1 dnl configuration script for Guile
2 dnl Process this file with autoconf to produce configure.
4 dnl Copyright (C) 1998, 1999 Free Software Foundation, Inc.
6 dnl This file is part of GUILE
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.
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.
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.
24 . $srcdir/GUILE-VERSION
25 AM_INIT_AUTOMAKE($PACKAGE, $VERSION, no-define)
27 AM_CONFIG_HEADER(libguile/scmconfig.h)
29 #--------------------------------------------------------------------
31 # Independent Subdirectories
33 #--------------------------------------------------------------------
35 AC_CONFIG_SUBDIRS(guile-readline)
37 #--------------------------------------------------------------------
41 #--------------------------------------------------------------------
43 AC_ARG_ENABLE(dynamic-linking,
44 [ --enable-dynamic-linking Include support for dynamic linking],,
45 enable_dynamic_linking=yes)
47 AC_ARG_ENABLE(guile-debug,
48 [ --enable-guile-debug Include internal debugging functions],
49 if test "$enable_guile_debug" = y || test "$enable_guile_debug" = yes; then
50 AC_DEFINE(GUILE_DEBUG)
53 dnl The --disable-debug used to control these two. But now they are
54 dnl a required part of the distribution.
55 AC_DEFINE(DEBUG_EXTENSIONS)
56 AC_DEFINE(READER_EXTENSIONS)
58 #--------------------------------------------------------------------
74 AC_CACHE_CHECK([for long longs], scm_cv_long_longs,
77 scm_cv_long_longs=yes,
78 scm_cv_long_longs=no))
79 if test "$scm_cv_long_longs" = yes; then
80 AC_DEFINE(HAVE_LONG_LONGS)
87 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)
88 GUILE_HEADER_LIBC_WITH_UNISTD
95 AC_CHECK_FUNCS(gethostbyname)
96 if test $ac_cv_func_gethostbyname = no; then
97 AC_CHECK_LIB(nsl, gethostbyname)
99 AC_CHECK_FUNCS(connect)
100 if test $ac_cv_func_connect = no; then
101 AC_CHECK_LIB(socket, connect)
104 # Checks for dynamic linking
106 if test "$enable_dynamic_linking" = "yes"; then
108 AC_CHECK_LIB(dl,dlopen)
109 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
110 AC_CHECK_FUNCS(dlopen)
111 AC_DEFINE(DYNAMIC_LINKING)
113 AC_CHECK_LIB(dld,dld_link)
114 if test "$ac_cv_lib_dld_dld_link" = "yes"; then
115 AC_DEFINE(DYNAMIC_LINKING)
117 AC_CHECK_FUNCS(shl_load)
118 if test "$ac_cv_func_shl_load" = "yes"; then
119 AC_DEFINE(DYNAMIC_LINKING)
121 AC_CHECK_FUNCS(dlopen)
122 if test "$ac_cv_func_dlopen" = "yes"; then
123 AC_DEFINE(DYNAMIC_LINKING)
133 AC_CHECK_FUNCS(ctermid ftime getcwd geteuid gettimeofday lstat mkdir mknod nice readlink rename rmdir select setegid seteuid setlocale setpgid setsid sigaction strftime strptime symlink sync tcgetpgrp tcsetpgrp times uname waitpid bzero strdup system usleep memmove bcopy)
135 ### Some systems don't declare some functions. On such systems, we
136 ### need to at least provide our own K&R-style declarations.
138 ### GUILE_FUNC_DECLARED(function, headerfile)
140 ### Check for a declaration of FUNCTION in HEADERFILE; if it is
141 ### not there, #define MISSING_FUNCTION_DECL.
142 AC_DEFUN(GUILE_FUNC_DECLARED, [
143 AC_CACHE_CHECK(for $1 declaration, guile_cv_func_$1_declared,
144 AC_EGREP_HEADER($1, $2,
145 guile_cv_func_$1_declared=yes,
146 guile_cv_func_$1_declared=no))
147 if test [x$guile_cv_func_]$1[_declared] = xno; then
148 AC_DEFINE([MISSING_]translit($1, [a-z], [A-Z])[_DECL])
152 GUILE_FUNC_DECLARED(strptime, time.h)
153 GUILE_FUNC_DECLARED(bzero, string.h)
154 GUILE_FUNC_DECLARED(sleep, unistd.h)
155 GUILE_FUNC_DECLARED(usleep, unistd.h)
157 ### On some systems usleep has no return value. If it does have one,
158 ### we'd like to return it; otherwise, we'll fake it.
159 AC_CACHE_CHECK([return type of usleep], guile_cv_func_usleep_return_type,
160 [AC_EGREP_HEADER(changequote(<, >)<void[ ]+usleep>changequote([, ]),
161 /usr/include/unistd.h,
162 [guile_cv_func_usleep_return_type=void],
163 [guile_cv_func_usleep_return_type=int])])
164 case "$guile_cv_func_usleep_return_type" in
166 AC_DEFINE(USLEEP_RETURNS_VOID)
170 dnl <GNU-WIN32 hacks>
172 AC_CHECK_HEADER(sys/un.h, have_sys_un_h=1)
173 if test -n "$have_sys_un_h" ; then
174 AC_DEFINE(HAVE_UNIX_DOMAIN_SOCKETS)
177 AC_CHECK_FUNCS(socketpair getgroups setpwent pause tzset)
179 dnl I don't know what this prefixing of cygwin32_ is for.
180 dnl scmconfig.h wasn't updated with the test results.
181 dnl so use AC_CHECK_FUNCS for now.
185 dnl if test $ac_cv_cigwin = yes; then
186 dnl modify confdefs.h
188 dnl AC_CHECK_FUNCS...
189 dnl restore confdefs.h
191 dnl cp confdefs.h confdefs.h.bak
192 dnl for func in gethostent sethostent endhostent getnetent setnetent endnetent getprotoent setprotoent endprotoent getservent setservent endservent getnetbyaddr getnetbyname inet_lnaof inet_makeaddr inet_netof ; do
193 dnl cp confdefs.h.bak confdefs.h
194 dnl cat >> confdefs.h << EOF
195 dnl #ifdef __CYGWIN32__
196 dnl #define $func cygwin32_$func
199 dnl AC_CHECK_FUNC($func)
201 dnl cp confdefs.h.bak confdefs.h
203 AC_CHECK_FUNCS(sethostent gethostent endhostent dnl
204 setnetent getnetent endnetent dnl
205 setprotoent getprotoent endprotoent dnl
206 setservent getservent endservent dnl
207 getnetbyaddr getnetbyname inet_lnaof inet_makeaddr inet_netof)
209 dnl </GNU-WIN32 hacks>
211 AC_CACHE_CHECK([for restartable system calls], scm_cv_restarts,
212 if test $ac_cv_func_sigaction = yes; then
213 [AC_TRY_COMPILE([#include <signal.h>],
214 [int a = SA_RESTART],
220 if test $scm_cv_restarts = yes; then
221 AC_DEFINE(HAVE_RESTARTS)
224 if test "$ac_cv_header_regex_h" = yes ||
225 test "$ac_cv_header_rxposix_h" = yes ||
226 test "$ac_cv_header_rx_rxposix_h" = yes; then
227 GUILE_NAMED_CHECK_FUNC(regcomp, norx, [LIBOBJS="regex-posix.o $LIBOBJS"],
228 [AC_CHECK_LIB(rx, main)
229 GUILE_NAMED_CHECK_FUNC(regcomp, rx, [LIBOBJS="regex-posix.o $LIBOBJS"])]
231 dnl The following should not be necessary, but for some reason
232 dnl autoheader misses it if we don't include it!
233 if test "$ac_cv_func_regcomp_norx" = yes ||
234 test "$ac_cv_func_regcomp_rx" = yes; then
235 AC_DEFINE(HAVE_REGCOMP)
239 AC_REPLACE_FUNCS(inet_aton putenv strerror)
241 # When testing for the presence of alloca, we need to add alloca.o
242 # explicitly to LIBOBJS to make sure that it is translated to
243 # `alloca.lo' for libtool later on. This can and should be done more cleanly.
245 if test "$ALLOCA" = "alloca.o"; then LIBOBJS="alloca.o $LIBOBJS"; fi
250 # We could use AC_STRUCT_ST_BLOCKS here, but that adds fileblocks.o to
251 # LIBOBJS, which we don't need. This seems more direct.
252 AC_CACHE_CHECK([for st_blocks in struct stat], ac_cv_struct_st_blocks,
253 [AC_TRY_COMPILE([#include <sys/types.h>
254 #include <sys/stat.h>], [struct stat s; s.st_blocks;],
255 ac_cv_struct_st_blocks=yes, ac_cv_struct_st_blocks=no)])
256 if test $ac_cv_struct_st_blocks = yes; then
257 AC_DEFINE(HAVE_ST_BLOCKS)
260 AC_CACHE_CHECK([for S_ISLNK in sys/stat.h], ac_cv_macro_S_ISLNK,
261 [AC_TRY_CPP([#include <sys/stat.h>
265 ac_cv_macro_S_ISLNK=yes,
266 ac_cv_macro_S_ISLNK=no)])
267 if test $ac_cv_macro_S_ISLNK = yes; then
268 AC_DEFINE(HAVE_S_ISLNK)
274 #--------------------------------------------------------------------
276 # Which way does the stack grow?
278 #--------------------------------------------------------------------
280 AC_TRY_RUN(aux (l) unsigned long l;
281 { int x; exit (l >= ((unsigned long)&x)); }
282 main () { int q; aux((unsigned long)&q); },
283 AC_DEFINE(SCM_STACK_GROWS_UP),,AC_MSG_WARN(Guessing that stack grows down -- see scmconfig.h.in))
285 AC_CACHE_CHECK([whether floats fit in longs], guile_cv_type_float_fits_long,
286 [AC_TRY_RUN([main () { exit (sizeof(float) > sizeof(long)); }],
287 [guile_cv_type_float_fits_long=yes],
288 [guile_cv_type_float_fits_long=no],
289 [guile_cv_type_float_fits_long=guess-yes])])
290 case $guile_cv_type_float_fits_long in
292 AC_DEFINE(SCM_SINGLES)
295 AC_DEFINE(SCM_SINGLES)
296 AC_MSG_WARN([guessing that sizeof(long) == sizeof(float)])
297 AC_MSG_WARN([see SCM_SINGLES in scmconfig.h.in])
302 AC_MSG_CHECKING(for struct linger)
303 AC_CACHE_VAL(scm_cv_struct_linger,
305 #include <sys/types.h>
306 #include <sys/socket.h>],
307 [struct linger lgr; lgr.l_linger = 100],
308 scm_cv_struct_linger="yes",
309 scm_cv_struct_linger="no"))
310 AC_MSG_RESULT($scm_cv_struct_linger)
311 if test $scm_cv_struct_linger = yes; then
312 AC_DEFINE(HAVE_STRUCT_LINGER)
315 #--------------------------------------------------------------------
317 # How can you violate a stdio abstraction by setting a stream's fd?
319 #--------------------------------------------------------------------
321 dnl AC_MSG_CHECKING(how to set a stream file descriptor)
322 dnl AC_CACHE_VAL(scm_cv_fd_setter,
323 dnl AC_TRY_COMPILE([#include <stdio.h>],
324 dnl [stdout->_file = 1],
325 dnl scm_cv_fd_setter="_file",
326 dnl AC_TRY_COMPILE([#include <stdio.h>],
327 dnl [stdout->__file = 1],
328 dnl scm_cv_fd_setter="__file",
329 dnl AC_TRY_COMPILE([#include <stdio.h>],
330 dnl [stdout->_fileno = 1],
331 dnl scm_cv_fd_setter="_fileno",
332 dnl scm_cv_fd_setter=""))))
334 dnl if test "$scm_cv_fd_setter"; then
335 dnl AC_MSG_RESULT($scm_cv_fd_setter)
336 dnl AC_DEFINE_UNQUOTED(FD_SETTER, $scm_cv_fd_setter)
338 dnl AC_MSG_RESULT(we couldn't do it!)
341 #--------------------------------------------------------------------
342 # How to find out whether a FILE structure contains buffered data.
343 # From Tk we have the following list:
344 # _cnt: Most UNIX systems
345 # __cnt: HPUX and SCO
348 # Or, in GNU libc there are two fields, _gptr and _egptr, which
349 # have to be compared.
350 # These can also be known as _IO_read_ptr and _IO_read_end.
351 #--------------------------------------------------------------------
353 dnl AC_MSG_CHECKING(how to get buffer char count from FILE structure)
354 dnl AC_CACHE_VAL(scm_cv_struct_file_count,
355 dnl AC_TRY_COMPILE([#include <stdio.h>],
356 dnl [FILE *f = stdin; f->_cnt = 0],
357 dnl scm_cv_struct_file_count="_cnt",
358 dnl AC_TRY_COMPILE([#include <stdio.h>],
359 dnl [FILE *f = stdin; f->__cnt = 0],
360 dnl scm_cv_struct_file_count="__cnt",
361 dnl AC_TRY_COMPILE([#include <stdio.h>],
362 dnl [FILE *f = stdin; f->_r = 0],
363 dnl scm_cv_struct_file_count="_r",
364 dnl AC_TRY_COMPILE([#include <stdio.h>],
365 dnl [FILE *f = stdin; f->readCount = 0],
366 dnl scm_cv_struct_file_count="readCount",
367 dnl scm_cv_struct_file_count="")))))
368 dnl if test "$scm_cv_struct_file_count"; then
369 dnl AC_MSG_RESULT($scm_cv_struct_file_count)
370 dnl AC_DEFINE_UNQUOTED(FILE_CNT_FIELD, $scm_cv_struct_file_count)
372 dnl AC_CACHE_VAL(scm_cv_struct_file_gptr,
373 dnl AC_TRY_COMPILE([#include <stdio.h>],
374 dnl [FILE *f = stdin; f->_gptr = f->egptr;],
375 dnl scm_cv_struct_file_gptr=1,
376 dnl scm_cv_struct_file_gptr=""))
377 dnl if test "$scm_cv_struct_gptr"; then
378 dnl AC_MSG_RESULT(gptr)
379 dnl AC_DEFINE_UNQUOTED(FILE_CNT_GPTR, $scm_cv_struct_file_gptr)
381 dnl AC_CACHE_VAL(scm_cv_struct_file_readptr,
382 dnl AC_TRY_COMPILE([#include <stdio.h>],
383 dnl [FILE *f = stdin; f->_IO_read_ptr = f->_IO_read_end;],
384 dnl scm_cv_struct_file_readptr=1))
385 dnl if test "$scm_cv_struct_file_readptr"; then
386 dnl AC_MSG_RESULT(read_ptr)
387 dnl AC_DEFINE_UNQUOTED(FILE_CNT_READPTR, $scm_cv_struct_file_readptr)
389 dnl AC_MSG_RESULT(we couldn't do it!)
394 #--------------------------------------------------------------------
396 # Flags for thread support
398 #--------------------------------------------------------------------
400 ### What thread package has the user asked for?
401 AC_ARG_WITH(threads, [ --with-threads thread interface],
404 ### Turn $with_threads into either the name of a threads package, like
405 ### `qt', or `no', meaning that threads should not be supported.
406 AC_MSG_CHECKING(whether to support threads)
407 case "$with_threads" in
408 "yes" | "qt" | "coop" | "")
414 AC_MSG_ERROR(invalid value for --with-threads: $with_threads)
417 AC_MSG_RESULT($with_threads)
419 ## Make sure the threads package we've chosen is actually supported on
420 ## the present platform.
421 case "${with_threads}" in
423 ## This configures the QuickThreads package, and sets or clears
424 ## the THREAD_PACKAGE variable if qthreads don't configure
430 ## If we're using threads, bring in some other parts of Guile which
432 if test "${THREAD_PACKAGE}" != "" ; then
433 AC_DEFINE(USE_THREADS, 1)
435 ## Include the Guile thread interface in the library...
436 LIBOBJS="$LIBOBJS threads.o"
438 ## ... and tell it which package to talk to.
439 case "${THREAD_PACKAGE}" in
441 AC_DEFINE(USE_COOP_THREADS, 1)
444 AC_MSG_ERROR(invalid value for THREAD_PACKAGE: ${THREAD_PACKAGE})
448 ## Bring in scm_internal_select, if appropriate.
449 if test $ac_cv_func_gettimeofday = yes &&
450 test $ac_cv_func_select = yes; then
451 LIBOBJS="$LIBOBJS iselect.o"
452 AC_DEFINE(GUILE_ISELECT, 1)
457 ## If we're using GCC, ask for aggressive warnings.
460 ## We had -Wstrict-prototypes in here for a bit, but Guile does too
461 ## much stuff with generic function pointers for that to really be
462 ## less than exasperating.
463 CFLAGS="$CFLAGS -Wall -Wpointer-arith -Wmissing-prototypes" ;;
468 ## If we're creating a shared library (using libtool!), then we'll
469 ## need to generate a list of .lo files corresponding to the .o files
470 ## given in LIBOBJS. We'll call it LIBLOBJS.
471 LIBLOBJS="`echo ${LIBOBJS} | sed 's/\.o/.lo/g'`"
473 AC_SUBST(GUILE_MAJOR_VERSION)
474 AC_SUBST(GUILE_MINOR_VERSION)
475 AC_SUBST(GUILE_VERSION)
477 dnl Tell guile-config what flags guile users should link against.
478 GUILE_LIBS="$LDFLAGS $THREAD_LIBS_INSTALLED $LIBS"
481 dnl timestamping the interpreter and scheme libraries:
483 dnl Help us notice when we're running one version of the Guile
484 dnl interpreter against a different version of the ice-9 Scheme code.
485 dnl This will definitely detect version skew due to differing
486 dnl snapshots and releases, but may not catch skew for the developers.
487 dnl Hopefully it will not detect skew when there is none; if that
488 dnl happens, the warnings will be useless, and we should remove this.
490 AC_SUBST(GUILE_STAMP)
495 AC_OUTPUT([Makefile libguile/Makefile libguile/guile-snarf libguile/versiondat.h ice-9/Makefile ice-9/version.scm qt/Makefile qt/qt.h qt/md/Makefile qt/time/Makefile guile-config/Makefile doc/Makefile], [chmod +x libguile/guile-snarf])
498 dnl comment-start: "dnl "
500 dnl comment-start-skip: "\\bdnl\\b\\s *"