Commit | Line | Data |
---|---|---|
b585a9fa EZ |
1 | dnl Process this file with autoconf to produce a configure script. |
2 | ||
3 | AC_INIT(rlfe.c) | |
4 | AC_CONFIG_HEADER(config.h) | |
5 | VERSION=0.4 | |
6 | AC_SUBST(VERSION) | |
7 | ||
8 | dnl | |
9 | dnl Define some useful macros | |
10 | dnl | |
5bb4d8de | 11 | AC_DEFUN([AC_PROGRAM_SOURCE], |
b585a9fa EZ |
12 | [AC_REQUIRE([AC_PROG_CPP])AC_PROVIDE([$0])cat > conftest.c <<EOF |
13 | #include "confdefs.h" | |
14 | [$1] | |
15 | _CUT_HERE_ | |
16 | [$2] | |
17 | EOF | |
18 | eval "$ac_cpp conftest.c 2>&5 | sed -e '1,/_CUT_HERE_/d' -e 's/ //g' > conftest.out" | |
19 | . ./conftest.out | |
20 | rm -f conftest* | |
21 | ])dnl | |
22 | dnl | |
23 | define(AC_NOTE, | |
24 | [echo "$1" 1>&AC_FD_MSG | |
25 | ])dnl | |
26 | ||
27 | old_CFLAGS="$CFLAGS" | |
28 | AC_PROG_CC | |
29 | AC_PROG_CPP | |
30 | AC_PROG_GCC_TRADITIONAL | |
31 | AC_ISC_POSIX | |
32 | ||
33 | AC_TRY_RUN(main(){exit(0);},,[ | |
34 | if test $CC != cc ; then | |
35 | AC_NOTE(Your $CC failed - restarting with CC=cc) | |
36 | AC_NOTE() | |
37 | CC=cc | |
38 | export CC | |
39 | exec $0 $configure_args | |
40 | fi | |
41 | ]) | |
42 | ||
43 | AC_TRY_RUN(main(){exit(0);},, | |
44 | exec 5>&2 | |
45 | eval $ac_link | |
46 | AC_NOTE(CC=$CC; CFLAGS=$CFLAGS; LIBS=$LIBS;) | |
47 | AC_NOTE($ac_compile) | |
48 | AC_MSG_ERROR(Can't run the compiler - sorry)) | |
49 | ||
50 | AC_TRY_RUN([ | |
51 | main() | |
52 | { | |
53 | int __something_strange_(); | |
54 | __something_strange_(0); | |
55 | } | |
56 | ],AC_MSG_ERROR(Your compiler does not set the exit status - sorry)) | |
57 | ||
58 | AC_PROG_AWK | |
59 | ||
60 | if test -f etc/toolcheck; then | |
61 | AC_CHECKING(for buggy tools) | |
62 | sh etc/toolcheck 1>&AC_FD_MSG | |
63 | fi | |
64 | ||
65 | dnl | |
66 | dnl **** special unix variants **** | |
67 | dnl | |
68 | ||
69 | AC_CHECKING(for System V) | |
70 | AC_TRY_COMPILE( | |
71 | [#include <sys/types.h> | |
72 | #include <signal.h> | |
73 | #include <fcntl.h>], [int x = SIGCHLD | FNDELAY;], , AC_DEFINE(SYSV)) | |
74 | ||
75 | AC_CHECKING(for Solaris 2.x) | |
76 | AC_EGREP_CPP(yes, | |
77 | [#if defined(SVR4) && defined(sun) | |
78 | yes | |
79 | #endif | |
80 | ], LIBS="$LIBS -lsocket -lnsl -lkstat") | |
81 | ||
82 | dnl | |
83 | dnl **** select() **** | |
84 | dnl | |
85 | ||
86 | AC_CHECKING(select) | |
87 | AC_TRY_LINK(,[select(0, 0, 0, 0, 0);],, | |
88 | LIBS="$LIBS -lnet -lnsl" | |
89 | AC_CHECKING(select with $LIBS) | |
90 | AC_TRY_LINK(,[select(0, 0, 0, 0, 0);],, | |
91 | AC_MSG_ERROR(!!! no select - no screen)) | |
92 | ) | |
93 | dnl | |
94 | dnl **** check the select implementation **** | |
95 | dnl | |
96 | ||
97 | AC_CHECKING(select return value) | |
98 | AC_TRY_RUN([ | |
99 | #include <sys/types.h> | |
100 | #include <sys/stat.h> | |
101 | #include <fcntl.h> | |
102 | ||
103 | char *nam = "/tmp/conftest$$"; | |
104 | ||
105 | #ifdef NAMEDPIPE | |
106 | ||
107 | #ifndef O_NONBLOCK | |
108 | #define O_NONBLOCK O_NDELAY | |
109 | #endif | |
110 | #ifndef S_IFIFO | |
111 | #define S_IFIFO 0010000 | |
112 | #endif | |
113 | ||
114 | ||
115 | main() | |
116 | { | |
117 | #ifdef FD_SET | |
118 | fd_set f; | |
119 | #else | |
120 | int f; | |
121 | #endif | |
122 | ||
123 | #ifdef __FreeBSD__ | |
124 | /* From Andrew A. Chernov (ache@astral.msk.su): | |
125 | * opening RDWR fifo fails in BSD 4.4, but select return values are | |
126 | * right. | |
127 | */ | |
128 | exit(0); | |
129 | #endif | |
130 | (void)alarm(5); | |
131 | #ifdef POSIX | |
132 | if (mkfifo(nam, 0777)) | |
133 | #else | |
134 | if (mknod(nam, S_IFIFO|0777, 0)) | |
135 | #endif | |
136 | exit(1); | |
137 | close(0); | |
138 | if (open(nam, O_RDWR | O_NONBLOCK)) | |
139 | exit(1); | |
140 | if (write(0, "TEST", 4) == -1) | |
141 | exit(1); | |
142 | ||
143 | #else | |
144 | ||
145 | #include <sys/types.h> | |
146 | #include <sys/socket.h> | |
147 | #include <sys/un.h> | |
148 | ||
149 | main() | |
150 | { | |
151 | int s1, s2, l; | |
152 | struct sockaddr_un a; | |
153 | #ifdef FD_SET | |
154 | fd_set f; | |
155 | #else | |
156 | int f; | |
157 | #endif | |
158 | ||
159 | (void)alarm(5); | |
160 | if ((s1 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) | |
161 | exit(1); | |
162 | a.sun_family = AF_UNIX; | |
163 | strcpy(a.sun_path, nam); | |
164 | (void) unlink(nam); | |
165 | if (bind(s1, (struct sockaddr *) &a, strlen(nam)+2) == -1) | |
166 | exit(1); | |
167 | if (listen(s1, 2)) | |
168 | exit(1); | |
169 | if (fork() == 0) | |
170 | { | |
171 | if ((s2 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1) | |
172 | kill(getppid(), 3); | |
173 | (void)connect(s2, (struct sockaddr *)&a, strlen(nam) + 2); | |
174 | if (write(s2, "HELLO", 5) == -1) | |
175 | kill(getppid(), 3); | |
176 | exit(0); | |
177 | } | |
178 | l = sizeof(a); | |
179 | close(0); | |
180 | if (accept(s1, (struct sockaddr *)&a, &l)) | |
181 | exit(1); | |
182 | #endif | |
183 | ||
184 | ||
185 | #ifdef FD_SET | |
186 | FD_SET(0, &f); | |
187 | #else | |
188 | f = 1; | |
189 | #endif | |
190 | if (select(1, &f, 0, 0, 0) == -1) | |
191 | exit(1); | |
192 | if (select(1, &f, &f, 0, 0) != 2) | |
193 | exit(1); | |
194 | exit(0); | |
195 | } | |
196 | ],AC_NOTE(- select is ok), | |
197 | AC_NOTE(- select can't count) AC_DEFINE(SELECT_BROKEN)) | |
198 | ||
199 | dnl | |
200 | dnl **** termcap or terminfo **** | |
201 | dnl | |
202 | AC_CHECKING(for tgetent) | |
203 | AC_TRY_LINK(,tgetent((char *)0, (char *)0);,, | |
204 | olibs="$LIBS" | |
205 | LIBS="-lcurses $olibs" | |
206 | AC_CHECKING(libcurses) | |
207 | AC_TRY_LINK(,[ | |
208 | #ifdef __hpux | |
209 | __sorry_hpux_libcurses_is_totally_broken_in_10_10(); | |
210 | #else | |
211 | tgetent((char *)0, (char *)0); | |
212 | #endif | |
213 | ],, | |
214 | LIBS="-ltermcap $olibs" | |
215 | AC_CHECKING(libtermcap) | |
216 | AC_TRY_LINK(,tgetent((char *)0, (char *)0);,, | |
217 | LIBS="-ltermlib $olibs" | |
218 | AC_CHECKING(libtermlib) | |
219 | AC_TRY_LINK(,tgetent((char *)0, (char *)0);,, | |
220 | LIBS="-lncurses $olibs" | |
221 | AC_CHECKING(libncurses) | |
222 | AC_TRY_LINK(,tgetent((char *)0, (char *)0);,, | |
223 | AC_MSG_ERROR(!!! no tgetent - no screen)))))) | |
224 | ||
225 | AC_TRY_RUN([ | |
226 | main() | |
227 | { | |
228 | exit(strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1); | |
229 | }], AC_NOTE(- you use the termcap database), | |
230 | AC_NOTE(- you use the terminfo database) AC_DEFINE(TERMINFO)) | |
231 | AC_CHECKING(ospeed) | |
232 | AC_TRY_LINK(extern short ospeed;,ospeed=5;,,AC_DEFINE(NEED_OSPEED)) | |
233 | ||
234 | dnl | |
235 | dnl **** PTY specific things **** | |
236 | dnl | |
237 | AC_CHECKING(for /dev/ptc) | |
238 | if test -r /dev/ptc; then | |
239 | AC_DEFINE(HAVE_DEV_PTC) | |
240 | fi | |
241 | ||
242 | AC_CHECKING(for SVR4 ptys) | |
243 | sysvr4ptys= | |
244 | if test -c /dev/ptmx ; then | |
245 | AC_TRY_LINK([],[ptsname(0);grantpt(0);unlockpt(0);],[AC_DEFINE(HAVE_SVR4_PTYS) | |
246 | sysvr4ptys=1]) | |
247 | fi | |
248 | ||
249 | AC_CHECK_FUNCS(getpt) | |
250 | ||
251 | dnl check for openpty() | |
252 | if test -z "$sysvr4ptys"; then | |
253 | AC_CHECK_FUNCS(openpty,, | |
254 | [AC_CHECK_LIB(util,openpty, [AC_DEFINE(HAVE_OPENPTY)] [LIBS="$LIBS -lutil"])]) | |
255 | fi | |
256 | ||
257 | AC_CHECKING(for ptyranges) | |
258 | if test -d /dev/ptym ; then | |
259 | pdir='/dev/ptym' | |
260 | else | |
261 | pdir='/dev' | |
262 | fi | |
263 | dnl SCO uses ptyp%d | |
264 | AC_EGREP_CPP(yes, | |
265 | [#ifdef M_UNIX | |
266 | yes; | |
267 | #endif | |
268 | ], ptys=`echo /dev/ptyp??`, ptys=`echo $pdir/pty??`) | |
269 | dnl if test -c /dev/ptyp19; then | |
270 | dnl ptys=`echo /dev/ptyp??` | |
271 | dnl else | |
272 | dnl ptys=`echo $pdir/pty??` | |
273 | dnl fi | |
274 | if test "$ptys" != "$pdir/pty??" ; then | |
275 | p0=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\).$/\1/g' | sort -u | tr -d '\012'` | |
276 | p1=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\)$/\1/g' | sort -u | tr -d '\012'` | |
277 | AC_DEFINE_UNQUOTED(PTYRANGE0,"$p0") | |
278 | AC_DEFINE_UNQUOTED(PTYRANGE1,"$p1") | |
279 | fi | |
280 | ||
281 | dnl **** pty mode/group handling **** | |
282 | dnl | |
283 | dnl support provided by Luke Mewburn <lm@rmit.edu.au>, 931222 | |
284 | AC_ARG_WITH(pty-mode, [ --with-pty-mode=mode default mode for ptys], [ ptymode="${withval}" ]) | |
285 | AC_ARG_WITH(pty-group, [ --with-pty-group=group default group for ptys], [ ptygrp="${withval}" ]) | |
286 | test -n "$ptymode" || ptymode=0620 | |
287 | if test -n "$ptygrp" ; then | |
288 | AC_DEFINE_UNQUOTED(PTYMODE, $ptymode) | |
289 | AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp) | |
290 | else | |
291 | ||
292 | AC_CHECKING(default tty permissions/group) | |
293 | rm -f conftest_grp | |
294 | AC_TRY_RUN([ | |
295 | #include <sys/types.h> | |
296 | #include <sys/stat.h> | |
297 | #include <stdio.h> | |
298 | main() | |
299 | { | |
300 | struct stat sb; | |
301 | char *x,*ttyname(); | |
302 | int om, m; | |
303 | FILE *fp; | |
304 | ||
305 | if (!(x = ttyname(0))) exit(1); | |
306 | if (stat(x, &sb)) exit(1); | |
307 | om = sb.st_mode; | |
308 | if (om & 002) exit(0); | |
309 | m = system("mesg y"); | |
310 | if (m == -1 || m == 127) exit(1); | |
311 | if (stat(x, &sb)) exit(1); | |
312 | m = sb.st_mode; | |
313 | if (chmod(x, om)) exit(1); | |
314 | if (m & 002) exit(0); | |
315 | if (sb.st_gid == getgid()) exit(1); | |
316 | if (!(fp=fopen("conftest_grp", "w"))) | |
317 | exit(1); | |
318 | fprintf(fp, "%d\n", sb.st_gid); | |
319 | fclose(fp); | |
320 | exit(0); | |
321 | } | |
322 | ],[ | |
323 | if test -f conftest_grp; then | |
324 | ptygrp=`cat conftest_grp` | |
325 | AC_NOTE([- pty mode: $ptymode, group: $ptygrp]) | |
326 | AC_DEFINE_UNQUOTED(PTYMODE, $ptymode) | |
327 | AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp) | |
328 | else | |
329 | AC_NOTE(- ptys are world accessable) | |
330 | fi | |
331 | ],[ | |
332 | WRITEPATH='' | |
333 | XTERMPATH='' | |
334 | AC_PATH_PROG(WRITEPATH, write) | |
335 | AC_PATH_PROG(XTERMPATH, xterm) | |
336 | found= | |
337 | if test -n "$WRITEPATH$XTERMPATH"; then | |
338 | findfollow= | |
339 | lsfollow= | |
340 | found=`find $WRITEPATH $XTERMPATH -follow -print 2>/dev/null` | |
341 | if test -n "$found"; then | |
342 | findfollow=-follow | |
343 | lsfollow=L | |
344 | fi | |
345 | if test -n "$XTERMPATH"; then | |
346 | ptygrpn=`ls -l$lsfollow $XTERMPATH | sed -n -e 1p | $AWK '{print $4}'` | |
347 | if test tty != "$ptygrpn"; then | |
348 | XTERMPATH= | |
349 | fi | |
350 | fi | |
351 | fi | |
352 | if test -n "$WRITEPATH$XTERMPATH"; then | |
353 | found=`find $WRITEPATH $XTERMPATH $findfollow -perm -2000 -print` | |
354 | if test -n "$found"; then | |
355 | ptygrp=`ls -ln$lsfollow $found | sed -n -e 1p | $AWK '{print $4}'` | |
356 | AC_NOTE([- pty mode: $ptymode, group: $ptygrp]) | |
357 | AC_DEFINE_UNQUOTED(PTYMODE, $ptymode) | |
358 | AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp) | |
359 | else | |
360 | AC_NOTE(- ptys are world accessable) | |
361 | fi | |
362 | else | |
363 | AC_NOTE(- can't determine - assume ptys are world accessable) | |
364 | fi | |
365 | ] | |
366 | ) | |
367 | rm -f conftest_grp | |
368 | fi | |
369 | ||
370 | dnl | |
371 | dnl **** signal handling **** | |
372 | dnl | |
373 | if test -n "$posix" ; then | |
374 | ||
375 | dnl POSIX has reliable signals with void return type. | |
376 | AC_NOTE(assuming posix signal definition) | |
377 | AC_DEFINE(SIGVOID) | |
378 | ||
379 | else | |
380 | ||
381 | AC_CHECKING(return type of signal handlers) | |
382 | AC_TRY_COMPILE( | |
383 | [#include <sys/types.h> | |
384 | #include <signal.h> | |
385 | #ifdef signal | |
386 | #undef signal | |
387 | #endif | |
388 | extern void (*signal ()) ();], [int i;], AC_DEFINE(SIGVOID)) | |
389 | AC_CHECKING(sigset) | |
390 | AC_TRY_LINK([ | |
391 | #include <sys/types.h> | |
392 | #include <signal.h> | |
393 | ],[ | |
394 | #ifdef SIGVOID | |
395 | sigset(0, (void (*)())0); | |
396 | #else | |
397 | sigset(0, (int (*)())0); | |
398 | #endif | |
399 | ], AC_DEFINE(USESIGSET)) | |
400 | AC_CHECKING(signal implementation) | |
401 | AC_TRY_RUN([ | |
402 | #include <sys/types.h> | |
403 | #include <signal.h> | |
404 | ||
405 | #ifndef SIGCLD | |
406 | #define SIGCLD SIGCHLD | |
407 | #endif | |
408 | #ifdef USESIGSET | |
409 | #define signal sigset | |
410 | #endif | |
411 | ||
412 | int got; | |
413 | ||
414 | #ifdef SIGVOID | |
415 | void | |
416 | #endif | |
417 | hand() | |
418 | { | |
419 | got++; | |
420 | } | |
421 | ||
422 | main() | |
423 | { | |
424 | /* on hpux we use sigvec to get bsd signals */ | |
425 | #ifdef __hpux | |
426 | (void)signal(SIGCLD, hand); | |
427 | kill(getpid(), SIGCLD); | |
428 | kill(getpid(), SIGCLD); | |
429 | if (got < 2) | |
430 | exit(1); | |
431 | #endif | |
432 | exit(0); | |
433 | } | |
434 | ],,AC_DEFINE(SYSVSIGS)) | |
435 | ||
436 | fi | |
437 | ||
438 | AC_OUTPUT(Makefile) |