configure.in

   1 dnl   configuration script for Guile
   2 dnl   Process this file with autoconf to produce configure.
   3 dnl
   4 dnl  Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
   5 dnl
   6 dnl  This file is part of GUILE
   7 dnl
   8 dnl  GUILE is free software; you can redistribute it and/or modify it
   9 dnl  under the terms of the GNU General Public License as published by
  10 dnl  the Free Software Foundation; either version 2, or (at your
  11 dnl  option) any later version.
  12 dnl
  13 dnl  GUILE is distributed in the hope that it will be useful, but
  14 dnl  WITHOUT ANY WARRANTY; without even the implied warranty of
  15 dnl  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 dnl  General Public License for more details.
  17 dnl
  18 dnl  You should have received a copy of the GNU General Public License
  19 dnl  along with GUILE; see the file COPYING.  If not, write to the
  20 dnl  Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  21 dnl  Boston, MA 02111-1307, USA.
  22
  23 AC_INIT(Makefile.in)
  24 . $srcdir/GUILE-VERSION
  25 AM_INIT_AUTOMAKE($PACKAGE, $VERSION, no-define)
  26 AM_MAINTAINER_MODE
  27 AM_CONFIG_HEADER(libguile/scmconfig.h)
  28
  29 #--------------------------------------------------------------------
  30 #
  31 # Independent Subdirectories
  32 #
  33 #--------------------------------------------------------------------
  34
  35 AC_CONFIG_SUBDIRS(guile-readline)
  36
  37 #--------------------------------------------------------------------
  38 #
  39 # User options
  40 #
  41 #--------------------------------------------------------------------
  42
  43 AC_ARG_ENABLE(guile-debug,
  44   [  --enable-guile-debug    include internal debugging functions],
  45   if test "$enable_guile_debug" = y || test "$enable_guile_debug" = yes; then
  46     AC_DEFINE(GUILE_DEBUG)
  47   fi)
  48
  49 AC_ARG_ENABLE(debug-freelist,
  50   [  --enable-debug-freelist    Include garbage collector freelist debugging code],
  51   if test "$enable_debug_freelist" = y || test "$enable_debug_freelist" = yes; then
  52     AC_DEFINE(GUILE_DEBUG_FREELIST)
  53   fi)
  54
  55 AC_ARG_ENABLE(debug-malloc,
  56   [  --enable-debug-malloc      Include malloc debugging code],
  57   if test "$enable_debug_malloc" = y || test "$enable_debug_malloc" = yes; then
  58     AC_DEFINE(GUILE_DEBUG_MALLOC)
  59   fi)
  60
  61 AC_ARG_ENABLE(arrays,
  62   [  --disable-arrays        omit array and uniform array support],,
  63   enable_arrays=yes)
  64
  65 AC_ARG_ENABLE(posix,
  66   [  --disable-posix         omit posix interfaces],,
  67   enable_posix=yes)
  68
  69 AC_ARG_ENABLE(networking,
  70   [  --disable-networking    omit networking interfaces],,
  71   enable_networking=yes)
  72
  73 AC_ARG_ENABLE(regex,
  74   [  --disable-regex         omit regular expression interfaces],,
  75   enable_regex=yes)
  76
  77 dnl The --disable-debug used to control these two.  But now they are
  78 dnl a required part of the distribution.
  79 AC_DEFINE(DEBUG_EXTENSIONS)
  80 AC_DEFINE(READER_EXTENSIONS)
  81
  82 dnl files which are destined for separate modules.
  83
  84 if test "$enable_arrays" = yes; then
  85    LIBOBJS="$LIBOBJS ramap.o unif.o"
  86    AC_DEFINE(HAVE_ARRAYS)
  87 fi
  88
  89 if test "$enable_posix" = yes; then
  90    LIBOBJS="$LIBOBJS filesys.o posix.o"
  91    AC_DEFINE(HAVE_POSIX)
  92 fi
  93
  94 if test "$enable_networking" = yes; then
  95    LIBOBJS="$LIBOBJS net_db.o socket.o"
  96    AC_DEFINE(HAVE_NETWORKING)
  97 fi
  98
  99 if test "$enable_debug_malloc" = yes; then
 100    LIBOBJS="$LIBOBJS debug-malloc.o"
 101 fi
 102
 103 #--------------------------------------------------------------------
 104
 105 AC_LIBLTDL_CONVENIENCE
 106 AC_CONFIG_SUBDIRS(libltdl)
 107
 108 AC_PROG_CC
 109 AC_PROG_CPP
 110 AC_LIBTOOL_DLOPEN
 111
 112 AC_AIX
 113 AC_ISC_POSIX
 114 AC_MINIX
 115
 116 AM_PROG_CC_STDC
 117 AM_PROG_LIBTOOL
 118
 119 AC_C_CONST
 120 AC_C_INLINE
 121 AC_CHECK_SIZEOF(int)
 122 AC_CHECK_SIZEOF(long)
 123 AC_CACHE_CHECK([for long longs], scm_cv_long_longs,
 124                AC_TRY_COMPILE(,
 125                               [long long a],
 126                               scm_cv_long_longs=yes,
 127                               scm_cv_long_longs=no))
 128 if test "$scm_cv_long_longs" = yes; then
 129   AC_DEFINE(HAVE_LONG_LONGS)
 130 fi
 131
 132 AC_HEADER_STDC
 133 AC_HEADER_DIRENT
 134 AC_HEADER_TIME
 135 AC_HEADER_SYS_WAIT
 136 AC_CHECK_HEADERS(io.h libc.h limits.h malloc.h memory.h string.h regex.h rxposix.h rx/rxposix.h sys/ioctl.h sys/select.h sys/time.h sys/timeb.h sys/times.h sys/types.h sys/utime.h time.h unistd.h utime.h)
 137 GUILE_HEADER_LIBC_WITH_UNISTD
 138
 139 AC_TYPE_GETGROUPS
 140 AC_TYPE_SIGNAL
 141 AC_TYPE_MODE_T
 142
 143 AC_CHECK_LIB(m, main)
 144 AC_CHECK_FUNCS(gethostbyname)
 145 if test $ac_cv_func_gethostbyname = no; then
 146     AC_CHECK_LIB(nsl, gethostbyname)
 147 fi
 148 AC_CHECK_FUNCS(connect)
 149 if test $ac_cv_func_connect = no; then
 150     AC_CHECK_LIB(socket, connect)
 151 fi
 152
 153 # Check for dynamic linking
 154
 155 use_modules=yes
 156 AC_ARG_WITH(modules,
 157 [  --with-modules[=FILES]  Add support for dynamic modules],
 158 use_modules="$withval")
 159 test -z "$use_modules" && use_modules=yes
 160 DLPREOPEN=
 161 if test "$use_modules" != no; then
 162   AC_DEFINE(DYNAMIC_LINKING)
 163   if test "$use_modules" = yes; then
 164     DLPREOPEN="-dlpreopen force"
 165   else
 166     DLPREOPEN="-export-dynamic"
 167     for module in $use_modules; do
 168       DLPREOPEN="$DLPREOPEN -dlopen $module"
 169     done
 170   fi
 171 fi
 172 AC_SUBST(INCLTDL)
 173 AC_SUBST(LIBLTDL)
 174 AC_SUBST(DLPREOPEN)
 175
 176 AC_CHECK_FUNCS(ctermid ftime fchown getcwd geteuid gettimeofday lstat mkdir mknod nice readlink rename rmdir select setegid seteuid setlocale setpgid setsid sigaction siginterrupt strftime strptime symlink sync tcgetpgrp tcsetpgrp times uname waitpid bzero strdup system usleep atexit on_exit)
 177
 178 ### Some systems don't declare some functions.  On such systems, we
 179 ### need to at least provide our own K&R-style declarations.
 180
 181 ### GUILE_FUNC_DECLARED(function, headerfile)
 182
 183 ### Check for a declaration of FUNCTION in HEADERFILE; if it is
 184 ### not there, #define MISSING_FUNCTION_DECL.
 185 AC_DEFUN(GUILE_FUNC_DECLARED, [
 186   AC_CACHE_CHECK(for $1 declaration, guile_cv_func_$1_declared,
 187     AC_EGREP_HEADER($1, $2,
 188                     guile_cv_func_$1_declared=yes,
 189                     guile_cv_func_$1_declared=no))
 190   if test [x$guile_cv_func_]$1[_declared] = xno; then
 191     AC_DEFINE([MISSING_]translit($1, [a-z], [A-Z])[_DECL])
 192   fi
 193 ])
 194
 195 GUILE_FUNC_DECLARED(strptime, time.h)
 196 GUILE_FUNC_DECLARED(bzero, string.h)
 197 GUILE_FUNC_DECLARED(sleep, unistd.h)
 198 GUILE_FUNC_DECLARED(usleep, unistd.h)
 199
 200 ### On some systems usleep has no return value.  If it does have one,
 201 ### we'd like to return it; otherwise, we'll fake it.
 202 AC_CACHE_CHECK([return type of usleep], guile_cv_func_usleep_return_type,
 203   [AC_EGREP_HEADER(changequote(<, >)<void[      ]+usleep>changequote([, ]),
 204                    /usr/include/unistd.h,
 205                    [guile_cv_func_usleep_return_type=void],
 206                    [guile_cv_func_usleep_return_type=int])])
 207 case "$guile_cv_func_usleep_return_type" in
 208   "void" )
 209     AC_DEFINE(USLEEP_RETURNS_VOID)
 210   ;;
 211 esac
 212
 213 dnl <GNU-WIN32 hacks>
 214
 215 AC_CHECK_HEADER(sys/un.h, have_sys_un_h=1)
 216 if test -n "$have_sys_un_h" ; then
 217 AC_DEFINE(HAVE_UNIX_DOMAIN_SOCKETS)
 218 fi
 219
 220 AC_CHECK_FUNCS(socketpair getgroups setpwent pause tzset)
 221
 222 dnl I don't know what this prefixing of cygwin32_ is for.
 223 dnl scmconfig.h wasn't updated with the test results.
 224 dnl so use AC_CHECK_FUNCS for now.
 225
 226 dnl how about:
 227 dnl save confdefs.h
 228 dnl if test $ac_cv_cigwin = yes; then
 229 dnl   modify confdefs.h
 230 dnl fi
 231 dnl AC_CHECK_FUNCS...
 232 dnl restore confdefs.h
 233
 234 dnl cp confdefs.h confdefs.h.bak
 235 dnl for func in gethostent sethostent endhostent getnetent setnetent endnetent getprotoent setprotoent endprotoent getservent setservent endservent getnetbyaddr getnetbyname inet_lnaof inet_makeaddr inet_netof hstrerror; do
 236 dnl cp confdefs.h.bak confdefs.h
 237 dnl cat >> confdefs.h << EOF
 238 dnl #ifdef __CYGWIN32__
 239 dnl #define $func cygwin32_$func
 240 dnl #endif
 241 dnl EOF
 242 dnl AC_CHECK_FUNC($func)
 243 dnl done
 244 dnl cp confdefs.h.bak confdefs.h
 245
 246 AC_CHECK_FUNCS(sethostent   gethostent   endhostent   dnl
 247                setnetent    getnetent    endnetent    dnl
 248                setprotoent  getprotoent  endprotoent  dnl
 249                setservent   getservent   endservent   dnl
 250                getnetbyaddr getnetbyname dnl
 251                inet_lnaof inet_makeaddr inet_netof hstrerror)
 252
 253 dnl </GNU-WIN32 hacks>
 254
 255 AC_MSG_CHECKING(whether localtime caches TZ)
 256 AC_CACHE_VAL(guile_cv_localtime_cache,
 257 [if test x$ac_cv_func_tzset = xyes; then
 258 AC_TRY_RUN([#include <time.h>
 259 #if STDC_HEADERS
 260 # include <stdlib.h>
 261 #endif
 262 extern char **environ;
 263 unset_TZ ()
 264 {
 265   char **from, **to;
 266   for (to = from = environ; (*to = *from); from++)
 267     if (! (to[0][0] == 'T' && to[0][1] == 'Z' && to[0][2] == '='))
 268       to++;
 269 }
 270 char TZ_GMT0[] = "TZ=GMT0";
 271 char TZ_PST8[] = "TZ=PST8";
 272 main()
 273 {
 274   time_t now = time ((time_t *) 0);
 275   int hour_GMT0, hour_unset;
 276   if (putenv (TZ_GMT0) != 0)
 277     exit (1);
 278   hour_GMT0 = localtime (&now)->tm_hour;
 279   unset_TZ ();
 280   hour_unset = localtime (&now)->tm_hour;
 281   if (putenv (TZ_PST8) != 0)
 282     exit (1);
 283   if (localtime (&now)->tm_hour == hour_GMT0)
 284     exit (1);
 285   unset_TZ ();
 286   if (localtime (&now)->tm_hour != hour_unset)
 287     exit (1);
 288   exit (0);
 289 }], guile_cv_localtime_cache=no, guile_cv_localtime_cache=yes,
 290 [# If we have tzset, assume the worst when cross-compiling.
 291 guile_cv_localtime_cache=yes])
 292 else
 293         # If we lack tzset, report that localtime does not cache TZ,
 294         # since we can't invalidate the cache if we don't have tzset.
 295         guile_cv_localtime_cache=no
 296 fi])dnl
 297 AC_MSG_RESULT($guile_cv_localtime_cache)
 298 if test $guile_cv_localtime_cache = yes; then
 299   AC_DEFINE(LOCALTIME_CACHE)
 300 fi
 301
 302 dnl Test whether system calls are restartable by default on the
 303 dnl current system.  If they are not, we put a loop around every system
 304 dnl call to check for EINTR (see SCM_SYSCALL) and do not attempt to
 305 dnl change from the default behaviour.  On the other hand, if signals
 306 dnl are restartable then the loop is not installed and when libguile
 307 dnl initialises it also resets the behaviour of each signal to cause a
 308 dnl restart (in case a different runtime had a different default
 309 dnl behaviour for some reason: e.g., different versions of linux seem
 310 dnl to behave differently.)
 311
 312 AC_SYS_RESTARTABLE_SYSCALLS
 313
 314 if test "$enable_regex" = yes; then
 315    if test "$ac_cv_header_regex_h" = yes ||
 316       test "$ac_cv_header_rxposix_h" = yes ||
 317       test "$ac_cv_header_rx_rxposix_h" = yes; then
 318      GUILE_NAMED_CHECK_FUNC(regcomp, norx, [LIBOBJS="regex-posix.o $LIBOBJS"],
 319      [AC_CHECK_LIB(rx, main)
 320       GUILE_NAMED_CHECK_FUNC(regcomp, rx, [LIBOBJS="regex-posix.o $LIBOBJS"])]
 321      )
 322      dnl The following should not be necessary, but for some reason
 323      dnl autoheader misses it if we don't include it!
 324      if test "$ac_cv_func_regcomp_norx" = yes ||
 325         test "$ac_cv_func_regcomp_rx" = yes; then
 326        AC_DEFINE(HAVE_REGCOMP)
 327      fi
 328    fi
 329 fi
 330
 331 AC_REPLACE_FUNCS(inet_aton putenv strerror memmove)
 332
 333 # When testing for the presence of alloca, we need to add alloca.o
 334 # explicitly to LIBOBJS to make sure that it is translated to
 335 # `alloca.lo' for libtool later on.  This can and should be done more cleanly.
 336 AC_FUNC_ALLOCA
 337 if test "$ALLOCA" = "alloca.o"; then LIBOBJS="alloca.o $LIBOBJS"; fi
 338
 339 AC_STRUCT_ST_RDEV
 340 AC_STRUCT_ST_BLKSIZE
 341
 342 # We could use AC_STRUCT_ST_BLOCKS here, but that adds fileblocks.o to
 343 # LIBOBJS, which we don't need.  This seems more direct.
 344 AC_CACHE_CHECK([for st_blocks in struct stat], ac_cv_struct_st_blocks,
 345 [AC_TRY_COMPILE([#include <sys/types.h>
 346 #include <sys/stat.h>], [struct stat s; s.st_blocks;],
 347 ac_cv_struct_st_blocks=yes, ac_cv_struct_st_blocks=no)])
 348 if test $ac_cv_struct_st_blocks = yes; then
 349   AC_DEFINE(HAVE_ST_BLOCKS)
 350 fi
 351
 352 AC_CACHE_CHECK([for S_ISLNK in sys/stat.h], ac_cv_macro_S_ISLNK,
 353   [AC_TRY_CPP([#include <sys/stat.h>
 354                #ifndef S_ISLNK
 355                #error no S_ISLNK
 356                #endif],
 357                ac_cv_macro_S_ISLNK=yes,
 358                ac_cv_macro_S_ISLNK=no)])
 359 if test $ac_cv_macro_S_ISLNK = yes; then
 360   AC_DEFINE(HAVE_S_ISLNK)
 361 fi
 362
 363 AC_STRUCT_TIMEZONE
 364 GUILE_STRUCT_UTIMBUF
 365
 366 #--------------------------------------------------------------------
 367 #
 368 # Which way does the stack grow?
 369 #
 370 #--------------------------------------------------------------------
 371
 372 AC_TRY_RUN(aux (l) unsigned long l;
 373              { int x; exit (l >= ((unsigned long)&x)); }
 374            main () { int q; aux((unsigned long)&q); },
 375            AC_DEFINE(SCM_STACK_GROWS_UP),,AC_MSG_WARN(Guessing that stack grows down -- see scmconfig.h.in))
 376
 377 AC_CACHE_CHECK([whether floats fit in longs], guile_cv_type_float_fits_long,
 378     [AC_TRY_RUN([main () { exit (sizeof(float) > sizeof(long)); }],
 379                 [guile_cv_type_float_fits_long=yes],
 380                 [guile_cv_type_float_fits_long=no],
 381                 [guile_cv_type_float_fits_long=guess-yes])])
 382 case $guile_cv_type_float_fits_long in
 383   "yes" )
 384     AC_DEFINE(SCM_SINGLES)
 385   ;;
 386   "guess-yes" )
 387     AC_DEFINE(SCM_SINGLES)
 388     AC_MSG_WARN([guessing that sizeof(long) == sizeof(float)])
 389     AC_MSG_WARN([see SCM_SINGLES in scmconfig.h.in])
 390   ;;
 391 esac
 392
 393
 394 AC_MSG_CHECKING(for struct linger)
 395 AC_CACHE_VAL(scm_cv_struct_linger,
 396         AC_TRY_COMPILE([
 397 #include <sys/types.h>
 398 #include <sys/socket.h>],
 399                         [struct linger lgr;  lgr.l_linger = 100],
 400                         scm_cv_struct_linger="yes",
 401                         scm_cv_struct_linger="no"))
 402 AC_MSG_RESULT($scm_cv_struct_linger)
 403 if test $scm_cv_struct_linger = yes; then
 404         AC_DEFINE(HAVE_STRUCT_LINGER)
 405 fi
 406
 407
 408 AC_MSG_CHECKING(for struct timespec)
 409 AC_CACHE_VAL(scm_cv_struct_timespec,
 410         AC_TRY_COMPILE([
 411 #include <time.h>],
 412                         [struct timespec t;  t.tv_nsec = 100],
 413                         scm_cv_struct_timespec="yes",
 414                         scm_cv_struct_timespec="no"))
 415 AC_MSG_RESULT($scm_cv_struct_timespec)
 416 if test $scm_cv_struct_timespec = yes; then
 417         AC_DEFINE(HAVE_STRUCT_TIMESPEC)
 418 fi
 419
 420 #--------------------------------------------------------------------
 421 #
 422 # Flags for thread support
 423 #
 424 #--------------------------------------------------------------------
 425
 426 ### What thread package has the user asked for?
 427 AC_ARG_WITH(threads, [  --with-threads          thread interface],
 428             , with_threads=no)
 429
 430 ### Turn $with_threads into either the name of a threads package, like
 431 ### `qt', or `no', meaning that threads should not be supported.
 432 AC_MSG_CHECKING(whether to support threads)
 433 case "$with_threads" in
 434   "yes" | "qt" | "coop" | "")
 435     with_threads=qt
 436   ;;
 437   "no" )
 438   ;;
 439   * )
 440     AC_MSG_ERROR(invalid value for --with-threads: $with_threads)
 441   ;;
 442 esac
 443 AC_MSG_RESULT($with_threads)
 444
 445 ## Make sure the threads package we've chosen is actually supported on
 446 ## the present platform.
 447 case "${with_threads}" in
 448   "qt" )
 449     ## This configures the QuickThreads package, and sets or clears
 450     ## the THREAD_PACKAGE variable if qthreads don't configure
 451     ## correctly.
 452     QTHREADS_CONFIGURE
 453    ;;
 454 esac
 455
 456 ## If we're using threads, bring in some other parts of Guile which
 457 ## work with them.
 458 if test "${THREAD_PACKAGE}" != "" ; then
 459   AC_DEFINE(USE_THREADS, 1)
 460
 461   ## Include the Guile thread interface in the library...
 462   LIBOBJS="$LIBOBJS threads.o"
 463
 464   ## ... and tell it which package to talk to.
 465   case "${THREAD_PACKAGE}" in
 466     "QT" )
 467       AC_DEFINE(USE_COOP_THREADS, 1)
 468     ;;
 469     * )
 470       AC_MSG_ERROR(invalid value for THREAD_PACKAGE: ${THREAD_PACKAGE})
 471     ;;
 472   esac
 473
 474   ## Bring in scm_internal_select, if appropriate.
 475   if test $ac_cv_func_gettimeofday = yes &&
 476      test $ac_cv_func_select = yes; then
 477     AC_DEFINE(GUILE_ISELECT, 1)
 478   fi
 479
 480   ## Workaround for linuxthreads (currently disabled)
 481   if test $host_os = linux-gnu; then
 482     AC_DEFINE(GUILE_PTHREAD_COMPAT, 1)
 483     AC_CHECK_LIB(pthread, main)
 484   fi
 485 fi
 486
 487 ## If we're using GCC, ask for aggressive warnings.
 488 case "$GCC" in
 489   yes )
 490     ## We had -Wstrict-prototypes in here for a bit, but Guile does too
 491     ## much stuff with generic function pointers for that to really be
 492     ## less than exasperating.
 493     ## -Wpointer-arith was here too, but something changed in gcc/glibc
 494     ## and it became equally exasperating (gcc 2.95 and/or glibc 2.1.2).
 495     CFLAGS="$CFLAGS -Wall -Wmissing-prototypes" ;;
 496 esac
 497
 498 AC_PROG_AWK
 499
 500 ## If we're creating a shared library (using libtool!), then we'll
 501 ## need to generate a list of .lo files corresponding to the .o files
 502 ## given in LIBOBJS.  We'll call it LIBLOBJS.
 503 LIBLOBJS="`echo ${LIBOBJS} | sed 's/\.o/.lo/g'`"
 504
 505 AC_SUBST(GUILE_MAJOR_VERSION)
 506 AC_SUBST(GUILE_MINOR_VERSION)
 507 AC_SUBST(GUILE_VERSION)
 508
 509 dnl Tell guile-config what flags guile users should link against.
 510 GUILE_LIBS="$LDFLAGS $THREAD_LIBS_INSTALLED $LIBS"
 511 AC_SUBST(GUILE_LIBS)
 512
 513 AC_SUBST(AWK)
 514 AC_SUBST(LIBLOBJS)
 515
 516 AC_OUTPUT([Makefile libguile/Makefile libguile/guile-snarf libguile/guile-doc-snarf libguile/guile-func-name-check libguile/guile-snarf.awk libguile/versiondat.h ice-9/Makefile qt/Makefile qt/qt.h qt/md/Makefile qt/time/Makefile guile-config/Makefile doc/Makefile], [chmod +x libguile/guile-snarf libguile/guile-doc-snarf libguile/guile-func-name-check])
 517
 518 dnl Local Variables:
 519 dnl comment-start: "dnl "
 520 dnl comment-end: ""
 521 dnl comment-start-skip: "\\bdnl\\b\\s *"
 522 dnl End: