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[/] [scarts/] [trunk/] [toolchain/] [scarts-gdb/] [gdb-6.8/] [readline/] [examples/] [rlfe/] [configure.in] - Blame information for rev 26

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1 26 jlechner 
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
11 
AC_DEFUN(AC_PROGRAM_SOURCE,
12 
[AC_REQUIRE([AC_PROG_CPP])AC_PROVIDE([$0])cat > conftest.c <
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
72 
#include
73 
#include ], [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
100 
#include
101 
#include
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
146 
#include
147 
#include
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 , 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
296 
#include
297 
#include
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
384 
#include
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
392 
#include
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
403 
#include
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)

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