567               >>,
 568 changequote([, ])dnl
 569              am_cv_func_working_mktime=yes, am_cv_func_working_mktime=no,
 570              dnl When crosscompiling, assume mktime is missing or broken.
 571              am_cv_func_working_mktime=no)
 572   ])
 573   if test $am_cv_func_working_mktime = no; then
 574     LIBOBJS="$LIBOBJS mktime.o"
 575   fi
 576 ])
 577
 578 dnl --- *@-AM_FUNC_OBSTACK-@* ---
 579 dnl
 580 dnl Author:     Jim Meyering
 581 dnl
 582 dnl Synopsis:   AM_FUNC_OBSTACK
 583 dnl
 584 dnl Arguments:  ---
 585 dnl
 586 dnl Use:        Checks for GNU obstacks.
 587
 588 AC_DEFUN(AM_FUNC_OBSTACK,
 589 [AC_CACHE_CHECK([for obstacks], am_cv_func_obstack,
 590  [AC_TRY_LINK([#include "obstack.h"],
 591               [struct obstack *mem;obstack_free(mem,(char *) 0)],
 592               am_cv_func_obstack=yes,
 593               am_cv_func_obstack=no)])
 594  if test $am_cv_func_obstack = yes; then
 595    AC_DEFINE(HAVE_OBSTACK)
 596  else
 597    LIBOBJS="$LIBOBJS obstack.o"
 598  fi
 599 ])
 600
 601 dnl --- *@-AC_C_PROTOTYPES-@* ---
 602 dnl
 603 dnl Author:     Franc,ois Pinard
 604 dnl
 605 dnl Synopsis:   AC_C_PROTOTYPES
 606 dnl
 607 dnl Arguments:  ---
 608 dnl
 609 dnl Use:        If the C compiler understands ANSI C, define `PROTOTYPES',
 610 dnl             and clear the `U' and `ANSI2KNR' variables.  Otherwise,
 611 dnl             set `U' to be `_' and `ANSI2KNR' to be `./ansi2knr'.
 612
 613 # serial 1
 614
 615 AC_DEFUN(fp_C_PROTOTYPES,
 616 [AC_REQUIRE([fp_PROG_CC_STDC])
 617 AC_MSG_CHECKING([for function prototypes])
 618 if test "$ac_cv_prog_cc_stdc" != no; then
 619   AC_MSG_RESULT(yes)
 620   AC_DEFINE(PROTOTYPES)
 621   U= ANSI2KNR=
 622 else
 623   AC_MSG_RESULT(no)
 624   U=_ ANSI2KNR=./ansi2knr
 625 fi
 626 AC_SUBST(U)dnl
 627 AC_SUBST(ANSI2KNR)dnl
 628 ])
 629
 630 dnl --- *@-AM_PATH_GTK-@* ---
 631 dnl
 632 dnl Author:     Owen Taylor
 633 dnl
 634 dnl Synopsis:   AM_PATH_GTK(MIN-VERSION, [ACTION-IF-FOUND], [ACTION-IF-NOT])
 635 dnl
 636 dnl Arguments:  MIN-VERSION = minimum version of GTK required
 637 dnl             ACTION-IF-FOUND = executed if GTK found OK
 638 dnl             ACTION-IF-NOT-FOUND = what to do if GTK not available
 639 dnl
 640 dnl Use:        Sets up compilation environment suitably for GTK programming.
 641
 642 # Configure paths for GTK+
 643 # Owen Taylor     97-11-3
 644
 645 dnl AM_PATH_GTK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 646 dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS
 647 dnl
 648 AC_DEFUN(AM_PATH_GTK,
 649 [dnl
 650 dnl Get the cflags and libraries from the gtk-config script
 651 dnl
 652 AC_ARG_WITH(gtk-prefix,[  --with-gtk-prefix=PFX   Prefix where GTK is installed (optional)],
 653             gtk_config_prefix="$withval", gtk_config_prefix="")
 654 AC_ARG_WITH(gtk-exec-prefix,[  --with-gtk-exec-prefix=PFX Exec prefix where GTK is installed (optional)],
 655             gtk_config_exec_prefix="$withval", gtk_config_exec_prefix="")
 656 AC_ARG_ENABLE(gtktest, [  --disable-gtktest       Do not try to compile and run a test GTK program],
 657                     , enable_gtktest=yes)
 658
 659   if test x$gtk_config_exec_prefix != x ; then
 660      gtk_config_args="$gtk_config_args --exec-prefix=$gtk_config_exec_prefix"
 661      if test x${GTK_CONFIG+set} != xset ; then
 662         GTK_CONFIG=$gtk_config_exec_prefix/bin/gtk-config
 663      fi
 664   fi
 665   if test x$gtk_config_prefix != x ; then
 666      gtk_config_args="$gtk_config_args --prefix=$gtk_config_prefix"
 667      if test x${GTK_CONFIG+set} != xset ; then
 668         GTK_CONFIG=$gtk_config_prefix/bin/gtk-config
 669      fi
 670   fi
 671
 672   AC_PATH_PROG(GTK_CONFIG, gtk-config, no)
 673   min_gtk_version=ifelse([$1], ,0.99.7,$1)
 674   AC_MSG_CHECKING(for GTK - version >= $min_gtk_version)
 675   no_gtk=""
 676   if test "$GTK_CONFIG" = "no" ; then
 677     no_gtk=yes
 678   else
 679     GTK_CFLAGS=`$GTK_CONFIG $gtk_config_args --cflags`
 680     GTK_LIBS=`$GTK_CONFIG $gtk_config_args --libs`
 681     gtk_config_major_version=`$GTK_CONFIG $gtk_config_args --version | \
 682            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
 683     gtk_config_minor_version=`$GTK_CONFIG $gtk_config_args --version | \
 684            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
 685     gtk_config_micro_version=`$GTK_CONFIG $gtk_config_args --version | \
 686            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
 687     if test "x$enable_gtktest" = "xyes" ; then
 688       ac_save_CFLAGS="$CFLAGS"
 689       ac_save_LIBS="$LIBS"
 690       CFLAGS="$CFLAGS $GTK_CFLAGS"
 691       LIBS="$LIBS $GTK_LIBS"
 692 dnl
 693 dnl Now check if the installed GTK is sufficiently new. (Also sanity
 694 dnl checks the results of gtk-config to some extent
 695 dnl
 696       rm -f conf.gtktest
 697       AC_TRY_RUN([
 698 #include <gtk/gtk.h>
 699 #include <stdio.h>
 700
 701 int
 702 main ()
 703 {
 704   int major, minor, micro;
 705   char *tmp_version;
 706
 707   system ("touch conf.gtktest");
 708
 709   /* HP/UX 9 (%@#!) writes to sscanf strings */
 710   tmp_version = g_strdup("$min_gtk_version");
 711   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
 712      printf("%s, bad version string\n", "$min_gtk_version");
 713      exit(1);
 714    }
 715
 716   if ((gtk_major_version != $gtk_config_major_version) ||
 717       (gtk_minor_version != $gtk_config_minor_version) ||
 718       (gtk_micro_version != $gtk_config_micro_version))
 719     {
 720       printf("\n*** 'gtk-config --version' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n",
 721              $gtk_config_major_version, $gtk_config_minor_version, $gtk_config_micro_version,
 722              gtk_major_version, gtk_minor_version, gtk_micro_version);
 723       printf ("*** was found! If gtk-config was correct, then it is best\n");
 724       printf ("*** to remove the old version of GTK+. You may also be able to fix the error\n");
 725       printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
 726       printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
 727       printf("*** required on your system.\n");
 728       printf("*** If gtk-config was wrong, set the environment variable GTK_CONFIG\n");
 729       printf("*** to point to the correct copy of gtk-config, and remove the file config.cache\n");
 730       printf("*** before re-running configure\n");
 731     }
 732   else
 733     {
 734       if ((gtk_major_version > major) ||
 735         ((gtk_major_version == major) && (gtk_minor_version > minor)) ||
 736         ((gtk_major_version == major) && (gtk_minor_version == minor) && (gtk_micro_version >= micro)))
 737       {
 738         return 0;
 739        }
 740      else
 741       {
 742         printf("\n*** An old version of GTK+ (%d.%d.%d) was found.\n",
 743                gtk_major_version, gtk_minor_version, gtk_micro_version);
 744         printf("*** You need a version of GTK+ newer than %d.%d.%d. The latest version of\n",
 745                major, minor, micro);
 746         printf("*** GTK+ is always available from ftp://ftp.gtk.org.\n");
 747         printf("***\n");
 748         printf("*** If you have already installed a sufficiently new version, this error\n");
 749         printf("*** probably means that the wrong copy of the gtk-config shell script is\n");
 750         printf("*** being found. The easiest way to fix this is to remove the old version\n");
 751         printf("*** of GTK+, but you can also set the GTK_CONFIG environment to point to the\n");
 752         printf("*** correct copy of gtk-config. (In this case, you will have to\n");
 753         printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
 754         printf("*** so that the correct libraries are found at run-time))\n");
 755       }
 756     }
 757   return 1;
 758 }
 759 ],, no_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
 760        CFLAGS="$ac_save_CFLAGS"
 761        LIBS="$ac_save_LIBS"
 762      fi
 763   fi
 764   if test "x$no_gtk" = x ; then
 765      AC_MSG_RESULT(yes)
 766      ifelse([$2], , :, [$2])
 767   else
 768      AC_MSG_RESULT(no)
 769      if test "$GTK_CONFIG" = "no" ; then
 770        echo "*** The gtk-config script installed by GTK could not be found"
 771        echo "*** If GTK was installed in PREFIX, make sure PREFIX/bin is in"
 772        echo "*** your path, or set the GTK_CONFIG environment variable to the"
 773        echo "*** full path to gtk-config."
 774      else
 775        if test -f conf.gtktest ; then
 776         :
 777        else
 778           echo "*** Could not run GTK test program, checking why..."
 779           CFLAGS="$CFLAGS $GTK_CFLAGS"
 780           LIBS="$LIBS $GTK_LIBS"
 781           AC_TRY_LINK([
 782 #include <gtk/gtk.h>
 783 #include <stdio.h>
 784 ],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
 785         [ echo "*** The test program compiled, but did not run. This usually means"
 786           echo "*** that the run-time linker is not finding GTK or finding the wrong"
 787           echo "*** version of GTK. If it is not finding GTK, you'll need to set your"
 788           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
 789           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
 790           echo "*** is required on your system"
 791           echo "***"
 792           echo "*** If you have an old version installed, it is best to remove it, although"
 793           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
 794           echo "***"
 795           echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
 796           echo "*** came with the system with the command"
 797           echo "***"
 798           echo "***    rpm --erase --nodeps gtk gtk-devel" ],
 799         [ echo "*** The test program failed to compile or link. See the file config.log for the"
 800           echo "*** exact error that occured. This usually means GTK was incorrectly installed"
 801           echo "*** or that you have moved GTK since it was installed. In the latter case, you"
 802           echo "*** may want to edit the gtk-config script: $GTK_CONFIG" ])
 803           CFLAGS="$ac_save_CFLAGS"
 804           LIBS="$ac_save_LIBS"
 805        fi
 806      fi
 807      GTK_CFLAGS=""
 808      GTK_LIBS=""
 809      ifelse([$3], , :, [$3])
 810   fi
 811   AC_SUBST(GTK_CFLAGS)
 812   AC_SUBST(GTK_LIBS)
 813   rm -f conf.gtktest
 814 ])
 815
 816 dnl --- *@-AC_TYPE_PTRDIFF_T-@* ---
 817 dnl
 818 dnl Author:     Ulrich Drepper
 819 dnl
 820 dnl Synopsis:   AC_TYPE_PTRDIFF_T
 821 dnl
 822 dnl Arguments:  ---
 823 dnl
 824 dnl Use:        Sets HAVE_PTRDIFF_T if the type exists.
 825
 826 AC_DEFUN(AM_TYPE_PTRDIFF_T,
 827   [AC_CACHE_CHECK([for ptrdiff_t], am_cv_type_ptrdiff_t,
 828      [AC_TRY_COMPILE([#include <stddef.h>], [ptrdiff_t p],
 829                      am_cv_type_ptrdiff_t=yes, am_cv_type_ptrdiff_t=no)])
 830    if test $am_cv_type_ptrdiff_t = yes; then
 831      AC_DEFINE(HAVE_PTRDIFF_T)
 832    fi
 833 ])
 834
 835 dnl --- *@-AM_WITH_REGEX-@* ---
 836 dnl
 837 dnl Author:     Unknown (possibly Franc,ois Pinard)
 838 dnl
 839 dnl Synopsis:   AM_WITH_REGEX
 840 dnl
 841 dnl Arguments:  ---
 842 dnl
 843 dnl Use:
 844 dnl             The idea is to distribute rx.[hc] and regex.[hc] together,
 845 dnl             for a while.  The WITH_REGEX symbol (which should also be
 846 dnl             documented in acconfig.h) is used to decide which of regex.h
 847 dnl             or rx.h should be included in the application.  If
 848 dnl             `./configure --with-regex' is given (the default), the
 849 dnl             package will use gawk's regex.  If `./configure
 850 dnl             --without-regex', a check is made to see if rx is already
 851 dnl             installed, as with newer Linux'es.  If not found, the package
 852 dnl             will use the rx from the distribution.  If found, the package
 853 dnl             will use the system's rx which, on Linux at least, will
 854 dnl             result in a smaller executable file.
 855
 856 AC_DEFUN(AM_WITH_REGEX,
 857 [AC_MSG_CHECKING(which of GNU rx or gawk's regex is wanted)
 858 AC_ARG_WITH(regex,
 859 [  --without-regex         use GNU rx in lieu of gawk's regex for matching],
 860 [test "$withval" = yes && am_with_regex=1],
 861 [am_with_regex=1])
 862 if test -n "$am_with_regex"; then
 863   AC_MSG_RESULT(regex)
 864   AC_DEFINE(WITH_REGEX)
 865   AC_CACHE_CHECK([for GNU regex in libc], am_cv_gnu_regex,
 866     AC_TRY_LINK([], [extern int re_max_failures; re_max_failures = 1],
 867                 am_cv_gnu_regex=yes, am_cv_gnu_regex=no))
 868   if test $am_cv_gnu_regex = no; then
 869     LIBOBJS="$LIBOBJS regex.o"
 870   fi
 871 else
 872   AC_MSG_RESULT(rx)
 873   AC_CHECK_FUNC(re_rx_search, , [LIBOBJS="$LIBOBJS rx.o"])
 874 fi
 875 AC_SUBST(LIBOBJS)dnl
 876 ])
 877
 878 dnl --- *@-AM_SANITY_CHECK-@*
 879 dnl
 880 dnl Author:     Unknown
 881 dnl
 882 dnl Synopsis:   AM_SANITY_CHECK
 883 dnl
 884 dnl Arguments:  ---
 885 dnl
 886 dnl Use:        Check for build environment sanity.
 887
 888 AC_DEFUN(AM_SANITY_CHECK,
 889 [AC_MSG_CHECKING([whether build environment is sane])
 890 # Just in case
 891 sleep 1
 892 echo timestamp > conftestfile
 893 # Do `set' in a subshell so we don't clobber the current shell's
 894 # arguments.  Must try -L first in case configure is actually a
 895 # symlink; some systems play weird games with the mod time of symlinks
 896 # (eg FreeBSD returns the mod time of the symlink's containing
 897 # directory).
 898 if (
 899    set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
 900    if test "$@" = "X"; then
 901       # -L didn't work.
 902       set X `ls -t $srcdir/configure conftestfile`
 903    fi
 904    test "[$]2" = conftestfile
 905    )
 906 then
 907    # Ok.
 908    :
 909 else
 910    AC_MSG_ERROR([newly created file is older than distributed files!
 911 Check your system clock])
 912 fi
 913 rm -f conftest*
 914 AC_MSG_RESULT(yes)])
 915
 916 dnl --- *@-AM_FUNC_STRDOD-@* ---
 917 dnl
 918 dnl Author:     Jim Meyering
 919 dnl
 920 dnl Synopsis:   AM_FUNC_STRTOD
 921 dnl
 922 dnl Arguments:  ---
 923 dnl
 924 dnl Use:        Checks for a working strtod function.
 925
 926 ## Copyright (C) 1996 Free Software Foundation, Inc.
 927
 928 ## This program is free software; you can redistribute it and/or modify
 929 ## it under the terms of the GNU General Public License as published by
 930 ## the Free Software Foundation; either version 2, or (at your option)
 931 ## any later version.
 932
 933 ## This program is distributed in the hope that it will be useful,
 934 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
 935 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 936 ## GNU General Public License for more details.
 937
 938 ## You should have received a copy of the GNU General Public License
 939 ## along with this program; if not, write to the Free Software
 940 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 941 ## 02111-1307, USA.
 942
 943 ## From Jim Meyering.
 944
 945 ## serial 1
 946
 947 ## @defmac AC_FUNC_STRTOD
 948 ## @maindex FUNC_STRTOD
 949 ## @ovindex LIBOBJS
 950 ## If the @code{strtod} function is not available, or does not work
 951 ## correctly (like the one on SunOS 5.4), add @samp{strtod.o} to output
 952 ## variable @code{LIBOBJS}.
 953 ## @end defmac
 954
 955 AC_DEFUN(AM_FUNC_STRTOD,
 956 [AC_CACHE_CHECK(for working strtod, am_cv_func_strtod,
 957 [AC_TRY_RUN([
 958 double strtod ();
 959 int
 960 main()
 961 {
 962   {
 963     /* Some versions of Linux strtod mis-parse strings with leading '+'.  */
 964     char *string = " +69";
 965     char *term;
 966     double value;
 967     value = strtod (string, &term);
 968     if (value != 69 || term != (string + 4))
 969       exit (1);
 970   }
 971
 972   {
 973     /* Under Solaris 2.4, strtod returns the wrong value for the
 974        terminating character under some conditions.  */
 975
 976 ## @defmac AC_FUNC_STRTOD
 977 ## @maindex FUNC_STRTOD
 978 ## @ovindex LIBOBJS
 979 ## If the @code{strtod} function is not available, or does not work
 980 ## correctly (like the one on SunOS 5.4), add @samp{strtod.o} to output
 981 ## variable @code{LIBOBJS}.
 982 ## @end defmac
 983
 984 AC_DEFUN(AM_FUNC_STRTOD,
 985 [AC_CACHE_CHECK(for working strtod, am_cv_func_strtod,
 986 [AC_TRY_RUN([
 987 double strtod ();
 988 int
 989 main()
 990 {
 991   {
 992     /* Some versions of Linux strtod mis-parse strings with leading '+'.  */
 993     char *string = " +69";
 994     char *term;
 995     double value;
 996     value = strtod (string, &term);
 997     if (value != 69 || term != (string + 4))
 998       exit (1);
 999   }
1000
1001   {
1002     /* Under Solaris 2.4, strtod returns the wrong value for the
1003        terminating character under some conditions.  */
1004     char *string = "NaN";
1005     char *term;
1006     strtod (string, &term);
1007     if (term != string && *(term - 1) == 0)
1008       exit (1);
1009   }
1010   exit (0);
1011 }
1012 ], am_cv_func_strtod=yes, am_cv_func_strtod=no, am_cv_func_strtod=no)])
1013 test $am_cv_func_strtod = no && LIBOBJS="$LIBOBJS strtod.o"
1014 AC_SUBST(LIBOBJS)dnl
1015 am_cv_func_strtod_needs_libm=no
1016 if test $am_cv_func_strtod = no; then
1017   AC_CHECK_FUNCS(pow)
1018   if test $ac_cv_func_pow = no; then
1019     AC_CHECK_LIB(m, pow, [am_cv_func_strtod_needs_libm=yes],
1020                  [AC_MSG_WARN(can't find library containing definition of pow)])
1021   fi
1022 fi
1023 ])
1024
1025 dnl --- *@-AM_SYS_POSIX_TERMIOS-@* ---
1026 dnl
1027 dnl Author:     Jim Meyering
1028 dnl
1029 dnl Synopsis:   AM_SYS_POSIX_TERMIOS
1030 dnl
1031 dnl Arguments:  ---
1032 dnl
1033 dnl Use:        Checks for a POSIX termios.h.
1034
1035 AC_DEFUN(AM_SYS_POSIX_TERMIOS,
1036 [AC_CACHE_CHECK([POSIX termios], am_cv_sys_posix_termios,
1037   [AC_TRY_LINK([#include <sys/types.h>
1038 #include <unistd.h>
1039 #include <termios.h>],
1040   [/* SunOS 4.0.3 has termios.h but not the library calls.  */
1041    tcgetattr(0, 0);],
1042   am_cv_sys_posix_termios=yes,
1043   am_cv_sys_posix_termios=no)])
1044 ])
1045
1046 dnl----- Macros by Mark Wooding ------------------------------ *@--IGNORE--@*
1047
1048 dnl --- *@-mdw_REQUIRE-@* ---
1049 dnl
1050 dnl Author:     Mark Wooding
1051 dnl
1052 dnl Synopsis:   mdw_REQUIRE(MACRO, ARGS...)
1053 dnl
1054 dnl Arguments:  MACRO = name of a macro which should have been called
1055 dnl             ARGS = arguments to pass
1056 dnl
1057 dnl Use:        Like `AC_REQUIRE', only it handles arguments.
1058
1059 AC_DEFUN(mdw_REQUIRE,
1060 [ifdef([AC_PROVIDED_$1], ,
1061 [AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))dnl
1062 indir($@)
1063 AC_DIVERT_POP()dnl
1064 ])])
1065
1066 dnl --- *@-mdw_CHECK_MANYLIBS-@* ---
1067 dnl
1068 dnl Author:     Mark Wooding
1069 dnl
1070 dnl Synopsis:   mdw_CHECK_MANYLIBS(FUNC, LIBS, [IF-FOUND], [IF-NOT-FOUND])
1071 dnl
1072 dnl Arguments:  FUNC = a function to try to find
1073 dnl             LIBS = a whitespace-separated list of libraries to search
1074 dnl             IF-FOUND = what to do when the function is found
1075 dnl             IF-NOT-FOUND = what to do when the function isn't found
1076 dnl
1077 dnl Use:        Searches for a library which defines FUNC.  It first tries
1078 dnl             without any libraries; then it tries each library specified
1079 dnl             in LIBS in turn.  If it finds a match, it adds the
1080 dnl             appropriate library to `LIBS'.
1081 dnl
1082 dnl             This is particularly handy under DIREIX: if you link with
1083 dnl             `-lnsl' then you get non-NIS-aware versions of getpwnam and
1084 dnl             so on, which is clearly a Bad Thing.
1085
1086 AC_DEFUN(mdw_CHECK_MANYLIBS,
1087 [AC_CACHE_CHECK([for library containing $1], [mdw_cv_lib_$1],
1088 [mdw_save_LIBS="$LIBS"
1089 mdw_cv_lib_$1="no"
1090 AC_TRY_LINK(,[$1()], [mdw_cv_lib_$1="none required"])
1091 test "$mdw_cv_lib_$1" = "no" && for i in $2; do
1092 LIBS="-l$i $mdw_save_LIBS"
1093 AC_TRY_LINK(,[$1()],
1094 [mdw_cv_lib_$1="-l$i"
1095 break])
1096 done
1097 LIBS="$mdw_save_LIBS"])
1098 if test "$mdw_cv_lib_$1" != "no"; then
1099   test "$mdw_cv_lib_$1" = "none required" || LIBS="$mdw_cv_lib_$1 $LIBS"
1100   $3
1101 else :
1102   $4
1103 fi])
1104
1105 dnl --- *@-mdw__PERL_VERSION-@* ---
1106 dnl
1107 dnl AC_DEFUN relies on `[', `]' being quotes, so I have to drop down a level.
1108
1109 changequote(<<, >>)
1110 define(mdw__PERL_VERSION, <<$1 -e 'exit ($] < $2);' >&5 2>&5>>)
1111 changequote([, ])
1112
1113 dnl --- *@-mdw_PROG_PERL-@* ---
1114 dnl
1115 dnl Author:     Mark Wooding
1116 dnl
1117 dnl Synopsis:   mdw_PROG_PERL(VERSION, [IF-FOUND], [IF-NOT-FOUND])
1118 dnl
1119 dnl Arguments:  VERSION = version number of Perl required
1120 dnl             IF-FOUND = what to do if it's found
1121 dnl             IF-NOT-FOUND = what to do if it isn't
1122 dnl
1123 dnl Use:        Attempts to find a working version of Perl with a late
1124 dnl             enough version number.  It supplies an option `--with-perl'
1125 dnl             to allow the user to provide a Perl interpreter.  If one
1126 dnl             isn't provided explicitly, it searches for `perl' and `perl5'
1127 dnl             in the current PATH, asking them whether they have a late
1128 dnl             enough version number.  The path of the working Perl is
1129 dnl             put into the `PERL' environment variable; `AC_SUBST' is used
1130 dnl             to substitute its value into Perl scripts.  If there is no
1131 dnl             Perl to be found, the value of `PERL' is set to be `none'.
1132
1133 AC_DEFUN(mdw_PROG_PERL,
1134 [AC_ARG_WITH([perl],
1135 [  --with-perl=PERL       specify path to Perl version $1 or newer],
1136 [PERL="$withval"],
1137 if test -z "$PERL"; then
1138 [AC_CACHE_CHECK([for Perl version $1 or later], mdw_cv_prog_perl,
1139 [mdw_cv_prog_perl="none"
1140 for p in `echo "$PATH:/usr/local/bin" | tr ":" " "`; do
1141   case $p in /*) ;; *) p=`pwd`/$p ;; esac
1142   if mdw__PERL_VERSION(["$p/perl"], $1); then
1143     mdw_cv_prog_perl="$p/perl"
1144     break
1145   fi
1146   if mdw__PERL_VERSION(["$p/perl5"], $1); then
1147     mdw_cv_prog_perl="$p/perl5"
1148     break
1149   fi
1150 done])
1151 PERL="$mdw_cv_prog_perl"])
1152 fi
1153
1154 AC_SUBST(PERL)dnl
1155 if test "$PERL" = "none"; then :
1156   $3
1157 else :
1158   $2
1159 fi])
1160
1161 dnl --- *@-mdw_CHECK_PERL-@* ---
1162 dnl
1163 dnl Author:     Mark Wooding
1164 dnl
1165 dnl Synopsis:   mdw_CHECK_PERL(VERSION)
1166 dnl
1167 dnl Arguments:  VERSION = version number of Perl required
1168 dnl
1169 dnl Use:        Verifies that the Perl interpreter in the `PERL' shell
1170 dnl             variable actually works and is of the right version.  If it's
1171 dnl             not, an error is raised and configuration is aborted.
1172
1173 AC_DEFUN(mdw_CHECK_PERL,
1174 [mdw_REQUIRE([mdw_PROG_PERL], [$1])
1175 AC_MSG_CHECKING([whether Perl ($PERL) works])
1176 if test "$PERL" != "none" && mdw__PERL_VERSION("$PERL", $1); then
1177   AC_MSG_RESULT([yes])
1178 else
1179   AC_MSG_RESULT([no])
1180   AC_MSG_ERROR([Perl version $1 or newer not found.
1181 If you have a recent enough Perl, and I just failed to find it, try using
1182 the --with-perl=PERL option to give me an explicit pathname.])
1183 fi])
1184
1185 dnl --- *@-mdw_PERLLIB_CHECK-@* ---
1186 dnl
1187 dnl Author:     Mark Wooding
1188 dnl
1189 dnl Synopsis:   mdw_PERLLIB_CHECK(LIBRARY)
1190 dnl
1191 dnl Arguments:  LIBRARY = name of a Perl library to check for
1192 dnl
1193 dnl Use:        Ensures that a Perl script can `use LIBRARY;'.  If it can,
1194 dnl             all's well and good; if it can't, `LIBRARY.pm' is added to
1195 dnl             the variable `NEEDED_PERLLIBS' and a line which adds
1196 dnl             `pkgdatadir' to Perl's `@INC' array is placed in the
1197 dnl             variable `INC_PERLLIBS'; `AC_SUBST' is called for both of
1198 dnl             these variables.  It's expected that `NEEDED_PERLLIBS' will
1199 dnl             be used in the `Makefile.in' to decide which versions from
1200 dnl             the distribution need installing.
1201 dnl
1202 dnl             This macro isn't terribly useful in the general case.  It
1203 dnl             Also implicitly assumes that `$PERL' is Perl 5 or later.
1204
1205 AC_DEFUN(mdw__PERLLIB_INIT,
1206 [AC_SUBST(INC_PERLLIBS)dnl
1207 AC_SUBST(NEEDED_PERLLIBS)dnl
1208 ])
1209
1210 AC_DEFUN(mdw_PERLLIB_CHECK,
1211 [AC_REQUIRE([mdw__PERLLIB_INIT])
1212 mdw_REQUIRE([mdw_CHECK_PERL], 5)
1213 AC_CACHE_CHECK([for Perl library $1], mdw_cv_perllib_$1,
1214 [if $PERL -e 'use $1;' >&5 2>&5; then
1215   mdw_cv_perllib_$1="yes"
1216 else
1217   mdw_cv_perllib_$1="no"
1218 fi])
1219
1220 if test "$mdw_cv_perllib_$1" = "no"; then
1221   NEEDED_PERLLIBS="$NEEDED_PERLLIBS $1.pm"
1222
1223   # --- Deal with autoconf lossage ---
1224   #
1225   # It doesn't want to define `prefix' until rather later on, so I have
1226   # to bodge it here.
1227
1228   if test -z "$INC_PERLLIBS"; then
1229     mdw_old_prefix="$prefix"
1230     test "$prefix" = "NONE" && prefix="$ac_default_prefix";
1231     INC_PERLLIBS="BEGIN { push @INC, \"`eval echo $datadir/$PACKAGE`\"; }"
1232     prefix="$mdw_old_prefix";
1233   fi
1234 fi])
1235
1236 dnl --- *@-mdw_GCC_FLAGS-@* ---
1237 dnl
1238 dnl Author:     Mark Wooding
1239 dnl
1240 dnl Synopsis:   mdw_GCC_FLAGS([FLAGS], [CFLAGS], [C++FLAGS])
1241 dnl
1242 dnl Arguments:  FLAGS = GCC compiler flags to add (default is
1243 dnl                     `-pedantic -Wall')
1244 dnl             CFLAGS = GCC C compiler flags to add (default is empty)
1245 dnl             C++FLAGS = GCC C++ compiler flags to add (default is
1246 dnl                     `-fhandle-exceptions').
1247 dnl
1248 dnl Use:        If the C compiler is GCC, add the compiler flags.
1249
1250 AC_DEFUN(mdw_GCC_FLAGS,
1251 [if test "$GCC" = "yes"; then
1252   CFLAGS="$CFLAGS ifelse([$1], [], [-pedantic -Wall], [$1])"
1253   CFLAGS="$CFLAGS ifelse([$2], [], [], [$2])"
1254 fi
1255 if test "$GXX" = "yes"; then
1256   CXXFLAGS="$CXXFLAGS ifelse([$1], [], [-pedantic -Wall], [$1])"
1257   CXXFLAGS="$CXXFLAGS ifelse([$3], [], [-fhandle-exceptions], [$3])"
1258 fi])
1259
1260 dnl --- *@-mdw_OPT_NDEBUG-@* ---
1261 dnl
1262 dnl Author:     Mark Wooding
1263 dnl
1264 dnl Synopsis:   mdw_OPT_NDEBUG
1265 dnl
1266 dnl Arguments:  ---
1267 dnl
1268 dnl Use:        Turns off the `NDEBUG' flag if the user wants to do
1269 dnl             debugging.
1270
1271 AC_DEFUN(mdw_OPT_NDEBUG,
1272 [AC_ARG_ENABLE(debugging,
1273 [  --enable-debugging      spews vast swathes of useless information],
1274 [if test "$enableval" = "no"; then
1275   AC_DEFINE(NDEBUG, 1)
1276 fi],
1277 [AC_DEFINE(NDEBUG, 1)])])
1278
1279 dnl --- *@-mdw_OPT_EFENCE-@* ---
1280 dnl
1281 dnl Author:     Mark Wooding
1282 dnl
1283 dnl Synopsis:   mdw_OPT_EFENCE
1284 dnl
1285 dnl Arguments:  ---
1286 dnl
1287 dnl Use:        Links with the Electric Fence library.
1288
1289 AC_DEFUN(mdw_OPT_EFENCE,
1290 [AC_ARG_WITH(electric-fence,
1291 [  --with-electric-fence   link programs with Electric Fence],
1292 [if test "$withval" = "yes"; then
1293   AC_CHECK_LIB(efence, malloc)
1294 fi])])
1295
1296 dnl --- *@-mdw_OPT_mLib_DEBUG-@* ---
1297 dnl
1298 dnl Author:     Mark Wooding
1299 dnl
1300 dnl Synopsis:   mdw_OPT_mLib_DEBUG(PROGRAM)
1301 dnl
1302 dnl Arguments:  ---
1303 dnl
1304 dnl Use:        Provides options for mLib debugging.  In particular, the
1305 dnl             following are defined:
1306 dnl
1307 dnl               --enable-tracing        turns off the NTRACE variable
1308 dnl               --enable-track          turns on malloc tracking
1309 dnl               --enable-blame-PROGRAM  tracks malloc contexts in PROGRAM
1310 dnl
1311 dnl             There must be  a separate `blame' option, so that the various
1312 dnl             blame options work properly.
1313
1314 AC_DEFUN(mdw_OPT_mLib_DEBUG,
1315 [mdw_OPT_NDEBUG
1316 mdw_OPT_EFENCE
1317
1318 AC_ARG_ENABLE(tracing,
1319 [  --enable-tracing        enable output of tracing information],
1320 [if test "$enableval" = "no"; then
1321   AC_DEFINE(NTRACE, 1)
1322 fi],
1323 [AC_DEFINE(NTRACE, 1)])
1324
1325 AC_ARG_ENABLE(track,
1326 [  --enable-track          enable tracking of malloc and free],
1327 [AC_DEFINE(TRACK_ENABLE, 1)])
1328
1329 AC_ARG_ENABLE(blame-$1,
1330 [  --enable-blame-$1
1331                           track malloc contexts while in $1],
1332 [AC_DEFINE(TRACK_BLAME, 1)])])
1333
1334 dnl----- That's all, folks --------------------------------- *@--GLOB-END--@*