aclocal.m4

   1 dnl aclocal.m4 generated automatically by aclocal 1.4
   2
   3 dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc.
   4 dnl This file is free software; the Free Software Foundation
   5 dnl gives unlimited permission to copy and/or distribute it,
   6 dnl with or without modifications, as long as this notice is preserved.
   7
   8 dnl This program is distributed in the hope that it will be useful,
   9 dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without
  10 dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A
  11 dnl PARTICULAR PURPOSE.
  12
  13 dnl  On the NeXT, #including <utime.h> doesn't give you a definition for
  14 dnl  struct utime, unless you #define _POSIX_SOURCE.
  15
  16 AC_DEFUN(GUILE_STRUCT_UTIMBUF, [
  17   AC_CACHE_CHECK([whether we need POSIX to get struct utimbuf],
  18     guile_cv_struct_utimbuf_needs_posix,
  19     [AC_TRY_CPP([
  20 #ifdef __EMX__
  21 #include <sys/utime.h>
  22 #else
  23 #include <utime.h>
  24 #endif
  25 struct utime blah;
  26 ],
  27                 guile_cv_struct_utimbuf_needs_posix=no,
  28                 guile_cv_struct_utimbuf_needs_posix=yes)])
  29   if test "$guile_cv_struct_utimbuf_needs_posix" = yes; then
  30      AC_DEFINE(UTIMBUF_NEEDS_POSIX)
  31   fi])
  32
  33
  34
  35
  36 dnl
  37 dnl Apparently, at CMU they have a weird version of libc.h that is
  38 dnl installed in /usr/local/include and conflicts with unistd.h.
  39 dnl In these situations, we should not #include libc.h.
  40 dnl This test arranges to #define LIBC_H_WITH_UNISTD_H iff libc.h is
  41 dnl present on the system, and is safe to #include.
  42 dnl
  43 AC_DEFUN([GUILE_HEADER_LIBC_WITH_UNISTD],
  44   [
  45     AC_CHECK_HEADERS(libc.h unistd.h)
  46     AC_CACHE_CHECK(
  47       "whether libc.h and unistd.h can be included together",
  48       guile_cv_header_libc_with_unistd,
  49       [
  50         if test "$ac_cv_header_libc_h" = "no"; then
  51           guile_cv_header_libc_with_unistd="no"
  52         elif test "$ac_cv_header_unistd.h" = "no"; then
  53           guile_cv_header_libc_with_unistd="yes"
  54         else
  55           AC_TRY_COMPILE(
  56             [
  57 #             include <libc.h>
  58 #             include <unistd.h>
  59             ],
  60             [],
  61             [guile_cv_header_libc_with_unistd=yes],
  62             [guile_cv_header_libc_with_unistd=no]
  63           )
  64         fi
  65       ]
  66     )
  67     if test "$guile_cv_header_libc_with_unistd" = yes; then
  68       AC_DEFINE(LIBC_H_WITH_UNISTD_H)
  69     fi
  70   ]
  71 )
  72
  73
  74
  75 dnl This is needed when we want to check for the same function repeatedly
  76 dnl with other parameters, such as libraries, varying.
  77 dnl
  78 dnl GUILE_NAMED_CHECK_FUNC(FUNCTION, TESTNAME,
  79 dnl                        [ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
  80 AC_DEFUN(GUILE_NAMED_CHECK_FUNC,
  81 [AC_MSG_CHECKING([for $1])
  82 AC_CACHE_VAL(ac_cv_func_$1_$2,
  83 [AC_TRY_LINK(
  84 dnl Don't include <ctype.h> because on OSF/1 3.0 it includes <sys/types.h>
  85 dnl which includes <sys/select.h> which contains a prototype for
  86 dnl select.  Similarly for bzero.
  87 [/* System header to define __stub macros and hopefully few prototypes,
  88     which can conflict with char $1(); below.  */
  89 #include <assert.h>
  90 /* Override any gcc2 internal prototype to avoid an error.  */
  91 ]ifelse(AC_LANG, CPLUSPLUS, [#ifdef __cplusplus
  92 extern "C"
  93 #endif
  94 ])dnl
  95 [/* We use char because int might match the return type of a gcc2
  96     builtin and then its argument prototype would still apply.  */
  97 char $1();
  98 ], [
  99 /* The GNU C library defines this for functions which it implements
 100     to always fail with ENOSYS.  Some functions are actually named
 101     something starting with __ and the normal name is an alias.  */
 102 #if defined (__stub_$1) || defined (__stub___$1)
 103 choke me
 104 #else
 105 $1();
 106 #endif
 107 ], eval "ac_cv_func_$1_$2=yes", eval "ac_cv_func_$1_$2=no")])
 108 if eval "test \"`echo '$ac_cv_func_'$1'_'$2`\" = yes"; then
 109   AC_MSG_RESULT(yes)
 110   ifelse([$3], , :, [$3])
 111 else
 112   AC_MSG_RESULT(no)
 113 ifelse([$4], , , [$4
 114 ])dnl
 115 fi
 116 ])
 117
 118
 119
 120 dnl Check checks whether dlsym (if present) requires a leading underscore.
 121 dnl Written by Dan Hagerty <hag@ai.mit.edu> for scsh-0.5.0.
 122 AC_DEFUN(GUILE_DLSYM_USCORE, [
 123   AC_MSG_CHECKING(for underscore before symbols)
 124   AC_CACHE_VAL(guile_cv_uscore,[
 125     echo "main(){int i=1;}
 126     fnord(){int i=23; int ltuae=42;}" > conftest.c
 127     ${CC} conftest.c > /dev/null
 128     if (nm a.out | grep _fnord) > /dev/null; then
 129       guile_cv_uscore=yes
 130     else
 131       guile_cv_uscore=no
 132     fi])
 133   AC_MSG_RESULT($guile_cv_uscore)
 134   rm -f conftest.c a.out
 135
 136   if test $guile_cv_uscore = yes; then
 137     AC_DEFINE(USCORE)
 138
 139     if test $ac_cv_func_dlopen = yes -o $ac_cv_lib_dl_dlopen = yes ; then
 140         AC_MSG_CHECKING(whether dlsym always adds an underscore for us)
 141         AC_CACHE_VAL(guile_cv_dlsym_adds_uscore,AC_TRY_RUN( [
 142 #include <dlfcn.h>
 143 #include <stdio.h>
 144 fnord() { int i=42;}
 145 main() { void *self, *ptr1, *ptr2; self=dlopen(NULL,RTLD_LAZY);
 146     if(self) { ptr1=dlsym(self,"fnord"); ptr2=dlsym(self,"_fnord");
 147     if(ptr1 && !ptr2) exit(0); } exit(1); }
 148 ], [guile_cv_dlsym_adds_uscore=yes
 149         AC_DEFINE(DLSYM_ADDS_USCORE) ], guile_cv_dlsym_adds_uscore=no,
 150         guile_cv_dlsym_adds_uscore=no))
 151
 152         AC_MSG_RESULT($guile_cv_dlsym_adds_uscore)
 153     fi
 154   fi
 155 ])
 156
 157 # Do all the work for Automake.  This macro actually does too much --
 158 # some checks are only needed if your package does certain things.
 159 # But this isn't really a big deal.
 160
 161 # serial 1
 162
 163 dnl Usage:
 164 dnl AM_INIT_AUTOMAKE(package,version, [no-define])
 165
 166 AC_DEFUN(AM_INIT_AUTOMAKE,
 167 [AC_REQUIRE([AC_PROG_INSTALL])
 168 PACKAGE=[$1]
 169 AC_SUBST(PACKAGE)
 170 VERSION=[$2]
 171 AC_SUBST(VERSION)
 172 dnl test to see if srcdir already configured
 173 if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
 174   AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 175 fi
 176 ifelse([$3],,
 177 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
 178 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
 179 AC_REQUIRE([AM_SANITY_CHECK])
 180 AC_REQUIRE([AC_ARG_PROGRAM])
 181 dnl FIXME This is truly gross.
 182 missing_dir=`cd $ac_aux_dir && pwd`
 183 AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
 184 AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
 185 AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
 186 AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
 187 AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
 188 AC_REQUIRE([AC_PROG_MAKE_SET])])
 189
 190 #
 191 # Check to make sure that the build environment is sane.
 192 #
 193
 194 AC_DEFUN(AM_SANITY_CHECK,
 195 [AC_MSG_CHECKING([whether build environment is sane])
 196 # Just in case
 197 sleep 1
 198 echo timestamp > conftestfile
 199 # Do `set' in a subshell so we don't clobber the current shell's
 200 # arguments.  Must try -L first in case configure is actually a
 201 # symlink; some systems play weird games with the mod time of symlinks
 202 # (eg FreeBSD returns the mod time of the symlink's containing
 203 # directory).
 204 if (
 205    set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
 206    if test "[$]*" = "X"; then
 207       # -L didn't work.
 208       set X `ls -t $srcdir/configure conftestfile`
 209    fi
 210    if test "[$]*" != "X $srcdir/configure conftestfile" \
 211       && test "[$]*" != "X conftestfile $srcdir/configure"; then
 212
 213       # If neither matched, then we have a broken ls.  This can happen
 214       # if, for instance, CONFIG_SHELL is bash and it inherits a
 215       # broken ls alias from the environment.  This has actually
 216       # happened.  Such a system could not be considered "sane".
 217       AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 218 alias in your environment])
 219    fi
 220
 221    test "[$]2" = conftestfile
 222    )
 223 then
 224    # Ok.
 225    :
 226 else
 227    AC_MSG_ERROR([newly created file is older than distributed files!
 228 Check your system clock])
 229 fi
 230 rm -f conftest*
 231 AC_MSG_RESULT(yes)])
 232
 233 dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
 234 dnl The program must properly implement --version.
 235 AC_DEFUN(AM_MISSING_PROG,
 236 [AC_MSG_CHECKING(for working $2)
 237 # Run test in a subshell; some versions of sh will print an error if
 238 # an executable is not found, even if stderr is redirected.
 239 # Redirect stdin to placate older versions of autoconf.  Sigh.
 240 if ($2 --version) < /dev/null > /dev/null 2>&1; then
 241    $1=$2
 242    AC_MSG_RESULT(found)
 243 else
 244    $1="$3/missing $2"
 245    AC_MSG_RESULT(missing)
 246 fi
 247 AC_SUBST($1)])
 248
 249 # Add --enable-maintainer-mode option to configure.
 250 # From Jim Meyering
 251
 252 # serial 1
 253
 254 AC_DEFUN(AM_MAINTAINER_MODE,
 255 [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 256   dnl maintainer-mode is disabled by default
 257   AC_ARG_ENABLE(maintainer-mode,
 258 [  --enable-maintainer-mode enable make rules and dependencies not useful
 259                           (and sometimes confusing) to the casual installer],
 260       USE_MAINTAINER_MODE=$enableval,
 261       USE_MAINTAINER_MODE=no)
 262   AC_MSG_RESULT($USE_MAINTAINER_MODE)
 263   AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
 264   MAINT=$MAINTAINER_MODE_TRUE
 265   AC_SUBST(MAINT)dnl
 266 ]
 267 )
 268
 269 # Define a conditional.
 270
 271 AC_DEFUN(AM_CONDITIONAL,
 272 [AC_SUBST($1_TRUE)
 273 AC_SUBST($1_FALSE)
 274 if $2; then
 275   $1_TRUE=
 276   $1_FALSE='#'
 277 else
 278   $1_TRUE='#'
 279   $1_FALSE=
 280 fi])
 281
 282 # Like AC_CONFIG_HEADER, but automatically create stamp file.
 283
 284 AC_DEFUN(AM_CONFIG_HEADER,
 285 [AC_PREREQ([2.12])
 286 AC_CONFIG_HEADER([$1])
 287 dnl When config.status generates a header, we must update the stamp-h file.
 288 dnl This file resides in the same directory as the config header
 289 dnl that is generated.  We must strip everything past the first ":",
 290 dnl and everything past the last "/".
 291 AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl
 292 ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>,
 293 <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>,
 294 <<am_indx=1
 295 for am_file in <<$1>>; do
 296   case " <<$>>CONFIG_HEADERS " in
 297   *" <<$>>am_file "*<<)>>
 298     echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx
 299     ;;
 300   esac
 301   am_indx=`expr "<<$>>am_indx" + 1`
 302 done<<>>dnl>>)
 303 changequote([,]))])
 304
 305
 306 # serial 24 AM_PROG_LIBTOOL
 307 AC_DEFUN(AM_PROG_LIBTOOL,
 308 [AC_REQUIRE([AM_ENABLE_SHARED])dnl
 309 AC_REQUIRE([AM_ENABLE_STATIC])dnl
 310 AC_REQUIRE([AC_CANONICAL_HOST])dnl
 311 AC_REQUIRE([AC_PROG_RANLIB])dnl
 312 AC_REQUIRE([AC_PROG_CC])dnl
 313 AC_REQUIRE([AM_PROG_LD])dnl
 314 AC_REQUIRE([AM_PROG_NM])dnl
 315 AC_REQUIRE([AC_PROG_LN_S])dnl
 316 dnl
 317 # Always use our own libtool.
 318 LIBTOOL='$(SHELL) $(top_builddir)/libtool'
 319 AC_SUBST(LIBTOOL)dnl
 320
 321 # Check for any special flags to pass to ltconfig.
 322 libtool_flags=
 323 test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"
 324 test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"
 325 test "$silent" = yes && libtool_flags="$libtool_flags --silent"
 326 test "$ac_cv_prog_gcc" = yes && libtool_flags="$libtool_flags --with-gcc"
 327 test "$ac_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"
 328
 329 # Some flags need to be propagated to the compiler or linker for good
 330 # libtool support.
 331 case "$host" in
 332 *-*-irix6*)
 333   # Find out which ABI we are using.
 334   echo '[#]line __oline__ "configure"' > conftest.$ac_ext
 335   if AC_TRY_EVAL(ac_compile); then
 336     case "`/usr/bin/file conftest.o`" in
 337     *32-bit*)
 338       LD="${LD-ld} -32"
 339       ;;
 340     *N32*)
 341       LD="${LD-ld} -n32"
 342       ;;
 343     *64-bit*)
 344       LD="${LD-ld} -64"
 345       ;;
 346     esac
 347   fi
 348   rm -rf conftest*
 349   ;;
 350
 351 *-*-sco3.2v5*)
 352   # On SCO OpenServer 5, we need -belf to get full-featured binaries.
 353   CFLAGS="$CFLAGS -belf"
 354   ;;
 355 esac
 356
 357 # Actually configure libtool.  ac_aux_dir is where install-sh is found.
 358 CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \
 359 LD="$LD" NM="$NM" RANLIB="$RANLIB" LN_S="$LN_S" \
 360 ${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig \
 361 $libtool_flags --no-verify $ac_aux_dir/ltmain.sh $host \
 362 || AC_MSG_ERROR([libtool configure failed])
 363 ])
 364
 365 # AM_ENABLE_SHARED - implement the --enable-shared flag
 366 # Usage: AM_ENABLE_SHARED[(DEFAULT)]
 367 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
 368 #   `yes'.
 369 AC_DEFUN(AM_ENABLE_SHARED,
 370 [define([AM_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl
 371 AC_ARG_ENABLE(shared,
 372 changequote(<<, >>)dnl
 373 <<  --enable-shared         build shared libraries [default=>>AM_ENABLE_SHARED_DEFAULT]
 374 changequote([, ])dnl
 375 [  --enable-shared=PKGS    only build shared libraries if the current package
 376                           appears as an element in the PKGS list],
 377 [p=${PACKAGE-default}
 378 case "$enableval" in
 379 yes) enable_shared=yes ;;
 380 no) enable_shared=no ;;
 381 *)
 382   enable_shared=no
 383   # Look at the argument we got.  We use all the common list separators.
 384   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 385   for pkg in $enableval; do
 386     if test "X$pkg" = "X$p"; then
 387       enable_shared=yes
 388     fi
 389   done
 390   IFS="$ac_save_ifs"
 391   ;;
 392 esac],
 393 enable_shared=AM_ENABLE_SHARED_DEFAULT)dnl
 394 ])
 395
 396 # AM_DISABLE_SHARED - set the default shared flag to --disable-shared
 397 AC_DEFUN(AM_DISABLE_SHARED,
 398 [AM_ENABLE_SHARED(no)])
 399
 400 # AM_DISABLE_STATIC - set the default static flag to --disable-static
 401 AC_DEFUN(AM_DISABLE_STATIC,
 402 [AM_ENABLE_STATIC(no)])
 403
 404 # AM_ENABLE_STATIC - implement the --enable-static flag
 405 # Usage: AM_ENABLE_STATIC[(DEFAULT)]
 406 #   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to
 407 #   `yes'.
 408 AC_DEFUN(AM_ENABLE_STATIC,
 409 [define([AM_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl
 410 AC_ARG_ENABLE(static,
 411 changequote(<<, >>)dnl
 412 <<  --enable-static         build static libraries [default=>>AM_ENABLE_STATIC_DEFAULT]
 413 changequote([, ])dnl
 414 [  --enable-static=PKGS    only build shared libraries if the current package
 415                           appears as an element in the PKGS list],
 416 [p=${PACKAGE-default}
 417 case "$enableval" in
 418 yes) enable_static=yes ;;
 419 no) enable_static=no ;;
 420 *)
 421   enable_static=no
 422   # Look at the argument we got.  We use all the common list separators.
 423   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"
 424   for pkg in $enableval; do
 425     if test "X$pkg" = "X$p"; then
 426       enable_static=yes
 427     fi
 428   done
 429   IFS="$ac_save_ifs"
 430   ;;
 431 esac],
 432 enable_static=AM_ENABLE_STATIC_DEFAULT)dnl
 433 ])
 434
 435
 436 # AM_PROG_LD - find the path to the GNU or non-GNU linker
 437 AC_DEFUN(AM_PROG_LD,
 438 [AC_ARG_WITH(gnu-ld,
 439 [  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],
 440 test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)
 441 AC_REQUIRE([AC_PROG_CC])
 442 ac_prog=ld
 443 if test "$ac_cv_prog_gcc" = yes; then
 444   # Check if gcc -print-prog-name=ld gives a path.
 445   AC_MSG_CHECKING([for ld used by GCC])
 446   ac_prog=`($CC -print-prog-name=ld) 2>&5`
 447   case "$ac_prog" in
 448   # Accept absolute paths.
 449   /* | [A-Za-z]:\\*)
 450     test -z "$LD" && LD="$ac_prog"
 451     ;;
 452   "")
 453     # If it fails, then pretend we aren't using GCC.
 454     ac_prog=ld
 455     ;;
 456   *)
 457     # If it is relative, then search for the first ld in PATH.
 458     with_gnu_ld=unknown
 459     ;;
 460   esac
 461 elif test "$with_gnu_ld" = yes; then
 462   AC_MSG_CHECKING([for GNU ld])
 463 else
 464   AC_MSG_CHECKING([for non-GNU ld])
 465 fi
 466 AC_CACHE_VAL(ac_cv_path_LD,
 467 [if test -z "$LD"; then
 468   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
 469   for ac_dir in $PATH; do
 470     test -z "$ac_dir" && ac_dir=.
 471     if test -f "$ac_dir/$ac_prog"; then
 472       ac_cv_path_LD="$ac_dir/$ac_prog"
 473       # Check to see if the program is GNU ld.  I'd rather use --version,
 474       # but apparently some GNU ld's only accept -v.
 475       # Break only if it was the GNU/non-GNU ld that we prefer.
 476       if "$ac_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
 477         test "$with_gnu_ld" != no && break
 478       else
 479         test "$with_gnu_ld" != yes && break
 480       fi
 481     fi
 482   done
 483   IFS="$ac_save_ifs"
 484 else
 485   ac_cv_path_LD="$LD" # Let the user override the test with a path.
 486 fi])
 487 LD="$ac_cv_path_LD"
 488 if test -n "$LD"; then
 489   AC_MSG_RESULT($LD)
 490 else
 491   AC_MSG_RESULT(no)
 492 fi
 493 test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
 494 AC_SUBST(LD)
 495 AM_PROG_LD_GNU
 496 ])
 497
 498 AC_DEFUN(AM_PROG_LD_GNU,
 499 [AC_CACHE_CHECK([if the linker ($LD) is GNU ld], ac_cv_prog_gnu_ld,
 500 [# I'd rather use --version here, but apparently some GNU ld's only accept -v.
 501 if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
 502   ac_cv_prog_gnu_ld=yes
 503 else
 504   ac_cv_prog_gnu_ld=no
 505 fi])
 506 ])
 507
 508 # AM_PROG_NM - find the path to a BSD-compatible name lister
 509 AC_DEFUN(AM_PROG_NM,
 510 [AC_MSG_CHECKING([for BSD-compatible nm])
 511 AC_CACHE_VAL(ac_cv_path_NM,
 512 [case "$NM" in
 513 /* | [A-Za-z]:\\*)
 514   ac_cv_path_NM="$NM" # Let the user override the test with a path.
 515   ;;
 516 *)
 517   IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:"
 518   for ac_dir in /usr/ucb /usr/ccs/bin $PATH /bin; do
 519     test -z "$ac_dir" && ac_dir=.
 520     if test -f $ac_dir/nm; then
 521       # Check to see if the nm accepts a BSD-compat flag.
 522       # Adding the `sed 1q' prevents false positives on HP-UX, which says:
 523       #   nm: unknown option "B" ignored
 524       if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
 525         ac_cv_path_NM="$ac_dir/nm -B"
 526       elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
 527         ac_cv_path_NM="$ac_dir/nm -p"
 528       else
 529         ac_cv_path_NM="$ac_dir/nm"
 530       fi
 531       break
 532     fi
 533   done
 534   IFS="$ac_save_ifs"
 535   test -z "$ac_cv_path_NM" && ac_cv_path_NM=nm
 536   ;;
 537 esac])
 538 NM="$ac_cv_path_NM"
 539 AC_MSG_RESULT([$NM])
 540 AC_SUBST(NM)
 541 ])
 542
 543
 544 # serial 1
 545
 546 # @defmac AC_PROG_CC_STDC
 547 # @maindex PROG_CC_STDC
 548 # @ovindex CC
 549 # If the C compiler in not in ANSI C mode by default, try to add an option
 550 # to output variable @code{CC} to make it so.  This macro tries various
 551 # options that select ANSI C on some system or another.  It considers the
 552 # compiler to be in ANSI C mode if it handles function prototypes correctly.
 553 #
 554 # If you use this macro, you should check after calling it whether the C
 555 # compiler has been set to accept ANSI C; if not, the shell variable
 556 # @code{am_cv_prog_cc_stdc} is set to @samp{no}.  If you wrote your source
 557 # code in ANSI C, you can make an un-ANSIfied copy of it by using the
 558 # program @code{ansi2knr}, which comes with Ghostscript.
 559 # @end defmac
 560
 561 AC_DEFUN(AM_PROG_CC_STDC,
 562 [AC_REQUIRE([AC_PROG_CC])
 563 AC_BEFORE([$0], [AC_C_INLINE])
 564 AC_BEFORE([$0], [AC_C_CONST])
 565 dnl Force this before AC_PROG_CPP.  Some cpp's, eg on HPUX, require
 566 dnl a magic option to avoid problems with ANSI preprocessor commands
 567 dnl like #elif.
 568 dnl FIXME: can't do this because then AC_AIX won't work due to a
 569 dnl circular dependency.
 570 dnl AC_BEFORE([$0], [AC_PROG_CPP])
 571 AC_MSG_CHECKING(for ${CC-cc} option to accept ANSI C)
 572 AC_CACHE_VAL(am_cv_prog_cc_stdc,
 573 [am_cv_prog_cc_stdc=no
 574 ac_save_CC="$CC"
 575 # Don't try gcc -ansi; that turns off useful extensions and
 576 # breaks some systems' header files.
 577 # AIX                   -qlanglvl=ansi
 578 # Ultrix and OSF/1      -std1
 579 # HP-UX                 -Aa -D_HPUX_SOURCE
 580 # SVR4                  -Xc -D__EXTENSIONS__
 581 for ac_arg in "" -qlanglvl=ansi -std1 "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
 582 do
 583   CC="$ac_save_CC $ac_arg"
 584   AC_TRY_COMPILE(
 585 [#include <stdarg.h>
 586 #include <stdio.h>
 587 #include <sys/types.h>
 588 #include <sys/stat.h>
 589 /* Most of the following tests are stolen from RCS 5.7's src/conf.sh.  */
 590 struct buf { int x; };
 591 FILE * (*rcsopen) (struct buf *, struct stat *, int);
 592 static char *e (p, i)
 593      char **p;
 594      int i;
 595 {
 596   return p[i];
 597 }
 598 static char *f (char * (*g) (char **, int), char **p, ...)
 599 {
 600   char *s;
 601   va_list v;
 602   va_start (v,p);
 603   s = g (p, va_arg (v,int));
 604   va_end (v);
 605   return s;
 606 }
 607 int test (int i, double x);
 608 struct s1 {int (*f) (int a);};
 609 struct s2 {int (*f) (double a);};
 610 int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
 611 int argc;
 612 char **argv;
 613 ], [
 614 return f (e, argv, 0) != argv[0]  ||  f (e, argv, 1) != argv[1];
 615 ],
 616 [am_cv_prog_cc_stdc="$ac_arg"; break])
 617 done
 618 CC="$ac_save_CC"
 619 ])
 620 if test -z "$am_cv_prog_cc_stdc"; then
 621   AC_MSG_RESULT([none needed])
 622 else
 623   AC_MSG_RESULT($am_cv_prog_cc_stdc)
 624 fi
 625 case "x$am_cv_prog_cc_stdc" in
 626   x|xno) ;;
 627   *) CC="$CC $am_cv_prog_cc_stdc" ;;
 628 esac
 629 ])
 630
 631 dnl   Autoconf macros for configuring the QuickThreads package
 632
 633 dnl   QTHREADS_CONFIGURE configures the QuickThreads package.  The QT
 634 dnl   sources should be in $srcdir/qt.  If configuration succeeds, this
 635 dnl   macro creates the appropriate symlinks in the qt object directory,
 636 dnl   and sets the following variables, used in building libqthreads.a:
 637 dnl      QTHREAD_LTLIBS --- set to libqthreads.la if configuration
 638 dnl         succeeds, or the empty string if configuration fails.
 639 dnl      qtmd_h, qtmds_s, qtmdc_c, qtdmdb_s --- the names of the machine-
 640 dnl         dependent source files.
 641 dnl      qthread_asflags --- flags to pass to the compiler when processing
 642 dnl         assembly-language files.
 643 dnl
 644 dnl   It also sets the following variables, which describe how clients
 645 dnl   can link against libqthreads.a:
 646 dnl      THREAD_PACKAGE --- set to "QT" if configuration succeeds, or
 647 dnl         the empty string if configuration fails.
 648 dnl      THREAD_CPPFLAGS --- set to `-I' flags for thread header files
 649 dnl      THREAD_LIBS_LOCAL --- linker options for use in this source tree
 650 dnl      THREAD_LIBS_INSTALLED --- linker options for use after this package
 651 dnl         is installed
 652 dnl   It would be nice if all thread configuration packages for Guile
 653 dnl   followed the same conventions.
 654 dnl
 655 dnl   All of the above variables will be substituted into Makefiles in
 656 dnl   the usual autoconf fashion.
 657 dnl
 658 dnl   We distinguish between THREAD_LIBS_LOCAL and
 659 dnl   THREAD_LIBS_INSTALLED because the thread library might be in
 660 dnl   this tree, and be built using libtool.  This means that:
 661 dnl      1) when building other executables in this tree, one must
 662 dnl         pass the relative path to the ../libfoo.la file, but
 663 dnl      2) once the whole package has been installed, users should
 664 dnl         link using -lfoo.
 665 dnl   Normally, we only care about the first case, but since the
 666 dnl   guile-config script needs to give users all the flags they need
 667 dnl   to link programs against guile, the GUILE_WITH_THREADS macro
 668 dnl   needs to supply the second piece of information as well.
 669 dnl
 670 dnl   This whole thing is a little confused about what ought to be
 671 dnl   done in the top-level configure script, and what ought to be
 672 dnl   taken care of in the subdirectory.  For example, qtmds_s and
 673 dnl   friends really ought not to be even mentioned in the top-level
 674 dnl   configure script, but here they are.
 675
 676 AC_DEFUN([QTHREADS_CONFIGURE],[
 677   AC_REQUIRE([AC_PROG_LN_S])
 678
 679   AC_MSG_CHECKING(QuickThreads configuration)
 680   # How can we refer to the qt source directory from within the qt build
 681   # directory?  For headers, we can rely on the fact that the qt src
 682   # directory appears in the #include path.
 683   qtsrcdir="`(cd $srcdir; pwd)`/qt"
 684
 685   changequote(,)dnl We use [ and ] in a regexp in the case
 686
 687   THREAD_PACKAGE=QT
 688   qthread_asflags=''
 689   case "$host" in
 690     i[3456]86-*-*)
 691       port_name=i386
 692       qtmd_h=md/i386.h
 693       qtmds_s=md/i386.s
 694       qtmdc_c=md/null.c
 695       qtdmdb_s=
 696       case "$host" in
 697         *-*-netbsd* )
 698           ## NetBSD needs to be told to pass the assembly code through
 699           ## the C preprocessor.  Other GCC installations seem to do
 700           ## this by default, but NetBSD's doesn't.  We could get the
 701           ## same effect by giving the file a name ending with .S
 702           ## instead of .s, but I don't see how to tell automake to do
 703           ## that.
 704           qthread_asflags='-x assembler-with-cpp'
 705         ;;
 706       esac
 707       ;;
 708     mips-sgi-irix[56]*)
 709       port_name=irix
 710       qtmd_h=md/mips.h
 711       qtmds_s=md/mips-irix5.s
 712       qtmdc_c=md/null.c
 713       qtdmdb_s=md/mips_b.s
 714       ;;
 715     mips-*-*)
 716       port_name=mips
 717       qtmd_h=md/mips.h
 718       qtmds_s=md/mips.s
 719       qtmdc_c=md/null.c
 720       qtdmdb_s=md/mips_b.s
 721       ;;
 722     sparc-*-sunos*)
 723       port_name=sparc-sunos
 724       qtmd_h=md/sparc.h
 725       qtmds_s=md/_sparc.s
 726       qtmdc_c=md/null.c
 727       qtdmdb_s=md/_sparc_b.s
 728       ;;
 729     sparc-*-*)
 730       port_name=sparc
 731       qtmd_h=md/sparc.h
 732       qtmds_s=md/sparc.s
 733       qtmdc_c=md/null.c
 734       qtdmdb_s=md/sparc_b.s
 735       ;;
 736     alpha-*-*)
 737       port_name=alpha
 738       qtmd_h=md/axp.h
 739       qtmds_s=md/axp.s
 740       qtmdc_c=md/null.c
 741       qtdmdb_s=md/axp_b.s
 742       ;;
 743     *)
 744       echo "Unknown configuration; threads package disabled"
 745       THREAD_PACKAGE=""
 746       ;;
 747   esac
 748   changequote([, ])
 749
 750   # Did configuration succeed?
 751   if test -n "$THREAD_PACKAGE"; then
 752     AC_MSG_RESULT($port_name)
 753     QTHREAD_LTLIBS=libqthreads.la
 754     THREAD_CPPFLAGS="-I$qtsrcdir -I../qt"
 755     THREAD_LIBS_LOCAL="../qt/libqthreads.la"
 756     THREAD_LIBS_INSTALLED="-lqthreads"
 757   else
 758     AC_MSG_RESULT(none; disabled)
 759   fi
 760
 761   AC_SUBST(QTHREAD_LTLIBS)
 762   AC_SUBST(qtmd_h)
 763   AC_SUBST(qtmds_s)
 764   AC_SUBST(qtmdc_c)
 765   AC_SUBST(qtdmdb_s)
 766   AC_SUBST(qthread_asflags)
 767   AC_SUBST(THREAD_PACKAGE)
 768   AC_SUBST(THREAD_CPPFLAGS)
 769   AC_SUBST(THREAD_LIBS_LOCAL)
 770   AC_SUBST(THREAD_LIBS_INSTALLED)
 771 ])
 772