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

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