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 3 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, see <http://www.gnu.org/licenses/>.
  20
  21 dnl Process this file with autoconf to produce a configure script.
  22
  23 AC_PREREQ(2.59)dnl
  24 AC_INIT(main.c)
  25 AC_CONFIG_HEADER(config.h:config.in)
  26 AM_MAINTAINER_MODE
  27
  28 AC_PROG_CC
  29 AC_GNU_SOURCE
  30 AC_AIX
  31 AC_ISC_POSIX
  32 AM_PROG_CC_STDC
  33
  34 AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
  35 AC_CANONICAL_SYSTEM
  36
  37 dnl List of object files and targets accumulated by configure.
  38
  39 CONFIG_OBS=
  40 CONFIG_DEPS=
  41 CONFIG_SRCS=
  42 ENABLE_CFLAGS=
  43
  44 CONFIG_ALL=
  45 CONFIG_CLEAN=
  46 CONFIG_INSTALL=
  47 CONFIG_UNINSTALL=
  48
  49 dnl Set up for gettext.
  50 ZW_GNU_GETTEXT_SISTER_DIR
  51
  52 localedir='${datadir}/locale'
  53 AC_SUBST(localedir)
  54
  55 if test x"$USE_NLS" = xyes; then
  56    CONFIG_ALL="$CONFIG_ALL all-po"
  57    CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
  58    CONFIG_INSTALL="$CONFIG_INSTALL install-po"
  59    CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
  60 fi
  61
  62 PACKAGE=gdb
  63 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
  64 AC_SUBST(PACKAGE)
  65
  66 debugdir=${libdir}/debug
  67
  68 AC_ARG_WITH(separate-debug-dir,
  69 [  --with-separate-debug-dir=path   Look for global separate debug info in this path [LIBDIR/debug]],
  70 [debugdir="${withval}"])
  71
  72 AC_DEFINE_DIR(DEBUGDIR, debugdir,
  73               [Global directory for separate debug files. ])
  74 #AC_DEFINE_UNQUOTED(DEBUGDIR, "$debugdir"),
  75
  76 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
  77   if test "x$prefix" = xNONE; then
  78     test_prefix=/usr/local
  79   else
  80     test_prefix=$prefix
  81   fi
  82 else
  83   test_prefix=$exec_prefix
  84 fi
  85 case ${debugdir} in
  86 "${test_prefix}"|"${test_prefix}/"*|\
  87 '${exec_prefix}'|'${exec_prefix}/'*)
  88   AC_DEFINE(DEBUGDIR_RELOCATABLE, 1, [Define if the debug directory should be relocated when GDB is moved.])
  89   ;;
  90 esac
  91
  92 AC_CONFIG_SUBDIRS(doc testsuite)
  93
  94 # Check whether to support alternative target configurations
  95 AC_ARG_ENABLE(targets,
  96 [  --enable-targets        alternative target configurations],
  97 [case "${enableval}" in
  98   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
  99             ;;
 100   no)       enable_targets= ;;
 101   *)        enable_targets=$enableval ;;
 102 esac])
 103
 104 # Check whether to enable 64-bit support on 32-bit hosts
 105 AC_ARG_ENABLE(64-bit-bfd,
 106 [  --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)],
 107 [case "${enableval}" in
 108   yes)  want64=true  ;;
 109   no)   want64=false ;;
 110   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
 111 esac],[want64=false])dnl
 112
 113 # Provide defaults for some variables set by the per-host and per-target
 114 # configuration.
 115 gdb_host_obs=posix-hdep.o
 116
 117 if test "${target}" = "${host}"; then
 118   gdb_native=yes
 119 else
 120   gdb_native=no
 121 fi
 122
 123 . $srcdir/configure.host
 124
 125 # Accumulate some settings from configure.tgt over all enabled targets
 126
 127 TARGET_OBS=
 128 all_targets=
 129
 130 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 131 do
 132   if test "$targ_alias" = "all"; then
 133     all_targets=true
 134   else
 135     # Canonicalize the secondary target names.
 136     result=`$ac_config_sub $targ_alias 2>/dev/null`
 137     if test -n "$result"; then
 138         targ=$result
 139     else
 140         targ=$targ_alias
 141     fi
 142
 143     . ${srcdir}/configure.tgt
 144
 145     # Target-specific object files
 146     for i in ${gdb_target_obs}; do
 147         case " $TARGET_OBS " in
 148         *" ${i} "*) ;;
 149         *)
 150           TARGET_OBS="$TARGET_OBS ${i}"
 151           ;;
 152         esac
 153     done
 154
 155     # Check whether this target needs 64-bit CORE_ADDR
 156     if test x${want64} = xfalse; then
 157       . ${srcdir}/../bfd/config.bfd
 158     fi
 159   fi
 160 done
 161
 162 if test x${all_targets} = xtrue; then
 163
 164   # We want all 64-bit targets if we either:
 165   #  - run on a 64-bit host  or
 166   #  - already require 64-bit support for some other target  or
 167   #  - the --enable-64-bit-bfd option was supplied
 168   # Otherwise we only support all 32-bit targets.
 169   #
 170   # NOTE: This test must be in sync with the corresponding
 171   #       tests in BFD!
 172
 173   if test x${want64} = xfalse; then
 174     AC_CHECK_SIZEOF(long)
 175     if test "x${ac_cv_sizeof_long}" = "x8"; then
 176       want64=true
 177     fi
 178   fi
 179   if test x${want64} = xtrue; then
 180     TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
 181   else
 182     TARGET_OBS='$(ALL_TARGET_OBS)'
 183   fi
 184 fi
 185
 186 AC_SUBST(TARGET_OBS)
 187
 188 # For other settings, only the main target counts.
 189 gdb_sim=
 190 gdb_osabi=
 191 build_gdbserver=
 192 targ=$target; . ${srcdir}/configure.tgt
 193
 194 # Fetch the default architecture and default target vector from BFD.
 195 targ=$target; . $srcdir/../bfd/config.bfd
 196
 197 # We only want the first architecture, so strip off the others if
 198 # there is more than one.
 199 targ_archs=`echo $targ_archs | sed 's/ .*//'`
 200
 201 if test "x$targ_archs" != x; then
 202   AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
 203     [Define to BFD's default architecture. ])
 204 fi
 205 if test "x$targ_defvec" != x; then
 206   AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
 207     [Define to BFD's default target vector. ])
 208 fi
 209
 210 AC_ARG_PROGRAM
 211
 212 # The CLI cannot be disabled yet, but may be in the future.
 213
 214 # Enable CLI.
 215 AC_ARG_ENABLE(gdbcli,
 216 [  --disable-gdbcli        disable command-line interface (CLI)],
 217   [case $enableval in
 218     yes)
 219       ;;
 220     no)
 221       AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
 222     *)
 223       AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
 224   esac],
 225   [enable_gdbcli=yes])
 226 if test x"$enable_gdbcli" = xyes; then
 227   if test -d $srcdir/cli; then
 228     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
 229     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
 230     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
 231     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
 232   fi
 233 fi
 234
 235 # Enable MI.
 236 AC_ARG_ENABLE(gdbmi,
 237 [  --disable-gdbmi         disable machine-interface (MI)],
 238   [case $enableval in
 239     yes | no)
 240       ;;
 241     *)
 242       AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
 243   esac],
 244   [enable_gdbmi=yes])
 245 if test x"$enable_gdbmi" = xyes; then
 246   if test -d $srcdir/mi; then
 247     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
 248     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
 249     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
 250     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
 251   fi
 252 fi
 253
 254 # Enable TUI.
 255 AC_ARG_ENABLE(tui,
 256 [  --enable-tui            enable full-screen terminal user interface (TUI)],
 257   [case $enableval in
 258     yes | no)
 259       ;;
 260     *)
 261       AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
 262   esac],enable_tui=yes)
 263
 264 # Enable gdbtk.
 265 AC_ARG_ENABLE(gdbtk,
 266 [  --enable-gdbtk          enable gdbtk graphical user interface (GUI)],
 267   [case $enableval in
 268     yes | no)
 269       ;;
 270     *)
 271       AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
 272   esac],
 273   [if test -d $srcdir/gdbtk -a -d $srcdir/../itcl; then
 274     enable_gdbtk=yes
 275   else
 276     enable_gdbtk=no
 277   fi])
 278 # We unconditionally disable gdbtk tests on selected platforms.
 279 case $host_os in
 280   go32* | windows*)
 281     AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
 282     enable_gdbtk=no ;;
 283 esac
 284
 285 # Libunwind support.
 286 AC_ARG_WITH(libunwind,
 287 [  --with-libunwind            Use libunwind frame unwinding support],
 288 [case "${withval}" in
 289   yes)  enable_libunwind=yes ;;
 290   no)   enable_libunwind=no ;;
 291   *)    AC_MSG_ERROR(bad value ${withval} for GDB with-libunwind option) ;;
 292 esac],[
 293   AC_CHECK_HEADERS(libunwind.h)
 294   AC_CHECK_HEADERS(libunwind-ia64.h)
 295   if test x"$ac_cv_header_libunwind_h" = xyes -a x"$ac_cv_header_libunwind_ia64_h" = xyes; then
 296     enable_libunwind=yes;
 297   fi
 298 ])
 299
 300 if test x"$enable_libunwind" = xyes; then
 301   AC_CHECK_HEADERS(libunwind.h)
 302   AC_CHECK_HEADERS(libunwind-ia64.h)
 303   AC_DEFINE(HAVE_LIBUNWIND, 1, [Define if libunwind library is being used.])
 304   CONFIG_OBS="$CONFIG_OBS libunwind-frame.o"
 305   CONFIG_DEPS="$CONFIG_DEPS libunwind-frame.o"
 306   CONFIG_SRCS="$CONFIG_SRCS libunwind-frame.c"
 307 fi
 308
 309 # Profiling support.
 310 AC_ARG_ENABLE(profiling,
 311 [  --enable-profiling      enable profiling of GDB],
 312   [case $enableval in
 313     yes | no)
 314       ;;
 315     *)
 316       AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
 317   esac],
 318  [enable_profiling=no])
 319
 320 AC_CHECK_FUNCS(monstartup _mcleanup)
 321 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
 322 [AC_TRY_LINK(
 323 [#include <stdlib.h>
 324 extern char _etext;
 325 ],
 326 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
 327 if test $ac_cv_var__etext = yes; then
 328   AC_DEFINE(HAVE__ETEXT, 1,
 329             [Define to 1 if your system has the _etext variable. ])
 330 fi
 331 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
 332 [AC_TRY_LINK(
 333 [#include <stdlib.h>
 334 extern char etext;
 335 ],
 336 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
 337 if test $ac_cv_var_etext = yes; then
 338   AC_DEFINE(HAVE_ETEXT, 1,
 339             [Define to 1 if your system has the etext variable. ])
 340 fi
 341 if test "$enable_profiling" = yes ; then
 342   if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
 343     AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
 344   fi
 345   PROFILE_CFLAGS=-pg
 346   OLD_CFLAGS="$CFLAGS"
 347   CFLAGS="$CFLAGS $PROFILE_CFLAGS"
 348
 349   AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
 350     [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
 351      ac_cv_cc_supports_pg=no)])
 352
 353   if test $ac_cv_cc_supports_pg = no; then
 354     AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
 355   fi
 356
 357   CFLAGS="$OLD_CFLAGS"
 358 fi
 359
 360 # --------------------- #
 361 # Checks for programs.  #
 362 # --------------------- #
 363
 364 AC_PROG_AWK
 365 AC_PROG_INSTALL
 366 AC_PROG_LN_S
 367 AC_PROG_RANLIB
 368 AC_PROG_YACC
 369
 370 AC_CHECK_TOOL(AR, ar)
 371 AC_CHECK_TOOL(DLLTOOL, dlltool)
 372 AC_CHECK_TOOL(WINDRES, windres)
 373
 374 # Needed for GNU/Hurd.
 375 AC_CHECK_TOOL(MIG, mig)
 376
 377 # ---------------------- #
 378 # Checks for libraries.  #
 379 # ---------------------- #
 380
 381 # We might need to link with -lm; most simulators need it.
 382 AC_CHECK_LIB(m, main)
 383
 384 # We need to link with -lw to get `wctype' on Solaris before Solaris
 385 # 2.6.  Solaris 2.6 and beyond have this function in libc, and have a
 386 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
 387 # is known to have this problem).  Therefore we avoid libw if we can.
 388 AC_CHECK_FUNC(wctype, [],
 389   [AC_CHECK_LIB(w, wctype)])
 390
 391 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 392 AC_SEARCH_LIBS(gethostbyname, nsl)
 393
 394 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 395 AC_SEARCH_LIBS(socketpair, socket)
 396
 397 # For the TUI, we need enhanced curses functionality.
 398 #
 399 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
 400 # curses library because the latter might not provide all the
 401 # functionality we need.  However, this leads to problems on systems
 402 # where the linker searches /usr/local/lib, but the compiler doesn't
 403 # search /usr/local/include, if ncurses is installed in /usr/local.  A
 404 # default installation of ncurses on alpha*-dec-osf* will lead to such
 405 # a situation.
 406 AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
 407
 408 # On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).
 409 AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl])
 410
 411 # Since GDB uses Readline, we need termcap functionality.  In many
 412 # cases this will be provided by the curses library, but some systems
 413 # have a seperate termcap library, or no curses library at all.
 414
 415 case $host_os in
 416   cygwin*)
 417     if test -d $srcdir/libtermcap; then
 418       LIBS="../libtermcap/libtermcap.a $LIBS"
 419       ac_cv_search_tgetent="../libtermcap/libtermcap.a"
 420     fi ;;
 421   go32* | *djgpp*)
 422     ac_cv_search_tgetent="none required"
 423     ;;
 424   *mingw32*)
 425     ac_cv_search_tgetent="none required"
 426     CONFIG_OBS="$CONFIG_OBS win32-termcap.o"
 427     ;;
 428 esac
 429
 430 # These are the libraries checked by Readline.
 431 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
 432
 433 if test "$ac_cv_search_tgetent" = no; then
 434   AC_MSG_ERROR([no termcap library found])
 435 fi
 436
 437 AC_ARG_WITH([system-readline],
 438   [AS_HELP_STRING([--with-system-readline],
 439                   [use installed readline library])])
 440
 441 if test "$with_system_readline" = yes; then
 442   READLINE=-lreadline
 443   READLINE_DEPS=
 444   READLINE_CFLAGS=
 445 else
 446   READLINE='$(READLINE_DIR)/libreadline.a'
 447   READLINE_DEPS='$(READLINE)'
 448   READLINE_CFLAGS='-I$(READLINE_SRC)/..'
 449 fi
 450 AC_SUBST(READLINE)
 451 AC_SUBST(READLINE_DEPS)
 452 AC_SUBST(READLINE_CFLAGS)
 453
 454 AC_ARG_WITH(expat,
 455   AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
 456   [], [with_expat=auto])
 457 AC_MSG_CHECKING([whether to use expat])
 458 AC_MSG_RESULT([$with_expat])
 459
 460 if test "${with_expat}" = no; then
 461   AC_MSG_WARN([expat support disabled; some features may be unavailable.])
 462   HAVE_LIBEXPAT=no
 463 else
 464   AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
 465                         [XML_Parser p = XML_ParserCreate (0);])
 466   if test "$HAVE_LIBEXPAT" != yes; then
 467     if test "$with_expat" = yes; then
 468       AC_MSG_ERROR([expat is missing or unusable])
 469     else
 470       AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
 471     fi
 472   else
 473     save_LIBS=$LIBS
 474     LIBS="$LIBS $LIBEXPAT"
 475     AC_CHECK_FUNCS(XML_StopParser)
 476     LIBS=$save_LIBS
 477   fi
 478 fi
 479
 480 # ------------------------- #
 481 # Checks for header files.  #
 482 # ------------------------- #
 483
 484 AC_HEADER_DIRENT
 485 AC_HEADER_STAT
 486 AC_HEADER_STDC
 487 AC_CHECK_HEADERS(nlist.h)
 488 AC_CHECK_HEADERS(link.h, [], [],
 489 [#if HAVE_SYS_TYPES_H
 490 # include <sys/types.h>
 491 #endif
 492 #if HAVE_NLIST_H
 493 # include <nlist.h>
 494 #endif
 495 ])
 496 AC_CHECK_HEADERS(machine/reg.h)
 497 AC_CHECK_HEADERS(poll.h sys/poll.h)
 498 AC_CHECK_HEADERS(proc_service.h thread_db.h gnu/libc-version.h)
 499 AC_CHECK_HEADERS(signal.h)
 500 AC_CHECK_HEADERS(stddef.h)
 501 AC_CHECK_HEADERS(stdlib.h)
 502 AC_CHECK_HEADERS(stdint.h)
 503 AC_CHECK_HEADERS(string.h memory.h strings.h)
 504 AC_CHECK_HEADERS(sys/fault.h)
 505 AC_CHECK_HEADERS(sys/file.h)
 506 AC_CHECK_HEADERS(sys/filio.h)
 507 AC_CHECK_HEADERS(sys/ioctl.h)
 508 AC_CHECK_HEADERS(sys/param.h)
 509 AC_CHECK_HEADERS(sys/resource.h)
 510 AC_CHECK_HEADERS(sys/proc.h, [], [],
 511 [#if HAVE_SYS_PARAM_H
 512 # include <sys/param.h>
 513 #endif
 514 ])
 515 AC_CHECK_HEADERS(sys/procfs.h)
 516 AC_CHECK_HEADERS(sys/ptrace.h ptrace.h)
 517 AC_CHECK_HEADERS(sys/reg.h sys/debugreg.h)
 518 AC_CHECK_HEADERS(sys/select.h)
 519 AC_CHECK_HEADERS(sys/syscall.h)
 520 AC_CHECK_HEADERS(sys/types.h)
 521 AC_CHECK_HEADERS(sys/user.h, [], [],
 522 [#if HAVE_SYS_PARAM_H
 523 # include <sys/param.h>
 524 #endif
 525 ])
 526 AC_CHECK_HEADERS(sys/wait.h wait.h)
 527 AC_CHECK_HEADERS(termios.h termio.h sgtty.h)
 528 AC_CHECK_HEADERS(unistd.h)
 529
 530 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
 531 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
 532 # think that we don't have <curses.h> if we're using GCC.
 533 case $host_os in
 534   solaris2.[[789]])
 535     if test "$GCC" = yes; then
 536       AC_DEFINE(_MSE_INT_H, 1,
 537         [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
 538    Solaris 2.[789] when using GCC. ])
 539     fi ;;
 540 esac
 541 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h)
 542 AC_CHECK_HEADERS(ncurses/term.h)
 543 AC_CHECK_HEADERS(term.h, [], [],
 544 [#if HAVE_CURSES_H
 545 # include <curses.h>
 546 #endif
 547 ])
 548
 549 # Check for HP/UX 64-bit shared library support
 550 AC_CHECK_HEADERS(elf_hp.h)
 551
 552 # FIXME: kettenis/20030102: In most cases we include these
 553 # unconditionally, so what's the point in checking these?
 554 AC_CHECK_HEADERS(ctype.h time.h)
 555
 556 # Create a header we can use portably to get the standard integer types.
 557 GCC_HEADER_STDINT(gdb_stdint.h)
 558
 559 # ------------------------- #
 560 # Checks for declarations.  #
 561 # ------------------------- #
 562
 563 AC_CHECK_DECLS([free, malloc, realloc])
 564 AC_CHECK_DECLS([strerror, strstr])
 565 AC_CHECK_DECLS([getopt, snprintf, vsnprintf])
 566
 567 # ----------------------- #
 568 # Checks for structures.  #
 569 # ----------------------- #
 570
 571 AC_CHECK_MEMBERS([struct stat.st_blocks])
 572 AC_CHECK_MEMBERS([struct stat.st_blksize])
 573
 574 # ------------------ #
 575 # Checks for types.  #
 576 # ------------------ #
 577
 578 AC_TYPE_SIGNAL
 579 AC_CHECK_TYPES(socklen_t, [], [],
 580 [#include <sys/types.h>
 581 #include <sys/socket.h>
 582 ])
 583 AC_CHECK_TYPES(uintptr_t, [], [], [#include <stdint.h>])
 584
 585 # ------------------------------------- #
 586 # Checks for compiler characteristics.  #
 587 # ------------------------------------- #
 588
 589 AC_C_CONST
 590 AC_C_INLINE
 591 AC_C_BIGENDIAN
 592
 593 # ------------------------------ #
 594 # Checks for library functions.  #
 595 # ------------------------------ #
 596
 597 AC_FUNC_ALLOCA
 598 AC_FUNC_MMAP
 599 AC_FUNC_VFORK
 600 AC_CHECK_FUNCS(canonicalize_file_name realpath)
 601 AC_CHECK_FUNCS(getrusage)
 602 AC_CHECK_FUNCS(getuid getgid)
 603 AC_CHECK_FUNCS(poll)
 604 AC_CHECK_FUNCS(pread64)
 605 AC_CHECK_FUNCS(sbrk)
 606 AC_CHECK_FUNCS(setpgid setpgrp)
 607 AC_CHECK_FUNCS(sigaction sigprocmask sigsetmask)
 608 AC_CHECK_FUNCS(socketpair)
 609 AC_CHECK_FUNCS(syscall)
 610 AC_CHECK_FUNCS(ttrace)
 611 AC_CHECK_FUNCS(wborder)
 612
 613 # Check the return and argument types of ptrace.  No canned test for
 614 # this, so roll our own.
 615 gdb_ptrace_headers='
 616 #if HAVE_SYS_TYPES_H
 617 # include <sys/types.h>
 618 #endif
 619 #if HAVE_SYS_PTRACE_H
 620 # include <sys/ptrace.h>
 621 #endif
 622 #if HAVE_UNISTD_H
 623 # include <unistd.h>
 624 #endif
 625 '
 626 # There is no point in checking if we don't have a prototype.
 627 AC_CHECK_DECLS(ptrace, [], [
 628   : ${gdb_cv_func_ptrace_ret='int'}
 629   : ${gdb_cv_func_ptrace_args='int,int,long,long'}
 630 ], $gdb_ptrace_headers)
 631 # Check return type.
 632 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
 633   AC_TRY_COMPILE($gdb_ptrace_headers,
 634     [extern int ptrace ();],
 635     gdb_cv_func_ptrace_ret='int',
 636     gdb_cv_func_ptrace_ret='long'))
 637 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
 638   [Define as the return type of ptrace.])
 639 # Check argument types.
 640 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
 641 for gdb_arg1 in 'int' 'long'; do
 642  for gdb_arg2 in 'pid_t' 'int' 'long'; do
 643   for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long'; do
 644    for gdb_arg4 in 'int' 'long'; do
 645      AC_TRY_COMPILE($gdb_ptrace_headers, [
 646 extern $gdb_cv_func_ptrace_ret
 647   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
 648 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
 649     break 4;])
 650     for gdb_arg5 in 'int *' 'int' 'long'; do
 651      AC_TRY_COMPILE($gdb_ptrace_headers, [
 652 extern $gdb_cv_func_ptrace_ret
 653   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
 654 ], [
 655 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
 656     break 5;])
 657     done
 658    done
 659   done
 660  done
 661 done
 662 # Provide a safe default value.
 663 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
 664 ])
 665 ac_save_IFS=$IFS; IFS=','
 666 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
 667 IFS=$ac_save_IFS
 668 shift
 669 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
 670   [Define to the type of arg 3 for ptrace.])
 671 if test -n "$[5]"; then
 672   AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
 673     [Define to the type of arg 5 for ptrace.])
 674 fi
 675
 676 dnl AC_FUNC_SETPGRP does not work when cross compiling
 677 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
 678 if test "$cross_compiling" = no; then
 679   AC_FUNC_SETPGRP
 680 else
 681   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
 682     [AC_TRY_COMPILE([
 683 #include <unistd.h>
 684 ], [
 685   if (setpgrp(1,1) == -1)
 686     exit (0);
 687   else
 688     exit (1);
 689 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
 690 if test $ac_cv_func_setpgrp_void = yes; then
 691   AC_DEFINE(SETPGRP_VOID, 1)
 692 fi
 693 fi
 694
 695 # Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do
 696 # since sigsetjmp might only be defined as a macro.
 697 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
 698 [AC_TRY_COMPILE([
 699 #include <setjmp.h>
 700 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
 701 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
 702 if test $gdb_cv_func_sigsetjmp = yes; then
 703   AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
 704 fi
 705
 706 # Assume we'll default to using the included libiberty regex.
 707 gdb_use_included_regex=yes
 708
 709 # However, if the system regex is GNU regex, then default to *not*
 710 # using the included regex.
 711 AC_CACHE_CHECK(
 712   [for GNU regex],
 713   [gdb_cv_have_gnu_regex],
 714   [AC_TRY_COMPILE(
 715     [#include <gnu-versions.h>],
 716     [#define REGEX_INTERFACE_VERSION 1
 717 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
 718 # error "Version mismatch"
 719 #endif],
 720     gdb_cv_have_gnu_regex=yes,
 721     gdb_cv_have_gnu_regex=no)])
 722 if test $gdb_cv_have_gnu_regex = yes; then
 723   gdb_use_included_regex=no
 724 fi
 725
 726 AC_ARG_WITH(included-regex,
 727   [  --without-included-regex don't use included regex; this is the default
 728                           on systems with version 2 of the GNU C library
 729                           (use with caution on other system)],
 730   gdb_with_regex=$withval,
 731   gdb_with_regex=$gdb_use_included_regex)
 732 if test "$gdb_with_regex" = yes; then
 733   AC_DEFINE(USE_INCLUDED_REGEX, 1,
 734     [Define to 1 if the regex included in libiberty should be used.])
 735 fi
 736
 737 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
 738 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
 739 [#include <sys/param.h>
 740 #include <sys/proc.h>
 741 ])
 742
 743 # See if <sys/lwp.h> defines `struct lwp`.
 744 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
 745 [AC_TRY_COMPILE([#include <sys/param.h>
 746 #include <sys/lwp.h>], [struct lwp l;],
 747 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
 748 if test $gdb_cv_struct_lwp = yes; then
 749   AC_DEFINE(HAVE_STRUCT_LWP, 1,
 750             [Define to 1 if your system has struct lwp.])
 751 fi
 752
 753 # See if <machine/reg.h> degines `struct reg'.
 754 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
 755 [AC_TRY_COMPILE([#include <sys/types.h>
 756 #include <machine/reg.h>], [struct reg r;],
 757 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
 758 if test $gdb_cv_struct_reg = yes; then
 759   AC_DEFINE(HAVE_STRUCT_REG, 1,
 760             [Define to 1 if your system has struct reg in <machine/reg.h>.])
 761 fi
 762
 763 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
 764 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
 765 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
 766                  [#include <machine/reg.h>])
 767
 768 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
 769 AC_MSG_CHECKING(for PTRACE_GETREGS)
 770 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
 771 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
 772                 [PTRACE_GETREGS;],
 773                 [gdb_cv_have_ptrace_getregs=yes],
 774                 [gdb_cv_have_ptrace_getregs=no])])
 775 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
 776 if test $gdb_cv_have_ptrace_getregs = yes; then
 777   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
 778   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
 779 fi
 780
 781 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
 782 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
 783 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
 784 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
 785                 [PTRACE_GETFPXREGS;],
 786                 [gdb_cv_have_ptrace_getfpxregs=yes],
 787                 [gdb_cv_have_ptrace_getfpxregs=no])])
 788 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
 789 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
 790   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
 791   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
 792 fi
 793
 794 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
 795 AC_MSG_CHECKING(for PT_GETDBREGS)
 796 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
 797 [AC_TRY_COMPILE([#include <sys/types.h>
 798 #include <sys/ptrace.h>],
 799                 [PT_GETDBREGS;],
 800                 [gdb_cv_have_pt_getdbregs=yes],
 801                 [gdb_cv_have_pt_getdbregs=no])])
 802 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
 803 if test $gdb_cv_have_pt_getdbregs = yes; then
 804   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
 805   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
 806 fi
 807
 808 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
 809 AC_MSG_CHECKING(for PT_GETXMMREGS)
 810 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
 811 [AC_TRY_COMPILE([#include <sys/types.h>
 812 #include <sys/ptrace.h>],
 813                 [PT_GETXMMREGS;],
 814                 [gdb_cv_have_pt_getxmmregs=yes],
 815                 [gdb_cv_have_pt_getxmmregs=no])])
 816 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
 817 if test $gdb_cv_have_pt_getxmmregs = yes; then
 818   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
 819   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
 820 fi
 821
 822 # Detect which type of /proc is in use, such as for Unixware or Solaris.
 823
 824 if test "${target}" = "${host}"; then
 825   case "${host}" in
 826   *-*-unixware* | *-*-sysv4.2* | *-*-sysv5* | *-*-interix* )
 827       AC_DEFINE(NEW_PROC_API, 1,
 828       [Define if you want to use new multi-fd /proc interface
 829        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
 830       ;;
 831   *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]])
 832       AC_DEFINE(NEW_PROC_API, 1,
 833       [Define if you want to use new multi-fd /proc interface
 834        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
 835       ;;
 836   mips-sgi-irix5*)
 837       # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
 838       AC_DEFINE([_KMEMUSER], 1,
 839       [Define to 1 so <sys/proc.h> gets a definition of anon_hdl.  Works
 840        around a <sys/proc.h> problem on IRIX 5.])
 841       ;;
 842   esac
 843 fi
 844
 845 if test "$ac_cv_header_sys_procfs_h" = yes; then
 846   BFD_HAVE_SYS_PROCFS_TYPE(pstatus_t)
 847   BFD_HAVE_SYS_PROCFS_TYPE(prrun_t)
 848   BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
 849   BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
 850   BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
 851   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
 852   BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
 853   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset32_t)
 854   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
 855   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
 856   BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
 857   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
 858   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
 859   BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
 860
 861
 862   dnl Check for broken prfpregset_t type
 863
 864   dnl For Linux/i386, glibc 2.1.3 was released with a bogus
 865   dnl prfpregset_t type (it's a typedef for the pointer to a struct
 866   dnl instead of the struct itself).  We detect this here, and work
 867   dnl around it in gdb_proc_service.h.
 868
 869   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
 870     AC_MSG_CHECKING(whether prfpregset_t type is broken)
 871     AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
 872       [AC_TRY_RUN([#include <sys/procfs.h>
 873        int main ()
 874        {
 875          if (sizeof (prfpregset_t) == sizeof (void *))
 876            return 1;
 877          return 0;
 878        }],
 879        gdb_cv_prfpregset_t_broken=no,
 880        gdb_cv_prfpregset_t_broken=yes,
 881        gdb_cv_prfpregset_t_broken=yes)])
 882     AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
 883     if test $gdb_cv_prfpregset_t_broken = yes; then
 884       AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
 885       [Define if the prfpregset_t type is broken.])
 886     fi
 887   fi
 888
 889   dnl Check for PIOCSET ioctl entry
 890
 891   AC_MSG_CHECKING(for PIOCSET ioctl entry in sys/procfs.h)
 892   AC_CACHE_VAL(gdb_cv_have_procfs_piocset,
 893   [AC_TRY_COMPILE([#include <unistd.h>
 894 #include <sys/types.h>
 895 #include <sys/procfs.h>
 896 ], [
 897     int dummy;;
 898     dummy = ioctl(0, PIOCSET, &dummy);
 899   ],
 900   gdb_cv_have_procfs_piocset=yes, gdb_cv_have_procfs_piocset=no)])
 901   AC_MSG_RESULT($gdb_cv_have_procfs_piocset)
 902   if test $gdb_cv_have_procfs_piocset = yes; then
 903     AC_DEFINE(HAVE_PROCFS_PIOCSET, 1,
 904     [Define if ioctl argument PIOCSET is available.])
 905   fi
 906 fi
 907
 908 dnl For native ports (host == target), check to see what kind of
 909 dnl legacy link.h support is needed.  (See solib-legacy.c.)
 910 if test ${host} = ${target} ; then
 911   dnl Check for struct link_map with l_ members which are indicative
 912   dnl of SVR4-like shared libraries
 913
 914   AC_MSG_CHECKING(for member l_addr in struct link_map)
 915   AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_l_members,
 916     [AC_TRY_COMPILE([#include <link.h>],
 917                     [struct link_map lm; (void) lm.l_addr;],
 918                     gdb_cv_have_struct_link_map_with_l_members=yes,
 919                     gdb_cv_have_struct_link_map_with_l_members=no)])
 920   AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_l_members)
 921   if test $gdb_cv_have_struct_link_map_with_l_members = yes; then
 922     AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS,1,
 923     [Define if <link.h> exists and defines struct link_map which has
 924      members with an ``l_'' prefix.  (For Solaris, SVR4, and
 925      SVR4-like systems.)])
 926   fi
 927
 928   dnl Check for struct link_map with lm_ members which are indicative
 929   dnl of SunOS-like shared libraries
 930
 931   AC_MSG_CHECKING(for member lm_addr in struct link_map)
 932   AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_lm_members,
 933     [AC_TRY_COMPILE([#include <sys/types.h>
 934 #include <link.h>],
 935                     [struct link_map lm; (void) lm.lm_addr;],
 936                     gdb_cv_have_struct_link_map_with_lm_members=yes,
 937                     gdb_cv_have_struct_link_map_with_lm_members=no)])
 938   AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_lm_members)
 939   if test $gdb_cv_have_struct_link_map_with_lm_members = yes; then
 940     AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS, 1,
 941     [Define if <link.h> exists and defines struct link_map which has
 942      members with an ``lm_'' prefix.  (For SunOS.)])
 943   fi
 944
 945   dnl Check for struct so_map with som_ members which are found on
 946   dnl some *BSD systems.
 947
 948   AC_MSG_CHECKING(for member som_addr in struct so_map)
 949   AC_CACHE_VAL(gdb_cv_have_struct_so_map_with_som_members,
 950     [AC_TRY_COMPILE([#include <sys/types.h>
 951 #ifdef HAVE_NLIST_H
 952 #include <nlist.h>
 953 #endif
 954 #include <link.h>],
 955                     [struct so_map lm; (void) lm.som_addr;],
 956                     gdb_cv_have_struct_so_map_with_som_members=yes,
 957                     gdb_cv_have_struct_so_map_with_som_members=no)])
 958   AC_MSG_RESULT($gdb_cv_have_struct_so_map_with_som_members)
 959   if test $gdb_cv_have_struct_so_map_with_som_members = yes; then
 960     AC_DEFINE(HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS, 1,
 961     [Define if <link.h> exists and defines a struct so_map which has
 962      members with an ``som_'' prefix.  (Found on older *BSD systems.)])
 963   fi
 964
 965   dnl Check for struct link_map32 type, which allows a 64-bit Solaris
 966   dnl debugger to debug a 32-bit Solaris app with 32-bit shared libraries.
 967
 968   AC_MSG_CHECKING(for struct link_map32 in sys/link.h)
 969   AC_CACHE_VAL(gdb_cv_have_struct_link_map32,
 970     [AC_TRY_COMPILE([#define _SYSCALL32
 971 #include <sys/link.h>], [struct link_map32 l;],
 972      gdb_cv_have_struct_link_map32=yes,
 973      gdb_cv_have_struct_link_map32=no)])
 974   AC_MSG_RESULT($gdb_cv_have_struct_link_map32)
 975   if test $gdb_cv_have_struct_link_map32 = yes; then
 976     AC_DEFINE(HAVE_STRUCT_LINK_MAP32, 1,
 977     [Define if <sys/link.h> has struct link_map32])
 978     AC_DEFINE(_SYSCALL32, 1,
 979     [Define if <sys/link.h> has link_map32 (solaris sparc-64 target)])
 980   fi
 981 fi
 982
 983 # Check if the compiler supports the `long long' type.
 984
 985 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
 986                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
 987 [[extern long long foo;]],
 988 [[switch (foo & 2) { case 0: return 1; }]])],
 989                                   gdb_cv_c_long_long=yes,
 990                                   gdb_cv_c_long_long=no)])
 991 if test $gdb_cv_c_long_long = yes; then
 992   AC_DEFINE(CC_HAS_LONG_LONG, 1,
 993             [Define to 1 if the compiler supports long long.])
 994 fi
 995
 996 # Check if the compiler and runtime support printing long longs.
 997
 998 AC_CACHE_CHECK([for long long support in printf],
 999                gdb_cv_printf_has_long_long,
1000                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1001 [[char buf[32];
1002   long long l = 0;
1003   l = (l << 16) + 0x0123;
1004   l = (l << 16) + 0x4567;
1005   l = (l << 16) + 0x89ab;
1006   l = (l << 16) + 0xcdef;
1007   sprintf (buf, "0x%016llx", l);
1008   return (strcmp ("0x0123456789abcdef", buf));]])],
1009                               gdb_cv_printf_has_long_long=yes,
1010                               gdb_cv_printf_has_long_long=no,
1011                               gdb_cv_printf_has_long_long=no)])
1012 if test $gdb_cv_printf_has_long_long = yes; then
1013   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1014             [Define to 1 if the "%ll" format works to print long longs.])
1015 fi
1016
1017 # Check if the compiler and runtime support printing decfloats.
1018
1019 AC_CACHE_CHECK([for decfloat support in printf],
1020                gdb_cv_printf_has_decfloat,
1021                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1022 [[char buf[64];
1023   _Decimal32 d32 = 1.2345df;
1024   _Decimal64 d64 = 1.2345dd;
1025   _Decimal128 d128 = 1.2345dl;
1026   sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1027   return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1028                               gdb_cv_printf_has_decfloat=yes,
1029                               gdb_cv_printf_has_decfloat=no,
1030                               gdb_cv_printf_has_decfloat=no)])
1031 if test $gdb_cv_printf_has_decfloat = yes; then
1032   AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1033             [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1034 fi
1035
1036 # Check if the compiler supports the `long double' type.  We can't use
1037 # AC_C_LONG_DOUBLE because that one does additional checks on the
1038 # constants defined in <float.h> that fail on some systems,
1039 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1040
1041 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1042                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1043                                   gdb_cv_c_long_double=yes,
1044                                   gdb_cv_c_long_double=no)])
1045 if test $gdb_cv_c_long_double = yes; then
1046   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1047            [Define to 1 if the compiler supports long double.])
1048 fi
1049
1050 # Check if the compiler and runtime support printing long doubles.
1051
1052 AC_CACHE_CHECK([for long double support in printf],
1053                gdb_cv_printf_has_long_double,
1054                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1055 [[char buf[16];
1056   long double f = 3.141592653;
1057   sprintf (buf, "%Lg", f);
1058   return (strncmp ("3.14159", buf, 7));]])],
1059                               gdb_cv_printf_has_long_double=yes,
1060                               gdb_cv_printf_has_long_double=no,
1061                               gdb_cv_printf_has_long_double=no)])
1062 if test $gdb_cv_printf_has_long_double = yes; then
1063   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1064             [Define to 1 if the "%Lg" format works to print long doubles.])
1065 fi
1066
1067 # Check if the compiler and runtime support scanning long doubles.
1068
1069 AC_CACHE_CHECK([for long double support in scanf],
1070                gdb_cv_scanf_has_long_double,
1071                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1072 [[#include <stdio.h>]],
1073 [[char *buf = "3.141592653";
1074   long double f = 0;
1075   sscanf (buf, "%Lg", &f);
1076   return !(f > 3.14159 && f < 3.14160);]])],
1077                               gdb_cv_scanf_has_long_double=yes,
1078                               gdb_cv_scanf_has_long_double=no,
1079                               gdb_cv_scanf_has_long_double=no)])
1080 if test $gdb_cv_scanf_has_long_double = yes; then
1081   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1082             [Define to 1 if the "%Lg" format works to scan long doubles.])
1083 fi
1084
1085 case ${host_os} in
1086 aix*)
1087   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1088     SAVE_LDFLAGS=$LDFLAGS
1089
1090     case $GCC in
1091     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1092     *) gdb_cv_bigtoc=-bbigtoc ;;
1093     esac
1094
1095     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1096     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1097     LDFLAGS="${SAVE_LDFLAGS}"
1098   ])
1099   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1100   ;;
1101 esac
1102
1103
1104 dnl For certain native configurations, we need to check whether thread
1105 dnl support can be built in or not.
1106 dnl
1107 dnl Note that we only want this if we are both native (host == target),
1108 dnl and not doing a canadian cross build (build == host).
1109
1110 if test ${build} = ${host} -a ${host} = ${target} ; then
1111    case ${host_os} in
1112    hpux*)
1113       AC_MSG_CHECKING(for HPUX/OSF thread support)
1114       if test -f /usr/include/dce/cma_config.h ; then
1115          if test "$GCC" = "yes" ; then
1116             AC_MSG_RESULT(yes)
1117             AC_DEFINE(HAVE_HPUX_THREAD_SUPPORT, 1,
1118             [Define if you have HPUX threads])
1119             CONFIG_OBS="${CONFIG_OBS} hpux-thread.o"
1120             CONFIG_SRCS="${CONFIG_SRCS} hpux-thread.c"
1121          else
1122             AC_MSG_RESULT(no (suppressed because you are not using GCC))
1123          fi
1124       else
1125          AC_MSG_RESULT(no)
1126       fi
1127       ;;
1128    solaris*)
1129       # See if thread_db library is around for Solaris thread debugging.
1130       # Note that we must explicitly test for version 1 of the library
1131       # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1132       # the same API.
1133       AC_MSG_CHECKING(for Solaris thread debugging library)
1134       if test -f /usr/lib/libthread_db.so.1 ; then
1135          AC_MSG_RESULT(yes)
1136          AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1137          [Define if using Solaris thread debugging.])
1138          CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1139          CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1140          AC_CHECK_LIB(dl, dlopen)
1141          if test "$GCC" = "yes" ; then
1142             # The GNU linker requires the -export-dynamic option to make
1143             # all symbols visible in the dynamic symbol table.
1144             hold_ldflags=$LDFLAGS
1145             AC_MSG_CHECKING(for the ld -export-dynamic flag)
1146             LDFLAGS="${LDFLAGS} -Wl,-export-dynamic"
1147             AC_TRY_LINK(, [int i;], found=yes, found=no)
1148             LDFLAGS=$hold_ldflags
1149             AC_MSG_RESULT($found)
1150             if test $found = yes; then
1151                CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -Wl,-export-dynamic"
1152             fi
1153          fi
1154          # Sun randomly tweaked the prototypes in <proc_service.h>
1155          # at one point.
1156          AC_MSG_CHECKING(if <proc_service.h> is old)
1157          AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1158             AC_TRY_COMPILE([
1159                 #include <proc_service.h>
1160                 ps_err_e ps_pdwrite
1161                     (struct ps_prochandle*, psaddr_t, const void*, size_t);
1162             ],, gdb_cv_proc_service_is_old=no,
1163                 gdb_cv_proc_service_is_old=yes)
1164          ])
1165          AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1166          if test $gdb_cv_proc_service_is_old = yes; then
1167             AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1168             [Define if <proc_service.h> on solaris uses int instead of
1169              size_t, and assorted other type changes.])
1170          fi
1171       else
1172          AC_MSG_RESULT(no)
1173       fi
1174       ;;
1175    aix*)
1176       AC_MSG_CHECKING(for AiX thread debugging library)
1177       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1178                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1179                                    [#ifndef PTHDB_VERSION_3
1180                                     #error
1181                                     #endif],
1182                                    gdb_cv_have_aix_thread_debug=yes,
1183                                    gdb_cv_have_aix_thread_debug=no)])
1184       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1185       if test $gdb_cv_have_aix_thread_debug = yes; then
1186          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1187          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1188          CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -lpthdebug"
1189       fi
1190       ;;
1191    esac
1192    AC_SUBST(CONFIG_LDFLAGS)
1193 fi
1194
1195 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1196 dnl other error codes.
1197 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1198    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1199                   gdb_cv_thread_db_h_has_td_notalloc,
1200      AC_TRY_COMPILE(
1201        [#include <thread_db.h>],
1202        [int i = TD_NOTALLOC;],
1203        gdb_cv_thread_db_h_has_td_notalloc=yes,
1204        gdb_cv_thread_db_h_has_td_notalloc=no
1205      )
1206    )
1207    AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1208                   gdb_cv_thread_db_h_has_td_version,
1209      AC_TRY_COMPILE(
1210        [#include <thread_db.h>],
1211        [int i = TD_VERSION;],
1212        gdb_cv_thread_db_h_has_td_version=yes,
1213        gdb_cv_thread_db_h_has_td_version=no
1214      )
1215    )
1216    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1217                   gdb_cv_thread_db_h_has_td_notls,
1218      AC_TRY_COMPILE(
1219        [#include <thread_db.h>],
1220        [int i = TD_NOTLS;],
1221        gdb_cv_thread_db_h_has_td_notls=yes,
1222        gdb_cv_thread_db_h_has_td_notls=no
1223      )
1224    )
1225 fi
1226 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1227   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1228             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1229 fi
1230 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1231   AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1232             [Define if <thread_db.h> has the TD_VERSION error code.])
1233 fi
1234 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1235   AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1236             [Define if <thread_db.h> has the TD_NOTLS error code.])
1237 fi
1238
1239 dnl See if we have a sys/syscall header file that has __NR_tkill.
1240 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1241    AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1242                   gdb_cv_sys_syscall_h_has_tkill,
1243      AC_TRY_COMPILE(
1244        [#include <sys/syscall.h>],
1245        [int i = __NR_tkill;],
1246        gdb_cv_sys_syscall_h_has_tkill=yes,
1247        gdb_cv_sys_syscall_h_has_tkill=no
1248      )
1249    )
1250 fi
1251 dnl See if we can issue tkill syscall.
1252 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then
1253   AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1254 fi
1255
1256 dnl Handle optional features that can be enabled.
1257
1258 AC_ARG_WITH(sysroot,
1259 [  --with-sysroot[=DIR] Search for usr/lib et al within DIR.],
1260 [
1261  case ${with_sysroot} in
1262  yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
1263  *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
1264  esac
1265
1266  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
1267
1268  if test "x$prefix" = xNONE; then
1269   test_prefix=/usr/local
1270  else
1271   test_prefix=$prefix
1272  fi
1273  if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
1274   test_exec_prefix=$test_prefix
1275  else
1276   test_exec_prefix=$exec_prefix
1277  fi
1278  case ${TARGET_SYSTEM_ROOT} in
1279  "${test_prefix}"|"${test_prefix}/"*|\
1280  "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
1281  '${prefix}'|'${prefix}/'*|\
1282  '${exec_prefix}'|'${exec_prefix}/'*)
1283    t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
1284    TARGET_SYSTEM_ROOT_DEFINE="$t"
1285    ;;
1286  esac
1287 ], [
1288  TARGET_SYSTEM_ROOT=
1289  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
1290 ])
1291 AC_SUBST(TARGET_SYSTEM_ROOT)
1292 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
1293
1294 AC_ARG_ENABLE(werror,
1295   [  --enable-werror    treat compile warnings as errors],
1296   [case "${enableval}" in
1297      yes | y) ERROR_ON_WARNING="yes" ;;
1298      no | n)  ERROR_ON_WARNING="no" ;;
1299      *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1300    esac])
1301
1302 # Enable -Werror by default when using gcc
1303 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
1304     ERROR_ON_WARNING=yes
1305 fi
1306
1307 WERROR_CFLAGS=""
1308 if test "${ERROR_ON_WARNING}" = yes ; then
1309     WERROR_CFLAGS="-Werror"
1310 fi
1311
1312 # The entries after -Wno-pointer-sign are disabled warnings which may
1313 # be enabled in the future, which can not currently be used to build
1314 # GDB.
1315 # NOTE: If you change this list, remember to update
1316 # gdb/doc/gdbint.texinfo.
1317 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
1318 -Wformat-nonliteral -Wno-pointer-sign \
1319 -Wno-unused -Wno-switch -Wno-char-subscripts"
1320
1321 AC_ARG_ENABLE(build-warnings,
1322 [  --enable-build-warnings Enable build-time compiler warnings if gcc is used],
1323 [case "${enableval}" in
1324   yes)  ;;
1325   no)   build_warnings="-w";;
1326   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1327         build_warnings="${build_warnings} ${t}";;
1328   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1329         build_warnings="${t} ${build_warnings}";;
1330   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1331 esac
1332 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1333   echo "Setting compiler warning flags = $build_warnings" 6>&1
1334 fi])dnl
1335 AC_ARG_ENABLE(gdb-build-warnings,
1336 [  --enable-gdb-build-warnings Enable GDB specific build-time compiler warnings if gcc is used],
1337 [case "${enableval}" in
1338   yes)  ;;
1339   no)   build_warnings="-w";;
1340   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1341         build_warnings="${build_warnings} ${t}";;
1342   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1343         build_warnings="${t} ${build_warnings}";;
1344   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1345 esac
1346 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1347   echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
1348 fi])dnl
1349 WARN_CFLAGS=""
1350 if test "x${build_warnings}" != x -a "x$GCC" = xyes
1351 then
1352     AC_MSG_CHECKING(compiler warning flags)
1353     # Separate out the -Werror flag as some files just cannot be
1354     # compiled with it enabled.
1355     for w in ${build_warnings}; do
1356         case $w in
1357         -Werr*) WERROR_CFLAGS=-Werror ;;
1358         *) # Check that GCC accepts it
1359             saved_CFLAGS="$CFLAGS"
1360             CFLAGS="$CFLAGS $w"
1361             AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
1362             CFLAGS="$saved_CFLAGS"
1363         esac
1364     done
1365     AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
1366 fi
1367 AC_SUBST(WARN_CFLAGS)
1368 AC_SUBST(WERROR_CFLAGS)
1369
1370 # In the Cygwin environment, we need some additional flags.
1371 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1372 [AC_EGREP_CPP(lose, [
1373 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1374 lose
1375 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1376
1377
1378 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1379 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1380 case ${host} in
1381   *go32* ) SER_HARDWIRE=ser-go32.o ;;
1382   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1383   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1384 esac
1385 AC_SUBST(SER_HARDWIRE)
1386
1387 # libreadline needs libuser32.a in a cygwin environment
1388 WIN32LIBS=
1389 if test x$gdb_cv_os_cygwin = xyes; then
1390     WIN32LIBS="-luser32"
1391     case "${target}" in
1392         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1393         ;;
1394     esac
1395 fi
1396
1397 # The ser-tcp.c module requires sockets.
1398 case ${host} in
1399   *mingw32*)
1400     AC_DEFINE(USE_WIN32API, 1,
1401               [Define if we should use the Windows API, instead of the
1402                POSIX API.  On Windows, we use the Windows API when
1403                building for MinGW, but the POSIX API when building
1404                for Cygwin.])
1405     WIN32LIBS="$WIN32LIBS -lws2_32"
1406     ;;
1407 esac
1408 AC_SUBST(WIN32LIBS)
1409
1410 # Add ELF support to GDB, but only if BFD includes ELF support.
1411 OLD_CFLAGS=$CFLAGS
1412 OLD_LDFLAGS=$LDFLAGS
1413 OLD_LIBS=$LIBS
1414 CFLAGS="$CFLAGS -I${srcdir}/../include -I../bfd -I${srcdir}/../bfd"
1415 LDFLAGS="$LDFLAGS -L../bfd -L../libiberty"
1416 intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
1417 LIBS="$LIBS -lbfd -liberty $intl"
1418 AC_CACHE_CHECK([for ELF support in BFD], gdb_cv_var_elf,
1419 [AC_TRY_LINK(
1420 [#include <stdlib.h>
1421 #include "bfd.h"
1422 #include "elf-bfd.h"
1423 ],
1424 [bfd *abfd = NULL; bfd_get_elf_phdr_upper_bound (abfd); ],
1425 gdb_cv_var_elf=yes, gdb_cv_var_elf=no)])
1426 if test $gdb_cv_var_elf = yes; then
1427   CONFIG_OBS="$CONFIG_OBS elfread.o"
1428   AC_DEFINE(HAVE_ELF, 1,
1429             [Define if ELF support should be included.])
1430 fi
1431 CFLAGS=$OLD_CFLAGS
1432 LDFLAGS=$OLD_LDFLAGS
1433 LIBS=$OLD_LIBS
1434
1435 # Add any host-specific objects to GDB.
1436 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1437
1438 LIBGUI="../libgui/src/libgui.a"
1439 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1440 AC_SUBST(LIBGUI)
1441 AC_SUBST(GUI_CFLAGS_X)
1442
1443 WIN32LDAPP=
1444 AC_SUBST(WIN32LIBS)
1445 AC_SUBST(WIN32LDAPP)
1446
1447 case "${host}" in
1448 *-*-cygwin*)
1449     configdir="win"
1450     ;;
1451 *)
1452     configdir="unix"
1453     ;;
1454 esac
1455
1456 GDBTKLIBS=
1457 if test "${enable_gdbtk}" = "yes"; then
1458
1459     # Gdbtk must have an absolute path to srcdir in order to run
1460     # properly when not installed.
1461     here=`pwd`
1462     cd ${srcdir}
1463     GDBTK_SRC_DIR=`pwd`
1464     cd $here
1465
1466     CY_AC_PATH_TCLCONFIG
1467     if test -z "${no_tcl}"; then
1468         CY_AC_LOAD_TCLCONFIG
1469         CY_AC_PATH_TKCONFIG
1470
1471         # now look for Tcl library stuff
1472
1473         tcldir="../tcl/${configdir}/"
1474
1475         TCL_DEPS="${tcldir}${TCL_LIB_FILE}"
1476
1477         # If $no_tk is nonempty, then we can't do Tk, and there is no
1478         # point to doing Tcl.
1479         if test -z "${no_tk}"; then
1480            CY_AC_LOAD_TKCONFIG
1481            CY_AC_PATH_TCLH
1482            CY_AC_PATH_TKH
1483            CY_AC_PATH_ITCLH
1484            CY_AC_PATH_ITKH
1485
1486
1487            # now look for Tk library stuff
1488
1489            tkdir="../tk/${configdir}/"
1490
1491            TK_DEPS="${tkdir}${TK_LIB_FILE}"
1492
1493            # now look for Itcl library stuff
1494
1495            CY_AC_PATH_ITCLCONFIG
1496            if test -z "${no_itcl}"; then
1497              CY_AC_LOAD_ITCLCONFIG
1498
1499              ITCLLIB="${ITCL_BUILD_LIB_SPEC}"
1500              ITCL_DEPS="${ITCL_LIB_FULL_PATH}"
1501            fi
1502
1503
1504            # now look for Itk library stuff
1505            CY_AC_PATH_ITKCONFIG
1506            if test -z "${no_itcl}"; then
1507              CY_AC_LOAD_ITKCONFIG
1508
1509              ITKLIB="${ITK_BUILD_LIB_SPEC}"
1510              ITK_DEPS="${ITK_LIB_FULL_PATH}"
1511            fi
1512
1513            ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
1514
1515            # Include some libraries that Tcl and Tk want.
1516            TCL_LIBS='$(LIBGUI) $(ITCL) $(ITK) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
1517            # Yes, the ordering seems wrong here.  But it isn't.
1518            # TK_LIBS is the list of libraries that need to be linked
1519            # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
1520            # were in LIBS then any link tests after this point would
1521            # try to include things like `$(LIBGUI)', which wouldn't work.
1522            GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
1523
1524            CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
1525            CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
1526            CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
1527            CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
1528            CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
1529            CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
1530            CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
1531
1532            if test x$gdb_cv_os_cygwin = xyes; then
1533               WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
1534               WIN32LDAPP="-Wl,--subsystem,console"
1535               CONFIG_OBS="${CONFIG_OBS} gdbres.o"
1536            fi
1537         fi
1538     fi
1539
1540     AC_CONFIG_SUBDIRS(gdbtk)
1541 fi
1542
1543 AC_SUBST(X_CFLAGS)
1544 AC_SUBST(X_LDFLAGS)
1545 AC_SUBST(X_LIBS)
1546 AC_SUBST(TCL_DEPS)
1547 AC_SUBST(TK_DEPS)
1548 AC_SUBST(ITCLLIB)
1549 AC_SUBST(ITCL_DEPS)
1550 AC_SUBST(ITKLIB)
1551 AC_SUBST(ITK_DEPS)
1552 AC_SUBST(GDBTKLIBS)
1553 AC_SUBST(GDBTK_CFLAGS)
1554 AC_SUBST(GDBTK_SRC_DIR)
1555
1556 AC_PATH_X
1557
1558 # Check whether we should enable the TUI, but only do so if we really
1559 # can.
1560 if test x"$enable_tui" = xyes; then
1561   if test -d $srcdir/tui; then
1562     if test "$ac_cv_search_waddstr" != no; then
1563       CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
1564       CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
1565       CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
1566       CONFIG_INITS="$CONFIG_INITS \$(SUBDIR_TUI_INITS)"
1567       ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
1568       CONFIG_ALL="${CONFIG_ALL} all-tui"
1569       CONFIG_CLEAN="${CONFIG_CLEAN} clean-tui"
1570       CONFIG_INSTALL="${CONFIG_INSTALL} install-tui"
1571       CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-tui"
1572     else
1573       AC_MSG_WARN([no enhanced curses library found; disabling TUI])
1574     fi
1575   fi
1576 fi
1577
1578 # Unlike the sim directory, whether a simulator is linked is controlled by
1579 # presence of a gdb_sim definition in the target configure.tgt entry.
1580 # This code just checks for a few cases where we'd like to ignore those
1581 # definitions, even when they're present in the '.mt' file.  These cases
1582 # are when --disable-sim is specified, or if the simulator directory is
1583 # not part of the source tree.
1584 #
1585 AC_ARG_ENABLE(sim,
1586 [  --enable-sim            Link gdb with simulator],
1587 [echo "enable_sim = $enable_sim";
1588  echo "enableval = ${enableval}";
1589  case "${enableval}" in
1590   yes) ignore_sim=false ;;
1591   no)  ignore_sim=true ;;
1592   *)   ignore_sim=false ;;
1593  esac],
1594 [ignore_sim=false])
1595
1596 if test ! -d "${srcdir}/../sim"; then
1597   ignore_sim=true
1598 fi
1599
1600 SIM=
1601 SIM_OBS=
1602 if test "${ignore_sim}" = "false"; then
1603   if test x"${gdb_sim}" != x ; then
1604     SIM="${gdb_sim}"
1605     SIM_OBS="remote-sim.o"
1606     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
1607   fi
1608 fi
1609 AC_SUBST(SIM)
1610 AC_SUBST(SIM_OBS)
1611
1612 AC_SUBST(ENABLE_CFLAGS)
1613 AC_SUBST(PROFILE_CFLAGS)
1614
1615 AC_SUBST(CONFIG_OBS)
1616 AC_SUBST(CONFIG_DEPS)
1617 AC_SUBST(CONFIG_SRCS)
1618 AC_SUBST(CONFIG_ALL)
1619 AC_SUBST(CONFIG_CLEAN)
1620 AC_SUBST(CONFIG_INSTALL)
1621 AC_SUBST(CONFIG_UNINSTALL)
1622
1623 # List of host floatformats.
1624 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
1625 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
1626 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
1627
1628 # target_subdir is used by the testsuite to find the target libraries.
1629 target_subdir=
1630 if test "${host}" != "${target}"; then
1631     target_subdir="${target_alias}/"
1632 fi
1633 AC_SUBST(target_subdir)
1634
1635 frags=
1636 if test "${gdb_native}" = "yes"; then
1637   host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
1638   if test ! -f ${host_makefile_frag}; then
1639     AC_MSG_ERROR("*** Gdb does not support native target ${host}")
1640   fi
1641   frags="$frags $host_makefile_frag"
1642 else
1643   host_makefile_frag=/dev/null
1644 fi
1645
1646 AC_SUBST_FILE(host_makefile_frag)
1647 AC_SUBST(frags)
1648
1649 changequote(,)dnl
1650 if test "${gdb_native}" = "yes"; then
1651 # We pick this up from the host configuration file (.mh) because we
1652 # do not have a native configuration Makefile fragment.
1653 nativefile=`sed -n '
1654 s/NAT_FILE[     ]*=[    ]*\([^  ]*\)/\1/p
1655 ' ${host_makefile_frag}`
1656 fi
1657 changequote([,])
1658
1659 if test x"${gdb_osabi}" != x ; then
1660     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
1661                        [Define to the default OS ABI for this configuration.])
1662 fi
1663
1664 # Enable multi-ice-gdb-server.
1665 AC_ARG_ENABLE(multi-ice,
1666 [  --enable-multi-ice      build the multi-ice-gdb-server],
1667   [case $enableval in
1668     yes | no)
1669       ;;
1670     *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
1671   esac])
1672 if test "x$enable_multi_ice" = xyes; then
1673    AC_CONFIG_SUBDIRS(multi-ice)
1674 fi
1675
1676 # We only build gdbserver automatically in a native configuration.
1677 if test "$gdb_native" = "yes"; then
1678   AC_MSG_CHECKING(whether gdbserver is supported on this host)
1679   if test "x$build_gdbserver" = xyes; then
1680     AC_MSG_RESULT(yes)
1681     AC_CONFIG_SUBDIRS(gdbserver)
1682   else
1683     AC_MSG_RESULT(no)
1684   fi
1685 fi
1686
1687 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
1688 # to an empty version.
1689
1690 files=
1691 links=
1692
1693 rm -f nm.h
1694 nm_h=""
1695 if test "${nativefile}" != ""; then
1696     nm_h=nm.h
1697     case "${nativefile}" in
1698       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
1699       * ) GDB_NM_FILE="${nativefile}"
1700     esac
1701     files="${files} ${GDB_NM_FILE}"
1702     links="${links} nm.h"
1703     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
1704 fi
1705 AC_SUBST(nm_h)
1706
1707 AC_LINK_FILES($files, $links)
1708
1709 dnl Check for exe extension set on certain hosts (e.g. Win32)
1710 AC_EXEEXT
1711
1712 dnl  Detect the character set used by this host.
1713
1714 dnl  At the moment, we just assume it's ISO-8859-1 (which is a
1715 dnl  superset of ASCII containing the characters needed for French,
1716 dnl  German, Spanish, Italian, and possibly others), but if were
1717 dnl  *were* to support any host character sets other than ISO-8859-1,
1718 dnl  here's where we'd detect it.
1719 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "ISO-8859-1",
1720           [Define to be a string naming the default host character set.])
1721
1722 AM_ICONV
1723
1724 AC_OUTPUT(Makefile .gdbinit:gdbinit.in,
1725 [
1726 dnl Autoconf doesn't provide a mechanism for modifying definitions
1727 dnl provided by makefile fragments.
1728 dnl
1729
1730 changequote(,)dnl
1731 sed -e '/^NAT_FILE[     ]*=/s,^NAT_FILE[        ]*=[    ]*,&config/'"${gdb_host_cpu}"'/,' <Makefile >Makefile.tmp
1732 mv -f Makefile.tmp Makefile
1733 changequote([,])dnl
1734
1735
1736 case x$CONFIG_HEADERS in
1737 xconfig.h:config.in)
1738 echo > stamp-h ;;
1739 esac
1740 ],
1741 [
1742 gdb_host_cpu=$gdb_host_cpu
1743 nativefile=$nativefile
1744 ])
1745
1746 exit 0