readline/examples/rlfe/configure.in

   1 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 <<EOF
  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($ac_compile)
  50 AC_MSG_ERROR(Can't run the compiler - sorry))
  51
  52 AC_TRY_RUN([
  53 main()
  54 {
  55   int __something_strange_();
  56   __something_strange_(0);
  57 }
  58 ],AC_MSG_ERROR(Your compiler does not set the exit status - sorry))
  59
  60 AC_PROG_AWK
  61
  62 if test -f etc/toolcheck; then
  63 AC_CHECKING(for buggy tools)
  64 sh etc/toolcheck 1>&AC_FD_MSG
  65 fi
  66
  67 dnl
  68 dnl    ****  special unix variants  ****
  69 dnl
  70
  71 AC_CHECKING(for System V)
  72 AC_TRY_COMPILE(
  73 [#include <sys/types.h>
  74 #include <signal.h>
  75 #include <fcntl.h>], [int x = SIGCHLD | FNDELAY;], , AC_DEFINE(SYSV))
  76
  77 AC_CHECKING(for Solaris 2.x)
  78 AC_EGREP_CPP(yes,
  79 [#if defined(SVR4) && defined(sun)
  80   yes
  81 #endif
  82 ], LIBS="$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 <sys/types.h>
 102 #include <sys/stat.h>
 103 #include <fcntl.h>
 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 <sys/types.h>
 148 #include <sys/socket.h>
 149 #include <sys/un.h>
 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,"$p1")
 281 fi
 282
 283 dnl    ****  pty mode/group handling ****
 284 dnl
 285 dnl support provided by Luke Mewburn <lm@rmit.edu.au>, 931222
 286 AC_ARG_WITH(pty-mode, [  --with-pty-mode=mode    default mode for ptys], [ ptymode="${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 <sys/types.h>
 298 #include <sys/stat.h>
 299 #include <stdio.h>
 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 <sys/types.h>
 386 #include <signal.h>
 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 <sys/types.h>
 394 #include <signal.h>
 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 <sys/types.h>
 405 #include <signal.h>
 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)