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

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