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[/] [openrisc/] [trunk/] [gnu-stable/] [gdb-7.2/] [readline/] [examples/] [rlfe/] [configure.in] - Blame information for rev 841

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Line No. Rev Author Line
1 330 jeremybenn 
dnl Process this file with autoconf to produce a configure script.
2 
 
3 
m4_include([../../../config/override.m4])
4 
 
5 
AC_INIT(rlfe.c)
6 
AC_CONFIG_HEADER(config.h)
7 
VERSION=0.4
8 
AC_SUBST(VERSION)
9 
 
10 
dnl
11 
dnl Define some useful macros
12 
dnl
13 
AC_DEFUN([AC_PROGRAM_SOURCE],
14 
[AC_REQUIRE([AC_PROG_CPP])AC_PROVIDE([$0])cat > conftest.c <
15 
#include "confdefs.h"
16 
[$1]
17 
_CUT_HERE_
18 
[$2]
19 
EOF
20 
eval "$ac_cpp conftest.c 2>&5 | sed -e '1,/_CUT_HERE_/d' -e 's/ //g' > conftest.out"
21 
. ./conftest.out
22 
rm -f conftest*
23 
])dnl
24 
dnl
25 
define(AC_NOTE,
26 
[echo "$1" 1>&AC_FD_MSG
27 
])dnl
28 
 
29 
old_CFLAGS="$CFLAGS"
30 
AC_PROG_CC
31 
AC_PROG_CPP
32 
AC_PROG_GCC_TRADITIONAL
33 
AC_ISC_POSIX
34 
 
35 
AC_TRY_RUN(main(){exit(0);},,[
36 
if test $CC != cc ; then
37 
AC_NOTE(Your $CC failed - restarting with CC=cc)
38 
AC_NOTE()
39 
CC=cc
40 
export CC
41 
exec $0 $configure_args
42 
fi
43 
])
44 
 
45 
AC_TRY_RUN(main(){exit(0);},,
46 
exec 5>&2
47 
eval $ac_link
48 
AC_NOTE(CC=$CC; CFLAGS=$CFLAGS; LIBS=$LIBS;)
49 
AC_NOTE($ac_compile)
50 
AC_MSG_ERROR(Can't run the compiler - sorry))
51 
 
52 
AC_TRY_RUN([
53 
main()
54 
{
55 
  int __something_strange_();
56 
  __something_strange_(0);
57 
}
58 
],AC_MSG_ERROR(Your compiler does not set the exit status - sorry))
59 
 
60 
AC_PROG_AWK
61 
 
62 
if test -f etc/toolcheck; then
63 
AC_CHECKING(for buggy tools)
64 
sh etc/toolcheck 1>&AC_FD_MSG
65 
fi
66 
 
67 
dnl
68 
dnl    ****  special unix variants  ****
69 
dnl
70 
 
71 
AC_CHECKING(for System V)
72 
AC_TRY_COMPILE(
73 
[#include
74 
#include
75 
#include ], [int x = SIGCHLD | FNDELAY;], , AC_DEFINE(SYSV))
76 
 
77 
AC_CHECKING(for Solaris 2.x)
78 
AC_EGREP_CPP(yes,
79 
[#if defined(SVR4) && defined(sun)
80 
  yes
81 
#endif
82 
], LIBS="$LIBS -lsocket -lnsl -lkstat")
83 
 
84 
dnl
85 
dnl    ****  select()  ****
86 
dnl
87 
 
88 
AC_CHECKING(select)
89 
AC_TRY_LINK(,[select(0, 0, 0, 0, 0);],,
90 
LIBS="$LIBS -lnet -lnsl"
91 
AC_CHECKING(select with $LIBS)
92 
AC_TRY_LINK(,[select(0, 0, 0, 0, 0);],,
93 
AC_MSG_ERROR(!!! no select - no screen))
94 
)
95 
dnl
96 
dnl    ****  check the select implementation ****
97 
dnl
98 
 
99 
AC_CHECKING(select return value)
100 
AC_TRY_RUN([
101 
#include
102 
#include
103 
#include
104 
 
105 
char *nam = "/tmp/conftest$$";
106 
 
107 
#ifdef NAMEDPIPE
108 
 
109 
#ifndef O_NONBLOCK
110 
#define O_NONBLOCK O_NDELAY
111 
#endif
112 
#ifndef S_IFIFO
113 
#define S_IFIFO 0010000
114 
#endif
115 
 
116 
 
117 
main()
118 
{
119 
#ifdef FD_SET
120 
  fd_set f;
121 
#else
122 
  int f;
123 
#endif
124 
 
125 
#ifdef __FreeBSD__
126 
/* From Andrew A. Chernov (ache@astral.msk.su):
127 
 * opening RDWR fifo fails in BSD 4.4, but select return values are
128 
 * right.
129 
 */
130 
  exit(0);
131 
#endif
132 
  (void)alarm(5);
133 
#ifdef POSIX
134 
  if (mkfifo(nam, 0777))
135 
#else
136 
  if (mknod(nam, S_IFIFO|0777, 0))
137 
#endif
138 
    exit(1);
139 
  close(0);
140 
  if (open(nam, O_RDWR | O_NONBLOCK))
141 
    exit(1);
142 
  if (write(0, "TEST", 4) == -1)
143 
    exit(1);
144 
 
145 
#else
146 
 
147 
#include
148 
#include
149 
#include
150 
 
151 
main()
152 
{
153 
  int s1, s2, l;
154 
  struct sockaddr_un a;
155 
#ifdef FD_SET
156 
  fd_set f;
157 
#else
158 
  int f;
159 
#endif
160 
 
161 
  (void)alarm(5);
162 
  if ((s1 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
163 
    exit(1);
164 
  a.sun_family = AF_UNIX;
165 
  strcpy(a.sun_path, nam);
166 
  (void) unlink(nam);
167 
  if (bind(s1, (struct sockaddr *) &a, strlen(nam)+2) == -1)
168 
    exit(1);
169 
  if (listen(s1, 2))
170 
    exit(1);
171 
  if (fork() == 0)
172 
    {
173 
      if ((s2 = socket(AF_UNIX, SOCK_STREAM, 0)) == -1)
174 
        kill(getppid(), 3);
175 
      (void)connect(s2, (struct sockaddr *)&a, strlen(nam) + 2);
176 
      if (write(s2, "HELLO", 5) == -1)
177 
        kill(getppid(), 3);
178 
      exit(0);
179 
    }
180 
  l = sizeof(a);
181 
  close(0);
182 
  if (accept(s1, (struct sockaddr *)&a, &l))
183 
    exit(1);
184 
#endif
185 
 
186 
 
187 
#ifdef FD_SET
188 
  FD_SET(0, &f);
189 
#else
190 
  f = 1;
191 
#endif
192 
  if (select(1, &f, 0, 0, 0) == -1)
193 
    exit(1);
194 
  if (select(1, &f, &f, 0, 0) != 2)
195 
    exit(1);
196 
  exit(0);
197 
}
198 
],AC_NOTE(- select is ok),
199 
AC_NOTE(- select can't count) AC_DEFINE(SELECT_BROKEN))
200 
 
201 
dnl
202 
dnl    ****  termcap or terminfo  ****
203 
dnl
204 
AC_CHECKING(for tgetent)
205 
AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
206 
olibs="$LIBS"
207 
LIBS="-lcurses $olibs"
208 
AC_CHECKING(libcurses)
209 
AC_TRY_LINK(,[
210 
#ifdef __hpux
211 
__sorry_hpux_libcurses_is_totally_broken_in_10_10();
212 
#else
213 
tgetent((char *)0, (char *)0);
214 
#endif
215 
],,
216 
LIBS="-ltermcap $olibs"
217 
AC_CHECKING(libtermcap)
218 
AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
219 
LIBS="-ltermlib $olibs"
220 
AC_CHECKING(libtermlib)
221 
AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
222 
LIBS="-lncurses $olibs"
223 
AC_CHECKING(libncurses)
224 
AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
225 
AC_MSG_ERROR(!!! no tgetent - no screen))))))
226 
 
227 
AC_TRY_RUN([
228 
main()
229 
{
230 
 exit(strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1);
231 
}], AC_NOTE(- you use the termcap database),
232 
AC_NOTE(- you use the terminfo database) AC_DEFINE(TERMINFO))
233 
AC_CHECKING(ospeed)
234 
AC_TRY_LINK(extern short ospeed;,ospeed=5;,,AC_DEFINE(NEED_OSPEED))
235 
 
236 
dnl
237 
dnl    ****  PTY specific things  ****
238 
dnl
239 
AC_CHECKING(for /dev/ptc)
240 
if test -r /dev/ptc; then
241 
AC_DEFINE(HAVE_DEV_PTC)
242 
fi
243 
 
244 
AC_CHECKING(for SVR4 ptys)
245 
sysvr4ptys=
246 
if test -c /dev/ptmx ; then
247 
AC_TRY_LINK([],[ptsname(0);grantpt(0);unlockpt(0);],[AC_DEFINE(HAVE_SVR4_PTYS)
248 
sysvr4ptys=1])
249 
fi
250 
 
251 
AC_CHECK_FUNCS(getpt)
252 
 
253 
dnl check for openpty()
254 
if test -z "$sysvr4ptys"; then
255 
AC_CHECK_FUNCS(openpty,,
256 
[AC_CHECK_LIB(util,openpty, [AC_DEFINE(HAVE_OPENPTY)] [LIBS="$LIBS -lutil"])])
257 
fi
258 
 
259 
AC_CHECKING(for ptyranges)
260 
if test -d /dev/ptym ; then
261 
pdir='/dev/ptym'
262 
else
263 
pdir='/dev'
264 
fi
265 
dnl SCO uses ptyp%d
266 
AC_EGREP_CPP(yes,
267 
[#ifdef M_UNIX
268 
   yes;
269 
#endif
270 
], ptys=`echo /dev/ptyp??`, ptys=`echo $pdir/pty??`)
271 
dnl if test -c /dev/ptyp19; then
272 
dnl ptys=`echo /dev/ptyp??`
273 
dnl else
274 
dnl ptys=`echo $pdir/pty??`
275 
dnl fi
276 
if test "$ptys" != "$pdir/pty??" ; then
277 
p0=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\).$/\1/g' | sort -u | tr -d '\012'`
278 
p1=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\)$/\1/g'  | sort -u | tr -d '\012'`
279 
AC_DEFINE_UNQUOTED(PTYRANGE0,"$p0")
280 
AC_DEFINE_UNQUOTED(PTYRANGE1,"$p1")
281 
fi
282 
 
283 
dnl    ****  pty mode/group handling ****
284 
dnl
285 
dnl support provided by Luke Mewburn , 931222
286 
AC_ARG_WITH(pty-mode, [  --with-pty-mode=mode    default mode for ptys], [ ptymode="${withval}" ])
287 
AC_ARG_WITH(pty-group, [  --with-pty-group=group  default group for ptys], [ ptygrp="${withval}" ])
288 
test -n "$ptymode" || ptymode=0620
289 
if test -n "$ptygrp" ; then
290 
AC_DEFINE_UNQUOTED(PTYMODE, $ptymode)
291 
AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp)
292 
else
293 
 
294 
AC_CHECKING(default tty permissions/group)
295 
rm -f conftest_grp
296 
AC_TRY_RUN([
297 
#include
298 
#include
299 
#include
300 
main()
301 
{
302 
  struct stat sb;
303 
  char *x,*ttyname();
304 
  int om, m;
305 
  FILE *fp;
306 
 
307 
  if (!(x = ttyname(0))) exit(1);
308 
  if (stat(x, &sb)) exit(1);
309 
  om = sb.st_mode;
310 
  if (om & 002) exit(0);
311 
  m = system("mesg y");
312 
  if (m == -1 || m == 127) exit(1);
313 
  if (stat(x, &sb)) exit(1);
314 
  m = sb.st_mode;
315 
  if (chmod(x, om)) exit(1);
316 
  if (m & 002) exit(0);
317 
  if (sb.st_gid == getgid()) exit(1);
318 
  if (!(fp=fopen("conftest_grp", "w")))
319 
    exit(1);
320 
  fprintf(fp, "%d\n", sb.st_gid);
321 
  fclose(fp);
322 
  exit(0);
323 
}
324 
],[
325 
    if test -f conftest_grp; then
326 
        ptygrp=`cat conftest_grp`
327 
        AC_NOTE([- pty mode: $ptymode, group: $ptygrp])
328 
        AC_DEFINE_UNQUOTED(PTYMODE, $ptymode)
329 
        AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp)
330 
    else
331 
        AC_NOTE(- ptys are world accessable)
332 
    fi
333 
],[
334 
    WRITEPATH=''
335 
    XTERMPATH=''
336 
    AC_PATH_PROG(WRITEPATH, write)
337 
    AC_PATH_PROG(XTERMPATH, xterm)
338 
    found=
339 
    if test -n "$WRITEPATH$XTERMPATH"; then
340 
      findfollow=
341 
      lsfollow=
342 
      found=`find $WRITEPATH $XTERMPATH -follow -print 2>/dev/null`
343 
      if test -n "$found"; then
344 
        findfollow=-follow
345 
        lsfollow=L
346 
      fi
347 
      if test -n "$XTERMPATH"; then
348 
        ptygrpn=`ls -l$lsfollow $XTERMPATH | sed -n -e 1p | $AWK '{print $4}'`
349 
        if test tty != "$ptygrpn"; then
350 
          XTERMPATH=
351 
        fi
352 
      fi
353 
    fi
354 
    if test -n "$WRITEPATH$XTERMPATH"; then
355 
      found=`find $WRITEPATH $XTERMPATH $findfollow -perm -2000 -print`
356 
      if test -n "$found"; then
357 
        ptygrp=`ls -ln$lsfollow $found | sed -n -e 1p | $AWK '{print $4}'`
358 
        AC_NOTE([- pty mode: $ptymode, group: $ptygrp])
359 
        AC_DEFINE_UNQUOTED(PTYMODE, $ptymode)
360 
        AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp)
361 
      else
362 
        AC_NOTE(- ptys are world accessable)
363 
      fi
364 
    else
365 
      AC_NOTE(- can't determine - assume ptys are world accessable)
366 
    fi
367 
  ]
368 
)
369 
rm -f conftest_grp
370 
fi
371 
 
372 
dnl
373 
dnl    ****  signal handling  ****
374 
dnl
375 
if test -n "$posix" ; then
376 
 
377 
dnl POSIX has reliable signals with void return type.
378 
AC_NOTE(assuming posix signal definition)
379 
AC_DEFINE(SIGVOID)
380 
 
381 
else
382 
 
383 
AC_CHECKING(return type of signal handlers)
384 
AC_TRY_COMPILE(
385 
[#include
386 
#include
387 
#ifdef signal
388 
#undef signal
389 
#endif
390 
extern void (*signal ()) ();], [int i;], AC_DEFINE(SIGVOID))
391 
AC_CHECKING(sigset)
392 
AC_TRY_LINK([
393 
#include
394 
#include
395 
],[
396 
#ifdef SIGVOID
397 
sigset(0, (void (*)())0);
398 
#else
399 
sigset(0, (int (*)())0);
400 
#endif
401 
], AC_DEFINE(USESIGSET))
402 
AC_CHECKING(signal implementation)
403 
AC_TRY_RUN([
404 
#include
405 
#include
406 
 
407 
#ifndef SIGCLD
408 
#define SIGCLD SIGCHLD
409 
#endif
410 
#ifdef USESIGSET
411 
#define signal sigset
412 
#endif
413 
 
414 
int got;
415 
 
416 
#ifdef SIGVOID
417 
void
418 
#endif
419 
hand()
420 
{
421 
  got++;
422 
}
423 
 
424 
main()
425 
{
426 
  /* on hpux we use sigvec to get bsd signals */
427 
#ifdef __hpux
428 
  (void)signal(SIGCLD, hand);
429 
  kill(getpid(), SIGCLD);
430 
  kill(getpid(), SIGCLD);
431 
  if (got < 2)
432 
    exit(1);
433 
#endif
434 
  exit(0);
435 
}
436 
],,AC_DEFINE(SYSVSIGS))
437 
 
438 
fi
439 
 
440 
AC_OUTPUT(Makefile)

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