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

   1 dnl -*-fundamental-*-                                     *@--GLOB-HEADER--@*
   2 dnl
   3 dnl $Id: aclocal.glob,v 1.13 2001/02/23 09:07:24 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 1.13  2001/02/23 09:07:24  mdw
  32 dnl Restore temporary variable on exit.
  33 dnl
  34 dnl Revision 1.12  2001/02/04 01:18:52  mdw
  35 dnl Overhaul the mLib debugging options.
  36 dnl
  37 dnl Revision 1.11  2001/01/20 12:03:08  mdw
  38 dnl Remove redundant stuff.
  39 dnl
  40 dnl Revision 1.10  2000/10/14 16:32:15  mdw
  41 dnl Fixes from upstream.
  42 dnl
  43 dnl Revision 1.9  2000/08/15 21:37:49  mdw
  44 dnl New initialization macro for libraries, and a new base client macro for
  45 dnl finding libraries with an appropriate version.
  46 dnl
  47 dnl Revision 1.8  1999/11/26 01:23:17  mdw
  48 dnl And support for MXD (not yet released).
  49 dnl
  50 dnl Revision 1.7  1999/11/11 20:03:58  mdw
  51 dnl Add support for mgLib too.
  52 dnl
  53 dnl Revision 1.6  1999/11/11 17:49:33  mdw
  54 dnl New macros for configuring clients of mLib and Catacomb.
  55 dnl
  56 dnl Revision 1.5  1999/07/27 18:27:37  mdw
  57 dnl Fix typo in header line for mdw_DECL_ENVIRON.
  58 dnl
  59 dnl Revision 1.4  1999/07/26 23:44:32  mdw
  60 dnl Reorder and tidy documentation.
  61 dnl
  62 dnl Revision 1.3  1999/07/17 10:27:44  mdw
  63 dnl More useful macros added.
  64 dnl
  65 dnl Revision 1.2  1999/05/13 22:57:23  mdw
  66 dnl Change `-ise' to `-ize' throughout.
  67 dnl
  68 dnl Revision 1.1.1.1  1999/05/05 19:23:47  mdw
  69 dnl New import.  The old CVS repository was lost in a disk disaster.
  70 dnl
  71
  72 dnl----- Common files distribution --------------------------- *@--NOTICE--@*
  73 dnl
  74 dnl $Id: aclocal.glob,v 1.13 2001/02/23 09:07:24 mdw Exp $
  75
  76 dnl --- *@-AM_PROG_CC_STDC-@* ---
  77 dnl
  78 dnl Author:     Franc,ois Pinard
  79 dnl
  80 dnl Synopsis:   AM_PROG_CC_STDC
  81 dnl
  82 dnl Arguments:  ---
  83 dnl
  84 dnl Use:        If the C compiler in not in ANSI C mode by default, try to
  85 dnl             add an option to output variable `CC' to make it so.  This
  86 dnl             macro tries various options that select ANSI C on some system
  87 dnl             or another.  It considers the compiler to be in ANSI C mode
  88 dnl             if it defines `__STDC__' to 1 and handles function prototypes
  89 dnl             correctly.
  90 dnl
  91 dnl             If you use this macro, you should check after calling it
  92 dnl             whether the C compiler has been set to accept ANSI C; if not,
  93 dnl             the shell variable `ac_cv_prog_cc_stdc' is set to `no'.  If
  94 dnl             you wrote your source code in ANSI C, you can make an
  95 dnl             un-ANSIfied copy of it by using the program `ansi2knr', which
  96 dnl             comes with Ghostscript.
  97 dnl
  98 dnl                                     (documentation by Franc,ois Pinard)
  99
 100 AC_DEFUN(AM_PROG_CC_STDC,
 101 [AC_REQUIRE([AC_PROG_CC])
 102 AC_BEFORE([$0], [AC_C_INLINE])
 103 AC_BEFORE([$0], [AC_C_CONST])
 104 AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C)
 105 AC_CACHE_VAL(am_cv_prog_cc_stdc,
 106 [am_cv_prog_cc_stdc=no
 107 ac_save_CC="$CC"
 108 # Don't try gcc -ansi; that turns off useful extensions and
 109 # breaks some systems' header files.
 110 # AIX                   -qlanglvl=ansi
 111 # Ultrix and OSF/1      -std1
 112 # HP-UX                 -Aa -D_HPUX_SOURCE
 113 # SVR4                  -Xc -D__EXTENSIONS__
 114 for ac_arg in "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 115 do
 116   CC="$ac_save_CC $ac_arg"
 117   AC_TRY_COMPILE(
 118 [#if !defined(__STDC__) || __STDC__ != 1
 119 choke me
 120 #endif
 121 /* DYNIX/ptx V4.1.3 can't compile sys/stat.h with -Xc -D__EXTENSIONS__. */
 122 #ifdef _SEQUENT_
 123 # include <sys/types.h>
 124 # include <sys/stat.h>
 125 #endif
 126 ], [
 127 int test (int i, double x);
 128 struct s1 {int (*f) (int a);};
 129 struct s2 {int (*f) (double a);};],
 130 [am_cv_prog_cc_stdc="$ac_arg"; break])
 131 done
 132 CC="$ac_save_CC"
 133 ])
 134 if test -z "$am_cv_prog_cc_stdc"; then
 135   AC_MSG_RESULT([none needed])
 136 else
 137   AC_MSG_RESULT($am_cv_prog_cc_stdc)
 138 fi
 139 case "x$am_cv_prog_cc_stdc" in
 140   x|xno) ;;
 141   *) CC="$CC $am_cv_prog_cc_stdc" ;;
 142 esac
 143 ])
 144
 145 dnl----- AutoMake macros ------------------------------------- *@--IGNORE--@*
 146
 147 dnl --- *@-AM_CONDITIONAL-@* ---
 148 dnl
 149 dnl Author:     Unknown
 150 dnl
 151 dnl Synopsis:   AM_CONDITIONAL(NAME, TEST)
 152 dnl
 153 dnl Arguments:  NAME = name of the conditional
 154 dnl             TEST = a shell list to execute
 155 dnl
 156 dnl Use:        Allows conditional sections in Makefiles.
 157
 158 AC_DEFUN(AM_CONDITIONAL,
 159 [AC_SUBST($1_TRUE)
 160 AC_SUBST($1_FALSE)
 161 if $2; then
 162   $1_TRUE=
 163   $1_FALSE='#'
 164 else
 165   $1_TRUE='#'
 166   $1_FALSE=
 167 fi])
 168
 169 dnl --- *@-AM_CYGWIN32-@* ---
 170 dnl
 171 dnl Author:     Cygnus (I guess)
 172 dnl
 173 dnl Synopsis:   AM_CYGWIN32
 174 dnl
 175 dnl Arguments:  ---
 176 dnl
 177 dnl Use:        Check to see if we're running under Cygwin32, without using
 178 dnl             AC_CANONICAL_*.  If so, set output variable EXEEXT to
 179 dnl             ".exe".  Otherwise set it to "".
 180
 181 dnl AM_CYGWIN32()
 182 dnl You might think we can do this by checking for a cygwin32-specific
 183 dnl cpp define.  We can't, because cross-compilers that target
 184 dnl cygwin32 don't use the .exe suffix.  I don't know why.
 185 AC_DEFUN(AM_CYGWIN32,
 186 [AC_CACHE_CHECK(for Cygwin32 environment, am_cv_cygwin32,
 187 [cat > conftest.$ac_ext << 'EOF'
 188 int main () {
 189 /* Nothing.  */
 190 return 0; }
 191 EOF
 192 if AC_TRY_EVAL(ac_link) && test -s conftest.exe; then
 193    am_cv_cygwin32=yes
 194 else
 195    am_cv_cygwin32=no
 196 fi
 197 rm -f conftest*])
 198 EXEEXT=
 199 test "$am_cv_cygwin32" = yes && EXEEXT=.exe
 200 AC_SUBST(EXEEXT)])
 201
 202 dnl --- *@-AM_WITH_DMALLOC-@* ---
 203 dnl
 204 dnl Author:     Franc,ois Pinard
 205 dnl
 206 dnl Synopsis:   AM_WITH_DMALLOC
 207 dnl
 208 dnl Arguments:  ---
 209 dnl
 210 dnl Use:        Links with `-dmalloc' if told to by the user.
 211
 212 ## ----------------------------------- ##
 213 ## Check if --with-dmalloc was given.  ##
 214 ## From Franc,ois Pinard               ##
 215 ## ----------------------------------- ##
 216
 217 # serial 1
 218
 219 AC_DEFUN(AM_WITH_DMALLOC,
 220 [AC_MSG_CHECKING(if malloc debugging is wanted)
 221 AC_ARG_WITH(dmalloc,
 222 [  --with-dmalloc          use dmalloc, as in
 223                           ftp://ftp.letters.com/src/dmalloc/dmalloc.tar.gz],
 224 [if test "$withval" = yes; then
 225   AC_MSG_RESULT(yes)
 226   AC_DEFINE(WITH_DMALLOC)
 227   LIBS="$LIBS -ldmalloc"
 228   LDFLAGS="$LDFLAGS -g"
 229 else
 230   AC_MSG_RESULT(no)
 231 fi], [AC_MSG_RESULT(no)])
 232 ])
 233
 234 dnl --- *@-AM_FUNC_ERROR_AT_LINE-@* ---
 235 dnl
 236 dnl Author:     Jim Meyering
 237 dnl
 238 dnl Synopsis:   AM_FUNC_ERROR_AT_LINE
 239 dnl
 240 dnl Arguments:  ---
 241 dnl
 242 dnl Use:        Use this if you use the GNU error.[ch].
 243
 244 dnl FIXME: Migrate into libit
 245
 246 AC_DEFUN(AM_FUNC_ERROR_AT_LINE,
 247 [AC_CACHE_CHECK([for error_at_line], am_cv_lib_error_at_line,
 248  [AC_TRY_LINK([],[error_at_line(0, 0, "", 0, "");],
 249               am_cv_lib_error_at_line=yes,
 250               am_cv_lib_error_at_line=no)])
 251  if test $am_cv_lib_error_at_line = no; then
 252    LIBOBJS="$LIBOBJS error.o"
 253  fi
 254  AC_SUBST(LIBOBJS)dnl
 255 ])
 256
 257 dnl --- *@-AM_INIT_GUILE_MODULE-@* ---
 258 dnl
 259 dnl Author:     Unknown
 260 dnl
 261 dnl Synopsis:   AM_INIT_GUILE_MODULE(MODNAME)
 262 dnl
 263 dnl Arguments:  MODNAME = value to initialize `module' variable with
 264 dnl
 265 dnl Use:        This macro will automatically get the guile version from the
 266 dnl             top-level srcdir, and will initialize automake.  It also
 267 dnl             defines the `module' variable.
 268
 269 AC_DEFUN([AM_INIT_GUILE_MODULE],[
 270 . $srcdir/../GUILE-VERSION
 271 AM_INIT_AUTOMAKE($PACKAGE, $VERSION)
 272 AC_CONFIG_AUX_DIR(..)
 273 module=[$1]
 274 AC_SUBST(module)])
 275
 276 dnl --- *@-AM_CONFIG_HEADER-@* ---
 277 dnl
 278 dnl Author:     Unknown
 279 dnl
 280 dnl Synopsis:   AM_CONFIG_HEADER(HEADER ...)
 281 dnl
 282 dnl Arguments:  HEADER = a header spec, as for AC_CONFIG_HEADER
 283 dnl
 284 dnl Use:        Like AC_CONFIG_HEADER, but automatically create stamp file.
 285
 286 AC_DEFUN(AM_CONFIG_HEADER,
 287 [AC_PREREQ([2.12])
 288 AC_CONFIG_HEADER([$1])
 289 dnl When config.status generates a header, we must update the stamp-h file.
 290 dnl This file resides in the same directory as the config header
 291 dnl that is generated.  We must strip everything past the first ":",
 292 dnl and everything past the last "/".
 293 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
 294 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
 295 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/
 296 \)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
 297 <<am_indx=1
 298 for am_file in <<$1>>; do
 299   case " <<$>>CONFIG_HEADERS " in
 300   *" <<$>>am_file "*<<)>>
 301     echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
 302     ;;
 303   esac
 304   am_indx=`expr "<<$>>am_indx" + 1`
 305 done<<>>dnl>>)
 306 changequote([,]))])
 307
 308 dnl --- *@-AM_INIT_AUTOMAKE-@*
 309 dnl
 310 dnl Author:     Unknown
 311 dnl
 312 dnl Synopsis:   AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 313 dnl
 314 dnl Arguments:  PACKAGE = package name
 315 dnl             VERSION = version number
 316 dnl             NO-DEFINE = if set, don't define package and version number
 317 dnl
 318 dnl Use:        Do all the work for Automake.  This macro actually does too
 319 dnl             much -- some checks are only needed if your package does
 320 dnl             certain things.  But this isn't really a big deal.
 321
 322 # serial 1
 323
 324 AC_DEFUN(AM_INIT_AUTOMAKE,
 325 [AC_REQUIRE([AC_PROG_INSTALL])
 326 PACKAGE=[$1]
 327 AC_SUBST(PACKAGE)
 328 VERSION=[$2]
 329 AC_SUBST(VERSION)
 330 dnl test to see if srcdir already configured
 331 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
 332   AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 333 fi
 334 ifelse([$3],,
 335 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
 336 AC_DEFINE_UNQUOTED(VERSION, "$VERSION"))
 337 AC_REQUIRE([AM_SANITY_CHECK])
 338 AC_REQUIRE([AC_ARG_PROGRAM])
 339 dnl FIXME This is truly gross.
 340 missing_dir=`cd $ac_aux_dir && pwd`
 341 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
 342 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
 343 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
 344 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
 345 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
 346 AC_REQUIRE([AC_PROG_MAKE_SET])])
 347
 348 dnl --- *@-AM_PROG_LEX-@* ---
 349 dnl
 350 dnl Author:     Alexandre Oliva
 351 dnl
 352 dnl Synopsis:   AM_PROG_LEX
 353 dnl
 354 dnl Arguments:  ---
 355 dnl
 356 dnl Use:        Replacement for AC_PROG_LEX and AC_DECL_YYTEXT
 357
 358 dnl AM_PROG_LEX
 359 dnl Look for flex, lex or missing, then run AC_PROG_LEX and AC_DECL_YYTEXT
 360 AC_DEFUN(AM_PROG_LEX,
 361 [missing_dir=ifelse([$1],,`cd $ac_aux_dir && pwd`,$1)
 362 AC_CHECK_PROGS(LEX, flex lex, "$missing_dir/missing flex")
 363 AC_PROG_LEX
 364 AC_DECL_YYTEXT])
 365
 366 dnl --- *@-AM_PROG_LIBTOOL-@* ---
 367 dnl
 368 dnl Author:     Unknown
 369 dnl
 370 dnl Synopsis:   AM_PROG_LIBTOOL
 371 dnl
 372 dnl Arguments:  ---
 373 dnl
 374 dnl Use:        Configures `libtool' for the target architecture.
 375
 376 ##
 377 ## Configure libtool for the target system.
 378 ##
 379 # serial 1 AM_PROG_LIBTOOL
 380 AC_DEFUN(AM_PROG_LIBTOOL,
 381 [AC_REQUIRE([AC_CANONICAL_HOST])
 382 AC_REQUIRE([AC_PROG_CC])
 383 AC_REQUIRE([AC_PROG_RANLIB])
 384
 385 # Always use our own libtool.
 386 LIBTOOL='$(top_builddir)/libtool'
 387 AC_SUBST(LIBTOOL)
 388
 389 dnl Allow the --disable-shared flag to stop us from building shared libs.
 390 AC_ARG_ENABLE(shared,
 391 [  --enable-shared         build shared libraries [default=yes]],
 392 test "$enableval" = no && libtool_shared=" --disable-shared",
 393 libtool_shared=)
 394
 395 libtool_flags="$libtool_shared"
 396 test "$silent" = yes && libtool_flags="$libtool_flags --silent"
 397 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
 398
 399 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
 400 CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" LD="$LD" RANLIB="$RANLIB" \
 401 $ac_aux_dir/ltconfig $libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
 402 || AC_MSG_ERROR([libtool configure failed])
 403 ])
 404
 405 dnl --- *@-AM_PATH_LISPDIR-@* ---
 406 dnl
 407 dnl Author:     Ulrich Drepper
 408 dnl
 409 dnl Synopsis:   AM_PATH_LISPDIR
 410 dnl
 411 dnl Arguments:  ---
 412 dnl
 413 dnl Use:        Sets the variable `lispdir' to point to a place to install
 414 dnl             Emacs lisp files.
 415
 416 ## ------------------------
 417 ## Emacs LISP file handling
 418 ## From Ulrich Drepper
 419 ## ------------------------
 420
 421 # serial 1
 422
 423 AC_DEFUN(AM_PATH_LISPDIR,
 424  [# If set to t, that means we are running in a shell under Emacs.
 425   # If you have an Emacs named "t", then use the full path.
 426   test "$EMACS" = t && EMACS=
 427   AC_PATH_PROG(EMACS, emacs xemacs, no)
 428   if test $EMACS != "no"; then
 429     AC_MSG_CHECKING([where .elc files should go])
 430     dnl Set default value
 431     lispdir="\$(datadir)/emacs/site-lisp"
 432     if test "x$prefix" = "xNONE"; then
 433       if test -d $ac_default_prefix/share/emacs/site-lisp; then
 434         lispdir="\$(prefix)/share/emacs/site-lisp"
 435       else
 436         if test -d $ac_default_prefix/lib/emacs/site-lisp; then
 437           lispdir="\$(prefix)/lib/emacs/site-lisp"
 438         fi
 439       fi
 440     else
 441       if test -d $prefix/share/emacs/site-lisp; then
 442         lispdir="\$(prefix)/share/emacs/site-lisp"
 443       else
 444         if test -d $prefix/lib/emacs/site-lisp; then
 445           lispdir="\$(prefix)/lib/emacs/site-lisp"
 446         fi
 447       fi
 448     fi
 449     AC_MSG_RESULT($lispdir)
 450   fi
 451   AC_SUBST(lispdir)])
 452
 453 dnl --- *@-AM_MAINTAINTER_MODE-@* ---
 454 dnl
 455 dnl Author:     Jim Meyering
 456 dnl
 457 dnl Synopsis:   jm_MAINTAINER_MODE
 458 dnl
 459 dnl Arguments:  ---
 460 dnl
 461 dnl Use:        Provides an option `--enable-maintainer-mode' which turns
 462 dnl             on rules which might normally be commented out.  The
 463 dnl             substitution variable `MAINT' is set to be a comment when
 464 dnl             this option is disabled, which it is by default.
 465
 466 # serial 1
 467
 468 AC_DEFUN(AM_MAINTAINER_MODE,
 469 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 470   dnl maintainer-mode is disabled by default
 471   AC_ARG_ENABLE(maintainer-mode,
 472 [  --enable-maintainer-mode enable make rules and dependencies not useful
 473                           (and sometimes confusing) to the casual installer],
 474       USE_MAINTAINER_MODE=$enableval,
 475       USE_MAINTAINER_MODE=no)
 476   AC_MSG_RESULT($USE_MAINTAINER_MODE)
 477   if test $USE_MAINTAINER_MODE = yes; then
 478     MAINT=
 479   else
 480     MAINT='#M#'
 481   fi
 482   AC_SUBST(MAINT)dnl
 483 ]
 484 )
 485
 486 dnl --- *@-AM_MISSING_PROG-@* ---
 487 dnl
 488 dnl Author:     Unknown
 489 dnl
 490 dnl Synopsis:   AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
 491 dnl
 492 dnl Arguments:  NAME = variable to set to the file's location
 493 dnl             PROGRAM = name of program to find
 494 dnl             DIRECTORY = directory to look in
 495 dnl
 496 dnl Use:        Fakes existence of a useful GNU maintainer tool.
 497
 498 AC_DEFUN(AM_MISSING_PROG,
 499 [AC_MSG_CHECKING(for working $2)
 500 # Run test in a subshell; some versions of sh will print an error if
 501 # an executable is not found, even if stderr is redirected.
 502 # Redirect stdin to placate older versions of autoconf.  Sigh.
 503 if ($2 --version) < /dev/null > /dev/null 2>&1; then
 504    $1=$2
 505    AC_MSG_RESULT(found)
 506 else
 507    $1="$3/missing $2"
 508    AC_MSG_RESULT(missing)
 509 fi
 510 AC_SUBST($1)])
 511
 512 dnl --- *@-AM_FUNC_MKTIME-@* ---
 513 dnl
 514 dnl Author:     Jim Meyering
 515 dnl
 516 dnl Synopsis:   AM_FUNC_MKTIME
 517 dnl
 518 dnl Arguments:  ---
 519 dnl
 520 dnl Use:        Checks for a working mktime function.
 521
 522 AC_DEFUN(AM_FUNC_MKTIME,
 523 [AC_REQUIRE([AC_HEADER_TIME])dnl
 524  AC_CHECK_HEADERS(sys/time.h)
 525  AC_CACHE_CHECK([for working mktime], am_cv_func_working_mktime,
 526   [AC_TRY_RUN(
 527 changequote(<<, >>)dnl
 528 <</* Test program from Paul Eggert (eggert@twinsun.com)
 529    and Tony Leneis (tony@plaza.ds.adp.com).  */
 530 #if TIME_WITH_SYS_TIME
 531 # include <sys/time.h>
 532 # include <time.h>
 533 #else
 534 # if HAVE_SYS_TIME_H
 535 #  include <sys/time.h>
 536 # else
 537 #  include <time.h>
 538 # endif
 539 #endif
 540
 541 static time_t time_t_max;
 542
 543 /* Values we'll use to set the TZ environment variable.  */
 544 static const char *const tz_strings[] = {
 545   NULL, "GMT0", "JST-9", "EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00"
 546 };
 547 #define N_STRINGS (sizeof (tz_strings) / sizeof (tz_strings[0]))
 548
 549 static void
 550 mktime_test (now)
 551      time_t now;
 552 {
 553   if (mktime (localtime (&now)) != now)
 554     exit (1);
 555   now = time_t_max - now;
 556   if (mktime (localtime (&now)) != now)
 557     exit (1);
 558 }
 559
 560 int
 561 main ()
 562 {
 563   time_t t, delta;
 564   int i;
 565
 566   for (time_t_max = 1; 0 < time_t_max; time_t_max *= 2)
 567     continue;
 568   time_t_max--;
 569   delta = time_t_max / 997; /* a suitable prime number */
 570   for (i = 0; i < N_STRINGS; i++)
 571     {
 572       if (tz_strings[i])
 573         putenv (tz_strings[i]);
 574
 575       for (t = 0; t <= time_t_max - delta; t += delta)
 576         mktime_test (t);
 577       mktime_test ((time_t) 60 * 60);
 578       mktime_test ((time_t) 60 * 60 * 24);
 579     }
 580   exit (0);
 581 }
 582               >>,
 583 changequote([, ])dnl
 584              am_cv_func_working_mktime=yes, am_cv_func_working_mktime=no,
 585              dnl When crosscompiling, assume mktime is missing or broken.
 586              am_cv_func_working_mktime=no)
 587   ])
 588   if test $am_cv_func_working_mktime = no; then
 589     LIBOBJS="$LIBOBJS mktime.o"
 590   fi
 591 ])
 592
 593 dnl --- *@-AM_FUNC_OBSTACK-@* ---
 594 dnl
 595 dnl Author:     Jim Meyering
 596 dnl
 597 dnl Synopsis:   AM_FUNC_OBSTACK
 598 dnl
 599 dnl Arguments:  ---
 600 dnl
 601 dnl Use:        Checks for GNU obstacks.
 602
 603 AC_DEFUN(AM_FUNC_OBSTACK,
 604 [AC_CACHE_CHECK([for obstacks], am_cv_func_obstack,
 605  [AC_TRY_LINK([#include "obstack.h"],
 606               [struct obstack *mem;obstack_free(mem,(char *) 0)],
 607               am_cv_func_obstack=yes,
 608               am_cv_func_obstack=no)])
 609  if test $am_cv_func_obstack = yes; then
 610    AC_DEFINE(HAVE_OBSTACK)
 611  else
 612    LIBOBJS="$LIBOBJS obstack.o"
 613  fi
 614 ])
 615
 616 dnl --- *@-AC_C_PROTOTYPES-@* ---
 617 dnl
 618 dnl Author:     Franc,ois Pinard
 619 dnl
 620 dnl Synopsis:   AC_C_PROTOTYPES
 621 dnl
 622 dnl Arguments:  ---
 623 dnl
 624 dnl Use:        If the C compiler understands ANSI C, define `PROTOTYPES',
 625 dnl             and clear the `U' and `ANSI2KNR' variables.  Otherwise,
 626 dnl             set `U' to be `_' and `ANSI2KNR' to be `./ansi2knr'.
 627
 628 # serial 1
 629
 630 AC_DEFUN(fp_C_PROTOTYPES,
 631 [AC_REQUIRE([AM_PROG_CC_STDC])
 632 AC_MSG_CHECKING([for function prototypes])
 633 if test "$ac_cv_prog_cc_stdc" != no; then
 634   AC_MSG_RESULT(yes)
 635   AC_DEFINE(PROTOTYPES)
 636   U= ANSI2KNR=
 637 else
 638   AC_MSG_RESULT(no)
 639   U=_ ANSI2KNR=./ansi2knr
 640 fi
 641 AC_SUBST(U)dnl
 642 AC_SUBST(ANSI2KNR)dnl
 643 ])
 644
 645 dnl --- *@-AM_PATH_GTK-@* ---
 646 dnl
 647 dnl Author:     Owen Taylor
 648 dnl
 649 dnl Synopsis:   AM_PATH_GTK(MIN-VERSION, [ACTION-IF-FOUND], [ACTION-IF-NOT])
 650 dnl
 651 dnl Arguments:  MIN-VERSION = minimum version of GTK required
 652 dnl             ACTION-IF-FOUND = executed if GTK found OK
 653 dnl             ACTION-IF-NOT-FOUND = what to do if GTK not available
 654 dnl
 655 dnl Use:        Sets up compilation environment suitably for GTK programming.
 656
 657 # Configure paths for GTK+
 658 # Owen Taylor     97-11-3
 659
 660 dnl AM_PATH_GTK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 661 dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS
 662 dnl
 663 AC_DEFUN(AM_PATH_GTK,
 664 [dnl
 665 dnl Get the cflags and libraries from the gtk-config script
 666 dnl
 667 AC_ARG_WITH(gtk-prefix,[  --with-gtk-prefix=PFX   Prefix where GTK is installed (optional)],
 668             gtk_config_prefix="$withval", gtk_config_prefix="")
 669 AC_ARG_WITH(gtk-exec-prefix,[  --with-gtk-exec-prefix=PFX Exec prefix where GTK is installed (optional)],
 670             gtk_config_exec_prefix="$withval", gtk_config_exec_prefix="")
 671 AC_ARG_ENABLE(gtktest, [  --disable-gtktest       Do not try to compile and run a test GTK program],
 672                     , enable_gtktest=yes)
 673
 674   if test x$gtk_config_exec_prefix != x ; then
 675      gtk_config_args="$gtk_config_args --exec-prefix=$gtk_config_exec_prefix"
 676      if test x${GTK_CONFIG+set} != xset ; then
 677         GTK_CONFIG=$gtk_config_exec_prefix/bin/gtk-config
 678      fi
 679   fi
 680   if test x$gtk_config_prefix != x ; then
 681      gtk_config_args="$gtk_config_args --prefix=$gtk_config_prefix"
 682      if test x${GTK_CONFIG+set} != xset ; then
 683         GTK_CONFIG=$gtk_config_prefix/bin/gtk-config
 684      fi
 685   fi
 686
 687   AC_PATH_PROG(GTK_CONFIG, gtk-config, no)
 688   min_gtk_version=ifelse([$1], ,0.99.7,$1)
 689   AC_MSG_CHECKING(for GTK - version >= $min_gtk_version)
 690   no_gtk=""
 691   if test "$GTK_CONFIG" = "no" ; then
 692     no_gtk=yes
 693   else
 694     GTK_CFLAGS=`$GTK_CONFIG $gtk_config_args --cflags`
 695     GTK_LIBS=`$GTK_CONFIG $gtk_config_args --libs`
 696     gtk_config_major_version=`$GTK_CONFIG $gtk_config_args --version | \
 697            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
 698     gtk_config_minor_version=`$GTK_CONFIG $gtk_config_args --version | \
 699            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
 700     gtk_config_micro_version=`$GTK_CONFIG $gtk_config_args --version | \
 701            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
 702     if test "x$enable_gtktest" = "xyes" ; then
 703       ac_save_CFLAGS="$CFLAGS"
 704       ac_save_LIBS="$LIBS"
 705       CFLAGS="$CFLAGS $GTK_CFLAGS"
 706       LIBS="$LIBS $GTK_LIBS"
 707 dnl
 708 dnl Now check if the installed GTK is sufficiently new. (Also sanity
 709 dnl checks the results of gtk-config to some extent
 710 dnl
 711       rm -f conf.gtktest
 712       AC_TRY_RUN([
 713 #include <gtk/gtk.h>
 714 #include <stdio.h>
 715
 716 int
 717 main ()
 718 {
 719   int major, minor, micro;
 720   char *tmp_version;
 721
 722   system ("touch conf.gtktest");
 723
 724   /* HP/UX 9 (%@#!) writes to sscanf strings */
 725   tmp_version = g_strdup("$min_gtk_version");
 726   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
 727      printf("%s, bad version string\n", "$min_gtk_version");
 728      exit(1);
 729    }
 730
 731   if ((gtk_major_version != $gtk_config_major_version) ||
 732       (gtk_minor_version != $gtk_config_minor_version) ||
 733       (gtk_micro_version != $gtk_config_micro_version))
 734     {
 735       printf("\n*** 'gtk-config --version' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n",
 736              $gtk_config_major_version, $gtk_config_minor_version, $gtk_config_micro_version,
 737              gtk_major_version, gtk_minor_version, gtk_micro_version);
 738       printf ("*** was found! If gtk-config was correct, then it is best\n");
 739       printf ("*** to remove the old version of GTK+. You may also be able to fix the error\n");
 740       printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
 741       printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
 742       printf("*** required on your system.\n");
 743       printf("*** If gtk-config was wrong, set the environment variable GTK_CONFIG\n");
 744       printf("*** to point to the correct copy of gtk-config, and remove the file config.cache\n");
 745       printf("*** before re-running configure\n");
 746     }
 747   else
 748     {
 749       if ((gtk_major_version > major) ||
 750         ((gtk_major_version == major) && (gtk_minor_version > minor)) ||
 751         ((gtk_major_version == major) && (gtk_minor_version == minor) && (gtk_micro_version >= micro)))
 752       {
 753         return 0;
 754        }
 755      else
 756       {
 757         printf("\n*** An old version of GTK+ (%d.%d.%d) was found.\n",
 758                gtk_major_version, gtk_minor_version, gtk_micro_version);
 759         printf("*** You need a version of GTK+ newer than %d.%d.%d. The latest version of\n",
 760                major, minor, micro);
 761         printf("*** GTK+ is always available from ftp://ftp.gtk.org.\n");
 762         printf("***\n");
 763         printf("*** If you have already installed a sufficiently new version, this error\n");
 764         printf("*** probably means that the wrong copy of the gtk-config shell script is\n");
 765         printf("*** being found. The easiest way to fix this is to remove the old version\n");
 766         printf("*** of GTK+, but you can also set the GTK_CONFIG environment to point to the\n");
 767         printf("*** correct copy of gtk-config. (In this case, you will have to\n");
 768         printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
 769         printf("*** so that the correct libraries are found at run-time))\n");
 770       }
 771     }
 772   return 1;
 773 }
 774 ],, no_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
 775        CFLAGS="$ac_save_CFLAGS"
 776        LIBS="$ac_save_LIBS"
 777      fi
 778   fi
 779   if test "x$no_gtk" = x ; then
 780      AC_MSG_RESULT(yes)
 781      ifelse([$2], , :, [$2])
 782   else
 783      AC_MSG_RESULT(no)
 784      if test "$GTK_CONFIG" = "no" ; then
 785        echo "*** The gtk-config script installed by GTK could not be found"
 786        echo "*** If GTK was installed in PREFIX, make sure PREFIX/bin is in"
 787        echo "*** your path, or set the GTK_CONFIG environment variable to the"
 788        echo "*** full path to gtk-config."
 789      else
 790        if test -f conf.gtktest ; then
 791         :
 792        else
 793           echo "*** Could not run GTK test program, checking why..."
 794           CFLAGS="$CFLAGS $GTK_CFLAGS"
 795           LIBS="$LIBS $GTK_LIBS"
 796           AC_TRY_LINK([
 797 #include <gtk/gtk.h>
 798 #include <stdio.h>
 799 ],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
 800         [ echo "*** The test program compiled, but did not run. This usually means"
 801           echo "*** that the run-time linker is not finding GTK or finding the wrong"
 802           echo "*** version of GTK. If it is not finding GTK, you'll need to set your"
 803           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
 804           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
 805           echo "*** is required on your system"
 806           echo "***"
 807           echo "*** If you have an old version installed, it is best to remove it, although"
 808           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
 809           echo "***"
 810           echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
 811           echo "*** came with the system with the command"
 812           echo "***"
 813           echo "***    rpm --erase --nodeps gtk gtk-devel" ],
 814         [ echo "*** The test program failed to compile or link. See the file config.log for the"
 815           echo "*** exact error that occured. This usually means GTK was incorrectly installed"
 816           echo "*** or that you have moved GTK since it was installed. In the latter case, you"
 817           echo "*** may want to edit the gtk-config script: $GTK_CONFIG" ])
 818           CFLAGS="$ac_save_CFLAGS"
 819           LIBS="$ac_save_LIBS"
 820        fi
 821      fi
 822      GTK_CFLAGS=""
 823      GTK_LIBS=""
 824      ifelse([$3], , :, [$3])
 825   fi
 826   AC_SUBST(GTK_CFLAGS)
 827   AC_SUBST(GTK_LIBS)
 828   rm -f conf.gtktest
 829 ])
 830
 831 dnl --- *@-AC_TYPE_PTRDIFF_T-@* ---
 832 dnl
 833 dnl Author:     Ulrich Drepper
 834 dnl
 835 dnl Synopsis:   AC_TYPE_PTRDIFF_T
 836 dnl
 837 dnl Arguments:  ---
 838 dnl
 839 dnl Use:        Sets HAVE_PTRDIFF_T if the type exists.
 840
 841 AC_DEFUN(AM_TYPE_PTRDIFF_T,
 842   [AC_CACHE_CHECK([for ptrdiff_t], am_cv_type_ptrdiff_t,
 843      [AC_TRY_COMPILE([#include <stddef.h>], [ptrdiff_t p],
 844                      am_cv_type_ptrdiff_t=yes, am_cv_type_ptrdiff_t=no)])
 845    if test $am_cv_type_ptrdiff_t = yes; then
 846      AC_DEFINE(HAVE_PTRDIFF_T)
 847    fi
 848 ])
 849
 850 dnl --- *@-AM_WITH_REGEX-@* ---
 851 dnl
 852 dnl Author:     Unknown (possibly Franc,ois Pinard)
 853 dnl
 854 dnl Synopsis:   AM_WITH_REGEX
 855 dnl
 856 dnl Arguments:  ---
 857 dnl
 858 dnl Use:
 859 dnl             The idea is to distribute rx.[hc] and regex.[hc] together,
 860 dnl             for a while.  The WITH_REGEX symbol (which should also be
 861 dnl             documented in acconfig.h) is used to decide which of regex.h
 862 dnl             or rx.h should be included in the application.  If
 863 dnl             `./configure --with-regex' is given (the default), the
 864 dnl             package will use gawk's regex.  If `./configure
 865 dnl             --without-regex', a check is made to see if rx is already
 866 dnl             installed, as with newer Linux'es.  If not found, the package
 867 dnl             will use the rx from the distribution.  If found, the package
 868 dnl             will use the system's rx which, on Linux at least, will
 869 dnl             result in a smaller executable file.
 870
 871 AC_DEFUN(AM_WITH_REGEX,
 872 [AC_MSG_CHECKING(which of GNU rx or gawk's regex is wanted)
 873 AC_ARG_WITH(regex,
 874 [  --without-regex         use GNU rx in lieu of gawk's regex for matching],
 875 [test "$withval" = yes && am_with_regex=1],
 876 [am_with_regex=1])
 877 if test -n "$am_with_regex"; then
 878   AC_MSG_RESULT(regex)
 879   AC_DEFINE(WITH_REGEX)
 880   AC_CACHE_CHECK([for GNU regex in libc], am_cv_gnu_regex,
 881     AC_TRY_LINK([], [extern int re_max_failures; re_max_failures = 1],
 882                 am_cv_gnu_regex=yes, am_cv_gnu_regex=no))
 883   if test $am_cv_gnu_regex = no; then
 884     LIBOBJS="$LIBOBJS regex.o"
 885   fi
 886 else
 887   AC_MSG_RESULT(rx)
 888   AC_CHECK_FUNC(re_rx_search, , [LIBOBJS="$LIBOBJS rx.o"])
 889 fi
 890 AC_SUBST(LIBOBJS)dnl
 891 ])
 892
 893 dnl --- *@-AM_SANITY_CHECK-@*
 894 dnl
 895 dnl Author:     Unknown
 896 dnl
 897 dnl Synopsis:   AM_SANITY_CHECK
 898 dnl
 899 dnl Arguments:  ---
 900 dnl
 901 dnl Use:        Check for build environment sanity.
 902
 903 AC_DEFUN(AM_SANITY_CHECK,
 904 [AC_MSG_CHECKING([whether build environment is sane])
 905 # Just in case
 906 sleep 1
 907 echo timestamp > conftestfile
 908 # Do `set' in a subshell so we don't clobber the current shell's
 909 # arguments.  Must try -L first in case configure is actually a
 910 # symlink; some systems play weird games with the mod time of symlinks
 911 # (eg FreeBSD returns the mod time of the symlink's containing
 912 # directory).
 913 if (
 914    set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
 915    if test "$@" = "X"; then
 916       # -L didn't work.
 917       set X `ls -t $srcdir/configure conftestfile`
 918    fi
 919    test "[$]2" = conftestfile
 920    )
 921 then
 922    # Ok.
 923    :
 924 else
 925    AC_MSG_ERROR([newly created file is older than distributed files!
 926 Check your system clock])
 927 fi
 928 rm -f conftest*
 929 AC_MSG_RESULT(yes)])
 930
 931 dnl --- *@-AM_FUNC_STRDOD-@* ---
 932 dnl
 933 dnl Author:     Jim Meyering
 934 dnl
 935 dnl Synopsis:   AM_FUNC_STRTOD
 936 dnl
 937 dnl Arguments:  ---
 938 dnl
 939 dnl Use:        Checks for a working strtod function.
 940
 941 ## Copyright (C) 1996 Free Software Foundation, Inc.
 942
 943 ## This program is free software; you can redistribute it and/or modify
 944 ## it under the terms of the GNU General Public License as published by
 945 ## the Free Software Foundation; either version 2, or (at your option)
 946 ## any later version.
 947
 948 ## This program is distributed in the hope that it will be useful,
 949 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
 950 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 951 ## GNU General Public License for more details.
 952
 953 ## You should have received a copy of the GNU General Public License
 954 ## along with this program; if not, write to the Free Software
 955 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 956 ## 02111-1307, USA.
 957
 958 ## From Jim Meyering.
 959
 960 ## serial 1
 961
 962 ## @defmac AC_FUNC_STRTOD
 963 ## @maindex FUNC_STRTOD
 964 ## @ovindex LIBOBJS
 965 ## If the @code{strtod} function is not available, or does not work
 966 ## correctly (like the one on SunOS 5.4), add @samp{strtod.o} to output
 967 ## variable @code{LIBOBJS}.
 968 ## @end defmac
 969
 970 AC_DEFUN(AM_FUNC_STRTOD,
 971 [AC_CACHE_CHECK(for working strtod, am_cv_func_strtod,
 972 [AC_TRY_RUN([
 973 double strtod ();
 974 int
 975 main()
 976 {
 977   {
 978     /* Some versions of Linux strtod mis-parse strings with leading '+'.  */
 979     char *string = " +69";
 980     char *term;
 981     double value;
 982     value = strtod (string, &term);
 983     if (value != 69 || term != (string + 4))
 984       exit (1);
 985   }
 986
 987   {
 988     /* Under Solaris 2.4, strtod returns the wrong value for the
 989        terminating character under some conditions.  */
 990     char *string = "NaN";
 991     char *term;
 992     strtod (string, &term);
 993     if (term != string && *(term - 1) == 0)
 994       exit (1);
 995   }
 996   exit (0);
 997 }
 998 ], am_cv_func_strtod=yes, am_cv_func_strtod=no, am_cv_func_strtod=no)])
 999 test $am_cv_func_strtod = no && LIBOBJS="$LIBOBJS strtod.o"
1000 AC_SUBST(LIBOBJS)dnl
1001 am_cv_func_strtod_needs_libm=no
1002 if test $am_cv_func_strtod = no; then
1003   AC_CHECK_FUNCS(pow)
1004   if test $ac_cv_func_pow = no; then
1005     AC_CHECK_LIB(m, pow, [am_cv_func_strtod_needs_libm=yes],
1006                  [AC_MSG_WARN(can't find library containing definition of pow)])
1007   fi
1008 fi
1009 ])
1010
1011 dnl --- *@-AM_SYS_POSIX_TERMIOS-@* ---
1012 dnl
1013 dnl Author:     Jim Meyering
1014 dnl
1015 dnl Synopsis:   AM_SYS_POSIX_TERMIOS
1016 dnl
1017 dnl Arguments:  ---
1018 dnl
1019 dnl Use:        Checks for a POSIX termios.h.
1020
1021 AC_DEFUN(AM_SYS_POSIX_TERMIOS,
1022 [AC_CACHE_CHECK([POSIX termios], am_cv_sys_posix_termios,
1023   [AC_TRY_LINK([#include <sys/types.h>
1024 #include <unistd.h>
1025 #include <termios.h>],
1026   [/* SunOS 4.0.3 has termios.h but not the library calls.  */
1027    tcgetattr(0, 0);],
1028   am_cv_sys_posix_termios=yes,
1029   am_cv_sys_posix_termios=no)])
1030 ])
1031
1032 dnl----- Macros by Mark Wooding ------------------------------ *@--IGNORE--@*
1033
1034 dnl --- *@-mdw_REQUIRE-@* ---
1035 dnl
1036 dnl Author:     Mark Wooding
1037 dnl
1038 dnl Synopsis:   mdw_REQUIRE(MACRO, ARGS...)
1039 dnl
1040 dnl Arguments:  MACRO = name of a macro which should have been called
1041 dnl             ARGS = arguments to pass
1042 dnl
1043 dnl Use:        Like `AC_REQUIRE', only it handles arguments.
1044
1045 AC_DEFUN(mdw_REQUIRE,
1046 [ifdef([AC_PROVIDE_$1], ,
1047 [AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))dnl
1048 indir($@)
1049 AC_DIVERT_POP()dnl
1050 ])])
1051
1052 dnl --- *@-mdw_CURSES-@* ---
1053 dnl
1054 dnl Author:     Mark Wooding
1055 dnl
1056 dnl Synopsis:   mdw_CURSES
1057 dnl
1058 dnl Arguments:  ---
1059 dnl
1060 dnl Use:        Searches for a `curses' library (one of `ncurses' or
1061 dnl             `curses') using mdw_CHECK_MANYLIBS.  If one is found, the
1062 dnl             preprocessor macro HAVE_CURSES is defined, and a search is
1063 dnl             made for a `curses' header file (one of <ncurses.h>,
1064 dnl             <ncurses/ncurses.h> or <curses.h>) using AC_CHECK_HEADERS
1065 dnl             and the appropriate preprocessor symbol is defined.
1066 dnl             Finally, a check is made for the function `wresize' using
1067 dnl             AC_CHECK_FUNCS.
1068
1069 AC_DEFUN(mdw_CURSES,
1070 [mdw_CHECK_MANYLIBS(newwin, ncurses curses, AC_DEFINE(HAVE_CURSES))
1071 if test $mdw_cv_lib_newwin != no; then
1072 AC_CHECK_HEADERS([ncurses.h ncurses/ncurses.h curses.h], [break])
1073 if test "$ac_cv_header_ncurses_h" = "no" &&
1074    test "$ac_cv_header_ncurses_ncurses_h" = "no" &&
1075    test "$ac_cv_header_curses_h" = "no"; then
1076      AC_MSG_WARN([couldn't find a \`curses' header.  Assuming \`curses.h'.])
1077      AC_DEFINE(HAVE_CURSES_H)
1078 fi
1079 AC_CHECK_FUNCS(wresize)
1080 fi])
1081
1082 dnl --- *@-mdw_TYPE_SSIZE_T-@* ---
1083 dnl
1084 dnl Author:     Mark Wooding
1085 dnl
1086 dnl Synopsis:   mdw_TYPE_SSIZE_T
1087 dnl
1088 dnl Arguments:  ---
1089 dnl
1090 dnl Use:        Checks whether the Posix type `ssize_t' is defined.  If not,
1091 dnl             it defaults to `int'.
1092
1093 AC_DEFUN(mdw_TYPE_SSIZE_T,
1094 [AC_REQUIRE([AC_HEADER_STDC])
1095 AC_CACHE_CHECK(for ssize_t, mdw_cv_ssize_t,
1096 [AC_EGREP_CPP(ssize_t,
1097 [#include <sys/types.h>
1098 #if HAVE_UNISTD_H
1099 #include <unistd.h>
1100 #endif
1101 #if STDC_HEADERS
1102 #include <stdlib.h>
1103 #include <stddef.h>
1104 #endif],
1105 [mdw_cv_ssize_t=yes], [mdw_cv_ssize_t=no])])
1106 if test $mdw_cv_ssize_t = no; then
1107   AC_DEFINE(ssize_t, int)
1108 fi])
1109
1110 dnl --- *@-mdw_DECL_ENVIRON-@* ---
1111 dnl
1112 dnl Author:     Mark Wooding
1113 dnl
1114 dnl Synopsis:   mdw_DECL_ENVIRON
1115 dnl
1116 dnl Arguments:  ---
1117 dnl
1118 dnl Use:        Searches for a declaration of the global `environ' variable.
1119 dnl             If one is found in one of the `usual' places, DECL_ENVIRON
1120 dnl             is defined as a preprocessor symbol.
1121
1122 AC_DEFUN(mdw_DECL_ENVIRON,
1123 [AC_CACHE_CHECK([for declaration of \`environ'], mdw_cv_environ,
1124 [AC_EGREP_CPP(environ,
1125 [#include <sys/types.h>
1126 #if HAVE_UNISTD_H
1127 #include <unistd.h>
1128 #endif
1129 #if STDC_HEADERS
1130 #include <stdlib.h>
1131 #include <stddef.h>
1132 #endif], [mdw_cv_environ=yes], [mdw_cv_environ=no])])
1133 if test $mdw_cv_environ = yes; then
1134   AC_DEFINE(DECL_ENVIRON)
1135 fi])
1136
1137 dnl --- *@-mdw_CHECK_MANYLIBS-@* ---
1138 dnl
1139 dnl Author:     Mark Wooding
1140 dnl
1141 dnl Synopsis:   mdw_CHECK_MANYLIBS(FUNC, LIBS, [IF-FOUND], [IF-NOT-FOUND],
1142 dnl                     [INCLUDES], [ARGS])
1143 dnl
1144 dnl Arguments:  FUNC = a function to try to find
1145 dnl             LIBS = a whitespace-separated list of libraries to search
1146 dnl             IF-FOUND = what to do when the function is found
1147 dnl             IF-NOT-FOUND = what to do when the function isn't found
1148 dnl             INCLUDES = other include files to add
1149 dnl             ARGS = arguments to pass the function
1150 dnl
1151 dnl Use:        Searches for a library which defines FUNC.  It first tries
1152 dnl             without any libraries; then it tries each library specified
1153 dnl             in LIBS in turn.  If it finds a match, it adds the
1154 dnl             appropriate library to `LIBS'.
1155 dnl
1156 dnl             This is particularly handy under DIREIX: if you link with
1157 dnl             `-lnsl' then you get non-NIS-aware versions of getpwnam and
1158 dnl             so on, which is clearly a Bad Thing.
1159
1160 AC_DEFUN(mdw_CHECK_MANYLIBS,
1161 [AC_CACHE_CHECK([for library containing $1], [mdw_cv_lib_$1],
1162 [mdw_save_LIBS="$LIBS"
1163 mdw_cv_lib_$1="no"
1164 AC_TRY_LINK([$5], [$1($6)], [mdw_cv_lib_$1="none required"])
1165 test "$mdw_cv_lib_$1" = "no" && for i in $2; do
1166 LIBS="-l$i $mdw_save_LIBS"
1167 AC_TRY_LINK([$5], [$1($6)],
1168 [mdw_cv_lib_$1="-l$i"
1169 break])
1170 done
1171 LIBS="$mdw_save_LIBS"])
1172 if test "$mdw_cv_lib_$1" != "no"; then
1173   test "$mdw_cv_lib_$1" = "none required" || LIBS="$mdw_cv_lib_$1 $LIBS"
1174   $3
1175 else :
1176   $4
1177 fi])
1178
1179 dnl --- *@-mdw__PERL_VERSION-@* ---
1180 dnl
1181 dnl AC_DEFUN relies on `[', `]' being quotes, so I have to drop down a level.
1182
1183 changequote(<<, >>)
1184 define(mdw__PERL_VERSION, <<$1 -e 'exit ($] < $2);' >&5 2>&5>>)
1185 changequote([, ])
1186
1187 dnl --- *@-mdw_PROG_PERL-@* ---
1188 dnl
1189 dnl Author:     Mark Wooding
1190 dnl
1191 dnl Synopsis:   mdw_PROG_PERL(VERSION, [IF-FOUND], [IF-NOT-FOUND])
1192 dnl
1193 dnl Arguments:  VERSION = version number of Perl required
1194 dnl             IF-FOUND = what to do if it's found
1195 dnl             IF-NOT-FOUND = what to do if it isn't
1196 dnl
1197 dnl Use:        Attempts to find a working version of Perl with a late
1198 dnl             enough version number.  It supplies an option `--with-perl'
1199 dnl             to allow the user to provide a Perl interpreter.  If one
1200 dnl             isn't provided explicitly, it searches for `perl' and `perl5'
1201 dnl             in the current PATH, asking them whether they have a late
1202 dnl             enough version number.  The path of the working Perl is
1203 dnl             put into the `PERL' environment variable; `AC_SUBST' is used
1204 dnl             to substitute its value into Perl scripts.  If there is no
1205 dnl             Perl to be found, the value of `PERL' is set to be `none'.
1206
1207 AC_DEFUN(mdw_PROG_PERL,
1208 [AC_ARG_WITH([perl],
1209 [  --with-perl=PERL       specify path to Perl version $1 or newer],
1210 [PERL="$withval"],
1211 if test -z "$PERL"; then
1212 [AC_CACHE_CHECK([for Perl version $1 or later], mdw_cv_prog_perl,
1213 [mdw_cv_prog_perl="none"
1214 for p in `echo "$PATH:/usr/local/bin" | tr ":" " "`; do
1215   case $p in /*) ;; *) p=`pwd`/$p ;; esac
1216   if mdw__PERL_VERSION(["$p/perl"], $1); then
1217     mdw_cv_prog_perl="$p/perl"
1218     break
1219   fi
1220   if mdw__PERL_VERSION(["$p/perl5"], $1); then
1221     mdw_cv_prog_perl="$p/perl5"
1222     break
1223   fi
1224 done])
1225 PERL="$mdw_cv_prog_perl"])
1226 fi
1227
1228 AC_SUBST(PERL)dnl
1229 if test "$PERL" = "none"; then :
1230   $3
1231 else :
1232   $2
1233 fi])
1234
1235 dnl --- *@-mdw_CHECK_PERL-@* ---
1236 dnl
1237 dnl Author:     Mark Wooding
1238 dnl
1239 dnl Synopsis:   mdw_CHECK_PERL(VERSION)
1240 dnl
1241 dnl Arguments:  VERSION = version number of Perl required
1242 dnl
1243 dnl Use:        Verifies that the Perl interpreter in the `PERL' shell
1244 dnl             variable actually works and is of the right version.  If it's
1245 dnl             not, an error is raised and configuration is aborted.
1246
1247 AC_DEFUN(mdw_CHECK_PERL,
1248 [mdw_REQUIRE([mdw_PROG_PERL], [$1])
1249 AC_MSG_CHECKING([whether Perl ($PERL) works])
1250 if test "$PERL" != "none" && mdw__PERL_VERSION("$PERL", $1); then
1251   AC_MSG_RESULT([yes])
1252 else
1253   AC_MSG_RESULT([no])
1254   AC_MSG_ERROR([Perl version $1 or newer not found.
1255 If you have a recent enough Perl, and I just failed to find it, try using
1256 the --with-perl=PERL option to give me an explicit pathname.])
1257 fi])
1258
1259 dnl --- *@-mdw_PERLLIB_CHECK-@* ---
1260 dnl
1261 dnl Author:     Mark Wooding
1262 dnl
1263 dnl Synopsis:   mdw_PERLLIB_CHECK(LIBRARY)
1264 dnl
1265 dnl Arguments:  LIBRARY = name of a Perl library to check for
1266 dnl
1267 dnl Use:        Ensures that a Perl script can `use LIBRARY;'.  If it can,
1268 dnl             all's well and good; if it can't, `LIBRARY.pm' is added to
1269 dnl             the variable `NEEDED_PERLLIBS' and a line which adds
1270 dnl             `pkgdatadir' to Perl's `@INC' array is placed in the
1271 dnl             variable `INC_PERLLIBS'; `AC_SUBST' is called for both of
1272 dnl             these variables.  It's expected that `NEEDED_PERLLIBS' will
1273 dnl             be used in the `Makefile.in' to decide which versions from
1274 dnl             the distribution need installing.
1275 dnl
1276 dnl             This macro isn't terribly useful in the general case.  It
1277 dnl             Also implicitly assumes that `$PERL' is Perl 5 or later.
1278
1279 AC_DEFUN(mdw__PERLLIB_INIT,
1280 [AC_SUBST(INC_PERLLIBS)dnl
1281 AC_SUBST(NEEDED_PERLLIBS)dnl
1282 ])
1283
1284 AC_DEFUN(mdw_PERLLIB_CHECK,
1285 [AC_REQUIRE([mdw__PERLLIB_INIT])
1286 mdw_REQUIRE([mdw_CHECK_PERL], 5)
1287 AC_CACHE_CHECK([for Perl library $1], mdw_cv_perllib_$1,
1288 [if $PERL -e 'use $1;' >&5 2>&5; then
1289   mdw_cv_perllib_$1="yes"
1290 else
1291   mdw_cv_perllib_$1="no"
1292 fi])
1293
1294 if test "$mdw_cv_perllib_$1" = "no"; then
1295   NEEDED_PERLLIBS="$NEEDED_PERLLIBS $1.pm"
1296
1297   # --- Deal with autoconf lossage ---
1298   #
1299   # It doesn't want to define `prefix' until rather later on, so I have
1300   # to bodge it here.
1301
1302   if test -z "$INC_PERLLIBS"; then
1303     mdw_old_prefix="$prefix"
1304     test "$prefix" = "NONE" && prefix="$ac_default_prefix";
1305     INC_PERLLIBS="BEGIN { push @INC, \"`eval echo $datadir/$PACKAGE`\"; }"
1306     prefix="$mdw_old_prefix";
1307   fi
1308 fi])
1309
1310 dnl --- *@-mdw_GCC_FLAGS-@* ---
1311 dnl
1312 dnl Author:     Mark Wooding
1313 dnl
1314 dnl Synopsis:   mdw_GCC_FLAGS([FLAGS], [CFLAGS], [C++FLAGS])
1315 dnl
1316 dnl Arguments:  FLAGS = GCC compiler flags to add (default is
1317 dnl                     `-pedantic -Wall')
1318 dnl             CFLAGS = GCC C compiler flags to add (default is empty)
1319 dnl             C++FLAGS = GCC C++ compiler flags to add (default is
1320 dnl                     `-fhandle-exceptions').
1321 dnl
1322 dnl Use:        If the C compiler is GCC, add the compiler flags.
1323
1324 AC_DEFUN(mdw_GCC_FLAGS,
1325 [if test "$GCC" = "yes"; then
1326   CFLAGS="$CFLAGS ifelse([$1], [], [-pedantic -Wall], [$1])"
1327   CFLAGS="$CFLAGS ifelse([$2], [], [], [$2])"
1328 fi
1329 if test "$GXX" = "yes"; then
1330   CXXFLAGS="$CXXFLAGS ifelse([$1], [], [-pedantic -Wall], [$1])"
1331   CXXFLAGS="$CXXFLAGS ifelse([$3], [], [-fhandle-exceptions], [$3])"
1332 fi])
1333
1334 dnl *@-mdw_INIT_LIB-@*
1335 dnl
1336 dnl Author:     Mark Wooding
1337 dnl
1338 dnl Synopsis:   mdw_INIT_LIB(LIB, NAME, VERSION, [PACKAGE])
1339 dnl
1340 dnl Arguments:  LIB = the name of the library (and the package)
1341 dnl             NAME = a presentable version of the library's name
1342 dnl             VERSION = version of the library
1343 dnl             PACKAGE = package name to pass on to AM_INIT_AUTOMAKE
1344 dnl
1345 dnl Use:        Sets up various useful variables.  This macro calls
1346 dnl             AM_INIT_AUTOMAKE, which might be considered useful.  It also
1347 dnl             provides variables for the use of `lib-config.in'.
1348
1349 AC_DEFUN([mdw_INIT_LIB],
1350 [AM_INIT_AUTOMAKE(ifelse([$4], [], [$1], [$4]), [$3])
1351 LIBRARY="$1" AC_SUBST(LIBRARY)
1352 LIBNAME="$2" AC_SUBST(LIBNAME)])
1353
1354 dnl *@-mdw_LIB_CONFIG-@*
1355 dnl
1356 dnl Author:     Mark Wooding
1357 dnl
1358 dnl Synopsis:   mdw_LIB_CONFIG(LIB, NAME, VERSION, IF-FOUND, IF-NOT-FOUND)
1359 dnl
1360 dnl Arguments:  LIB = the name of the library (and its configuration program)
1361 dnl             NAME = a presentable version of the library's name
1362 dnl             VERSION = version of library required
1363 dnl             IF-FOUND = what to do if found
1364 dnl             IF-NOT-FOUND = what to do if not found
1365 dnl
1366 dnl Use:        Configures a library client program, using a configuration
1367 dnl             script provided by the library maintainer.
1368 dnl
1369 dnl             The default version is 1.0.0pre0; the default action is to
1370 dnl             add everything to the CFLAGS and LIBS variables, and complain
1371 dnl             if the library couldn't be found.
1372 dnl
1373 dnl             The variable LIB_VERSION contains the version number of
1374 dnl             the library; LIB_CFLAGS is the C compiler flags required
1375 dnl             and LIB_LIBS is the linker flags.
1376
1377 AC_DEFUN([mdw_LIB_CONFIG],
1378 [pushdef([upname], translit([$1], [a-z], [A-Z]))dnl
1379 AC_MSG_CHECKING([for $2 library])
1380 if $1-config --check $3 >/dev/null 2>&1; then
1381   upname[]_VERSION=`$1-config --version`
1382   upname[]_CFLAGS=`$1-config --cflags`
1383   upname[]_LIBS=`$1-config --libs`
1384   AC_SUBST(upname[]_VERSION)
1385   AC_SUBST(upname[]_CFLAGS)
1386   AC_SUBST(upname[]_LIBS)
1387   ifelse([$4], [],
1388   [CFLAGS="$CFLAGS $upname[]_CFLAGS"
1389   LIBS="$upname[]_LIBS $LIBS"],
1390   $4)
1391   AC_MSG_RESULT([$upname[]_VERSION])
1392 else
1393   ifelse([$5], [],
1394   AC_MSG_ERROR([$2 library not found or too old.]),
1395   $5)
1396   AC_MSG_RESULT([not found])
1397 fi
1398 popdef([upname])])
1399
1400 dnl *@-mdw_MLIB-@*
1401 dnl
1402 dnl Author:     Mark Wooding
1403 dnl
1404 dnl Synopsis:   mdw_MLIB(VERSION, IF-FOUND, IF-NOT-FOUND
1405 dnl
1406 dnl Arguments:  VERSION = version of library required
1407 dnl             IF-FOUND = what to do if found
1408 dnl             IF-NOT-FOUND = what to do if not found
1409 dnl
1410 dnl Use:        Configures an mLib client program.
1411
1412 AC_DEFUN([mdw_MLIB], [mdw_LIB_CONFIG(mLib, mLib, $@)])
1413
1414 dnl *@-mdw_MGLIB-@*
1415 dnl
1416 dnl Author:     Mark Wooding
1417 dnl
1418 dnl Synopsis:   mdw_MGLIB(VERSION, IF-FOUND, IF-NOT-FOUND
1419 dnl
1420 dnl Arguments:  VERSION = version of library required
1421 dnl             IF-FOUND = what to do if found
1422 dnl             IF-NOT-FOUND = what to do if not found
1423 dnl
1424 dnl Use:        Configures an mgLib client program.
1425
1426 AC_DEFUN([mdw_MGLIB],
1427 [mdw_REQUIRE([mdw_MLIB], [1.6.0])
1428 mdw_LIB_CONFIG(mgLib, mgLib, $@)])
1429
1430 dnl *@-mdw_CATACOMB-@*
1431 dnl
1432 dnl Author:     Mark Wooding
1433 dnl
1434 dnl Synopsis:   mdw_CATACOMB([VERSION], [IF-FOUND], [IF-NOT-FOUND])
1435 dnl
1436 dnl Arguments:  VERSION = version of Catacomb required
1437 dnl             IF-FOUND = what to do if found
1438 dnl             IF-NOT-FOUND = what to do if not found
1439 dnl
1440 dnl Use:        Configures the program as a Catacomb client.
1441
1442 AC_DEFUN([mdw_CATACOMB],
1443 [mdw_REQUIRE([mdw_MLIB], [1.6.0])
1444 mdw_LIB_CONFIG(catacomb, Catacomb, $@)])
1445
1446 dnl *@-mdw_PK-@*
1447 dnl
1448 dnl Author:     Mark Wooding
1449 dnl
1450 dnl Synopsis:   mdw_PK([VERSION], [IF-FOUND], [IF-NOT-FOUND])
1451 dnl
1452 dnl Arguments:  VERSION = version of PK required
1453 dnl             IF-FOUND = what to do if found
1454 dnl             IF-NOT-FOUND = what to do if not found
1455 dnl
1456 dnl Use:        Configures the program as a PK client.
1457
1458 AC_DEFUN([mdw_PK],
1459 [mdw_REQUIRE([mdw_MLIB], [1.6.0])
1460 mdw_LIB_CONFIG(pk, PK, $@)])
1461
1462 dnl --- *@-mdw_OPT_NDEBUG-@* ---
1463 dnl
1464 dnl Author:     Mark Wooding
1465 dnl
1466 dnl Synopsis:   mdw_OPT_NDEBUG
1467 dnl
1468 dnl Arguments:  ---
1469 dnl
1470 dnl Use:        Turns on the `NDEBUG' flag, to disable useful things like
1471 dnl             assertions.
1472
1473 AC_DEFUN(mdw_OPT_NDEBUG,
1474 [AC_ARG_ENABLE(debugging,
1475 [  --disable-debugging     spews vast swathes of useless information],
1476 [if test "$enableval" = "no"; then
1477   AC_DEFINE(NDEBUG, 1)
1478 fi])])
1479
1480 dnl --- *@-mdw_OPT_EFENCE-@* ---
1481 dnl
1482 dnl Author:     Mark Wooding
1483 dnl
1484 dnl Synopsis:   mdw_OPT_EFENCE
1485 dnl
1486 dnl Arguments:  ---
1487 dnl
1488 dnl Use:        Links with the Electric Fence library.
1489
1490 AC_DEFUN(mdw_OPT_EFENCE,
1491 [AC_ARG_WITH(electric-fence,
1492 [  --with-electric-fence   link programs with Electric Fence],
1493 [if test "$withval" = "yes"; then
1494   AC_CHECK_LIB(efence, malloc)
1495 fi])])
1496
1497 dnl --- *@-mdw_OPT_TRACE-@* ---
1498 dnl
1499 dnl Author:     Mark Wooding
1500 dnl
1501 dnl Synopsis:   mdw_OPT_TRACE
1502 dnl
1503 dnl Arguments:  ---
1504 dnl
1505 dnl Use:        Turns on the `NTRACE' flag, to disable useful things like
1506 dnl             trace outputs.
1507
1508 AC_DEFUN(mdw_OPT_TRACE,
1509 [AC_ARG_ENABLE(tracing,
1510 [  --disable-tracing       disable output of trace information],
1511 [if test "$enableval" = "no"; then
1512   AC_DEFINE(NTRACE, 1)
1513 fi])])
1514
1515 dnl --- *@-mdw_OPT_mLib_TRACK-@* ---
1516 dnl
1517 dnl Author:     Mark Wooding
1518 dnl
1519 dnl Synopsis:   mdw_OPT_mLib_TRACK(PROGRAM)
1520 dnl
1521 dnl Arguments:  PROGRAM = name of this program or package.
1522 dnl
1523 dnl Use:        Controls the unsupported mLib memory tracker.  The
1524 dnl             following are defined:
1525 dnl
1526 dnl               --enable-track          turns on malloc tracking
1527 dnl               --enable-blame-PROGRAM  tracks malloc contexts in PROGRAM
1528 dnl
1529 dnl             There must be  a separate `blame' option for each program,
1530 dnl             so that the various blame options in a hierarchy get
1531 dnl             propagated properly.  This is an obsolete feature from the
1532 dnl             days when mLib was provided as a subdirectory of other
1533 dnl             packages.
1534
1535 AC_DEFUN(mdw_OPT_mLib_TRACK,
1536 [AC_REQUIRE([mdw_OPT_TRACE])
1537 AC_ARG_ENABLE(track,
1538 [  --enable-track          enable tracking of malloc and free],
1539 [AC_DEFINE(TRACK_ENABLE, 1)])
1540 AC_ARG_ENABLE(blame-$1,
1541 [  --enable-blame-$1
1542                           track malloc contexts while in $1],
1543 [AC_DEFINE(TRACK_BLAME, 1)])])
1544
1545 dnl --- *@-mdw_OPT_mLib_DEBUG-@* ---
1546 dnl
1547 dnl Author:     Mark Wooding
1548 dnl
1549 dnl Synopsis:   mdw_OPT_mLib_DEBUG(PROGRAM)
1550 dnl
1551 dnl Arguments:  PROGRAM = name of this program or package.
1552 dnl
1553 dnl Use:        Provides all of the above debugging options.
1554
1555 AC_DEFUN(mdw_OPT_mLib_DEBUG,
1556 [mdw_REQUIRE([mdw_OPT_NDEBUG])
1557 mdw_REQUIRE([mdw_OPT_mLib_TRACK], [$1])])
1558
1559 dnl----- That's all, folks --------------------------------- *@--GLOB-END--@*