1 dnl configuration script for Guile
2 dnl Process this file with autoconf to produce configure.
4 . $srcdir/GUILE-VERSION
5 AM_INIT_AUTOMAKE($PACKAGE, $VERSION, no-define)
7 AM_CONFIG_HEADER(libguile/scmconfig.h)
9 #--------------------------------------------------------------------
13 #--------------------------------------------------------------------
15 AC_ARG_ENABLE(dynamic-linking,
16 [ --enable-dynamic-linking Include support for dynamic linking],,
17 enable_dynamic_linking=yes)
19 AC_ARG_ENABLE(guile-debug,
20 [ --enable-guile-debug Include internal debugging functions])
21 if test "$enableval" = y || test "$enableval" = yes; then
22 AC_DEFINE(GUILE_DEBUG)
25 dnl The --disable-debug used to control these two. But now they are
26 dnl a required part of the distribution.
27 AC_DEFINE(DEBUG_EXTENSIONS)
28 AC_DEFINE(READER_EXTENSIONS)
30 #--------------------------------------------------------------------
46 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)
47 GUILE_HEADER_LIBC_WITH_UNISTD
54 AC_CHECK_FUNCS(gethostbyname)
55 if test $ac_cv_func_gethostbyname = no; then
56 AC_CHECK_LIB(nsl, gethostbyname)
58 AC_CHECK_FUNCS(connect)
59 if test $ac_cv_func_connect = no; then
60 AC_CHECK_LIB(socket, connect)
62 AC_CHECK_LIB(termcap, tgoto)
63 AC_CHECK_LIB(readline, readline)
64 AC_CHECK_FUNCS(rl_getc_function rl_clear_signals rl_cleanup_after_signal)
65 if test $ac_cv_lib_readline_readline = yes -a $ac_cv_func_rl_getc_function = no; then
66 echo 'Warning: libreadline is too old on your system. Need >= 2.1.'
69 # Checks for dynamic linking
71 if test "$enable_dynamic_linking" = "yes"; then
73 AC_CHECK_LIB(dl,dlopen)
74 if test "$ac_cv_lib_dl_dlopen" = "yes"; then
75 AC_CHECK_FUNCS(dlopen)
76 AC_DEFINE(DYNAMIC_LINKING)
78 AC_CHECK_LIB(dld,dld_link)
79 if test "$ac_cv_lib_dld_dld_link" = "yes"; then
80 AC_DEFINE(DYNAMIC_LINKING)
82 AC_CHECK_FUNCS(shl_load)
83 if test "$ac_cv_func_shl_load" = "yes"; then
84 AC_DEFINE(DYNAMIC_LINKING)
86 AC_CHECK_FUNCS(dlopen)
87 if test "$ac_cv_func_dlopen" = "yes"; then
88 AC_DEFINE(DYNAMIC_LINKING)
98 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)
100 ### Some systems don't declare some functions. On such systems, we
101 ### need to at least provide our own K&R-style declarations.
103 ### GUILE_FUNC_DECLARED(function, headerfile)
105 ### Check for a declaration of FUNCTION in HEADERFILE; if it is
106 ### not there, #define MISSING_FUNCTION_DECL.
107 AC_DEFUN(GUILE_FUNC_DECLARED, [
108 AC_CACHE_CHECK(for $1 declaration, ac_cv_func_$1_declared,
109 AC_EGREP_HEADER($1, $2,
110 ac_cv_func_$1_declared=yes,
111 ac_cv_func_$1_declared=no))
112 if test [x$ac_cv_func_]$1[_declared] = xno; then
113 AC_DEFINE([MISSING_]translit($1, [a-z], [A-Z])[_DECL])
117 GUILE_FUNC_DECLARED(strptime, time.h)
118 GUILE_FUNC_DECLARED(bzero, string.h)
119 GUILE_FUNC_DECLARED(sleep, unistd.h)
120 GUILE_FUNC_DECLARED(usleep, unistd.h)
122 # On some systems usleep has no return value
123 AC_EGREP_HEADER(changequote(<, >)<void[ ][ ]*usleep>changequote([, ]),
124 /usr/include/unistd.h,
125 AC_DEFINE(USLEEP_RETURNS_VOID)
129 dnl <GNU-WIN32 hacks>
131 AC_CHECK_HEADER(sys/un.h, have_sys_un_h=1)
132 if test -n "$have_sys_un_h" ; then
133 AC_DEFINE(HAVE_UNIX_DOMAIN_SOCKETS)
136 AC_CHECK_FUNCS(socketpair getgroups setpwent pause tzset)
138 dnl I don't know what this prefixing of cygwin32_ is for.
139 dnl scmconfig.h wasn't updated with the test results.
140 dnl so use AC_CHECK_FUNCS for now.
144 dnl if test $ac_cv_cigwin = yes; then
145 dnl modify confdefs.h
147 dnl AC_CHECK_FUNCS...
148 dnl restore confdefs.h
150 dnl cp confdefs.h confdefs.h.bak
151 dnl for func in sethostent endhostent getnetent setnetent endnetent getprotoent endprotoent getservent endservent getnetbyaddr getnetbyname inet_lnaof inet_makeaddr inet_netof ; do
152 dnl cp confdefs.h.bak confdefs.h
153 dnl cat >> confdefs.h << EOF
154 dnl #ifdef __CYGWIN32__
155 dnl #define $func cygwin32_$func
158 dnl AC_CHECK_FUNC($func)
160 dnl cp confdefs.h.bak confdefs.h
162 AC_CHECK_FUNCS(sethostent endhostent getnetent setnetent endnetent getprotoent endprotoent getservent endservent getnetbyaddr getnetbyname inet_lnaof inet_makeaddr inet_netof)
164 dnl </GNU-WIN32 hacks>
166 AC_CACHE_CHECK([for restartable system calls], scm_cv_restarts,
167 if test $ac_cv_func_sigaction = yes; then
168 [AC_TRY_COMPILE([#include <signal.h>],
169 [int a = SA_RESTART],
175 if test $scm_cv_restarts = yes; then
176 AC_DEFINE(HAVE_RESTARTS)
179 if test "$ac_cv_header_regex_h" = yes ||
180 test "$ac_cv_header_rxposix_h" = yes ||
181 test "$ac_cv_header_rx_rxposix_h" = yes; then
182 GUILE_NAMED_CHECK_FUNC(regcomp, norx, [LIBOBJS="regex-posix.o $LIBOBJS"],
183 [AC_CHECK_LIB(rx, main)
184 GUILE_NAMED_CHECK_FUNC(regcomp, rx, [LIBOBJS="regex-posix.o $LIBOBJS"])]
186 dnl The following should not be necessary, but for some reason
187 dnl autoheader misses it if we don't include it!
188 if test "$ac_cv_func_regcomp_norx" = yes ||
189 test "$ac_cv_func_regcomp_rx" = yes; then
190 AC_DEFINE(HAVE_REGCOMP)
194 AC_REPLACE_FUNCS(inet_aton putenv strerror)
196 # When testing for the presence of alloca, we need to add alloca.o
197 # explicitly to LIBOBJS to make sure that it is translated to
198 # `alloca.lo' for libtool later on. This can and should be done more cleanly.
200 if test "$ALLOCA" = "alloca.o"; then LIBOBJS="alloca.o $LIBOBJS"; fi
205 # We could use AC_STRUCT_ST_BLOCKS here, but that adds fileblocks.o to
206 # LIBOBJS, which we don't need. This seems more direct.
207 AC_CACHE_CHECK([for st_blocks in struct stat], ac_cv_struct_st_blocks,
208 [AC_TRY_COMPILE([#include <sys/types.h>
209 #include <sys/stat.h>], [struct stat s; s.st_blocks;],
210 ac_cv_struct_st_blocks=yes, ac_cv_struct_st_blocks=no)])
211 if test $ac_cv_struct_st_blocks = yes; then
212 AC_DEFINE(HAVE_ST_BLOCKS)
218 #--------------------------------------------------------------------
220 # Which way does the stack grow?
222 #--------------------------------------------------------------------
224 AC_TRY_RUN(aux (l) unsigned long l;
225 { int x; exit (l >= ((unsigned long)&x)); }
226 main () { int q; aux((unsigned long)&q); },
227 AC_DEFINE(SCM_STACK_GROWS_UP),,AC_MSG_WARN(Guessing that stack grows down -- see scmconfig.h.in))
230 AC_TRY_RUN(main () { exit (sizeof(float) != sizeof(long)); },
231 AC_DEFINE(SCM_SINGLES),,AC_DEFINE(SCM_SINGLES)
232 AC_MSG_WARN(Guessing that sizeof(long) == sizeof(float) -- see scmconfig.h.in))
234 AC_MSG_CHECKING(for struct linger)
235 AC_CACHE_VAL(scm_cv_struct_linger,
237 #include <sys/types.h>
238 #include <sys/socket.h>],
239 [struct linger lgr; lgr.l_linger = 100],
240 scm_cv_struct_linger="yes",
241 scm_cv_struct_linger="no"))
242 AC_MSG_RESULT($scm_cv_struct_linger)
243 if test $scm_cv_struct_linger = yes; then
244 AC_DEFINE(HAVE_STRUCT_LINGER)
247 #--------------------------------------------------------------------
249 # How can you violate a stdio abstraction by setting a stream's fd?
251 #--------------------------------------------------------------------
253 AC_MSG_CHECKING(how to set a stream file descriptor)
254 AC_CACHE_VAL(scm_cv_fd_setter,
255 AC_TRY_COMPILE([#include <stdio.h>],
257 scm_cv_fd_setter="_file",
258 AC_TRY_COMPILE([#include <stdio.h>],
259 [stdout->_fileno = 1],
260 scm_cv_fd_setter="_fileno",
261 scm_cv_fd_setter="")))
263 if test "$scm_cv_fd_setter"; then
264 AC_MSG_RESULT($scm_cv_fd_setter)
265 AC_DEFINE_UNQUOTED(FD_SETTER, $scm_cv_fd_setter)
267 AC_MSG_RESULT(we couldn't do it!)
270 #--------------------------------------------------------------------
271 # How to find out whether a FILE structure contains buffered data.
272 # From Tk we have the following list:
273 # _cnt: Most UNIX systems
277 # Or, in GNU libc there are two fields, _gptr and _egptr, which
278 # have to be compared.
279 # These can also be known as _IO_read_ptr and _IO_read_end.
280 #--------------------------------------------------------------------
282 AC_MSG_CHECKING(how to get buffer char count from FILE structure)
283 AC_CACHE_VAL(scm_cv_struct_file_count,
284 AC_TRY_COMPILE([#include <stdio.h>],
285 [FILE *f = stdin; f->_cnt = 0],
286 scm_cv_struct_file_count="_cnt",
287 AC_TRY_COMPILE([#include <stdio.h>],
288 [FILE *f = stdin; f->_r = 0],
289 scm_cv_struct_file_count="_r",
290 AC_TRY_COMPILE([#include <stdio.h>],
291 [FILE *f = stdin; f->readCount = 0],
292 scm_cv_struct_file_count="readCount",
293 scm_cv_struct_file_count=""))))
294 if test "$scm_cv_struct_file_count"; then
295 AC_MSG_RESULT($scm_cv_struct_file_count)
296 AC_DEFINE_UNQUOTED(FILE_CNT_FIELD, $scm_cv_struct_file_count)
298 AC_CACHE_VAL(scm_cv_struct_file_gptr,
299 AC_TRY_COMPILE([#include <stdio.h>],
300 [FILE *f = stdin; f->_gptr = f->egptr;],
301 scm_cv_struct_file_gptr=1,
302 scm_cv_struct_file_gptr=""))
303 if test "$scm_cv_struct_gptr"; then
305 AC_DEFINE_UNQUOTED(FILE_CNT_GPTR, $scm_cv_struct_file_gptr)
307 AC_CACHE_VAL(scm_cv_struct_file_readptr,
308 AC_TRY_COMPILE([#include <stdio.h>],
309 [FILE *f = stdin; f->_IO_read_ptr = f->_IO_read_end;],
310 scm_cv_struct_file_readptr=1))
311 if test "$scm_cv_struct_file_readptr"; then
312 AC_MSG_RESULT(read_ptr)
313 AC_DEFINE_UNQUOTED(FILE_CNT_READPTR, $scm_cv_struct_file_readptr)
315 AC_MSG_RESULT(we couldn't do it!)
320 #--------------------------------------------------------------------
322 # Flags for thread support
324 #--------------------------------------------------------------------
326 ### What thread package has the user asked for?
327 AC_ARG_WITH(threads, [ --with-threads thread interface],
330 ### Turn $with_threads into either the name of a threads package, like
331 ### `qt', or `no', meaning that threads should not be supported.
332 AC_MSG_CHECKING(whether to support threads)
333 case "$with_threads" in
334 "yes" | "qt" | "coop" | "")
340 AC_MSG_ERROR(invalid value for --with-threads: $with_threads)
343 AC_MSG_RESULT($with_threads)
345 ## Make sure the threads package we've chosen is actually supported on
346 ## the present platform.
347 case "${with_threads}" in
349 ## This configures the QuickThreads package, and sets or clears
350 ## the THREAD_PACKAGE variable if qthreads don't configure
356 ## If we're using threads, bring in some other parts of Guile which
358 if test "${THREAD_PACKAGE}" != "" ; then
359 AC_DEFINE(USE_THREADS, 1)
361 ## Include the Guile thread interface in the library...
362 LIBOBJS="$LIBOBJS threads.o"
364 ## ... and tell it which package to talk to.
365 case "${THREAD_PACKAGE}" in
367 AC_DEFINE(USE_COOP_THREADS, 1)
370 AC_MSG_ERROR(invalid value for THREAD_PACKAGE: ${THREAD_PACKAGE})
374 ## Bring in scm_internal_select, if appropriate.
375 if test $ac_cv_func_gettimeofday = yes &&
376 test $ac_cv_func_select = yes; then
377 LIBOBJS="$LIBOBJS iselect.o"
378 AC_DEFINE(GUILE_ISELECT, 1)
382 ## If we're using GCC, ask for aggressive warnings.
385 ## We had -Wstrict-prototypes in here for a bit, but Guile does too
386 ## much stuff with generic function pointers for that to really be
387 ## less than exasperating.
388 CFLAGS="$CFLAGS -Wall -Wpointer-arith -Wmissing-prototypes" ;;
393 ## If we're creating a shared library (using libtool!), then we'll
394 ## need to generate a list of .lo files corresponding to the .o files
395 ## given in LIBOBJS. We'll call it LIBLOBJS.
396 LIBLOBJS="`echo ${LIBOBJS} | sed 's/\.o/.lo/g'`"
398 AC_SUBST(GUILE_MAJOR_VERSION)
399 AC_SUBST(GUILE_MINOR_VERSION)
400 AC_SUBST(GUILE_VERSION)
402 dnl Tell build-guile what flags guile users should link against.
403 GUILE_LIBS="$LDFLAGS $THREAD_LIBS_INSTALLED $LIBS"
406 dnl timestamping the interpreter and scheme libraries:
408 dnl Help us notice when we're running one version of the Guile
409 dnl interpreter against a different version of the ice-9 Scheme code.
410 dnl This will definitely detect version skew due to differing
411 dnl snapshots and releases, but may not catch skew for the developers.
412 dnl Hopefully it will not detect skew when there is none; if that
413 dnl happens, the warnings will be useless, and we should remove this.
415 AC_SUBST(GUILE_STAMP)
420 AC_OUTPUT([Makefile libguile/Makefile libguile/guile-snarf ice-9/Makefile ice-9/version.scm qt/Makefile qt/qt.h qt/md/Makefile qt/time/Makefile build/Makefile], [chmod +x libguile/guile-snarf])
423 dnl comment-start: "dnl "
425 dnl comment-start-skip: "\\bdnl\\b\\s *"