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