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, 2007, 2008, 2009
   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 gl_EARLY
  33 AM_PROG_CC_STDC
  34
  35 AC_CONFIG_AUX_DIR(..)
  36 AC_CANONICAL_SYSTEM
  37
  38 # Dependency checking.
  39 ZW_CREATE_DEPDIR
  40 ZW_PROG_COMPILER_DEPENDENCIES([CC])
  41
  42 # Check for the 'make' the user wants to use.
  43 AC_CHECK_PROGS(MAKE, make)
  44 MAKE_IS_GNU=
  45 case "`$MAKE --version 2>&1 | sed 1q`" in
  46   *GNU*)
  47     MAKE_IS_GNU=yes
  48     ;;
  49 esac
  50 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
  51 AC_PROG_MAKE_SET
  52
  53 dnl List of object files and targets accumulated by configure.
  54
  55 CONFIG_OBS=
  56 CONFIG_DEPS=
  57 CONFIG_SRCS=
  58 ENABLE_CFLAGS=
  59
  60 CONFIG_ALL=
  61 CONFIG_CLEAN=
  62 CONFIG_INSTALL=
  63 CONFIG_UNINSTALL=
  64
  65 dnl Set up for gettext.
  66 ZW_GNU_GETTEXT_SISTER_DIR
  67
  68 localedir='${datadir}/locale'
  69 AC_SUBST(localedir)
  70
  71 if test x"$USE_NLS" = xyes; then
  72    CONFIG_ALL="$CONFIG_ALL all-po"
  73    CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
  74    CONFIG_INSTALL="$CONFIG_INSTALL install-po"
  75    CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
  76 fi
  77
  78 gl_INIT
  79
  80 # For Makefile dependencies.
  81 GNULIB_STDINT_H=
  82 if test x"$STDINT_H" != x; then
  83   GNULIB_STDINT_H=gnulib/$STDINT_H
  84 fi
  85 AC_SUBST(GNULIB_STDINT_H)
  86
  87 PACKAGE=gdb
  88 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
  89 AC_SUBST(PACKAGE)
  90
  91 # GDB does not use automake, but gnulib does.  This line lets us
  92 # generate its Makefile.in.
  93 AM_INIT_AUTOMAKE(gdb, UNUSED-VERSION, [no-define])
  94
  95 debugdir=${libdir}/debug
  96
  97 AC_ARG_WITH(separate-debug-dir,
  98 [  --with-separate-debug-dir=path   Look for global separate debug info in this path [LIBDIR/debug]],
  99 [debugdir="${withval}"])
 100
 101 AC_DEFINE_DIR(DEBUGDIR, debugdir,
 102               [Global directory for separate debug files. ])
 103 #AC_DEFINE_UNQUOTED(DEBUGDIR, "$debugdir"),
 104
 105 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
 106   if test "x$prefix" = xNONE; then
 107     test_prefix=/usr/local
 108   else
 109     test_prefix=$prefix
 110   fi
 111 else
 112   test_prefix=$exec_prefix
 113 fi
 114 case ${debugdir} in
 115 "${test_prefix}"|"${test_prefix}/"*|\
 116 '${exec_prefix}'|'${exec_prefix}/'*)
 117   AC_DEFINE(DEBUGDIR_RELOCATABLE, 1, [Define if the debug directory should be relocated when GDB is moved.])
 118   ;;
 119 esac
 120
 121 AC_CONFIG_SUBDIRS(doc testsuite)
 122
 123 # Check whether to support alternative target configurations
 124 AC_ARG_ENABLE(targets,
 125 [  --enable-targets        alternative target configurations],
 126 [case "${enableval}" in
 127   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
 128             ;;
 129   no)       enable_targets= ;;
 130   *)        enable_targets=$enableval ;;
 131 esac])
 132
 133 # Check whether to enable 64-bit support on 32-bit hosts
 134 AC_ARG_ENABLE(64-bit-bfd,
 135 [  --enable-64-bit-bfd     64-bit support (on hosts with narrower word sizes)],
 136 [case "${enableval}" in
 137   yes)  want64=true  ;;
 138   no)   want64=false ;;
 139   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
 140 esac],[want64=false])dnl
 141
 142 # Provide defaults for some variables set by the per-host and per-target
 143 # configuration.
 144 gdb_host_obs=posix-hdep.o
 145
 146 if test "${target}" = "${host}"; then
 147   gdb_native=yes
 148 else
 149   gdb_native=no
 150 fi
 151
 152 . $srcdir/configure.host
 153
 154 # Accumulate some settings from configure.tgt over all enabled targets
 155
 156 TARGET_OBS=
 157 all_targets=
 158
 159 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 160 do
 161   if test "$targ_alias" = "all"; then
 162     all_targets=true
 163   else
 164     # Canonicalize the secondary target names.
 165     result=`$ac_config_sub $targ_alias 2>/dev/null`
 166     if test -n "$result"; then
 167         targ=$result
 168     else
 169         targ=$targ_alias
 170     fi
 171
 172     . ${srcdir}/configure.tgt
 173
 174     # Target-specific object files
 175     for i in ${gdb_target_obs}; do
 176         case " $TARGET_OBS " in
 177         *" ${i} "*) ;;
 178         *)
 179           TARGET_OBS="$TARGET_OBS ${i}"
 180           ;;
 181         esac
 182     done
 183
 184     # Check whether this target needs 64-bit CORE_ADDR
 185     if test x${want64} = xfalse; then
 186       . ${srcdir}/../bfd/config.bfd
 187     fi
 188   fi
 189 done
 190
 191 if test x${all_targets} = xtrue; then
 192
 193   # We want all 64-bit targets if we either:
 194   #  - run on a 64-bit host  or
 195   #  - already require 64-bit support for some other target  or
 196   #  - the --enable-64-bit-bfd option was supplied
 197   # Otherwise we only support all 32-bit targets.
 198   #
 199   # NOTE: This test must be in sync with the corresponding
 200   #       tests in BFD!
 201
 202   if test x${want64} = xfalse; then
 203     AC_CHECK_SIZEOF(long)
 204     if test "x${ac_cv_sizeof_long}" = "x8"; then
 205       want64=true
 206     fi
 207   fi
 208   if test x${want64} = xtrue; then
 209     TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
 210   else
 211     TARGET_OBS='$(ALL_TARGET_OBS)'
 212   fi
 213 fi
 214
 215 AC_SUBST(TARGET_OBS)
 216
 217 # For other settings, only the main target counts.
 218 gdb_sim=
 219 gdb_osabi=
 220 build_gdbserver=
 221 targ=$target; . ${srcdir}/configure.tgt
 222
 223 # Fetch the default architecture and default target vector from BFD.
 224 targ=$target; . $srcdir/../bfd/config.bfd
 225
 226 # We only want the first architecture, so strip off the others if
 227 # there is more than one.
 228 targ_archs=`echo $targ_archs | sed 's/ .*//'`
 229
 230 if test "x$targ_archs" != x; then
 231   AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
 232     [Define to BFD's default architecture. ])
 233 fi
 234 if test "x$targ_defvec" != x; then
 235   AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
 236     [Define to BFD's default target vector. ])
 237 fi
 238
 239 # The CLI cannot be disabled yet, but may be in the future.
 240
 241 # Enable CLI.
 242 AC_ARG_ENABLE(gdbcli,
 243 [  --disable-gdbcli        disable command-line interface (CLI)],
 244   [case $enableval in
 245     yes)
 246       ;;
 247     no)
 248       AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
 249     *)
 250       AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
 251   esac],
 252   [enable_gdbcli=yes])
 253 if test x"$enable_gdbcli" = xyes; then
 254   if test -d $srcdir/cli; then
 255     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
 256     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
 257     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
 258     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
 259   fi
 260 fi
 261
 262 # Enable MI.
 263 AC_ARG_ENABLE(gdbmi,
 264 [  --disable-gdbmi         disable machine-interface (MI)],
 265   [case $enableval in
 266     yes | no)
 267       ;;
 268     *)
 269       AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
 270   esac],
 271   [enable_gdbmi=yes])
 272 if test x"$enable_gdbmi" = xyes; then
 273   if test -d $srcdir/mi; then
 274     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
 275     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
 276     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
 277     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
 278   fi
 279 fi
 280
 281 # Enable TUI.
 282 AC_ARG_ENABLE(tui,
 283 [  --enable-tui            enable full-screen terminal user interface (TUI)],
 284   [case $enableval in
 285     yes | no | auto)
 286       ;;
 287     *)
 288       AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
 289   esac],enable_tui=auto)
 290
 291 # Enable gdbtk.
 292 AC_ARG_ENABLE(gdbtk,
 293 [  --enable-gdbtk          enable gdbtk graphical user interface (GUI)],
 294   [case $enableval in
 295     yes | no)
 296       ;;
 297     *)
 298       AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
 299   esac],
 300   [if test -d $srcdir/gdbtk; then
 301     enable_gdbtk=yes
 302   else
 303     enable_gdbtk=no
 304   fi])
 305 # We unconditionally disable gdbtk tests on selected platforms.
 306 case $host_os in
 307   go32* | windows*)
 308     AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
 309     enable_gdbtk=no ;;
 310 esac
 311
 312 # Libunwind support.
 313 AC_ARG_WITH(libunwind,
 314 [  --with-libunwind            Use libunwind frame unwinding support],
 315 [case "${withval}" in
 316   yes)  enable_libunwind=yes ;;
 317   no)   enable_libunwind=no ;;
 318   *)    AC_MSG_ERROR(bad value ${withval} for GDB with-libunwind option) ;;
 319 esac],[
 320   AC_CHECK_HEADERS(libunwind.h libunwind-ia64.h)
 321   if test x"$ac_cv_header_libunwind_h" = xyes -a x"$ac_cv_header_libunwind_ia64_h" = xyes; then
 322     enable_libunwind=yes;
 323   fi
 324 ])
 325
 326 if test x"$enable_libunwind" = xyes; then
 327   AC_CHECK_HEADERS(libunwind.h libunwind-ia64.h)
 328   AC_DEFINE(HAVE_LIBUNWIND, 1, [Define if libunwind library is being used.])
 329   CONFIG_OBS="$CONFIG_OBS libunwind-frame.o"
 330   CONFIG_DEPS="$CONFIG_DEPS libunwind-frame.o"
 331   CONFIG_SRCS="$CONFIG_SRCS libunwind-frame.c"
 332 fi
 333
 334 # Profiling support.
 335 AC_ARG_ENABLE(profiling,
 336 [  --enable-profiling      enable profiling of GDB],
 337   [case $enableval in
 338     yes | no)
 339       ;;
 340     *)
 341       AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
 342   esac],
 343  [enable_profiling=no])
 344
 345 AC_CHECK_FUNCS(monstartup _mcleanup)
 346 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
 347 [AC_TRY_LINK(
 348 [#include <stdlib.h>
 349 extern char _etext;
 350 ],
 351 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
 352 if test $ac_cv_var__etext = yes; then
 353   AC_DEFINE(HAVE__ETEXT, 1,
 354             [Define to 1 if your system has the _etext variable. ])
 355 fi
 356 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
 357 [AC_TRY_LINK(
 358 [#include <stdlib.h>
 359 extern char etext;
 360 ],
 361 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
 362 if test $ac_cv_var_etext = yes; then
 363   AC_DEFINE(HAVE_ETEXT, 1,
 364             [Define to 1 if your system has the etext variable. ])
 365 fi
 366 if test "$enable_profiling" = yes ; then
 367   if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
 368     AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
 369   fi
 370   PROFILE_CFLAGS=-pg
 371   OLD_CFLAGS="$CFLAGS"
 372   CFLAGS="$CFLAGS $PROFILE_CFLAGS"
 373
 374   AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
 375     [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
 376      ac_cv_cc_supports_pg=no)])
 377
 378   if test $ac_cv_cc_supports_pg = no; then
 379     AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
 380   fi
 381
 382   CFLAGS="$OLD_CFLAGS"
 383 fi
 384
 385 ACX_PKGVERSION([GDB])
 386 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
 387 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
 388 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
 389
 390 # --------------------- #
 391 # Checks for programs.  #
 392 # --------------------- #
 393
 394 AC_PROG_AWK
 395 AC_PROG_INSTALL
 396 AC_PROG_LN_S
 397 AC_PROG_RANLIB
 398 AC_PROG_YACC
 399
 400 AC_CHECK_TOOL(AR, ar)
 401 AC_CHECK_TOOL(DLLTOOL, dlltool)
 402 AC_CHECK_TOOL(WINDRES, windres)
 403
 404 # Needed for GNU/Hurd.
 405 AC_CHECK_TOOL(MIG, mig)
 406
 407 # ---------------------- #
 408 # Checks for libraries.  #
 409 # ---------------------- #
 410
 411 # We might need to link with -lm; most simulators need it.
 412 AC_CHECK_LIB(m, main)
 413
 414 # We need to link with -lw to get `wctype' on Solaris before Solaris
 415 # 2.6.  Solaris 2.6 and beyond have this function in libc, and have a
 416 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
 417 # is known to have this problem).  Therefore we avoid libw if we can.
 418 AC_CHECK_FUNC(wctype, [],
 419   [AC_CHECK_LIB(w, wctype)])
 420
 421 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 422 AC_SEARCH_LIBS(gethostbyname, nsl)
 423
 424 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 425 AC_SEARCH_LIBS(socketpair, socket)
 426
 427 # Link in zlib if we can.  This allows us to read compressed debug sections.
 428 AC_SEARCH_LIBS(zlibVersion, z, [AC_CHECK_HEADERS(zlib.h)])
 429
 430 # On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).
 431 AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl])
 432
 433 AM_ICONV
 434
 435 # On alpha-osf, it appears that libtermcap and libcurses are not compatible.
 436 # There is a very specific comment in /usr/include/curses.h explaining that
 437 # termcap routines built into libcurses must not be used.
 438 #
 439 # The symptoms we observed so far is GDB unexpectedly changing
 440 # the terminal settings when tgetent is called - this is particularly
 441 # visible as the output is missing carriage returns, and so rapidly
 442 # becomes very hard to read.
 443 #
 444 # The readline configure script has already decided that libtermcap
 445 # was enough for its purposes, and so decided to build readline using
 446 # libtermcap.  Since the TUI mode requires curses, building GDB with
 447 # TUI enabled results in both libraries to be used at the same time,
 448 # which is not allowed.  This basically means that GDB with TUI is
 449 # broken on alpha-osf.
 450
 451 case $host_os in
 452   alpha*-*-osf* )
 453     if "$enable_tui" = "yes"; then
 454       AC_MSG_ERROR([Building GDB with TUI mode is not supported on this host])
 455     fi
 456     if "$enable_tui" = "auto"; then
 457       enable_tui=no
 458     fi
 459     ;;
 460 esac
 461
 462 # Check whether we should enable the TUI, but only do so if we really
 463 # can.
 464 if test x"$enable_tui" != xno; then
 465   if test -d $srcdir/tui; then
 466     # For the TUI, we need enhanced curses functionality.
 467     #
 468     # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
 469     # curses library because the latter might not provide all the
 470     # functionality we need.  However, this leads to problems on systems
 471     # where the linker searches /usr/local/lib, but the compiler doesn't
 472     # search /usr/local/include, if ncurses is installed in /usr/local.  A
 473     # default installation of ncurses on alpha*-dec-osf* will lead to such
 474     # a situation.
 475     AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
 476
 477     if test "$ac_cv_search_waddstr" != no; then
 478       CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
 479       CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
 480       CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
 481       ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
 482       CONFIG_ALL="${CONFIG_ALL} all-tui"
 483       CONFIG_CLEAN="${CONFIG_CLEAN} clean-tui"
 484       CONFIG_INSTALL="${CONFIG_INSTALL} install-tui"
 485       CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-tui"
 486     else
 487       if test x"$enable_tui" = xyes; then
 488         AC_MSG_ERROR([no enhanced curses library found; disable TUI])
 489       else
 490         AC_MSG_WARN([no enhanced curses library found; disabling TUI])
 491       fi
 492     fi
 493   fi
 494 fi
 495
 496 # Since GDB uses Readline, we need termcap functionality.  In many
 497 # cases this will be provided by the curses library, but some systems
 498 # have a seperate termcap library, or no curses library at all.
 499
 500 case $host_os in
 501   cygwin*)
 502     if test -d $srcdir/libtermcap; then
 503       LIBS="../libtermcap/libtermcap.a $LIBS"
 504       ac_cv_search_tgetent="../libtermcap/libtermcap.a"
 505     fi ;;
 506   go32* | *djgpp*)
 507     ac_cv_search_tgetent="none required"
 508     ;;
 509   *mingw32*)
 510     ac_cv_search_tgetent="none required"
 511     CONFIG_OBS="$CONFIG_OBS windows-termcap.o"
 512     ;;
 513 esac
 514
 515 # These are the libraries checked by Readline.
 516 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
 517
 518 if test "$ac_cv_search_tgetent" = no; then
 519   AC_MSG_ERROR([no termcap library found])
 520 fi
 521
 522 AC_ARG_WITH([system-readline],
 523   [AS_HELP_STRING([--with-system-readline],
 524                   [use installed readline library])])
 525
 526 if test "$with_system_readline" = yes; then
 527   READLINE=-lreadline
 528   READLINE_DEPS=
 529   READLINE_CFLAGS=
 530 else
 531   READLINE='$(READLINE_DIR)/libreadline.a'
 532   READLINE_DEPS='$(READLINE)'
 533   READLINE_CFLAGS='-I$(READLINE_SRC)/..'
 534 fi
 535 AC_SUBST(READLINE)
 536 AC_SUBST(READLINE_DEPS)
 537 AC_SUBST(READLINE_CFLAGS)
 538
 539 AC_ARG_WITH(expat,
 540   AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
 541   [], [with_expat=auto])
 542 AC_MSG_CHECKING([whether to use expat])
 543 AC_MSG_RESULT([$with_expat])
 544
 545 if test "${with_expat}" = no; then
 546   AC_MSG_WARN([expat support disabled; some features may be unavailable.])
 547   HAVE_LIBEXPAT=no
 548 else
 549   AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
 550                         [XML_Parser p = XML_ParserCreate (0);])
 551   if test "$HAVE_LIBEXPAT" != yes; then
 552     if test "$with_expat" = yes; then
 553       AC_MSG_ERROR([expat is missing or unusable])
 554     else
 555       AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
 556     fi
 557   else
 558     save_LIBS=$LIBS
 559     LIBS="$LIBS $LIBEXPAT"
 560     AC_CHECK_FUNCS(XML_StopParser)
 561     LIBS=$save_LIBS
 562   fi
 563 fi
 564
 565 dnl Utility to simplify finding libpython.
 566 AC_DEFUN([AC_TRY_LIBPYTHON],
 567 [
 568   version=$1
 569   define([have_libpython_var],$2)
 570   define([VERSION],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],
 571                                   [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])
 572   [HAVE_LIB]VERSION=no
 573   AC_MSG_CHECKING([for ${version}])
 574   save_LIBS=$LIBS
 575   LIBS="$LIBS -l${version}"
 576   AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "${version}/Python.h"]],
 577                                  [[Py_Initialize ();]]),
 578                  [[HAVE_LIB]VERSION=yes
 579                   have_libpython_var=yes],
 580                  [LIBS=$save_LIBS])
 581   AC_MSG_RESULT([$[HAVE_LIB]VERSION])
 582 ])
 583
 584 AC_ARG_WITH(python,
 585   AS_HELP_STRING([--with-python], [include python support (auto/yes/no/<path>)]),
 586   [], [with_python=auto])
 587 AC_MSG_CHECKING([whether to use python])
 588 AC_MSG_RESULT([$with_python])
 589
 590 if test "${with_python}" = no; then
 591   AC_MSG_WARN([python support disabled; some features may be unavailable.])
 592   have_libpython=no
 593 else
 594   case "${with_python}" in
 595   yes | auto)
 596     # Leave as empty, use defaults.
 597     python_includes=
 598     python_libs=
 599     ;;
 600   /*)
 601     python_includes="-I${with_python}/include"
 602     python_libs="-L${with_python}/lib"
 603     ;;
 604   *)
 605     AC_ERROR(invalid value for --with-python)
 606     ;;
 607   esac
 608
 609   save_CPPFLAGS=$CPPFLAGS
 610   CPPFLAGS="$CPPFLAGS ${python_includes}"
 611   save_LIBS=$LIBS
 612   LIBS="$LIBS ${python_libs}"
 613   have_libpython=no
 614   if test "${have_libpython}" = no; then
 615     AC_TRY_LIBPYTHON(python2.6, have_libpython)
 616     if test "${HAVE_LIBPYTHON2_6}" = yes; then
 617       AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
 618     fi
 619   fi
 620   if test ${have_libpython} = no; then
 621     AC_TRY_LIBPYTHON(python2.5, have_libpython)
 622     if test "${HAVE_LIBPYTHON2_5}" = yes; then
 623       AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
 624     fi
 625   fi
 626   if test ${have_libpython} = no; then
 627     AC_TRY_LIBPYTHON(python2.4, have_libpython)
 628     if test "${HAVE_LIBPYTHON2_4}" = yes; then
 629       AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
 630     fi
 631   fi
 632   if test ${have_libpython} = no; then
 633     case "${with_python}" in
 634     yes)
 635       AC_MSG_ERROR([python is missing or unusable])
 636       ;;
 637     auto)
 638       AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
 639       ;;
 640     *)
 641       AC_MSG_ERROR([no usable python found at ${with_python}])
 642       ;;
 643     esac
 644     CPPFLAGS=$save_CPPFLAGS
 645     LIBS=$save_LIBS
 646   fi
 647 fi
 648
 649 if test "${have_libpython}" = yes; then
 650   AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
 651   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
 652   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
 653   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
 654   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
 655
 656   # Flags needed to compile Python code (taken from python-config --cflags).
 657   # We cannot call python-config directly because it will output whatever was
 658   # used when compiling the Python interpreter itself, including flags which
 659   # would make the python-related objects be compiled differently from the
 660   # rest of GDB (e.g., -O2 and -fPIC).
 661   if test "${GCC}" = yes; then
 662     tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
 663   fi
 664
 665   if test "x${tentative_python_cflags}" != x; then
 666     AC_MSG_CHECKING(compiler flags for python code)
 667     for flag in ${tentative_python_cflags}; do
 668       # Check that the compiler accepts it
 669       saved_CFLAGS="$CFLAGS"
 670       CFLAGS="$CFLAGS $flag"
 671       AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
 672       CFLAGS="$saved_CFLAGS"
 673     done
 674     AC_MSG_RESULT(${PYTHON_CFLAGS})
 675   fi
 676 else
 677   # Even if Python support is not compiled in, we need to have these files
 678   # included in order to recognize the GDB command "python".
 679   CONFIG_OBS="$CONFIG_OBS python.o python-value.o"
 680   CONFIG_SRCS="$CONFIG_SRCS python/python.c python/python-value.c"
 681 fi
 682 AC_SUBST(PYTHON_CFLAGS)
 683
 684 # ------------------------- #
 685 # Checks for header files.  #
 686 # ------------------------- #
 687
 688 AC_HEADER_DIRENT
 689 AC_HEADER_STAT
 690 AC_HEADER_STDC
 691 # elf_hp.h is for HP/UX 64-bit shared library support.
 692 # FIXME: kettenis/20030102: In most cases we include these (ctype.h, time.h)
 693 # unconditionally, so what's the point in checking these?
 694 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
 695                   thread_db.h gnu/libc-version.h signal.h stddef.h \
 696                   stdlib.h string.h memory.h strings.h sys/fault.h \
 697                   sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
 698                   sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
 699                   sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
 700                   sys/types.h sys/wait.h wait.h termios.h termio.h \
 701                   sgtty.h unistd.h elf_hp.h ctype.h time.h locale.h])
 702 AC_CHECK_HEADERS(link.h, [], [],
 703 [#if HAVE_SYS_TYPES_H
 704 # include <sys/types.h>
 705 #endif
 706 #if HAVE_NLIST_H
 707 # include <nlist.h>
 708 #endif
 709 ])
 710 AC_CHECK_HEADERS(sys/proc.h, [], [],
 711 [#if HAVE_SYS_PARAM_H
 712 # include <sys/param.h>
 713 #endif
 714 ])
 715 AC_CHECK_HEADERS(sys/user.h, [], [],
 716 [#if HAVE_SYS_PARAM_H
 717 # include <sys/param.h>
 718 #endif
 719 ])
 720
 721 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
 722 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
 723 # think that we don't have <curses.h> if we're using GCC.
 724 case $host_os in
 725   solaris2.[[789]])
 726     if test "$GCC" = yes; then
 727       AC_DEFINE(_MSE_INT_H, 1,
 728         [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
 729    Solaris 2.[789] when using GCC. ])
 730     fi ;;
 731 esac
 732 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
 733 AC_CHECK_HEADERS(term.h, [], [],
 734 [#if HAVE_CURSES_H
 735 # include <curses.h>
 736 #endif
 737 ])
 738
 739 # ------------------------- #
 740 # Checks for declarations.  #
 741 # ------------------------- #
 742
 743 AC_CHECK_DECLS([free, malloc, realloc, strerror, strstr, getopt,
 744                 snprintf, vsnprintf])
 745 AM_LC_MESSAGES
 746
 747 # ----------------------- #
 748 # Checks for structures.  #
 749 # ----------------------- #
 750
 751 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
 752
 753 # ------------------ #
 754 # Checks for types.  #
 755 # ------------------ #
 756
 757 AC_TYPE_SIGNAL
 758 AC_CHECK_TYPES(socklen_t, [], [],
 759 [#include <sys/types.h>
 760 #include <sys/socket.h>
 761 ])
 762
 763 # ------------------------------------- #
 764 # Checks for compiler characteristics.  #
 765 # ------------------------------------- #
 766
 767 AC_C_CONST
 768 AC_C_INLINE
 769 AC_C_BIGENDIAN
 770
 771 # ------------------------------ #
 772 # Checks for library functions.  #
 773 # ------------------------------ #
 774
 775 AC_FUNC_ALLOCA
 776 AC_FUNC_MMAP
 777 AC_FUNC_VFORK
 778 AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid \
 779                 getgid poll pread64 sbrk setpgid setpgrp setsid \
 780                 sigaction sigprocmask sigsetmask socketpair syscall \
 781                 ttrace wborder setlocale iconvlist])
 782 AM_LANGINFO_CODESET
 783
 784 # Check the return and argument types of ptrace.  No canned test for
 785 # this, so roll our own.
 786 gdb_ptrace_headers='
 787 #if HAVE_SYS_TYPES_H
 788 # include <sys/types.h>
 789 #endif
 790 #if HAVE_SYS_PTRACE_H
 791 # include <sys/ptrace.h>
 792 #endif
 793 #if HAVE_UNISTD_H
 794 # include <unistd.h>
 795 #endif
 796 '
 797 # There is no point in checking if we don't have a prototype.
 798 AC_CHECK_DECLS(ptrace, [], [
 799   : ${gdb_cv_func_ptrace_ret='int'}
 800   : ${gdb_cv_func_ptrace_args='int,int,long,long'}
 801 ], $gdb_ptrace_headers)
 802 # Check return type.  Varargs (used on GNU/Linux) conflict with the
 803 # empty argument list, so check for that explicitly.
 804 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
 805   AC_TRY_COMPILE($gdb_ptrace_headers,
 806     [extern long ptrace (enum __ptrace_request, ...);],
 807     gdb_cv_func_ptrace_ret='long',
 808     AC_TRY_COMPILE($gdb_ptrace_headers,
 809       [extern int ptrace ();],
 810       gdb_cv_func_ptrace_ret='int',
 811       gdb_cv_func_ptrace_ret='long')))
 812 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
 813   [Define as the return type of ptrace.])
 814 # Check argument types.
 815 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
 816   AC_TRY_COMPILE($gdb_ptrace_headers,
 817     [extern long ptrace (enum __ptrace_request, ...);],
 818     [gdb_cv_func_ptrace_args='int,int,long,long'],[
 819 for gdb_arg1 in 'int' 'long'; do
 820  for gdb_arg2 in 'pid_t' 'int' 'long'; do
 821   for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
 822    for gdb_arg4 in 'int' 'long'; do
 823      AC_TRY_COMPILE($gdb_ptrace_headers, [
 824 extern $gdb_cv_func_ptrace_ret
 825   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
 826 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
 827     break 4;])
 828     for gdb_arg5 in 'int *' 'int' 'long'; do
 829      AC_TRY_COMPILE($gdb_ptrace_headers, [
 830 extern $gdb_cv_func_ptrace_ret
 831   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
 832 ], [
 833 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
 834     break 5;])
 835     done
 836    done
 837   done
 838  done
 839 done
 840 # Provide a safe default value.
 841 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
 842 ])])
 843 ac_save_IFS=$IFS; IFS=','
 844 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
 845 IFS=$ac_save_IFS
 846 shift
 847 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
 848   [Define to the type of arg 3 for ptrace.])
 849 if test -n "$[5]"; then
 850   AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
 851     [Define to the type of arg 5 for ptrace.])
 852 fi
 853
 854 dnl AC_FUNC_SETPGRP does not work when cross compiling
 855 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
 856 if test "$cross_compiling" = no; then
 857   AC_FUNC_SETPGRP
 858 else
 859   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
 860     [AC_TRY_COMPILE([
 861 #include <unistd.h>
 862 ], [
 863   if (setpgrp(1,1) == -1)
 864     exit (0);
 865   else
 866     exit (1);
 867 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
 868 if test $ac_cv_func_setpgrp_void = yes; then
 869   AC_DEFINE(SETPGRP_VOID, 1)
 870 fi
 871 fi
 872
 873 # Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do
 874 # since sigsetjmp might only be defined as a macro.
 875 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
 876 [AC_TRY_COMPILE([
 877 #include <setjmp.h>
 878 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
 879 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
 880 if test $gdb_cv_func_sigsetjmp = yes; then
 881   AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
 882 fi
 883
 884 # Assume we'll default to using the included libiberty regex.
 885 gdb_use_included_regex=yes
 886
 887 # However, if the system regex is GNU regex, then default to *not*
 888 # using the included regex.
 889 AC_CACHE_CHECK(
 890   [for GNU regex],
 891   [gdb_cv_have_gnu_regex],
 892   [AC_TRY_COMPILE(
 893     [#include <gnu-versions.h>],
 894     [#define REGEX_INTERFACE_VERSION 1
 895 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
 896 # error "Version mismatch"
 897 #endif],
 898     gdb_cv_have_gnu_regex=yes,
 899     gdb_cv_have_gnu_regex=no)])
 900 if test $gdb_cv_have_gnu_regex = yes; then
 901   gdb_use_included_regex=no
 902 fi
 903
 904 AC_ARG_WITH(included-regex,
 905   [  --without-included-regex don't use included regex; this is the default
 906                           on systems with version 2 of the GNU C library
 907                           (use with caution on other system)],
 908   gdb_with_regex=$withval,
 909   gdb_with_regex=$gdb_use_included_regex)
 910 if test "$gdb_with_regex" = yes; then
 911   AC_DEFINE(USE_INCLUDED_REGEX, 1,
 912     [Define to 1 if the regex included in libiberty should be used.])
 913 fi
 914
 915 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
 916 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
 917 [#include <sys/param.h>
 918 #include <sys/proc.h>
 919 ])
 920
 921 # See if <sys/lwp.h> defines `struct lwp`.
 922 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
 923 [AC_TRY_COMPILE([#include <sys/param.h>
 924 #include <sys/lwp.h>], [struct lwp l;],
 925 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
 926 if test $gdb_cv_struct_lwp = yes; then
 927   AC_DEFINE(HAVE_STRUCT_LWP, 1,
 928             [Define to 1 if your system has struct lwp.])
 929 fi
 930
 931 # See if <machine/reg.h> degines `struct reg'.
 932 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
 933 [AC_TRY_COMPILE([#include <sys/types.h>
 934 #include <machine/reg.h>], [struct reg r;],
 935 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
 936 if test $gdb_cv_struct_reg = yes; then
 937   AC_DEFINE(HAVE_STRUCT_REG, 1,
 938             [Define to 1 if your system has struct reg in <machine/reg.h>.])
 939 fi
 940
 941 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
 942 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
 943 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
 944                  [#include <machine/reg.h>])
 945
 946 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
 947 AC_MSG_CHECKING(for PTRACE_GETREGS)
 948 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
 949 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
 950                 [PTRACE_GETREGS;],
 951                 [gdb_cv_have_ptrace_getregs=yes],
 952                 [gdb_cv_have_ptrace_getregs=no])])
 953 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
 954 if test $gdb_cv_have_ptrace_getregs = yes; then
 955   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
 956   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
 957 fi
 958
 959 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
 960 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
 961 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
 962 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
 963                 [PTRACE_GETFPXREGS;],
 964                 [gdb_cv_have_ptrace_getfpxregs=yes],
 965                 [gdb_cv_have_ptrace_getfpxregs=no])])
 966 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
 967 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
 968   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
 969   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
 970 fi
 971
 972 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
 973 AC_MSG_CHECKING(for PT_GETDBREGS)
 974 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
 975 [AC_TRY_COMPILE([#include <sys/types.h>
 976 #include <sys/ptrace.h>],
 977                 [PT_GETDBREGS;],
 978                 [gdb_cv_have_pt_getdbregs=yes],
 979                 [gdb_cv_have_pt_getdbregs=no])])
 980 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
 981 if test $gdb_cv_have_pt_getdbregs = yes; then
 982   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
 983   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
 984 fi
 985
 986 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
 987 AC_MSG_CHECKING(for PT_GETXMMREGS)
 988 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
 989 [AC_TRY_COMPILE([#include <sys/types.h>
 990 #include <sys/ptrace.h>],
 991                 [PT_GETXMMREGS;],
 992                 [gdb_cv_have_pt_getxmmregs=yes],
 993                 [gdb_cv_have_pt_getxmmregs=no])])
 994 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
 995 if test $gdb_cv_have_pt_getxmmregs = yes; then
 996   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
 997   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
 998 fi
 999
1000 # Detect which type of /proc is in use, such as for Unixware or Solaris.
1001
1002 if test "${target}" = "${host}"; then
1003   case "${host}" in
1004   *-*-unixware* | *-*-sysv4.2* | *-*-sysv5* | *-*-interix* )
1005       AC_DEFINE(NEW_PROC_API, 1,
1006       [Define if you want to use new multi-fd /proc interface
1007        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
1008       ;;
1009   *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1010       AC_DEFINE(NEW_PROC_API, 1,
1011       [Define if you want to use new multi-fd /proc interface
1012        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
1013       ;;
1014   mips-sgi-irix5*)
1015       # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1016       AC_DEFINE([_KMEMUSER], 1,
1017       [Define to 1 so <sys/proc.h> gets a definition of anon_hdl.  Works
1018        around a <sys/proc.h> problem on IRIX 5.])
1019       ;;
1020   esac
1021 fi
1022
1023 if test "$ac_cv_header_sys_procfs_h" = yes; then
1024   BFD_HAVE_SYS_PROCFS_TYPE(pstatus_t)
1025   BFD_HAVE_SYS_PROCFS_TYPE(prrun_t)
1026   BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1027   BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1028   BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1029   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1030   BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1031   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset32_t)
1032   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1033   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1034   BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1035   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1036   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1037   BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1038
1039
1040   dnl Check for broken prfpregset_t type
1041
1042   dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1043   dnl prfpregset_t type (it's a typedef for the pointer to a struct
1044   dnl instead of the struct itself).  We detect this here, and work
1045   dnl around it in gdb_proc_service.h.
1046
1047   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1048     AC_MSG_CHECKING(whether prfpregset_t type is broken)
1049     AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1050       [AC_TRY_RUN([#include <sys/procfs.h>
1051        int main ()
1052        {
1053          if (sizeof (prfpregset_t) == sizeof (void *))
1054            return 1;
1055          return 0;
1056        }],
1057        gdb_cv_prfpregset_t_broken=no,
1058        gdb_cv_prfpregset_t_broken=yes,
1059        gdb_cv_prfpregset_t_broken=yes)])
1060     AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1061     if test $gdb_cv_prfpregset_t_broken = yes; then
1062       AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1063       [Define if the prfpregset_t type is broken.])
1064     fi
1065   fi
1066
1067   dnl Check for PIOCSET ioctl entry
1068
1069   AC_MSG_CHECKING(for PIOCSET ioctl entry in sys/procfs.h)
1070   AC_CACHE_VAL(gdb_cv_have_procfs_piocset,
1071   [AC_TRY_COMPILE([#include <unistd.h>
1072 #include <sys/types.h>
1073 #include <sys/procfs.h>
1074 ], [
1075     int dummy;;
1076     dummy = ioctl(0, PIOCSET, &dummy);
1077   ],
1078   gdb_cv_have_procfs_piocset=yes, gdb_cv_have_procfs_piocset=no)])
1079   AC_MSG_RESULT($gdb_cv_have_procfs_piocset)
1080   if test $gdb_cv_have_procfs_piocset = yes; then
1081     AC_DEFINE(HAVE_PROCFS_PIOCSET, 1,
1082     [Define if ioctl argument PIOCSET is available.])
1083   fi
1084 fi
1085
1086 dnl For native ports (host == target), check to see what kind of
1087 dnl legacy link.h support is needed.  (See solib-legacy.c.)
1088 if test ${host} = ${target} ; then
1089   dnl Check for struct link_map with l_ members which are indicative
1090   dnl of SVR4-like shared libraries
1091
1092   AC_MSG_CHECKING(for member l_addr in struct link_map)
1093   AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_l_members,
1094     [AC_TRY_COMPILE([#include <link.h>],
1095                     [struct link_map lm; (void) lm.l_addr;],
1096                     gdb_cv_have_struct_link_map_with_l_members=yes,
1097                     gdb_cv_have_struct_link_map_with_l_members=no)])
1098   AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_l_members)
1099   if test $gdb_cv_have_struct_link_map_with_l_members = yes; then
1100     AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS,1,
1101     [Define if <link.h> exists and defines struct link_map which has
1102      members with an ``l_'' prefix.  (For Solaris, SVR4, and
1103      SVR4-like systems.)])
1104   fi
1105
1106   dnl Check for struct link_map with lm_ members which are indicative
1107   dnl of SunOS-like shared libraries
1108
1109   AC_MSG_CHECKING(for member lm_addr in struct link_map)
1110   AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_lm_members,
1111     [AC_TRY_COMPILE([#include <sys/types.h>
1112 #include <link.h>],
1113                     [struct link_map lm; (void) lm.lm_addr;],
1114                     gdb_cv_have_struct_link_map_with_lm_members=yes,
1115                     gdb_cv_have_struct_link_map_with_lm_members=no)])
1116   AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_lm_members)
1117   if test $gdb_cv_have_struct_link_map_with_lm_members = yes; then
1118     AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS, 1,
1119     [Define if <link.h> exists and defines struct link_map which has
1120      members with an ``lm_'' prefix.  (For SunOS.)])
1121   fi
1122
1123   dnl Check for struct so_map with som_ members which are found on
1124   dnl some *BSD systems.
1125
1126   AC_MSG_CHECKING(for member som_addr in struct so_map)
1127   AC_CACHE_VAL(gdb_cv_have_struct_so_map_with_som_members,
1128     [AC_TRY_COMPILE([#include <sys/types.h>
1129 #ifdef HAVE_NLIST_H
1130 #include <nlist.h>
1131 #endif
1132 #include <link.h>],
1133                     [struct so_map lm; (void) lm.som_addr;],
1134                     gdb_cv_have_struct_so_map_with_som_members=yes,
1135                     gdb_cv_have_struct_so_map_with_som_members=no)])
1136   AC_MSG_RESULT($gdb_cv_have_struct_so_map_with_som_members)
1137   if test $gdb_cv_have_struct_so_map_with_som_members = yes; then
1138     AC_DEFINE(HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS, 1,
1139     [Define if <link.h> exists and defines a struct so_map which has
1140      members with an ``som_'' prefix.  (Found on older *BSD systems.)])
1141   fi
1142
1143   dnl Check for struct link_map32 type, which allows a 64-bit Solaris
1144   dnl debugger to debug a 32-bit Solaris app with 32-bit shared libraries.
1145
1146   AC_MSG_CHECKING(for struct link_map32 in sys/link.h)
1147   AC_CACHE_VAL(gdb_cv_have_struct_link_map32,
1148     [AC_TRY_COMPILE([#define _SYSCALL32
1149 #include <sys/link.h>], [struct link_map32 l;],
1150      gdb_cv_have_struct_link_map32=yes,
1151      gdb_cv_have_struct_link_map32=no)])
1152   AC_MSG_RESULT($gdb_cv_have_struct_link_map32)
1153   if test $gdb_cv_have_struct_link_map32 = yes; then
1154     AC_DEFINE(HAVE_STRUCT_LINK_MAP32, 1,
1155     [Define if <sys/link.h> has struct link_map32])
1156     AC_DEFINE(_SYSCALL32, 1,
1157     [Define if <sys/link.h> has link_map32 (solaris sparc-64 target)])
1158   fi
1159 fi
1160
1161 # Check if the compiler supports the `long long' type.
1162
1163 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1164                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1165 [[extern long long foo;]],
1166 [[switch (foo & 2) { case 0: return 1; }]])],
1167                                   gdb_cv_c_long_long=yes,
1168                                   gdb_cv_c_long_long=no)])
1169 if test $gdb_cv_c_long_long = yes; then
1170   AC_DEFINE(CC_HAS_LONG_LONG, 1,
1171             [Define to 1 if the compiler supports long long.])
1172 fi
1173
1174 # Check if the compiler and runtime support printing long longs.
1175
1176 AC_CACHE_CHECK([for long long support in printf],
1177                gdb_cv_printf_has_long_long,
1178                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1179 [[char buf[32];
1180   long long l = 0;
1181   l = (l << 16) + 0x0123;
1182   l = (l << 16) + 0x4567;
1183   l = (l << 16) + 0x89ab;
1184   l = (l << 16) + 0xcdef;
1185   sprintf (buf, "0x%016llx", l);
1186   return (strcmp ("0x0123456789abcdef", buf));]])],
1187                               gdb_cv_printf_has_long_long=yes,
1188                               gdb_cv_printf_has_long_long=no,
1189                               gdb_cv_printf_has_long_long=no)])
1190 if test $gdb_cv_printf_has_long_long = yes; then
1191   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1192             [Define to 1 if the "%ll" format works to print long longs.])
1193 fi
1194
1195 # Check if the compiler and runtime support printing decfloats.
1196
1197 AC_CACHE_CHECK([for decfloat support in printf],
1198                gdb_cv_printf_has_decfloat,
1199                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1200 [[char buf[64];
1201   _Decimal32 d32 = 1.2345df;
1202   _Decimal64 d64 = 1.2345dd;
1203   _Decimal128 d128 = 1.2345dl;
1204   sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1205   return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1206                               gdb_cv_printf_has_decfloat=yes,
1207                               gdb_cv_printf_has_decfloat=no,
1208                               gdb_cv_printf_has_decfloat=no)])
1209 if test $gdb_cv_printf_has_decfloat = yes; then
1210   AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1211             [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1212 fi
1213
1214 # Check if the compiler supports the `long double' type.  We can't use
1215 # AC_C_LONG_DOUBLE because that one does additional checks on the
1216 # constants defined in <float.h> that fail on some systems,
1217 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1218
1219 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1220                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1221                                   gdb_cv_c_long_double=yes,
1222                                   gdb_cv_c_long_double=no)])
1223 if test $gdb_cv_c_long_double = yes; then
1224   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1225            [Define to 1 if the compiler supports long double.])
1226 fi
1227
1228 # Check if the compiler and runtime support printing long doubles.
1229
1230 AC_CACHE_CHECK([for long double support in printf],
1231                gdb_cv_printf_has_long_double,
1232                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1233 [[char buf[16];
1234   long double f = 3.141592653;
1235   sprintf (buf, "%Lg", f);
1236   return (strncmp ("3.14159", buf, 7));]])],
1237                               gdb_cv_printf_has_long_double=yes,
1238                               gdb_cv_printf_has_long_double=no,
1239                               gdb_cv_printf_has_long_double=no)])
1240 if test $gdb_cv_printf_has_long_double = yes; then
1241   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1242             [Define to 1 if the "%Lg" format works to print long doubles.])
1243 fi
1244
1245 # Check if the compiler and runtime support scanning long doubles.
1246
1247 AC_CACHE_CHECK([for long double support in scanf],
1248                gdb_cv_scanf_has_long_double,
1249                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1250 [[#include <stdio.h>]],
1251 [[char *buf = "3.141592653";
1252   long double f = 0;
1253   sscanf (buf, "%Lg", &f);
1254   return !(f > 3.14159 && f < 3.14160);]])],
1255                               gdb_cv_scanf_has_long_double=yes,
1256                               gdb_cv_scanf_has_long_double=no,
1257                               gdb_cv_scanf_has_long_double=no)])
1258 if test $gdb_cv_scanf_has_long_double = yes; then
1259   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1260             [Define to 1 if the "%Lg" format works to scan long doubles.])
1261 fi
1262
1263 case ${host_os} in
1264 aix*)
1265   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1266     SAVE_LDFLAGS=$LDFLAGS
1267
1268     case $GCC in
1269     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1270     *) gdb_cv_bigtoc=-bbigtoc ;;
1271     esac
1272
1273     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1274     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1275     LDFLAGS="${SAVE_LDFLAGS}"
1276   ])
1277   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1278   ;;
1279 esac
1280
1281
1282 dnl For certain native configurations, we need to check whether thread
1283 dnl support can be built in or not.
1284 dnl
1285 dnl Note that we only want this if we are both native (host == target),
1286 dnl and not doing a canadian cross build (build == host).
1287
1288 if test ${build} = ${host} -a ${host} = ${target} ; then
1289    case ${host_os} in
1290    hpux*)
1291       AC_MSG_CHECKING(for HPUX/OSF thread support)
1292       if test -f /usr/include/dce/cma_config.h ; then
1293          if test "$GCC" = "yes" ; then
1294             AC_MSG_RESULT(yes)
1295             AC_DEFINE(HAVE_HPUX_THREAD_SUPPORT, 1,
1296             [Define if you have HPUX threads])
1297             CONFIG_OBS="${CONFIG_OBS} hpux-thread.o"
1298             CONFIG_SRCS="${CONFIG_SRCS} hpux-thread.c"
1299          else
1300             AC_MSG_RESULT(no (suppressed because you are not using GCC))
1301          fi
1302       else
1303          AC_MSG_RESULT(no)
1304       fi
1305       ;;
1306    solaris*)
1307       # See if thread_db library is around for Solaris thread debugging.
1308       # Note that we must explicitly test for version 1 of the library
1309       # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1310       # the same API.
1311       AC_MSG_CHECKING(for Solaris thread debugging library)
1312       if test -f /usr/lib/libthread_db.so.1 ; then
1313          AC_MSG_RESULT(yes)
1314          AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1315          [Define if using Solaris thread debugging.])
1316          CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1317          CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1318          AC_CHECK_LIB(dl, dlopen)
1319          if test "$GCC" = "yes" ; then
1320             # The GNU linker requires the -export-dynamic option to make
1321             # all symbols visible in the dynamic symbol table.
1322             hold_ldflags=$LDFLAGS
1323             AC_MSG_CHECKING(for the ld -export-dynamic flag)
1324             LDFLAGS="${LDFLAGS} -Wl,-export-dynamic"
1325             AC_TRY_LINK(, [int i;], found=yes, found=no)
1326             LDFLAGS=$hold_ldflags
1327             AC_MSG_RESULT($found)
1328             if test $found = yes; then
1329                CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -Wl,-export-dynamic"
1330             fi
1331          fi
1332          # Sun randomly tweaked the prototypes in <proc_service.h>
1333          # at one point.
1334          AC_MSG_CHECKING(if <proc_service.h> is old)
1335          AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1336             AC_TRY_COMPILE([
1337                 #include <proc_service.h>
1338                 ps_err_e ps_pdwrite
1339                     (struct ps_prochandle*, psaddr_t, const void*, size_t);
1340             ],, gdb_cv_proc_service_is_old=no,
1341                 gdb_cv_proc_service_is_old=yes)
1342          ])
1343          AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1344          if test $gdb_cv_proc_service_is_old = yes; then
1345             AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1346             [Define if <proc_service.h> on solaris uses int instead of
1347              size_t, and assorted other type changes.])
1348          fi
1349       else
1350          AC_MSG_RESULT(no)
1351       fi
1352       ;;
1353    aix*)
1354       AC_MSG_CHECKING(for AiX thread debugging library)
1355       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1356                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1357                                    [#ifndef PTHDB_VERSION_3
1358                                     #error
1359                                     #endif],
1360                                    gdb_cv_have_aix_thread_debug=yes,
1361                                    gdb_cv_have_aix_thread_debug=no)])
1362       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1363       if test $gdb_cv_have_aix_thread_debug = yes; then
1364          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1365          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1366          CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -lpthdebug"
1367       fi
1368       ;;
1369    esac
1370    AC_SUBST(CONFIG_LDFLAGS)
1371 fi
1372
1373 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1374 dnl other error codes.
1375 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1376    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1377                   gdb_cv_thread_db_h_has_td_notalloc,
1378      AC_TRY_COMPILE(
1379        [#include <thread_db.h>],
1380        [int i = TD_NOTALLOC;],
1381        gdb_cv_thread_db_h_has_td_notalloc=yes,
1382        gdb_cv_thread_db_h_has_td_notalloc=no
1383      )
1384    )
1385    AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1386                   gdb_cv_thread_db_h_has_td_version,
1387      AC_TRY_COMPILE(
1388        [#include <thread_db.h>],
1389        [int i = TD_VERSION;],
1390        gdb_cv_thread_db_h_has_td_version=yes,
1391        gdb_cv_thread_db_h_has_td_version=no
1392      )
1393    )
1394    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1395                   gdb_cv_thread_db_h_has_td_notls,
1396      AC_TRY_COMPILE(
1397        [#include <thread_db.h>],
1398        [int i = TD_NOTLS;],
1399        gdb_cv_thread_db_h_has_td_notls=yes,
1400        gdb_cv_thread_db_h_has_td_notls=no
1401      )
1402    )
1403 fi
1404 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1405   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1406             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1407 fi
1408 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1409   AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1410             [Define if <thread_db.h> has the TD_VERSION error code.])
1411 fi
1412 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1413   AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1414             [Define if <thread_db.h> has the TD_NOTLS error code.])
1415 fi
1416
1417 dnl See if we have a sys/syscall header file that has __NR_tkill.
1418 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1419    AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1420                   gdb_cv_sys_syscall_h_has_tkill,
1421      AC_TRY_COMPILE(
1422        [#include <sys/syscall.h>],
1423        [int i = __NR_tkill;],
1424        gdb_cv_sys_syscall_h_has_tkill=yes,
1425        gdb_cv_sys_syscall_h_has_tkill=no
1426      )
1427    )
1428 fi
1429 dnl See if we can issue tkill syscall.
1430 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then
1431   AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1432 fi
1433
1434 dnl Check if we can disable the virtual address space randomization.
1435 dnl The functionality of setarch -R.
1436 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1437 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1438 #      if !HAVE_DECL_ADDR_NO_RANDOMIZE
1439 #       define ADDR_NO_RANDOMIZE 0x0040000
1440 #      endif
1441        /* Test the flag could be set and stays set.  */
1442        personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1443        if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1444            return 1])])
1445 AC_RUN_IFELSE([PERSONALITY_TEST],
1446               [have_personality=true],
1447               [have_personality=false],
1448               [AC_LINK_IFELSE([PERSONALITY_TEST],
1449                               [have_personality=true],
1450                               [have_personality=false])])
1451 if $have_personality
1452 then
1453     AC_DEFINE([HAVE_PERSONALITY], 1,
1454               [Define if you support the personality syscall.])
1455 fi
1456
1457 dnl Handle optional features that can be enabled.
1458
1459 AC_ARG_WITH(sysroot,
1460 [  --with-sysroot[=DIR] Search for usr/lib et al within DIR.],
1461 [
1462  case ${with_sysroot} in
1463  yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
1464  *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
1465  esac
1466
1467  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
1468
1469  if test "x$prefix" = xNONE; then
1470   test_prefix=/usr/local
1471  else
1472   test_prefix=$prefix
1473  fi
1474  if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
1475   test_exec_prefix=$test_prefix
1476  else
1477   test_exec_prefix=$exec_prefix
1478  fi
1479  case ${TARGET_SYSTEM_ROOT} in
1480  "${test_prefix}"|"${test_prefix}/"*|\
1481  "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
1482  '${prefix}'|'${prefix}/'*|\
1483  '${exec_prefix}'|'${exec_prefix}/'*)
1484    t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
1485    TARGET_SYSTEM_ROOT_DEFINE="$t"
1486    ;;
1487  esac
1488 ], [
1489  TARGET_SYSTEM_ROOT=
1490  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
1491 ])
1492 AC_SUBST(TARGET_SYSTEM_ROOT)
1493 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
1494
1495 system_gdbinit=
1496 AC_ARG_WITH(system-gdbinit,
1497 [  --with-system-gdbinit=file       Automatically load a system-wide gdbinit file],
1498 [system_gdbinit=${withval}])
1499
1500 AC_DEFINE_DIR(SYSTEM_GDBINIT, system_gdbinit,
1501               [System-wide gdbinit file.])
1502
1503 if test "x$prefix" = xNONE; then
1504   test_prefix=$ac_default_prefix
1505 else
1506   test_prefix=$prefix
1507 fi
1508 if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
1509   test_exec_prefix=$test_prefix
1510 else
1511   test_exec_prefix=$exec_prefix
1512 fi
1513 case ${system_gdbinit} in
1514  "${test_prefix}"|"${test_prefix}/"*|\
1515  "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
1516  '${prefix}'|'${prefix}/'*|\
1517  '${exec_prefix}'|'${exec_prefix}/'*)
1518   AC_DEFINE(SYSTEM_GDBINIT_RELOCATABLE, 1,
1519             [Define if the system-wide gdbinit file should be relocated when GDB is moved.])
1520    ;;
1521 esac
1522
1523 AC_ARG_ENABLE(werror,
1524   [  --enable-werror    treat compile warnings as errors],
1525   [case "${enableval}" in
1526      yes | y) ERROR_ON_WARNING="yes" ;;
1527      no | n)  ERROR_ON_WARNING="no" ;;
1528      *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1529    esac])
1530
1531 # Enable -Werror by default when using gcc
1532 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
1533     ERROR_ON_WARNING=yes
1534 fi
1535
1536 WERROR_CFLAGS=""
1537 if test "${ERROR_ON_WARNING}" = yes ; then
1538     WERROR_CFLAGS="-Werror"
1539 fi
1540
1541 # The entries after -Wno-pointer-sign are disabled warnings which may
1542 # be enabled in the future, which can not currently be used to build
1543 # GDB.
1544 # NOTE: If you change this list, remember to update
1545 # gdb/doc/gdbint.texinfo.
1546 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
1547 -Wformat-nonliteral -Wno-pointer-sign \
1548 -Wno-unused -Wno-switch -Wno-char-subscripts"
1549
1550 # Enable -Wno-format by default when using gcc on mingw since many
1551 # GCC versions complain about %I64.
1552 case "${host}" in
1553   *-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;
1554 esac
1555
1556 AC_ARG_ENABLE(build-warnings,
1557 [  --enable-build-warnings Enable build-time compiler warnings if gcc is used],
1558 [case "${enableval}" in
1559   yes)  ;;
1560   no)   build_warnings="-w";;
1561   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1562         build_warnings="${build_warnings} ${t}";;
1563   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1564         build_warnings="${t} ${build_warnings}";;
1565   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1566 esac
1567 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1568   echo "Setting compiler warning flags = $build_warnings" 6>&1
1569 fi])dnl
1570 AC_ARG_ENABLE(gdb-build-warnings,
1571 [  --enable-gdb-build-warnings Enable GDB specific build-time compiler warnings if gcc is used],
1572 [case "${enableval}" in
1573   yes)  ;;
1574   no)   build_warnings="-w";;
1575   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1576         build_warnings="${build_warnings} ${t}";;
1577   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1578         build_warnings="${t} ${build_warnings}";;
1579   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1580 esac
1581 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1582   echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
1583 fi])dnl
1584 WARN_CFLAGS=""
1585 if test "x${build_warnings}" != x -a "x$GCC" = xyes
1586 then
1587     AC_MSG_CHECKING(compiler warning flags)
1588     # Separate out the -Werror flag as some files just cannot be
1589     # compiled with it enabled.
1590     for w in ${build_warnings}; do
1591         case $w in
1592         -Werr*) WERROR_CFLAGS=-Werror ;;
1593         *) # Check that GCC accepts it
1594             saved_CFLAGS="$CFLAGS"
1595             CFLAGS="$CFLAGS $w"
1596             AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
1597             CFLAGS="$saved_CFLAGS"
1598         esac
1599     done
1600     AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
1601 fi
1602 AC_SUBST(WARN_CFLAGS)
1603 AC_SUBST(WERROR_CFLAGS)
1604
1605 # In the Cygwin environment, we need some additional flags.
1606 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1607 [AC_EGREP_CPP(lose, [
1608 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1609 lose
1610 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1611
1612
1613 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1614 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1615 case ${host} in
1616   *go32* ) SER_HARDWIRE=ser-go32.o ;;
1617   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1618   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1619 esac
1620 AC_SUBST(SER_HARDWIRE)
1621
1622 # libreadline needs libuser32.a in a cygwin environment
1623 WIN32LIBS=
1624 if test x$gdb_cv_os_cygwin = xyes; then
1625     WIN32LIBS="-luser32"
1626     case "${target}" in
1627         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1628         ;;
1629     esac
1630 fi
1631
1632 # The ser-tcp.c module requires sockets.
1633 case ${host} in
1634   *mingw32*)
1635     AC_DEFINE(USE_WIN32API, 1,
1636               [Define if we should use the Windows API, instead of the
1637                POSIX API.  On Windows, we use the Windows API when
1638                building for MinGW, but the POSIX API when building
1639                for Cygwin.])
1640     WIN32LIBS="$WIN32LIBS -lws2_32"
1641     ;;
1642 esac
1643 AC_SUBST(WIN32LIBS)
1644
1645 # Add ELF support to GDB, but only if BFD includes ELF support.
1646 OLD_CFLAGS=$CFLAGS
1647 OLD_LDFLAGS=$LDFLAGS
1648 OLD_LIBS=$LIBS
1649 CFLAGS="$CFLAGS -I${srcdir}/../include -I../bfd -I${srcdir}/../bfd"
1650 LDFLAGS="$LDFLAGS -L../bfd -L../libiberty"
1651 intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
1652 LIBS="-lbfd -liberty $intl $LIBS"
1653 AC_CACHE_CHECK([for ELF support in BFD], gdb_cv_var_elf,
1654 [AC_TRY_LINK(
1655 [#include <stdlib.h>
1656 #include "bfd.h"
1657 #include "elf-bfd.h"
1658 ],
1659 [bfd *abfd = NULL; bfd_get_elf_phdr_upper_bound (abfd); ],
1660 gdb_cv_var_elf=yes, gdb_cv_var_elf=no)])
1661 if test $gdb_cv_var_elf = yes; then
1662   CONFIG_OBS="$CONFIG_OBS elfread.o"
1663   AC_DEFINE(HAVE_ELF, 1,
1664             [Define if ELF support should be included.])
1665 fi
1666 CFLAGS=$OLD_CFLAGS
1667 LDFLAGS=$OLD_LDFLAGS
1668 LIBS=$OLD_LIBS
1669
1670 # Add any host-specific objects to GDB.
1671 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1672
1673 LIBGUI="../libgui/src/libgui.a"
1674 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1675 AC_SUBST(LIBGUI)
1676 AC_SUBST(GUI_CFLAGS_X)
1677
1678 WIN32LDAPP=
1679 AC_SUBST(WIN32LIBS)
1680 AC_SUBST(WIN32LDAPP)
1681
1682 case "${host}" in
1683 *-*-cygwin* | *-*-mingw* )
1684     configdir="win"
1685     ;;
1686 *)
1687     configdir="unix"
1688     ;;
1689 esac
1690
1691 GDBTKLIBS=
1692 if test "${enable_gdbtk}" = "yes"; then
1693
1694     # Gdbtk must have an absolute path to srcdir in order to run
1695     # properly when not installed.
1696     here=`pwd`
1697     cd ${srcdir}
1698     GDBTK_SRC_DIR=`pwd`
1699     cd $here
1700
1701     SC_PATH_TCLCONFIG
1702
1703     # If $no_tk is nonempty, then we can't do Tk, and there is no
1704     # point to doing Tcl.
1705     SC_PATH_TKCONFIG
1706
1707     if test -z "${no_tcl}" -a -z "${no_tk}"; then
1708         SC_LOAD_TCLCONFIG
1709
1710         # Check for in-tree tcl
1711         here=`pwd`
1712         cd ${srcdir}/..
1713         topdir=`pwd`
1714         cd ${here}
1715
1716         intree="no"
1717         if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
1718           intree="yes"
1719         fi
1720
1721         # Find Tcl private headers
1722         if test x"${intree}" = xno; then
1723           CY_AC_TCL_PRIVATE_HEADERS
1724           TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
1725           TCL_LIBRARY="${TCL_LIB_SPEC}"
1726           TCL_DEPS=""
1727         else
1728           # If building tcl in the same src tree, private headers
1729           # are not needed, but we need to be sure to use the right
1730           # headers library
1731           TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
1732           TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
1733           TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
1734         fi
1735         AC_SUBST(TCL_INCLUDE)
1736         AC_SUBST(TCL_LIBRARY)
1737         AC_SUBST(TCL_DEPS)
1738
1739         SC_LOAD_TKCONFIG
1740
1741         # Check for in-tree Tk
1742         intree="no"
1743         if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
1744           intree="yes"
1745         fi
1746
1747         # Find Tk private headers
1748         if test x"${intree}" = xno; then
1749           CY_AC_TK_PRIVATE_HEADERS
1750           TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
1751           TK_LIBRARY=${TK_LIB_SPEC}
1752           TK_DEPS=""
1753         else
1754           TK_INCLUDE="-I${TK_SRC_DIR}/generic"
1755           TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
1756           TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
1757         fi
1758         AC_SUBST(TK_INCLUDE)
1759         AC_SUBST(TK_LIBRARY)
1760         AC_SUBST(TK_DEPS)
1761         AC_SUBST(TK_XINCLUDES)
1762
1763         ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
1764
1765         # Include some libraries that Tcl and Tk want.
1766         TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
1767         # Yes, the ordering seems wrong here.  But it isn't.
1768         # TK_LIBS is the list of libraries that need to be linked
1769         # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
1770         # were in LIBS then any link tests after this point would
1771         # try to include things like `$(LIBGUI)', which wouldn't work.
1772         GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
1773
1774         CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
1775         CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
1776         CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
1777         CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
1778         CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
1779         CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
1780         CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
1781
1782         if test x$gdb_cv_os_cygwin = xyes; then
1783           WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
1784           WIN32LDAPP="-Wl,--subsystem,console"
1785           CONFIG_OBS="${CONFIG_OBS} gdbres.o"
1786         fi
1787
1788         AC_CONFIG_SUBDIRS(gdbtk)
1789     fi
1790 fi
1791
1792 AC_SUBST(X_CFLAGS)
1793 AC_SUBST(X_LDFLAGS)
1794 AC_SUBST(X_LIBS)
1795 AC_SUBST(GDBTKLIBS)
1796 AC_SUBST(GDBTK_CFLAGS)
1797 AC_SUBST(GDBTK_SRC_DIR)
1798
1799 AC_PATH_X
1800
1801 # Unlike the sim directory, whether a simulator is linked is controlled by
1802 # presence of a gdb_sim definition in the target configure.tgt entry.
1803 # This code just checks for a few cases where we'd like to ignore those
1804 # definitions, even when they're present in the '.mt' file.  These cases
1805 # are when --disable-sim is specified, or if the simulator directory is
1806 # not part of the source tree.
1807 #
1808 AC_ARG_ENABLE(sim,
1809 [  --enable-sim            Link gdb with simulator],
1810 [echo "enable_sim = $enable_sim";
1811  echo "enableval = ${enableval}";
1812  case "${enableval}" in
1813   yes) ignore_sim=false ;;
1814   no)  ignore_sim=true ;;
1815   *)   ignore_sim=false ;;
1816  esac],
1817 [ignore_sim=false])
1818
1819 if test ! -d "${srcdir}/../sim"; then
1820   ignore_sim=true
1821 fi
1822
1823 SIM=
1824 SIM_OBS=
1825 if test "${ignore_sim}" = "false"; then
1826   if test x"${gdb_sim}" != x ; then
1827     SIM="${gdb_sim}"
1828     SIM_OBS="remote-sim.o"
1829     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
1830   fi
1831 fi
1832 AC_SUBST(SIM)
1833 AC_SUBST(SIM_OBS)
1834
1835 AC_SUBST(ENABLE_CFLAGS)
1836 AC_SUBST(PROFILE_CFLAGS)
1837
1838 AC_SUBST(CONFIG_OBS)
1839 AC_SUBST(CONFIG_DEPS)
1840 AC_SUBST(CONFIG_SRCS)
1841 AC_SUBST(CONFIG_ALL)
1842 AC_SUBST(CONFIG_CLEAN)
1843 AC_SUBST(CONFIG_INSTALL)
1844 AC_SUBST(CONFIG_UNINSTALL)
1845
1846 # List of host floatformats.
1847 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
1848 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
1849 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
1850
1851 # target_subdir is used by the testsuite to find the target libraries.
1852 target_subdir=
1853 if test "${host}" != "${target}"; then
1854     target_subdir="${target_alias}/"
1855 fi
1856 AC_SUBST(target_subdir)
1857
1858 frags=
1859 if test "${gdb_native}" = "yes"; then
1860   host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
1861   if test ! -f ${host_makefile_frag}; then
1862     AC_MSG_ERROR("*** Gdb does not support native target ${host}")
1863   fi
1864   frags="$frags $host_makefile_frag"
1865 else
1866   host_makefile_frag=/dev/null
1867 fi
1868
1869 AC_SUBST_FILE(host_makefile_frag)
1870 AC_SUBST(frags)
1871
1872 changequote(,)dnl
1873 if test "${gdb_native}" = "yes"; then
1874 # We pick this up from the host configuration file (.mh) because we
1875 # do not have a native configuration Makefile fragment.
1876 nativefile=`sed -n '
1877 s/NAT_FILE[     ]*=[    ]*\([^  ]*\)/\1/p
1878 ' ${host_makefile_frag}`
1879 fi
1880 changequote([,])
1881
1882 if test x"${gdb_osabi}" != x ; then
1883     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
1884                        [Define to the default OS ABI for this configuration.])
1885 fi
1886
1887 # Enable multi-ice-gdb-server.
1888 AC_ARG_ENABLE(multi-ice,
1889 [  --enable-multi-ice      build the multi-ice-gdb-server],
1890   [case $enableval in
1891     yes | no)
1892       ;;
1893     *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
1894   esac])
1895 if test "x$enable_multi_ice" = xyes; then
1896    AC_CONFIG_SUBDIRS(multi-ice)
1897 fi
1898
1899 # We only build gdbserver automatically in a native configuration.
1900 if test "$gdb_native" = "yes"; then
1901   AC_MSG_CHECKING(whether gdbserver is supported on this host)
1902   if test "x$build_gdbserver" = xyes; then
1903     AC_MSG_RESULT(yes)
1904     AC_CONFIG_SUBDIRS(gdbserver)
1905   else
1906     AC_MSG_RESULT(no)
1907   fi
1908 fi
1909
1910 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
1911 # to an empty version.
1912
1913 files=
1914 links=
1915
1916 rm -f nm.h
1917 nm_h=""
1918 if test "${nativefile}" != ""; then
1919     nm_h=nm.h
1920     case "${nativefile}" in
1921       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
1922       * ) GDB_NM_FILE="${nativefile}"
1923     esac
1924     files="${files} ${GDB_NM_FILE}"
1925     links="${links} nm.h"
1926     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
1927 fi
1928 AC_SUBST(nm_h)
1929
1930 AC_LINK_FILES($files, $links)
1931
1932 dnl Check for exe extension set on certain hosts (e.g. Win32)
1933 AC_EXEEXT
1934
1935 dnl  Detect the character set used by this host.
1936 dnl  At the moment, we just assume it's UTF-8.
1937 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
1938           [Define to be a string naming the default host character set.])
1939
1940 AC_OUTPUT(Makefile .gdbinit:gdbinit.in gnulib/Makefile,
1941 [
1942 dnl Autoconf doesn't provide a mechanism for modifying definitions
1943 dnl provided by makefile fragments.
1944 dnl
1945
1946 changequote(,)dnl
1947 sed -e '/^NAT_FILE[     ]*=/s,^NAT_FILE[        ]*=[    ]*,&config/'"${gdb_host_cpu}"'/,' <Makefile >Makefile.tmp
1948 mv -f Makefile.tmp Makefile
1949 changequote([,])dnl
1950
1951
1952 case x$CONFIG_HEADERS in
1953 xconfig.h:config.in)
1954 echo > stamp-h ;;
1955 esac
1956 ],
1957 [
1958 gdb_host_cpu=$gdb_host_cpu
1959 nativefile=$nativefile
1960 ])
1961
1962 exit 0