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 $ac_cv_func_connect = no; then
93 AC_CHECK_LIB(socket, connect)
96 dnl Should we check for curses, terminfo, and termlib, too?
97 for termlib in ncurses termcap ; do
98 AC_CHECK_LIB(${termlib}, tgoto,
99 [LIBS="-l${termlib} $LIBS"; break])
101 AC_CHECK_LIB(readline, main)
102 AC_CHECK_FUNCS(rl_clear_signals rl_cleanup_after_signal)
104 AC_CACHE_CHECK([for rl_getc_function pointer in readline],
105 ac_cv_var_rl_getc_function,
108 #include <readline/readline.h>],
110 [ac_cv_var_rl_getc_function=yes],
111 [ac_cv_var_rl_getc_function=no])])
112 if test "$ac_cv_var_rl_getc_function" = "yes"; then
113 AC_DEFINE(HAVE_RL_GETC_FUNCTION)
116 if test "$ac_cv_lib_readline_main" = yes -a "$ac_cv_var_rl_getc_function" = no; then
117 echo 'Warning: libreadline is too old on your system. Need >= 2.1.'
120 # Checks for dynamic linking
122 if test "$enable_dynamic_linking" = "yes"; then
124 AC_CHECK_LIB(dl,dlopen)
125 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
126 AC_CHECK_FUNCS(dlopen)
127 AC_DEFINE(DYNAMIC_LINKING)
129 AC_CHECK_LIB(dld,dld_link)
130 if test "$ac_cv_lib_dld_dld_link" = "yes"; then
131 AC_DEFINE(DYNAMIC_LINKING)
133 AC_CHECK_FUNCS(shl_load)
134 if test "$ac_cv_func_shl_load" = "yes"; then
135 AC_DEFINE(DYNAMIC_LINKING)
137 AC_CHECK_FUNCS(dlopen)
138 if test "$ac_cv_func_dlopen" = "yes"; then
139 AC_DEFINE(DYNAMIC_LINKING)
149 AC_CHECK_FUNCS(ctermid ftime getcwd geteuid gethostent 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)
151 ### Some systems don't declare some functions. On such systems, we
152 ### need to at least provide our own K&R-style declarations.
154 ### GUILE_FUNC_DECLARED(function, headerfile)
156 ### Check for a declaration of FUNCTION in HEADERFILE; if it is
157 ### not there, #define MISSING_FUNCTION_DECL.
158 AC_DEFUN(GUILE_FUNC_DECLARED, [
159 AC_CACHE_CHECK(for $1 declaration, guile_cv_func_$1_declared,
160 AC_EGREP_HEADER($1, $2,
161 guile_cv_func_$1_declared=yes,
162 guile_cv_func_$1_declared=no))
163 if test [x$guile_cv_func_]$1[_declared] = xno; then
164 AC_DEFINE([MISSING_]translit($1, [a-z], [A-Z])[_DECL])
168 GUILE_FUNC_DECLARED(strptime, time.h)
169 GUILE_FUNC_DECLARED(bzero, string.h)
170 GUILE_FUNC_DECLARED(sleep, unistd.h)
171 GUILE_FUNC_DECLARED(usleep, unistd.h)
173 ### On some systems usleep has no return value. If it does have one,
174 ### we'd like to return it; otherwise, we'll fake it.
175 AC_CACHE_CHECK([return type of usleep], guile_cv_func_usleep_return_type,
176 [AC_EGREP_HEADER(changequote(<, >)<void[ ]+usleep>changequote([, ]),
177 /usr/include/unistd.h,
178 [guile_cv_func_usleep_return_type=void],
179 [guile_cv_func_usleep_return_type=int])])
180 case "$guile_cv_func_usleep_return_type" in
182 AC_DEFINE(USLEEP_RETURNS_VOID)
186 dnl <GNU-WIN32 hacks>
188 AC_CHECK_HEADER(sys/un.h, have_sys_un_h=1)
189 if test -n "$have_sys_un_h" ; then
190 AC_DEFINE(HAVE_UNIX_DOMAIN_SOCKETS)
193 AC_CHECK_FUNCS(socketpair getgroups setpwent pause tzset)
195 dnl I don't know what this prefixing of cygwin32_ is for.
196 dnl scmconfig.h wasn't updated with the test results.
197 dnl so use AC_CHECK_FUNCS for now.
201 dnl if test $ac_cv_cigwin = yes; then
202 dnl modify confdefs.h
204 dnl AC_CHECK_FUNCS...
205 dnl restore confdefs.h
207 dnl cp confdefs.h confdefs.h.bak
208 dnl for func in sethostent endhostent getnetent setnetent endnetent getprotoent endprotoent getservent endservent getnetbyaddr getnetbyname inet_lnaof inet_makeaddr inet_netof ; do
209 dnl cp confdefs.h.bak confdefs.h
210 dnl cat >> confdefs.h << EOF
211 dnl #ifdef __CYGWIN32__
212 dnl #define $func cygwin32_$func
215 dnl AC_CHECK_FUNC($func)
217 dnl cp confdefs.h.bak confdefs.h
219 AC_CHECK_FUNCS(sethostent endhostent getnetent setnetent endnetent getprotoent endprotoent getservent endservent getnetbyaddr getnetbyname inet_lnaof inet_makeaddr inet_netof)
221 dnl </GNU-WIN32 hacks>
223 AC_CACHE_CHECK([for restartable system calls], scm_cv_restarts,
224 if test $ac_cv_func_sigaction = yes; then
225 [AC_TRY_COMPILE([#include <signal.h>],
226 [int a = SA_RESTART],
232 if test $scm_cv_restarts = yes; then
233 AC_DEFINE(HAVE_RESTARTS)
236 if test "$ac_cv_header_regex_h" = yes ||
237 test "$ac_cv_header_rxposix_h" = yes ||
238 test "$ac_cv_header_rx_rxposix_h" = yes; then
239 GUILE_NAMED_CHECK_FUNC(regcomp, norx, [LIBOBJS="regex-posix.o $LIBOBJS"],
240 [AC_CHECK_LIB(rx, main)
241 GUILE_NAMED_CHECK_FUNC(regcomp, rx, [LIBOBJS="regex-posix.o $LIBOBJS"])]
243 dnl The following should not be necessary, but for some reason
244 dnl autoheader misses it if we don't include it!
245 if test "$ac_cv_func_regcomp_norx" = yes ||
246 test "$ac_cv_func_regcomp_rx" = yes; then
247 AC_DEFINE(HAVE_REGCOMP)
251 AC_REPLACE_FUNCS(inet_aton putenv strerror)
253 # When testing for the presence of alloca, we need to add alloca.o
254 # explicitly to LIBOBJS to make sure that it is translated to
255 # `alloca.lo' for libtool later on. This can and should be done more cleanly.
257 if test "$ALLOCA" = "alloca.o"; then LIBOBJS="alloca.o $LIBOBJS"; fi
262 # We could use AC_STRUCT_ST_BLOCKS here, but that adds fileblocks.o to
263 # LIBOBJS, which we don't need. This seems more direct.
264 AC_CACHE_CHECK([for st_blocks in struct stat], ac_cv_struct_st_blocks,
265 [AC_TRY_COMPILE([#include <sys/types.h>
266 #include <sys/stat.h>], [struct stat s; s.st_blocks;],
267 ac_cv_struct_st_blocks=yes, ac_cv_struct_st_blocks=no)])
268 if test $ac_cv_struct_st_blocks = yes; then
269 AC_DEFINE(HAVE_ST_BLOCKS)
275 #--------------------------------------------------------------------
277 # Which way does the stack grow?
279 #--------------------------------------------------------------------
281 AC_TRY_RUN(aux (l) unsigned long l;
282 { int x; exit (l >= ((unsigned long)&x)); }
283 main () { int q; aux((unsigned long)&q); },
284 AC_DEFINE(SCM_STACK_GROWS_UP),,AC_MSG_WARN(Guessing that stack grows down -- see scmconfig.h.in))
286 AC_CACHE_CHECK([whether floats fit in longs], guile_cv_type_float_fits_long,
287 [AC_TRY_RUN([main () { exit (sizeof(float) > sizeof(long)); }],
288 [guile_cv_type_float_fits_long=yes],
289 [guile_cv_type_float_fits_long=no],
290 [guile_cv_type_float_fits_long=guess-yes])])
291 case $guile_cv_type_float_fits_long in
293 AC_DEFINE(SCM_SINGLES)
296 AC_DEFINE(SCM_SINGLES)
297 AC_MSG_WARN([guessing that sizeof(long) == sizeof(float)])
298 AC_MSG_WARN([see SCM_SINGLES in scmconfig.h.in])
303 AC_MSG_CHECKING(for struct linger)
304 AC_CACHE_VAL(scm_cv_struct_linger,
306 #include <sys/types.h>
307 #include <sys/socket.h>],
308 [struct linger lgr; lgr.l_linger = 100],
309 scm_cv_struct_linger="yes",
310 scm_cv_struct_linger="no"))
311 AC_MSG_RESULT($scm_cv_struct_linger)
312 if test $scm_cv_struct_linger = yes; then
313 AC_DEFINE(HAVE_STRUCT_LINGER)
316 #--------------------------------------------------------------------
318 # How can you violate a stdio abstraction by setting a stream's fd?
320 #--------------------------------------------------------------------
322 AC_MSG_CHECKING(how to set a stream file descriptor)
323 AC_CACHE_VAL(scm_cv_fd_setter,
324 AC_TRY_COMPILE([#include <stdio.h>],
326 scm_cv_fd_setter="_file",
327 AC_TRY_COMPILE([#include <stdio.h>],
328 [stdout->__file = 1],
329 scm_cv_fd_setter="__file",
330 AC_TRY_COMPILE([#include <stdio.h>],
331 [stdout->_fileno = 1],
332 scm_cv_fd_setter="_fileno",
333 scm_cv_fd_setter=""))))
335 if test "$scm_cv_fd_setter"; then
336 AC_MSG_RESULT($scm_cv_fd_setter)
337 AC_DEFINE_UNQUOTED(FD_SETTER, $scm_cv_fd_setter)
339 AC_MSG_RESULT(we couldn't do it!)
342 #--------------------------------------------------------------------
343 # How to find out whether a FILE structure contains buffered data.
344 # From Tk we have the following list:
345 # _cnt: Most UNIX systems
346 # __cnt: HPUX and SCO
349 # Or, in GNU libc there are two fields, _gptr and _egptr, which
350 # have to be compared.
351 # These can also be known as _IO_read_ptr and _IO_read_end.
352 #--------------------------------------------------------------------
354 AC_MSG_CHECKING(how to get buffer char count from FILE structure)
355 AC_CACHE_VAL(scm_cv_struct_file_count,
356 AC_TRY_COMPILE([#include <stdio.h>],
357 [FILE *f = stdin; f->_cnt = 0],
358 scm_cv_struct_file_count="_cnt",
359 AC_TRY_COMPILE([#include <stdio.h>],
360 [FILE *f = stdin; f->__cnt = 0],
361 scm_cv_struct_file_count="__cnt",
362 AC_TRY_COMPILE([#include <stdio.h>],
363 [FILE *f = stdin; f->_r = 0],
364 scm_cv_struct_file_count="_r",
365 AC_TRY_COMPILE([#include <stdio.h>],
366 [FILE *f = stdin; f->readCount = 0],
367 scm_cv_struct_file_count="readCount",
368 scm_cv_struct_file_count="")))))
369 if test "$scm_cv_struct_file_count"; then
370 AC_MSG_RESULT($scm_cv_struct_file_count)
371 AC_DEFINE_UNQUOTED(FILE_CNT_FIELD, $scm_cv_struct_file_count)
373 AC_CACHE_VAL(scm_cv_struct_file_gptr,
374 AC_TRY_COMPILE([#include <stdio.h>],
375 [FILE *f = stdin; f->_gptr = f->egptr;],
376 scm_cv_struct_file_gptr=1,
377 scm_cv_struct_file_gptr=""))
378 if test "$scm_cv_struct_gptr"; then
380 AC_DEFINE_UNQUOTED(FILE_CNT_GPTR, $scm_cv_struct_file_gptr)
382 AC_CACHE_VAL(scm_cv_struct_file_readptr,
383 AC_TRY_COMPILE([#include <stdio.h>],
384 [FILE *f = stdin; f->_IO_read_ptr = f->_IO_read_end;],
385 scm_cv_struct_file_readptr=1))
386 if test "$scm_cv_struct_file_readptr"; then
387 AC_MSG_RESULT(read_ptr)
388 AC_DEFINE_UNQUOTED(FILE_CNT_READPTR, $scm_cv_struct_file_readptr)
390 AC_MSG_RESULT(we couldn't do it!)
395 #--------------------------------------------------------------------
397 # Flags for thread support
399 #--------------------------------------------------------------------
401 ### What thread package has the user asked for?
402 AC_ARG_WITH(threads, [ --with-threads thread interface],
405 ### Turn $with_threads into either the name of a threads package, like
406 ### `qt', or `no', meaning that threads should not be supported.
407 AC_MSG_CHECKING(whether to support threads)
408 case "$with_threads" in
409 "yes" | "qt" | "coop" | "")
415 AC_MSG_ERROR(invalid value for --with-threads: $with_threads)
418 AC_MSG_RESULT($with_threads)
420 ## Make sure the threads package we've chosen is actually supported on
421 ## the present platform.
422 case "${with_threads}" in
424 ## This configures the QuickThreads package, and sets or clears
425 ## the THREAD_PACKAGE variable if qthreads don't configure
431 ## If we're using threads, bring in some other parts of Guile which
433 if test "${THREAD_PACKAGE}" != "" ; then
434 AC_DEFINE(USE_THREADS, 1)
436 ## Include the Guile thread interface in the library...
437 LIBOBJS="$LIBOBJS threads.o"
439 ## ... and tell it which package to talk to.
440 case "${THREAD_PACKAGE}" in
442 AC_DEFINE(USE_COOP_THREADS, 1)
445 AC_MSG_ERROR(invalid value for THREAD_PACKAGE: ${THREAD_PACKAGE})
449 ## Bring in scm_internal_select, if appropriate.
450 if test $ac_cv_func_gettimeofday = yes &&
451 test $ac_cv_func_select = yes; then
452 LIBOBJS="$LIBOBJS iselect.o"
453 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 *"