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, 2010
   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_USE_SYSTEM_EXTENSIONS
  30 gl_EARLY
  31 ACX_LARGEFILE
  32 AM_PROG_CC_STDC
  33
  34 AC_CONFIG_AUX_DIR(..)
  35 AC_CANONICAL_SYSTEM
  36
  37 # Dependency checking.
  38 ZW_CREATE_DEPDIR
  39 ZW_PROG_COMPILER_DEPENDENCIES([CC])
  40
  41 # Check for the 'make' the user wants to use.
  42 AC_CHECK_PROGS(MAKE, make)
  43 MAKE_IS_GNU=
  44 case "`$MAKE --version 2>&1 | sed 1q`" in
  45   *GNU*)
  46     MAKE_IS_GNU=yes
  47     ;;
  48 esac
  49 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
  50 AC_PROG_MAKE_SET
  51
  52 dnl List of object files and targets accumulated by configure.
  53
  54 CONFIG_OBS=
  55 CONFIG_DEPS=
  56 CONFIG_SRCS=
  57 ENABLE_CFLAGS=
  58
  59 CONFIG_ALL=
  60 CONFIG_CLEAN=
  61 CONFIG_INSTALL=
  62 CONFIG_UNINSTALL=
  63
  64 dnl Set up for gettext.
  65 ZW_GNU_GETTEXT_SISTER_DIR
  66
  67 localedir='${datadir}/locale'
  68 AC_SUBST(localedir)
  69
  70 if test x"$USE_NLS" = xyes; then
  71    CONFIG_ALL="$CONFIG_ALL all-po"
  72    CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
  73    CONFIG_INSTALL="$CONFIG_INSTALL install-po"
  74    CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
  75 fi
  76
  77 gl_INIT
  78
  79 # For Makefile dependencies.
  80 GNULIB_STDINT_H=
  81 if test x"$STDINT_H" != x; then
  82   GNULIB_STDINT_H=gnulib/$STDINT_H
  83 fi
  84 AC_SUBST(GNULIB_STDINT_H)
  85
  86 PACKAGE=gdb
  87 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
  88 AC_SUBST(PACKAGE)
  89
  90 # GDB does not use automake, but gnulib does.  This line lets us
  91 # generate its Makefile.in.
  92 AM_INIT_AUTOMAKE(gdb, UNUSED-VERSION, [no-define])
  93
  94 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
  95     [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
  96     [${libdir}/debug])
  97
  98 # GDB's datadir relocation
  99
 100 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
 101     [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
 102     [${datadir}/gdb])
 103
 104 AC_ARG_WITH(relocated-sources,
 105 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
 106 [reloc_srcdir="${withval}"
 107  AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
 108               [Relocated directory for source files. ])
 109 ])
 110
 111 AC_CONFIG_SUBDIRS(doc testsuite)
 112
 113 # Check whether to support alternative target configurations
 114 AC_ARG_ENABLE(targets,
 115 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
 116 [case "${enableval}" in
 117   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
 118             ;;
 119   no)       enable_targets= ;;
 120   *)        enable_targets=$enableval ;;
 121 esac])
 122
 123 # Check whether to enable 64-bit support on 32-bit hosts
 124 AC_ARG_ENABLE(64-bit-bfd,
 125 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
 126 [case "${enableval}" in
 127   yes)  want64=true  ;;
 128   no)   want64=false ;;
 129   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
 130 esac],[want64=false])dnl
 131
 132 # Provide defaults for some variables set by the per-host and per-target
 133 # configuration.
 134 gdb_host_obs=posix-hdep.o
 135
 136 if test "${target}" = "${host}"; then
 137   gdb_native=yes
 138 else
 139   gdb_native=no
 140 fi
 141
 142 . $srcdir/configure.host
 143
 144 # Accumulate some settings from configure.tgt over all enabled targets
 145
 146 TARGET_OBS=
 147 all_targets=
 148
 149 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 150 do
 151   if test "$targ_alias" = "all"; then
 152     all_targets=true
 153   else
 154     # Canonicalize the secondary target names.
 155     result=`$ac_config_sub $targ_alias 2>/dev/null`
 156     if test -n "$result"; then
 157         targ=$result
 158     else
 159         targ=$targ_alias
 160     fi
 161
 162     . ${srcdir}/configure.tgt
 163
 164     AS_IF([test -z "${gdb_target_obs}"],
 165       [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
 166
 167     # Target-specific object files
 168     for i in ${gdb_target_obs}; do
 169         case " $TARGET_OBS " in
 170         *" ${i} "*) ;;
 171         *)
 172           TARGET_OBS="$TARGET_OBS ${i}"
 173           ;;
 174         esac
 175     done
 176
 177     # Check whether this target needs 64-bit CORE_ADDR
 178     if test x${want64} = xfalse; then
 179       . ${srcdir}/../bfd/config.bfd
 180     fi
 181   fi
 182 done
 183
 184 if test x${all_targets} = xtrue; then
 185
 186   # We want all 64-bit targets if we either:
 187   #  - run on a 64-bit host  or
 188   #  - already require 64-bit support for some other target  or
 189   #  - the --enable-64-bit-bfd option was supplied
 190   # Otherwise we only support all 32-bit targets.
 191   #
 192   # NOTE: This test must be in sync with the corresponding
 193   #       tests in BFD!
 194
 195   if test x${want64} = xfalse; then
 196     AC_CHECK_SIZEOF(long)
 197     if test "x${ac_cv_sizeof_long}" = "x8"; then
 198       want64=true
 199     fi
 200   fi
 201   if test x${want64} = xtrue; then
 202     TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
 203   else
 204     TARGET_OBS='$(ALL_TARGET_OBS)'
 205   fi
 206 fi
 207
 208 AC_SUBST(TARGET_OBS)
 209
 210 # For other settings, only the main target counts.
 211 gdb_sim=
 212 gdb_osabi=
 213 build_gdbserver=
 214 targ=$target; . ${srcdir}/configure.tgt
 215
 216 # Fetch the default architecture and default target vector from BFD.
 217 targ=$target; . $srcdir/../bfd/config.bfd
 218
 219 # We only want the first architecture, so strip off the others if
 220 # there is more than one.
 221 targ_archs=`echo $targ_archs | sed 's/ .*//'`
 222
 223 if test "x$targ_archs" != x; then
 224   AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
 225     [Define to BFD's default architecture. ])
 226 fi
 227 if test "x$targ_defvec" != x; then
 228   AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
 229     [Define to BFD's default target vector. ])
 230 fi
 231
 232 # The CLI cannot be disabled yet, but may be in the future.
 233
 234 # Enable CLI.
 235 AC_ARG_ENABLE(gdbcli,
 236 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
 237   [case $enableval in
 238     yes)
 239       ;;
 240     no)
 241       AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
 242     *)
 243       AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
 244   esac],
 245   [enable_gdbcli=yes])
 246 if test x"$enable_gdbcli" = xyes; then
 247   if test -d $srcdir/cli; then
 248     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
 249     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
 250     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
 251     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
 252   fi
 253 fi
 254
 255 # Enable MI.
 256 AC_ARG_ENABLE(gdbmi,
 257 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
 258   [case $enableval in
 259     yes | no)
 260       ;;
 261     *)
 262       AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
 263   esac],
 264   [enable_gdbmi=yes])
 265 if test x"$enable_gdbmi" = xyes; then
 266   if test -d $srcdir/mi; then
 267     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
 268     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
 269     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
 270     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
 271   fi
 272 fi
 273
 274 # Enable TUI.
 275 AC_ARG_ENABLE(tui,
 276 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
 277   [case $enableval in
 278     yes | no | auto)
 279       ;;
 280     *)
 281       AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
 282   esac],enable_tui=auto)
 283
 284 # Enable gdbtk.
 285 AC_ARG_ENABLE(gdbtk,
 286 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
 287   [case $enableval in
 288     yes | no)
 289       ;;
 290     *)
 291       AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
 292   esac],
 293   [if test -d $srcdir/gdbtk; then
 294     enable_gdbtk=yes
 295   else
 296     enable_gdbtk=no
 297   fi])
 298 # We unconditionally disable gdbtk tests on selected platforms.
 299 case $host_os in
 300   go32* | windows*)
 301     AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
 302     enable_gdbtk=no ;;
 303 esac
 304
 305 # Libunwind support.
 306 AC_ARG_WITH(libunwind,
 307 AS_HELP_STRING([--with-libunwind], [use libunwind frame unwinding support]),
 308 [case "${withval}" in
 309   yes)  enable_libunwind=yes ;;
 310   no)   enable_libunwind=no ;;
 311   *)    AC_MSG_ERROR(bad value ${withval} for GDB with-libunwind option) ;;
 312 esac],[
 313   AC_CHECK_HEADERS(libunwind.h libunwind-ia64.h)
 314   if test x"$ac_cv_header_libunwind_h" = xyes -a x"$ac_cv_header_libunwind_ia64_h" = xyes; then
 315     enable_libunwind=yes;
 316   fi
 317 ])
 318
 319 if test x"$enable_libunwind" = xyes; then
 320   AC_CHECK_HEADERS(libunwind.h libunwind-ia64.h)
 321   AC_DEFINE(HAVE_LIBUNWIND, 1, [Define if libunwind library is being used.])
 322   CONFIG_OBS="$CONFIG_OBS libunwind-frame.o"
 323   CONFIG_DEPS="$CONFIG_DEPS libunwind-frame.o"
 324   CONFIG_SRCS="$CONFIG_SRCS libunwind-frame.c"
 325 fi
 326
 327 opt_curses=no
 328 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
 329
 330 prefer_curses=no
 331 if test "$opt_curses" = "yes"; then
 332   prefer_curses=yes
 333 fi
 334
 335 # Profiling support.
 336 AC_ARG_ENABLE(profiling,
 337 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
 338   [case $enableval in
 339     yes | no)
 340       ;;
 341     *)
 342       AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
 343   esac],
 344  [enable_profiling=no])
 345
 346 AC_CHECK_FUNCS(monstartup _mcleanup)
 347 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
 348 [AC_TRY_LINK(
 349 [#include <stdlib.h>
 350 extern char _etext;
 351 ],
 352 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
 353 if test $ac_cv_var__etext = yes; then
 354   AC_DEFINE(HAVE__ETEXT, 1,
 355             [Define to 1 if your system has the _etext variable. ])
 356 fi
 357 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
 358 [AC_TRY_LINK(
 359 [#include <stdlib.h>
 360 extern char etext;
 361 ],
 362 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
 363 if test $ac_cv_var_etext = yes; then
 364   AC_DEFINE(HAVE_ETEXT, 1,
 365             [Define to 1 if your system has the etext variable. ])
 366 fi
 367 if test "$enable_profiling" = yes ; then
 368   if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
 369     AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
 370   fi
 371   PROFILE_CFLAGS=-pg
 372   OLD_CFLAGS="$CFLAGS"
 373   CFLAGS="$CFLAGS $PROFILE_CFLAGS"
 374
 375   AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
 376     [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
 377      ac_cv_cc_supports_pg=no)])
 378
 379   if test $ac_cv_cc_supports_pg = no; then
 380     AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
 381   fi
 382
 383   CFLAGS="$OLD_CFLAGS"
 384 fi
 385
 386 ACX_PKGVERSION([GDB])
 387 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
 388 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
 389 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
 390
 391 # --------------------- #
 392 # Checks for programs.  #
 393 # --------------------- #
 394
 395 AC_PROG_AWK
 396 AC_PROG_INSTALL
 397 AC_PROG_LN_S
 398 AC_PROG_RANLIB
 399 AC_PROG_YACC
 400
 401 AC_CHECK_TOOL(AR, ar)
 402 AC_CHECK_TOOL(DLLTOOL, dlltool)
 403 AC_CHECK_TOOL(WINDRES, windres)
 404
 405 # Needed for GNU/Hurd.
 406 AC_CHECK_TOOL(MIG, mig)
 407
 408 # ---------------------- #
 409 # Checks for libraries.  #
 410 # ---------------------- #
 411
 412 # We might need to link with -lm; most simulators need it.
 413 AC_CHECK_LIB(m, main)
 414
 415 # We need to link with -lw to get `wctype' on Solaris before Solaris
 416 # 2.6.  Solaris 2.6 and beyond have this function in libc, and have a
 417 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
 418 # is known to have this problem).  Therefore we avoid libw if we can.
 419 AC_CHECK_FUNC(wctype, [],
 420   [AC_CHECK_LIB(w, wctype)])
 421
 422 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 423 AC_SEARCH_LIBS(gethostbyname, nsl)
 424
 425 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 426 AC_SEARCH_LIBS(socketpair, socket)
 427
 428 # Link in zlib if we can.  This allows us to read compressed debug sections.
 429 AM_ZLIB
 430
 431 # On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).
 432 AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl])
 433
 434 AM_ICONV
 435
 436 # On alpha-osf, it appears that libtermcap and libcurses are not compatible.
 437 # There is a very specific comment in /usr/include/curses.h explaining that
 438 # termcap routines built into libcurses must not be used.
 439 #
 440 # The symptoms we observed so far is GDB unexpectedly changing
 441 # the terminal settings when tgetent is called - this is particularly
 442 # visible as the output is missing carriage returns, and so rapidly
 443 # becomes very hard to read.
 444 #
 445 # The readline configure script has already decided that libtermcap
 446 # was enough for its purposes, and so decided to build readline using
 447 # libtermcap.  Since the TUI mode requires curses, building GDB with
 448 # TUI enabled results in both libraries to be used at the same time,
 449 # which is not allowed.  This basically means that GDB with TUI is
 450 # broken on alpha-osf.
 451
 452 case $host_os in
 453   osf* )
 454     if test x"$enable_tui" = xyes; then
 455       AC_MSG_ERROR([Building GDB with TUI mode is not supported on this host])
 456     fi
 457     if test x"$enable_tui" = xauto; then
 458       enable_tui=no
 459     fi
 460     ;;
 461 esac
 462
 463 # For the TUI, we need enhanced curses functionality.
 464 if test x"$enable_tui" != xno; then
 465   prefer_curses=yes
 466 fi
 467
 468 curses_found=no
 469 if test x"$prefer_curses" = xyes; then
 470   # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
 471   # curses library because the latter might not provide all the
 472   # functionality we need.  However, this leads to problems on systems
 473   # where the linker searches /usr/local/lib, but the compiler doesn't
 474   # search /usr/local/include, if ncurses is installed in /usr/local.  A
 475   # default installation of ncurses on alpha*-dec-osf* will lead to such
 476   # a situation.
 477   AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
 478
 479   if test "$ac_cv_search_waddstr" != no; then
 480     curses_found=yes
 481   fi
 482 fi
 483
 484 # Check whether we should enable the TUI, but only do so if we really
 485 # can.
 486 if test x"$enable_tui" != xno; then
 487   if test -d $srcdir/tui; then
 488     if test "$curses_found" != no; then
 489       CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
 490       CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
 491       CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
 492       ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
 493       CONFIG_ALL="${CONFIG_ALL} all-tui"
 494       CONFIG_CLEAN="${CONFIG_CLEAN} clean-tui"
 495       CONFIG_INSTALL="${CONFIG_INSTALL} install-tui"
 496       CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-tui"
 497     else
 498       if test x"$enable_tui" = xyes; then
 499         AC_MSG_ERROR([no enhanced curses library found; disable TUI])
 500       else
 501         AC_MSG_WARN([no enhanced curses library found; disabling TUI])
 502       fi
 503     fi
 504   fi
 505 fi
 506
 507 # Since GDB uses Readline, we need termcap functionality.  In many
 508 # cases this will be provided by the curses library, but some systems
 509 # have a seperate termcap library, or no curses library at all.
 510
 511 case $host_os in
 512   cygwin*)
 513     if test -d $srcdir/libtermcap; then
 514       LIBS="../libtermcap/libtermcap.a $LIBS"
 515       ac_cv_search_tgetent="../libtermcap/libtermcap.a"
 516     fi ;;
 517   go32* | *djgpp*)
 518     ac_cv_search_tgetent="none required"
 519     ;;
 520   *mingw32*)
 521     ac_cv_search_tgetent="none required"
 522     CONFIG_OBS="$CONFIG_OBS windows-termcap.o"
 523     ;;
 524 esac
 525
 526 # These are the libraries checked by Readline.
 527 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
 528
 529 if test "$ac_cv_search_tgetent" = no; then
 530   AC_MSG_ERROR([no termcap library found])
 531 fi
 532
 533 AC_ARG_WITH([system-readline],
 534   [AS_HELP_STRING([--with-system-readline],
 535                   [use installed readline library])])
 536
 537 if test "$with_system_readline" = yes; then
 538   READLINE=-lreadline
 539   READLINE_DEPS=
 540   READLINE_CFLAGS=
 541
 542   # readline-6.0 started to use the name `_rl_echoing_p'.
 543   # `$(READLINE_DIR)/' of bundled readline would not resolve in configure.
 544
 545   AC_MSG_CHECKING([for readline_echoing_p])
 546   save_LIBS=$LIBS
 547   LIBS="$LIBS $READLINE"
 548   AC_LINK_IFELSE(AC_LANG_PROGRAM(,[[extern int readline_echoing_p;
 549                                     return readline_echoing_p;]]),
 550                  [READLINE_ECHOING_P=yes],
 551                  [READLINE_ECHOING_P=no
 552                   AC_DEFINE([readline_echoing_p], [_rl_echoing_p],
 553                             [readline-6.0 started to use different name.])])
 554   LIBS="$save_LIBS"
 555   AC_MSG_RESULT([$READLINE_ECHOING_P])
 556 else
 557   READLINE='$(READLINE_DIR)/libreadline.a'
 558   READLINE_DEPS='$(READLINE)'
 559   READLINE_CFLAGS='-I$(READLINE_SRC)/..'
 560 fi
 561 AC_SUBST(READLINE)
 562 AC_SUBST(READLINE_DEPS)
 563 AC_SUBST(READLINE_CFLAGS)
 564
 565 AC_ARG_WITH(expat,
 566   AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
 567   [], [with_expat=auto])
 568 AC_MSG_CHECKING([whether to use expat])
 569 AC_MSG_RESULT([$with_expat])
 570
 571 if test "${with_expat}" = no; then
 572   AC_MSG_WARN([expat support disabled; some features may be unavailable.])
 573   HAVE_LIBEXPAT=no
 574 else
 575   AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
 576                         [XML_Parser p = XML_ParserCreate (0);])
 577   if test "$HAVE_LIBEXPAT" != yes; then
 578     if test "$with_expat" = yes; then
 579       AC_MSG_ERROR([expat is missing or unusable])
 580     else
 581       AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
 582     fi
 583   else
 584     save_LIBS=$LIBS
 585     LIBS="$LIBS $LIBEXPAT"
 586     AC_CHECK_FUNCS(XML_StopParser)
 587     LIBS=$save_LIBS
 588   fi
 589 fi
 590
 591 dnl Utility to simplify finding libpython.
 592 dnl $1 = pythonX.Y
 593 dnl $2 = the shell variable to assign the result to
 594 dnl      If libpython is found we store $version here.
 595 dnl $3 = additional flags to add to CPPFLAGS
 596 dnl $4 = additional flags to add to LIBS
 597
 598 AC_DEFUN([AC_TRY_LIBPYTHON],
 599 [
 600   version=$1
 601   define([have_libpython_var],$2)
 602   new_CPPFLAGS=$3
 603   new_LIBS=$4
 604   AC_MSG_CHECKING([for ${version}])
 605   save_CPPFLAGS=$CPPFLAGS
 606   save_LIBS=$LIBS
 607   CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
 608   LIBS="$LIBS $new_LIBS"
 609   found_usable_python=no
 610   AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "${version}/Python.h"]],
 611                                  [[Py_Initialize ();]]),
 612                  [have_libpython_var=${version}
 613                   found_usable_python=yes],
 614                  [CPPFLAGS=$save_CPPFLAGS
 615                   LIBS=$save_LIBS])
 616   AC_MSG_RESULT([${found_usable_python}])
 617 ])
 618
 619 dnl There are several different values for --with-python:
 620 dnl
 621 dnl no -   Don't include python support.
 622 dnl yes -  Include python support, error if it's missing.
 623 dnl        If we find python in $PATH, use it to fetch configure options,
 624 dnl        otherwise assume the compiler can find it with no help from us.
 625 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 626 dnl auto - Same as "yes", but if python is missing from the system,
 627 dnl        fall back to "no".
 628 dnl /path/to/python/exec-prefix -
 629 dnl        Use the python located in this directory.
 630 dnl        If /path/to/python/exec-prefix/bin/python exists, use it to find
 631 dnl        the compilation parameters.  Otherwise use
 632 dnl        -I/path/to/python/exec-prefix/include,
 633 dnl        -L/path/to/python/exec-prefix/lib.
 634 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 635 dnl        NOTE: This case is historical.  It is what was done for 7.0/7.1
 636 dnl        but is deprecated.
 637 dnl /path/to/python/executable -
 638 dnl        Run python-config.py with this version of python to fetch the
 639 dnl        compilation parameters.
 640 dnl        NOTE: This needn't be the real python executable.
 641 dnl        In a cross-compilation scenario (build != host), this could be
 642 dnl        a shell script that provides what python-config.py provides for
 643 dnl        --ldflags, --includes, --exec-prefix.
 644 dnl python-executable -
 645 dnl        Find python-executable in $PATH, and then handle the same as
 646 dnl        /path/to/python/executable.
 647 dnl
 648 dnl If a python program is specified, it is used to run python-config.py and
 649 dnl is passed --ldflags, --includes, --exec-prefix.
 650
 651 AC_ARG_WITH(python,
 652   AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
 653   [], [with_python=auto])
 654 AC_MSG_CHECKING([whether to use python])
 655 AC_MSG_RESULT([$with_python])
 656
 657 if test "${with_python}" = no; then
 658   AC_MSG_WARN([python support disabled; some features may be unavailable.])
 659   have_libpython=no
 660 else
 661   case "${with_python}" in
 662   /*)
 663     if test -d ${with_python}; then
 664       # Assume the python binary is ${with_python}/bin/python.
 665       python_prog="${with_python}/bin/python"
 666       python_prefix=
 667       if test ! -x "${python_prog}"; then
 668         # Fall back to gdb 7.0/7.1 behaviour.
 669         python_prog=missing
 670         python_prefix=${with_python}
 671       fi
 672     elif test -x "${with_python}"; then
 673       # While we can't run python compiled for $host (unless host == build),
 674       # the user could write a script that provides the needed information,
 675       # so we support that.
 676       python_prog=${with_python}
 677       python_prefix=
 678     else
 679       AC_ERROR(invalid value for --with-python)
 680     fi
 681     ;;
 682   */*)
 683     # Disallow --with-python=foo/bar.
 684     AC_ERROR(invalid value for --with-python)
 685     ;;
 686   *)
 687     # The user has either specified auto, yes, or the name of the python
 688     # program assumed to be in $PATH.
 689     python_prefix=
 690     case "${with_python}" in
 691     yes | auto)
 692       if test ${build} = ${host}; then
 693         AC_PATH_PROG(python_prog_path, python, missing)
 694         if test "${python_prog_path}" = missing; then
 695           python_prog=missing
 696         else
 697           python_prog=${python_prog_path}
 698         fi
 699       else
 700         # Not much we can do except assume the cross-compiler will find the
 701         # right files.
 702         python_prog=missing
 703       fi
 704       ;;
 705     *)
 706       # While we can't run python compiled for $host (unless host == build),
 707       # the user could write a script that provides the needed information,
 708       # so we support that.
 709       python_prog="${with_python}"
 710       AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
 711       if test "${python_prog_path}" = missing; then
 712         AC_ERROR(unable to find python program ${python_prog})
 713       fi
 714       ;;
 715     esac
 716   esac
 717
 718   if test "${python_prog}" != missing; then
 719     # We have a python program to use, but it may be too old.
 720     # Don't flag an error for --with-python=auto (the default).
 721     have_python_config=yes
 722     python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
 723     if test $? != 0; then
 724       have_python_config=failed
 725       if test "${with_python}" != auto; then
 726         AC_ERROR(failure running python-config --includes)
 727       fi
 728     fi
 729     python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
 730     if test $? != 0; then
 731       have_python_config=failed
 732       if test "${with_python}" != auto; then
 733         AC_ERROR(failure running python-config --ldflags)
 734       fi
 735     fi
 736     python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
 737     if test $? != 0; then
 738       have_python_config=failed
 739       if test "${with_python}" != auto; then
 740         AC_ERROR(failure running python-config --exec-prefix)
 741       fi
 742     fi
 743   else
 744     # Fall back to gdb 7.0/7.1 behaviour.
 745     if test -z ${python_prefix}; then
 746       python_includes=
 747       python_libs=
 748     else
 749       python_includes="-I${python_prefix}/include"
 750       python_libs="-L${python_prefix}/lib"
 751     fi
 752     have_python_config=no
 753   fi
 754
 755   # Having "/pythonX.Y" in the include path is awkward.
 756   # All those python headers get bubbled up to the top inviting lots
 757   # of random collisions.  GDB originally didn't use python-config to
 758   # find the compilation parameters and includes "pythonX.Y/" in the
 759   # path of the, umm, include file.  So strip away this part of the
 760   # output of python-config --includes.
 761   python_includes=`echo "${python_includes} " \
 762                         | sed -e 's,/python[[0-9]]*[[.]][[0-9]]* , ,g'`
 763
 764   # If we have python-config, only try the configuration it provides.
 765   # Otherwise fallback on the old way of trying different versions of
 766   # python in turn.
 767
 768   have_libpython=no
 769   if test "${have_python_config}" = yes; then
 770     python_version=`echo " ${python_libs} " \
 771                          | sed -e 's,^.* -l\(python[[0-9]]*[[.]][[0-9]]*\) .*$,\1,'`
 772     case "${python_version}" in
 773     python*)
 774       AC_TRY_LIBPYTHON(${python_version}, have_libpython,
 775                        ${python_includes}, ${python_libs})
 776       ;;
 777     *)
 778       AC_MSG_ERROR([unable to determine python version from ${python_libs}])
 779       ;;
 780     esac
 781   elif test "${have_python_config}" != failed; then
 782     if test "${have_libpython}" = no; then
 783       AC_TRY_LIBPYTHON(python2.7, have_libpython,
 784                        ${python_includes}, "${python_libs} -lpython2.7")
 785     fi
 786     if test "${have_libpython}" = no; then
 787       AC_TRY_LIBPYTHON(python2.6, have_libpython,
 788                        ${python_includes}, "${python_libs} -lpython2.6")
 789     fi
 790     if test ${have_libpython} = no; then
 791       AC_TRY_LIBPYTHON(python2.5, have_libpython,
 792                        ${python_includes}, "${python_libs} -lpython2.5")
 793     fi
 794     if test ${have_libpython} = no; then
 795       AC_TRY_LIBPYTHON(python2.4, have_libpython,
 796                        ${python_includes}, "${python_libs} -lpython2.4")
 797     fi
 798   fi
 799   if test "${have_libpython}" = python2.7; then
 800     AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
 801   elif test "${have_libpython}" = python2.6; then
 802     AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
 803   elif test "${have_libpython}" = python2.5; then
 804     AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
 805   elif test "${have_libpython}" = python2.4; then
 806     AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
 807   fi
 808
 809   if test "${have_libpython}" = no; then
 810     case "${with_python}" in
 811     yes)
 812       AC_MSG_ERROR([python is missing or unusable])
 813       ;;
 814     auto)
 815       AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
 816       ;;
 817     *)
 818       AC_MSG_ERROR([no usable python found at ${with_python}])
 819       ;;
 820     esac
 821   else
 822     if test -n "${python_prefix}"; then
 823       AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
 824                          [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
 825       GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
 826     fi
 827   fi
 828 fi
 829
 830 if test "${have_libpython}" != no; then
 831   AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
 832   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
 833   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
 834   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
 835   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
 836
 837   # Flags needed to compile Python code (taken from python-config --cflags).
 838   # We cannot call python-config directly because it will output whatever was
 839   # used when compiling the Python interpreter itself, including flags which
 840   # would make the python-related objects be compiled differently from the
 841   # rest of GDB (e.g., -O2 and -fPIC).
 842   if test "${GCC}" = yes; then
 843     tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
 844   fi
 845
 846   if test "x${tentative_python_cflags}" != x; then
 847     AC_MSG_CHECKING(compiler flags for python code)
 848     for flag in ${tentative_python_cflags}; do
 849       # Check that the compiler accepts it
 850       saved_CFLAGS="$CFLAGS"
 851       CFLAGS="$CFLAGS $flag"
 852       AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
 853       CFLAGS="$saved_CFLAGS"
 854     done
 855     AC_MSG_RESULT(${PYTHON_CFLAGS})
 856   fi
 857 else
 858   # Even if Python support is not compiled in, we need to have these files
 859   # included.
 860   CONFIG_OBS="$CONFIG_OBS python.o py-value.o py-prettyprint.o py-auto-load.o"
 861   CONFIG_SRCS="$CONFIG_SRCS python/python.c python/py-value.c \
 862         python/py-prettyprint.c python/py-auto-load.c"
 863 fi
 864 AC_SUBST(PYTHON_CFLAGS)
 865
 866 # ------------------------- #
 867 # Checks for header files.  #
 868 # ------------------------- #
 869
 870 AC_HEADER_DIRENT
 871 AC_HEADER_STAT
 872 AC_HEADER_STDC
 873 # elf_hp.h is for HP/UX 64-bit shared library support.
 874 # FIXME: kettenis/20030102: In most cases we include these (ctype.h, time.h)
 875 # unconditionally, so what's the point in checking these?
 876 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
 877                   thread_db.h gnu/libc-version.h signal.h stddef.h \
 878                   stdlib.h string.h memory.h strings.h sys/fault.h \
 879                   sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
 880                   sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
 881                   sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
 882                   sys/types.h sys/wait.h wait.h termios.h termio.h \
 883                   sgtty.h unistd.h elf_hp.h ctype.h time.h locale.h])
 884 AC_CHECK_HEADERS(link.h, [], [],
 885 [#if HAVE_SYS_TYPES_H
 886 # include <sys/types.h>
 887 #endif
 888 #if HAVE_NLIST_H
 889 # include <nlist.h>
 890 #endif
 891 ])
 892 AC_CHECK_HEADERS(sys/proc.h, [], [],
 893 [#if HAVE_SYS_PARAM_H
 894 # include <sys/param.h>
 895 #endif
 896 ])
 897 AC_CHECK_HEADERS(sys/user.h, [], [],
 898 [#if HAVE_SYS_PARAM_H
 899 # include <sys/param.h>
 900 #endif
 901 ])
 902
 903 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
 904 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
 905 # think that we don't have <curses.h> if we're using GCC.
 906 case $host_os in
 907   solaris2.[[789]])
 908     if test "$GCC" = yes; then
 909       AC_DEFINE(_MSE_INT_H, 1,
 910         [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
 911    Solaris 2.[789] when using GCC. ])
 912     fi ;;
 913 esac
 914 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
 915 AC_CHECK_HEADERS(term.h, [], [],
 916 [#if HAVE_CURSES_H
 917 # include <curses.h>
 918 #endif
 919 ])
 920
 921 # ------------------------- #
 922 # Checks for declarations.  #
 923 # ------------------------- #
 924
 925 AC_CHECK_DECLS([free, malloc, realloc, strerror, strstr, getopt,
 926                 snprintf, vsnprintf])
 927 AM_LC_MESSAGES
 928
 929 # ----------------------- #
 930 # Checks for structures.  #
 931 # ----------------------- #
 932
 933 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
 934
 935 # ------------------ #
 936 # Checks for types.  #
 937 # ------------------ #
 938
 939 AC_TYPE_SIGNAL
 940 AC_CHECK_TYPES(socklen_t, [], [],
 941 [#include <sys/types.h>
 942 #include <sys/socket.h>
 943 ])
 944
 945 # ------------------------------------- #
 946 # Checks for compiler characteristics.  #
 947 # ------------------------------------- #
 948
 949 AC_C_CONST
 950 AC_C_INLINE
 951 AC_C_BIGENDIAN
 952
 953 # ------------------------------ #
 954 # Checks for library functions.  #
 955 # ------------------------------ #
 956
 957 AC_FUNC_ALLOCA
 958 AC_FUNC_MMAP
 959 AC_FUNC_VFORK
 960 AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid \
 961                 getgid pipe poll pread64 resize_term sbrk setpgid setpgrp setsid \
 962                 sigaction sigprocmask sigsetmask socketpair syscall \
 963                 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
 964                 setrlimit getrlimit posix_madvise])
 965 AM_LANGINFO_CODESET
 966
 967 # Check the return and argument types of ptrace.  No canned test for
 968 # this, so roll our own.
 969 gdb_ptrace_headers='
 970 #if HAVE_SYS_TYPES_H
 971 # include <sys/types.h>
 972 #endif
 973 #if HAVE_SYS_PTRACE_H
 974 # include <sys/ptrace.h>
 975 #endif
 976 #if HAVE_UNISTD_H
 977 # include <unistd.h>
 978 #endif
 979 '
 980 # There is no point in checking if we don't have a prototype.
 981 AC_CHECK_DECLS(ptrace, [], [
 982   : ${gdb_cv_func_ptrace_ret='int'}
 983   : ${gdb_cv_func_ptrace_args='int,int,long,long'}
 984 ], $gdb_ptrace_headers)
 985 # Check return type.  Varargs (used on GNU/Linux) conflict with the
 986 # empty argument list, so check for that explicitly.
 987 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
 988   AC_TRY_COMPILE($gdb_ptrace_headers,
 989     [extern long ptrace (enum __ptrace_request, ...);],
 990     gdb_cv_func_ptrace_ret='long',
 991     AC_TRY_COMPILE($gdb_ptrace_headers,
 992       [extern int ptrace ();],
 993       gdb_cv_func_ptrace_ret='int',
 994       gdb_cv_func_ptrace_ret='long')))
 995 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
 996   [Define as the return type of ptrace.])
 997 # Check argument types.
 998 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
 999   AC_TRY_COMPILE($gdb_ptrace_headers,
1000     [extern long ptrace (enum __ptrace_request, ...);],
1001     [gdb_cv_func_ptrace_args='int,int,long,long'],[
1002 for gdb_arg1 in 'int' 'long'; do
1003  for gdb_arg2 in 'pid_t' 'int' 'long'; do
1004   for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
1005    for gdb_arg4 in 'int' 'long'; do
1006      AC_TRY_COMPILE($gdb_ptrace_headers, [
1007 extern $gdb_cv_func_ptrace_ret
1008   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
1009 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
1010     break 4;])
1011     for gdb_arg5 in 'int *' 'int' 'long'; do
1012      AC_TRY_COMPILE($gdb_ptrace_headers, [
1013 extern $gdb_cv_func_ptrace_ret
1014   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
1015 ], [
1016 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
1017     break 5;])
1018     done
1019    done
1020   done
1021  done
1022 done
1023 # Provide a safe default value.
1024 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1025 ])])
1026 ac_save_IFS=$IFS; IFS=','
1027 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
1028 IFS=$ac_save_IFS
1029 shift
1030 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
1031   [Define to the type of arg 3 for ptrace.])
1032 if test -n "$[5]"; then
1033   AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
1034     [Define to the type of arg 5 for ptrace.])
1035 fi
1036
1037 dnl AC_FUNC_SETPGRP does not work when cross compiling
1038 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1039 if test "$cross_compiling" = no; then
1040   AC_FUNC_SETPGRP
1041 else
1042   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1043     [AC_TRY_COMPILE([
1044 #include <unistd.h>
1045 ], [
1046   if (setpgrp(1,1) == -1)
1047     exit (0);
1048   else
1049     exit (1);
1050 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1051 if test $ac_cv_func_setpgrp_void = yes; then
1052   AC_DEFINE(SETPGRP_VOID, 1)
1053 fi
1054 fi
1055
1056 # Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do
1057 # since sigsetjmp might only be defined as a macro.
1058 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
1059 [AC_TRY_COMPILE([
1060 #include <setjmp.h>
1061 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
1062 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
1063 if test $gdb_cv_func_sigsetjmp = yes; then
1064   AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
1065 fi
1066
1067 # Assume we'll default to using the included libiberty regex.
1068 gdb_use_included_regex=yes
1069
1070 # However, if the system regex is GNU regex, then default to *not*
1071 # using the included regex.
1072 AC_CACHE_CHECK(
1073   [for GNU regex],
1074   [gdb_cv_have_gnu_regex],
1075   [AC_TRY_COMPILE(
1076     [#include <gnu-versions.h>],
1077     [#define REGEX_INTERFACE_VERSION 1
1078 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1079 # error "Version mismatch"
1080 #endif],
1081     gdb_cv_have_gnu_regex=yes,
1082     gdb_cv_have_gnu_regex=no)])
1083 if test $gdb_cv_have_gnu_regex = yes; then
1084   gdb_use_included_regex=no
1085 fi
1086
1087 AC_ARG_WITH(included-regex,
1088   AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1089   gdb_with_regex=$withval,
1090   gdb_with_regex=$gdb_use_included_regex)
1091 if test "$gdb_with_regex" = yes; then
1092   AC_DEFINE(USE_INCLUDED_REGEX, 1,
1093     [Define to 1 if the regex included in libiberty should be used.])
1094 fi
1095
1096 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1097 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1098 [#include <sys/param.h>
1099 #include <sys/proc.h>
1100 ])
1101
1102 # See if <sys/lwp.h> defines `struct lwp`.
1103 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1104 [AC_TRY_COMPILE([#include <sys/param.h>
1105 #include <sys/lwp.h>], [struct lwp l;],
1106 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1107 if test $gdb_cv_struct_lwp = yes; then
1108   AC_DEFINE(HAVE_STRUCT_LWP, 1,
1109             [Define to 1 if your system has struct lwp.])
1110 fi
1111
1112 # See if <machine/reg.h> degines `struct reg'.
1113 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1114 [AC_TRY_COMPILE([#include <sys/types.h>
1115 #include <machine/reg.h>], [struct reg r;],
1116 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1117 if test $gdb_cv_struct_reg = yes; then
1118   AC_DEFINE(HAVE_STRUCT_REG, 1,
1119             [Define to 1 if your system has struct reg in <machine/reg.h>.])
1120 fi
1121
1122 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1123 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1124 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1125                  [#include <machine/reg.h>])
1126
1127 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1128 AC_MSG_CHECKING(for PTRACE_GETREGS)
1129 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1130 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1131                 [PTRACE_GETREGS;],
1132                 [gdb_cv_have_ptrace_getregs=yes],
1133                 [gdb_cv_have_ptrace_getregs=no])])
1134 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1135 if test $gdb_cv_have_ptrace_getregs = yes; then
1136   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1137   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1138 fi
1139
1140 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1141 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1142 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1143 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1144                 [PTRACE_GETFPXREGS;],
1145                 [gdb_cv_have_ptrace_getfpxregs=yes],
1146                 [gdb_cv_have_ptrace_getfpxregs=no])])
1147 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1148 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1149   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1150   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1151 fi
1152
1153 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1154 AC_MSG_CHECKING(for PT_GETDBREGS)
1155 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1156 [AC_TRY_COMPILE([#include <sys/types.h>
1157 #include <sys/ptrace.h>],
1158                 [PT_GETDBREGS;],
1159                 [gdb_cv_have_pt_getdbregs=yes],
1160                 [gdb_cv_have_pt_getdbregs=no])])
1161 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1162 if test $gdb_cv_have_pt_getdbregs = yes; then
1163   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1164   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1165 fi
1166
1167 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1168 AC_MSG_CHECKING(for PT_GETXMMREGS)
1169 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1170 [AC_TRY_COMPILE([#include <sys/types.h>
1171 #include <sys/ptrace.h>],
1172                 [PT_GETXMMREGS;],
1173                 [gdb_cv_have_pt_getxmmregs=yes],
1174                 [gdb_cv_have_pt_getxmmregs=no])])
1175 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1176 if test $gdb_cv_have_pt_getxmmregs = yes; then
1177   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1178   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1179 fi
1180
1181 # Detect which type of /proc is in use, such as for Unixware or Solaris.
1182
1183 if test "${target}" = "${host}"; then
1184   case "${host}" in
1185   *-*-unixware* | *-*-sysv4.2* | *-*-sysv5* | *-*-interix* )
1186       AC_DEFINE(NEW_PROC_API, 1,
1187       [Define if you want to use new multi-fd /proc interface
1188        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
1189       ;;
1190   *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1191       AC_DEFINE(NEW_PROC_API, 1,
1192       [Define if you want to use new multi-fd /proc interface
1193        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
1194       ;;
1195   mips-sgi-irix5*)
1196       # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1197       AC_DEFINE([_KMEMUSER], 1,
1198       [Define to 1 so <sys/proc.h> gets a definition of anon_hdl.  Works
1199        around a <sys/proc.h> problem on IRIX 5.])
1200       ;;
1201   esac
1202 fi
1203
1204 if test "$ac_cv_header_sys_procfs_h" = yes; then
1205   BFD_HAVE_SYS_PROCFS_TYPE(pstatus_t)
1206   BFD_HAVE_SYS_PROCFS_TYPE(prrun_t)
1207   BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1208   BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1209   BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1210   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1211   BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1212   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset32_t)
1213   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1214   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1215   BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1216   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1217   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1218   BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1219
1220
1221   dnl Check for broken prfpregset_t type
1222
1223   dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1224   dnl prfpregset_t type (it's a typedef for the pointer to a struct
1225   dnl instead of the struct itself).  We detect this here, and work
1226   dnl around it in gdb_proc_service.h.
1227
1228   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1229     AC_MSG_CHECKING(whether prfpregset_t type is broken)
1230     AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1231       [AC_TRY_RUN([#include <sys/procfs.h>
1232        int main ()
1233        {
1234          if (sizeof (prfpregset_t) == sizeof (void *))
1235            return 1;
1236          return 0;
1237        }],
1238        gdb_cv_prfpregset_t_broken=no,
1239        gdb_cv_prfpregset_t_broken=yes,
1240        gdb_cv_prfpregset_t_broken=yes)])
1241     AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1242     if test $gdb_cv_prfpregset_t_broken = yes; then
1243       AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1244       [Define if the prfpregset_t type is broken.])
1245     fi
1246   fi
1247
1248   dnl Check for PIOCSET ioctl entry
1249
1250   AC_MSG_CHECKING(for PIOCSET ioctl entry in sys/procfs.h)
1251   AC_CACHE_VAL(gdb_cv_have_procfs_piocset,
1252   [AC_TRY_COMPILE([#include <unistd.h>
1253 #include <sys/types.h>
1254 #include <sys/procfs.h>
1255 ], [
1256     int dummy;;
1257     dummy = ioctl(0, PIOCSET, &dummy);
1258   ],
1259   gdb_cv_have_procfs_piocset=yes, gdb_cv_have_procfs_piocset=no)])
1260   AC_MSG_RESULT($gdb_cv_have_procfs_piocset)
1261   if test $gdb_cv_have_procfs_piocset = yes; then
1262     AC_DEFINE(HAVE_PROCFS_PIOCSET, 1,
1263     [Define if ioctl argument PIOCSET is available.])
1264   fi
1265 fi
1266
1267 dnl For native ports (host == target), check to see what kind of
1268 dnl legacy link.h support is needed.  (See solib-legacy.c.)
1269 if test ${host} = ${target} ; then
1270   dnl Check for struct link_map with l_ members which are indicative
1271   dnl of SVR4-like shared libraries
1272
1273   AC_MSG_CHECKING(for member l_addr in struct link_map)
1274   AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_l_members,
1275     [AC_TRY_COMPILE([#include <link.h>],
1276                     [struct link_map lm; (void) lm.l_addr;],
1277                     gdb_cv_have_struct_link_map_with_l_members=yes,
1278                     gdb_cv_have_struct_link_map_with_l_members=no)])
1279   AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_l_members)
1280   if test $gdb_cv_have_struct_link_map_with_l_members = yes; then
1281     AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS,1,
1282     [Define if <link.h> exists and defines struct link_map which has
1283      members with an ``l_'' prefix.  (For Solaris, SVR4, and
1284      SVR4-like systems.)])
1285   fi
1286
1287   dnl Check for struct link_map with lm_ members which are indicative
1288   dnl of SunOS-like shared libraries
1289
1290   AC_MSG_CHECKING(for member lm_addr in struct link_map)
1291   AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_lm_members,
1292     [AC_TRY_COMPILE([#include <sys/types.h>
1293 #include <link.h>],
1294                     [struct link_map lm; (void) lm.lm_addr;],
1295                     gdb_cv_have_struct_link_map_with_lm_members=yes,
1296                     gdb_cv_have_struct_link_map_with_lm_members=no)])
1297   AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_lm_members)
1298   if test $gdb_cv_have_struct_link_map_with_lm_members = yes; then
1299     AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS, 1,
1300     [Define if <link.h> exists and defines struct link_map which has
1301      members with an ``lm_'' prefix.  (For SunOS.)])
1302   fi
1303
1304   dnl Check for struct so_map with som_ members which are found on
1305   dnl some *BSD systems.
1306
1307   AC_MSG_CHECKING(for member som_addr in struct so_map)
1308   AC_CACHE_VAL(gdb_cv_have_struct_so_map_with_som_members,
1309     [AC_TRY_COMPILE([#include <sys/types.h>
1310 #ifdef HAVE_NLIST_H
1311 #include <nlist.h>
1312 #endif
1313 #include <link.h>],
1314                     [struct so_map lm; (void) lm.som_addr;],
1315                     gdb_cv_have_struct_so_map_with_som_members=yes,
1316                     gdb_cv_have_struct_so_map_with_som_members=no)])
1317   AC_MSG_RESULT($gdb_cv_have_struct_so_map_with_som_members)
1318   if test $gdb_cv_have_struct_so_map_with_som_members = yes; then
1319     AC_DEFINE(HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS, 1,
1320     [Define if <link.h> exists and defines a struct so_map which has
1321      members with an ``som_'' prefix.  (Found on older *BSD systems.)])
1322   fi
1323
1324   dnl Check for struct link_map32 type, which allows a 64-bit Solaris
1325   dnl debugger to debug a 32-bit Solaris app with 32-bit shared libraries.
1326
1327   AC_MSG_CHECKING(for struct link_map32 in sys/link.h)
1328   AC_CACHE_VAL(gdb_cv_have_struct_link_map32,
1329     [AC_TRY_COMPILE([#define _SYSCALL32
1330 #include <sys/link.h>], [struct link_map32 l;],
1331      gdb_cv_have_struct_link_map32=yes,
1332      gdb_cv_have_struct_link_map32=no)])
1333   AC_MSG_RESULT($gdb_cv_have_struct_link_map32)
1334   if test $gdb_cv_have_struct_link_map32 = yes; then
1335     AC_DEFINE(HAVE_STRUCT_LINK_MAP32, 1,
1336     [Define if <sys/link.h> has struct link_map32])
1337     AC_DEFINE(_SYSCALL32, 1,
1338     [Define if <sys/link.h> has link_map32 (solaris sparc-64 target)])
1339   fi
1340 fi
1341
1342 # Check if the compiler supports the `long long' type.
1343
1344 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1345                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1346 [[extern long long foo;]],
1347 [[switch (foo & 2) { case 0: return 1; }]])],
1348                                   gdb_cv_c_long_long=yes,
1349                                   gdb_cv_c_long_long=no)])
1350 if test $gdb_cv_c_long_long = yes; then
1351   AC_DEFINE(CC_HAS_LONG_LONG, 1,
1352             [Define to 1 if the compiler supports long long.])
1353 fi
1354
1355 # Check if the compiler and runtime support printing long longs.
1356
1357 AC_CACHE_CHECK([for long long support in printf],
1358                gdb_cv_printf_has_long_long,
1359                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1360 [[char buf[32];
1361   long long l = 0;
1362   l = (l << 16) + 0x0123;
1363   l = (l << 16) + 0x4567;
1364   l = (l << 16) + 0x89ab;
1365   l = (l << 16) + 0xcdef;
1366   sprintf (buf, "0x%016llx", l);
1367   return (strcmp ("0x0123456789abcdef", buf));]])],
1368                               gdb_cv_printf_has_long_long=yes,
1369                               gdb_cv_printf_has_long_long=no,
1370                               gdb_cv_printf_has_long_long=no)])
1371 if test $gdb_cv_printf_has_long_long = yes; then
1372   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1373             [Define to 1 if the "%ll" format works to print long longs.])
1374 fi
1375
1376 # Check if the compiler and runtime support printing decfloats.
1377
1378 AC_CACHE_CHECK([for decfloat support in printf],
1379                gdb_cv_printf_has_decfloat,
1380                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1381 [[char buf[64];
1382   _Decimal32 d32 = 1.2345df;
1383   _Decimal64 d64 = 1.2345dd;
1384   _Decimal128 d128 = 1.2345dl;
1385   sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1386   return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1387                               gdb_cv_printf_has_decfloat=yes,
1388                               gdb_cv_printf_has_decfloat=no,
1389                               gdb_cv_printf_has_decfloat=no)])
1390 if test $gdb_cv_printf_has_decfloat = yes; then
1391   AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1392             [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1393 fi
1394
1395 # Check if the compiler supports the `long double' type.  We can't use
1396 # AC_C_LONG_DOUBLE because that one does additional checks on the
1397 # constants defined in <float.h> that fail on some systems,
1398 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1399
1400 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1401                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1402                                   gdb_cv_c_long_double=yes,
1403                                   gdb_cv_c_long_double=no)])
1404 if test $gdb_cv_c_long_double = yes; then
1405   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1406            [Define to 1 if the compiler supports long double.])
1407 fi
1408
1409 # Check if the compiler and runtime support printing long doubles.
1410
1411 AC_CACHE_CHECK([for long double support in printf],
1412                gdb_cv_printf_has_long_double,
1413                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1414 [[char buf[16];
1415   long double f = 3.141592653;
1416   sprintf (buf, "%Lg", f);
1417   return (strncmp ("3.14159", buf, 7));]])],
1418                               gdb_cv_printf_has_long_double=yes,
1419                               gdb_cv_printf_has_long_double=no,
1420                               gdb_cv_printf_has_long_double=no)])
1421 if test $gdb_cv_printf_has_long_double = yes; then
1422   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1423             [Define to 1 if the "%Lg" format works to print long doubles.])
1424 fi
1425
1426 # Check if the compiler and runtime support scanning long doubles.
1427
1428 AC_CACHE_CHECK([for long double support in scanf],
1429                gdb_cv_scanf_has_long_double,
1430                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1431 [[#include <stdio.h>]],
1432 [[char *buf = "3.141592653";
1433   long double f = 0;
1434   sscanf (buf, "%Lg", &f);
1435   return !(f > 3.14159 && f < 3.14160);]])],
1436                               gdb_cv_scanf_has_long_double=yes,
1437                               gdb_cv_scanf_has_long_double=no,
1438                               gdb_cv_scanf_has_long_double=no)])
1439 if test $gdb_cv_scanf_has_long_double = yes; then
1440   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1441             [Define to 1 if the "%Lg" format works to scan long doubles.])
1442 fi
1443
1444 case ${host_os} in
1445 aix*)
1446   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1447     SAVE_LDFLAGS=$LDFLAGS
1448
1449     case $GCC in
1450     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1451     *) gdb_cv_bigtoc=-bbigtoc ;;
1452     esac
1453
1454     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1455     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1456     LDFLAGS="${SAVE_LDFLAGS}"
1457   ])
1458   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1459   ;;
1460 esac
1461
1462 AC_MSG_CHECKING(for the dynamic export flag)
1463 dynamic_list=false
1464 if test "${gdb_native}" = yes; then
1465    # The dynamically loaded libthread_db needs access to symbols in the gdb
1466    # executable.  Older GNU ld supports --export-dynamic but --dynamic-list
1467    # may not be supported there.
1468    old_LDFLAGS="$LDFLAGS"
1469    # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1470    RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1471    LDFLAGS="$LDFLAGS $RDYNAMIC"
1472    if test "${have_libpython}" = no; then
1473      AC_TRY_LINK([], [], [dynamic_list=true])
1474    else
1475      # Workaround http://bugs.python.org/issue4434 where static
1476      # libpythonX.Y.a would get its symbols required for
1477      # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1478      # Problem does not happen for the recommended libpythonX.Y.so linkage.
1479      old_CFLAGS="$CFLAGS"
1480      CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1481      AC_RUN_IFELSE(
1482        AC_LANG_PROGRAM(
1483          [#include "]${have_libpython}[/Python.h"],
1484          [int err;
1485           Py_Initialize ();
1486           err = PyRun_SimpleString ("import itertools\n");
1487           Py_Finalize ();
1488           return err == 0 ? 0 : 1;]),
1489        [dynamic_list=true], [], [true])
1490      CFLAGS="$old_CFLAGS"
1491    fi
1492    LDFLAGS="$old_LDFLAGS"
1493 fi
1494 if $dynamic_list; then
1495   found="-Wl,--dynamic-list"
1496   RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1497 else
1498   found="-rdynamic"
1499   RDYNAMIC="-rdynamic"
1500 fi
1501 AC_SUBST(RDYNAMIC)
1502 AC_MSG_RESULT($found)
1503
1504 dnl For certain native configurations, we need to check whether thread
1505 dnl support can be built in or not.
1506 dnl
1507 dnl Note that we only want this if we are both native (host == target),
1508 dnl and not doing a canadian cross build (build == host).
1509
1510 if test ${build} = ${host} -a ${host} = ${target} ; then
1511    case ${host_os} in
1512    hpux*)
1513       AC_MSG_CHECKING(for HPUX/OSF thread support)
1514       if test -f /usr/include/dce/cma_config.h ; then
1515          if test "$GCC" = "yes" ; then
1516             AC_MSG_RESULT(yes)
1517             AC_DEFINE(HAVE_HPUX_THREAD_SUPPORT, 1,
1518             [Define if you have HPUX threads])
1519             CONFIG_OBS="${CONFIG_OBS} hpux-thread.o"
1520             CONFIG_SRCS="${CONFIG_SRCS} hpux-thread.c"
1521          else
1522             AC_MSG_RESULT(no (suppressed because you are not using GCC))
1523          fi
1524       else
1525          AC_MSG_RESULT(no)
1526       fi
1527       ;;
1528    solaris*)
1529       # See if thread_db library is around for Solaris thread debugging.
1530       # Note that we must explicitly test for version 1 of the library
1531       # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1532       # the same API.
1533       AC_MSG_CHECKING(for Solaris thread debugging library)
1534       if test -f /usr/lib/libthread_db.so.1 ; then
1535          AC_MSG_RESULT(yes)
1536          AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1537          [Define if using Solaris thread debugging.])
1538          CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1539          CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1540          AC_CHECK_LIB(dl, dlopen)
1541          CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1542          # Sun randomly tweaked the prototypes in <proc_service.h>
1543          # at one point.
1544          AC_MSG_CHECKING(if <proc_service.h> is old)
1545          AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1546             AC_TRY_COMPILE([
1547                 #include <proc_service.h>
1548                 ps_err_e ps_pdwrite
1549                     (struct ps_prochandle*, psaddr_t, const void*, size_t);
1550             ],, gdb_cv_proc_service_is_old=no,
1551                 gdb_cv_proc_service_is_old=yes)
1552          ])
1553          AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1554          if test $gdb_cv_proc_service_is_old = yes; then
1555             AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1556             [Define if <proc_service.h> on solaris uses int instead of
1557              size_t, and assorted other type changes.])
1558          fi
1559       else
1560          AC_MSG_RESULT(no)
1561       fi
1562       ;;
1563    aix*)
1564       AC_MSG_CHECKING(for AiX thread debugging library)
1565       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1566                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1567                                    [#ifndef PTHDB_VERSION_3
1568                                     #error
1569                                     #endif],
1570                                    gdb_cv_have_aix_thread_debug=yes,
1571                                    gdb_cv_have_aix_thread_debug=no)])
1572       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1573       if test $gdb_cv_have_aix_thread_debug = yes; then
1574          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1575          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1576          CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -lpthdebug"
1577       fi
1578       ;;
1579    esac
1580    AC_SUBST(CONFIG_LDFLAGS)
1581 fi
1582
1583 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1584 dnl other error codes.
1585 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1586    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1587                   gdb_cv_thread_db_h_has_td_notalloc,
1588      AC_TRY_COMPILE(
1589        [#include <thread_db.h>],
1590        [int i = TD_NOTALLOC;],
1591        gdb_cv_thread_db_h_has_td_notalloc=yes,
1592        gdb_cv_thread_db_h_has_td_notalloc=no
1593      )
1594    )
1595    AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1596                   gdb_cv_thread_db_h_has_td_version,
1597      AC_TRY_COMPILE(
1598        [#include <thread_db.h>],
1599        [int i = TD_VERSION;],
1600        gdb_cv_thread_db_h_has_td_version=yes,
1601        gdb_cv_thread_db_h_has_td_version=no
1602      )
1603    )
1604    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1605                   gdb_cv_thread_db_h_has_td_notls,
1606      AC_TRY_COMPILE(
1607        [#include <thread_db.h>],
1608        [int i = TD_NOTLS;],
1609        gdb_cv_thread_db_h_has_td_notls=yes,
1610        gdb_cv_thread_db_h_has_td_notls=no
1611      )
1612    )
1613 fi
1614 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1615   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1616             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1617 fi
1618 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1619   AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1620             [Define if <thread_db.h> has the TD_VERSION error code.])
1621 fi
1622 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1623   AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1624             [Define if <thread_db.h> has the TD_NOTLS error code.])
1625 fi
1626
1627 dnl See if we have a sys/syscall header file that has __NR_tkill.
1628 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1629    AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1630                   gdb_cv_sys_syscall_h_has_tkill,
1631      AC_TRY_COMPILE(
1632        [#include <sys/syscall.h>],
1633        [int i = __NR_tkill;],
1634        gdb_cv_sys_syscall_h_has_tkill=yes,
1635        gdb_cv_sys_syscall_h_has_tkill=no
1636      )
1637    )
1638 fi
1639 dnl See if we can issue tkill syscall.
1640 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then
1641   AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1642 fi
1643
1644 dnl Check if we can disable the virtual address space randomization.
1645 dnl The functionality of setarch -R.
1646 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1647 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1648 #      if !HAVE_DECL_ADDR_NO_RANDOMIZE
1649 #       define ADDR_NO_RANDOMIZE 0x0040000
1650 #      endif
1651        /* Test the flag could be set and stays set.  */
1652        personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1653        if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1654            return 1])])
1655 AC_RUN_IFELSE([PERSONALITY_TEST],
1656               [have_personality=true],
1657               [have_personality=false],
1658               [AC_LINK_IFELSE([PERSONALITY_TEST],
1659                               [have_personality=true],
1660                               [have_personality=false])])
1661 if $have_personality
1662 then
1663     AC_DEFINE([HAVE_PERSONALITY], 1,
1664               [Define if you support the personality syscall.])
1665 fi
1666
1667 dnl Handle optional features that can be enabled.
1668
1669 target_sysroot_reloc=0
1670 AC_ARG_WITH(sysroot,
1671 AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@], [search for usr/lib et al within DIR]),
1672 [
1673  case ${with_sysroot} in
1674  yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
1675  *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
1676  esac
1677
1678  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
1679
1680  if test "x$prefix" = xNONE; then
1681   test_prefix=/usr/local
1682  else
1683   test_prefix=$prefix
1684  fi
1685  if test "x$exec_prefix" = xNONE || test "x$exec_prefix" = 'x${prefix}'; then
1686   test_exec_prefix=$test_prefix
1687  else
1688   test_exec_prefix=$exec_prefix
1689  fi
1690  case ${TARGET_SYSTEM_ROOT} in
1691  "${test_prefix}"|"${test_prefix}/"*|\
1692  "${test_exec_prefix}"|"${test_exec_prefix}/"*|\
1693  '${prefix}'|'${prefix}/'*|\
1694  '${exec_prefix}'|'${exec_prefix}/'*)
1695    target_sysroot_reloc=1
1696    ;;
1697  esac
1698 ], [
1699  TARGET_SYSTEM_ROOT=
1700  TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
1701 ])
1702 TARGET_SYSTEM_ROOT_DEFINE="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE=$target_sysroot_reloc"
1703 AC_SUBST(TARGET_SYSTEM_ROOT)
1704 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
1705
1706 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1707     [automatically load a system-wide gdbinit file],
1708     [])
1709
1710 AC_ARG_ENABLE(werror,
1711   AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
1712   [case "${enableval}" in
1713      yes | y) ERROR_ON_WARNING="yes" ;;
1714      no | n)  ERROR_ON_WARNING="no" ;;
1715      *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1716    esac])
1717
1718 # Enable -Werror by default when using gcc
1719 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" ; then
1720     ERROR_ON_WARNING=yes
1721 fi
1722
1723 WERROR_CFLAGS=""
1724 if test "${ERROR_ON_WARNING}" = yes ; then
1725     WERROR_CFLAGS="-Werror"
1726 fi
1727
1728 # The entries after -Wno-pointer-sign are disabled warnings which may
1729 # be enabled in the future, which can not currently be used to build
1730 # GDB.
1731 # NOTE: If you change this list, remember to update
1732 # gdb/doc/gdbint.texinfo.
1733 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
1734 -Wformat-nonliteral -Wno-pointer-sign \
1735 -Wno-unused -Wunused-value -Wunused-function \
1736 -Wno-switch -Wno-char-subscripts"
1737
1738 # Enable -Wno-format by default when using gcc on mingw since many
1739 # GCC versions complain about %I64.
1740 case "${host}" in
1741   *-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;
1742 esac
1743
1744 AC_ARG_ENABLE(build-warnings,
1745 AS_HELP_STRING([--enable-build-warnings], [enable build-time compiler warnings if gcc is used]),
1746 [case "${enableval}" in
1747   yes)  ;;
1748   no)   build_warnings="-w";;
1749   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1750         build_warnings="${build_warnings} ${t}";;
1751   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1752         build_warnings="${t} ${build_warnings}";;
1753   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1754 esac
1755 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1756   echo "Setting compiler warning flags = $build_warnings" 6>&1
1757 fi])dnl
1758 AC_ARG_ENABLE(gdb-build-warnings,
1759 AS_HELP_STRING([--enable-gdb-build-warnings], [enable GDB specific build-time compiler warnings if gcc is used]),
1760 [case "${enableval}" in
1761   yes)  ;;
1762   no)   build_warnings="-w";;
1763   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1764         build_warnings="${build_warnings} ${t}";;
1765   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1766         build_warnings="${t} ${build_warnings}";;
1767   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1768 esac
1769 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1770   echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
1771 fi])dnl
1772 WARN_CFLAGS=""
1773 if test "x${build_warnings}" != x -a "x$GCC" = xyes
1774 then
1775     AC_MSG_CHECKING(compiler warning flags)
1776     # Separate out the -Werror flag as some files just cannot be
1777     # compiled with it enabled.
1778     for w in ${build_warnings}; do
1779         case $w in
1780         -Werr*) WERROR_CFLAGS=-Werror ;;
1781         *) # Check that GCC accepts it
1782             saved_CFLAGS="$CFLAGS"
1783             CFLAGS="$CFLAGS $w"
1784             AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
1785             CFLAGS="$saved_CFLAGS"
1786         esac
1787     done
1788     AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
1789 fi
1790 AC_SUBST(WARN_CFLAGS)
1791 AC_SUBST(WERROR_CFLAGS)
1792
1793 # In the Cygwin environment, we need some additional flags.
1794 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1795 [AC_EGREP_CPP(lose, [
1796 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1797 lose
1798 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1799
1800
1801 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1802 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1803 case ${host} in
1804   *go32* ) SER_HARDWIRE=ser-go32.o ;;
1805   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1806   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1807 esac
1808 AC_SUBST(SER_HARDWIRE)
1809
1810 # libreadline needs libuser32.a in a cygwin environment
1811 WIN32LIBS=
1812 if test x$gdb_cv_os_cygwin = xyes; then
1813     WIN32LIBS="-luser32"
1814     case "${target}" in
1815         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1816         ;;
1817     esac
1818 fi
1819
1820 # The ser-tcp.c module requires sockets.
1821 case ${host} in
1822   *mingw32*)
1823     AC_DEFINE(USE_WIN32API, 1,
1824               [Define if we should use the Windows API, instead of the
1825                POSIX API.  On Windows, we use the Windows API when
1826                building for MinGW, but the POSIX API when building
1827                for Cygwin.])
1828     WIN32LIBS="$WIN32LIBS -lws2_32"
1829     ;;
1830 esac
1831 AC_SUBST(WIN32LIBS)
1832
1833 # Add ELF support to GDB, but only if BFD includes ELF support.
1834 OLD_CFLAGS=$CFLAGS
1835 OLD_LDFLAGS=$LDFLAGS
1836 OLD_LIBS=$LIBS
1837 CFLAGS="$CFLAGS -I${srcdir}/../include -I../bfd -I${srcdir}/../bfd"
1838 LDFLAGS="$LDFLAGS -L../bfd -L../libiberty"
1839 intl=`echo $LIBINTL | sed 's,${top_builddir}/,,g'`
1840 LIBS="-lbfd -liberty $intl $LIBS"
1841 AC_CACHE_CHECK([for ELF support in BFD], gdb_cv_var_elf,
1842 [AC_TRY_LINK(
1843 [#include <stdlib.h>
1844 #include "bfd.h"
1845 #include "elf-bfd.h"
1846 ],
1847 [bfd *abfd = NULL; bfd_get_elf_phdr_upper_bound (abfd); ],
1848 gdb_cv_var_elf=yes, gdb_cv_var_elf=no)])
1849 if test $gdb_cv_var_elf = yes; then
1850   CONFIG_OBS="$CONFIG_OBS elfread.o"
1851   AC_DEFINE(HAVE_ELF, 1,
1852             [Define if ELF support should be included.])
1853 fi
1854 CFLAGS=$OLD_CFLAGS
1855 LDFLAGS=$OLD_LDFLAGS
1856 LIBS=$OLD_LIBS
1857
1858 # Add any host-specific objects to GDB.
1859 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1860
1861 LIBGUI="../libgui/src/libgui.a"
1862 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1863 AC_SUBST(LIBGUI)
1864 AC_SUBST(GUI_CFLAGS_X)
1865
1866 WIN32LDAPP=
1867 AC_SUBST(WIN32LIBS)
1868 AC_SUBST(WIN32LDAPP)
1869
1870 case "${host}" in
1871 *-*-cygwin* | *-*-mingw* )
1872     configdir="win"
1873     ;;
1874 *)
1875     configdir="unix"
1876     ;;
1877 esac
1878
1879 GDBTKLIBS=
1880 if test "${enable_gdbtk}" = "yes"; then
1881
1882     # Gdbtk must have an absolute path to srcdir in order to run
1883     # properly when not installed.
1884     here=`pwd`
1885     cd ${srcdir}
1886     GDBTK_SRC_DIR=`pwd`
1887     cd $here
1888
1889     SC_PATH_TCLCONFIG
1890
1891     # If $no_tk is nonempty, then we can't do Tk, and there is no
1892     # point to doing Tcl.
1893     SC_PATH_TKCONFIG
1894
1895     if test -z "${no_tcl}" -a -z "${no_tk}"; then
1896         SC_LOAD_TCLCONFIG
1897
1898         # Check for in-tree tcl
1899         here=`pwd`
1900         cd ${srcdir}/..
1901         topdir=`pwd`
1902         cd ${here}
1903
1904         intree="no"
1905         if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
1906           intree="yes"
1907         fi
1908
1909         # Find Tcl private headers
1910         if test x"${intree}" = xno; then
1911           CY_AC_TCL_PRIVATE_HEADERS
1912           TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
1913           TCL_LIBRARY="${TCL_LIB_SPEC}"
1914           TCL_DEPS=""
1915         else
1916           # If building tcl in the same src tree, private headers
1917           # are not needed, but we need to be sure to use the right
1918           # headers library
1919           TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
1920           TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
1921           TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
1922         fi
1923         AC_SUBST(TCL_INCLUDE)
1924         AC_SUBST(TCL_LIBRARY)
1925         AC_SUBST(TCL_DEPS)
1926
1927         SC_LOAD_TKCONFIG
1928
1929         # Check for in-tree Tk
1930         intree="no"
1931         if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
1932           intree="yes"
1933         fi
1934
1935         # Find Tk private headers
1936         if test x"${intree}" = xno; then
1937           CY_AC_TK_PRIVATE_HEADERS
1938           TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
1939           TK_LIBRARY=${TK_LIB_SPEC}
1940           TK_DEPS=""
1941         else
1942           TK_INCLUDE="-I${TK_SRC_DIR}/generic"
1943           TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
1944           TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
1945         fi
1946         AC_SUBST(TK_INCLUDE)
1947         AC_SUBST(TK_LIBRARY)
1948         AC_SUBST(TK_DEPS)
1949         AC_SUBST(TK_XINCLUDES)
1950
1951         ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
1952
1953         # Include some libraries that Tcl and Tk want.
1954         TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
1955         # Yes, the ordering seems wrong here.  But it isn't.
1956         # TK_LIBS is the list of libraries that need to be linked
1957         # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
1958         # were in LIBS then any link tests after this point would
1959         # try to include things like `$(LIBGUI)', which wouldn't work.
1960         GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
1961
1962         CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
1963         CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
1964         CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
1965         CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
1966         CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
1967         CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
1968         CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
1969
1970         if test x$gdb_cv_os_cygwin = xyes; then
1971           WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
1972           WIN32LDAPP="-Wl,--subsystem,console"
1973           CONFIG_OBS="${CONFIG_OBS} gdbres.o"
1974         fi
1975
1976         AC_CONFIG_SUBDIRS(gdbtk)
1977     fi
1978 fi
1979
1980 AC_SUBST(X_CFLAGS)
1981 AC_SUBST(X_LDFLAGS)
1982 AC_SUBST(X_LIBS)
1983 AC_SUBST(GDBTKLIBS)
1984 AC_SUBST(GDBTK_CFLAGS)
1985 AC_SUBST(GDBTK_SRC_DIR)
1986
1987 AC_PATH_X
1988
1989 # Unlike the sim directory, whether a simulator is linked is controlled by
1990 # presence of a gdb_sim definition in the target configure.tgt entry.
1991 # This code just checks for a few cases where we'd like to ignore those
1992 # definitions, even when they're present in the '.mt' file.  These cases
1993 # are when --disable-sim is specified, or if the simulator directory is
1994 # not part of the source tree.
1995 #
1996 AC_ARG_ENABLE(sim,
1997 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
1998 [echo "enable_sim = $enable_sim";
1999  echo "enableval = ${enableval}";
2000  case "${enableval}" in
2001   yes) ignore_sim=false ;;
2002   no)  ignore_sim=true ;;
2003   *)   ignore_sim=false ;;
2004  esac],
2005 [ignore_sim=false])
2006
2007 if test ! -d "${srcdir}/../sim"; then
2008   ignore_sim=true
2009 fi
2010
2011 SIM=
2012 SIM_OBS=
2013 if test "${ignore_sim}" = "false"; then
2014   if test x"${gdb_sim}" != x ; then
2015     SIM="${gdb_sim}"
2016     SIM_OBS="remote-sim.o"
2017     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2018   fi
2019 fi
2020 AC_SUBST(SIM)
2021 AC_SUBST(SIM_OBS)
2022
2023 AC_SUBST(ENABLE_CFLAGS)
2024 AC_SUBST(PROFILE_CFLAGS)
2025
2026 AC_SUBST(CONFIG_OBS)
2027 AC_SUBST(CONFIG_DEPS)
2028 AC_SUBST(CONFIG_SRCS)
2029 AC_SUBST(CONFIG_ALL)
2030 AC_SUBST(CONFIG_CLEAN)
2031 AC_SUBST(CONFIG_INSTALL)
2032 AC_SUBST(CONFIG_UNINSTALL)
2033
2034 # List of host floatformats.
2035 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2036 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2037 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2038
2039 # target_subdir is used by the testsuite to find the target libraries.
2040 target_subdir=
2041 if test "${host}" != "${target}"; then
2042     target_subdir="${target_alias}/"
2043 fi
2044 AC_SUBST(target_subdir)
2045
2046 frags=
2047 if test "${gdb_native}" = "yes"; then
2048   host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2049   if test ! -f ${host_makefile_frag}; then
2050     AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2051   fi
2052   frags="$frags $host_makefile_frag"
2053 else
2054   host_makefile_frag=/dev/null
2055 fi
2056
2057 AC_SUBST_FILE(host_makefile_frag)
2058 AC_SUBST(frags)
2059
2060 changequote(,)dnl
2061 if test "${gdb_native}" = "yes"; then
2062 # We pick this up from the host configuration file (.mh) because we
2063 # do not have a native configuration Makefile fragment.
2064 nativefile=`sed -n '
2065 s/NAT_FILE[     ]*=[    ]*\([^  ]*\)/\1/p
2066 ' ${host_makefile_frag}`
2067 fi
2068 changequote([,])
2069
2070 if test x"${gdb_osabi}" != x ; then
2071     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2072                        [Define to the default OS ABI for this configuration.])
2073 fi
2074
2075 # Enable multi-ice-gdb-server.
2076 AC_ARG_ENABLE(multi-ice,
2077 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2078   [case $enableval in
2079     yes | no)
2080       ;;
2081     *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2082   esac])
2083 if test "x$enable_multi_ice" = xyes; then
2084    AC_CONFIG_SUBDIRS(multi-ice)
2085 fi
2086
2087 # We only build gdbserver automatically in a native configuration.
2088 if test "$gdb_native" = "yes"; then
2089   AC_MSG_CHECKING(whether gdbserver is supported on this host)
2090   if test "x$build_gdbserver" = xyes; then
2091     AC_MSG_RESULT(yes)
2092     AC_CONFIG_SUBDIRS(gdbserver)
2093   else
2094     AC_MSG_RESULT(no)
2095   fi
2096 fi
2097
2098 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2099 # to an empty version.
2100
2101 files=
2102 links=
2103
2104 rm -f nm.h
2105 if test "${nativefile}" != ""; then
2106     case "${nativefile}" in
2107       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2108       * ) GDB_NM_FILE="${nativefile}"
2109     esac
2110     files="${files} ${GDB_NM_FILE}"
2111     links="${links} nm.h"
2112     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2113 fi
2114 AC_SUBST(GDB_NM_FILE)
2115
2116 AC_LINK_FILES($files, $links)
2117
2118 dnl Check for exe extension set on certain hosts (e.g. Win32)
2119 AC_EXEEXT
2120
2121 dnl  Detect the character set used by this host.
2122 dnl  At the moment, we just assume it's UTF-8.
2123 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2124           [Define to be a string naming the default host character set.])
2125
2126 AC_OUTPUT(Makefile .gdbinit:gdbinit.in gnulib/Makefile,
2127 [
2128 case x$CONFIG_HEADERS in
2129 xconfig.h:config.in)
2130 echo > stamp-h ;;
2131 esac
2132 ])
2133
2134 exit 0