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

   1 dnl -*-fundamental-*-                                     *@--GLOB-HEADER--@*
   2 dnl
   3 dnl $Id: aclocal.glob,v 1.16 2003/04/23 12:47:22 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 1.16  2003/04/23 12:47:22  mdw
  32 dnl Add mdw_MANEXT.
  33 dnl
  34 dnl Revision 1.15  2002/02/19 22:50:24  mdw
  35 dnl Fix spelling.  Add new macro which works out where to put TeX files.
  36 dnl
  37 dnl Revision 1.14  2002/02/03 19:15:15  mdw
  38 dnl Add SDL-finding equipment.  Quote some macro names which need it.  Add
  39 dnl long-overdue macros for expanding configured paths (and do it
  40 dnl properly).
  41 dnl
  42 dnl Revision 1.13  2001/02/23 09:07:24  mdw
  43 dnl Restore temporary variable on exit.
  44 dnl
  45 dnl Revision 1.12  2001/02/04 01:18:52  mdw
  46 dnl Overhaul the mLib debugging options.
  47 dnl
  48 dnl Revision 1.11  2001/01/20 12:03:08  mdw
  49 dnl Remove redundant stuff.
  50 dnl
  51 dnl Revision 1.10  2000/10/14 16:32:15  mdw
  52 dnl Fixes from upstream.
  53 dnl
  54 dnl Revision 1.9  2000/08/15 21:37:49  mdw
  55 dnl New initialization macro for libraries, and a new base client macro for
  56 dnl finding libraries with an appropriate version.
  57 dnl
  58 dnl Revision 1.8  1999/11/26 01:23:17  mdw
  59 dnl And support for MXD (not yet released).
  60 dnl
  61 dnl Revision 1.7  1999/11/11 20:03:58  mdw
  62 dnl Add support for mgLib too.
  63 dnl
  64 dnl Revision 1.6  1999/11/11 17:49:33  mdw
  65 dnl New macros for configuring clients of mLib and Catacomb.
  66 dnl
  67 dnl Revision 1.5  1999/07/27 18:27:37  mdw
  68 dnl Fix typo in header line for mdw_DECL_ENVIRON.
  69 dnl
  70 dnl Revision 1.4  1999/07/26 23:44:32  mdw
  71 dnl Reorder and tidy documentation.
  72 dnl
  73 dnl Revision 1.3  1999/07/17 10:27:44  mdw
  74 dnl More useful macros added.
  75 dnl
  76 dnl Revision 1.2  1999/05/13 22:57:23  mdw
  77 dnl Change `-ise' to `-ize' throughout.
  78 dnl
  79 dnl Revision 1.1.1.1  1999/05/05 19:23:47  mdw
  80 dnl New import.  The old CVS repository was lost in a disk disaster.
  81 dnl
  82
  83 dnl----- Common files distribution --------------------------- *@--NOTICE--@*
  84 dnl
  85 dnl $Id: aclocal.glob,v 1.16 2003/04/23 12:47:22 mdw Exp $
  86
  87 dnl --- *@-AM_PROG_CC_STDC-@* ---
  88 dnl
  89 dnl Author:     Franc,ois Pinard
  90 dnl
  91 dnl Synopsis:   AM_PROG_CC_STDC
  92 dnl
  93 dnl Arguments:  ---
  94 dnl
  95 dnl Use:        If the C compiler in not in ANSI C mode by default, try to
  96 dnl             add an option to output variable `CC' to make it so.  This
  97 dnl             macro tries various options that select ANSI C on some system
  98 dnl             or another.  It considers the compiler to be in ANSI C mode
  99 dnl             if it defines `__STDC__' to 1 and handles function prototypes
 100 dnl             correctly.
 101 dnl
 102 dnl             If you use this macro, you should check after calling it
 103 dnl             whether the C compiler has been set to accept ANSI C; if not,
 104 dnl             the shell variable `ac_cv_prog_cc_stdc' is set to `no'.  If
 105 dnl             you wrote your source code in ANSI C, you can make an
 106 dnl             un-ANSIfied copy of it by using the program `ansi2knr', which
 107 dnl             comes with Ghostscript.
 108 dnl
 109 dnl                                     (documentation by Franc,ois Pinard)
 110
 111 AC_DEFUN(AM_PROG_CC_STDC,
 112 [AC_REQUIRE([AC_PROG_CC])
 113 AC_BEFORE([$0], [AC_C_INLINE])
 114 AC_BEFORE([$0], [AC_C_CONST])
 115 AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C)
 116 AC_CACHE_VAL(am_cv_prog_cc_stdc,
 117 [am_cv_prog_cc_stdc=no
 118 ac_save_CC="$CC"
 119 # Don't try gcc -ansi; that turns off useful extensions and
 120 # breaks some systems' header files.
 121 # AIX                   -qlanglvl=ansi
 122 # Ultrix and OSF/1      -std1
 123 # HP-UX                 -Aa -D_HPUX_SOURCE
 124 # SVR4                  -Xc -D__EXTENSIONS__
 125 for ac_arg in "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 126 do
 127   CC="$ac_save_CC $ac_arg"
 128   AC_TRY_COMPILE(
 129 [#if !defined(__STDC__) || __STDC__ != 1
 130 choke me
 131 #endif
 132 /* DYNIX/ptx V4.1.3 can't compile sys/stat.h with -Xc -D__EXTENSIONS__. */
 133 #ifdef _SEQUENT_
 134 # include <sys/types.h>
 135 # include <sys/stat.h>
 136 #endif
 137 ], [
 138 int test (int i, double x);
 139 struct s1 {int (*f) (int a);};
 140 struct s2 {int (*f) (double a);};],
 141 [am_cv_prog_cc_stdc="$ac_arg"; break])
 142 done
 143 CC="$ac_save_CC"
 144 ])
 145 if test -z "$am_cv_prog_cc_stdc"; then
 146   AC_MSG_RESULT([none needed])
 147 else
 148   AC_MSG_RESULT($am_cv_prog_cc_stdc)
 149 fi
 150 case "x$am_cv_prog_cc_stdc" in
 151   x|xno) ;;
 152   *) CC="$CC $am_cv_prog_cc_stdc" ;;
 153 esac
 154 ])
 155
 156 dnl----- AutoMake macros ------------------------------------- *@--IGNORE--@*
 157
 158 dnl --- *@-AM_CONDITIONAL-@* ---
 159 dnl
 160 dnl Author:     Unknown
 161 dnl
 162 dnl Synopsis:   AM_CONDITIONAL(NAME, TEST)
 163 dnl
 164 dnl Arguments:  NAME = name of the conditional
 165 dnl             TEST = a shell list to execute
 166 dnl
 167 dnl Use:        Allows conditional sections in Makefiles.
 168
 169 AC_DEFUN(AM_CONDITIONAL,
 170 [AC_SUBST($1_TRUE)
 171 AC_SUBST($1_FALSE)
 172 if $2; then
 173   $1_TRUE=
 174   $1_FALSE='#'
 175 else
 176   $1_TRUE='#'
 177   $1_FALSE=
 178 fi])
 179
 180 dnl --- *@-AM_CYGWIN32-@* ---
 181 dnl
 182 dnl Author:     Cygnus (I guess)
 183 dnl
 184 dnl Synopsis:   AM_CYGWIN32
 185 dnl
 186 dnl Arguments:  ---
 187 dnl
 188 dnl Use:        Check to see if we're running under Cygwin32, without using
 189 dnl             AC_CANONICAL_*.  If so, set output variable EXEEXT to
 190 dnl             ".exe".  Otherwise set it to "".
 191
 192 dnl AM_CYGWIN32()
 193 dnl You might think we can do this by checking for a cygwin32-specific
 194 dnl cpp define.  We can't, because cross-compilers that target
 195 dnl cygwin32 don't use the .exe suffix.  I don't know why.
 196 AC_DEFUN(AM_CYGWIN32,
 197 [AC_CACHE_CHECK(for Cygwin32 environment, am_cv_cygwin32,
 198 [cat > conftest.$ac_ext << 'EOF'
 199 int main () {
 200 /* Nothing.  */
 201 return 0; }
 202 EOF
 203 if AC_TRY_EVAL(ac_link) && test -s conftest.exe; then
 204    am_cv_cygwin32=yes
 205 else
 206    am_cv_cygwin32=no
 207 fi
 208 rm -f conftest*])
 209 EXEEXT=
 210 test "$am_cv_cygwin32" = yes && EXEEXT=.exe
 211 AC_SUBST(EXEEXT)])
 212
 213 dnl --- *@-AM_WITH_DMALLOC-@* ---
 214 dnl
 215 dnl Author:     Franc,ois Pinard
 216 dnl
 217 dnl Synopsis:   AM_WITH_DMALLOC
 218 dnl
 219 dnl Arguments:  ---
 220 dnl
 221 dnl Use:        Links with `-dmalloc' if told to by the user.
 222
 223 ## ----------------------------------- ##
 224 ## Check if --with-dmalloc was given.  ##
 225 ## From Franc,ois Pinard               ##
 226 ## ----------------------------------- ##
 227
 228 # serial 1
 229
 230 AC_DEFUN(AM_WITH_DMALLOC,
 231 [AC_MSG_CHECKING(if malloc debugging is wanted)
 232 AC_ARG_WITH(dmalloc,
 233 [  --with-dmalloc          use dmalloc, as in
 234                           ftp://ftp.letters.com/src/dmalloc/dmalloc.tar.gz],
 235 [if test "$withval" = yes; then
 236   AC_MSG_RESULT(yes)
 237   AC_DEFINE(WITH_DMALLOC)
 238   LIBS="$LIBS -ldmalloc"
 239   LDFLAGS="$LDFLAGS -g"
 240 else
 241   AC_MSG_RESULT(no)
 242 fi], [AC_MSG_RESULT(no)])
 243 ])
 244
 245 dnl --- *@-AM_FUNC_ERROR_AT_LINE-@* ---
 246 dnl
 247 dnl Author:     Jim Meyering
 248 dnl
 249 dnl Synopsis:   AM_FUNC_ERROR_AT_LINE
 250 dnl
 251 dnl Arguments:  ---
 252 dnl
 253 dnl Use:        Use this if you use the GNU error.[ch].
 254
 255 dnl FIXME: Migrate into libit
 256
 257 AC_DEFUN(AM_FUNC_ERROR_AT_LINE,
 258 [AC_CACHE_CHECK([for error_at_line], am_cv_lib_error_at_line,
 259  [AC_TRY_LINK([],[error_at_line(0, 0, "", 0, "");],
 260               am_cv_lib_error_at_line=yes,
 261               am_cv_lib_error_at_line=no)])
 262  if test $am_cv_lib_error_at_line = no; then
 263    LIBOBJS="$LIBOBJS error.o"
 264  fi
 265  AC_SUBST(LIBOBJS)dnl
 266 ])
 267
 268 dnl --- *@-AM_INIT_GUILE_MODULE-@* ---
 269 dnl
 270 dnl Author:     Unknown
 271 dnl
 272 dnl Synopsis:   AM_INIT_GUILE_MODULE(MODNAME)
 273 dnl
 274 dnl Arguments:  MODNAME = value to initialize `module' variable with
 275 dnl
 276 dnl Use:        This macro will automatically get the guile version from the
 277 dnl             top-level srcdir, and will initialize automake.  It also
 278 dnl             defines the `module' variable.
 279
 280 AC_DEFUN([AM_INIT_GUILE_MODULE],[
 281 . $srcdir/../GUILE-VERSION
 282 AM_INIT_AUTOMAKE($PACKAGE, $VERSION)
 283 AC_CONFIG_AUX_DIR(..)
 284 module=[$1]
 285 AC_SUBST(module)])
 286
 287 dnl --- *@-AM_CONFIG_HEADER-@* ---
 288 dnl
 289 dnl Author:     Unknown
 290 dnl
 291 dnl Synopsis:   AM_CONFIG_HEADER(HEADER ...)
 292 dnl
 293 dnl Arguments:  HEADER = a header spec, as for AC_CONFIG_HEADER
 294 dnl
 295 dnl Use:        Like AC_CONFIG_HEADER, but automatically create stamp file.
 296
 297 AC_DEFUN(AM_CONFIG_HEADER,
 298 [AC_PREREQ([2.12])
 299 AC_CONFIG_HEADER([$1])
 300 dnl When config.status generates a header, we must update the stamp-h file.
 301 dnl This file resides in the same directory as the config header
 302 dnl that is generated.  We must strip everything past the first ":",
 303 dnl and everything past the last "/".
 304 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
 305 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
 306 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/
 307 \)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
 308 <<am_indx=1
 309 for am_file in <<$1>>; do
 310   case " <<$>>CONFIG_HEADERS " in
 311   *" <<$>>am_file "*<<)>>
 312     echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
 313     ;;
 314   esac
 315   am_indx=`expr "<<$>>am_indx" + 1`
 316 done<<>>dnl>>)
 317 changequote([,]))])
 318
 319 dnl --- *@-AM_INIT_AUTOMAKE-@*
 320 dnl
 321 dnl Author:     Unknown
 322 dnl
 323 dnl Synopsis:   AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 324 dnl
 325 dnl Arguments:  PACKAGE = package name
 326 dnl             VERSION = version number
 327 dnl             NO-DEFINE = if set, don't define package and version number
 328 dnl
 329 dnl Use:        Do all the work for Automake.  This macro actually does too
 330 dnl             much -- some checks are only needed if your package does
 331 dnl             certain things.  But this isn't really a big deal.
 332
 333 # serial 1
 334
 335 AC_DEFUN(AM_INIT_AUTOMAKE,
 336 [AC_REQUIRE([AC_PROG_INSTALL])
 337 PACKAGE=[$1]
 338 AC_SUBST(PACKAGE)
 339 VERSION=[$2]
 340 AC_SUBST(VERSION)
 341 dnl test to see if srcdir already configured
 342 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
 343   AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 344 fi
 345 ifelse([$3],,
 346 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE")
 347 AC_DEFINE_UNQUOTED(VERSION, "$VERSION"))
 348 AC_REQUIRE([AM_SANITY_CHECK])
 349 AC_REQUIRE([AC_ARG_PROGRAM])
 350 dnl FIXME This is truly gross.
 351 missing_dir=`cd $ac_aux_dir && pwd`
 352 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
 353 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
 354 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
 355 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
 356 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
 357 AC_REQUIRE([AC_PROG_MAKE_SET])])
 358
 359 dnl --- *@-AM_PROG_LEX-@* ---
 360 dnl
 361 dnl Author:     Alexandre Oliva
 362 dnl
 363 dnl Synopsis:   AM_PROG_LEX
 364 dnl
 365 dnl Arguments:  ---
 366 dnl
 367 dnl Use:        Replacement for AC_PROG_LEX and AC_DECL_YYTEXT
 368
 369 dnl AM_PROG_LEX
 370 dnl Look for flex, lex or missing, then run AC_PROG_LEX and AC_DECL_YYTEXT
 371 AC_DEFUN(AM_PROG_LEX,
 372 [missing_dir=ifelse([$1],,`cd $ac_aux_dir && pwd`,$1)
 373 AC_CHECK_PROGS(LEX, flex lex, "$missing_dir/missing flex")
 374 AC_PROG_LEX
 375 AC_DECL_YYTEXT])
 376
 377 dnl --- *@-AM_PROG_LIBTOOL-@* ---
 378 dnl
 379 dnl Author:     Unknown
 380 dnl
 381 dnl Synopsis:   AM_PROG_LIBTOOL
 382 dnl
 383 dnl Arguments:  ---
 384 dnl
 385 dnl Use:        Configures `libtool' for the target architecture.
 386
 387 ##
 388 ## Configure libtool for the target system.
 389 ##
 390 # serial 1 AM_PROG_LIBTOOL
 391 AC_DEFUN(AM_PROG_LIBTOOL,
 392 [AC_REQUIRE([AC_CANONICAL_HOST])
 393 AC_REQUIRE([AC_PROG_CC])
 394 AC_REQUIRE([AC_PROG_RANLIB])
 395
 396 # Always use our own libtool.
 397 LIBTOOL='$(top_builddir)/libtool'
 398 AC_SUBST(LIBTOOL)
 399
 400 dnl Allow the --disable-shared flag to stop us from building shared libs.
 401 AC_ARG_ENABLE(shared,
 402 [  --enable-shared         build shared libraries [default=yes]],
 403 test "$enableval" = no && libtool_shared=" --disable-shared",
 404 libtool_shared=)
 405
 406 libtool_flags="$libtool_shared"
 407 test "$silent" = yes && libtool_flags="$libtool_flags --silent"
 408 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
 409
 410 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
 411 CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" LD="$LD" RANLIB="$RANLIB" \
 412 $ac_aux_dir/ltconfig $libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
 413 || AC_MSG_ERROR([libtool configure failed])
 414 ])
 415
 416 dnl --- *@-AM_PATH_LISPDIR-@* ---
 417 dnl
 418 dnl Author:     Ulrich Drepper
 419 dnl
 420 dnl Synopsis:   AM_PATH_LISPDIR
 421 dnl
 422 dnl Arguments:  ---
 423 dnl
 424 dnl Use:        Sets the variable `lispdir' to point to a place to install
 425 dnl             Emacs lisp files.
 426
 427 ## ------------------------
 428 ## Emacs LISP file handling
 429 ## From Ulrich Drepper
 430 ## ------------------------
 431
 432 # serial 1
 433
 434 AC_DEFUN(AM_PATH_LISPDIR,
 435  [# If set to t, that means we are running in a shell under Emacs.
 436   # If you have an Emacs named "t", then use the full path.
 437   test "$EMACS" = t && EMACS=
 438   AC_PATH_PROG(EMACS, emacs xemacs, no)
 439   if test $EMACS != "no"; then
 440     AC_MSG_CHECKING([where .elc files should go])
 441     dnl Set default value
 442     lispdir="\$(datadir)/emacs/site-lisp"
 443     if test "x$prefix" = "xNONE"; then
 444       if test -d $ac_default_prefix/share/emacs/site-lisp; then
 445         lispdir="\$(prefix)/share/emacs/site-lisp"
 446       else
 447         if test -d $ac_default_prefix/lib/emacs/site-lisp; then
 448           lispdir="\$(prefix)/lib/emacs/site-lisp"
 449         fi
 450       fi
 451     else
 452       if test -d $prefix/share/emacs/site-lisp; then
 453         lispdir="\$(prefix)/share/emacs/site-lisp"
 454       else
 455         if test -d $prefix/lib/emacs/site-lisp; then
 456           lispdir="\$(prefix)/lib/emacs/site-lisp"
 457         fi
 458       fi
 459     fi
 460     AC_MSG_RESULT($lispdir)
 461   fi
 462   AC_SUBST(lispdir)])
 463
 464 dnl --- *@-AM_MAINTAINTER_MODE-@* ---
 465 dnl
 466 dnl Author:     Jim Meyering
 467 dnl
 468 dnl Synopsis:   jm_MAINTAINER_MODE
 469 dnl
 470 dnl Arguments:  ---
 471 dnl
 472 dnl Use:        Provides an option `--enable-maintainer-mode' which turns
 473 dnl             on rules which might normally be commented out.  The
 474 dnl             substitution variable `MAINT' is set to be a comment when
 475 dnl             this option is disabled, which it is by default.
 476
 477 # serial 1
 478
 479 AC_DEFUN(AM_MAINTAINER_MODE,
 480 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 481   dnl maintainer-mode is disabled by default
 482   AC_ARG_ENABLE(maintainer-mode,
 483 [  --enable-maintainer-mode enable make rules and dependencies not useful
 484                           (and sometimes confusing) to the casual installer],
 485       USE_MAINTAINER_MODE=$enableval,
 486       USE_MAINTAINER_MODE=no)
 487   AC_MSG_RESULT($USE_MAINTAINER_MODE)
 488   if test $USE_MAINTAINER_MODE = yes; then
 489     MAINT=
 490   else
 491     MAINT='#M#'
 492   fi
 493   AC_SUBST(MAINT)dnl
 494 ]
 495 )
 496
 497 dnl --- *@-AM_MISSING_PROG-@* ---
 498 dnl
 499 dnl Author:     Unknown
 500 dnl
 501 dnl Synopsis:   AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
 502 dnl
 503 dnl Arguments:  NAME = variable to set to the file's location
 504 dnl             PROGRAM = name of program to find
 505 dnl             DIRECTORY = directory to look in
 506 dnl
 507 dnl Use:        Fakes existence of a useful GNU maintainer tool.
 508
 509 AC_DEFUN(AM_MISSING_PROG,
 510 [AC_MSG_CHECKING(for working $2)
 511 # Run test in a subshell; some versions of sh will print an error if
 512 # an executable is not found, even if stderr is redirected.
 513 # Redirect stdin to placate older versions of autoconf.  Sigh.
 514 if ($2 --version) < /dev/null > /dev/null 2>&1; then
 515    $1=$2
 516    AC_MSG_RESULT(found)
 517 else
 518    $1="$3/missing $2"
 519    AC_MSG_RESULT(missing)
 520 fi
 521 AC_SUBST($1)])
 522
 523 dnl --- *@-AM_FUNC_MKTIME-@* ---
 524 dnl
 525 dnl Author:     Jim Meyering
 526 dnl
 527 dnl Synopsis:   AM_FUNC_MKTIME
 528 dnl
 529 dnl Arguments:  ---
 530 dnl
 531 dnl Use:        Checks for a working mktime function.
 532
 533 AC_DEFUN(AM_FUNC_MKTIME,
 534 [AC_REQUIRE([AC_HEADER_TIME])dnl
 535  AC_CHECK_HEADERS(sys/time.h)
 536  AC_CACHE_CHECK([for working mktime], am_cv_func_working_mktime,
 537   [AC_TRY_RUN(
 538 changequote(<<, >>)dnl
 539 <</* Test program from Paul Eggert (eggert@twinsun.com)
 540    and Tony Leneis (tony@plaza.ds.adp.com).  */
 541 #if TIME_WITH_SYS_TIME
 542 # include <sys/time.h>
 543 # include <time.h>
 544 #else
 545 # if HAVE_SYS_TIME_H
 546 #  include <sys/time.h>
 547 # else
 548 #  include <time.h>
 549 # endif
 550 #endif
 551
 552 static time_t time_t_max;
 553
 554 /* Values we'll use to set the TZ environment variable.  */
 555 static const char *const tz_strings[] = {
 556   NULL, "GMT0", "JST-9", "EST+3EDT+2,M10.1.0/00:00:00,M2.3.0/00:00:00"
 557 };
 558 #define N_STRINGS (sizeof (tz_strings) / sizeof (tz_strings[0]))
 559
 560 static void
 561 mktime_test (now)
 562      time_t now;
 563 {
 564   if (mktime (localtime (&now)) != now)
 565     exit (1);
 566   now = time_t_max - now;
 567   if (mktime (localtime (&now)) != now)
 568     exit (1);
 569 }
 570
 571 int
 572 main ()
 573 {
 574   time_t t, delta;
 575   int i;
 576
 577   for (time_t_max = 1; 0 < time_t_max; time_t_max *= 2)
 578     continue;
 579   time_t_max--;
 580   delta = time_t_max / 997; /* a suitable prime number */
 581   for (i = 0; i < N_STRINGS; i++)
 582     {
 583       if (tz_strings[i])
 584         putenv (tz_strings[i]);
 585
 586       for (t = 0; t <= time_t_max - delta; t += delta)
 587         mktime_test (t);
 588       mktime_test ((time_t) 60 * 60);
 589       mktime_test ((time_t) 60 * 60 * 24);
 590     }
 591   exit (0);
 592 }
 593               >>,
 594 changequote([, ])dnl
 595              am_cv_func_working_mktime=yes, am_cv_func_working_mktime=no,
 596              dnl When crosscompiling, assume mktime is missing or broken.
 597              am_cv_func_working_mktime=no)
 598   ])
 599   if test $am_cv_func_working_mktime = no; then
 600     LIBOBJS="$LIBOBJS mktime.o"
 601   fi
 602 ])
 603
 604 dnl --- *@-AM_FUNC_OBSTACK-@* ---
 605 dnl
 606 dnl Author:     Jim Meyering
 607 dnl
 608 dnl Synopsis:   AM_FUNC_OBSTACK
 609 dnl
 610 dnl Arguments:  ---
 611 dnl
 612 dnl Use:        Checks for GNU obstacks.
 613
 614 AC_DEFUN(AM_FUNC_OBSTACK,
 615 [AC_CACHE_CHECK([for obstacks], am_cv_func_obstack,
 616  [AC_TRY_LINK([#include "obstack.h"],
 617               [struct obstack *mem;obstack_free(mem,(char *) 0)],
 618               am_cv_func_obstack=yes,
 619               am_cv_func_obstack=no)])
 620  if test $am_cv_func_obstack = yes; then
 621    AC_DEFINE(HAVE_OBSTACK)
 622  else
 623    LIBOBJS="$LIBOBJS obstack.o"
 624  fi
 625 ])
 626
 627 dnl --- *@-AC_C_PROTOTYPES-@* ---
 628 dnl
 629 dnl Author:     Franc,ois Pinard
 630 dnl
 631 dnl Synopsis:   AC_C_PROTOTYPES
 632 dnl
 633 dnl Arguments:  ---
 634 dnl
 635 dnl Use:        If the C compiler understands ANSI C, define `PROTOTYPES',
 636 dnl             and clear the `U' and `ANSI2KNR' variables.  Otherwise,
 637 dnl             set `U' to be `_' and `ANSI2KNR' to be `./ansi2knr'.
 638
 639 # serial 1
 640
 641 AC_DEFUN(fp_C_PROTOTYPES,
 642 [AC_REQUIRE([AM_PROG_CC_STDC])
 643 AC_MSG_CHECKING([for function prototypes])
 644 if test "$ac_cv_prog_cc_stdc" != no; then
 645   AC_MSG_RESULT(yes)
 646   AC_DEFINE(PROTOTYPES)
 647   U= ANSI2KNR=
 648 else
 649   AC_MSG_RESULT(no)
 650   U=_ ANSI2KNR=./ansi2knr
 651 fi
 652 AC_SUBST(U)dnl
 653 AC_SUBST(ANSI2KNR)dnl
 654 ])
 655
 656 dnl --- *@-AM_PATH_GTK-@* ---
 657 dnl
 658 dnl Author:     Owen Taylor
 659 dnl
 660 dnl Synopsis:   AM_PATH_GTK(MIN-VERSION, [ACTION-IF-FOUND], [ACTION-IF-NOT])
 661 dnl
 662 dnl Arguments:  MIN-VERSION = minimum version of GTK required
 663 dnl             ACTION-IF-FOUND = executed if GTK found OK
 664 dnl             ACTION-IF-NOT-FOUND = what to do if GTK not available
 665 dnl
 666 dnl Use:        Sets up compilation environment suitably for GTK programming.
 667
 668 # Configure paths for GTK+
 669 # Owen Taylor     97-11-3
 670
 671 dnl AM_PATH_GTK([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 672 dnl Test for GTK, and define GTK_CFLAGS and GTK_LIBS
 673 dnl
 674 AC_DEFUN(AM_PATH_GTK,
 675 [dnl
 676 dnl Get the cflags and libraries from the gtk-config script
 677 dnl
 678 AC_ARG_WITH(gtk-prefix,[  --with-gtk-prefix=PFX   Prefix where GTK is installed (optional)],
 679             gtk_config_prefix="$withval", gtk_config_prefix="")
 680 AC_ARG_WITH(gtk-exec-prefix,[  --with-gtk-exec-prefix=PFX Exec prefix where GTK is installed (optional)],
 681             gtk_config_exec_prefix="$withval", gtk_config_exec_prefix="")
 682 AC_ARG_ENABLE(gtktest, [  --disable-gtktest       Do not try to compile and run a test GTK program],
 683                     , enable_gtktest=yes)
 684
 685   if test x$gtk_config_exec_prefix != x ; then
 686      gtk_config_args="$gtk_config_args --exec-prefix=$gtk_config_exec_prefix"
 687      if test x${GTK_CONFIG+set} != xset ; then
 688         GTK_CONFIG=$gtk_config_exec_prefix/bin/gtk-config
 689      fi
 690   fi
 691   if test x$gtk_config_prefix != x ; then
 692      gtk_config_args="$gtk_config_args --prefix=$gtk_config_prefix"
 693      if test x${GTK_CONFIG+set} != xset ; then
 694         GTK_CONFIG=$gtk_config_prefix/bin/gtk-config
 695      fi
 696   fi
 697
 698   AC_PATH_PROG(GTK_CONFIG, gtk-config, no)
 699   min_gtk_version=ifelse([$1], ,0.99.7,$1)
 700   AC_MSG_CHECKING(for GTK - version >= $min_gtk_version)
 701   no_gtk=""
 702   if test "$GTK_CONFIG" = "no" ; then
 703     no_gtk=yes
 704   else
 705     GTK_CFLAGS=`$GTK_CONFIG $gtk_config_args --cflags`
 706     GTK_LIBS=`$GTK_CONFIG $gtk_config_args --libs`
 707     gtk_config_major_version=`$GTK_CONFIG $gtk_config_args --version | \
 708            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
 709     gtk_config_minor_version=`$GTK_CONFIG $gtk_config_args --version | \
 710            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
 711     gtk_config_micro_version=`$GTK_CONFIG $gtk_config_args --version | \
 712            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
 713     if test "x$enable_gtktest" = "xyes" ; then
 714       ac_save_CFLAGS="$CFLAGS"
 715       ac_save_LIBS="$LIBS"
 716       CFLAGS="$CFLAGS $GTK_CFLAGS"
 717       LIBS="$LIBS $GTK_LIBS"
 718 dnl
 719 dnl Now check if the installed GTK is sufficiently new. (Also sanity
 720 dnl checks the results of gtk-config to some extent
 721 dnl
 722       rm -f conf.gtktest
 723       AC_TRY_RUN([
 724 #include <gtk/gtk.h>
 725 #include <stdio.h>
 726
 727 int
 728 main ()
 729 {
 730   int major, minor, micro;
 731   char *tmp_version;
 732
 733   system ("touch conf.gtktest");
 734
 735   /* HP/UX 9 (%@#!) writes to sscanf strings */
 736   tmp_version = g_strdup("$min_gtk_version");
 737   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
 738      printf("%s, bad version string\n", "$min_gtk_version");
 739      exit(1);
 740    }
 741
 742   if ((gtk_major_version != $gtk_config_major_version) ||
 743       (gtk_minor_version != $gtk_config_minor_version) ||
 744       (gtk_micro_version != $gtk_config_micro_version))
 745     {
 746       printf("\n*** 'gtk-config --version' returned %d.%d.%d, but GTK+ (%d.%d.%d)\n",
 747              $gtk_config_major_version, $gtk_config_minor_version, $gtk_config_micro_version,
 748              gtk_major_version, gtk_minor_version, gtk_micro_version);
 749       printf ("*** was found! If gtk-config was correct, then it is best\n");
 750       printf ("*** to remove the old version of GTK+. You may also be able to fix the error\n");
 751       printf("*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing\n");
 752       printf("*** /etc/ld.so.conf. Make sure you have run ldconfig if that is\n");
 753       printf("*** required on your system.\n");
 754       printf("*** If gtk-config was wrong, set the environment variable GTK_CONFIG\n");
 755       printf("*** to point to the correct copy of gtk-config, and remove the file config.cache\n");
 756       printf("*** before re-running configure\n");
 757     }
 758   else
 759     {
 760       if ((gtk_major_version > major) ||
 761         ((gtk_major_version == major) && (gtk_minor_version > minor)) ||
 762         ((gtk_major_version == major) && (gtk_minor_version == minor) && (gtk_micro_version >= micro)))
 763       {
 764         return 0;
 765        }
 766      else
 767       {
 768         printf("\n*** An old version of GTK+ (%d.%d.%d) was found.\n",
 769                gtk_major_version, gtk_minor_version, gtk_micro_version);
 770         printf("*** You need a version of GTK+ newer than %d.%d.%d. The latest version of\n",
 771                major, minor, micro);
 772         printf("*** GTK+ is always available from ftp://ftp.gtk.org.\n");
 773         printf("***\n");
 774         printf("*** If you have already installed a sufficiently new version, this error\n");
 775         printf("*** probably means that the wrong copy of the gtk-config shell script is\n");
 776         printf("*** being found. The easiest way to fix this is to remove the old version\n");
 777         printf("*** of GTK+, but you can also set the GTK_CONFIG environment to point to the\n");
 778         printf("*** correct copy of gtk-config. (In this case, you will have to\n");
 779         printf("*** modify your LD_LIBRARY_PATH enviroment variable, or edit /etc/ld.so.conf\n");
 780         printf("*** so that the correct libraries are found at run-time))\n");
 781       }
 782     }
 783   return 1;
 784 }
 785 ],, no_gtk=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
 786        CFLAGS="$ac_save_CFLAGS"
 787        LIBS="$ac_save_LIBS"
 788      fi
 789   fi
 790   if test "x$no_gtk" = x ; then
 791      AC_MSG_RESULT(yes)
 792      ifelse([$2], , :, [$2])
 793   else
 794      AC_MSG_RESULT(no)
 795      if test "$GTK_CONFIG" = "no" ; then
 796        echo "*** The gtk-config script installed by GTK could not be found"
 797        echo "*** If GTK was installed in PREFIX, make sure PREFIX/bin is in"
 798        echo "*** your path, or set the GTK_CONFIG environment variable to the"
 799        echo "*** full path to gtk-config."
 800      else
 801        if test -f conf.gtktest ; then
 802         :
 803        else
 804           echo "*** Could not run GTK test program, checking why..."
 805           CFLAGS="$CFLAGS $GTK_CFLAGS"
 806           LIBS="$LIBS $GTK_LIBS"
 807           AC_TRY_LINK([
 808 #include <gtk/gtk.h>
 809 #include <stdio.h>
 810 ],      [ return ((gtk_major_version) || (gtk_minor_version) || (gtk_micro_version)); ],
 811         [ echo "*** The test program compiled, but did not run. This usually means"
 812           echo "*** that the run-time linker is not finding GTK or finding the wrong"
 813           echo "*** version of GTK. If it is not finding GTK, you'll need to set your"
 814           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
 815           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
 816           echo "*** is required on your system"
 817           echo "***"
 818           echo "*** If you have an old version installed, it is best to remove it, although"
 819           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"
 820           echo "***"
 821           echo "*** If you have a RedHat 5.0 system, you should remove the GTK package that"
 822           echo "*** came with the system with the command"
 823           echo "***"
 824           echo "***    rpm --erase --nodeps gtk gtk-devel" ],
 825         [ echo "*** The test program failed to compile or link. See the file config.log for the"
 826           echo "*** exact error that occured. This usually means GTK was incorrectly installed"
 827           echo "*** or that you have moved GTK since it was installed. In the latter case, you"
 828           echo "*** may want to edit the gtk-config script: $GTK_CONFIG" ])
 829           CFLAGS="$ac_save_CFLAGS"
 830           LIBS="$ac_save_LIBS"
 831        fi
 832      fi
 833      GTK_CFLAGS=""
 834      GTK_LIBS=""
 835      ifelse([$3], , :, [$3])
 836   fi
 837   AC_SUBST(GTK_CFLAGS)
 838   AC_SUBST(GTK_LIBS)
 839   rm -f conf.gtktest
 840 ])
 841
 842 dnl --- *@-AM_PATH_SDL-@* ---
 843 dnl
 844 dnl Author:     Sam Langinga
 845 dnl
 846 dnl Synopsis:   AM_PATH_SDL([VERSION, [IF-FOUND, [IF-NOT-FOUND]]])
 847 dnl
 848 dnl Arguments:  VERSION = minimum required version
 849 dnl             IF-FOUND = what to do if found
 850 dnl             IF-NOT-FOUND = what to do if not found
 851 dnl
 852 dnl Use:        Test for SDL, and define SDL_CFLAGS and SDL_LIBS
 853
 854 # Configure paths for SDL
 855 # Sam Lantinga 9/21/99
 856 # stolen from Manish Singh
 857 # stolen back from Frank Belew
 858 # stolen from Manish Singh
 859 # Shamelessly stolen from Owen Taylor
 860
 861 dnl AM_PATH_SDL([MINIMUM-VERSION, [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]]])
 862 dnl Test for SDL, and define SDL_CFLAGS and SDL_LIBS
 863 dnl
 864 AC_DEFUN(AM_PATH_SDL,
 865 [dnl
 866 dnl Get the cflags and libraries from the sdl-config script
 867 dnl
 868 AC_ARG_WITH(sdl-prefix,[  --with-sdl-prefix=PFX   Prefix where SDL is installed (optional)],
 869             sdl_prefix="$withval", sdl_prefix="")
 870 AC_ARG_WITH(sdl-exec-prefix,[  --with-sdl-exec-prefix=PFX Exec prefix where SDL is installed (optional)],
 871             sdl_exec_prefix="$withval", sdl_exec_prefix="")
 872 AC_ARG_ENABLE(sdltest, [  --disable-sdltest       Do not try to compile and run a test SDL program],
 873                     , enable_sdltest=yes)
 874
 875   if test x$sdl_exec_prefix != x ; then
 876      sdl_args="$sdl_args --exec-prefix=$sdl_exec_prefix"
 877      if test x${SDL_CONFIG+set} != xset ; then
 878         SDL_CONFIG=$sdl_exec_prefix/bin/sdl-config
 879      fi
 880   fi
 881   if test x$sdl_prefix != x ; then
 882      sdl_args="$sdl_args --prefix=$sdl_prefix"
 883      if test x${SDL_CONFIG+set} != xset ; then
 884         SDL_CONFIG=$sdl_prefix/bin/sdl-config
 885      fi
 886   fi
 887
 888   AC_PATH_PROG(SDL_CONFIG, sdl-config, no)
 889   min_sdl_version=ifelse([$1], ,0.11.0,$1)
 890   AC_MSG_CHECKING(for SDL - version >= $min_sdl_version)
 891   no_sdl=""
 892   if test "$SDL_CONFIG" = "no" ; then
 893     no_sdl=yes
 894   else
 895     SDL_CFLAGS=`$SDL_CONFIG $sdlconf_args --cflags`
 896     SDL_LIBS=`$SDL_CONFIG $sdlconf_args --libs`
 897
 898     sdl_major_version=`$SDL_CONFIG $sdl_args --version | \
 899            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\1/'`
 900     sdl_minor_version=`$SDL_CONFIG $sdl_args --version | \
 901            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\2/'`
 902     sdl_micro_version=`$SDL_CONFIG $sdl_config_args --version | \
 903            sed 's/\([[0-9]]*\).\([[0-9]]*\).\([[0-9]]*\)/\3/'`
 904     if test "x$enable_sdltest" = "xyes" ; then
 905       ac_save_CFLAGS="$CFLAGS"
 906       ac_save_LIBS="$LIBS"
 907       CFLAGS="$CFLAGS $SDL_CFLAGS"
 908       LIBS="$LIBS $SDL_LIBS"
 909 dnl
 910 dnl Now check if the installed SDL is sufficiently new. (Also sanity
 911 dnl checks the results of sdl-config to some extent
 912 dnl
 913       rm -f conf.sdltest
 914       AC_TRY_RUN([
 915 #include <stdio.h>
 916 #include <stdlib.h>
 917 #include <string.h>
 918 #include "SDL.h"
 919
 920 char*
 921 my_strdup (char *str)
 922 {
 923   char *new_str;
 924
 925   if (str)
 926     {
 927       new_str = (char *)malloc ((strlen (str) + 1) * sizeof(char));
 928       strcpy (new_str, str);
 929     }
 930   else
 931     new_str = NULL;
 932
 933   return new_str;
 934 }
 935
 936 int main (int argc, char *argv[])
 937 {
 938   int major, minor, micro;
 939   char *tmp_version;
 940
 941   /* This hangs on some systems (?)
 942   system ("touch conf.sdltest");
 943   */
 944   { FILE *fp = fopen("conf.sdltest", "a"); if ( fp ) fclose(fp); }
 945
 946   /* HP/UX 9 (%@#!) writes to sscanf strings */
 947   tmp_version = my_strdup("$min_sdl_version");
 948   if (sscanf(tmp_version, "%d.%d.%d", &major, &minor, &micro) != 3) {
 949      printf("%s, bad version string\n", "$min_sdl_version");
 950      exit(1);
 951    }
 952
 953    if (($sdl_major_version > major) ||
 954       (($sdl_major_version == major) && ($sdl_minor_version > minor)) ||
 955       (($sdl_major_version == major) && ($sdl_minor_version == minor) && ($sdl_micro_version >= micro)))
 956     {
 957       return 0;
 958     }
 959   else
 960     {
 961       printf("\n*** 'sdl-config --version' returned %d.%d.%d, but the minimum version\n", $sdl_major_version, $sdl_minor_version, $sdl_micro_version);
 962       printf("*** of SDL required is %d.%d.%d. If sdl-config is correct, then it is\n", major, minor, micro);
 963       printf("*** best to upgrade to the required version.\n");
 964       printf("*** If sdl-config was wrong, set the environment variable SDL_CONFIG\n");
 965       printf("*** to point to the correct copy of sdl-config, and remove the file\n");
 966       printf("*** config.cache before re-running configure\n");
 967       return 1;
 968     }
 969 }
 970
 971 ],, no_sdl=yes,[echo $ac_n "cross compiling; assumed OK... $ac_c"])
 972        CFLAGS="$ac_save_CFLAGS"
 973        LIBS="$ac_save_LIBS"
 974      fi
 975   fi
 976   if test "x$no_sdl" = x ; then
 977      AC_MSG_RESULT(yes)
 978      ifelse([$2], , :, [$2])
 979   else
 980      AC_MSG_RESULT(no)
 981      if test "$SDL_CONFIG" = "no" ; then
 982        echo "*** The sdl-config script installed by SDL could not be found"
 983        echo "*** If SDL was installed in PREFIX, make sure PREFIX/bin is in"
 984        echo "*** your path, or set the SDL_CONFIG environment variable to the"
 985        echo "*** full path to sdl-config."
 986      else
 987        if test -f conf.sdltest ; then
 988         :
 989        else
 990           echo "*** Could not run SDL test program, checking why..."
 991           CFLAGS="$CFLAGS $SDL_CFLAGS"
 992           LIBS="$LIBS $SDL_LIBS"
 993           AC_TRY_LINK([
 994 #include <stdio.h>
 995 #include "SDL.h"
 996 ],      [ return 0; ],
 997         [ echo "*** The test program compiled, but did not run. This usually means"
 998           echo "*** that the run-time linker is not finding SDL or finding the wrong"
 999           echo "*** version of SDL. If it is not finding SDL, you'll need to set your"
1000           echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
1001           echo "*** to the installed location  Also, make sure you have run ldconfig if that"
1002           echo "*** is required on your system"
1003           echo "***"
1004           echo "*** If you have an old version installed, it is best to remove it, although"
1005           echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
1006         [ echo "*** The test program failed to compile or link. See the file config.log for the"
1007           echo "*** exact error that occured. This usually means SDL was incorrectly installed"
1008           echo "*** or that you have moved SDL since it was installed. In the latter case, you"
1009           echo "*** may want to edit the sdl-config script: $SDL_CONFIG" ])
1010           CFLAGS="$ac_save_CFLAGS"
1011           LIBS="$ac_save_LIBS"
1012        fi
1013      fi
1014      SDL_CFLAGS=""
1015      SDL_LIBS=""
1016      ifelse([$3], , :, [$3])
1017   fi
1018   AC_SUBST(SDL_CFLAGS)
1019   AC_SUBST(SDL_LIBS)
1020   rm -f conf.sdltest
1021 ])
1022
1023 dnl --- *@-AC_TYPE_PTRDIFF_T-@* ---
1024 dnl
1025 dnl Author:     Ulrich Drepper
1026 dnl
1027 dnl Synopsis:   AC_TYPE_PTRDIFF_T
1028 dnl
1029 dnl Arguments:  ---
1030 dnl
1031 dnl Use:        Sets HAVE_PTRDIFF_T if the type exists.
1032
1033 AC_DEFUN(AM_TYPE_PTRDIFF_T,
1034   [AC_CACHE_CHECK([for ptrdiff_t], am_cv_type_ptrdiff_t,
1035      [AC_TRY_COMPILE([#include <stddef.h>], [ptrdiff_t p],
1036                      am_cv_type_ptrdiff_t=yes, am_cv_type_ptrdiff_t=no)])
1037    if test $am_cv_type_ptrdiff_t = yes; then
1038      AC_DEFINE(HAVE_PTRDIFF_T)
1039    fi
1040 ])
1041
1042 dnl --- *@-AM_WITH_REGEX-@* ---
1043 dnl
1044 dnl Author:     Unknown (possibly Franc,ois Pinard)
1045 dnl
1046 dnl Synopsis:   AM_WITH_REGEX
1047 dnl
1048 dnl Arguments:  ---
1049 dnl
1050 dnl Use:
1051 dnl             The idea is to distribute rx.[hc] and regex.[hc] together,
1052 dnl             for a while.  The WITH_REGEX symbol (which should also be
1053 dnl             documented in acconfig.h) is used to decide which of regex.h
1054 dnl             or rx.h should be included in the application.  If
1055 dnl             `./configure --with-regex' is given (the default), the
1056 dnl             package will use gawk's regex.  If `./configure
1057 dnl             --without-regex', a check is made to see if rx is already
1058 dnl             installed, as with newer Linux'es.  If not found, the package
1059 dnl             will use the rx from the distribution.  If found, the package
1060 dnl             will use the system's rx which, on Linux at least, will
1061 dnl             result in a smaller executable file.
1062
1063 AC_DEFUN(AM_WITH_REGEX,
1064 [AC_MSG_CHECKING(which of GNU rx or gawk's regex is wanted)
1065 AC_ARG_WITH(regex,
1066 [  --without-regex         use GNU rx in lieu of gawk's regex for matching],
1067 [test "$withval" = yes && am_with_regex=1],
1068 [am_with_regex=1])
1069 if test -n "$am_with_regex"; then
1070   AC_MSG_RESULT(regex)
1071   AC_DEFINE(WITH_REGEX)
1072   AC_CACHE_CHECK([for GNU regex in libc], am_cv_gnu_regex,
1073     AC_TRY_LINK([], [extern int re_max_failures; re_max_failures = 1],
1074                 am_cv_gnu_regex=yes, am_cv_gnu_regex=no))
1075   if test $am_cv_gnu_regex = no; then
1076     LIBOBJS="$LIBOBJS regex.o"
1077   fi
1078 else
1079   AC_MSG_RESULT(rx)
1080   AC_CHECK_FUNC(re_rx_search, , [LIBOBJS="$LIBOBJS rx.o"])
1081 fi
1082 AC_SUBST(LIBOBJS)dnl
1083 ])
1084
1085 dnl --- *@-AM_SANITY_CHECK-@*
1086 dnl
1087 dnl Author:     Unknown
1088 dnl
1089 dnl Synopsis:   AM_SANITY_CHECK
1090 dnl
1091 dnl Arguments:  ---
1092 dnl
1093 dnl Use:        Check for build environment sanity.
1094
1095 AC_DEFUN(AM_SANITY_CHECK,
1096 [AC_MSG_CHECKING([whether build environment is sane])
1097 # Just in case
1098 sleep 1
1099 echo timestamp > conftestfile
1100 # Do `set' in a subshell so we don't clobber the current shell's
1101 # arguments.  Must try -L first in case configure is actually a
1102 # symlink; some systems play weird games with the mod time of symlinks
1103 # (eg FreeBSD returns the mod time of the symlink's containing
1104 # directory).
1105 if (
1106    set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
1107    if test "$@" = "X"; then
1108       # -L didn't work.
1109       set X `ls -t $srcdir/configure conftestfile`
1110    fi
1111    test "[$]2" = conftestfile
1112    )
1113 then
1114    # Ok.
1115    :
1116 else
1117    AC_MSG_ERROR([newly created file is older than distributed files!
1118 Check your system clock])
1119 fi
1120 rm -f conftest*
1121 AC_MSG_RESULT(yes)])
1122
1123 dnl --- *@-AM_FUNC_STRDOD-@* ---
1124 dnl
1125 dnl Author:     Jim Meyering
1126 dnl
1127 dnl Synopsis:   AM_FUNC_STRTOD
1128 dnl
1129 dnl Arguments:  ---
1130 dnl
1131 dnl Use:        Checks for a working strtod function.
1132
1133 ## Copyright (C) 1996 Free Software Foundation, Inc.
1134
1135 ## This program is free software; you can redistribute it and/or modify
1136 ## it under the terms of the GNU General Public License as published by
1137 ## the Free Software Foundation; either version 2, or (at your option)
1138 ## any later version.
1139
1140 ## This program is distributed in the hope that it will be useful,
1141 ## but WITHOUT ANY WARRANTY; without even the implied warranty of
1142 ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
1143 ## GNU General Public License for more details.
1144
1145 ## You should have received a copy of the GNU General Public License
1146 ## along with this program; if not, write to the Free Software
1147 ## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
1148 ## 02111-1307, USA.
1149
1150 ## From Jim Meyering.
1151
1152 ## serial 1
1153
1154 ## @defmac AC_FUNC_STRTOD
1155 ## @maindex FUNC_STRTOD
1156 ## @ovindex LIBOBJS
1157 ## If the @code{strtod} function is not available, or does not work
1158 ## correctly (like the one on SunOS 5.4), add @samp{strtod.o} to output
1159 ## variable @code{LIBOBJS}.
1160 ## @end defmac
1161
1162 AC_DEFUN(AM_FUNC_STRTOD,
1163 [AC_CACHE_CHECK(for working strtod, am_cv_func_strtod,
1164 [AC_TRY_RUN([
1165 double strtod ();
1166 int
1167 main()
1168 {
1169   {
1170     /* Some versions of Linux strtod mis-parse strings with leading '+'.  */
1171     char *string = " +69";
1172     char *term;
1173     double value;
1174     value = strtod (string, &term);
1175     if (value != 69 || term != (string + 4))
1176       exit (1);
1177   }
1178
1179   {
1180     /* Under Solaris 2.4, strtod returns the wrong value for the
1181        terminating character under some conditions.  */
1182     char *string = "NaN";
1183     char *term;
1184     strtod (string, &term);
1185     if (term != string && *(term - 1) == 0)
1186       exit (1);
1187   }
1188   exit (0);
1189 }
1190 ], am_cv_func_strtod=yes, am_cv_func_strtod=no, am_cv_func_strtod=no)])
1191 test $am_cv_func_strtod = no && LIBOBJS="$LIBOBJS strtod.o"
1192 AC_SUBST(LIBOBJS)dnl
1193 am_cv_func_strtod_needs_libm=no
1194 if test $am_cv_func_strtod = no; then
1195   AC_CHECK_FUNCS(pow)
1196   if test $ac_cv_func_pow = no; then
1197     AC_CHECK_LIB(m, pow, [am_cv_func_strtod_needs_libm=yes],
1198                  [AC_MSG_WARN(can't find library containing definition of pow)])
1199   fi
1200 fi
1201 ])
1202
1203 dnl --- *@-AM_SYS_POSIX_TERMIOS-@* ---
1204 dnl
1205 dnl Author:     Jim Meyering
1206 dnl
1207 dnl Synopsis:   AM_SYS_POSIX_TERMIOS
1208 dnl
1209 dnl Arguments:  ---
1210 dnl
1211 dnl Use:        Checks for a POSIX termios.h.
1212
1213 AC_DEFUN(AM_SYS_POSIX_TERMIOS,
1214 [AC_CACHE_CHECK([POSIX termios], am_cv_sys_posix_termios,
1215   [AC_TRY_LINK([#include <sys/types.h>
1216 #include <unistd.h>
1217 #include <termios.h>],
1218   [/* SunOS 4.0.3 has termios.h but not the library calls.  */
1219    tcgetattr(0, 0);],
1220   am_cv_sys_posix_termios=yes,
1221   am_cv_sys_posix_termios=no)])
1222 ])
1223
1224 dnl----- Macros by Mark Wooding ------------------------------ *@--IGNORE--@*
1225
1226 dnl --- *@-mdw_REQUIRE-@* ---
1227 dnl
1228 dnl Author:     Mark Wooding
1229 dnl
1230 dnl Synopsis:   mdw_REQUIRE(MACRO, ARGS...)
1231 dnl
1232 dnl Arguments:  MACRO = name of a macro which should have been called
1233 dnl             ARGS = arguments to pass
1234 dnl
1235 dnl Use:        Like `AC_REQUIRE', only it handles arguments.
1236
1237 AC_DEFUN([mdw_REQUIRE],
1238 [ifdef([AC_PROVIDE_$1], ,
1239 [AC_DIVERT_PUSH(builtin(eval, AC_DIVERSION_CURRENT - 1))dnl
1240 indir($@)
1241 AC_DIVERT_POP()dnl
1242 ])])
1243
1244 dnl --- *@-mdw_CURSES-@* ---
1245 dnl
1246 dnl Author:     Mark Wooding
1247 dnl
1248 dnl Synopsis:   mdw_CURSES
1249 dnl
1250 dnl Arguments:  ---
1251 dnl
1252 dnl Use:        Searches for a `curses' library (one of `ncurses' or
1253 dnl             `curses') using mdw_CHECK_MANYLIBS.  If one is found, the
1254 dnl             preprocessor macro HAVE_CURSES is defined, and a search is
1255 dnl             made for a `curses' header file (one of <ncurses.h>,
1256 dnl             <ncurses/ncurses.h> or <curses.h>) using AC_CHECK_HEADERS
1257 dnl             and the appropriate preprocessor symbol is defined.
1258 dnl             Finally, a check is made for the function `wresize' using
1259 dnl             AC_CHECK_FUNCS.
1260
1261 AC_DEFUN([mdw_CURSES],
1262 [mdw_CHECK_MANYLIBS(newwin, ncurses curses, AC_DEFINE(HAVE_CURSES))
1263 if test $mdw_cv_lib_newwin != no; then
1264 AC_CHECK_HEADERS([ncurses.h ncurses/ncurses.h curses.h], [break])
1265 if test "$ac_cv_header_ncurses_h" = "no" &&
1266    test "$ac_cv_header_ncurses_ncurses_h" = "no" &&
1267    test "$ac_cv_header_curses_h" = "no"; then
1268      AC_MSG_WARN([couldn't find a \`curses' header.  Assuming \`curses.h'.])
1269      AC_DEFINE(HAVE_CURSES_H)
1270 fi
1271 AC_CHECK_FUNCS(wresize)
1272 fi])
1273
1274 dnl --- *@-mdw_TYPE_SSIZE_T-@* ---
1275 dnl
1276 dnl Author:     Mark Wooding
1277 dnl
1278 dnl Synopsis:   mdw_TYPE_SSIZE_T
1279 dnl
1280 dnl Arguments:  ---
1281 dnl
1282 dnl Use:        Checks whether the Posix type `ssize_t' is defined.  If not,
1283 dnl             it defaults to `int'.
1284
1285 AC_DEFUN([mdw_TYPE_SSIZE_T],
1286 [AC_REQUIRE([AC_HEADER_STDC])
1287 AC_CACHE_CHECK(for ssize_t, mdw_cv_ssize_t,
1288 [AC_EGREP_CPP(ssize_t,
1289 [#include <sys/types.h>
1290 #if HAVE_UNISTD_H
1291 #include <unistd.h>
1292 #endif
1293 #if STDC_HEADERS
1294 #include <stdlib.h>
1295 #include <stddef.h>
1296 #endif],
1297 [mdw_cv_ssize_t=yes], [mdw_cv_ssize_t=no])])
1298 if test $mdw_cv_ssize_t = no; then
1299   AC_DEFINE(ssize_t, int)
1300 fi])
1301
1302 dnl --- *@-mdw_DECL_ENVIRON-@* ---
1303 dnl
1304 dnl Author:     Mark Wooding
1305 dnl
1306 dnl Synopsis:   mdw_DECL_ENVIRON
1307 dnl
1308 dnl Arguments:  ---
1309 dnl
1310 dnl Use:        Searches for a declaration of the global `environ' variable.
1311 dnl             If one is found in one of the `usual' places, DECL_ENVIRON
1312 dnl             is defined as a preprocessor symbol.
1313
1314 AC_DEFUN([mdw_DECL_ENVIRON],
1315 [AC_CACHE_CHECK([for declaration of \`environ'], mdw_cv_environ,
1316 [AC_EGREP_CPP(environ,
1317 [#include <sys/types.h>
1318 #if HAVE_UNISTD_H
1319 #include <unistd.h>
1320 #endif
1321 #if STDC_HEADERS
1322 #include <stdlib.h>
1323 #include <stddef.h>
1324 #endif], [mdw_cv_environ=yes], [mdw_cv_environ=no])])
1325 if test $mdw_cv_environ = yes; then
1326   AC_DEFINE(DECL_ENVIRON)
1327 fi])
1328
1329 dnl --- *@-mdw_CHECK_MANYLIBS-@* ---
1330 dnl
1331 dnl Author:     Mark Wooding
1332 dnl
1333 dnl Synopsis:   mdw_CHECK_MANYLIBS(FUNC, LIBS, [IF-FOUND], [IF-NOT-FOUND],
1334 dnl                     [INCLUDES], [ARGS])
1335 dnl
1336 dnl Arguments:  FUNC = a function to try to find
1337 dnl             LIBS = a whitespace-separated list of libraries to search
1338 dnl             IF-FOUND = what to do when the function is found
1339 dnl             IF-NOT-FOUND = what to do when the function isn't found
1340 dnl             INCLUDES = other include files to add
1341 dnl             ARGS = arguments to pass the function
1342 dnl
1343 dnl Use:        Searches for a library which defines FUNC.  It first tries
1344 dnl             without any libraries; then it tries each library specified
1345 dnl             in LIBS in turn.  If it finds a match, it adds the
1346 dnl             appropriate library to `LIBS'.
1347 dnl
1348 dnl             This is particularly handy under DIREIX: if you link with
1349 dnl             `-lnsl' then you get non-NIS-aware versions of getpwnam and
1350 dnl             so on, which is clearly a Bad Thing.
1351
1352 AC_DEFUN([mdw_CHECK_MANYLIBS],
1353 [AC_CACHE_CHECK([for library containing $1], [mdw_cv_lib_$1],
1354 [mdw_save_LIBS="$LIBS"
1355 mdw_cv_lib_$1="no"
1356 AC_TRY_LINK([$5], [$1($6)], [mdw_cv_lib_$1="none required"])
1357 test "$mdw_cv_lib_$1" = "no" && for i in $2; do
1358 LIBS="-l$i $mdw_save_LIBS"
1359 AC_TRY_LINK([$5], [$1($6)],
1360 [mdw_cv_lib_$1="-l$i"
1361 break])
1362 done
1363 LIBS="$mdw_save_LIBS"])
1364 if test "$mdw_cv_lib_$1" != "no"; then
1365   test "$mdw_cv_lib_$1" = "none required" || LIBS="$mdw_cv_lib_$1 $LIBS"
1366   $3
1367 else :
1368   $4
1369 fi])
1370
1371 dnl --- *@-mdw__PERL_VERSION-@* ---
1372 dnl
1373 dnl AC_DEFUN relies on `[', `]' being quotes, so I have to drop down a level.
1374
1375 changequote(<<, >>)
1376 define([mdw__PERL_VERSION], <<$1 -e 'exit ($] < $2);' >&5 2>&5>>)
1377 changequote([, ])
1378
1379 dnl --- *@-mdw_PROG_PERL-@* ---
1380 dnl
1381 dnl Author:     Mark Wooding
1382 dnl
1383 dnl Synopsis:   mdw_PROG_PERL(VERSION, [IF-FOUND], [IF-NOT-FOUND])
1384 dnl
1385 dnl Arguments:  VERSION = version number of Perl required
1386 dnl             IF-FOUND = what to do if it's found
1387 dnl             IF-NOT-FOUND = what to do if it isn't
1388 dnl
1389 dnl Use:        Attempts to find a working version of Perl with a late
1390 dnl             enough version number.  It supplies an option `--with-perl'
1391 dnl             to allow the user to provide a Perl interpreter.  If one
1392 dnl             isn't provided explicitly, it searches for `perl' and `perl5'
1393 dnl             in the current PATH, asking them whether they have a late
1394 dnl             enough version number.  The path of the working Perl is
1395 dnl             put into the `PERL' environment variable; `AC_SUBST' is used
1396 dnl             to substitute its value into Perl scripts.  If there is no
1397 dnl             Perl to be found, the value of `PERL' is set to be `none'.
1398
1399 AC_DEFUN([mdw_PROG_PERL],
1400 [AC_ARG_WITH([perl],
1401 [  --with-perl=PERL       specify path to Perl version $1 or newer],
1402 [PERL="$withval"],
1403 if test -z "$PERL"; then
1404 [AC_CACHE_CHECK([for Perl version $1 or later], mdw_cv_prog_perl,
1405 [mdw_cv_prog_perl="none"
1406 for p in `echo "$PATH:/usr/local/bin" | tr ":" " "`; do
1407   case $p in /*) ;; *) p=`pwd`/$p ;; esac
1408   if mdw__PERL_VERSION(["$p/perl"], $1); then
1409     mdw_cv_prog_perl="$p/perl"
1410     break
1411   fi
1412   if mdw__PERL_VERSION(["$p/perl5"], $1); then
1413     mdw_cv_prog_perl="$p/perl5"
1414     break
1415   fi
1416 done])
1417 PERL="$mdw_cv_prog_perl"])
1418 fi
1419
1420 AC_SUBST(PERL)dnl
1421 if test "$PERL" = "none"; then :
1422   $3
1423 else :
1424   $2
1425 fi])
1426
1427 dnl --- *@-mdw_CHECK_PERL-@* ---
1428 dnl
1429 dnl Author:     Mark Wooding
1430 dnl
1431 dnl Synopsis:   mdw_CHECK_PERL(VERSION)
1432 dnl
1433 dnl Arguments:  VERSION = version number of Perl required
1434 dnl
1435 dnl Use:        Verifies that the Perl interpreter in the `PERL' shell
1436 dnl             variable actually works and is of the right version.  If it's
1437 dnl             not, an error is raised and configuration is aborted.
1438
1439 AC_DEFUN([mdw_CHECK_PERL],
1440 [mdw_REQUIRE([mdw_PROG_PERL], [$1])
1441 AC_MSG_CHECKING([whether Perl ($PERL) works])
1442 if test "$PERL" != "none" && mdw__PERL_VERSION("$PERL", $1); then
1443   AC_MSG_RESULT([yes])
1444 else
1445   AC_MSG_RESULT([no])
1446   AC_MSG_ERROR([Perl version $1 or newer not found.
1447 If you have a recent enough Perl, and I just failed to find it, try using
1448 the --with-perl=PERL option to give me an explicit pathname.])
1449 fi])
1450
1451 dnl --- *@-mdw_PERLLIB_CHECK-@* ---
1452 dnl
1453 dnl Author:     Mark Wooding
1454 dnl
1455 dnl Synopsis:   mdw_PERLLIB_CHECK(LIBRARY)
1456 dnl
1457 dnl Arguments:  LIBRARY = name of a Perl library to check for
1458 dnl
1459 dnl Use:        Ensures that a Perl script can `use LIBRARY;'.  If it can,
1460 dnl             all's well and good; if it can't, `LIBRARY.pm' is added to
1461 dnl             the variable `NEEDED_PERLLIBS' and a line which adds
1462 dnl             `pkgdatadir' to Perl's `@INC' array is placed in the
1463 dnl             variable `INC_PERLLIBS'; `AC_SUBST' is called for both of
1464 dnl             these variables.  It's expected that `NEEDED_PERLLIBS' will
1465 dnl             be used in the `Makefile.in' to decide which versions from
1466 dnl             the distribution need installing.
1467 dnl
1468 dnl             This macro isn't terribly useful in the general case.  It
1469 dnl             Also implicitly assumes that `$PERL' is Perl 5 or later.
1470
1471 AC_DEFUN([mdw__PERLLIB_INIT],
1472 [AC_SUBST(INC_PERLLIBS)dnl
1473 AC_SUBST(NEEDED_PERLLIBS)dnl
1474 ])
1475
1476 AC_DEFUN([mdw_PERLLIB_CHECK],
1477 [AC_REQUIRE([mdw__PERLLIB_INIT])
1478 mdw_REQUIRE([mdw_CHECK_PERL], 5)
1479 AC_CACHE_CHECK([for Perl library $1], mdw_cv_perllib_$1,
1480 [if $PERL -e 'use $1;' >&5 2>&5; then
1481   mdw_cv_perllib_$1="yes"
1482 else
1483   mdw_cv_perllib_$1="no"
1484 fi])
1485
1486 if test "$mdw_cv_perllib_$1" = "no"; then
1487   NEEDED_PERLLIBS="$NEEDED_PERLLIBS $1.pm"
1488
1489   # --- Deal with autoconf lossage ---
1490   #
1491   # It doesn't want to define `prefix' until rather later on, so I have
1492   # to bodge it here.
1493
1494   if test -z "$INC_PERLLIBS"; then
1495     mdw_old_prefix="$prefix"
1496     test "$prefix" = "NONE" && prefix="$ac_default_prefix";
1497     INC_PERLLIBS="BEGIN { push @INC, \"`eval echo $datadir/$PACKAGE`\"; }"
1498     prefix="$mdw_old_prefix";
1499   fi
1500 fi])
1501
1502 dnl --- *@-mdw_GCC_FLAGS-@* ---
1503 dnl
1504 dnl Author:     Mark Wooding
1505 dnl
1506 dnl Synopsis:   mdw_GCC_FLAGS([FLAGS], [CFLAGS], [C++FLAGS])
1507 dnl
1508 dnl Arguments:  FLAGS = GCC compiler flags to add (default is
1509 dnl                     `-pedantic -Wall')
1510 dnl             CFLAGS = GCC C compiler flags to add (default is empty)
1511 dnl             C++FLAGS = GCC C++ compiler flags to add (default is
1512 dnl                     `-fhandle-exceptions').
1513 dnl
1514 dnl Use:        If the C compiler is GCC, add the compiler flags.
1515
1516 AC_DEFUN([mdw_GCC_FLAGS],
1517 [if test "$GCC" = "yes"; then
1518   CFLAGS="$CFLAGS ifelse([$1], [], [-pedantic -Wall], [$1])"
1519   CFLAGS="$CFLAGS ifelse([$2], [], [], [$2])"
1520 fi
1521 if test "$GXX" = "yes"; then
1522   CXXFLAGS="$CXXFLAGS ifelse([$1], [], [-pedantic -Wall], [$1])"
1523   CXXFLAGS="$CXXFLAGS ifelse([$3], [], [-fhandle-exceptions], [$3])"
1524 fi])
1525
1526 dnl *@-mdw_INIT_LIB-@*
1527 dnl
1528 dnl Author:     Mark Wooding
1529 dnl
1530 dnl Synopsis:   mdw_INIT_LIB(LIB, NAME, VERSION, [PACKAGE])
1531 dnl
1532 dnl Arguments:  LIB = the name of the library (and the package)
1533 dnl             NAME = a presentable version of the library's name
1534 dnl             VERSION = version of the library
1535 dnl             PACKAGE = package name to pass on to AM_INIT_AUTOMAKE
1536 dnl
1537 dnl Use:        Sets up various useful variables.  This macro calls
1538 dnl             AM_INIT_AUTOMAKE, which might be considered useful.  It also
1539 dnl             provides variables for the use of `lib-config.in'.
1540
1541 AC_DEFUN([mdw_INIT_LIB],
1542 [AM_INIT_AUTOMAKE(ifelse([$4], [], [$1], [$4]), [$3])
1543 LIBRARY="$1" AC_SUBST(LIBRARY)
1544 LIBNAME="$2" AC_SUBST(LIBNAME)])
1545
1546 dnl *@-mdw_LIB_CONFIG-@*
1547 dnl
1548 dnl Author:     Mark Wooding
1549 dnl
1550 dnl Synopsis:   mdw_LIB_CONFIG(LIB, NAME, VERSION, IF-FOUND, IF-NOT-FOUND)
1551 dnl
1552 dnl Arguments:  LIB = the name of the library (and its configuration program)
1553 dnl             NAME = a presentable version of the library's name
1554 dnl             VERSION = version of library required
1555 dnl             IF-FOUND = what to do if found
1556 dnl             IF-NOT-FOUND = what to do if not found
1557 dnl
1558 dnl Use:        Configures a library client program, using a configuration
1559 dnl             script provided by the library maintainer.
1560 dnl
1561 dnl             The default version is 1.0.0pre0; the default action is to
1562 dnl             add everything to the CFLAGS and LIBS variables, and complain
1563 dnl             if the library couldn't be found.
1564 dnl
1565 dnl             The variable LIB_VERSION contains the version number of
1566 dnl             the library; LIB_CFLAGS is the C compiler flags required
1567 dnl             and LIB_LIBS is the linker flags.
1568
1569 AC_DEFUN([mdw_LIB_CONFIG],
1570 [pushdef([upname], translit([$1], [a-z], [A-Z]))dnl
1571 AC_MSG_CHECKING([for $2 library])
1572 if $1-config --check $3 >/dev/null 2>&1; then
1573   upname[]_VERSION=`$1-config --version`
1574   upname[]_CFLAGS=`$1-config --cflags`
1575   upname[]_LIBS=`$1-config --libs`
1576   AC_SUBST(upname[]_VERSION)
1577   AC_SUBST(upname[]_CFLAGS)
1578   AC_SUBST(upname[]_LIBS)
1579   ifelse([$4], [],
1580   [CFLAGS="$CFLAGS $upname[]_CFLAGS"
1581   LIBS="$upname[]_LIBS $LIBS"],
1582   $4)
1583   AC_MSG_RESULT([$upname[]_VERSION])
1584 else
1585   ifelse([$5], [],
1586   AC_MSG_ERROR([$2 library not found or too old.]),
1587   $5)
1588   AC_MSG_RESULT([not found])
1589 fi
1590 popdef([upname])])
1591
1592 dnl *@-mdw_MLIB-@*
1593 dnl
1594 dnl Author:     Mark Wooding
1595 dnl
1596 dnl Synopsis:   mdw_MLIB(VERSION, IF-FOUND, IF-NOT-FOUND
1597 dnl
1598 dnl Arguments:  VERSION = version of library required
1599 dnl             IF-FOUND = what to do if found
1600 dnl             IF-NOT-FOUND = what to do if not found
1601 dnl
1602 dnl Use:        Configures an mLib client program.
1603
1604 AC_DEFUN([mdw_MLIB], [mdw_LIB_CONFIG(mLib, mLib, $@)])
1605
1606 dnl *@-mdw_MGLIB-@*
1607 dnl
1608 dnl Author:     Mark Wooding
1609 dnl
1610 dnl Synopsis:   mdw_MGLIB(VERSION, IF-FOUND, IF-NOT-FOUND
1611 dnl
1612 dnl Arguments:  VERSION = version of library required
1613 dnl             IF-FOUND = what to do if found
1614 dnl             IF-NOT-FOUND = what to do if not found
1615 dnl
1616 dnl Use:        Configures an mgLib client program.
1617
1618 AC_DEFUN([mdw_MGLIB],
1619 [mdw_REQUIRE([mdw_MLIB], [1.6.0])
1620 mdw_LIB_CONFIG(mgLib, mgLib, $@)])
1621
1622 dnl *@-mdw_CATACOMB-@*
1623 dnl
1624 dnl Author:     Mark Wooding
1625 dnl
1626 dnl Synopsis:   mdw_CATACOMB([VERSION], [IF-FOUND], [IF-NOT-FOUND])
1627 dnl
1628 dnl Arguments:  VERSION = version of Catacomb required
1629 dnl             IF-FOUND = what to do if found
1630 dnl             IF-NOT-FOUND = what to do if not found
1631 dnl
1632 dnl Use:        Configures the program as a Catacomb client.
1633
1634 AC_DEFUN([mdw_CATACOMB],
1635 [mdw_REQUIRE([mdw_MLIB], [1.6.0])
1636 mdw_LIB_CONFIG(catacomb, Catacomb, $@)])
1637
1638 dnl *@-mdw_PK-@*
1639 dnl
1640 dnl Author:     Mark Wooding
1641 dnl
1642 dnl Synopsis:   mdw_PK([VERSION], [IF-FOUND], [IF-NOT-FOUND])
1643 dnl
1644 dnl Arguments:  VERSION = version of PK required
1645 dnl             IF-FOUND = what to do if found
1646 dnl             IF-NOT-FOUND = what to do if not found
1647 dnl
1648 dnl Use:        Configures the program as a PK client.
1649
1650 AC_DEFUN([mdw_PK],
1651 [mdw_REQUIRE([mdw_MLIB], [1.6.0])
1652 mdw_LIB_CONFIG(pk, PK, $@)])
1653
1654 dnl --- *@-mdw_OPT_NDEBUG-@* ---
1655 dnl
1656 dnl Author:     Mark Wooding
1657 dnl
1658 dnl Synopsis:   mdw_OPT_NDEBUG
1659 dnl
1660 dnl Arguments:  ---
1661 dnl
1662 dnl Use:        Turns on the `NDEBUG' flag, to disable useful things like
1663 dnl             assertions.
1664
1665 AC_DEFUN([mdw_OPT_NDEBUG],
1666 [AC_ARG_ENABLE(debugging,
1667 [  --disable-debugging     spews vast swathes of useless information],
1668 [if test "$enableval" = "no"; then
1669   AC_DEFINE(NDEBUG, 1)
1670 fi])])
1671
1672 dnl --- *@-mdw_OPT_EFENCE-@* ---
1673 dnl
1674 dnl Author:     Mark Wooding
1675 dnl
1676 dnl Synopsis:   mdw_OPT_EFENCE
1677 dnl
1678 dnl Arguments:  ---
1679 dnl
1680 dnl Use:        Links with the Electric Fence library.
1681
1682 AC_DEFUN([mdw_OPT_EFENCE],
1683 [AC_ARG_WITH(electric-fence,
1684 [  --with-electric-fence   link programs with Electric Fence],
1685 [if test "$withval" = "yes"; then
1686   AC_CHECK_LIB(efence, malloc)
1687 fi])])
1688
1689 dnl --- *@-mdw_OPT_TRACE-@* ---
1690 dnl
1691 dnl Author:     Mark Wooding
1692 dnl
1693 dnl Synopsis:   mdw_OPT_TRACE
1694 dnl
1695 dnl Arguments:  ---
1696 dnl
1697 dnl Use:        Turns on the `NTRACE' flag, to disable useful things like
1698 dnl             trace outputs.
1699
1700 AC_DEFUN([mdw_OPT_TRACE],
1701 [AC_ARG_ENABLE(tracing,
1702 [  --disable-tracing       disable output of trace information],
1703 [if test "$enableval" = "no"; then
1704   AC_DEFINE(NTRACE, 1)
1705 fi])])
1706
1707 dnl --- *@-mdw_OPT_mLib_TRACK-@* ---
1708 dnl
1709 dnl Author:     Mark Wooding
1710 dnl
1711 dnl Synopsis:   mdw_OPT_mLib_TRACK(PROGRAM)
1712 dnl
1713 dnl Arguments:  PROGRAM = name of this program or package.
1714 dnl
1715 dnl Use:        Controls the unsupported mLib memory tracker.  The
1716 dnl             following are defined:
1717 dnl
1718 dnl               --enable-track          turns on malloc tracking
1719 dnl               --enable-blame-PROGRAM  tracks malloc contexts in PROGRAM
1720 dnl
1721 dnl             There must be  a separate `blame' option for each program,
1722 dnl             so that the various blame options in a hierarchy get
1723 dnl             propagated properly.  This is an obsolete feature from the
1724 dnl             days when mLib was provided as a subdirectory of other
1725 dnl             packages.
1726
1727 AC_DEFUN([mdw_OPT_mLib_TRACK],
1728 [AC_REQUIRE([mdw_OPT_TRACE])
1729 AC_ARG_ENABLE(track,
1730 [  --enable-track          enable tracking of malloc and free],
1731 [AC_DEFINE(TRACK_ENABLE, 1)])
1732 AC_ARG_ENABLE(blame-$1,
1733 [  --enable-blame-$1
1734                           track malloc contexts while in $1],
1735 [AC_DEFINE(TRACK_BLAME, 1)])])
1736
1737 dnl --- *@-mdw_OPT_mLib_DEBUG-@* ---
1738 dnl
1739 dnl Author:     Mark Wooding
1740 dnl
1741 dnl Synopsis:   mdw_OPT_mLib_DEBUG(PROGRAM)
1742 dnl
1743 dnl Arguments:  PROGRAM = name of this program or package.
1744 dnl
1745 dnl Use:        Provides all of the above debugging options.
1746
1747 AC_DEFUN([mdw_OPT_mLib_DEBUG],
1748 [mdw_REQUIRE([mdw_OPT_NDEBUG])
1749 mdw_REQUIRE([mdw_OPT_mLib_TRACK], [$1])])
1750
1751 dnl --- *@-mdw_DEFINE_PATHS-@*
1752 dnl
1753 dnl Author:     Mark Wooding
1754 dnl
1755 dnl Synopsis:   mdw_DEFINE_FILES(CODE)
1756 dnl
1757 dnl Arguments:  CODE = shell script code to execute
1758 dnl
1759 dnl Use:        Fixes up various variables so that pathname defines can be
1760 dnl             defined.  Within CODE, you may use the following macros:
1761 dnl
1762 dnl             mdw_PROG(NAME)          Transformed program name
1763 dnl
1764 dnl             mdw_PATH(PATH)          Expanded path (may contain variables)
1765 dnl
1766 dnl             mdw_DEFINE_PROG(SYMBOL, PROG)
1767 dnl                                     Define a symbol as a transformed
1768 dnl                                     program name.
1769 dnl
1770 dnl             mdw_DEFINE_PATH(SYMBOL, NAME)
1771 dnl                                     Define a symbol as an expanded path
1772
1773 AC_DEFUN([mdw_DEFINE_PATHS],
1774 [mdw_prefix=$prefix mdw_exec_prefix=$exec_prefix
1775 mdw_transform=`echo "$program_transform_name"|sed 's,\\\\\\\\,\\\\,g; s,\\$\\$,$,g'`
1776 test "$prefix" = "NONE" && prefix=$ac_default_prefix
1777 test "$exec_prefix" = "NONE" && exec_prefix=$prefix
1778 $1
1779 prefix=$mdw_prefix exec_prefix=$mdw_exec_prefix])
1780
1781 AC_DEFUN([mdw_PROG], [`echo "$1"|sed "$mdw_transform"`])
1782 AC_DEFUN([mdw_PATH], [dnl
1783 `t="$1"; dnl
1784 while :; do dnl
1785 case "$t" in dnl
1786 *\\$[]*) t=\`eval echo "$t"\`;; dnl
1787 *) break;; dnl
1788 esac; done; dnl
1789 echo "$t"`])
1790 AC_DEFUN([mdw_DEFINE_PROG], [AC_DEFINE_UNQUOTED([$1], ["mdw_PROG([$2])"])])
1791 AC_DEFUN([mdw_DEFINE_PATH], [AC_DEFINE_UNQUOTED([$1], ["mdw_PATH([$2])"])])
1792
1793 dnl --- *@-mdw_DIR_TEXMF-@* ---
1794 dnl
1795 dnl Author:     Mark Wooding
1796 dnl
1797 dnl Synopsis:   mdw_DIR_TEXMF
1798 dnl
1799 dnl Arguments:  ---
1800 dnl
1801 dnl Use:        Sets the substitution `texmfdir' as a sensible TeX install
1802 dnl             tree.
1803
1804 AC_DEFUN([mdw_DIR_TEXMF], [
1805 AC_ARG_WITH([texmfdir],
1806 [  --with-texmfdir=DIR     set the TeX install directory to DIR],
1807 [texmfdir=$withval],
1808 [AC_MSG_CHECKING([where to put installed TeX files])
1809 mdw_DEFINE_PATHS([
1810 texmfdir='${datadir}/texmf'
1811 for d in \
1812   '${datadir}/texmf' '${prefix}/lib/texmf' \
1813   '${prefix}/texmf' '${libdir}/lib/texmf'; do
1814   if test -d "mdw_PATH([$d])"; then
1815     texmfdir=$d
1816     break
1817   fi
1818 done
1819 AC_MSG_RESULT([$texmfdir])])])
1820 AC_SUBST(texmfdir)])
1821
1822 dnl --- *@-mdw_MANEXT-@* ---
1823 dnl
1824 dnl Author:     Mark Wooding
1825 dnl
1826 dnl Synopsis:   mdw_MANEXT
1827 dnl
1828 dnl Arguments:  ---
1829 dnl
1830 dnl Use:        Sets the substitution `manext' for man page extensions.
1831
1832 AC_DEFUN([mdw_MANEXT], [
1833 AC_ARG_WITH([man-ext],
1834 [  --with-man-ext=EXT      give manpages the EXT extension (e.g., foo.3EXT)],
1835 [manext=$withval], [manext=mLib])
1836 AC_SUBST(manext)])
1837
1838 dnl----- That's all, folks --------------------------------- *@--GLOB-END--@*