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

   1 dnl -*-fundamental-*-                                     *@--GLOB-HEADER--@*
   2 dnl
   3 dnl $Id: aclocal.glob,v 1.1 1999/05/05 19:23:47 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 1.1  1999/05/05 19:23:47  mdw
  32 dnl Initial revision
  33 dnl
  34
  35 dnl----- Common files distribution --------------------------- *@--NOTICE--@*
  36 dnl
  37 dnl $Id: aclocal.glob,v 1.1 1999/05/05 19:23:47 mdw Exp $
  38
  39 dnl --- *@-AC_PROG_CC_STDC-@* ---
  40 dnl
  41 dnl Author:     Franc,ois Pinard
  42 dnl
  43 dnl Synopsis:   AC_PROG_CC_STDC
  44 dnl
  45 dnl Arguments:  ---
  46 dnl
  47 dnl Use:        If the C compiler in not in ANSI C mode by default, try to
  48 dnl             add an option to output variable `CC' to make it so.  This
  49 dnl             macro tries various options that select ANSI C on some system
  50 dnl             or another.  It considers the compiler to be in ANSI C mode
  51 dnl             if it defines `__STDC__' to 1 and handles function prototypes
  52 dnl             correctly.
  53 dnl
  54 dnl             If you use this macro, you should check after calling it
  55 dnl             whether the C compiler has been set to accept ANSI C; if not,
  56 dnl             the shell variable `ac_cv_prog_cc_stdc' is set to `no'.  If
  57 dnl             you wrote your source code in ANSI C, you can make an
  58 dnl             un-ANSIfied copy of it by using the program `ansi2knr', which
  59 dnl             comes with Ghostscript.
  60 dnl
  61 dnl                                     (documentation by Franc,ois Pinard)
  62
  63 AC_DEFUN(AM_PROG_CC_STDC,
  64 [AC_REQUIRE([AC_PROG_CC])
  65 AC_BEFORE([$0], [AC_C_INLINE])
  66 AC_BEFORE([$0], [AC_C_CONST])
  67 AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C)
  68 AC_CACHE_VAL(am_cv_prog_cc_stdc,
  69 [am_cv_prog_cc_stdc=no
  70 ac_save_CC="$CC"
  71 # Don't try gcc -ansi; that turns off useful extensions and
  72 # breaks some systems' header files.
  73 # AIX                   -qlanglvl=ansi
  74 # Ultrix and OSF/1      -std1
  75 # HP-UX                 -Aa -D_HPUX_SOURCE
  76 # SVR4                  -Xc -D__EXTENSIONS__
  77 for ac_arg in "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
  78 do
  79   CC="$ac_save_CC $ac_arg"
  80   AC_TRY_COMPILE(
  81 [#if !defined(__STDC__) || __STDC__ != 1
  82 choke me
  83 #endif
  84 /* DYNIX/ptx V4.1.3 can't compile sys/stat.h with -Xc -D__EXTENSIONS__. */
  85 #ifdef _SEQUENT_
  86 # include <sys/types.h>
  87 # include <sys/stat.h>
  88 #endif
  89 ], [
  90 int test (int i, double x);
  91 struct s1 {int (*f) (int a);};
  92 struct s2 {int (*f) (double a);};],
  93 [am_cv_prog_cc_stdc="$ac_arg"; break])
  94 done
  95 CC="$ac_save_CC"
  96 ])
  97 if test -z "$am_cv_prog_cc_stdc"; then
  98   AC_MSG_RESULT([none needed])
  99 else
 100   AC_MSG_RESULT($am_cv_prog_cc_stdc)
 101 fi
 102 case "x$am_cv_prog_cc_stdc" in
 103   x|xno) ;;
 104   *) CC="$CC $am_cv_prog_cc_stdc" ;;
 105 esac
 106 ])
 107
 108 dnl----- AutoMake macros ------------------------------------- *@--IGNORE--@*
 109
 110 dnl --- *@-AM_CONDITIONAL-@* ---
 111 dnl
 112 dnl Author:     Unknown
 113 dnl
 114 dnl Synopsis:   AM_CONDITIONAL(NAME, TEST)
 115 dnl
 116 dnl Arguments:  NAME = name of the conditional
 117 dnl             TEST = a shell list to execute
 118 dnl
 119 dnl Use:        Allows conditional sections in Makefiles.
 120
 121 AC_DEFUN(AM_CONDITIONAL,
 122 [AC_SUBST($1_TRUE)
 123 AC_SUBST($1_FALSE)
 124 if $2; then
 125   $1_TRUE=
 126   $1_FALSE='#'
 127 else
 128   $1_TRUE='#'
 129   $1_FALSE=
 130 fi])
 131
 132 dnl --- *@-AM_CYGWIN32-@* ---
 133 dnl
 134 dnl Author:     Cygnus (I guess)
 135 dnl
 136 dnl Synopsis:   AM_CYGWIN32
 137 dnl
 138 dnl Arguments:  ---
 139 dnl
 140 dnl Use:        Check to see if we're running under Cygwin32, without using
 141 dnl             AC_CANONICAL_*.  If so, set output variable EXEEXT to
 142 dnl             ".exe".  Otherwise set it to "".
 143
 144 dnl AM_CYGWIN32()
 145 dnl You might think we can do this by checking for a cygwin32-specific
 146 dnl cpp define.  We can't, because cross-compilers that target
 147 dnl cygwin32 don't use the .exe suffix.  I don't know why.
 148 AC_DEFUN(AM_CYGWIN32,
 149 [AC_CACHE_CHECK(for Cygwin32 environment, am_cv_cygwin32,
 150 [cat > conftest.$ac_ext << 'EOF'
 151 int main () {
 152 /* Nothing.  */
 153 return 0; }
 154 EOF
 155 if AC_TRY_EVAL(ac_link) && test -s conftest.exe; then
 156    am_cv_cygwin32=yes
 157 else
 158    am_cv_cygwin32=no
 159 fi
 160 rm -f conftest*])
 161 EXEEXT=
 162 test "$am_cv_cygwin32" = yes && EXEEXT=.exe
 163 AC_SUBST(EXEEXT)])
 164
 165 dnl --- *@-AM_WITH_DMALLOC-@* ---
 166 dnl
 167 dnl Author:     Franc,ois Pinard
 168 dnl
 169 dnl Synopsis:   AM_WITH_DMALLOC
 170 dnl
 171 dnl Arguments:  ---
 172 dnl
 173 dnl Use:        Links with `-dmalloc' if told to by the user.
 174
 175 ## ----------------------------------- ##
 176 ## Check if --with-dmalloc was given.  ##
 177 ## From Franc,ois Pinard               ##
 178 ## ----------------------------------- ##
 179
 180 # serial 1
 181
 182 AC_DEFUN(AM_WITH_DMALLOC,
 183 [AC_MSG_CHECKING(if malloc debugging is wanted)
 184 AC_ARG_WITH(dmalloc,
 185 [  --with-dmalloc          use dmalloc, as in
 186                           ftp://ftp.letters.com/src/dmalloc/dmalloc.tar.gz],
 187 [if test "$withval" = yes; then
 188   AC_MSG_RESULT(yes)
 189   AC_DEFINE(WITH_DMALLOC)
 190   LIBS="$LIBS -ldmalloc"
 191   LDFLAGS="$LDFLAGS -g"
 192 else
 193   AC_MSG_RESULT(no)
 194 fi], [AC_MSG_RESULT(no)])
 195 ])
 196
 197 dnl --- *@-AM_FUNC_ERROR_AT_LINE-@* ---
 198 dnl
 199 dnl Author:     Jim Meyering
 200 dnl
 201 dnl Synopsis:   AM_FUNC_ERROR_AT_LINE
 202 dnl
 203 dnl Arguments:  ---
 204 dnl
 205 dnl Use:        Use this if you use the GNU error.[ch].
 206
 207 dnl FIXME: Migrate into libit
 208
 209 AC_DEFUN(AM_FUNC_ERROR_AT_LINE,
 210 [AC_CACHE_CHECK([for error_at_line], am_cv_lib_error_at_line,
 211  [AC_TRY_LINK([],[error_at_line(0, 0, "", 0, "");],
 212               am_cv_lib_error_at_line=yes,
 213               am_cv_lib_error_at_line=no)])
 214  if test $am_cv_lib_error_at_line = no; then
 215    LIBOBJS="$LIBOBJS error.o"
 216  fi
 217  AC_SUBST(LIBOBJS)dnl
 218 ])
 219
 220 dnl --- *@-AM_INIT_GUILE_MODULE-@* ---
 221 dnl
 222 dnl Author:     Unknown
 223 dnl
 224 dnl Synopsis:   AM_INIT_GUILE_MODULE(MODNAME)
 225 dnl
 226 dnl Arguments:  MODNAME = value to initialise `module' variable with
 227 dnl
 228 dnl Use:        This macro will automatically get the guile version from the
 229 dnl             top-level srcdir, and will initialize automake.  It also
 230 dnl             defines the `module' variable.
 231
 232 AC_DEFUN([AM_INIT_GUILE_MODULE],[
 233 . $srcdir/../GUILE-VERSION
 234 AM_INIT_AUTOMAKE($PACKAGE, $VERSION)
 235 AC_CONFIG_AUX_DIR(..)
 236 module=[$1]
 237 AC_SUBST(module)])
 238
 239 dnl --- *@-AM_CONFIG_HEADER-@* ---
 240 dnl
 241 dnl Author:     Unknown
 242 dnl
 243 dnl Synopsis:   AM_CONFIG_HEADER(HEADER ...)
 244 dnl
 245 dnl Arguments:  HEADER = a header spec, as for AC_CONFIG_HEADER
 246 dnl
 247 dnl Use:        Like AC_CONFIG_HEADER, but automatically create stamp file.
 248
 249 AC_DEFUN(AM_CONFIG_HEADER,
 250 [AC_PREREQ([2.12])
 251 AC_CONFIG_HEADER([$1])
 252 dnl When config.status generates a header, we must update the stamp-h file.
 253 dnl This file resides in the same directory as the config header
 254 dnl that is generated.  We must strip everything past the first ":",
 255 dnl and everything past the last "/".
 256 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
 257 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
 258 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/
 259 \)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
 260 <<am_indx=1
 261 for am_file in <<$1>>; do
 262   case " <<$>>CONFIG_HEADERS " in
 263   *" <<$>>am_file "*<<)>>
 264     echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
 265     ;;
 266   esac
 267   am_indx=`expr "<<$>>am_indx" + 1`
 268 done<<>>dnl>>)
 269 changequote([,]))])
 270
 271 dnl --- *@-AM_INIT_AUTOMAKE-@*
 272 dnl
 273 dnl Author:     Unknown
 274 dnl
 275 dnl Synopsis:   AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 276 dnl
 277 dnl Arguments:  PACKAGE = package name
 278 dnl             VERSION = version number
 279 dnl             NO-DEFINE = if set, don't define package and version number
 280 dnl
 281 dnl Use:        Do all the work for Automake.  This macro actually does too
 282 dnl             much -- some checks are only needed if your package does
 283 dnl             certain things.  But this isn't really a big deal.
 284
 285 # serial 1
 286
 287 AC_DEFUN(AM_INIT_AUTOMAKE,
 288 [AC_REQUIRE([AM_PROG_INSTALL])
 289 PACKAGE=[$1]
 290 AC_SUBST(PACKAGE)
 291 VERSION=[$2]
 292 AC_SUBST(VERSION)
 293 dnl test to see if srcdir already configured
 294 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
 295   AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 296 fi
 297 ifelse([$3],,
 298 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
 299 AC_DEFINE_UNQUOTED(VERSION, "$VERSION"))
 300 AM_SANITY_CHECK
 301 AC_ARG_PROGRAM
 302 dnl FIXME This is truly gross.
 303 missing_dir=`cd $ac_aux_dir && pwd`
 304 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
 305 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
 306 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
 307 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
 308 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
 309 AC_PROG_MAKE_SET])
 310
 311 dnl --- *@-AM_PROG_INSTALL-@* ---
 312 dnl
 313 dnl Author:     Franc,ois Pinard
 314 dnl
 315 dnl Synopsis:   AM_PROG_INSTALL
 316 dnl
 317 dnl Arguments:  ---
 318 dnl
 319 dnl Use:        Calls `AC_PROG_INSTALL' to find an installer.  Then it sets
 320 dnl             `INSTALL_SCRIPT' to a suitable value if necessary.
 321
 322 # serial 1
 323
 324 AC_DEFUN(AM_PROG_INSTALL,
 325 [AC_PROG_INSTALL
 326 test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL} -m 755'
 327 AC_SUBST(INSTALL_SCRIPT)dnl
 328 ])
 329
 330 dnl --- *@-AM_PROG_LEX-@* ---
 331 dnl
 332 dnl Author:     Alexandre Oliva
 333 dnl
 334 dnl Synopsis:   AM_PROG_LEX
 335 dnl
 336 dnl Arguments:  ---
 337 dnl
 338 dnl Use:        Replacement for AC_PROG_LEX and AC_DECL_YYTEXT
 339
 340 dnl AM_PROG_LEX
 341 dnl Look for flex, lex or missing, then run AC_PROG_LEX and AC_DECL_YYTEXT
 342 AC_DEFUN(AM_PROG_LEX,
 343 [missing_dir=ifelse([$1],,`cd $ac_aux_dir && pwd`,$1)
 344 AC_CHECK_PROGS(LEX, flex lex, "$missing_dir/missing flex")
 345 AC_PROG_LEX
 346 AC_DECL_YYTEXT])
 347
 348 dnl --- *@-AM_PROG_LIBTOOL-@* ---
 349 dnl
 350 dnl Author:     Unknown
 351 dnl
 352 dnl Synopsis:   AM_PROG_LIBTOOL
 353 dnl
 354 dnl Arguments:  ---
 355 dnl
 356 dnl Use:        Configures `libtool' for the target architecture.
 357
 358 ##
 359 ## Configure libtool for the target system.
 360 ##
 361 # serial 1 AM_PROG_LIBTOOL
 362 AC_DEFUN(AM_PROG_LIBTOOL,
 363 [AC_REQUIRE([AC_CANONICAL_HOST])
 364 AC_REQUIRE([AC_PROG_CC])
 365 AC_REQUIRE([AC_PROG_RANLIB])
 366
 367 # Always use our own libtool.
 368 LIBTOOL='$(top_builddir)/libtool'
 369 AC_SUBST(LIBTOOL)
 370
 371 dnl Allow the --disable-shared flag to stop us from building shared libs.
 372 AC_ARG_ENABLE(shared,
 373 [  --enable-shared         build shared libraries [default=yes]],
 374 test "$enableval" = no && libtool_shared=" --disable-shared",
 375 libtool_shared=)
 376
 377 libtool_flags="$libtool_shared"
 378 test "$silent" = yes && libtool_flags="$libtool_flags --silent"
 379 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
 380
 381 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
 382 CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" LD="$LD" RANLIB="$RANLIB" \
 383 $ac_aux_dir/ltconfig $libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
 384 || AC_MSG_ERROR([libtool configure failed])
 385 ])
 386
 387 dnl --- *@-AM_PATH_LISPDIR-@* ---
 388 dnl
 389 dnl Author:     Ulrich Drepper
 390 dnl
 391 dnl Synopsis:   AM_PATH_LISPDIR
 392 dnl
 393 dnl Arguments:  ---
 394 dnl
 395 dnl Use:        Sets the variable `lispdir' to point to a place to install
 396 dnl             Emacs lisp files.
 397
 398 ## ------------------------
 399 ## Emacs LISP file handling
 400 ## From Ulrich Drepper
 401 ## ------------------------
 402
 403 # serial 1
 404
 405 AC_DEFUN(AM_PATH_LISPDIR,
 406  [# If set to t, that means we are running in a shell under Emacs.
 407   # If you have an Emacs named "t", then use the full path.
 408   test "$EMACS" = t && EMACS=
 409   AC_PATH_PROG(EMACS, emacs xemacs, no)
 410   if test $EMACS != "no"; then
 411     AC_MSG_CHECKING([where .elc files should go])
 412     dnl Set default value
 413     lispdir="\$(datadir)/emacs/site-lisp"
 414     if test "x$prefix" = "xNONE"; then
 415       if test -d $ac_default_prefix/share/emacs/site-lisp; then
 416         lispdir="\$(prefix)/share/emacs/site-lisp"
 417       else
 418         if test -d $ac_default_prefix/lib/emacs/site-lisp; then
 419           lispdir="\$(prefix)/lib/emacs/site-lisp"
 420         fi
 421       fi
 422     else
 423       if test -d $prefix/share/emacs/site-lisp; then
 424         lispdir="\$(prefix)/share/emacs/site-lisp"
 425       else
 426         if test -d $prefix/lib/emacs/site-lisp; then
 427           lispdir="\$(prefix)/lib/emacs/site-lisp"
 428         fi
 429       fi
 430     fi
 431     AC_MSG_RESULT($lispdir)
 432   fi
 433   AC_SUBST(lispdir)])
 434
 435 dnl --- *@-AM_MAINTAINTER_MODE-@* ---
 436 dnl
 437 dnl Author:     Jim Meyering
 438 dnl
 439 dnl Synopsis:   jm_MAINTAINER_MODE
 440 dnl
 441 dnl Arguments:  ---
 442 dnl
 443 dnl Use:        Provides an option `--enable-maintainer-mode' which turns
 444 dnl             on rules which might normally be commented out.  The
 445 dnl             substitution variable `MAINT' is set to be a comment when
 446 dnl             this option is disabled, which it is by default.
 447
 448 # serial 1
 449
 450 AC_DEFUN(AM_MAINTAINER_MODE,
 451 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 452   dnl maintainer-mode is disabled by default
 453   AC_ARG_ENABLE(maintainer-mode,
 454 [  --enable-maintainer-mode enable make rules and dependencies not useful
 455                           (and sometimes confusing) to the casual installer],
 456       USE_MAINTAINER_MODE=$enableval,
 457       USE_MAINTAINER_MODE=no)
 458   AC_MSG_RESULT($USE_MAINTAINER_MODE)
 459   if test $USE_MAINTAINER_MODE = yes; then
 460     MAINT=
 461   else
 462     MAINT='#M#'
 463   fi
 464   AC_SUBST(MAINT)dnl
 465 ]
 466 )
 467
 468 dnl --- *@-AM_MISSING_PROG-@* ---
 469 dnl
 470 dnl Author:     Unknown
 471 dnl
 472 dnl Synopsis:   AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
 473 dnl
 474 dnl Arguments:  NAME = variable to set to the file's location
 475 dnl             PROGRAM = name of program to find
 476 dnl             DIRECTORY = directory to look in
 477 dnl
 478 dnl Use:        Fakes existence of a useful GNU maintainer tool.
 479
 480 AC_DEFUN(AM_MISSING_PROG,
 481 [AC_MSG_CHECKING(for working $2)
 482 # Run test in a subshell; some versions of sh will print an error if
 483 # an executable is not found, even if stderr is redirected.
 484 # Redirect stdin to placate older versions of autoconf.  Sigh.
 485 if ($2 --version) < /dev/null > /dev/null 2>&1; then
 486    $1=$2
 487    AC_MSG_RESULT(found)
 488 else
 489    $1="$3/missing $2"
 490    AC_MSG_RESULT(missing)
 491 fi
 492 AC_SUBST($1)])
 493
 494 dnl --- *@-AM_FUNC_MKTIME-@* ---
 495 dnl
 496 dnl Author:     Jim Meyering
 497 dnl
 498 dnl Synopsis:   AM_FUNC_MKTIME
 499 dnl
 500 dnl Arguments:  ---
 501 dnl
 502 dnl Use:        Checks for a working mktime function.
 503
 504 AC_DEFUN(AM_FUNC_MKTIME,
 505 [AC_REQUIRE([AC_HEADER_TIME])dnl
 506  AC_CHECK_HEADERS(sys/time.h)
 507  AC_CACHE_CHECK([for working mktime], am_cv_func_working_mktime,
 508   [AC_TRY_RUN(
 509 changequote(<<, >>)dnl
 510 <</* Test program from Paul Eggert (eggert@twinsun.com)
 511    and Tony Leneis (tony@plaza.ds.adp.com).  */
 512 #if TIME_WITH_SYS_TIME
 513 # include <sys/time.h>
 514 # include <time.h>
 515 #else
 516 # if HAVE_SYS_TIME_H
 517 #  include <sys/time.h>
 518 # else
 519 #  include <time.h>
 520 # endif
 521 #endif
 522
 523 static time_t time_t_max;
 524
 525 /* Values we'll use to set the TZ environment variable.  */
 526 static const char *const tz_strings[] = {
 527   NULL, "GMT0", "JST-9", "EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00"
 528 };
 529 #define N_STRINGS (sizeof (tz_strings) / sizeof (tz_strings[0]))
 530
 531 static void
 532 mktime_test (now)
 533      time_t now;
 534 {
 535   if (mktime (localtime (&now)) != now)
 536     exit (1);
 537   now = time_t_max - now;
 538   if (mktime (localtime (&now)) != now)
 539     exit (1);
 540 }
 541
 542 int
 543 main ()
 544 {
 545   time_t t, delta;
 546   int i;
 547
 548   for (time_t_max = 1; 0 < time_t_max; time_t_max *= 2)
 549     continue;
 550   time_t_max--;
 551   delta = time_t_max / 997; /* a suitable prime number */
 552   for (i = 0; i < N_STRINGS; i++)
 553     {
 554       if (tz_strings[i])
 555         putenv (tz_strings[i]);
 556
 557       for (t = 0; t <= time_t_max - delta; t += delta)
 558         mktime_test (t);
 559       mktime_test ((time_t) 60 * 60);
 560       mktime_test ((time_t) 60 * 60 * 24);
 561     }
 562   exit (0);
 563 }
 564               >>,
 565 changequote([, ])dnl
 566              am_cv_func_working_mktime=yes, am_cv_func_working_mktime=no,
 567              dnl When crosscompiling, assume mktime is missing or broken.
 568              am_cv_func_working_mktime=no)
 569   ])
 570   if test $am_cv_func_working_mktime = no; then
 571     LIBOBJS="$LIBOBJS mktime.o"
 572   fi
 573 ])
 574
 575 dnl --- *@-AM_FUNC_OBSTACK-@* ---
 576 dnl
 577 dnl Author:     Jim Meyering
 578 dnl
 579 dnl Synopsis:   AM_FUNC_OBSTACK
 580 dnl
 581 dnl Arguments:  ---
 582 dnl
 583 dnl Use:        Checks for GNU obstacks.
 584
 585 AC_DEFUN(AM_FUNC_OBSTACK,
 586 [AC_CACHE_CHECK([for obstacks], am_cv_func_obstack,
 587  [AC_TRY_LINK([#include "obstack.h"],
 588               [struct obstack *mem;obstack_free(mem,(char *) 0)],
 589               am_cv_func_obstack=yes,
 590               am_cv_func_obstack=no)])
 591  if test $am_cv_func_obstack = yes; then
 592    AC_DEFINE(HAVE_OBSTACK)
 593  else
 594    LIBOBJS="$LIBOBJS obstack.o"
 595  fi
 596 ])
 597
 598 dnl --- *@-AC_C_PROTOTYPES-@* ---
 599 dnl
 600 dnl Author:     Franc,ois Pinard
 601 dnl
 602 dnl Synopsis:   AC_C_PROTOTYPES
 603 dnl
 604 dnl Arguments:  ---
 605 dnl
 606 dnl Use:        If the C compiler understands ANSI C, define `PROTOTYPES',
 607 dnl             and clear the `U' and `ANSI2KNR' variables.  Otherwise,
 608 dnl             set `U' to be `_' and `ANSI2KNR' to be `./ansi2knr'.
 609
 610 # serial 1
 611
 612 AC_DEFUN(fp_C_PROTOTYPES,
 613 [AC_REQUIRE([fp_PROG_CC_STDC])
 614 AC_MSG_CHECKING([for function prototypes])
 615 if test "$ac_cv_prog_cc_stdc" != no; then
 616   AC_MSG_RESULT(yes)
 617   AC_DEFINE(PROTOTYPES)
 618   U= ANSI2KNR=
 619 else
 620   AC_MSG_RESULT(no)
 621   U=_ ANSI2KNR=./ansi2knr
 622 fi
 623 AC_SUBST(U)dnl
 624 AC_SUBST(ANSI2KNR)dnl
 625 ])
 626
 627 dnl --- *@-AM_PATH_GTK-@* ---
 628 dnl
 629 dnl Author:     Owen Taylor
 630 dnl
 631 dnl Synopsis:   AM_PATH_GTK(MIN-VERSION, [ACTION-IF-FOUND], [ACTION-IF-NOT])
 632 dnl
 633 dnl Arguments:  MIN-VERSION = minimum version of GTK required
 634 dnl             ACTION-IF-FOUND = executed if GTK found OK
 635 dnl             ACTION-IF-NOT-FOUND = what to do if GTK not available
 636 dnl
 637 dnl Use:        Sets up compilation environment suitably for GTK programming.
 638
 639 # Configure paths for GTK+
 640 # Owen Taylor     97-11-3
 641
 642 dnl AM_PATH_GTK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 643 dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS
 644 dnl
 645 AC_DEFUN(AM_PATH_GTK,
 646 [dnl
 647 dnl Get the cflags and libraries from the gtk-config script
 648 dnl
 649 AC_ARG_WITH(gtk-prefix,[  --with-gtk-prefix=PFX   Prefix where GTK is installed (optional)],
 650             gtk_config_prefix="$withval", gtk_config_prefix="")
 651 AC_ARG_WITH(gtk-exec-prefix,[  --with-gtk-exec-prefix=PFX Exec prefix where GTK is installed (optional)],
 652             gtk_config_exec_prefix="$withval", gtk_config_exec_prefix="")
 653 AC_ARG_ENABLE(gtktest, [  --disable-gtktest       Do not try to compile and run a test GTK program],
 654                     , enable_gtktest=yes)
 655
 656   if test x$gtk_config_exec_prefix != x ; then
 657      gtk_config_args="$gtk_config_args --exec-prefix=$gtk_config_exec_prefix"
 658      if test x${GTK_CONFIG+set} != xset ; then
 659         GTK_CONFIG=$gtk_config_exec_prefix/bin/gtk-config
 660      fi
 661   fi
 662   if test x$gtk_config_prefix != x ; then
 663      gtk_config_args="$gtk_config_args --prefix=$gtk_config_prefix"
 664      if test x${GTK_CONFIG+set} != xset ; then
 665         GTK_CONFIG=$gtk_config_prefix/bin/gtk-config
 666      fi
 667   fi
 668
 669   AC_PATH_PROG(GTK_CONFIG, gtk-config, no)
 670   min_gtk_version=ifelse([$1], ,0.99.7,$1)
 671   AC_MSG_CHECKING(for GTK - version >= $min_gtk_version)
 672   no_gtk=""
 673   if test "$GTK_CONFIG" = "no" ; then
 674     no_gtk=yes
 675   else
 676     GTK_CFLAGS=`$GTK_CONFIG $gtk_config_args --cflags`
 677     GTK_LIBS=`$GTK_CONFIG $gtk_config_args --libs`
 678     gtk_config_major_version=`$GTK_CONFIG $gtk_config_args --version | \
 679            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
 680     gtk_config_minor_version=`$GTK_CONFIG $gtk_config_args --version | \
 681            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
 682     gtk_config_micro_version=`$GTK_CONFIG $gtk_config_args --version | \
 683            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
 684     if test "x$enable_gtktest" = "xyes" ; then
 685       ac_save_CFLAGS="$CFLAGS"
 686       ac_save_LIBS="$LIBS"
 687       CFLAGS="$CFLAGS $GTK_CFLAGS"
 688       LIBS="$LIBS $GTK_LIBS"
 689 dnl
 690 dnl Now check if the installed GTK is sufficiently new. (Also sanity
 691 dnl checks the results of gtk-config to some extent
 692 dnl
 693       rm -f conf.gtktest
 694       AC_TRY_RUN([
 695 #include <gtk/gtk.h>
 696 #include <stdio.h>
 697
 698 int
 699 main ()
 700 {
 701   int major, minor, micro;
 702   char *tmp_version;
 703
 704   system ("touch conf.gtktest");
 705
 706   /* HP/UX 9 (%@#!) writes to sscanf strings */
 707   tmp_version = g_strdup("$min_gtk_version");
 708   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
 709      printf("%s, bad version string\n", "$min_gtk_version");
 710      exit(1);
 711    }
 712
 713   if ((gtk_major_version != $gtk_config_major_version) ||
 714       (gtk_minor_version != $gtk_config_minor_version) ||
 715       (gtk_micro_version != $gtk_config_micro_version))
 716     {
 717       printf("\n*** 'gtk-config --version' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n",
 718              $gtk_config_major_version, $gtk_config_minor_version, $gtk_config_micro_version,
 719              gtk_major_version, gtk_minor_version, gtk_micro_version);
 720       printf ("*** was found! If gtk-config was correct, then it is best\n");
 721       printf ("*** to remove the old version of GTK+. You may also be able to fix the error\n");
 722       printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
 723       printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
 724       printf("*** required on your system.\n");
 725       printf("*** If gtk-config was wrong, set the environment variable GTK_CONFIG\n");
 726       printf("*** to point to the correct copy of gtk-config, and remove the file config.cache\n");
 727       printf("*** before re-running configure\n");
 728     }
 729   else
 730     {
 731       if ((gtk_major_version > major) ||
 732         ((gtk_major_version == major) && (gtk_minor_version > minor)) ||
 733         ((gtk_major_version == major) && (gtk_minor_version == minor) && (gtk_micro_version >= micro)))
 734       {
 735         return 0;
 736        }
 737      else
 738       {
 739         printf("\n*** An old version of GTK+ (%d.%d.%d) was found.\n",
 740                gtk_major_version, gtk_minor_version, gtk_micro_version);
 741         printf("*** You need a version of GTK+ newer than %d.%d.%d. The latest version of\n",
 742                major, minor, micro);
 743         printf("*** GTK+ is always available from ftp://ftp.gtk.org.\n");
 744         printf("***\n");
 745         printf("*** If you have already installed a sufficiently new version, this error\n");
 746         printf("*** probably means that the wrong copy of the gtk-config shell script is\n");
 747         printf("*** being found. The easiest way to fix this is to remove the old version\n");
 748         printf("*** of GTK+, but you can also set the GTK_CONFIG environment to point to the\n");
 749         printf("*** correct copy of gtk-config. (In this case, you will have to\n");
 750         printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
 751         printf("*** so that the correct libraries are found at run-time))\n");
 752       }
 753     }
 754   return 1;
 755 }
 756 ],, no_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
 757        CFLAGS="$ac_save_CFLAGS"
 758        LIBS="$ac_save_LIBS"
 759      fi
 760   fi
 761   if test "x$no_gtk" = x ; then
 762      AC_MSG_RESULT(yes)
 763      ifelse([$2], , :, [$2])
 764   else
 765      AC_MSG_RESULT(no)
 766      if test "$GTK_CONFIG" = "no" ; then
 767        echo "*** The gtk-config script installed by GTK could not be found"
 768        echo "*** If GTK was installed in PREFIX, make sure PREFIX/bin is in"
 769        echo "*** your path, or set the GTK_CONFIG environment variable to the"
 770        echo "*** full path to gtk-config."
 771      else
 772        if test -f conf.gtktest ; then
 773         :
 774        else
 775           echo "*** Could not run GTK test program, checking why..."
 776           CFLAGS="$CFLAGS $GTK_CFLAGS"
 777           LIBS="$LIBS $GTK_LIBS"
 778           AC_TRY_LINK([
 779 #include <gtk/gtk.h>
 780 #include <stdio.h>
 781 ],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
 782         [ echo "*** The test program compiled, but did not run. This usually means"
 783           echo "*** that the run-time linker is not finding GTK or finding the wrong"
 784           echo "*** version of GTK. If it is not finding GTK, you'll need to set your"
 785           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
 786           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
 787           echo "*** is required on your system"
 788           echo "***"
 789           echo "*** If you have an old version installed, it is best to remove it, although"
 790           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
 791           echo "***"
 792           echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
 793           echo "*** came with the system with the command"
 794           echo "***"
 795           echo "***    rpm --erase --nodeps gtk gtk-devel" ],
 796         [ echo "*** The test program failed to compile or link. See the file config.log for the"
 797           echo "*** exact error that occured. This usually means GTK was incorrectly installed"
 798           echo "*** or that you have moved GTK since it was installed. In the latter case, you"
 799           echo "*** may want to edit the gtk-config script: $GTK_CONFIG" ])
 800           CFLAGS="$ac_save_CFLAGS"
 801           LIBS="$ac_save_LIBS"
 802        fi
 803      fi
 804      GTK_CFLAGS=""
 805      GTK_LIBS=""
 806      ifelse([$3], , :, [$3])
 807   fi
 808   AC_SUBST(GTK_CFLAGS)
 809   AC_SUBST(GTK_LIBS)
 810   rm -f conf.gtktest
 811 ])
 812
 813 dnl --- *@-AC_TYPE_PTRDIFF_T-@* ---
 814 dnl
 815 dnl Author:     Ulrich Drepper
 816 dnl
 817 dnl Synopsis:   AC_TYPE_PTRDIFF_T
 818 dnl
 819 dnl Arguments:  ---
 820 dnl
 821 dnl Use:        Sets HAVE_PTRDIFF_T if the type exists.
 822
 823 AC_DEFUN(AM_TYPE_PTRDIFF_T,
 824   [AC_CACHE_CHECK([for ptrdiff_t], am_cv_type_ptrdiff_t,
 825      [AC_TRY_COMPILE([#include <stddef.h>], [ptrdiff_t p],
 826                      am_cv_type_ptrdiff_t=yes, am_cv_type_ptrdiff_t=no)])
 827    if test $am_cv_type_ptrdiff_t = yes; then
 828      AC_DEFINE(HAVE_PTRDIFF_T)
 829    fi
 830 ])
 831
 832 dnl --- *@-AM_WITH_REGEX-@* ---
 833 dnl
 834 dnl Author:     Unknown (possibly Franc,ois Pinard)
 835 dnl
 836 dnl Synopsis:   AM_WITH_REGEX
 837 dnl
 838 dnl Arguments:  ---
 839 dnl
 840 dnl Use:
 841 dnl             The idea is to distribute rx.[hc] and regex.[hc] together,
 842 dnl             for a while.  The WITH_REGEX symbol (which should also be
 843 dnl             documented in acconfig.h) is used to decide which of regex.h
 844 dnl             or rx.h should be included in the application.  If
 845 dnl             `./configure --with-regex' is given (the default), the
 846 dnl             package will use gawk's regex.  If `./configure
 847 dnl             --without-regex', a check is made to see if rx is already
 848 dnl             installed, as with newer Linux'es.  If not found, the package
 849 dnl             will use the rx from the distribution.  If found, the package
 850 dnl             will use the system's rx which, on Linux at least, will
 851 dnl             result in a smaller executable file.
 852
 853 AC_DEFUN(AM_WITH_REGEX,
 854 [AC_MSG_CHECKING(which of GNU rx or gawk's regex is wanted)
 855 AC_ARG_WITH(regex,
 856 [  --without-regex         use GNU rx in lieu of gawk's regex for matching],
 857 [test "$withval" = yes && am_with_regex=1],
 858 [am_with_regex=1])
 859 if test -n "$am_with_regex"; then
 860   AC_MSG_RESULT(regex)
 861   AC_DEFINE(WITH_REGEX)
 862   AC_CACHE_CHECK([for GNU regex in libc], am_cv_gnu_regex,
 863     AC_TRY_LINK([], [extern int re_max_failures; re_max_failures = 1],
 864                 am_cv_gnu_regex=yes, am_cv_gnu_regex=no))
 865   if test $am_cv_gnu_regex = no; then
 866     LIBOBJS="$LIBOBJS regex.o"
 867   fi
 868 else
 869   AC_MSG_RESULT(rx)
 870   AC_CHECK_FUNC(re_rx_search, , [LIBOBJS="$LIBOBJS rx.o"])
 871 fi
 872 AC_SUBST(LIBOBJS)dnl
 873 ])
 874
 875 dnl --- *@-AM_SANITY_CHECK-@*
 876 dnl
 877 dnl Author:     Unknown
 878 dnl
 879 dnl Synopsis:   AM_SANITY_CHECK
 880 dnl
 881 dnl Arguments:  ---
 882 dnl
 883 dnl Use:        Check for build environment sanity.
 884
 885 AC_DEFUN(AM_SANITY_CHECK,
 886 [AC_MSG_CHECKING([whether build environment is sane])
 887 # Just in case
 888 sleep 1
 889 echo timestamp > conftestfile
 890 # Do `set' in a subshell so we don't clobber the current shell's
 891 # arguments.  Must try -L first in case configure is actually a
 892 # symlink; some systems play weird games with the mod time of symlinks
 893 # (eg FreeBSD returns the mod time of the symlink's containing
 894 # directory).
 895 if (
 896    set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
 897    if test "$@" = "X"; then
 898       # -L didn't work.
 899       set X `ls -t $srcdir/configure conftestfile`
 900    fi
 901    test "[$]2" = conftestfile
 902    )
 903 then
 904    # Ok.
 905    :
 906 else
 907    AC_MSG_ERROR([newly created file is older than distributed files!
 908 Check your system clock])
 909 fi
 910 rm -f conftest*
 911 AC_MSG_RESULT(yes)])
 912
 913 dnl --- *@-AM_FUNC_STRDOD-@* ---
 914 dnl
 915 dnl Author:     Jim Meyering
 916 dnl
 917 dnl Synopsis:   AM_FUNC_STRTOD
 918 dnl
 919 dnl Arguments:  ---
 920 dnl
 921 dnl Use:        Checks for a working strtod function.
 922
 923 ## Copyright (C) 1996 Free Software Foundation, Inc.
 924
 925 ## This program is free software; you can redistribute it and/or modify
 926 ## it under the terms of the GNU General Public License as published by
 927 ## the Free Software Foundation; either version 2, or (at your option)
 928 ## any later version.
 929
 930 ## This program is distributed in the hope that it will be useful,
 931 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
 932 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 933 ## GNU General Public License for more details.
 934
 935 ## You should have received a copy of the GNU General Public License
 936 ## along with this program; if not, write to the Free Software
 937 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 938 ## 02111-1307, USA.
 939
 940 ## From Jim Meyering.
 941
 942 ## serial 1
 943
 944 ## @defmac AC_FUNC_STRTOD
 945 ## @maindex FUNC_STRTOD
 946 ## @ovindex LIBOBJS
 947 ## If the @code{strtod} function is not available, or does not work
 948 ## correctly (like the one on SunOS 5.4), add @samp{strtod.o} to output
 949 ## variable @code{LIBOBJS}.
 950 ## @end defmac
 951
 952 AC_DEFUN(AM_FUNC_STRTOD,
 953 [AC_CACHE_CHECK(for working strtod, am_cv_func_strtod,
 954 [AC_TRY_RUN([
 955 double strtod ();
 956 int
 957 main()
 958 {
 959   {
 960     /* Some versions of Linux strtod mis-parse strings with leading '+'.  */
 961     char *string = " +69";
 962     char *term;
 963     double value;
 964     value = strtod (string, &term);
 965     if (value != 69 || term != (string + 4))
 966       exit (1);
 967   }
 968
 969   {
 970     /* Under Solaris 2.4, strtod returns the wrong value for the
 971        terminating character under some conditions.  */
 972
 973 ## @defmac AC_FUNC_STRTOD
 974 ## @maindex FUNC_STRTOD
 975 ## @ovindex LIBOBJS
 976 ## If the @code{strtod} function is not available, or does not work
 977 ## correctly (like the one on SunOS 5.4), add @samp{strtod.o} to output
 978 ## variable @code{LIBOBJS}.
 979 ## @end defmac
 980
 981 AC_DEFUN(AM_FUNC_STRTOD,
 982 [AC_CACHE_CHECK(for working strtod, am_cv_func_strtod,
 983 [AC_TRY_RUN([
 984 double strtod ();
 985 int
 986 main()
 987 {
 988   {
 989     /* Some versions of Linux strtod mis-parse strings with leading '+'.  */
 990     char *string = " +69";
 991     char *term;
 992     double value;
 993     value = strtod (string, &term);
 994     if (value != 69 || term != (string + 4))
 995       exit (1);
 996   }
 997
 998   {
 999     /* Under Solaris 2.4, strtod returns the wrong value for the
1000        terminating character under some conditions.  */
1001     char *string = "NaN";
1002     char *term;
1003     strtod (string, &term);
1004     if (term != string && *(term - 1) == 0)
1005       exit (1);
1006   }
1007   exit (0);
1008 }
1009 ], am_cv_func_strtod=yes, am_cv_func_strtod=no, am_cv_func_strtod=no)])
1010 test $am_cv_func_strtod = no && LIBOBJS="$LIBOBJS strtod.o"
1011 AC_SUBST(LIBOBJS)dnl
1012 am_cv_func_strtod_needs_libm=no
1013 if test $am_cv_func_strtod = no; then
1014   AC_CHECK_FUNCS(pow)
1015   if test $ac_cv_func_pow = no; then
1016     AC_CHECK_LIB(m, pow, [am_cv_func_strtod_needs_libm=yes],
1017                  [AC_MSG_WARN(can't find library containing definition of pow)])
1018   fi
1019 fi
1020 ])
1021
1022 dnl --- *@-AM_SYS_POSIX_TERMIOS-@* ---
1023 dnl
1024 dnl Author:     Jim Meyering
1025 dnl
1026 dnl Synopsis:   AM_SYS_POSIX_TERMIOS
1027 dnl
1028 dnl Arguments:  ---
1029 dnl
1030 dnl Use:        Checks for a POSIX termios.h.
1031
1032 AC_DEFUN(AM_SYS_POSIX_TERMIOS,
1033 [AC_CACHE_CHECK([POSIX termios], am_cv_sys_posix_termios,
1034   [AC_TRY_LINK([#include <sys/types.h>
1035 #include <unistd.h>
1036 #include <termios.h>],
1037   [/* SunOS 4.0.3 has termios.h but not the library calls.  */
1038    tcgetattr(0, 0);],
1039   am_cv_sys_posix_termios=yes,
1040   am_cv_sys_posix_termios=no)])
1041 ])
1042
1043 dnl----- Macros by Mark Wooding ------------------------------ *@--IGNORE--@*
1044
1045 dnl --- *@-mdw_REQUIRE-@* ---
1046 dnl
1047 dnl Author:     Mark Wooding
1048 dnl
1049 dnl Synopsis:   mdw_REQUIRE(MACRO, ARGS...)
1050 dnl
1051 dnl Arguments:  MACRO = name of a macro which should have been called
1052 dnl             ARGS = arguments to pass
1053 dnl
1054 dnl Use:        Like `AC_REQUIRE', only it handles arguments.
1055
1056 AC_DEFUN(mdw_REQUIRE,
1057 [ifdef([AC_PROVIDED_$1], ,
1058 [AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))dnl
1059 indir($@)
1060 AC_DIVERT_POP()dnl
1061 ])])
1062
1063 dnl --- *@-mdw_CHECK_MANYLIBS-@* ---
1064 dnl
1065 dnl Author:     Mark Wooding
1066 dnl
1067 dnl Synopsis:   mdw_CHECK_MANYLIBS(FUNC, LIBS, [IF-FOUND], [IF-NOT-FOUND])
1068 dnl
1069 dnl Arguments:  FUNC = a function to try to find
1070 dnl             LIBS = a whitespace-separated list of libraries to search
1071 dnl             IF-FOUND = what to do when the function is found
1072 dnl             IF-NOT-FOUND = what to do when the function isn't found
1073 dnl
1074 dnl Use:        Searches for a library which defines FUNC.  It first tries
1075 dnl             without any libraries; then it tries each library specified
1076 dnl             in LIBS in turn.  If it finds a match, it adds the
1077 dnl             appropriate library to `LIBS'.
1078 dnl
1079 dnl             This is particularly handy under DIREIX: if you link with
1080 dnl             `-lnsl' then you get non-NIS-aware versions of getpwnam and
1081 dnl             so on, which is clearly a Bad Thing.
1082
1083 AC_DEFUN(mdw_CHECK_MANYLIBS,
1084 [AC_CACHE_CHECK([for library containing $1], [mdw_cv_lib_$1],
1085 [mdw_save_LIBS="$LIBS"
1086 mdw_cv_lib_$1="no"
1087 AC_TRY_LINK(,[$1()], [mdw_cv_lib_$1="none required"])
1088 test "$mdw_cv_lib_$1" = "no" && for i in $2; do
1089 LIBS="-l$i $mdw_save_LIBS"
1090 AC_TRY_LINK(,[$1()],
1091 [mdw_cv_lib_$1="-l$i"
1092 break])
1093 done
1094 LIBS="$mdw_save_LIBS"])
1095 if test "$mdw_cv_lib_$1" != "no"; then
1096   test "$mdw_cv_lib_$1" = "none required" || LIBS="$mdw_cv_lib_$1 $LIBS"
1097   $3
1098 else :
1099   $4
1100 fi])
1101
1102 dnl --- *@-mdw__PERL_VERSION-@* ---
1103 dnl
1104 dnl AC_DEFUN relies on `[', `]' being quotes, so I have to drop down a level.
1105
1106 changequote(<<, >>)
1107 define(mdw__PERL_VERSION, <<$1 -e 'exit ($] < $2);' >&5 2>&5>>)
1108 changequote([, ])
1109
1110 dnl --- *@-mdw_PROG_PERL-@* ---
1111 dnl
1112 dnl Author:     Mark Wooding
1113 dnl
1114 dnl Synopsis:   mdw_PROG_PERL(VERSION, [IF-FOUND], [IF-NOT-FOUND])
1115 dnl
1116 dnl Arguments:  VERSION = version number of Perl required
1117 dnl             IF-FOUND = what to do if it's found
1118 dnl             IF-NOT-FOUND = what to do if it isn't
1119 dnl
1120 dnl Use:        Attempts to find a working version of Perl with a late
1121 dnl             enough version number.  It supplies an option `--with-perl'
1122 dnl             to allow the user to provide a Perl interpreter.  If one
1123 dnl             isn't provided explicitly, it searches for `perl' and `perl5'
1124 dnl             in the current PATH, asking them whether they have a late
1125 dnl             enough version number.  The path of the working Perl is
1126 dnl             put into the `PERL' environment variable; `AC_SUBST' is used
1127 dnl             to substitute its value into Perl scripts.  If there is no
1128 dnl             Perl to be found, the value of `PERL' is set to be `none'.
1129
1130 AC_DEFUN(mdw_PROG_PERL,
1131 [AC_ARG_WITH([perl],
1132 [  --with-perl=PERL       specify path to Perl version $1 or newer],
1133 [PERL="$withval"],
1134 if test -z "$PERL"; then
1135 [AC_CACHE_CHECK([for Perl version $1 or later], mdw_cv_prog_perl,
1136 [mdw_cv_prog_perl="none"
1137 for p in `echo "$PATH:/usr/local/bin" | tr ":" " "`; do
1138   case $p in /*) ;; *) p=`pwd`/$p ;; esac
1139   if mdw__PERL_VERSION(["$p/perl"], $1); then
1140     mdw_cv_prog_perl="$p/perl"
1141     break
1142   fi
1143   if mdw__PERL_VERSION(["$p/perl5"], $1); then
1144     mdw_cv_prog_perl="$p/perl5"
1145     break
1146   fi
1147 done])
1148 PERL="$mdw_cv_prog_perl"])
1149 fi
1150
1151 AC_SUBST(PERL)dnl
1152 if test "$PERL" = "none"; then :
1153   $3
1154 else :
1155   $2
1156 fi])
1157
1158 dnl --- *@-mdw_CHECK_PERL-@* ---
1159 dnl
1160 dnl Author:     Mark Wooding
1161 dnl
1162 dnl Synopsis:   mdw_CHECK_PERL(VERSION)
1163 dnl
1164 dnl Arguments:  VERSION = version number of Perl required
1165 dnl
1166 dnl Use:        Verifies that the Perl interpreter in the `PERL' shell
1167 dnl             variable actually works and is of the right version.  If it's
1168 dnl             not, an error is raised and configuration is aborted.
1169
1170 AC_DEFUN(mdw_CHECK_PERL,
1171 [mdw_REQUIRE([mdw_PROG_PERL], [$1])
1172 AC_MSG_CHECKING([whether Perl ($PERL) works])
1173 if test "$PERL" != "none" && mdw__PERL_VERSION("$PERL", $1); then
1174   AC_MSG_RESULT([yes])
1175 else
1176   AC_MSG_RESULT([no])
1177   AC_MSG_ERROR([Perl version $1 or newer not found.
1178 If you have a recent enough Perl, and I just failed to find it, try using
1179 the --with-perl=PERL option to give me an explicit pathname.])
1180 fi])
1181
1182 dnl --- *@-mdw_PERLLIB_CHECK-@* ---
1183 dnl
1184 dnl Author:     Mark Wooding
1185 dnl
1186 dnl Synopsis:   mdw_PERLLIB_CHECK(LIBRARY)
1187 dnl
1188 dnl Arguments:  LIBRARY = name of a Perl library to check for
1189 dnl
1190 dnl Use:        Ensures that a Perl script can `use LIBRARY;'.  If it can,
1191 dnl             all's well and good; if it can't, `LIBRARY.pm' is added to
1192 dnl             the variable `NEEDED_PERLLIBS' and a line which adds
1193 dnl             `pkgdatadir' to Perl's `@INC' array is placed in the
1194 dnl             variable `INC_PERLLIBS'; `AC_SUBST' is called for both of
1195 dnl             these variables.  It's expected that `NEEDED_PERLLIBS' will
1196 dnl             be used in the `Makefile.in' to decide which versions from
1197 dnl             the distribution need installing.
1198 dnl
1199 dnl             This macro isn't terribly useful in the general case.  It
1200 dnl             Also implicitly assumes that `$PERL' is Perl 5 or later.
1201
1202 AC_DEFUN(mdw__PERLLIB_INIT,
1203 [AC_SUBST(INC_PERLLIBS)dnl
1204 AC_SUBST(NEEDED_PERLLIBS)dnl
1205 ])
1206
1207 AC_DEFUN(mdw_PERLLIB_CHECK,
1208 [AC_REQUIRE([mdw__PERLLIB_INIT])
1209 mdw_REQUIRE([mdw_CHECK_PERL], 5)
1210 AC_CACHE_CHECK([for Perl library $1], mdw_cv_perllib_$1,
1211 [if $PERL -e 'use $1;' >&5 2>&5; then
1212   mdw_cv_perllib_$1="yes"
1213 else
1214   mdw_cv_perllib_$1="no"
1215 fi])
1216
1217 if test "$mdw_cv_perllib_$1" = "no"; then
1218   NEEDED_PERLLIBS="$NEEDED_PERLLIBS $1.pm"
1219
1220   # --- Deal with autoconf lossage ---
1221   #
1222   # It doesn't want to define `prefix' until rather later on, so I have
1223   # to bodge it here.
1224
1225   if test -z "$INC_PERLLIBS"; then
1226     mdw_old_prefix="$prefix"
1227     test "$prefix" = "NONE" && prefix="$ac_default_prefix";
1228     INC_PERLLIBS="BEGIN { push @INC, \"`eval echo $datadir/$PACKAGE`\"; }"
1229     prefix="$mdw_old_prefix";
1230   fi
1231 fi])
1232
1233 dnl --- *@-mdw_GCC_FLAGS-@* ---
1234 dnl
1235 dnl Author:     Mark Wooding
1236 dnl
1237 dnl Synopsis:   mdw_GCC_FLAGS([FLAGS], [CFLAGS], [C++FLAGS])
1238 dnl
1239 dnl Arguments:  FLAGS = GCC compiler flags to add (default is
1240 dnl                     `-pedantic -Wall')
1241 dnl             CFLAGS = GCC C compiler flags to add (default is empty)
1242 dnl             C++FLAGS = GCC C++ compiler flags to add (default is
1243 dnl                     `-fhandle-exceptions').
1244 dnl
1245 dnl Use:        If the C compiler is GCC, add the compiler flags.
1246
1247 AC_DEFUN(mdw_GCC_FLAGS,
1248 [if test "$GCC" = "yes"; then
1249   CFLAGS="$CFLAGS ifelse([$1], [], [-pedantic -Wall], [$1])"
1250   CFLAGS="$CFLAGS ifelse([$2], [], [], [$2])"
1251 fi
1252 if test "$GXX" = "yes"; then
1253   CXXFLAGS="$CXXFLAGS ifelse([$1], [], [-pedantic -Wall], [$1])"
1254   CXXFLAGS="$CXXFLAGS ifelse([$3], [], [-fhandle-exceptions], [$3])"
1255 fi])
1256
1257 dnl --- *@-mdw_OPT_NDEBUG-@* ---
1258 dnl
1259 dnl Author:     Mark Wooding
1260 dnl
1261 dnl Synopsis:   mdw_OPT_NDEBUG
1262 dnl
1263 dnl Arguments:  ---
1264 dnl
1265 dnl Use:        Turns off the `NDEBUG' flag if the user wants to do
1266 dnl             debugging.
1267
1268 AC_DEFUN(mdw_OPT_NDEBUG,
1269 [AC_ARG_ENABLE(debugging,
1270 [  --enable-debugging      spews vast swathes of useless information],
1271 [if test "$enableval" = "no"; then
1272   AC_DEFINE(NDEBUG, 1)
1273 fi],
1274 [AC_DEFINE(NDEBUG, 1)])])
1275
1276 dnl --- *@-mdw_OPT_EFENCE-@* ---
1277 dnl
1278 dnl Author:     Mark Wooding
1279 dnl
1280 dnl Synopsis:   mdw_OPT_EFENCE
1281 dnl
1282 dnl Arguments:  ---
1283 dnl
1284 dnl Use:        Links with the Electric Fence library.
1285
1286 AC_DEFUN(mdw_OPT_EFENCE,
1287 [AC_ARG_WITH(electric-fence,
1288 [  --with-electric-fence   link programs with Electric Fence],
1289 [if test "$withval" = "yes"; then
1290   AC_CHECK_LIB(efence, malloc)
1291 fi])])
1292
1293 dnl --- *@-mdw_OPT_mLib_DEBUG-@* ---
1294 dnl
1295 dnl Author:     Mark Wooding
1296 dnl
1297 dnl Synopsis:   mdw_OPT_mLib_DEBUG(PROGRAM)
1298 dnl
1299 dnl Arguments:  ---
1300 dnl
1301 dnl Use:        Provides options for mLib debugging.  In particular, the
1302 dnl             following are defined:
1303 dnl
1304 dnl               --enable-tracing        turns off the NTRACE variable
1305 dnl               --enable-track          turns on malloc tracking
1306 dnl               --enable-blame-PROGRAM  tracks malloc contexts in PROGRAM
1307 dnl
1308 dnl             There must be  a separate `blame' option, so that the various
1309 dnl             blame options work properly.
1310
1311 AC_DEFUN(mdw_OPT_mLib_DEBUG,
1312 [mdw_OPT_NDEBUG
1313 mdw_OPT_EFENCE
1314
1315 AC_ARG_ENABLE(tracing,
1316 [  --enable-tracing        enable output of tracing information],
1317 [if test "$enableval" = "no"; then
1318   AC_DEFINE(NTRACE, 1)
1319 fi],
1320 [AC_DEFINE(NTRACE, 1)])
1321
1322 AC_ARG_ENABLE(track,
1323 [  --enable-track          enable tracking of malloc and free],
1324 [AC_DEFINE(TRACK_ENABLE, 1)])
1325
1326 AC_ARG_ENABLE(blame-$1,
1327 [  --enable-blame-$1
1328                           track malloc contexts while in $1],
1329 [AC_DEFINE(TRACK_BLAME, 1)])])
1330
1331 dnl----- That's all, folks --------------------------------- *@--GLOB-END--@*