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 $olibs"
 223 AC_CHECKING(libncurses)
 224 AC_TRY_LINK(,tgetent((char *)0, (char *)0);,,
 225 AC_MSG_ERROR(!!! no tgetent - no screen))))))
 226
 227 AC_TRY_RUN([
 228 extern char *tgoto();
 229 main()
 230 {
 231  exit(strcmp(tgoto("%p1%d", 0, 1), "1") ? 0 : 1);
 232 }], AC_NOTE(- you use the termcap database),
 233 AC_NOTE(- you use the terminfo database) AC_DEFINE(TERMINFO))
 234 AC_CHECKING(ospeed)
 235 AC_TRY_LINK(extern short ospeed;,ospeed=5;,,AC_DEFINE(NEED_OSPEED))
 236
 237 dnl
 238 dnl    ****  PTY specific things  ****
 239 dnl
 240 AC_CHECKING(for /dev/ptc)
 241 if test -r /dev/ptc; then
 242 AC_DEFINE(HAVE_DEV_PTC)
 243 fi
 244
 245 AC_CHECKING(for SVR4 ptys)
 246 sysvr4ptys=
 247 if test -c /dev/ptmx ; then
 248 AC_TRY_LINK([],[ptsname(0);grantpt(0);unlockpt(0);],[AC_DEFINE(HAVE_SVR4_PTYS)
 249 sysvr4ptys=1])
 250 fi
 251
 252 AC_CHECK_FUNCS(getpt)
 253
 254 dnl check for openpty()
 255 if test -z "$sysvr4ptys"; then
 256 AC_CHECK_FUNCS(openpty,,
 257 [AC_CHECK_LIB(util,openpty, [AC_DEFINE(HAVE_OPENPTY)] [LIBS="$LIBS -lutil"])])
 258 fi
 259
 260 AC_CHECKING(for ptyranges)
 261 if test -d /dev/ptym ; then
 262 pdir='/dev/ptym'
 263 else
 264 pdir='/dev'
 265 fi
 266 dnl SCO uses ptyp%d
 267 AC_EGREP_CPP(yes,
 268 [#ifdef M_UNIX
 269    yes;
 270 #endif
 271 ], ptys=`echo /dev/ptyp??`, ptys=`echo $pdir/pty??`)
 272 dnl if test -c /dev/ptyp19; then
 273 dnl ptys=`echo /dev/ptyp??`
 274 dnl else
 275 dnl ptys=`echo $pdir/pty??`
 276 dnl fi
 277 if test "$ptys" != "$pdir/pty??" ; then
 278 p0=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\).$/\1/g' | sort -u | tr -d '\012'`
 279 p1=`echo $ptys | tr ' ' '\012' | sed -e 's/^.*\(.\)$/\1/g'  | sort -u | tr -d '\012'`
 280 AC_DEFINE_UNQUOTED(PTYRANGE0,"$p0")
 281 AC_DEFINE_UNQUOTED(PTYRANGE1,"$p1")
 282 fi
 283
 284 dnl    ****  pty mode/group handling ****
 285 dnl
 286 dnl support provided by Luke Mewburn <lm@rmit.edu.au>, 931222
 287 AC_ARG_WITH(pty-mode, [  --with-pty-mode=mode    default mode for ptys], [ ptymode="${withval}" ])
 288 AC_ARG_WITH(pty-group, [  --with-pty-group=group  default group for ptys], [ ptygrp="${withval}" ])
 289 test -n "$ptymode" || ptymode=0620
 290 if test -n "$ptygrp" ; then
 291 AC_DEFINE_UNQUOTED(PTYMODE, $ptymode)
 292 AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp)
 293 else
 294
 295 AC_CHECKING(default tty permissions/group)
 296 rm -f conftest_grp
 297 AC_TRY_RUN([
 298 #include <sys/types.h>
 299 #include <sys/stat.h>
 300 #include <stdio.h>
 301 main()
 302 {
 303   struct stat sb;
 304   char *x,*ttyname();
 305   int om, m;
 306   FILE *fp;
 307
 308   if (!(x = ttyname(0))) exit(1);
 309   if (stat(x, &sb)) exit(1);
 310   om = sb.st_mode;
 311   if (om & 002) exit(0);
 312   m = system("mesg y");
 313   if (m == -1 || m == 127) exit(1);
 314   if (stat(x, &sb)) exit(1);
 315   m = sb.st_mode;
 316   if (chmod(x, om)) exit(1);
 317   if (m & 002) exit(0);
 318   if (sb.st_gid == getgid()) exit(1);
 319   if (!(fp=fopen("conftest_grp", "w")))
 320     exit(1);
 321   fprintf(fp, "%d\n", sb.st_gid);
 322   fclose(fp);
 323   exit(0);
 324 }
 325 ],[
 326     if test -f conftest_grp; then
 327         ptygrp=`cat conftest_grp`
 328         AC_NOTE([- pty mode: $ptymode, group: $ptygrp])
 329         AC_DEFINE_UNQUOTED(PTYMODE, $ptymode)
 330         AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp)
 331     else
 332         AC_NOTE(- ptys are world accessable)
 333     fi
 334 ],[
 335     WRITEPATH=''
 336     XTERMPATH=''
 337     AC_PATH_PROG(WRITEPATH, write)
 338     AC_PATH_PROG(XTERMPATH, xterm)
 339     found=
 340     if test -n "$WRITEPATH$XTERMPATH"; then
 341       findfollow=
 342       lsfollow=
 343       found=`find $WRITEPATH $XTERMPATH -follow -print 2>/dev/null`
 344       if test -n "$found"; then
 345         findfollow=-follow
 346         lsfollow=L
 347       fi
 348       if test -n "$XTERMPATH"; then
 349         ptygrpn=`ls -l$lsfollow $XTERMPATH | sed -n -e 1p | $AWK '{print $4}'`
 350         if test tty != "$ptygrpn"; then
 351           XTERMPATH=
 352         fi
 353       fi
 354     fi
 355     if test -n "$WRITEPATH$XTERMPATH"; then
 356       found=`find $WRITEPATH $XTERMPATH $findfollow -perm -2000 -print`
 357       if test -n "$found"; then
 358         ptygrp=`ls -ln$lsfollow $found | sed -n -e 1p | $AWK '{print $4}'`
 359         AC_NOTE([- pty mode: $ptymode, group: $ptygrp])
 360         AC_DEFINE_UNQUOTED(PTYMODE, $ptymode)
 361         AC_DEFINE_UNQUOTED(PTYGROUP,$ptygrp)
 362       else
 363         AC_NOTE(- ptys are world accessable)
 364       fi
 365     else
 366       AC_NOTE(- can't determine - assume ptys are world accessable)
 367     fi
 368   ]
 369 )
 370 rm -f conftest_grp
 371 fi
 372
 373 dnl
 374 dnl    ****  signal handling  ****
 375 dnl
 376 if test -n "$posix" ; then
 377
 378 dnl POSIX has reliable signals with void return type.
 379 AC_NOTE(assuming posix signal definition)
 380 AC_DEFINE(SIGVOID)
 381
 382 else
 383
 384 AC_CHECKING(return type of signal handlers)
 385 AC_TRY_COMPILE(
 386 [#include <sys/types.h>
 387 #include <signal.h>
 388 #ifdef signal
 389 #undef signal
 390 #endif
 391 extern void (*signal ()) ();], [int i;], AC_DEFINE(SIGVOID))
 392 AC_CHECKING(sigset)
 393 AC_TRY_LINK([
 394 #include <sys/types.h>
 395 #include <signal.h>
 396 ],[
 397 #ifdef SIGVOID
 398 sigset(0, (void (*)())0);
 399 #else
 400 sigset(0, (int (*)())0);
 401 #endif
 402 ], AC_DEFINE(USESIGSET))
 403 AC_CHECKING(signal implementation)
 404 AC_TRY_RUN([
 405 #include <sys/types.h>
 406 #include <signal.h>
 407
 408 #ifndef SIGCLD
 409 #define SIGCLD SIGCHLD
 410 #endif
 411 #ifdef USESIGSET
 412 #define signal sigset
 413 #endif
 414
 415 int got;
 416
 417 #ifdef SIGVOID
 418 void
 419 #endif
 420 hand()
 421 {
 422   got++;
 423 }
 424
 425 main()
 426 {
 427   /* on hpux we use sigvec to get bsd signals */
 428 #ifdef __hpux
 429   (void)signal(SIGCLD, hand);
 430   kill(getpid(), SIGCLD);
 431   kill(getpid(), SIGCLD);
 432   if (got < 2)
 433     exit(1);
 434 #endif
 435   exit(0);
 436 }
 437 ],,AC_DEFINE(SYSVSIGS))
 438
 439 fi
 440
 441 AC_CHECK_HEADERS(sys/stropts.h sys/wait.h sgtty.h sys/select.h)
 442 AC_CHECK_HEADERS(term.h)
 443
 444 AC_OUTPUT(Makefile)