gdb/configure.ac

   1 dnl Autoconf configure script for GDB, the GNU debugger.
   2 dnl Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
   3 dnl 2005, 2006
   4 dnl Free Software Foundation, Inc.
   5 dnl
   6 dnl This file is part of GDB.
   7 dnl
   8 dnl This program is free software; you can redistribute it and/or modify
   9 dnl it under the terms of the GNU General Public License as published by
  10 dnl the Free Software Foundation; either version 2 of the License, or
  11 dnl (at your option) any later version.
  12 dnl
  13 dnl This program is distributed in the hope that it will be useful,
  14 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 dnl GNU General Public License for more details.
  17 dnl
  18 dnl You should have received a copy of the GNU General Public License
  19 dnl along with this program; if not, write to the Free Software
  20 dnl Foundation, Inc., 51 Franklin Street, Fifth Floor,
  21 dnl Boston, MA 02110-1301, USA.
  22
  23 dnl Process this file with autoconf to produce a configure script.
  24
  25 AC_PREREQ(2.59)dnl
  26 AC_INIT(main.c)
  27 AC_CONFIG_HEADER(config.h:config.in)
  28 AM_MAINTAINER_MODE
  29
  30 AC_PROG_CC
  31 AC_GNU_SOURCE
  32 AC_AIX
  33 AC_ISC_POSIX
  34 AM_PROG_CC_STDC
  35
  36 AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
  37 AC_CANONICAL_SYSTEM
  38
  39 dnl List of object files and targets accumulated by configure.
  40
  41 CONFIG_OBS=
  42 CONFIG_DEPS=
  43 CONFIG_SRCS=
  44 ENABLE_CFLAGS=
  45
  46 CONFIG_ALL=
  47 CONFIG_CLEAN=
  48 CONFIG_INSTALL=
  49 CONFIG_UNINSTALL=
  50
  51 dnl Set up for gettext.  PACKAGE is used when we call bindtextdomain.
  52
  53 CY_GNU_GETTEXT
  54
  55 localedir='${datadir}/locale'
  56 AC_SUBST(localedir)
  57
  58 if test "x$POSUB" != x; then
  59
  60   dnl Lifted from GCC's config/gettext.m4.
  61   AC_MSG_CHECKING(for catalogs to be installed)
  62   # Look for .po and .gmo files in the source directory.
  63   CATALOGS=  AC_SUBST(CATALOGS)
  64   XLINGUAS=
  65   for cat in $srcdir/po/*.gmo $srcdir/po/*.po; do
  66     # If there aren't any .gmo files the shell will give us the
  67     # literal string "../path/to/srcdir/po/*.gmo" which has to be
  68     # weeded out.
  69     case "$cat" in *\**)
  70       continue;;
  71     esac
  72     # The quadruple backslash is collapsed to a double backslash
  73     # by the backticks, then collapsed again by the double quotes,
  74     # leaving us with one backslash in the sed expression (right
  75     # before the dot that mustn't act as a wildcard).
  76     cat=`echo $cat | sed -e "s!$srcdir/!!" -e "s!\\\\.po!.gmo!"`
  77     lang=`echo $cat | sed -e 's!po/!!' -e "s!\\\\.gmo!!"`
  78     # The user is allowed to set LINGUAS to a list of languages to
  79     # install catalogs for.  If it's empty that means "all of them."
  80     if test "x$LINGUAS" = x; then
  81       CATALOGS="$CATALOGS $cat"
  82       XLINGUAS="$XLINGUAS $lang"
  83     else
  84       case "$LINGUAS" in *$lang*)
  85         CATALOGS="$CATALOGS $cat"
  86         XLINGUAS="$XLINGUAS $lang"
  87         ;;
  88       esac
  89     fi
  90   done
  91   LINGUAS="$XLINGUAS"
  92   AC_MSG_RESULT($LINGUAS)
  93
  94    CONFIG_ALL="$CONFIG_ALL all-po"
  95    CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
  96    CONFIG_INSTALL="$CONFIG_INSTALL install-po"
  97    CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
  98 fi
  99
 100 PACKAGE=gdb
 101 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
 102 AC_SUBST(PACKAGE)
 103
 104 debugdir=${libdir}/debug
 105
 106 AC_ARG_WITH(separate-debug-dir,
 107 [  --with-separate-debug-dir=path   Look for global separate debug info in this path [LIBDIR/debug]],
 108 [debugdir="${withval}"])
 109
 110 AC_DEFINE_DIR(DEBUGDIR, debugdir,
 111               [Global directory for separate debug files. ])
 112 #AC_DEFINE_UNQUOTED(DEBUGDIR, "$debugdir"),
 113
 114 AC_CONFIG_SUBDIRS(doc testsuite)
 115
 116 # Provide defaults for some variables set by the per-host and per-target
 117 # configuration.
 118 gdb_host_obs=posix-hdep.o
 119
 120 . $srcdir/configure.host
 121
 122 . $srcdir/configure.tgt
 123
 124 # Fetch the default architecture and default target vector from BFD.
 125 targ=$target; . $srcdir/../bfd/config.bfd
 126
 127 # We only want the first architecture, so strip off the others if
 128 # there is more than one.
 129 targ_archs=`echo $targ_archs | sed 's/ .*//'`
 130
 131 if test "x$targ_archs" != x; then
 132   AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
 133     [Define to BFD's default architecture. ])
 134 fi
 135 if test "x$targ_defvec" != x; then
 136   AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
 137     [Define to BFD's default target vector. ])
 138 fi
 139
 140 AC_ARG_PROGRAM
 141
 142 # The CLI cannot be disabled yet, but may be in the future.
 143
 144 # Enable CLI.
 145 AC_ARG_ENABLE(gdbcli,
 146 [  --disable-gdbcli        disable command-line interface (CLI)],
 147   [case $enableval in
 148     yes)
 149       ;;
 150     no)
 151       AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
 152     *)
 153       AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
 154   esac],
 155   [enable_gdbcli=yes])
 156 if test x"$enable_gdbcli" = xyes; then
 157   if test -d $srcdir/cli; then
 158     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
 159     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
 160     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
 161     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
 162   fi
 163 fi
 164
 165 # Enable MI.
 166 AC_ARG_ENABLE(gdbmi,
 167 [  --disable-gdbmi         disable machine-interface (MI)],
 168   [case $enableval in
 169     yes | no)
 170       ;;
 171     *)
 172       AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
 173   esac],
 174   [enable_gdbmi=yes])
 175 if test x"$enable_gdbmi" = xyes; then
 176   if test -d $srcdir/mi; then
 177     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
 178     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
 179     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
 180     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
 181   fi
 182 fi
 183
 184 # Enable TUI.
 185 AC_ARG_ENABLE(tui,
 186 [  --enable-tui            enable full-screen terminal user interface (TUI)],
 187   [case $enableval in
 188     yes | no)
 189       ;;
 190     *)
 191       AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
 192   esac],enable_tui=yes)
 193
 194 # Enable gdbtk.
 195 AC_ARG_ENABLE(gdbtk,
 196 [  --enable-gdbtk          enable gdbtk graphical user interface (GUI)],
 197   [case $enableval in
 198     yes | no)
 199       ;;
 200     *)
 201       AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
 202   esac],
 203   [if test -d $srcdir/gdbtk -a -d $srcdir/../itcl; then
 204     enable_gdbtk=yes
 205   else
 206     enable_gdbtk=no
 207   fi])
 208 # We unconditionally disable gdbtk tests on selected platforms.
 209 case $host_os in
 210   go32* | windows*)
 211     AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
 212     enable_gdbtk=no ;;
 213 esac
 214
 215 # Libunwind support.
 216 AC_ARG_WITH(libunwind,
 217 [  --with-libunwind            Use libunwind frame unwinding support],
 218 [case "${withval}" in
 219   yes)  enable_libunwind=yes ;;
 220   no)   enable_libunwind=no ;;
 221   *)    AC_MSG_ERROR(bad value ${withval} for GDB with-libunwind option) ;;
 222 esac],[
 223   AC_CHECK_HEADERS(libunwind.h)
 224   AC_CHECK_HEADERS(libunwind-ia64.h)
 225   if test x"$ac_cv_header_libunwind_h" = xyes -a x"$ac_cv_header_libunwind_ia64_h" = xyes; then
 226     enable_libunwind=yes;
 227   fi
 228 ])
 229
 230 if test x"$enable_libunwind" = xyes; then
 231   AC_CHECK_HEADERS(libunwind.h)
 232   AC_CHECK_HEADERS(libunwind-ia64.h)
 233   AC_DEFINE(HAVE_LIBUNWIND, 1, [Define if libunwind library is being used.])
 234   CONFIG_OBS="$CONFIG_OBS libunwind-frame.o"
 235   CONFIG_DEPS="$CONFIG_DEPS libunwind-frame.o"
 236   CONFIG_SRCS="$CONFIG_SRCS libunwind-frame.c"
 237 fi
 238
 239 # Profiling support.
 240 AC_ARG_ENABLE(profiling,
 241 [  --enable-profiling      enable profiling of GDB],
 242   [case $enableval in
 243     yes | no)
 244       ;;
 245     *)
 246       AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
 247   esac],
 248  [enable_profiling=no])
 249
 250 AC_CHECK_FUNCS(monstartup _mcleanup)
 251 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
 252 [AC_TRY_LINK(
 253 [#include <stdlib.h>
 254 extern char _etext;
 255 ],
 256 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
 257 if test $ac_cv_var__etext = yes; then
 258   AC_DEFINE(HAVE__ETEXT, 1,
 259             [Define to 1 if your system has the _etext variable. ])
 260 fi
 261 if test "$enable_profiling" = yes ; then
 262   if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
 263     AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
 264   fi
 265   PROFILE_CFLAGS=-pg
 266   OLD_CFLAGS="$CFLAGS"
 267   CFLAGS="$CFLAGS $PROFILE_CFLAGS"
 268
 269   AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
 270     [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
 271      ac_cv_cc_supports_pg=no)])
 272
 273   if test $ac_cv_cc_supports_pg = no; then
 274     AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
 275   fi
 276
 277   CFLAGS="$OLD_CFLAGS"
 278 fi
 279
 280 # --------------------- #
 281 # Checks for programs.  #
 282 # --------------------- #
 283
 284 AC_PROG_AWK
 285 AC_PROG_INSTALL
 286 AC_PROG_LN_S
 287 AC_PROG_RANLIB
 288 AC_PROG_YACC
 289
 290 AC_CHECK_TOOL(AR, ar)
 291 AC_CHECK_TOOL(DLLTOOL, dlltool)
 292 AC_CHECK_TOOL(WINDRES, windres)
 293
 294 # Needed for GNU/Hurd.
 295 AC_CHECK_TOOL(MIG, mig)
 296
 297 # ---------------------- #
 298 # Checks for libraries.  #
 299 # ---------------------- #
 300
 301 # We might need to link with -lm; most simulators need it.
 302 AC_CHECK_LIB(m, main)
 303
 304 # We need to link with -lw to get `wctype' on Solaris before Solaris
 305 # 2.6.  Solaris 2.6 and beyond have this function in libc, and have a
 306 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
 307 # is known to have this problem).  Therefore we avoid libw if we can.
 308 AC_CHECK_FUNC(wctype, [],
 309   [AC_CHECK_LIB(w, wctype)])
 310
 311 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 312 AC_SEARCH_LIBS(gethostbyname, nsl)
 313
 314 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 315 AC_SEARCH_LIBS(socketpair, socket)
 316
 317 # For the TUI, we need enhanced curses functionality.
 318 #
 319 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
 320 # curses library because the latter might not provide all the
 321 # functionality we need.  However, this leads to problems on systems
 322 # where the linker searches /usr/local/lib, but the compiler doesn't
 323 # search /usr/local/include, if ncurses is installed in /usr/local.  A
 324 # default installation of ncurses on alpha*-dec-osf* will lead to such
 325 # a situation.
 326 AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
 327
 328 # Since GDB uses Readline, we need termcap functionality.  In many
 329 # cases this will be provided by the curses library, but some systems
 330 # have a seperate termcap library, or no curses library at all.
 331
 332 case $host_os in
 333   cygwin*)
 334     if test -d $srcdir/libtermcap; then
 335       LIBS="../libtermcap/libtermcap.a $LIBS"
 336       ac_cv_search_tgetent="../libtermcap/libtermcap.a"
 337     fi ;;
 338   go32* | *djgpp*)
 339     ac_cv_search_tgetent="none required"
 340     ;;
 341   *mingw32*)
 342     ac_cv_search_tgetent="none required"
 343     CONFIG_OBS="$CONFIG_OBS win32-termcap.o"
 344     ;;
 345 esac
 346
 347 # These are the libraries checked by Readline.
 348 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
 349
 350 if test "$ac_cv_search_tgetent" = no; then
 351   AC_MSG_ERROR([no termcap library found])
 352 fi
 353
 354 # ------------------------- #
 355 # Checks for header files.  #
 356 # ------------------------- #
 357
 358 AC_HEADER_DIRENT
 359 AC_HEADER_STAT
 360 AC_HEADER_STDC
 361 AC_CHECK_HEADERS(nlist.h)
 362 AC_CHECK_HEADERS(link.h, [], [],
 363 [#if HAVE_SYS_TYPES_H
 364 # include <sys/types.h>
 365 #endif
 366 #if HAVE_NLIST_H
 367 # include <nlist.h>
 368 #endif
 369 ])
 370 AC_CHECK_HEADERS(machine/reg.h)
 371 AC_CHECK_HEADERS(poll.h sys/poll.h)
 372 AC_CHECK_HEADERS(proc_service.h thread_db.h gnu/libc-version.h)
 373 AC_CHECK_HEADERS(stddef.h)
 374 AC_CHECK_HEADERS(stdlib.h)
 375 AC_CHECK_HEADERS(stdint.h)
 376 AC_CHECK_HEADERS(string.h memory.h strings.h)
 377 AC_CHECK_HEADERS(sys/fault.h)
 378 AC_CHECK_HEADERS(sys/file.h)
 379 AC_CHECK_HEADERS(sys/filio.h)
 380 AC_CHECK_HEADERS(sys/ioctl.h)
 381 AC_CHECK_HEADERS(sys/param.h)
 382 AC_CHECK_HEADERS(sys/proc.h, [], [],
 383 [#if HAVE_SYS_PARAM_H
 384 # include <sys/param.h>
 385 #endif
 386 ])
 387 AC_CHECK_HEADERS(sys/procfs.h)
 388 AC_CHECK_HEADERS(sys/ptrace.h ptrace.h)
 389 AC_CHECK_HEADERS(sys/reg.h sys/debugreg.h)
 390 AC_CHECK_HEADERS(sys/select.h)
 391 AC_CHECK_HEADERS(sys/syscall.h)
 392 AC_CHECK_HEADERS(sys/types.h)
 393 AC_CHECK_HEADERS(sys/user.h, [], [],
 394 [#if HAVE_SYS_PARAM_H
 395 # include <sys/param.h>
 396 #endif
 397 ])
 398 AC_CHECK_HEADERS(sys/wait.h wait.h)
 399 AC_CHECK_HEADERS(termios.h termio.h sgtty.h)
 400 AC_CHECK_HEADERS(unistd.h)
 401
 402 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
 403 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
 404 # think that we don't have <curses.h> if we're using GCC.
 405 case $host_os in
 406   solaris2.[[789]])
 407     if test "$GCC" = yes; then
 408       AC_DEFINE(_MSE_INT_H, 1,
 409         [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
 410    Solaris 2.[789] when using GCC. ])
 411     fi ;;
 412 esac
 413 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h)
 414 AC_CHECK_HEADERS(ncurses/term.h)
 415 AC_CHECK_HEADERS(term.h, [], [],
 416 [#if HAVE_CURSES_H
 417 # include <curses.h>
 418 #endif
 419 ])
 420
 421 # FIXME: kettenis/20030102: In most cases we include these
 422 # unconditionally, so what's the point in checking these?
 423 AC_CHECK_HEADERS(ctype.h time.h)
 424
 425 # ------------------------- #
 426 # Checks for declarations.  #
 427 # ------------------------- #
 428
 429 AC_CHECK_DECLS([free, malloc, realloc])
 430 AC_CHECK_DECLS([strerror, strstr])
 431 AC_CHECK_DECLS([getopt, snprintf, vsnprintf])
 432
 433 # ----------------------- #
 434 # Checks for structures.  #
 435 # ----------------------- #
 436
 437 AC_CHECK_MEMBERS([struct stat.st_blocks])
 438 AC_CHECK_MEMBERS([struct stat.st_blksize])
 439
 440 # ------------------ #
 441 # Checks for types.  #
 442 # ------------------ #
 443
 444 AC_TYPE_SIGNAL
 445 AC_CHECK_TYPES(socklen_t, [], [],
 446 [#include <sys/types.h>
 447 #include <sys/socket.h>
 448 ])
 449 AC_CHECK_TYPES(uintptr_t, [], [], [#include <stdint.h>])
 450
 451 # ------------------------------------- #
 452 # Checks for compiler characteristics.  #
 453 # ------------------------------------- #
 454
 455 AC_C_CONST
 456 AC_C_INLINE
 457
 458 # ------------------------------ #
 459 # Checks for library functions.  #
 460 # ------------------------------ #
 461
 462 AC_FUNC_ALLOCA
 463 AC_FUNC_MMAP
 464 AC_FUNC_VFORK
 465 AC_CHECK_FUNCS(canonicalize_file_name realpath)
 466 AC_CHECK_FUNCS(getuid getgid)
 467 AC_CHECK_FUNCS(poll)
 468 AC_CHECK_FUNCS(pread64)
 469 AC_CHECK_FUNCS(sbrk)
 470 AC_CHECK_FUNCS(setpgid setpgrp)
 471 AC_CHECK_FUNCS(sigaction sigprocmask sigsetmask)
 472 AC_CHECK_FUNCS(socketpair)
 473 AC_CHECK_FUNCS(syscall)
 474 AC_CHECK_FUNCS(ttrace)
 475 AC_CHECK_FUNCS(wborder)
 476
 477 # Check the return and argument types of ptrace.  No canned test for
 478 # this, so roll our own.
 479 gdb_ptrace_headers='
 480 #if HAVE_SYS_TYPES_H
 481 # include <sys/types.h>
 482 #endif
 483 #if HAVE_SYS_PTRACE_H
 484 # include <sys/ptrace.h>
 485 #endif
 486 #if HAVE_UNISTD_H
 487 # include <unistd.h>
 488 #endif
 489 '
 490 # There is no point in checking if we don't have a prototype.
 491 AC_CHECK_DECLS(ptrace, [], [
 492   : ${gdb_cv_func_ptrace_ret='int'}
 493   : ${gdb_cv_func_ptrace_args='int,int,long,long'}
 494 ], $gdb_ptrace_headers)
 495 # Check return type.
 496 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
 497   AC_TRY_COMPILE($gdb_ptrace_headers,
 498     [extern int ptrace ();],
 499     gdb_cv_func_ptrace_ret='int',
 500     gdb_cv_func_ptrace_ret='long'))
 501 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
 502   [Define as the return type of ptrace.])
 503 # Check argument types.
 504 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
 505 for gdb_arg1 in 'int' 'long'; do
 506  for gdb_arg2 in 'pid_t' 'int' 'long'; do
 507   for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long'; do
 508    for gdb_arg4 in 'int' 'long'; do
 509      AC_TRY_COMPILE($gdb_ptrace_headers, [
 510 extern $gdb_cv_func_ptrace_ret
 511   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
 512 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
 513     break 4;])
 514     for gdb_arg5 in 'int *' 'int' 'long'; do
 515      AC_TRY_COMPILE($gdb_ptrace_headers, [
 516 extern $gdb_cv_func_ptrace_ret
 517   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
 518 ], [
 519 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
 520     break 5;])
 521     done
 522    done
 523   done
 524  done
 525 done
 526 # Provide a safe default value.
 527 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
 528 ])
 529 ac_save_IFS=$IFS; IFS=','
 530 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
 531 IFS=$ac_save_IFS
 532 shift
 533 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
 534   [Define to the type of arg 3 for ptrace.])
 535 if test -n "$[5]"; then
 536   AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
 537     [Define to the type of arg 5 for ptrace.])
 538 fi
 539
 540 dnl AC_FUNC_SETPGRP does not work when cross compiling
 541 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
 542 if test "$cross_compiling" = no; then
 543   AC_FUNC_SETPGRP
 544 else
 545   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
 546     [AC_TRY_COMPILE([
 547 #include <unistd.h>
 548 ], [
 549   if (setpgrp(1,1) == -1)
 550     exit (0);
 551   else
 552     exit (1);
 553 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
 554 if test $ac_cv_func_setpgrp_void = yes; then
 555   AC_DEFINE(SETPGRP_VOID, 1)
 556 fi
 557 fi
 558
 559 # Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do
 560 # since sigsetjmp might only be defined as a macro.
 561 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
 562 [AC_TRY_COMPILE([
 563 #include <setjmp.h>
 564 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
 565 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
 566 if test $gdb_cv_func_sigsetjmp = yes; then
 567   AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
 568 fi
 569
 570 # Assume we'll default to using the included libiberty regex.
 571 gdb_use_included_regex=yes
 572
 573 # However, if the system regex is GNU regex, then default to *not*
 574 # using the included regex.
 575 AC_CACHE_CHECK(
 576   [for GNU regex],
 577   [gdb_cv_have_gnu_regex],
 578   [AC_TRY_COMPILE(
 579     [#include <gnu-versions.h>],
 580     [#define REGEX_INTERFACE_VERSION 1
 581 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
 582 # error "Version mismatch"
 583 #endif],
 584     gdb_cv_have_gnu_regex=yes,
 585     gdb_cv_have_gnu_regex=no)])
 586 if test $gdb_cv_have_gnu_regex = yes; then
 587   gdb_use_included_regex=no
 588 fi
 589
 590 AC_ARG_WITH(included-regex,
 591   [  --without-included-regex don't use included regex; this is the default
 592                           on systems with version 2 of the GNU C library
 593                           (use with caution on other system)],
 594   gdb_with_regex=$withval,
 595   gdb_with_regex=$gdb_use_included_regex)
 596 if test "$gdb_with_regex" = yes; then
 597   AC_DEFINE(USE_INCLUDED_REGEX, 1,
 598     [Define to 1 if the regex included in libiberty should be used.])
 599 fi
 600
 601 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
 602 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
 603 [#include <sys/param.h>
 604 #include <sys/proc.h>
 605 ])
 606
 607 # See if <sys/lwp.h> defines `struct lwp`.
 608 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
 609 [AC_TRY_COMPILE([#include <sys/param.h>
 610 #include <sys/lwp.h>], [struct lwp l;],
 611 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
 612 if test $gdb_cv_struct_lwp = yes; then
 613   AC_DEFINE(HAVE_STRUCT_LWP, 1,
 614             [Define to 1 if your system has struct lwp.])
 615 fi
 616
 617 # See if <machine/reg.h> degines `struct reg'.
 618 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
 619 [AC_TRY_COMPILE([#include <sys/types.h>
 620 #include <machine/reg.h>], [struct reg r;],
 621 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
 622 if test $gdb_cv_struct_reg = yes; then
 623   AC_DEFINE(HAVE_STRUCT_REG, 1,
 624             [Define to 1 if your system has struct reg in <machine/reg.h>.])
 625 fi
 626
 627 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
 628 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
 629 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
 630                  [#include <machine/reg.h>])
 631
 632 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
 633 AC_MSG_CHECKING(for PTRACE_GETREGS)
 634 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
 635 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
 636                 [PTRACE_GETREGS;],
 637                 [gdb_cv_have_ptrace_getregs=yes],
 638                 [gdb_cv_have_ptrace_getregs=no])])
 639 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
 640 if test $gdb_cv_have_ptrace_getregs = yes; then
 641   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
 642   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
 643 fi
 644
 645 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
 646 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
 647 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
 648 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
 649                 [PTRACE_GETFPXREGS;],
 650                 [gdb_cv_have_ptrace_getfpxregs=yes],
 651                 [gdb_cv_have_ptrace_getfpxregs=no])])
 652 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
 653 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
 654   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
 655   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
 656 fi
 657
 658 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
 659 AC_MSG_CHECKING(for PT_GETDBREGS)
 660 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
 661 [AC_TRY_COMPILE([#include <sys/types.h>
 662 #include <sys/ptrace.h>],
 663                 [PT_GETDBREGS;],
 664                 [gdb_cv_have_pt_getdbregs=yes],
 665                 [gdb_cv_have_pt_getdbregs=no])])
 666 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
 667 if test $gdb_cv_have_pt_getdbregs = yes; then
 668   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
 669   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
 670 fi
 671
 672 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
 673 AC_MSG_CHECKING(for PT_GETXMMREGS)
 674 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
 675 [AC_TRY_COMPILE([#include <sys/types.h>
 676 #include <sys/ptrace.h>],
 677                 [PT_GETXMMREGS;],
 678                 [gdb_cv_have_pt_getxmmregs=yes],
 679                 [gdb_cv_have_pt_getxmmregs=no])])
 680 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
 681 if test $gdb_cv_have_pt_getxmmregs = yes; then
 682   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
 683   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
 684 fi
 685
 686 # If we are configured native on GNU/Linux, work around problems with
 687 # sys/procfs.h
 688 # Also detect which type of /proc is in use, such as for Unixware or Solaris.
 689
 690 if test "${target}" = "${host}"; then
 691   case "${host}" in
 692   i[[3456]]86-*-linux*)
 693         AC_DEFINE(START_INFERIOR_TRAPS_EXPECTED, 2,
 694         [Define on a GNU/Linux system to work around problems in sys/procfs.h.])
 695         AC_DEFINE(sys_quotactl, 1,
 696         [Define on a GNU/Linux system to work around problems in sys/procfs.h.])
 697         ;;
 698   *-*-unixware* | *-*-sysv4.2* | *-*-sysv5* | *-*-interix* )
 699       AC_DEFINE(NEW_PROC_API, 1,
 700       [Define if you want to use new multi-fd /proc interface
 701        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
 702       ;;
 703   *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]])
 704       AC_DEFINE(NEW_PROC_API, 1,
 705       [Define if you want to use new multi-fd /proc interface
 706        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
 707       ;;
 708   mips-sgi-irix5*)
 709       # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
 710       AC_DEFINE([_KMEMUSER], 1,
 711       [Define to 1 so <sys/proc.h> gets a definition of anon_hdl.  Works
 712        around a <sys/proc.h> problem on IRIX 5.])
 713       ;;
 714   esac
 715 fi
 716
 717 if test "$ac_cv_header_sys_procfs_h" = yes; then
 718   BFD_HAVE_SYS_PROCFS_TYPE(pstatus_t)
 719   BFD_HAVE_SYS_PROCFS_TYPE(prrun_t)
 720   BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
 721   BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
 722   BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
 723   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
 724   BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
 725   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset32_t)
 726   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
 727   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
 728   BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
 729   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
 730   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
 731   BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
 732
 733
 734   dnl Check for broken prfpregset_t type
 735
 736   dnl For Linux/i386, glibc 2.1.3 was released with a bogus
 737   dnl prfpregset_t type (it's a typedef for the pointer to a struct
 738   dnl instead of the struct itself).  We detect this here, and work
 739   dnl around it in gdb_proc_service.h.
 740
 741   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
 742     AC_MSG_CHECKING(whether prfpregset_t type is broken)
 743     AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
 744       [AC_TRY_RUN([#include <sys/procfs.h>
 745        int main ()
 746        {
 747          if (sizeof (prfpregset_t) == sizeof (void *))
 748            return 1;
 749          return 0;
 750        }],
 751        gdb_cv_prfpregset_t_broken=no,
 752        gdb_cv_prfpregset_t_broken=yes,
 753        gdb_cv_prfpregset_t_broken=yes)])
 754     AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
 755     if test $gdb_cv_prfpregset_t_broken = yes; then
 756       AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
 757       [Define if the prfpregset_t type is broken.])
 758     fi
 759   fi
 760
 761   dnl Check for PIOCSET ioctl entry
 762
 763   AC_MSG_CHECKING(for PIOCSET ioctl entry in sys/procfs.h)
 764   AC_CACHE_VAL(gdb_cv_have_procfs_piocset,
 765   [AC_TRY_COMPILE([#include <unistd.h>
 766 #include <sys/types.h>
 767 #include <sys/procfs.h>
 768 ], [
 769     int dummy;;
 770     dummy = ioctl(0, PIOCSET, &dummy);
 771   ],
 772   gdb_cv_have_procfs_piocset=yes, gdb_cv_have_procfs_piocset=no)])
 773   AC_MSG_RESULT($gdb_cv_have_procfs_piocset)
 774   if test $gdb_cv_have_procfs_piocset = yes; then
 775     AC_DEFINE(HAVE_PROCFS_PIOCSET, 1,
 776     [Define if ioctl argument PIOCSET is available.])
 777   fi
 778 fi
 779
 780 dnl For native ports (host == target), check to see what kind of
 781 dnl legacy link.h support is needed.  (See solib-legacy.c.)
 782 if test ${host} = ${target} ; then
 783   dnl Check for struct link_map with l_ members which are indicative
 784   dnl of SVR4-like shared libraries
 785
 786   AC_MSG_CHECKING(for member l_addr in struct link_map)
 787   AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_l_members,
 788     [AC_TRY_COMPILE([#include <link.h>],
 789                     [struct link_map lm; (void) lm.l_addr;],
 790                     gdb_cv_have_struct_link_map_with_l_members=yes,
 791                     gdb_cv_have_struct_link_map_with_l_members=no)])
 792   AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_l_members)
 793   if test $gdb_cv_have_struct_link_map_with_l_members = yes; then
 794     AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS,1,
 795     [Define if <link.h> exists and defines struct link_map which has
 796      members with an ``l_'' prefix.  (For Solaris, SVR4, and
 797      SVR4-like systems.)])
 798   fi
 799
 800   dnl Check for struct link_map with lm_ members which are indicative
 801   dnl of SunOS-like shared libraries
 802
 803   AC_MSG_CHECKING(for member lm_addr in struct link_map)
 804   AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_lm_members,
 805     [AC_TRY_COMPILE([#include <sys/types.h>
 806 #include <link.h>],
 807                     [struct link_map lm; (void) lm.lm_addr;],
 808                     gdb_cv_have_struct_link_map_with_lm_members=yes,
 809                     gdb_cv_have_struct_link_map_with_lm_members=no)])
 810   AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_lm_members)
 811   if test $gdb_cv_have_struct_link_map_with_lm_members = yes; then
 812     AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS, 1,
 813     [Define if <link.h> exists and defines struct link_map which has
 814      members with an ``lm_'' prefix.  (For SunOS.)])
 815   fi
 816
 817   dnl Check for struct so_map with som_ members which are found on
 818   dnl some *BSD systems.
 819
 820   AC_MSG_CHECKING(for member som_addr in struct so_map)
 821   AC_CACHE_VAL(gdb_cv_have_struct_so_map_with_som_members,
 822     [AC_TRY_COMPILE([#include <sys/types.h>
 823 #ifdef HAVE_NLIST_H
 824 #include <nlist.h>
 825 #endif
 826 #include <link.h>],
 827                     [struct so_map lm; (void) lm.som_addr;],
 828                     gdb_cv_have_struct_so_map_with_som_members=yes,
 829                     gdb_cv_have_struct_so_map_with_som_members=no)])
 830   AC_MSG_RESULT($gdb_cv_have_struct_so_map_with_som_members)
 831   if test $gdb_cv_have_struct_so_map_with_som_members = yes; then
 832     AC_DEFINE(HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS, 1,
 833     [Define if <link.h> exists and defines a struct so_map which has
 834      members with an ``som_'' prefix.  (Found on older *BSD systems.)])
 835   fi
 836
 837   dnl Check for struct link_map32 type, which allows a 64-bit Solaris
 838   dnl debugger to debug a 32-bit Solaris app with 32-bit shared libraries.
 839
 840   AC_MSG_CHECKING(for struct link_map32 in sys/link.h)
 841   AC_CACHE_VAL(gdb_cv_have_struct_link_map32,
 842     [AC_TRY_COMPILE([#define _SYSCALL32
 843 #include <sys/link.h>], [struct link_map32 l;],
 844      gdb_cv_have_struct_link_map32=yes,
 845      gdb_cv_have_struct_link_map32=no)])
 846   AC_MSG_RESULT($gdb_cv_have_struct_link_map32)
 847   if test $gdb_cv_have_struct_link_map32 = yes; then
 848     AC_DEFINE(HAVE_STRUCT_LINK_MAP32, 1,
 849     [Define if <sys/link.h> has struct link_map32])
 850     AC_DEFINE(_SYSCALL32, 1,
 851     [Define if <sys/link.h> has link_map32 (solaris sparc-64 target)])
 852   fi
 853 fi
 854
 855 # Check if the compiler supports the `long long' type.
 856
 857 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
 858                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
 859 [[extern long long foo;]],
 860 [[switch (foo & 2) { case 0: return 1; }]])],
 861                                   gdb_cv_c_long_long=yes,
 862                                   gdb_cv_c_long_long=no)])
 863 if test $gdb_cv_c_long_long = yes; then
 864   AC_DEFINE(CC_HAS_LONG_LONG, 1,
 865             [Define to 1 if the compiler supports long long.])
 866 fi
 867
 868 # Check if the compiler and runtime support printing long longs.
 869
 870 AC_CACHE_CHECK([for long long support in printf],
 871                gdb_cv_printf_has_long_long,
 872                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
 873 [[char buf[32];
 874   long long l = 0;
 875   l = (l << 16) + 0x0123;
 876   l = (l << 16) + 0x4567;
 877   l = (l << 16) + 0x89ab;
 878   l = (l << 16) + 0xcdef;
 879   sprintf (buf, "0x%016llx", l);
 880   return (strcmp ("0x0123456789abcdef", buf));]])],
 881                               gdb_cv_printf_has_long_long=yes,
 882                               gdb_cv_printf_has_long_long=no,
 883                               gdb_cv_printf_has_long_long=no)])
 884 if test $gdb_cv_printf_has_long_long = yes; then
 885   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
 886             [Define to 1 if the "%ll" format works to print long longs.])
 887 fi
 888
 889 # Check if the compiler supports the `long double' type.  We can't use
 890 # AC_C_LONG_DOUBLE because that one does additional checks on the
 891 # constants defined in <float.h> that fail on some systems,
 892 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
 893
 894 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
 895                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
 896                                   gdb_cv_c_long_double=yes,
 897                                   gdb_cv_c_long_double=no)])
 898 if test $gdb_cv_c_long_double = yes; then
 899   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
 900            [Define to 1 if the compiler supports long double.])
 901 fi
 902
 903 # Check if the compiler and runtime support printing long doubles.
 904
 905 AC_CACHE_CHECK([for long double support in printf],
 906                gdb_cv_printf_has_long_double,
 907                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
 908 [[char buf[16];
 909   long double f = 3.141592653;
 910   sprintf (buf, "%Lg", f);
 911   return (strncmp ("3.14159", buf, 7));]])],
 912                               gdb_cv_printf_has_long_double=yes,
 913                               gdb_cv_printf_has_long_double=no,
 914                               gdb_cv_printf_has_long_double=no)])
 915 if test $gdb_cv_printf_has_long_double = yes; then
 916   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
 917             [Define to 1 if the "%Lg" format works to print long doubles.])
 918 fi
 919
 920 # Check if the compiler and runtime support scanning long doubles.
 921
 922 AC_CACHE_CHECK([for long double support in scanf],
 923                gdb_cv_scanf_has_long_double,
 924                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
 925 [[#include <stdio.h>]],
 926 [[char *buf = "3.141592653";
 927   long double f = 0;
 928   sscanf (buf, "%Lg", &f);
 929   return !(f > 3.14159 && f < 3.14160);]])],
 930                               gdb_cv_scanf_has_long_double=yes,
 931                               gdb_cv_scanf_has_long_double=no,
 932                               gdb_cv_scanf_has_long_double=no)])
 933 if test $gdb_cv_scanf_has_long_double = yes; then
 934   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
 935             [Define to 1 if the "%Lg" format works to scan long doubles.])
 936 fi
 937
 938 case ${host_os} in
 939 aix*)
 940   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
 941     SAVE_LDFLAGS=$LDFLAGS
 942
 943     case $GCC in
 944     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
 945     *) gdb_cv_bigtoc=-bbigtoc ;;
 946     esac
 947
 948     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
 949     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
 950     LDFLAGS="${SAVE_LDFLAGS}"
 951   ])
 952   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
 953   ;;
 954 esac
 955
 956
 957 dnl For certain native configurations, we need to check whether thread
 958 dnl support can be built in or not.
 959 dnl
 960 dnl Note that we only want this if we are both native (host == target),
 961 dnl and not doing a canadian cross build (build == host).
 962
 963 if test ${build} = ${host} -a ${host} = ${target} ; then
 964    case ${host_os} in
 965    hpux*)
 966       AC_MSG_CHECKING(for HPUX/OSF thread support)
 967       if test -f /usr/include/dce/cma_config.h ; then
 968          if test "$GCC" = "yes" ; then
 969             AC_MSG_RESULT(yes)
 970             AC_DEFINE(HAVE_HPUX_THREAD_SUPPORT, 1,
 971             [Define if you have HPUX threads])
 972             CONFIG_OBS="${CONFIG_OBS} hpux-thread.o"
 973             CONFIG_SRCS="${CONFIG_SRCS} hpux-thread.c"
 974          else
 975             AC_MSG_RESULT(no (suppressed because you are not using GCC))
 976          fi
 977       else
 978          AC_MSG_RESULT(no)
 979       fi
 980       ;;
 981    solaris*)
 982       # See if thread_db library is around for Solaris thread debugging.
 983       # Note that we must explicitly test for version 1 of the library
 984       # because version 0 (present on Solaris 2.4 or earlier) doesn't have
 985       # the same API.
 986       AC_MSG_CHECKING(for Solaris thread debugging library)
 987       if test -f /usr/lib/libthread_db.so.1 ; then
 988          AC_MSG_RESULT(yes)
 989          AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
 990          [Define if using Solaris thread debugging.])
 991          CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
 992          CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
 993          AC_CHECK_LIB(dl, dlopen)
 994          if test "$GCC" = "yes" ; then
 995             # The GNU linker requires the -export-dynamic option to make
 996             # all symbols visible in the dynamic symbol table.
 997             hold_ldflags=$LDFLAGS
 998             AC_MSG_CHECKING(for the ld -export-dynamic flag)
 999             LDFLAGS="${LDFLAGS} -Wl,-export-dynamic"
1000             AC_TRY_LINK(, [int i;], found=yes, found=no)
1001             LDFLAGS=$hold_ldflags
1002             AC_MSG_RESULT($found)
1003             if test $found = yes; then
1004                CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -Wl,-export-dynamic"
1005             fi
1006          fi
1007          # Sun randomly tweaked the prototypes in <proc_service.h>
1008          # at one point.
1009          AC_MSG_CHECKING(if <proc_service.h> is old)
1010          AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1011             AC_TRY_COMPILE([
1012                 #include <proc_service.h>
1013                 ps_err_e ps_pdwrite
1014                     (struct ps_prochandle*, psaddr_t, const void*, size_t);
1015             ],, gdb_cv_proc_service_is_old=no,
1016                 gdb_cv_proc_service_is_old=yes)
1017          ])
1018          AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1019          if test $gdb_cv_proc_service_is_old = yes; then
1020             AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1021             [Define if <proc_service.h> on solaris uses int instead of
1022              size_t, and assorted other type changes.])
1023          fi
1024       else
1025          AC_MSG_RESULT(no)
1026       fi
1027       ;;
1028    aix*)
1029       AC_MSG_CHECKING(for AiX thread debugging library)
1030       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1031                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1032                                    [#ifndef PTHDB_VERSION_3
1033                                     #error
1034                                     #endif],
1035                                    gdb_cv_have_aix_thread_debug=yes,
1036                                    gdb_cv_have_aix_thread_debug=no)])
1037       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1038       if test $gdb_cv_have_aix_thread_debug = yes; then
1039          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1040          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1041          CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -lpthdebug"
1042       fi
1043       ;;
1044    esac
1045    AC_SUBST(CONFIG_LDFLAGS)
1046 fi
1047
1048 dnl See if we have a thread_db header file that has TD_NOTALLOC.
1049 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1050    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1051                   gdb_cv_thread_db_h_has_td_notalloc,
1052      AC_TRY_COMPILE(
1053        [#include <thread_db.h>],
1054        [int i = TD_NOTALLOC;],
1055        gdb_cv_thread_db_h_has_td_notalloc=yes,
1056        gdb_cv_thread_db_h_has_td_notalloc=no
1057      )
1058    )
1059 fi
1060 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1061   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1062             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1063 fi
1064
1065 dnl See if we have a sys/syscall header file that has __NR_tkill.
1066 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1067    AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1068                   gdb_cv_sys_syscall_h_has_tkill,
1069      AC_TRY_COMPILE(
1070        [#include <sys/syscall.h>],
1071        [int i = __NR_tkill;],
1072        gdb_cv_sys_syscall_h_has_tkill=yes,
1073        gdb_cv_sys_syscall_h_has_tkill=no
1074      )
1075    )
1076 fi
1077 dnl See if we can issue tkill syscall.
1078 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then
1079   AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1080 fi
1081
1082 dnl Handle optional features that can be enabled.
1083
1084 AC_ARG_WITH(sysroot,
1085 [  --with-sysroot[=DIR] Search for usr/lib et al within DIR.],
1086 [
1087  case ${with_sysroot} in
1088  yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
1089  *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
1090  esac
1091
1092  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
1093
1094  if test "x$exec_prefix" = xNONE; then
1095   if test "x$prefix" = xNONE; then
1096    test_prefix=/usr/local
1097   else
1098    test_prefix=$prefix
1099   fi
1100  else
1101   test_prefix=$exec_prefix
1102  fi
1103  case ${TARGET_SYSTEM_ROOT} in
1104  "${test_prefix}"|"${test_prefix}/"*|\
1105  '${exec_prefix}'|'${exec_prefix}/'*)
1106    t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
1107    TARGET_SYSTEM_ROOT_DEFINE="$t"
1108    ;;
1109  esac
1110 ], [
1111  TARGET_SYSTEM_ROOT=
1112  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
1113 ])
1114 AC_SUBST(TARGET_SYSTEM_ROOT)
1115 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
1116
1117 AC_ARG_ENABLE(werror,
1118   [  --enable-werror    treat compile warnings as errors],
1119   [case "${enableval}" in
1120      yes | y) ERROR_ON_WARNING="yes" ;;
1121      no | n)  ERROR_ON_WARNING="no" ;;
1122      *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1123    esac])
1124
1125 # Enable -Werror by default when using gcc
1126 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
1127     ERROR_ON_WARNING=yes
1128 fi
1129
1130 WERROR_CFLAGS=""
1131 if test "${ERROR_ON_WARNING}" = yes ; then
1132     WERROR_CFLAGS="-Werror"
1133 fi
1134
1135 # NOTE: Don't add -Wall or -Wunused, they both include
1136 # -Wunused-parameter which reports bogus warnings.
1137 # NOTE: If you add to this list, remember to update
1138 # gdb/doc/gdbint.texinfo.
1139 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
1140 -Wformat -Wparentheses -Wpointer-arith -Wformat-nonliteral \
1141 -Wunused-label -Wunused-function -Wno-pointer-sign"
1142
1143 # GCC supports -Wuninitialized only with -O or -On, n != 0.
1144 if test x${CFLAGS+set} = xset; then
1145   case "${CFLAGS}" in
1146     *"-O0"* ) ;;
1147     *"-O"* )
1148       build_warnings="${build_warnings} -Wuninitialized"
1149     ;;
1150   esac
1151 else
1152   build_warnings="${build_warnings} -Wuninitialized"
1153 fi
1154
1155 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
1156 # -Wunused-function -Wunused-variable -Wunused-value
1157 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
1158 # -Wcast-align -Wwrite-strings -Wconversion -Wstrict-prototypes
1159 # -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls
1160 # -Woverloaded-virtual -Winline -Werror"
1161 AC_ARG_ENABLE(build-warnings,
1162 [  --enable-build-warnings Enable build-time compiler warnings if gcc is used],
1163 [case "${enableval}" in
1164   yes)  ;;
1165   no)   build_warnings="-w";;
1166   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1167         build_warnings="${build_warnings} ${t}";;
1168   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1169         build_warnings="${t} ${build_warnings}";;
1170   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1171 esac
1172 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1173   echo "Setting compiler warning flags = $build_warnings" 6>&1
1174 fi])dnl
1175 AC_ARG_ENABLE(gdb-build-warnings,
1176 [  --enable-gdb-build-warnings Enable GDB specific build-time compiler warnings if gcc is used],
1177 [case "${enableval}" in
1178   yes)  ;;
1179   no)   build_warnings="-w";;
1180   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1181         build_warnings="${build_warnings} ${t}";;
1182   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1183         build_warnings="${t} ${build_warnings}";;
1184   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1185 esac
1186 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1187   echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
1188 fi])dnl
1189 WARN_CFLAGS=""
1190 if test "x${build_warnings}" != x -a "x$GCC" = xyes
1191 then
1192     AC_MSG_CHECKING(compiler warning flags)
1193     # Separate out the -Werror flag as some files just cannot be
1194     # compiled with it enabled.
1195     for w in ${build_warnings}; do
1196         case $w in
1197         -Werr*) WERROR_CFLAGS=-Werror ;;
1198         *) # Check that GCC accepts it
1199             saved_CFLAGS="$CFLAGS"
1200             CFLAGS="$CFLAGS $w"
1201             AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
1202             CFLAGS="$saved_CFLAGS"
1203         esac
1204     done
1205     AC_MSG_RESULT(${WARN_CFLAGS}${WERROR_CFLAGS})
1206 fi
1207 AC_SUBST(WARN_CFLAGS)
1208 AC_SUBST(WERROR_CFLAGS)
1209
1210 # In the Cygwin environment, we need some additional flags.
1211 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1212 [AC_EGREP_CPP(lose, [
1213 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1214 lose
1215 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1216
1217
1218 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1219 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1220 case ${host} in
1221   *go32* ) SER_HARDWIRE=ser-go32.o ;;
1222   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1223   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1224 esac
1225 AC_SUBST(SER_HARDWIRE)
1226
1227 # libreadline needs libuser32.a in a cygwin environment
1228 WIN32LIBS=
1229 if test x$gdb_cv_os_cygwin = xyes; then
1230     WIN32LIBS="-luser32"
1231     case "${target}" in
1232         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1233         ;;
1234     esac
1235 fi
1236
1237 # The ser-tcp.c module requires sockets.
1238 case ${host} in
1239   *mingw32*)
1240     AC_DEFINE(USE_WIN32API, 1,
1241               [Define if we should use the Windows API, instead of the
1242                POSIX API.  On Windows, we use the Windows API when
1243                building for MinGW, but the POSIX API when building
1244                for Cygwin.])
1245     WIN32LIBS="$WIN32LIBS -lws2_32"
1246     ;;
1247 esac
1248 AC_SUBST(WIN32LIBS)
1249
1250 # Add any host-specific objects to GDB.
1251 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1252
1253 LIBGUI="../libgui/src/libgui.a"
1254 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1255 AC_SUBST(LIBGUI)
1256 AC_SUBST(GUI_CFLAGS_X)
1257
1258 WIN32LDAPP=
1259 AC_SUBST(WIN32LIBS)
1260 AC_SUBST(WIN32LDAPP)
1261
1262 case "${host}" in
1263 *-*-cygwin*)
1264     configdir="win"
1265     ;;
1266 *)
1267     configdir="unix"
1268     ;;
1269 esac
1270
1271 GDBTKLIBS=
1272 if test "${enable_gdbtk}" = "yes"; then
1273
1274     # Gdbtk must have an absolute path to srcdir in order to run
1275     # properly when not installed.
1276     here=`pwd`
1277     cd ${srcdir}
1278     GDBTK_SRC_DIR=`pwd`
1279     cd $here
1280
1281     CY_AC_PATH_TCLCONFIG
1282     if test -z "${no_tcl}"; then
1283         CY_AC_LOAD_TCLCONFIG
1284         CY_AC_PATH_TKCONFIG
1285
1286         # now look for Tcl library stuff
1287
1288         tcldir="../tcl/${configdir}/"
1289
1290         TCL_DEPS="${tcldir}${TCL_LIB_FILE}"
1291
1292         # If $no_tk is nonempty, then we can't do Tk, and there is no
1293         # point to doing Tcl.
1294         if test -z "${no_tk}"; then
1295            CY_AC_LOAD_TKCONFIG
1296            CY_AC_PATH_TCLH
1297            CY_AC_PATH_TKH
1298            CY_AC_PATH_ITCLH
1299            CY_AC_PATH_ITKH
1300
1301
1302            # now look for Tk library stuff
1303
1304            tkdir="../tk/${configdir}/"
1305
1306            TK_DEPS="${tkdir}${TK_LIB_FILE}"
1307
1308            # now look for Itcl library stuff
1309
1310            CY_AC_PATH_ITCLCONFIG
1311            if test -z "${no_itcl}"; then
1312              CY_AC_LOAD_ITCLCONFIG
1313
1314              ITCLLIB="${ITCL_BUILD_LIB_SPEC}"
1315              ITCL_DEPS="${ITCL_LIB_FULL_PATH}"
1316            fi
1317
1318
1319            # now look for Itk library stuff
1320            CY_AC_PATH_ITKCONFIG
1321            if test -z "${no_itcl}"; then
1322              CY_AC_LOAD_ITKCONFIG
1323
1324              ITKLIB="${ITK_BUILD_LIB_SPEC}"
1325              ITK_DEPS="${ITK_LIB_FULL_PATH}"
1326            fi
1327
1328            ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
1329
1330            # Include some libraries that Tcl and Tk want.
1331            TCL_LIBS='$(LIBGUI) $(ITCL) $(ITK) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
1332            # Yes, the ordering seems wrong here.  But it isn't.
1333            # TK_LIBS is the list of libraries that need to be linked
1334            # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
1335            # were in LIBS then any link tests after this point would
1336            # try to include things like `$(LIBGUI)', which wouldn't work.
1337            GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
1338
1339            CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
1340            CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
1341            CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
1342            CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
1343            CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
1344            CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
1345            CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
1346
1347            if test x$gdb_cv_os_cygwin = xyes; then
1348               WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
1349               WIN32LDAPP="-Wl,--subsystem,console"
1350               CONFIG_OBS="${CONFIG_OBS} gdbres.o"
1351            fi
1352         fi
1353     fi
1354
1355     AC_CONFIG_SUBDIRS(gdbtk)
1356 fi
1357
1358 AC_SUBST(X_CFLAGS)
1359 AC_SUBST(X_LDFLAGS)
1360 AC_SUBST(X_LIBS)
1361 AC_SUBST(TCL_DEPS)
1362 AC_SUBST(TK_DEPS)
1363 AC_SUBST(ITCLLIB)
1364 AC_SUBST(ITCL_DEPS)
1365 AC_SUBST(ITKLIB)
1366 AC_SUBST(ITK_DEPS)
1367 AC_SUBST(GDBTKLIBS)
1368 AC_SUBST(GDBTK_CFLAGS)
1369 AC_SUBST(GDBTK_SRC_DIR)
1370
1371 AC_PATH_X
1372
1373 # Check whether we should enable the TUI, but only do so if we really
1374 # can.
1375 if test x"$enable_tui" = xyes; then
1376   if test -d $srcdir/tui; then
1377     if test "$ac_cv_search_waddstr" != no; then
1378       CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
1379       CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
1380       CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
1381       CONFIG_INITS="$CONFIG_INITS \$(SUBDIR_TUI_INITS)"
1382       ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
1383       CONFIG_ALL="${CONFIG_ALL} all-tui"
1384       CONFIG_CLEAN="${CONFIG_CLEAN} clean-tui"
1385       CONFIG_INSTALL="${CONFIG_INSTALL} install-tui"
1386       CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-tui"
1387     else
1388       AC_MSG_WARN([no enhanced curses library found; disabling TUI])
1389     fi
1390   fi
1391 fi
1392
1393 # Unlike the sim directory, whether a simulator is linked is controlled by
1394 # presence of a SIM= and a SIM_OBS= definition in the target '.mt' file.
1395 # This code just checks for a few cases where we'd like to ignore those
1396 # definitions, even when they're present in the '.mt' file.  These cases
1397 # are when --disable-sim is specified, or if the simulator directory is
1398 # not part of the source tree.
1399 #
1400 AC_ARG_ENABLE(sim,
1401 [  --enable-sim            Link gdb with simulator],
1402 [echo "enable_sim = $enable_sim";
1403  echo "enableval = ${enableval}";
1404  case "${enableval}" in
1405   yes) ignore_sim=false ;;
1406   no)  ignore_sim=true ;;
1407   *)   ignore_sim=false ;;
1408  esac],
1409 [ignore_sim=false])
1410
1411 if test ! -d "${srcdir}/../sim"; then
1412   ignore_sim=true
1413 fi
1414
1415 if test "${ignore_sim}" = "true"; then
1416     IGNORE_SIM="SIM="
1417     IGNORE_SIM_OBS="SIM_OBS="
1418 else
1419     IGNORE_SIM=""
1420     IGNORE_SIM_OBS=""
1421     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
1422 fi
1423 AC_SUBST(IGNORE_SIM)
1424 AC_SUBST(IGNORE_SIM_OBS)
1425
1426 AC_SUBST(ENABLE_CFLAGS)
1427 AC_SUBST(PROFILE_CFLAGS)
1428
1429 AC_SUBST(CONFIG_OBS)
1430 AC_SUBST(CONFIG_DEPS)
1431 AC_SUBST(CONFIG_SRCS)
1432 AC_SUBST(CONFIG_ALL)
1433 AC_SUBST(CONFIG_CLEAN)
1434 AC_SUBST(CONFIG_INSTALL)
1435 AC_SUBST(CONFIG_UNINSTALL)
1436
1437 # List of host floatformats.
1438 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
1439 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
1440 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
1441
1442 # target_subdir is used by the testsuite to find the target libraries.
1443 target_subdir=
1444 if test "${host}" != "${target}"; then
1445     target_subdir="${target_alias}/"
1446 fi
1447 AC_SUBST(target_subdir)
1448
1449 frags=
1450 if test "${target}" = "${host}"; then
1451   host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
1452   if test ! -f ${host_makefile_frag}; then
1453     AC_MSG_ERROR("*** Gdb does not support native target ${host}")
1454   fi
1455   frags="$frags $host_makefile_frag"
1456 else
1457   host_makefile_frag=/dev/null
1458 fi
1459
1460 target_makefile_frag=${srcdir}/config/${gdb_target_cpu}/${gdb_target}.mt
1461 if test ! -f ${target_makefile_frag}; then
1462   AC_MSG_ERROR("*** Gdb does not support target ${target}")
1463 fi
1464 frags="$frags $target_makefile_frag"
1465
1466 AC_SUBST_FILE(host_makefile_frag)
1467 AC_SUBST_FILE(target_makefile_frag)
1468 AC_SUBST(frags)
1469
1470 changequote(,)dnl
1471 hostfile=`sed -n '
1472 s/XM_FILE[      ]*=[    ]*\([^  ]*\)/\1/p
1473 ' ${host_makefile_frag}`
1474
1475 targetfile=`sed -n '
1476 s/DEPRECATED_TM_FILE[   ]*=[    ]*\([^  ]*\)/\1/p
1477 ' ${target_makefile_frag}`
1478
1479 if test "${target}" = "${host}"; then
1480 # We pick this up from the host configuration file (.mh) because we
1481 # do not have a native configuration Makefile fragment.
1482 nativefile=`sed -n '
1483 s/NAT_FILE[     ]*=[    ]*\([^  ]*\)/\1/p
1484 ' ${host_makefile_frag}`
1485 fi
1486 changequote([,])
1487
1488 if test x"${gdb_osabi}" != x ; then
1489     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
1490                        [Define to the default OS ABI for this configuration.])
1491 fi
1492
1493 # Enable multi-ice-gdb-server.
1494 AC_ARG_ENABLE(multi-ice,
1495 [  --enable-multi-ice      build the multi-ice-gdb-server],
1496   [case $enableval in
1497     yes | no)
1498       ;;
1499     *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
1500   esac])
1501 if test "x$enable_multi_ice" = xyes; then
1502    AC_CONFIG_SUBDIRS(multi-ice)
1503 fi
1504
1505 # We only build gdbserver automatically if host and target are the same.
1506 if test "x$target" = "x$host"; then
1507   AC_MSG_CHECKING(whether gdbserver is supported on this host)
1508   if test "x$build_gdbserver" = xyes; then
1509     AC_MSG_RESULT(yes)
1510     AC_CONFIG_SUBDIRS(gdbserver)
1511   else
1512     AC_MSG_RESULT(no)
1513   fi
1514 fi
1515
1516 # If hostfile (XM_FILE) and/or targetfile (DEPRECATED_TM_FILE) and/or
1517 # nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
1518 # to an empty version.
1519
1520 files=
1521 links=
1522
1523 rm -f xm.h
1524 xm_h=""
1525 if test "${hostfile}" != ""; then
1526     xm_h=xm.h
1527     case "${hostfile}" in
1528       xm-*.h ) GDB_XM_FILE="config/${gdb_host_cpu}/${hostfile}" ;;
1529       * ) GDB_XM_FILE="${hostfile}"
1530     esac
1531     files="${files} ${GDB_XM_FILE}"
1532     links="${links} xm.h"
1533     AC_DEFINE_UNQUOTED(GDB_XM_FILE, "${GDB_XM_FILE}", [hostfile])
1534 fi
1535 AC_SUBST(xm_h)
1536
1537 rm -f tm.h
1538 tm_h=""
1539 if test "${targetfile}" != ""; then
1540     tm_h=tm.h
1541     case "${targetfile}" in
1542       tm-*.h ) GDB_TM_FILE="config/${gdb_target_cpu}/${targetfile}" ;;
1543       * ) GDB_TM_FILE="${targetfile}"
1544     esac
1545     files="${files} ${GDB_TM_FILE}"
1546     links="${links} tm.h"
1547     AC_DEFINE_UNQUOTED(GDB_TM_FILE, "${GDB_TM_FILE}", [targetfile])
1548 fi
1549 AC_SUBST(tm_h)
1550
1551 rm -f nm.h
1552 nm_h=""
1553 if test "${nativefile}" != ""; then
1554     nm_h=nm.h
1555     case "${nativefile}" in
1556       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
1557       * ) GDB_NM_FILE="${nativefile}"
1558     esac
1559     files="${files} ${GDB_NM_FILE}"
1560     links="${links} nm.h"
1561     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
1562 fi
1563 AC_SUBST(nm_h)
1564
1565 AC_LINK_FILES($files, $links)
1566
1567 dnl Check for exe extension set on certain hosts (e.g. Win32)
1568 AC_EXEEXT
1569
1570 dnl  Detect the character set used by this host.
1571
1572 dnl  At the moment, we just assume it's ISO-8859-1 (which is a
1573 dnl  superset of ASCII containing the characters needed for French,
1574 dnl  German, Spanish, Italian, and possibly others), but if were
1575 dnl  *were* to support any host character sets other than ISO-8859-1,
1576 dnl  here's where we'd detect it.
1577 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "ISO-8859-1",
1578           [Define to be a string naming the default host character set.])
1579
1580 AM_ICONV
1581
1582 AC_OUTPUT(Makefile .gdbinit:gdbinit.in,
1583 [
1584 dnl Autoconf doesn't provide a mechanism for modifying definitions
1585 dnl provided by makefile fragments.
1586 dnl
1587
1588 changequote(,)dnl
1589 sed -e '/^DEPRECATED_TM_FILE[   ]*=/s,^DEPRECATED_TM_FILE[      ]*=[    ]*,&config/'"${gdb_target_cpu}"'/,
1590 /^XM_FILE[      ]*=/s,^XM_FILE[         ]*=[    ]*,&config/'"${gdb_host_cpu}"'/,
1591 /^NAT_FILE[     ]*=/s,^NAT_FILE[        ]*=[    ]*,&config/'"${gdb_host_cpu}"'/,' <Makefile >Makefile.tmp
1592 mv -f Makefile.tmp Makefile
1593 changequote([,])dnl
1594
1595
1596 case x$CONFIG_HEADERS in
1597 xconfig.h:config.in)
1598 echo > stamp-h ;;
1599 esac
1600 ],
1601 [
1602 gdb_host_cpu=$gdb_host_cpu
1603 gdb_target_cpu=$gdb_target_cpu
1604 nativefile=$nativefile
1605 ])
1606
1607 exit 0