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

   1 dnl -*-fundamental-*-                                     *@--GLOB-HEADER--@*
   2 dnl
   3 dnl $Id: aclocal.glob,v 1.8 1999/11/26 01:23:17 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 1.8  1999/11/26 01:23:17  mdw
  32 dnl And support for MXD (not yet released).
  33 dnl
  34 dnl Revision 1.7  1999/11/11 20:03:58  mdw
  35 dnl Add support for mgLib too.
  36 dnl
  37 dnl Revision 1.6  1999/11/11 17:49:33  mdw
  38 dnl New macros for configuring clients of mLib and Catacomb.
  39 dnl
  40 dnl Revision 1.5  1999/07/27 18:27:37  mdw
  41 dnl Fix typo in header line for mdw_DECL_ENVIRON.
  42 dnl
  43 dnl Revision 1.4  1999/07/26 23:44:32  mdw
  44 dnl Reorder and tidy documentation.
  45 dnl
  46 dnl Revision 1.3  1999/07/17 10:27:44  mdw
  47 dnl More useful macros added.
  48 dnl
  49 dnl Revision 1.2  1999/05/13 22:57:23  mdw
  50 dnl Change `-ise' to `-ize' throughout.
  51 dnl
  52 dnl Revision 1.1.1.1  1999/05/05 19:23:47  mdw
  53 dnl New import.  The old CVS repository was lost in a disk disaster.
  54 dnl
  55
  56 dnl----- Common files distribution --------------------------- *@--NOTICE--@*
  57 dnl
  58 dnl $Id: aclocal.glob,v 1.8 1999/11/26 01:23:17 mdw Exp $
  59
  60 dnl --- *@-AC_PROG_CC_STDC-@* ---
  61 dnl
  62 dnl Author:     Franc,ois Pinard
  63 dnl
  64 dnl Synopsis:   AC_PROG_CC_STDC
  65 dnl
  66 dnl Arguments:  ---
  67 dnl
  68 dnl Use:        If the C compiler in not in ANSI C mode by default, try to
  69 dnl             add an option to output variable `CC' to make it so.  This
  70 dnl             macro tries various options that select ANSI C on some system
  71 dnl             or another.  It considers the compiler to be in ANSI C mode
  72 dnl             if it defines `__STDC__' to 1 and handles function prototypes
  73 dnl             correctly.
  74 dnl
  75 dnl             If you use this macro, you should check after calling it
  76 dnl             whether the C compiler has been set to accept ANSI C; if not,
  77 dnl             the shell variable `ac_cv_prog_cc_stdc' is set to `no'.  If
  78 dnl             you wrote your source code in ANSI C, you can make an
  79 dnl             un-ANSIfied copy of it by using the program `ansi2knr', which
  80 dnl             comes with Ghostscript.
  81 dnl
  82 dnl                                     (documentation by Franc,ois Pinard)
  83
  84 AC_DEFUN(AM_PROG_CC_STDC,
  85 [AC_REQUIRE([AC_PROG_CC])
  86 AC_BEFORE([$0], [AC_C_INLINE])
  87 AC_BEFORE([$0], [AC_C_CONST])
  88 AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C)
  89 AC_CACHE_VAL(am_cv_prog_cc_stdc,
  90 [am_cv_prog_cc_stdc=no
  91 ac_save_CC="$CC"
  92 # Don't try gcc -ansi; that turns off useful extensions and
  93 # breaks some systems' header files.
  94 # AIX                   -qlanglvl=ansi
  95 # Ultrix and OSF/1      -std1
  96 # HP-UX                 -Aa -D_HPUX_SOURCE
  97 # SVR4                  -Xc -D__EXTENSIONS__
  98 for ac_arg in "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
  99 do
 100   CC="$ac_save_CC $ac_arg"
 101   AC_TRY_COMPILE(
 102 [#if !defined(__STDC__) || __STDC__ != 1
 103 choke me
 104 #endif
 105 /* DYNIX/ptx V4.1.3 can't compile sys/stat.h with -Xc -D__EXTENSIONS__. */
 106 #ifdef _SEQUENT_
 107 # include <sys/types.h>
 108 # include <sys/stat.h>
 109 #endif
 110 ], [
 111 int test (int i, double x);
 112 struct s1 {int (*f) (int a);};
 113 struct s2 {int (*f) (double a);};],
 114 [am_cv_prog_cc_stdc="$ac_arg"; break])
 115 done
 116 CC="$ac_save_CC"
 117 ])
 118 if test -z "$am_cv_prog_cc_stdc"; then
 119   AC_MSG_RESULT([none needed])
 120 else
 121   AC_MSG_RESULT($am_cv_prog_cc_stdc)
 122 fi
 123 case "x$am_cv_prog_cc_stdc" in
 124   x|xno) ;;
 125   *) CC="$CC $am_cv_prog_cc_stdc" ;;
 126 esac
 127 ])
 128
 129 dnl----- AutoMake macros ------------------------------------- *@--IGNORE--@*
 130
 131 dnl --- *@-AM_CONDITIONAL-@* ---
 132 dnl
 133 dnl Author:     Unknown
 134 dnl
 135 dnl Synopsis:   AM_CONDITIONAL(NAME, TEST)
 136 dnl
 137 dnl Arguments:  NAME = name of the conditional
 138 dnl             TEST = a shell list to execute
 139 dnl
 140 dnl Use:        Allows conditional sections in Makefiles.
 141
 142 AC_DEFUN(AM_CONDITIONAL,
 143 [AC_SUBST($1_TRUE)
 144 AC_SUBST($1_FALSE)
 145 if $2; then
 146   $1_TRUE=
 147   $1_FALSE='#'
 148 else
 149   $1_TRUE='#'
 150   $1_FALSE=
 151 fi])
 152
 153 dnl --- *@-AM_CYGWIN32-@* ---
 154 dnl
 155 dnl Author:     Cygnus (I guess)
 156 dnl
 157 dnl Synopsis:   AM_CYGWIN32
 158 dnl
 159 dnl Arguments:  ---
 160 dnl
 161 dnl Use:        Check to see if we're running under Cygwin32, without using
 162 dnl             AC_CANONICAL_*.  If so, set output variable EXEEXT to
 163 dnl             ".exe".  Otherwise set it to "".
 164
 165 dnl AM_CYGWIN32()
 166 dnl You might think we can do this by checking for a cygwin32-specific
 167 dnl cpp define.  We can't, because cross-compilers that target
 168 dnl cygwin32 don't use the .exe suffix.  I don't know why.
 169 AC_DEFUN(AM_CYGWIN32,
 170 [AC_CACHE_CHECK(for Cygwin32 environment, am_cv_cygwin32,
 171 [cat > conftest.$ac_ext << 'EOF'
 172 int main () {
 173 /* Nothing.  */
 174 return 0; }
 175 EOF
 176 if AC_TRY_EVAL(ac_link) && test -s conftest.exe; then
 177    am_cv_cygwin32=yes
 178 else
 179    am_cv_cygwin32=no
 180 fi
 181 rm -f conftest*])
 182 EXEEXT=
 183 test "$am_cv_cygwin32" = yes && EXEEXT=.exe
 184 AC_SUBST(EXEEXT)])
 185
 186 dnl --- *@-AM_WITH_DMALLOC-@* ---
 187 dnl
 188 dnl Author:     Franc,ois Pinard
 189 dnl
 190 dnl Synopsis:   AM_WITH_DMALLOC
 191 dnl
 192 dnl Arguments:  ---
 193 dnl
 194 dnl Use:        Links with `-dmalloc' if told to by the user.
 195
 196 ## ----------------------------------- ##
 197 ## Check if --with-dmalloc was given.  ##
 198 ## From Franc,ois Pinard               ##
 199 ## ----------------------------------- ##
 200
 201 # serial 1
 202
 203 AC_DEFUN(AM_WITH_DMALLOC,
 204 [AC_MSG_CHECKING(if malloc debugging is wanted)
 205 AC_ARG_WITH(dmalloc,
 206 [  --with-dmalloc          use dmalloc, as in
 207                           ftp://ftp.letters.com/src/dmalloc/dmalloc.tar.gz],
 208 [if test "$withval" = yes; then
 209   AC_MSG_RESULT(yes)
 210   AC_DEFINE(WITH_DMALLOC)
 211   LIBS="$LIBS -ldmalloc"
 212   LDFLAGS="$LDFLAGS -g"
 213 else
 214   AC_MSG_RESULT(no)
 215 fi], [AC_MSG_RESULT(no)])
 216 ])
 217
 218 dnl --- *@-AM_FUNC_ERROR_AT_LINE-@* ---
 219 dnl
 220 dnl Author:     Jim Meyering
 221 dnl
 222 dnl Synopsis:   AM_FUNC_ERROR_AT_LINE
 223 dnl
 224 dnl Arguments:  ---
 225 dnl
 226 dnl Use:        Use this if you use the GNU error.[ch].
 227
 228 dnl FIXME: Migrate into libit
 229
 230 AC_DEFUN(AM_FUNC_ERROR_AT_LINE,
 231 [AC_CACHE_CHECK([for error_at_line], am_cv_lib_error_at_line,
 232  [AC_TRY_LINK([],[error_at_line(0, 0, "", 0, "");],
 233               am_cv_lib_error_at_line=yes,
 234               am_cv_lib_error_at_line=no)])
 235  if test $am_cv_lib_error_at_line = no; then
 236    LIBOBJS="$LIBOBJS error.o"
 237  fi
 238  AC_SUBST(LIBOBJS)dnl
 239 ])
 240
 241 dnl --- *@-AM_INIT_GUILE_MODULE-@* ---
 242 dnl
 243 dnl Author:     Unknown
 244 dnl
 245 dnl Synopsis:   AM_INIT_GUILE_MODULE(MODNAME)
 246 dnl
 247 dnl Arguments:  MODNAME = value to initialize `module' variable with
 248 dnl
 249 dnl Use:        This macro will automatically get the guile version from the
 250 dnl             top-level srcdir, and will initialize automake.  It also
 251 dnl             defines the `module' variable.
 252
 253 AC_DEFUN([AM_INIT_GUILE_MODULE],[
 254 . $srcdir/../GUILE-VERSION
 255 AM_INIT_AUTOMAKE($PACKAGE, $VERSION)
 256 AC_CONFIG_AUX_DIR(..)
 257 module=[$1]
 258 AC_SUBST(module)])
 259
 260 dnl --- *@-AM_CONFIG_HEADER-@* ---
 261 dnl
 262 dnl Author:     Unknown
 263 dnl
 264 dnl Synopsis:   AM_CONFIG_HEADER(HEADER ...)
 265 dnl
 266 dnl Arguments:  HEADER = a header spec, as for AC_CONFIG_HEADER
 267 dnl
 268 dnl Use:        Like AC_CONFIG_HEADER, but automatically create stamp file.
 269
 270 AC_DEFUN(AM_CONFIG_HEADER,
 271 [AC_PREREQ([2.12])
 272 AC_CONFIG_HEADER([$1])
 273 dnl When config.status generates a header, we must update the stamp-h file.
 274 dnl This file resides in the same directory as the config header
 275 dnl that is generated.  We must strip everything past the first ":",
 276 dnl and everything past the last "/".
 277 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
 278 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
 279 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/
 280 \)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
 281 <<am_indx=1
 282 for am_file in <<$1>>; do
 283   case " <<$>>CONFIG_HEADERS " in
 284   *" <<$>>am_file "*<<)>>
 285     echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
 286     ;;
 287   esac
 288   am_indx=`expr "<<$>>am_indx" + 1`
 289 done<<>>dnl>>)
 290 changequote([,]))])
 291
 292 dnl --- *@-AM_INIT_AUTOMAKE-@*
 293 dnl
 294 dnl Author:     Unknown
 295 dnl
 296 dnl Synopsis:   AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 297 dnl
 298 dnl Arguments:  PACKAGE = package name
 299 dnl             VERSION = version number
 300 dnl             NO-DEFINE = if set, don't define package and version number
 301 dnl
 302 dnl Use:        Do all the work for Automake.  This macro actually does too
 303 dnl             much -- some checks are only needed if your package does
 304 dnl             certain things.  But this isn't really a big deal.
 305
 306 # serial 1
 307
 308 AC_DEFUN(AM_INIT_AUTOMAKE,
 309 [AC_REQUIRE([AM_PROG_INSTALL])
 310 PACKAGE=[$1]
 311 AC_SUBST(PACKAGE)
 312 VERSION=[$2]
 313 AC_SUBST(VERSION)
 314 dnl test to see if srcdir already configured
 315 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
 316   AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 317 fi
 318 ifelse([$3],,
 319 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
 320 AC_DEFINE_UNQUOTED(VERSION, "$VERSION"))
 321 AM_SANITY_CHECK
 322 AC_ARG_PROGRAM
 323 dnl FIXME This is truly gross.
 324 missing_dir=`cd $ac_aux_dir && pwd`
 325 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
 326 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
 327 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
 328 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
 329 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
 330 AC_PROG_MAKE_SET])
 331
 332 dnl --- *@-AM_PROG_INSTALL-@* ---
 333 dnl
 334 dnl Author:     Franc,ois Pinard
 335 dnl
 336 dnl Synopsis:   AM_PROG_INSTALL
 337 dnl
 338 dnl Arguments:  ---
 339 dnl
 340 dnl Use:        Calls `AC_PROG_INSTALL' to find an installer.  Then it sets
 341 dnl             `INSTALL_SCRIPT' to a suitable value if necessary.
 342
 343 # serial 1
 344
 345 AC_DEFUN(AM_PROG_INSTALL,
 346 [AC_PROG_INSTALL
 347 test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL} -m 755'
 348 AC_SUBST(INSTALL_SCRIPT)dnl
 349 ])
 350
 351 dnl --- *@-AM_PROG_LEX-@* ---
 352 dnl
 353 dnl Author:     Alexandre Oliva
 354 dnl
 355 dnl Synopsis:   AM_PROG_LEX
 356 dnl
 357 dnl Arguments:  ---
 358 dnl
 359 dnl Use:        Replacement for AC_PROG_LEX and AC_DECL_YYTEXT
 360
 361 dnl AM_PROG_LEX
 362 dnl Look for flex, lex or missing, then run AC_PROG_LEX and AC_DECL_YYTEXT
 363 AC_DEFUN(AM_PROG_LEX,
 364 [missing_dir=ifelse([$1],,`cd $ac_aux_dir && pwd`,$1)
 365 AC_CHECK_PROGS(LEX, flex lex, "$missing_dir/missing flex")
 366 AC_PROG_LEX
 367 AC_DECL_YYTEXT])
 368
 369 dnl --- *@-AM_PROG_LIBTOOL-@* ---
 370 dnl
 371 dnl Author:     Unknown
 372 dnl
 373 dnl Synopsis:   AM_PROG_LIBTOOL
 374 dnl
 375 dnl Arguments:  ---
 376 dnl
 377 dnl Use:        Configures `libtool' for the target architecture.
 378
 379 ##
 380 ## Configure libtool for the target system.
 381 ##
 382 # serial 1 AM_PROG_LIBTOOL
 383 AC_DEFUN(AM_PROG_LIBTOOL,
 384 [AC_REQUIRE([AC_CANONICAL_HOST])
 385 AC_REQUIRE([AC_PROG_CC])
 386 AC_REQUIRE([AC_PROG_RANLIB])
 387
 388 # Always use our own libtool.
 389 LIBTOOL='$(top_builddir)/libtool'
 390 AC_SUBST(LIBTOOL)
 391
 392 dnl Allow the --disable-shared flag to stop us from building shared libs.
 393 AC_ARG_ENABLE(shared,
 394 [  --enable-shared         build shared libraries [default=yes]],
 395 test "$enableval" = no && libtool_shared=" --disable-shared",
 396 libtool_shared=)
 397
 398 libtool_flags="$libtool_shared"
 399 test "$silent" = yes && libtool_flags="$libtool_flags --silent"
 400 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
 401
 402 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
 403 CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" LD="$LD" RANLIB="$RANLIB" \
 404 $ac_aux_dir/ltconfig $libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
 405 || AC_MSG_ERROR([libtool configure failed])
 406 ])
 407
 408 dnl --- *@-AM_PATH_LISPDIR-@* ---
 409 dnl
 410 dnl Author:     Ulrich Drepper
 411 dnl
 412 dnl Synopsis:   AM_PATH_LISPDIR
 413 dnl
 414 dnl Arguments:  ---
 415 dnl
 416 dnl Use:        Sets the variable `lispdir' to point to a place to install
 417 dnl             Emacs lisp files.
 418
 419 ## ------------------------
 420 ## Emacs LISP file handling
 421 ## From Ulrich Drepper
 422 ## ------------------------
 423
 424 # serial 1
 425
 426 AC_DEFUN(AM_PATH_LISPDIR,
 427  [# If set to t, that means we are running in a shell under Emacs.
 428   # If you have an Emacs named "t", then use the full path.
 429   test "$EMACS" = t && EMACS=
 430   AC_PATH_PROG(EMACS, emacs xemacs, no)
 431   if test $EMACS != "no"; then
 432     AC_MSG_CHECKING([where .elc files should go])
 433     dnl Set default value
 434     lispdir="\$(datadir)/emacs/site-lisp"
 435     if test "x$prefix" = "xNONE"; then
 436       if test -d $ac_default_prefix/share/emacs/site-lisp; then
 437         lispdir="\$(prefix)/share/emacs/site-lisp"
 438       else
 439         if test -d $ac_default_prefix/lib/emacs/site-lisp; then
 440           lispdir="\$(prefix)/lib/emacs/site-lisp"
 441         fi
 442       fi
 443     else
 444       if test -d $prefix/share/emacs/site-lisp; then
 445         lispdir="\$(prefix)/share/emacs/site-lisp"
 446       else
 447         if test -d $prefix/lib/emacs/site-lisp; then
 448           lispdir="\$(prefix)/lib/emacs/site-lisp"
 449         fi
 450       fi
 451     fi
 452     AC_MSG_RESULT($lispdir)
 453   fi
 454   AC_SUBST(lispdir)])
 455
 456 dnl --- *@-AM_MAINTAINTER_MODE-@* ---
 457 dnl
 458 dnl Author:     Jim Meyering
 459 dnl
 460 dnl Synopsis:   jm_MAINTAINER_MODE
 461 dnl
 462 dnl Arguments:  ---
 463 dnl
 464 dnl Use:        Provides an option `--enable-maintainer-mode' which turns
 465 dnl             on rules which might normally be commented out.  The
 466 dnl             substitution variable `MAINT' is set to be a comment when
 467 dnl             this option is disabled, which it is by default.
 468
 469 # serial 1
 470
 471 AC_DEFUN(AM_MAINTAINER_MODE,
 472 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 473   dnl maintainer-mode is disabled by default
 474   AC_ARG_ENABLE(maintainer-mode,
 475 [  --enable-maintainer-mode enable make rules and dependencies not useful
 476                           (and sometimes confusing) to the casual installer],
 477       USE_MAINTAINER_MODE=$enableval,
 478       USE_MAINTAINER_MODE=no)
 479   AC_MSG_RESULT($USE_MAINTAINER_MODE)
 480   if test $USE_MAINTAINER_MODE = yes; then
 481     MAINT=
 482   else
 483     MAINT='#M#'
 484   fi
 485   AC_SUBST(MAINT)dnl
 486 ]
 487 )
 488
 489 dnl --- *@-AM_MISSING_PROG-@* ---
 490 dnl
 491 dnl Author:     Unknown
 492 dnl
 493 dnl Synopsis:   AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
 494 dnl
 495 dnl Arguments:  NAME = variable to set to the file's location
 496 dnl             PROGRAM = name of program to find
 497 dnl             DIRECTORY = directory to look in
 498 dnl
 499 dnl Use:        Fakes existence of a useful GNU maintainer tool.
 500
 501 AC_DEFUN(AM_MISSING_PROG,
 502 [AC_MSG_CHECKING(for working $2)
 503 # Run test in a subshell; some versions of sh will print an error if
 504 # an executable is not found, even if stderr is redirected.
 505 # Redirect stdin to placate older versions of autoconf.  Sigh.
 506 if ($2 --version) < /dev/null > /dev/null 2>&1; then
 507    $1=$2
 508    AC_MSG_RESULT(found)
 509 else
 510    $1="$3/missing $2"
 511    AC_MSG_RESULT(missing)
 512 fi
 513 AC_SUBST($1)])
 514
 515 dnl --- *@-AM_FUNC_MKTIME-@* ---
 516 dnl
 517 dnl Author:     Jim Meyering
 518 dnl
 519 dnl Synopsis:   AM_FUNC_MKTIME
 520 dnl
 521 dnl Arguments:  ---
 522 dnl
 523 dnl Use:        Checks for a working mktime function.
 524
 525 AC_DEFUN(AM_FUNC_MKTIME,
 526 [AC_REQUIRE([AC_HEADER_TIME])dnl
 527  AC_CHECK_HEADERS(sys/time.h)
 528  AC_CACHE_CHECK([for working mktime], am_cv_func_working_mktime,
 529   [AC_TRY_RUN(
 530 changequote(<<, >>)dnl
 531 <</* Test program from Paul Eggert (eggert@twinsun.com)
 532    and Tony Leneis (tony@plaza.ds.adp.com).  */
 533 #if TIME_WITH_SYS_TIME
 534 # include <sys/time.h>
 535 # include <time.h>
 536 #else
 537 # if HAVE_SYS_TIME_H
 538 #  include <sys/time.h>
 539 # else
 540 #  include <time.h>
 541 # endif
 542 #endif
 543
 544 static time_t time_t_max;
 545
 546 /* Values we'll use to set the TZ environment variable.  */
 547 static const char *const tz_strings[] = {
 548   NULL, "GMT0", "JST-9", "EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00"
 549 };
 550 #define N_STRINGS (sizeof (tz_strings) / sizeof (tz_strings[0]))
 551
 552 static void
 553 mktime_test (now)
 554      time_t now;
 555 {
 556   if (mktime (localtime (&now)) != now)
 557     exit (1);
 558   now = time_t_max - now;
 559   if (mktime (localtime (&now)) != now)
 560     exit (1);
 561 }
 562
 563 int
 564 main ()
 565 {
 566   time_t t, delta;
 567   int i;
 568
 569   for (time_t_max = 1; 0 < time_t_max; time_t_max *= 2)
 570     continue;
 571   time_t_max--;
 572   delta = time_t_max / 997; /* a suitable prime number */
 573   for (i = 0; i < N_STRINGS; i++)
 574     {
 575       if (tz_strings[i])
 576         putenv (tz_strings[i]);
 577
 578       for (t = 0; t <= time_t_max - delta; t += delta)
 579         mktime_test (t);
 580       mktime_test ((time_t) 60 * 60);
 581       mktime_test ((time_t) 60 * 60 * 24);
 582     }
 583   exit (0);
 584 }
 585               >>,
 586 changequote([, ])dnl
 587              am_cv_func_working_mktime=yes, am_cv_func_working_mktime=no,
 588              dnl When crosscompiling, assume mktime is missing or broken.
 589              am_cv_func_working_mktime=no)
 590   ])
 591   if test $am_cv_func_working_mktime = no; then
 592     LIBOBJS="$LIBOBJS mktime.o"
 593   fi
 594 ])
 595
 596 dnl --- *@-AM_FUNC_OBSTACK-@* ---
 597 dnl
 598 dnl Author:     Jim Meyering
 599 dnl
 600 dnl Synopsis:   AM_FUNC_OBSTACK
 601 dnl
 602 dnl Arguments:  ---
 603 dnl
 604 dnl Use:        Checks for GNU obstacks.
 605
 606 AC_DEFUN(AM_FUNC_OBSTACK,
 607 [AC_CACHE_CHECK([for obstacks], am_cv_func_obstack,
 608  [AC_TRY_LINK([#include "obstack.h"],
 609               [struct obstack *mem;obstack_free(mem,(char *) 0)],
 610               am_cv_func_obstack=yes,
 611               am_cv_func_obstack=no)])
 612  if test $am_cv_func_obstack = yes; then
 613    AC_DEFINE(HAVE_OBSTACK)
 614  else
 615    LIBOBJS="$LIBOBJS obstack.o"
 616  fi
 617 ])
 618
 619 dnl --- *@-AC_C_PROTOTYPES-@* ---
 620 dnl
 621 dnl Author:     Franc,ois Pinard
 622 dnl
 623 dnl Synopsis:   AC_C_PROTOTYPES
 624 dnl
 625 dnl Arguments:  ---
 626 dnl
 627 dnl Use:        If the C compiler understands ANSI C, define `PROTOTYPES',
 628 dnl             and clear the `U' and `ANSI2KNR' variables.  Otherwise,
 629 dnl             set `U' to be `_' and `ANSI2KNR' to be `./ansi2knr'.
 630
 631 # serial 1
 632
 633 AC_DEFUN(fp_C_PROTOTYPES,
 634 [AC_REQUIRE([fp_PROG_CC_STDC])
 635 AC_MSG_CHECKING([for function prototypes])
 636 if test "$ac_cv_prog_cc_stdc" != no; then
 637   AC_MSG_RESULT(yes)
 638   AC_DEFINE(PROTOTYPES)
 639   U= ANSI2KNR=
 640 else
 641   AC_MSG_RESULT(no)
 642   U=_ ANSI2KNR=./ansi2knr
 643 fi
 644 AC_SUBST(U)dnl
 645 AC_SUBST(ANSI2KNR)dnl
 646 ])
 647
 648 dnl --- *@-AM_PATH_GTK-@* ---
 649 dnl
 650 dnl Author:     Owen Taylor
 651 dnl
 652 dnl Synopsis:   AM_PATH_GTK(MIN-VERSION, [ACTION-IF-FOUND], [ACTION-IF-NOT])
 653 dnl
 654 dnl Arguments:  MIN-VERSION = minimum version of GTK required
 655 dnl             ACTION-IF-FOUND = executed if GTK found OK
 656 dnl             ACTION-IF-NOT-FOUND = what to do if GTK not available
 657 dnl
 658 dnl Use:        Sets up compilation environment suitably for GTK programming.
 659
 660 # Configure paths for GTK+
 661 # Owen Taylor     97-11-3
 662
 663 dnl AM_PATH_GTK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 664 dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS
 665 dnl
 666 AC_DEFUN(AM_PATH_GTK,
 667 [dnl
 668 dnl Get the cflags and libraries from the gtk-config script
 669 dnl
 670 AC_ARG_WITH(gtk-prefix,[  --with-gtk-prefix=PFX   Prefix where GTK is installed (optional)],
 671             gtk_config_prefix="$withval", gtk_config_prefix="")
 672 AC_ARG_WITH(gtk-exec-prefix,[  --with-gtk-exec-prefix=PFX Exec prefix where GTK is installed (optional)],
 673             gtk_config_exec_prefix="$withval", gtk_config_exec_prefix="")
 674 AC_ARG_ENABLE(gtktest, [  --disable-gtktest       Do not try to compile and run a test GTK program],
 675                     , enable_gtktest=yes)
 676
 677   if test x$gtk_config_exec_prefix != x ; then
 678      gtk_config_args="$gtk_config_args --exec-prefix=$gtk_config_exec_prefix"
 679      if test x${GTK_CONFIG+set} != xset ; then
 680         GTK_CONFIG=$gtk_config_exec_prefix/bin/gtk-config
 681      fi
 682   fi
 683   if test x$gtk_config_prefix != x ; then
 684      gtk_config_args="$gtk_config_args --prefix=$gtk_config_prefix"
 685      if test x${GTK_CONFIG+set} != xset ; then
 686         GTK_CONFIG=$gtk_config_prefix/bin/gtk-config
 687      fi
 688   fi
 689
 690   AC_PATH_PROG(GTK_CONFIG, gtk-config, no)
 691   min_gtk_version=ifelse([$1], ,0.99.7,$1)
 692   AC_MSG_CHECKING(for GTK - version >= $min_gtk_version)
 693   no_gtk=""
 694   if test "$GTK_CONFIG" = "no" ; then
 695     no_gtk=yes
 696   else
 697     GTK_CFLAGS=`$GTK_CONFIG $gtk_config_args --cflags`
 698     GTK_LIBS=`$GTK_CONFIG $gtk_config_args --libs`
 699     gtk_config_major_version=`$GTK_CONFIG $gtk_config_args --version | \
 700            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
 701     gtk_config_minor_version=`$GTK_CONFIG $gtk_config_args --version | \
 702            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
 703     gtk_config_micro_version=`$GTK_CONFIG $gtk_config_args --version | \
 704            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
 705     if test "x$enable_gtktest" = "xyes" ; then
 706       ac_save_CFLAGS="$CFLAGS"
 707       ac_save_LIBS="$LIBS"
 708       CFLAGS="$CFLAGS $GTK_CFLAGS"
 709       LIBS="$LIBS $GTK_LIBS"
 710 dnl
 711 dnl Now check if the installed GTK is sufficiently new. (Also sanity
 712 dnl checks the results of gtk-config to some extent
 713 dnl
 714       rm -f conf.gtktest
 715       AC_TRY_RUN([
 716 #include <gtk/gtk.h>
 717 #include <stdio.h>
 718
 719 int
 720 main ()
 721 {
 722   int major, minor, micro;
 723   char *tmp_version;
 724
 725   system ("touch conf.gtktest");
 726
 727   /* HP/UX 9 (%@#!) writes to sscanf strings */
 728   tmp_version = g_strdup("$min_gtk_version");
 729   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
 730      printf("%s, bad version string\n", "$min_gtk_version");
 731      exit(1);
 732    }
 733
 734   if ((gtk_major_version != $gtk_config_major_version) ||
 735       (gtk_minor_version != $gtk_config_minor_version) ||
 736       (gtk_micro_version != $gtk_config_micro_version))
 737     {
 738       printf("\n*** 'gtk-config --version' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n",
 739              $gtk_config_major_version, $gtk_config_minor_version, $gtk_config_micro_version,
 740              gtk_major_version, gtk_minor_version, gtk_micro_version);
 741       printf ("*** was found! If gtk-config was correct, then it is best\n");
 742       printf ("*** to remove the old version of GTK+. You may also be able to fix the error\n");
 743       printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
 744       printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
 745       printf("*** required on your system.\n");
 746       printf("*** If gtk-config was wrong, set the environment variable GTK_CONFIG\n");
 747       printf("*** to point to the correct copy of gtk-config, and remove the file config.cache\n");
 748       printf("*** before re-running configure\n");
 749     }
 750   else
 751     {
 752       if ((gtk_major_version > major) ||
 753         ((gtk_major_version == major) && (gtk_minor_version > minor)) ||
 754         ((gtk_major_version == major) && (gtk_minor_version == minor) && (gtk_micro_version >= micro)))
 755       {
 756         return 0;
 757        }
 758      else
 759       {
 760         printf("\n*** An old version of GTK+ (%d.%d.%d) was found.\n",
 761                gtk_major_version, gtk_minor_version, gtk_micro_version);
 762         printf("*** You need a version of GTK+ newer than %d.%d.%d. The latest version of\n",
 763                major, minor, micro);
 764         printf("*** GTK+ is always available from ftp://ftp.gtk.org.\n");
 765         printf("***\n");
 766         printf("*** If you have already installed a sufficiently new version, this error\n");
 767         printf("*** probably means that the wrong copy of the gtk-config shell script is\n");
 768         printf("*** being found. The easiest way to fix this is to remove the old version\n");
 769         printf("*** of GTK+, but you can also set the GTK_CONFIG environment to point to the\n");
 770         printf("*** correct copy of gtk-config. (In this case, you will have to\n");
 771         printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
 772         printf("*** so that the correct libraries are found at run-time))\n");
 773       }
 774     }
 775   return 1;
 776 }
 777 ],, no_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
 778        CFLAGS="$ac_save_CFLAGS"
 779        LIBS="$ac_save_LIBS"
 780      fi
 781   fi
 782   if test "x$no_gtk" = x ; then
 783      AC_MSG_RESULT(yes)
 784      ifelse([$2], , :, [$2])
 785   else
 786      AC_MSG_RESULT(no)
 787      if test "$GTK_CONFIG" = "no" ; then
 788        echo "*** The gtk-config script installed by GTK could not be found"
 789        echo "*** If GTK was installed in PREFIX, make sure PREFIX/bin is in"
 790        echo "*** your path, or set the GTK_CONFIG environment variable to the"
 791        echo "*** full path to gtk-config."
 792      else
 793        if test -f conf.gtktest ; then
 794         :
 795        else
 796           echo "*** Could not run GTK test program, checking why..."
 797           CFLAGS="$CFLAGS $GTK_CFLAGS"
 798           LIBS="$LIBS $GTK_LIBS"
 799           AC_TRY_LINK([
 800 #include <gtk/gtk.h>
 801 #include <stdio.h>
 802 ],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
 803         [ echo "*** The test program compiled, but did not run. This usually means"
 804           echo "*** that the run-time linker is not finding GTK or finding the wrong"
 805           echo "*** version of GTK. If it is not finding GTK, you'll need to set your"
 806           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
 807           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
 808           echo "*** is required on your system"
 809           echo "***"
 810           echo "*** If you have an old version installed, it is best to remove it, although"
 811           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
 812           echo "***"
 813           echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
 814           echo "*** came with the system with the command"
 815           echo "***"
 816           echo "***    rpm --erase --nodeps gtk gtk-devel" ],
 817         [ echo "*** The test program failed to compile or link. See the file config.log for the"
 818           echo "*** exact error that occured. This usually means GTK was incorrectly installed"
 819           echo "*** or that you have moved GTK since it was installed. In the latter case, you"
 820           echo "*** may want to edit the gtk-config script: $GTK_CONFIG" ])
 821           CFLAGS="$ac_save_CFLAGS"
 822           LIBS="$ac_save_LIBS"
 823        fi
 824      fi
 825      GTK_CFLAGS=""
 826      GTK_LIBS=""
 827      ifelse([$3], , :, [$3])
 828   fi
 829   AC_SUBST(GTK_CFLAGS)
 830   AC_SUBST(GTK_LIBS)
 831   rm -f conf.gtktest
 832 ])
 833
 834 dnl --- *@-AC_TYPE_PTRDIFF_T-@* ---
 835 dnl
 836 dnl Author:     Ulrich Drepper
 837 dnl
 838 dnl Synopsis:   AC_TYPE_PTRDIFF_T
 839 dnl
 840 dnl Arguments:  ---
 841 dnl
 842 dnl Use:        Sets HAVE_PTRDIFF_T if the type exists.
 843
 844 AC_DEFUN(AM_TYPE_PTRDIFF_T,
 845   [AC_CACHE_CHECK([for ptrdiff_t], am_cv_type_ptrdiff_t,
 846      [AC_TRY_COMPILE([#include <stddef.h>], [ptrdiff_t p],
 847                      am_cv_type_ptrdiff_t=yes, am_cv_type_ptrdiff_t=no)])
 848    if test $am_cv_type_ptrdiff_t = yes; then
 849      AC_DEFINE(HAVE_PTRDIFF_T)
 850    fi
 851 ])
 852
 853 dnl --- *@-AM_WITH_REGEX-@* ---
 854 dnl
 855 dnl Author:     Unknown (possibly Franc,ois Pinard)
 856 dnl
 857 dnl Synopsis:   AM_WITH_REGEX
 858 dnl
 859 dnl Arguments:  ---
 860 dnl
 861 dnl Use:
 862 dnl             The idea is to distribute rx.[hc] and regex.[hc] together,
 863 dnl             for a while.  The WITH_REGEX symbol (which should also be
 864 dnl             documented in acconfig.h) is used to decide which of regex.h
 865 dnl             or rx.h should be included in the application.  If
 866 dnl             `./configure --with-regex' is given (the default), the
 867 dnl             package will use gawk's regex.  If `./configure
 868 dnl             --without-regex', a check is made to see if rx is already
 869 dnl             installed, as with newer Linux'es.  If not found, the package
 870 dnl             will use the rx from the distribution.  If found, the package
 871 dnl             will use the system's rx which, on Linux at least, will
 872 dnl             result in a smaller executable file.
 873
 874 AC_DEFUN(AM_WITH_REGEX,
 875 [AC_MSG_CHECKING(which of GNU rx or gawk's regex is wanted)
 876 AC_ARG_WITH(regex,
 877 [  --without-regex         use GNU rx in lieu of gawk's regex for matching],
 878 [test "$withval" = yes && am_with_regex=1],
 879 [am_with_regex=1])
 880 if test -n "$am_with_regex"; then
 881   AC_MSG_RESULT(regex)
 882   AC_DEFINE(WITH_REGEX)
 883   AC_CACHE_CHECK([for GNU regex in libc], am_cv_gnu_regex,
 884     AC_TRY_LINK([], [extern int re_max_failures; re_max_failures = 1],
 885                 am_cv_gnu_regex=yes, am_cv_gnu_regex=no))
 886   if test $am_cv_gnu_regex = no; then
 887     LIBOBJS="$LIBOBJS regex.o"
 888   fi
 889 else
 890   AC_MSG_RESULT(rx)
 891   AC_CHECK_FUNC(re_rx_search, , [LIBOBJS="$LIBOBJS rx.o"])
 892 fi
 893 AC_SUBST(LIBOBJS)dnl
 894 ])
 895
 896 dnl --- *@-AM_SANITY_CHECK-@*
 897 dnl
 898 dnl Author:     Unknown
 899 dnl
 900 dnl Synopsis:   AM_SANITY_CHECK
 901 dnl
 902 dnl Arguments:  ---
 903 dnl
 904 dnl Use:        Check for build environment sanity.
 905
 906 AC_DEFUN(AM_SANITY_CHECK,
 907 [AC_MSG_CHECKING([whether build environment is sane])
 908 # Just in case
 909 sleep 1
 910 echo timestamp > conftestfile
 911 # Do `set' in a subshell so we don't clobber the current shell's
 912 # arguments.  Must try -L first in case configure is actually a
 913 # symlink; some systems play weird games with the mod time of symlinks
 914 # (eg FreeBSD returns the mod time of the symlink's containing
 915 # directory).
 916 if (
 917    set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
 918    if test "$@" = "X"; then
 919       # -L didn't work.
 920       set X `ls -t $srcdir/configure conftestfile`
 921    fi
 922    test "[$]2" = conftestfile
 923    )
 924 then
 925    # Ok.
 926    :
 927 else
 928    AC_MSG_ERROR([newly created file is older than distributed files!
 929 Check your system clock])
 930 fi
 931 rm -f conftest*
 932 AC_MSG_RESULT(yes)])
 933
 934 dnl --- *@-AM_FUNC_STRDOD-@* ---
 935 dnl
 936 dnl Author:     Jim Meyering
 937 dnl
 938 dnl Synopsis:   AM_FUNC_STRTOD
 939 dnl
 940 dnl Arguments:  ---
 941 dnl
 942 dnl Use:        Checks for a working strtod function.
 943
 944 ## Copyright (C) 1996 Free Software Foundation, Inc.
 945
 946 ## This program is free software; you can redistribute it and/or modify
 947 ## it under the terms of the GNU General Public License as published by
 948 ## the Free Software Foundation; either version 2, or (at your option)
 949 ## any later version.
 950
 951 ## This program is distributed in the hope that it will be useful,
 952 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
 953 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 954 ## GNU General Public License for more details.
 955
 956 ## You should have received a copy of the GNU General Public License
 957 ## along with this program; if not, write to the Free Software
 958 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 959 ## 02111-1307, USA.
 960
 961 ## From Jim Meyering.
 962
 963 ## serial 1
 964
 965 ## @defmac AC_FUNC_STRTOD
 966 ## @maindex FUNC_STRTOD
 967 ## @ovindex LIBOBJS
 968 ## If the @code{strtod} function is not available, or does not work
 969 ## correctly (like the one on SunOS 5.4), add @samp{strtod.o} to output
 970 ## variable @code{LIBOBJS}.
 971 ## @end defmac
 972
 973 AC_DEFUN(AM_FUNC_STRTOD,
 974 [AC_CACHE_CHECK(for working strtod, am_cv_func_strtod,
 975 [AC_TRY_RUN([
 976 double strtod ();
 977 int
 978 main()
 979 {
 980   {
 981     /* Some versions of Linux strtod mis-parse strings with leading '+'.  */
 982     char *string = " +69";
 983     char *term;
 984     double value;
 985     value = strtod (string, &term);
 986     if (value != 69 || term != (string + 4))
 987       exit (1);
 988   }
 989
 990   {
 991     /* Under Solaris 2.4, strtod returns the wrong value for the
 992        terminating character under some conditions.  */
 993
 994 ## @defmac AC_FUNC_STRTOD
 995 ## @maindex FUNC_STRTOD
 996 ## @ovindex LIBOBJS
 997 ## If the @code{strtod} function is not available, or does not work
 998 ## correctly (like the one on SunOS 5.4), add @samp{strtod.o} to output
 999 ## variable @code{LIBOBJS}.
1000 ## @end defmac
1001
1002 AC_DEFUN(AM_FUNC_STRTOD,
1003 [AC_CACHE_CHECK(for working strtod, am_cv_func_strtod,
1004 [AC_TRY_RUN([
1005 double strtod ();
1006 int
1007 main()
1008 {
1009   {
1010     /* Some versions of Linux strtod mis-parse strings with leading '+'.  */
1011     char *string = " +69";
1012     char *term;
1013     double value;
1014     value = strtod (string, &term);
1015     if (value != 69 || term != (string + 4))
1016       exit (1);
1017   }
1018
1019   {
1020     /* Under Solaris 2.4, strtod returns the wrong value for the
1021        terminating character under some conditions.  */
1022     char *string = "NaN";
1023     char *term;
1024     strtod (string, &term);
1025     if (term != string && *(term - 1) == 0)
1026       exit (1);
1027   }
1028   exit (0);
1029 }
1030 ], am_cv_func_strtod=yes, am_cv_func_strtod=no, am_cv_func_strtod=no)])
1031 test $am_cv_func_strtod = no && LIBOBJS="$LIBOBJS strtod.o"
1032 AC_SUBST(LIBOBJS)dnl
1033 am_cv_func_strtod_needs_libm=no
1034 if test $am_cv_func_strtod = no; then
1035   AC_CHECK_FUNCS(pow)
1036   if test $ac_cv_func_pow = no; then
1037     AC_CHECK_LIB(m, pow, [am_cv_func_strtod_needs_libm=yes],
1038                  [AC_MSG_WARN(can't find library containing definition of pow)])
1039   fi
1040 fi
1041 ])
1042
1043 dnl --- *@-AM_SYS_POSIX_TERMIOS-@* ---
1044 dnl
1045 dnl Author:     Jim Meyering
1046 dnl
1047 dnl Synopsis:   AM_SYS_POSIX_TERMIOS
1048 dnl
1049 dnl Arguments:  ---
1050 dnl
1051 dnl Use:        Checks for a POSIX termios.h.
1052
1053 AC_DEFUN(AM_SYS_POSIX_TERMIOS,
1054 [AC_CACHE_CHECK([POSIX termios], am_cv_sys_posix_termios,
1055   [AC_TRY_LINK([#include <sys/types.h>
1056 #include <unistd.h>
1057 #include <termios.h>],
1058   [/* SunOS 4.0.3 has termios.h but not the library calls.  */
1059    tcgetattr(0, 0);],
1060   am_cv_sys_posix_termios=yes,
1061   am_cv_sys_posix_termios=no)])
1062 ])
1063
1064 dnl----- Macros by Mark Wooding ------------------------------ *@--IGNORE--@*
1065
1066 dnl --- *@-mdw_REQUIRE-@* ---
1067 dnl
1068 dnl Author:     Mark Wooding
1069 dnl
1070 dnl Synopsis:   mdw_REQUIRE(MACRO, ARGS...)
1071 dnl
1072 dnl Arguments:  MACRO = name of a macro which should have been called
1073 dnl             ARGS = arguments to pass
1074 dnl
1075 dnl Use:        Like `AC_REQUIRE', only it handles arguments.
1076
1077 AC_DEFUN(mdw_REQUIRE,
1078 [ifdef([AC_PROVIDE_$1], ,
1079 [AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))dnl
1080 indir($@)
1081 AC_DIVERT_POP()dnl
1082 ])])
1083
1084 dnl --- *@-mdw_CURSES-@* ---
1085 dnl
1086 dnl Author:     Mark Wooding
1087 dnl
1088 dnl Synopsis:   mdw_CURSES
1089 dnl
1090 dnl Arguments:  ---
1091 dnl
1092 dnl Use:        Searches for a `curses' library (one of `ncurses' or
1093 dnl             `curses') using mdw_CHECK_MANYLIBS.  If one is found, the
1094 dnl             preprocessor macro HAVE_CURSES is defined, and a search is
1095 dnl             made for a `curses' header file (one of <ncurses.h>,
1096 dnl             <ncurses/ncurses.h> or <curses.h>) using AC_CHECK_HEADERS
1097 dnl             and the appropriate preprocessor symbol is defined.
1098 dnl             Finally, a check is made for the function `wresize' using
1099 dnl             AC_CHECK_FUNCS.
1100
1101 AC_DEFUN(mdw_CURSES,
1102 [mdw_CHECK_MANYLIBS(newwin, ncurses curses, AC_DEFINE(HAVE_CURSES))
1103 if test $mdw_cv_lib_newwin != no; then
1104 AC_CHECK_HEADERS([ncurses.h ncurses/ncurses.h curses.h], [break])
1105 if test "$ac_cv_header_ncurses_h" = "no" &&
1106    test "$ac_cv_header_ncurses_ncurses_h" = "no" &&
1107    test "$ac_cv_header_curses_h" = "no"; then
1108      AC_MSG_WARN([couldn't find a \`curses' header.  Assuming \`curses.h'.])
1109      AC_DEFINE(HAVE_CURSES_H)
1110 fi
1111 AC_CHECK_FUNCS(wresize)
1112 fi])
1113
1114 dnl --- *@-mdw_TYPE_SSIZE_T-@* ---
1115 dnl
1116 dnl Author:     Mark Wooding
1117 dnl
1118 dnl Synopsis:   mdw_TYPE_SSIZE_T
1119 dnl
1120 dnl Arguments:  ---
1121 dnl
1122 dnl Use:        Checks whether the Posix type `ssize_t' is defined.  If not,
1123 dnl             it defaults to `int'.
1124
1125 AC_DEFUN(mdw_TYPE_SSIZE_T,
1126 [AC_REQUIRE([AC_HEADER_STDC])
1127 AC_CACHE_CHECK(for ssize_t, mdw_cv_ssize_t,
1128 [AC_EGREP_CPP(ssize_t,
1129 [#include <sys/types.h>
1130 #if HAVE_UNISTD_H
1131 #include <unistd.h>
1132 #endif
1133 #if STDC_HEADERS
1134 #include <stdlib.h>
1135 #include <stddef.h>
1136 #endif],
1137 [mdw_cv_ssize_t=yes], [mdw_cv_ssize_t=no])])
1138 if test $mdw_cv_ssize_t = no; then
1139   AC_DEFINE(ssize_t, int)
1140 fi])
1141
1142 dnl --- *@-mdw_DECL_ENVIRON-@* ---
1143 dnl
1144 dnl Author:     Mark Wooding
1145 dnl
1146 dnl Synopsis:   mdw_DECL_ENVIRON
1147 dnl
1148 dnl Arguments:  ---
1149 dnl
1150 dnl Use:        Searches for a declaration of the global `environ' variable.
1151 dnl             If one is found in one of the `usual' places, DECL_ENVIRON
1152 dnl             is defined as a preprocessor symbol.
1153
1154 AC_DEFUN(mdw_DECL_ENVIRON,
1155 [AC_CACHE_CHECK([for declaration of \`environ'], mdw_cv_environ,
1156 [AC_EGREP_CPP(environ,
1157 [#include <sys/types.h>
1158 #if HAVE_UNISTD_H
1159 #include <unistd.h>
1160 #endif
1161 #if STDC_HEADERS
1162 #include <stdlib.h>
1163 #include <stddef.h>
1164 #endif], [mdw_cv_environ=yes], [mdw_cv_environ=no])])
1165 if test $mdw_cv_environ = yes; then
1166   AC_DEFINE(DECL_ENVIRON)
1167 fi])
1168
1169 dnl --- *@-mdw_CHECK_MANYLIBS-@* ---
1170 dnl
1171 dnl Author:     Mark Wooding
1172 dnl
1173 dnl Synopsis:   mdw_CHECK_MANYLIBS(FUNC, LIBS, [IF-FOUND], [IF-NOT-FOUND])
1174 dnl
1175 dnl Arguments:  FUNC = a function to try to find
1176 dnl             LIBS = a whitespace-separated list of libraries to search
1177 dnl             IF-FOUND = what to do when the function is found
1178 dnl             IF-NOT-FOUND = what to do when the function isn't found
1179 dnl
1180 dnl Use:        Searches for a library which defines FUNC.  It first tries
1181 dnl             without any libraries; then it tries each library specified
1182 dnl             in LIBS in turn.  If it finds a match, it adds the
1183 dnl             appropriate library to `LIBS'.
1184 dnl
1185 dnl             This is particularly handy under DIREIX: if you link with
1186 dnl             `-lnsl' then you get non-NIS-aware versions of getpwnam and
1187 dnl             so on, which is clearly a Bad Thing.
1188
1189 AC_DEFUN(mdw_CHECK_MANYLIBS,
1190 [AC_CACHE_CHECK([for library containing $1], [mdw_cv_lib_$1],
1191 [mdw_save_LIBS="$LIBS"
1192 mdw_cv_lib_$1="no"
1193 AC_TRY_LINK(,[$1()], [mdw_cv_lib_$1="none required"])
1194 test "$mdw_cv_lib_$1" = "no" && for i in $2; do
1195 LIBS="-l$i $mdw_save_LIBS"
1196 AC_TRY_LINK(,[$1()],
1197 [mdw_cv_lib_$1="-l$i"
1198 break])
1199 done
1200 LIBS="$mdw_save_LIBS"])
1201 if test "$mdw_cv_lib_$1" != "no"; then
1202   test "$mdw_cv_lib_$1" = "none required" || LIBS="$mdw_cv_lib_$1 $LIBS"
1203   $3
1204 else :
1205   $4
1206 fi])
1207
1208 dnl --- *@-mdw__PERL_VERSION-@* ---
1209 dnl
1210 dnl AC_DEFUN relies on `[', `]' being quotes, so I have to drop down a level.
1211
1212 changequote(<<, >>)
1213 define(mdw__PERL_VERSION, <<$1 -e 'exit ($] < $2);' >&5 2>&5>>)
1214 changequote([, ])
1215
1216 dnl --- *@-mdw_PROG_PERL-@* ---
1217 dnl
1218 dnl Author:     Mark Wooding
1219 dnl
1220 dnl Synopsis:   mdw_PROG_PERL(VERSION, [IF-FOUND], [IF-NOT-FOUND])
1221 dnl
1222 dnl Arguments:  VERSION = version number of Perl required
1223 dnl             IF-FOUND = what to do if it's found
1224 dnl             IF-NOT-FOUND = what to do if it isn't
1225 dnl
1226 dnl Use:        Attempts to find a working version of Perl with a late
1227 dnl             enough version number.  It supplies an option `--with-perl'
1228 dnl             to allow the user to provide a Perl interpreter.  If one
1229 dnl             isn't provided explicitly, it searches for `perl' and `perl5'
1230 dnl             in the current PATH, asking them whether they have a late
1231 dnl             enough version number.  The path of the working Perl is
1232 dnl             put into the `PERL' environment variable; `AC_SUBST' is used
1233 dnl             to substitute its value into Perl scripts.  If there is no
1234 dnl             Perl to be found, the value of `PERL' is set to be `none'.
1235
1236 AC_DEFUN(mdw_PROG_PERL,
1237 [AC_ARG_WITH([perl],
1238 [  --with-perl=PERL       specify path to Perl version $1 or newer],
1239 [PERL="$withval"],
1240 if test -z "$PERL"; then
1241 [AC_CACHE_CHECK([for Perl version $1 or later], mdw_cv_prog_perl,
1242 [mdw_cv_prog_perl="none"
1243 for p in `echo "$PATH:/usr/local/bin" | tr ":" " "`; do
1244   case $p in /*) ;; *) p=`pwd`/$p ;; esac
1245   if mdw__PERL_VERSION(["$p/perl"], $1); then
1246     mdw_cv_prog_perl="$p/perl"
1247     break
1248   fi
1249   if mdw__PERL_VERSION(["$p/perl5"], $1); then
1250     mdw_cv_prog_perl="$p/perl5"
1251     break
1252   fi
1253 done])
1254 PERL="$mdw_cv_prog_perl"])
1255 fi
1256
1257 AC_SUBST(PERL)dnl
1258 if test "$PERL" = "none"; then :
1259   $3
1260 else :
1261   $2
1262 fi])
1263
1264 dnl --- *@-mdw_CHECK_PERL-@* ---
1265 dnl
1266 dnl Author:     Mark Wooding
1267 dnl
1268 dnl Synopsis:   mdw_CHECK_PERL(VERSION)
1269 dnl
1270 dnl Arguments:  VERSION = version number of Perl required
1271 dnl
1272 dnl Use:        Verifies that the Perl interpreter in the `PERL' shell
1273 dnl             variable actually works and is of the right version.  If it's
1274 dnl             not, an error is raised and configuration is aborted.
1275
1276 AC_DEFUN(mdw_CHECK_PERL,
1277 [mdw_REQUIRE([mdw_PROG_PERL], [$1])
1278 AC_MSG_CHECKING([whether Perl ($PERL) works])
1279 if test "$PERL" != "none" && mdw__PERL_VERSION("$PERL", $1); then
1280   AC_MSG_RESULT([yes])
1281 else
1282   AC_MSG_RESULT([no])
1283   AC_MSG_ERROR([Perl version $1 or newer not found.
1284 If you have a recent enough Perl, and I just failed to find it, try using
1285 the --with-perl=PERL option to give me an explicit pathname.])
1286 fi])
1287
1288 dnl --- *@-mdw_PERLLIB_CHECK-@* ---
1289 dnl
1290 dnl Author:     Mark Wooding
1291 dnl
1292 dnl Synopsis:   mdw_PERLLIB_CHECK(LIBRARY)
1293 dnl
1294 dnl Arguments:  LIBRARY = name of a Perl library to check for
1295 dnl
1296 dnl Use:        Ensures that a Perl script can `use LIBRARY;'.  If it can,
1297 dnl             all's well and good; if it can't, `LIBRARY.pm' is added to
1298 dnl             the variable `NEEDED_PERLLIBS' and a line which adds
1299 dnl             `pkgdatadir' to Perl's `@INC' array is placed in the
1300 dnl             variable `INC_PERLLIBS'; `AC_SUBST' is called for both of
1301 dnl             these variables.  It's expected that `NEEDED_PERLLIBS' will
1302 dnl             be used in the `Makefile.in' to decide which versions from
1303 dnl             the distribution need installing.
1304 dnl
1305 dnl             This macro isn't terribly useful in the general case.  It
1306 dnl             Also implicitly assumes that `$PERL' is Perl 5 or later.
1307
1308 AC_DEFUN(mdw__PERLLIB_INIT,
1309 [AC_SUBST(INC_PERLLIBS)dnl
1310 AC_SUBST(NEEDED_PERLLIBS)dnl
1311 ])
1312
1313 AC_DEFUN(mdw_PERLLIB_CHECK,
1314 [AC_REQUIRE([mdw__PERLLIB_INIT])
1315 mdw_REQUIRE([mdw_CHECK_PERL], 5)
1316 AC_CACHE_CHECK([for Perl library $1], mdw_cv_perllib_$1,
1317 [if $PERL -e 'use $1;' >&5 2>&5; then
1318   mdw_cv_perllib_$1="yes"
1319 else
1320   mdw_cv_perllib_$1="no"
1321 fi])
1322
1323 if test "$mdw_cv_perllib_$1" = "no"; then
1324   NEEDED_PERLLIBS="$NEEDED_PERLLIBS $1.pm"
1325
1326   # --- Deal with autoconf lossage ---
1327   #
1328   # It doesn't want to define `prefix' until rather later on, so I have
1329   # to bodge it here.
1330
1331   if test -z "$INC_PERLLIBS"; then
1332     mdw_old_prefix="$prefix"
1333     test "$prefix" = "NONE" && prefix="$ac_default_prefix";
1334     INC_PERLLIBS="BEGIN { push @INC, \"`eval echo $datadir/$PACKAGE`\"; }"
1335     prefix="$mdw_old_prefix";
1336   fi
1337 fi])
1338
1339 dnl --- *@-mdw_GCC_FLAGS-@* ---
1340 dnl
1341 dnl Author:     Mark Wooding
1342 dnl
1343 dnl Synopsis:   mdw_GCC_FLAGS([FLAGS], [CFLAGS], [C++FLAGS])
1344 dnl
1345 dnl Arguments:  FLAGS = GCC compiler flags to add (default is
1346 dnl                     `-pedantic -Wall')
1347 dnl             CFLAGS = GCC C compiler flags to add (default is empty)
1348 dnl             C++FLAGS = GCC C++ compiler flags to add (default is
1349 dnl                     `-fhandle-exceptions').
1350 dnl
1351 dnl Use:        If the C compiler is GCC, add the compiler flags.
1352
1353 AC_DEFUN(mdw_GCC_FLAGS,
1354 [if test "$GCC" = "yes"; then
1355   CFLAGS="$CFLAGS ifelse([$1], [], [-pedantic -Wall], [$1])"
1356   CFLAGS="$CFLAGS ifelse([$2], [], [], [$2])"
1357 fi
1358 if test "$GXX" = "yes"; then
1359   CXXFLAGS="$CXXFLAGS ifelse([$1], [], [-pedantic -Wall], [$1])"
1360   CXXFLAGS="$CXXFLAGS ifelse([$3], [], [-fhandle-exceptions], [$3])"
1361 fi])
1362
1363 dnl *@-mdw_MLIB-@*
1364 dnl
1365 dnl Author:     Mark Wooding
1366 dnl
1367 dnl Synopsis:   mdw_MLIB(VERSION, IF-FOUND, IF-NOT-FOUND
1368 dnl
1369 dnl Arguments:  VERSION = version of library required
1370 dnl             IF-FOUND = what to do if found
1371 dnl             IF-NOT-FOUND = what to do if not found
1372 dnl
1373 dnl Use:        Configures an mLib client program.  The default
1374 dnl             version is 1.0.0pre0; the default action is to add
1375 dnl             everything to the CFLAGS and LIBS variables, and complain
1376 dnl             if the library couldn't be found.
1377 dnl
1378 dnl             The variable MLIB_VERSION contains the version number of
1379 dnl             the library; MLIB_CFLAGS is the C compiler flags required
1380 dnl             and MLIB_LIBS is the linker flags.
1381
1382 AC_DEFUN([mdw_MLIB],
1383 [AC_MSG_CHECKING([for mLib library])
1384 if mLib-config --check $1 >/dev/null 2>&1; then
1385   MLIB_VERSION=`mLib-config --version`
1386   MLIB_CFLAGS=`mLib-config --cflags`
1387   MLIB_LIBS=`mLib-config --libs`
1388   AC_SUBST(MLIB_VERSION) AC_SUBST(MLIB_CFLAGS) AC_SUBST(MLIB_LIBS)
1389   ifelse([$2], [],
1390   [CFLAGS="$CFLAGS $MLIB_CFLAGS"
1391   LIBS="$MLIB_LIBS $LIBS"],
1392   $2)
1393   AC_MSG_RESULT([$MLIB_VERSION])
1394 else
1395   ifelse([$3], [],
1396   AC_MSG_ERROR([mLib library not found or too old.]),
1397   $3)
1398   AC_MSG_RESULT([not found])
1399 fi])
1400
1401 dnl *@-mdw_MGLIB-@*
1402 dnl
1403 dnl Author:     Mark Wooding
1404 dnl
1405 dnl Synopsis:   mdw_MGLIB(VERSION, IF-FOUND, IF-NOT-FOUND
1406 dnl
1407 dnl Arguments:  VERSION = version of library required
1408 dnl             IF-FOUND = what to do if found
1409 dnl             IF-NOT-FOUND = what to do if not found
1410 dnl
1411 dnl Use:        Configures an mgLib client program.  The default
1412 dnl             version is 1.0.0pre0; the default action is to add
1413 dnl             everything to the CFLAGS and LIBS variables, and complain
1414 dnl             if the library couldn't be found.
1415 dnl
1416 dnl             The variable MGLIB_VERSION contains the version number of
1417 dnl             the library; MGLIB_CFLAGS is the C compiler flags required
1418 dnl             and MGLIB_LIBS is the linker flags.
1419
1420 AC_DEFUN([mdw_MGLIB],
1421 [mdw_REQUIRE([mdw_MGLIB], [1.6.0])
1422 AC_MSG_CHECKING([for mgLib library])
1423 if mgLib-config --check $1 >/dev/null 2>&1; then
1424   MGLIB_VERSION=`mgLib-config --version`
1425   MGLIB_CFLAGS=`mgLib-config --cflags`
1426   MGLIB_LIBS=`mgLib-config --libs`
1427   AC_SUBST(MGLIB_VERSION) AC_SUBST(MGLIB_CFLAGS) AC_SUBST(MGLIB_LIBS)
1428   ifelse([$2], [],
1429   [CFLAGS="$CFLAGS $MGLIB_CFLAGS"
1430   LIBS="$MGLIB_LIBS $LIBS"],
1431   $2)
1432   AC_MSG_RESULT([$MGLIB_VERSION])
1433 else
1434   ifelse([$3], [],
1435   AC_MSG_ERROR([mgLib library not found or too old.]),
1436   $3)
1437   AC_MSG_RESULT([not found])
1438 fi])
1439
1440 dnl *@-mdw_MXD-@*
1441 dnl
1442 dnl Author:     Mark Wooding
1443 dnl
1444 dnl Synopsis:   mdw_MXD(VERSION, IF-FOUND, IF-NOT-FOUND
1445 dnl
1446 dnl Arguments:  VERSION = version of library required
1447 dnl             IF-FOUND = what to do if found
1448 dnl             IF-NOT-FOUND = what to do if not found
1449 dnl
1450 dnl Use:        Configures an MXD client program.  The default
1451 dnl             version is 1.0.0pre0; the default action is to add
1452 dnl             everything to the CFLAGS and LIBS variables, and complain
1453 dnl             if the library couldn't be found.
1454 dnl
1455 dnl             The variable MXD_VERSION contains the version number of
1456 dnl             the library; MXD_CFLAGS is the C compiler flags required
1457 dnl             and MXD_LIBS is the linker flags.
1458
1459 AC_DEFUN([mdw_MXD],
1460 [AC_MSG_CHECKING([for MXD library])
1461 if mxd-config --check $1 >/dev/null 2>&1; then
1462   MXD_VERSION=`mxd-config --version`
1463   MXD_CFLAGS=`mxd-config --cflags`
1464   MXD_LIBS=`mxd-config --libs`
1465   AC_SUBST(MXD_VERSION) AC_SUBST(MXD_CFLAGS) AC_SUBST(MXD_LIBS)
1466   ifelse([$2], [],
1467   [CFLAGS="$CFLAGS $MXD_CFLAGS"
1468   LIBS="$MXD_LIBS $LIBS"],
1469   $2)
1470   AC_MSG_RESULT([$MXD_VERSION])
1471 else
1472   ifelse([$3], [],
1473   AC_MSG_ERROR([MXD library not found or too old.]),
1474   $3)
1475   AC_MSG_RESULT([not found])
1476 fi])
1477
1478 dnl *@-mdw_CATACOMB-@*
1479 dnl
1480 dnl Author:     Mark Wooding
1481 dnl
1482 dnl Synopsis:   mdw_CATACOMB([VERSION], [IF-FOUND], [IF-NOT-FOUND])
1483 dnl
1484 dnl Arguments:  VERSION = version of Catacomb required
1485 dnl             IF-FOUND = what to do if found
1486 dnl             IF-NOT-FOUND = what to do if not found
1487 dnl
1488 dnl Use:        Configures the program as a Catacomb client.  The default
1489 dnl             version is 1.0.0pre0; the default action is to add
1490 dnl             everything to the CFLAGS and LIBS variables, and complain
1491 dnl             if the library couldn't be found.
1492 dnl
1493 dnl             The variable CATACOMB_VERSION contains the version number of
1494 dnl             the library; CATACOMB_CFLAGS is the C compiler flags required
1495 dnl             and CATACOMB_LIBS is the linker flags.
1496
1497 AC_DEFUN([mdw_CATACOMB],
1498 [mdw_REQUIRE([mdw_MLIB], [1.6.0])
1499 AC_MSG_CHECKING([for Catacomb library])
1500 if catacomb-config --check $1 >/dev/null 2>&1; then
1501   CATACOMB_VERSION=`catacomb-config --version`
1502   CATACOMB_CFLAGS=`catacomb-config --cflags`
1503   CATACOMB_LIBS=`catacomb-config --libs`
1504   AC_SUBST(CATACOMB_VERSION)
1505   AC_SUBST(CATACOMB_CFLAGS) AC_SUBST(CATACOMB_LIBS)
1506   ifelse([$2], [],
1507   [CFLAGS="$CFLAGS $CATACOMB_CFLAGS"
1508   LIBS="$CATACOMB_LIBS $LIBS"],
1509   $2)
1510   AC_MSG_RESULT([$CATACOMB_VERSION])
1511 else
1512   ifelse([$3], [],
1513   AC_MSG_ERROR([Catacomb library not found or too old.]),
1514   $3)
1515   AC_MSG_RESULT([not found])
1516 fi])
1517
1518 dnl --- *@-mdw_OPT_NDEBUG-@* ---
1519 dnl
1520 dnl Author:     Mark Wooding
1521 dnl
1522 dnl Synopsis:   mdw_OPT_NDEBUG
1523 dnl
1524 dnl Arguments:  ---
1525 dnl
1526 dnl Use:        Turns off the `NDEBUG' flag if the user wants to do
1527 dnl             debugging.
1528
1529 AC_DEFUN(mdw_OPT_NDEBUG,
1530 [AC_ARG_ENABLE(debugging,
1531 [  --enable-debugging      spews vast swathes of useless information],
1532 [if test "$enableval" = "no"; then
1533   AC_DEFINE(NDEBUG, 1)
1534 fi],
1535 [AC_DEFINE(NDEBUG, 1)])])
1536
1537 dnl --- *@-mdw_OPT_EFENCE-@* ---
1538 dnl
1539 dnl Author:     Mark Wooding
1540 dnl
1541 dnl Synopsis:   mdw_OPT_EFENCE
1542 dnl
1543 dnl Arguments:  ---
1544 dnl
1545 dnl Use:        Links with the Electric Fence library.
1546
1547 AC_DEFUN(mdw_OPT_EFENCE,
1548 [AC_ARG_WITH(electric-fence,
1549 [  --with-electric-fence   link programs with Electric Fence],
1550 [if test "$withval" = "yes"; then
1551   AC_CHECK_LIB(efence, malloc)
1552 fi])])
1553
1554 dnl --- *@-mdw_OPT_mLib_DEBUG-@* ---
1555 dnl
1556 dnl Author:     Mark Wooding
1557 dnl
1558 dnl Synopsis:   mdw_OPT_mLib_DEBUG(PROGRAM)
1559 dnl
1560 dnl Arguments:  ---
1561 dnl
1562 dnl Use:        Provides options for mLib debugging.  In particular, the
1563 dnl             following are defined:
1564 dnl
1565 dnl               --enable-tracing        turns off the NTRACE variable
1566 dnl               --enable-track          turns on malloc tracking
1567 dnl               --enable-blame-PROGRAM  tracks malloc contexts in PROGRAM
1568 dnl
1569 dnl             There must be  a separate `blame' option, so that the various
1570 dnl             blame options work properly.
1571
1572 AC_DEFUN(mdw_OPT_mLib_DEBUG,
1573 [mdw_OPT_NDEBUG
1574 mdw_OPT_EFENCE
1575
1576 AC_ARG_ENABLE(tracing,
1577 [  --enable-tracing        enable output of tracing information],
1578 [if test "$enableval" = "no"; then
1579   AC_DEFINE(NTRACE, 1)
1580 fi],
1581 [AC_DEFINE(NTRACE, 1)])
1582
1583 AC_ARG_ENABLE(track,
1584 [  --enable-track          enable tracking of malloc and free],
1585 [AC_DEFINE(TRACK_ENABLE, 1)])
1586
1587 AC_ARG_ENABLE(blame-$1,
1588 [  --enable-blame-$1
1589                           track malloc contexts while in $1],
1590 [AC_DEFINE(TRACK_BLAME, 1)])])
1591
1592 dnl----- That's all, folks --------------------------------- *@--GLOB-END--@*