1 dnl configuration script for Guile
2 dnl Process this file with autoconf to produce configure.
4 dnl Copyright (C) 1998 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, $VERSION, no-define)
27 AM_CONFIG_HEADER(libguile/scmconfig.h)
29 #--------------------------------------------------------------------
33 #--------------------------------------------------------------------
35 AC_ARG_ENABLE(dynamic-linking,
36 [ --enable-dynamic-linking Include support for dynamic linking],,
37 enable_dynamic_linking=yes)
39 AC_ARG_ENABLE(guile-debug,
40 [ --enable-guile-debug Include internal debugging functions])
41 if test "$enableval" = y || test "$enableval" = yes; then
42 AC_DEFINE(GUILE_DEBUG)
45 dnl The --disable-debug used to control these two. But now they are
46 dnl a required part of the distribution.
47 AC_DEFINE(DEBUG_EXTENSIONS)
48 AC_DEFINE(READER_EXTENSIONS)
50 #--------------------------------------------------------------------
66 AC_CACHE_CHECK([for long longs], scm_cv_long_longs,
69 scm_cv_long_longs=yes,
70 scm_cv_long_longs=no))
71 if test "$scm_cv_long_longs" = yes; then
72 AC_DEFINE(HAVE_LONG_LONGS)
79 AC_CHECK_HEADERS(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)
80 GUILE_HEADER_LIBC_WITH_UNISTD
87 AC_CHECK_FUNCS(gethostbyname)
88 if test $ac_cv_func_gethostbyname = no; then
89 AC_CHECK_LIB(nsl, gethostbyname)
91 AC_CHECK_FUNCS(connect)
92 if test $ac_cv_func_connect = no; then
93 AC_CHECK_LIB(socket, connect)
96 # Checks for dynamic linking
98 if test "$enable_dynamic_linking" = "yes"; then
100 AC_CHECK_LIB(dl,dlopen)
101 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
102 AC_CHECK_FUNCS(dlopen)
103 AC_DEFINE(DYNAMIC_LINKING)
105 AC_CHECK_LIB(dld,dld_link)
106 if test "$ac_cv_lib_dld_dld_link" = "yes"; then
107 AC_DEFINE(DYNAMIC_LINKING)
109 AC_CHECK_FUNCS(shl_load)
110 if test "$ac_cv_func_shl_load" = "yes"; then
111 AC_DEFINE(DYNAMIC_LINKING)
113 AC_CHECK_FUNCS(dlopen)
114 if test "$ac_cv_func_dlopen" = "yes"; then
115 AC_DEFINE(DYNAMIC_LINKING)
125 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)
127 ### Some systems don't declare some functions. On such systems, we
128 ### need to at least provide our own K&R-style declarations.
130 ### GUILE_FUNC_DECLARED(function, headerfile)
132 ### Check for a declaration of FUNCTION in HEADERFILE; if it is
133 ### not there, #define MISSING_FUNCTION_DECL.
134 AC_DEFUN(GUILE_FUNC_DECLARED, [
135 AC_CACHE_CHECK(for $1 declaration, guile_cv_func_$1_declared,
136 AC_EGREP_HEADER($1, $2,
137 guile_cv_func_$1_declared=yes,
138 guile_cv_func_$1_declared=no))
139 if test [x$guile_cv_func_]$1[_declared] = xno; then
140 AC_DEFINE([MISSING_]translit($1, [a-z], [A-Z])[_DECL])
144 GUILE_FUNC_DECLARED(strptime, time.h)
145 GUILE_FUNC_DECLARED(bzero, string.h)
146 GUILE_FUNC_DECLARED(sleep, unistd.h)
147 GUILE_FUNC_DECLARED(usleep, unistd.h)
149 ### On some systems usleep has no return value. If it does have one,
150 ### we'd like to return it; otherwise, we'll fake it.
151 AC_CACHE_CHECK([return type of usleep], guile_cv_func_usleep_return_type,
152 [AC_EGREP_HEADER(changequote(<, >)<void[ ]+usleep>changequote([, ]),
153 /usr/include/unistd.h,
154 [guile_cv_func_usleep_return_type=void],
155 [guile_cv_func_usleep_return_type=int])])
156 case "$guile_cv_func_usleep_return_type" in
158 AC_DEFINE(USLEEP_RETURNS_VOID)
162 dnl <GNU-WIN32 hacks>
164 AC_CHECK_HEADER(sys/un.h, have_sys_un_h=1)
165 if test -n "$have_sys_un_h" ; then
166 AC_DEFINE(HAVE_UNIX_DOMAIN_SOCKETS)
169 AC_CHECK_FUNCS(socketpair getgroups setpwent pause tzset)
171 dnl I don't know what this prefixing of cygwin32_ is for.
172 dnl scmconfig.h wasn't updated with the test results.
173 dnl so use AC_CHECK_FUNCS for now.
177 dnl if test $ac_cv_cigwin = yes; then
178 dnl modify confdefs.h
180 dnl AC_CHECK_FUNCS...
181 dnl restore confdefs.h
183 dnl cp confdefs.h confdefs.h.bak
184 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
185 dnl cp confdefs.h.bak confdefs.h
186 dnl cat >> confdefs.h << EOF
187 dnl #ifdef __CYGWIN32__
188 dnl #define $func cygwin32_$func
191 dnl AC_CHECK_FUNC($func)
193 dnl cp confdefs.h.bak confdefs.h
195 AC_CHECK_FUNCS(sethostent gethostent endhostent dnl
196 setnetent getnetent endnetent dnl
197 setprotoent getprotoent endprotoent dnl
198 setservent getservent endservent dnl
199 getnetbyaddr getnetbyname inet_lnaof inet_makeaddr inet_netof)
201 dnl </GNU-WIN32 hacks>
203 AC_CACHE_CHECK([for restartable system calls], scm_cv_restarts,
204 if test $ac_cv_func_sigaction = yes; then
205 [AC_TRY_COMPILE([#include <signal.h>],
206 [int a = SA_RESTART],
212 if test $scm_cv_restarts = yes; then
213 AC_DEFINE(HAVE_RESTARTS)
216 if test "$ac_cv_header_regex_h" = yes ||
217 test "$ac_cv_header_rxposix_h" = yes ||
218 test "$ac_cv_header_rx_rxposix_h" = yes; then
219 GUILE_NAMED_CHECK_FUNC(regcomp, norx, [LIBOBJS="regex-posix.o $LIBOBJS"],
220 [AC_CHECK_LIB(rx, main)
221 GUILE_NAMED_CHECK_FUNC(regcomp, rx, [LIBOBJS="regex-posix.o $LIBOBJS"])]
223 dnl The following should not be necessary, but for some reason
224 dnl autoheader misses it if we don't include it!
225 if test "$ac_cv_func_regcomp_norx" = yes ||
226 test "$ac_cv_func_regcomp_rx" = yes; then
227 AC_DEFINE(HAVE_REGCOMP)
231 AC_REPLACE_FUNCS(inet_aton putenv strerror)
233 # When testing for the presence of alloca, we need to add alloca.o
234 # explicitly to LIBOBJS to make sure that it is translated to
235 # `alloca.lo' for libtool later on. This can and should be done more cleanly.
237 if test "$ALLOCA" = "alloca.o"; then LIBOBJS="alloca.o $LIBOBJS"; fi
242 # We could use AC_STRUCT_ST_BLOCKS here, but that adds fileblocks.o to
243 # LIBOBJS, which we don't need. This seems more direct.
244 AC_CACHE_CHECK([for st_blocks in struct stat], ac_cv_struct_st_blocks,
245 [AC_TRY_COMPILE([#include <sys/types.h>
246 #include <sys/stat.h>], [struct stat s; s.st_blocks;],
247 ac_cv_struct_st_blocks=yes, ac_cv_struct_st_blocks=no)])
248 if test $ac_cv_struct_st_blocks = yes; then
249 AC_DEFINE(HAVE_ST_BLOCKS)
255 #--------------------------------------------------------------------
257 # Which way does the stack grow?
259 #--------------------------------------------------------------------
261 AC_TRY_RUN(aux (l) unsigned long l;
262 { int x; exit (l >= ((unsigned long)&x)); }
263 main () { int q; aux((unsigned long)&q); },
264 AC_DEFINE(SCM_STACK_GROWS_UP),,AC_MSG_WARN(Guessing that stack grows down -- see scmconfig.h.in))
266 AC_CACHE_CHECK([whether floats fit in longs], guile_cv_type_float_fits_long,
267 [AC_TRY_RUN([main () { exit (sizeof(float) > sizeof(long)); }],
268 [guile_cv_type_float_fits_long=yes],
269 [guile_cv_type_float_fits_long=no],
270 [guile_cv_type_float_fits_long=guess-yes])])
271 case $guile_cv_type_float_fits_long in
273 AC_DEFINE(SCM_SINGLES)
276 AC_DEFINE(SCM_SINGLES)
277 AC_MSG_WARN([guessing that sizeof(long) == sizeof(float)])
278 AC_MSG_WARN([see SCM_SINGLES in scmconfig.h.in])
283 AC_MSG_CHECKING(for struct linger)
284 AC_CACHE_VAL(scm_cv_struct_linger,
286 #include <sys/types.h>
287 #include <sys/socket.h>],
288 [struct linger lgr; lgr.l_linger = 100],
289 scm_cv_struct_linger="yes",
290 scm_cv_struct_linger="no"))
291 AC_MSG_RESULT($scm_cv_struct_linger)
292 if test $scm_cv_struct_linger = yes; then
293 AC_DEFINE(HAVE_STRUCT_LINGER)
296 #--------------------------------------------------------------------
298 # How can you violate a stdio abstraction by setting a stream's fd?
300 #--------------------------------------------------------------------
302 dnl AC_MSG_CHECKING(how to set a stream file descriptor)
303 dnl AC_CACHE_VAL(scm_cv_fd_setter,
304 dnl AC_TRY_COMPILE([#include <stdio.h>],
305 dnl [stdout->_file = 1],
306 dnl scm_cv_fd_setter="_file",
307 dnl AC_TRY_COMPILE([#include <stdio.h>],
308 dnl [stdout->__file = 1],
309 dnl scm_cv_fd_setter="__file",
310 dnl AC_TRY_COMPILE([#include <stdio.h>],
311 dnl [stdout->_fileno = 1],
312 dnl scm_cv_fd_setter="_fileno",
313 dnl scm_cv_fd_setter=""))))
315 dnl if test "$scm_cv_fd_setter"; then
316 dnl AC_MSG_RESULT($scm_cv_fd_setter)
317 dnl AC_DEFINE_UNQUOTED(FD_SETTER, $scm_cv_fd_setter)
319 dnl AC_MSG_RESULT(we couldn't do it!)
322 #--------------------------------------------------------------------
323 # How to find out whether a FILE structure contains buffered data.
324 # From Tk we have the following list:
325 # _cnt: Most UNIX systems
326 # __cnt: HPUX and SCO
329 # Or, in GNU libc there are two fields, _gptr and _egptr, which
330 # have to be compared.
331 # These can also be known as _IO_read_ptr and _IO_read_end.
332 #--------------------------------------------------------------------
334 dnl AC_MSG_CHECKING(how to get buffer char count from FILE structure)
335 dnl AC_CACHE_VAL(scm_cv_struct_file_count,
336 dnl AC_TRY_COMPILE([#include <stdio.h>],
337 dnl [FILE *f = stdin; f->_cnt = 0],
338 dnl scm_cv_struct_file_count="_cnt",
339 dnl AC_TRY_COMPILE([#include <stdio.h>],
340 dnl [FILE *f = stdin; f->__cnt = 0],
341 dnl scm_cv_struct_file_count="__cnt",
342 dnl AC_TRY_COMPILE([#include <stdio.h>],
343 dnl [FILE *f = stdin; f->_r = 0],
344 dnl scm_cv_struct_file_count="_r",
345 dnl AC_TRY_COMPILE([#include <stdio.h>],
346 dnl [FILE *f = stdin; f->readCount = 0],
347 dnl scm_cv_struct_file_count="readCount",
348 dnl scm_cv_struct_file_count="")))))
349 dnl if test "$scm_cv_struct_file_count"; then
350 dnl AC_MSG_RESULT($scm_cv_struct_file_count)
351 dnl AC_DEFINE_UNQUOTED(FILE_CNT_FIELD, $scm_cv_struct_file_count)
353 dnl AC_CACHE_VAL(scm_cv_struct_file_gptr,
354 dnl AC_TRY_COMPILE([#include <stdio.h>],
355 dnl [FILE *f = stdin; f->_gptr = f->egptr;],
356 dnl scm_cv_struct_file_gptr=1,
357 dnl scm_cv_struct_file_gptr=""))
358 dnl if test "$scm_cv_struct_gptr"; then
359 dnl AC_MSG_RESULT(gptr)
360 dnl AC_DEFINE_UNQUOTED(FILE_CNT_GPTR, $scm_cv_struct_file_gptr)
362 dnl AC_CACHE_VAL(scm_cv_struct_file_readptr,
363 dnl AC_TRY_COMPILE([#include <stdio.h>],
364 dnl [FILE *f = stdin; f->_IO_read_ptr = f->_IO_read_end;],
365 dnl scm_cv_struct_file_readptr=1))
366 dnl if test "$scm_cv_struct_file_readptr"; then
367 dnl AC_MSG_RESULT(read_ptr)
368 dnl AC_DEFINE_UNQUOTED(FILE_CNT_READPTR, $scm_cv_struct_file_readptr)
370 dnl AC_MSG_RESULT(we couldn't do it!)
375 #--------------------------------------------------------------------
377 # Flags for thread support
379 #--------------------------------------------------------------------
381 ### What thread package has the user asked for?
382 AC_ARG_WITH(threads, [ --with-threads thread interface],
385 ### Turn $with_threads into either the name of a threads package, like
386 ### `qt', or `no', meaning that threads should not be supported.
387 AC_MSG_CHECKING(whether to support threads)
388 case "$with_threads" in
389 "yes" | "qt" | "coop" | "")
395 AC_MSG_ERROR(invalid value for --with-threads: $with_threads)
398 AC_MSG_RESULT($with_threads)
400 ## Make sure the threads package we've chosen is actually supported on
401 ## the present platform.
402 case "${with_threads}" in
404 ## This configures the QuickThreads package, and sets or clears
405 ## the THREAD_PACKAGE variable if qthreads don't configure
411 ## If we're using threads, bring in some other parts of Guile which
413 if test "${THREAD_PACKAGE}" != "" ; then
414 AC_DEFINE(USE_THREADS, 1)
416 ## Include the Guile thread interface in the library...
417 LIBOBJS="$LIBOBJS threads.o"
419 ## ... and tell it which package to talk to.
420 case "${THREAD_PACKAGE}" in
422 AC_DEFINE(USE_COOP_THREADS, 1)
425 AC_MSG_ERROR(invalid value for THREAD_PACKAGE: ${THREAD_PACKAGE})
429 ## Bring in scm_internal_select, if appropriate.
430 if test $ac_cv_func_gettimeofday = yes &&
431 test $ac_cv_func_select = yes; then
432 LIBOBJS="$LIBOBJS iselect.o"
433 AC_DEFINE(GUILE_ISELECT, 1)
437 ## If we're using GCC, ask for aggressive warnings.
440 ## We had -Wstrict-prototypes in here for a bit, but Guile does too
441 ## much stuff with generic function pointers for that to really be
442 ## less than exasperating.
443 CFLAGS="$CFLAGS -Wall -Wpointer-arith -Wmissing-prototypes" ;;
448 ## If we're creating a shared library (using libtool!), then we'll
449 ## need to generate a list of .lo files corresponding to the .o files
450 ## given in LIBOBJS. We'll call it LIBLOBJS.
451 LIBLOBJS="`echo ${LIBOBJS} | sed 's/\.o/.lo/g'`"
453 AC_SUBST(GUILE_MAJOR_VERSION)
454 AC_SUBST(GUILE_MINOR_VERSION)
455 AC_SUBST(GUILE_VERSION)
457 dnl Tell guile-config what flags guile users should link against.
458 GUILE_LIBS="$LDFLAGS $THREAD_LIBS_INSTALLED $LIBS"
461 dnl timestamping the interpreter and scheme libraries:
463 dnl Help us notice when we're running one version of the Guile
464 dnl interpreter against a different version of the ice-9 Scheme code.
465 dnl This will definitely detect version skew due to differing
466 dnl snapshots and releases, but may not catch skew for the developers.
467 dnl Hopefully it will not detect skew when there is none; if that
468 dnl happens, the warnings will be useless, and we should remove this.
470 AC_SUBST(GUILE_STAMP)
475 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])
478 dnl comment-start: "dnl "
480 dnl comment-start-skip: "\\bdnl\\b\\s *"