gdb/configure.ac

   1 dnl Autoconf configure script for GDB, the GNU debugger.
   2 dnl Copyright (C) 1995-2020 Free Software Foundation, Inc.
   3 dnl
   4 dnl This file is part of GDB.
   5 dnl
   6 dnl This program is free software; you can redistribute it and/or modify
   7 dnl it under the terms of the GNU General Public License as published by
   8 dnl the Free Software Foundation; either version 3 of the License, or
   9 dnl (at your option) any later version.
  10 dnl
  11 dnl This program is distributed in the hope that it will be useful,
  12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 dnl GNU General Public License for more details.
  15 dnl
  16 dnl You should have received a copy of the GNU General Public License
  17 dnl along with this program.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 dnl Process this file with autoconf to produce a configure script.
  20
  21 m4_include(../config/debuginfod.m4)
  22
  23 AC_INIT(main.c)
  24 AC_CONFIG_HEADERS(config.h:config.in, [echo > stamp-h])
  25 AM_MAINTAINER_MODE
  26
  27 AC_PROG_CC
  28 AC_PROG_CXX
  29
  30 AC_USE_SYSTEM_EXTENSIONS
  31 ACX_LARGEFILE
  32 AM_PROG_CC_STDC
  33 AM_PROG_INSTALL_STRIP
  34
  35 AC_CONFIG_AUX_DIR(..)
  36 AC_CANONICAL_SYSTEM
  37 AC_ARG_PROGRAM
  38
  39 # We require a C++11 compiler.  Check if one is available, and if
  40 # necessary, set CXX_DIALECT to some -std=xxx switch.
  41 AX_CXX_COMPILE_STDCXX(11, , mandatory)
  42
  43 # Dependency checking.
  44 ZW_CREATE_DEPDIR
  45 ZW_PROG_COMPILER_DEPENDENCIES([CC])
  46
  47 dnl List of object files and targets accumulated by configure.
  48
  49 CONFIG_OBS=
  50 CONFIG_DEPS=
  51 CONFIG_SRCS=
  52 ENABLE_CFLAGS=
  53
  54 CONFIG_ALL=
  55 CONFIG_CLEAN=
  56 CONFIG_INSTALL=
  57 CONFIG_UNINSTALL=
  58
  59 dnl Set up for gettext.
  60 ZW_GNU_GETTEXT_SISTER_DIR
  61
  62 localedir='${datadir}/locale'
  63 AC_SUBST(localedir)
  64
  65 if test x"$USE_NLS" = xyes; then
  66    CONFIG_ALL="$CONFIG_ALL all-po"
  67    CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
  68    CONFIG_INSTALL="$CONFIG_INSTALL install-po"
  69    CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
  70 fi
  71
  72 PACKAGE=gdb
  73 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
  74 AC_SUBST(PACKAGE)
  75
  76 # We never need to detect it in this sub-configure.
  77 # But preserve it for config.status --recheck.
  78 AC_ARG_VAR(MAKEINFO,
  79   [Parent configure detects if it is of sufficient version.])
  80 AC_ARG_VAR(MAKEINFOFLAGS,
  81   [Parameters for MAKEINFO.])
  82
  83 MAKEINFO_EXTRA_FLAGS=""
  84 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
  85   [echo '@clicksequence{a @click{} b}' >conftest.texinfo
  86   if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
  87     gdb_cv_have_makeinfo_click=yes
  88   else
  89     gdb_cv_have_makeinfo_click=no
  90   fi])
  91 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
  92   MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
  93 fi
  94 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
  95
  96 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
  97     [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
  98     [${libdir}/debug])
  99
 100 # We can't pass paths as command line arguments.
 101 # Mingw32 tries to be clever and will convert the paths for us.
 102 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
 103 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
 104 # This breaks GDB's relocatable path conversions since paths passed in
 105 # config.h would not get so translated, the path prefixes no longer match.
 106 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
 107
 108 # GDB's datadir relocation
 109
 110 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
 111     [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
 112     [${datadir}/gdb])
 113
 114 AC_ARG_WITH(relocated-sources,
 115 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
 116 [reloc_srcdir="${withval}"
 117  AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
 118               [Relocated directory for source files. ])
 119 ])
 120
 121 AC_MSG_CHECKING([for default auto-load directory])
 122 AC_ARG_WITH(auto-load-dir,
 123 AS_HELP_STRING([--with-auto-load-dir=PATH],
 124   [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
 125   [with_auto_load_dir='$debugdir:$datadir/auto-load'])
 126 escape_dir=`echo $with_auto_load_dir | sed -e 's/[[$]]datadir\>/\\\\\\\\\\\\&/g' -e 's/[[$]]debugdir\>/\\\\\\\\\\\\&/g'`
 127 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
 128               [Directories from which to load auto-loaded scripts.])
 129 AC_MSG_RESULT([$with_auto_load_dir])
 130
 131 AC_MSG_CHECKING([for default auto-load safe-path])
 132 AC_ARG_WITH(auto-load-safe-path,
 133 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
 134   [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
 135 AS_HELP_STRING([--without-auto-load-safe-path],
 136                [do not restrict auto-loaded files locations]),
 137     [if test "$with_auto_load_safe_path" = "no"; then
 138      with_auto_load_safe_path="/"
 139      fi],
 140 [with_auto_load_safe_path="$with_auto_load_dir"])
 141 escape_dir=`echo $with_auto_load_safe_path | sed -e 's/[[$]]datadir\>/\\\\\\\\\\\\&/g' -e 's/[[$]]debugdir\>/\\\\\\\\\\\\&/g'`
 142 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
 143               [Directories safe to hold auto-loaded files.])
 144 AC_MSG_RESULT([$with_auto_load_safe_path])
 145
 146 AC_CONFIG_SUBDIRS(testsuite)
 147
 148 # Check whether to support alternative target configurations
 149 AC_ARG_ENABLE(targets,
 150 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
 151 [case "${enableval}" in
 152   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
 153             ;;
 154   no)       enable_targets= ;;
 155   *)        enable_targets=$enableval ;;
 156 esac])
 157
 158 # Check whether to enable 64-bit support on 32-bit hosts
 159 AC_ARG_ENABLE(64-bit-bfd,
 160 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
 161 [case "${enableval}" in
 162   yes)  want64=true  ;;
 163   no)   want64=false ;;
 164   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
 165 esac],[want64=false])dnl
 166
 167 # Provide defaults for some variables set by the per-host and per-target
 168 # configuration.
 169 gdb_host_obs=posix-hdep.o
 170
 171 if test "${target}" = "${host}"; then
 172   gdb_native=yes
 173 else
 174   gdb_native=no
 175 fi
 176
 177 . $srcdir/configure.host
 178
 179 # Accumulate some settings from configure.tgt over all enabled targets
 180
 181 TARGET_OBS=
 182 all_targets=
 183 HAVE_NATIVE_GCORE_TARGET=
 184
 185 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 186 do
 187   if test "$targ_alias" = "all"; then
 188     all_targets=true
 189   else
 190     # Canonicalize the secondary target names.
 191     result=`$ac_config_sub $targ_alias 2>/dev/null`
 192     if test -n "$result"; then
 193         targ=$result
 194     else
 195         targ=$targ_alias
 196     fi
 197
 198     . ${srcdir}/configure.tgt
 199
 200     AS_IF([test -z "${gdb_target_obs}"],
 201       [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
 202
 203     # Target-specific object files
 204     for i in ${gdb_target_obs}; do
 205         case " $TARGET_OBS " in
 206         *" ${i} "*) ;;
 207         *)
 208           TARGET_OBS="$TARGET_OBS ${i}"
 209           ;;
 210         esac
 211     done
 212
 213     # Check whether this target needs 64-bit CORE_ADDR
 214     if test x${want64} = xfalse; then
 215       . ${srcdir}/../bfd/config.bfd
 216     fi
 217
 218     # Check whether this target is native and supports gcore.
 219     if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
 220        && $gdb_have_gcore; then
 221       HAVE_NATIVE_GCORE_TARGET=1
 222     fi
 223   fi
 224 done
 225
 226 if test x${all_targets} = xtrue; then
 227
 228   # We want all 64-bit targets if we either:
 229   #  - run on a 64-bit host  or
 230   #  - already require 64-bit support for some other target  or
 231   #  - the --enable-64-bit-bfd option was supplied
 232   # Otherwise we only support all 32-bit targets.
 233   #
 234   # NOTE: This test must be in sync with the corresponding
 235   #       tests in BFD!
 236
 237   if test x${want64} = xfalse; then
 238     AC_CHECK_SIZEOF(long)
 239     if test "x${ac_cv_sizeof_long}" = "x8"; then
 240       want64=true
 241     fi
 242   fi
 243   if test x${want64} = xtrue; then
 244     TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
 245   else
 246     TARGET_OBS='$(ALL_TARGET_OBS)'
 247   fi
 248 fi
 249
 250 AC_SUBST(TARGET_OBS)
 251 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
 252
 253 # For other settings, only the main target counts.
 254 gdb_sim=
 255 gdb_osabi=
 256 targ=$target; . ${srcdir}/configure.tgt
 257
 258 # Fetch the default architecture and default target vector from BFD.
 259 targ=$target; . $srcdir/../bfd/config.bfd
 260
 261 # We only want the first architecture, so strip off the others if
 262 # there is more than one.
 263 targ_archs=`echo $targ_archs | sed 's/ .*//'`
 264
 265 if test "x$targ_archs" != x; then
 266   AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
 267     [Define to BFD's default architecture. ])
 268 fi
 269 if test "x$targ_defvec" != x; then
 270   AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
 271     [Define to BFD's default target vector. ])
 272 fi
 273
 274 # Enable MI.
 275 AC_ARG_ENABLE(gdbmi,
 276 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
 277   [case $enableval in
 278     yes | no)
 279       ;;
 280     *)
 281       AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
 282   esac],
 283   [enable_gdbmi=yes])
 284 if test x"$enable_gdbmi" = xyes; then
 285   if test -d "$srcdir/mi"; then
 286     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
 287     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
 288     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
 289     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
 290   fi
 291 fi
 292
 293 # Enable TUI.
 294 AC_ARG_ENABLE(tui,
 295 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
 296   [case $enableval in
 297     yes | no | auto)
 298       ;;
 299     *)
 300       AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
 301   esac],enable_tui=auto)
 302
 303 # Enable gdbtk.
 304 AC_ARG_ENABLE(gdbtk,
 305 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
 306   [case $enableval in
 307     yes | no)
 308       ;;
 309     *)
 310       AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
 311   esac],
 312   [if test -d "$srcdir/gdbtk"; then
 313     enable_gdbtk=yes
 314   else
 315     enable_gdbtk=no
 316   fi])
 317 # We unconditionally disable gdbtk tests on selected platforms.
 318 case $host_os in
 319   go32* | windows*)
 320     AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
 321     enable_gdbtk=no ;;
 322 esac
 323
 324 # Handle optional debuginfod support
 325 AC_DEBUGINFOD
 326
 327 # Libunwind support for ia64.
 328 AC_ARG_WITH(libunwind-ia64,
 329 AS_HELP_STRING([--with-libunwind-ia64],
 330                [use libunwind frame unwinding for ia64 targets]),,
 331             [with_libunwind_ia64=auto])
 332
 333 # Backward compatibility option.
 334 if test "${with_libunwind+set}" = set; then
 335   if test x"$with_libunwind_ia64" != xauto; then
 336     AC_MSG_ERROR(
 337       [option --with-libunwind is deprecated, use --with-libunwind-ia64])
 338   fi
 339   AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
 340   with_libunwind_ia64="$with_libunwind"
 341 fi
 342
 343 case "$with_libunwind_ia64" in
 344   yes | no)
 345     ;;
 346   auto)
 347     AC_CHECK_HEADERS(libunwind-ia64.h)
 348     with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
 349     ;;
 350   *)
 351     AC_MSG_ERROR(
 352       [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
 353     ;;
 354 esac
 355
 356 if test x"$with_libunwind_ia64" = xyes; then
 357   AC_CHECK_HEADERS(libunwind-ia64.h)
 358   if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
 359     AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
 360   fi
 361   CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
 362   CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
 363   CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
 364 fi
 365
 366 opt_curses=no
 367 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
 368
 369 prefer_curses=no
 370 if test "$opt_curses" = "yes"; then
 371   prefer_curses=yes
 372 fi
 373
 374 # Profiling support.
 375 AC_ARG_ENABLE(profiling,
 376 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
 377   [case $enableval in
 378     yes | no)
 379       ;;
 380     *)
 381       AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
 382   esac],
 383  [enable_profiling=no])
 384
 385 AC_CHECK_FUNCS(monstartup _mcleanup)
 386 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
 387 [AC_TRY_LINK(
 388 [#include <stdlib.h>
 389 extern char _etext;
 390 ],
 391 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
 392 if test "$ac_cv_var__etext" = yes; then
 393   AC_DEFINE(HAVE__ETEXT, 1,
 394             [Define to 1 if your system has the _etext variable. ])
 395 fi
 396 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
 397 [AC_TRY_LINK(
 398 [#include <stdlib.h>
 399 extern char etext;
 400 ],
 401 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
 402 if test "$ac_cv_var_etext" = yes; then
 403   AC_DEFINE(HAVE_ETEXT, 1,
 404             [Define to 1 if your system has the etext variable. ])
 405 fi
 406 if test "$enable_profiling" = yes ; then
 407   if test "$ac_cv_func_monstartup" = no || test "$ac_cv_func__mcleanup" = no; then
 408     AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
 409   fi
 410   PROFILE_CFLAGS=-pg
 411   OLD_CFLAGS="$CFLAGS"
 412   CFLAGS="$CFLAGS $PROFILE_CFLAGS"
 413
 414   AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
 415     [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
 416      ac_cv_cc_supports_pg=no)])
 417
 418   if test "$ac_cv_cc_supports_pg" = no; then
 419     AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
 420   fi
 421
 422   CFLAGS="$OLD_CFLAGS"
 423 fi
 424
 425 CODESIGN_CERT=
 426 AC_ARG_ENABLE([codesign],
 427   AS_HELP_STRING([--enable-codesign=CERT],
 428                  [sign gdb with 'codesign -s CERT']),
 429   [CODESIGN_CERT=$enableval])
 430 AC_SUBST([CODESIGN_CERT])
 431
 432 ACX_PKGVERSION([GDB])
 433 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
 434 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
 435 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
 436
 437 # --------------------- #
 438 # Checks for programs.  #
 439 # --------------------- #
 440
 441 AC_PROG_AWK
 442 AC_PROG_INSTALL
 443 AC_PROG_LN_S
 444 AC_PROG_RANLIB
 445 AC_PROG_YACC
 446
 447 AC_CHECK_TOOL(AR, ar)
 448 AC_CHECK_TOOL(DLLTOOL, dlltool)
 449 AC_CHECK_TOOL(WINDRES, windres)
 450
 451 case $host_os in
 452   gnu*)
 453     # Needed for GNU Hurd hosts.
 454     AC_CHECK_TOOL(MIG, mig)
 455     if test x"$MIG" = x; then
 456       AC_MSG_ERROR([MIG not found but required for $host hosts])
 457     fi
 458     ;;
 459 esac
 460
 461 # ---------------------- #
 462 # Checks for libraries.  #
 463 # ---------------------- #
 464
 465 # We might need to link with -lm; most simulators need it.
 466 AC_CHECK_LIB(m, main)
 467
 468 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 469 AC_SEARCH_LIBS(gethostbyname, nsl)
 470
 471 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 472 AC_SEARCH_LIBS(socketpair, socket)
 473
 474 # Link in zlib if we can.  This allows us to read compressed debug sections.
 475 AM_ZLIB
 476
 477 # On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
 478 # On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
 479 AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
 480   [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
 481             [Define to 1 if your system has the kinfo_getvmmap function. ])])
 482
 483 AM_ICONV
 484
 485 # GDB may fork/exec the iconv program to get the list of supported character
 486 # sets.  Allow the user to specify where to find it.
 487 # There are several factors affecting the choice of option name:
 488 # - There is already --with-libiconv-prefix but we can't use it, it specifies
 489 #   the build-time location of libiconv files.
 490 # - The program we need to find is iconv, which comes with glibc.  The user
 491 #   doesn't necessarily have libiconv installed.  Therefore naming this
 492 #   --with-libiconv-foo feels wrong.
 493 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
 494 #   defined to work on directories not files (though it really doesn't know
 495 #   the difference).
 496 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
 497 #   with --with-libiconv-prefix.
 498 # Putting these together is why the option name is --with-iconv-bin.
 499
 500 AC_ARG_WITH(iconv-bin,
 501 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
 502 [iconv_bin="${withval}"
 503  AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
 504                     [Path of directory of iconv program.])
 505  GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
 506 ])
 507
 508 # For the TUI, we need enhanced curses functionality.
 509 if test x"$enable_tui" != xno; then
 510   prefer_curses=yes
 511 fi
 512
 513 curses_found=no
 514 if test x"$prefer_curses" = xyes; then
 515   # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
 516   # curses library because the latter might not provide all the
 517   # functionality we need.  However, this leads to problems on systems
 518   # where the linker searches /usr/local/lib, but the compiler doesn't
 519   # search /usr/local/include, if ncurses is installed in /usr/local.  A
 520   # default installation of ncurses on alpha*-dec-osf* will lead to such
 521   # a situation.
 522   AC_SEARCH_LIBS(waddstr, [ncursesw ncurses cursesX curses])
 523
 524   if test "$ac_cv_search_waddstr" != no; then
 525     curses_found=yes
 526   fi
 527 fi
 528
 529 # Check whether we should enable the TUI, but only do so if we really
 530 # can.
 531 if test x"$enable_tui" != xno; then
 532   if test -d "$srcdir/tui"; then
 533     if test "$curses_found" != no; then
 534       CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
 535       CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
 536       CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
 537       ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
 538     else
 539       if test x"$enable_tui" = xyes; then
 540         AC_MSG_ERROR([no enhanced curses library found; disable TUI])
 541       else
 542         AC_MSG_WARN([no enhanced curses library found; disabling TUI])
 543       fi
 544     fi
 545   fi
 546 fi
 547
 548 # Since GDB uses Readline, we need termcap functionality.  In many
 549 # cases this will be provided by the curses library, but some systems
 550 # have a separate termcap library, or no curses library at all.
 551
 552 case $host_os in
 553   cygwin*)
 554     if test -d "$srcdir/libtermcap"; then
 555       LIBS="../libtermcap/libtermcap.a $LIBS"
 556       ac_cv_search_tgetent="../libtermcap/libtermcap.a"
 557     fi ;;
 558   go32* | *djgpp*)
 559     ac_cv_search_tgetent="none required"
 560     ;;
 561 esac
 562
 563 # These are the libraries checked by Readline.
 564 AC_SEARCH_LIBS(tgetent, [termcap tinfow tinfo curses ncursesw ncurses])
 565
 566 if test "$ac_cv_search_tgetent" = no; then
 567   CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
 568 fi
 569
 570 AC_ARG_WITH([system-readline],
 571   [AS_HELP_STRING([--with-system-readline],
 572                   [use installed readline library])])
 573
 574 if test "$with_system_readline" = yes; then
 575    AC_CACHE_CHECK([whether system readline is new enough],
 576      [gdb_cv_readline_ok],
 577      [AC_TRY_COMPILE(
 578        [#include <stdio.h>
 579 #include <readline/readline.h>],
 580        [#if RL_VERSION_MAJOR < 7
 581 # error "readline version 7 required"
 582 #endif],
 583     gdb_cv_readline_ok=yes,
 584     gdb_cv_readline_ok=no)])
 585   if test "$gdb_cv_readline_ok" != yes; then
 586     AC_MSG_ERROR([system readline is not new enough])
 587   fi
 588
 589   READLINE=-lreadline
 590   READLINE_DEPS=
 591   READLINE_CFLAGS=
 592   READLINE_TEXI_INCFLAG=
 593 else
 594   READLINE='$(READLINE_DIR)/libreadline.a'
 595   READLINE_DEPS='$(READLINE)'
 596   READLINE_CFLAGS='-I$(READLINE_SRC)/..'
 597   READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
 598 fi
 599 AC_SUBST(READLINE)
 600 AC_SUBST(READLINE_DEPS)
 601 AC_SUBST(READLINE_CFLAGS)
 602 AC_SUBST(READLINE_TEXI_INCFLAG)
 603
 604 # Generate jit-reader.h
 605
 606 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
 607 TARGET_PTR=
 608
 609 AC_CHECK_SIZEOF(unsigned long long)
 610 AC_CHECK_SIZEOF(unsigned long)
 611 AC_CHECK_SIZEOF(unsigned __int128)
 612
 613 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
 614   TARGET_PTR="unsigned long"
 615 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
 616   TARGET_PTR="unsigned long long"
 617 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
 618   TARGET_PTR="unsigned __int128"
 619 else
 620   TARGET_PTR="unsigned long"
 621 fi
 622
 623 AC_SUBST(TARGET_PTR)
 624 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
 625
 626 AC_SEARCH_LIBS(dlopen, dl)
 627
 628 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
 629                 [directory to load the JIT readers from],
 630                 [${libdir}/gdb])
 631
 632 AC_ARG_WITH(expat,
 633   AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
 634   [], [with_expat=auto])
 635 AC_MSG_CHECKING([whether to use expat])
 636 AC_MSG_RESULT([$with_expat])
 637
 638 if test "${with_expat}" = no; then
 639   AC_MSG_WARN([expat support disabled; some features may be unavailable.])
 640   HAVE_LIBEXPAT=no
 641 else
 642   AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
 643                         [XML_Parser p = XML_ParserCreate (0);])
 644   if test "$HAVE_LIBEXPAT" != yes; then
 645     if test "$with_expat" = yes; then
 646       AC_MSG_ERROR([expat is missing or unusable])
 647     else
 648       AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
 649     fi
 650   else
 651     save_LIBS=$LIBS
 652     LIBS="$LIBS $LIBEXPAT"
 653     AC_CHECK_FUNCS(XML_StopParser)
 654     LIBS=$save_LIBS
 655   fi
 656 fi
 657
 658 AC_ARG_WITH(mpfr,
 659   AS_HELP_STRING([--with-mpfr], [include MPFR support (auto/yes/no)]),
 660   [], [with_mpfr=auto])
 661 AC_MSG_CHECKING([whether to use MPFR])
 662 AC_MSG_RESULT([$with_mpfr])
 663
 664 if test "${with_mpfr}" = no; then
 665   AC_MSG_WARN([MPFR support disabled; some features may be unavailable.])
 666   HAVE_LIBMPFR=no
 667 else
 668   AC_LIB_HAVE_LINKFLAGS([mpfr], [gmp], [#include <mpfr.h>],
 669                         [mpfr_exp_t exp; mpfr_t x;
 670                          mpfr_frexp (&exp, x, x, MPFR_RNDN);])
 671   if test "$HAVE_LIBMPFR" != yes; then
 672     if test "$with_mpfr" = yes; then
 673       AC_MSG_ERROR([MPFR is missing or unusable])
 674     else
 675       AC_MSG_WARN([MPFR is missing or unusable; some features may be unavailable.])
 676     fi
 677   fi
 678 fi
 679
 680 # --------------------- #
 681 # Check for libpython.  #
 682 # --------------------- #
 683
 684 dnl Utility to simplify finding libpython.
 685 dnl $1 = the shell variable to assign the result to
 686 dnl      If libpython is found we store $version here.
 687 dnl $2 = additional flags to add to CPPFLAGS
 688 dnl $3 = additional flags to add to LIBS
 689
 690 AC_DEFUN([AC_TRY_LIBPYTHON],
 691 [
 692   define([have_libpython_var],$1)
 693   new_CPPFLAGS=$2
 694   new_LIBS=$3
 695   AC_MSG_CHECKING([for python])
 696   save_CPPFLAGS=$CPPFLAGS
 697   save_LIBS=$LIBS
 698   CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
 699   LIBS="$new_LIBS $LIBS"
 700   found_usable_python=no
 701   AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "Python.h"]],
 702                                  [[Py_Initialize ();]])],
 703                  [have_libpython_var=yes
 704                   found_usable_python=yes
 705                   PYTHON_CPPFLAGS=$new_CPPFLAGS
 706                   PYTHON_LIBS=$new_LIBS])
 707   CPPFLAGS=$save_CPPFLAGS
 708   LIBS=$save_LIBS
 709   AC_MSG_RESULT([${found_usable_python}])
 710 ])
 711
 712 dnl There are several different values for --with-python:
 713 dnl
 714 dnl no -   Don't include python support.
 715 dnl yes -  Include python support, error if it's missing.
 716 dnl        If we find python in $PATH, use it to fetch configure options,
 717 dnl        otherwise assume the compiler can find it with no help from us.
 718 dnl        Python 2.7 and 2.6 are tried in turn.
 719 dnl auto - Same as "yes", but if python is missing from the system,
 720 dnl        fall back to "no".
 721 dnl /path/to/python/exec-prefix -
 722 dnl        Use the python located in this directory.
 723 dnl        If /path/to/python/exec-prefix/bin/python exists, use it to find
 724 dnl        the compilation parameters.  Otherwise use
 725 dnl        -I/path/to/python/exec-prefix/include,
 726 dnl        -L/path/to/python/exec-prefix/lib.
 727 dnl        Python 2.7 and 2.6 are tried in turn.
 728 dnl        NOTE: This case is historical.  It is what was done for 7.0/7.1
 729 dnl        but is deprecated.
 730 dnl /path/to/python/executable -
 731 dnl        Run python-config.py with this version of python to fetch the
 732 dnl        compilation parameters.
 733 dnl        NOTE: This needn't be the real python executable.
 734 dnl        In a cross-compilation scenario (build != host), this could be
 735 dnl        a shell script that provides what python-config.py provides for
 736 dnl        --ldflags, --includes, --exec-prefix.
 737 dnl python-executable -
 738 dnl        Find python-executable in $PATH, and then handle the same as
 739 dnl        /path/to/python/executable.
 740 dnl
 741 dnl If a python program is specified, it is used to run python-config.py and
 742 dnl is passed --ldflags, --includes, --exec-prefix.
 743
 744 AC_ARG_WITH(python,
 745   AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
 746   [], [with_python=auto])
 747 AC_MSG_CHECKING([whether to use python])
 748 AC_MSG_RESULT([$with_python])
 749
 750 if test "${with_python}" = no; then
 751   AC_MSG_WARN([python support disabled; some features may be unavailable.])
 752   have_libpython=no
 753 else
 754   case "${with_python}" in
 755   [[\\/]]* | ?:[[\\/]]*)
 756     if test -d "${with_python}"; then
 757       # Assume the python binary is ${with_python}/bin/python.
 758       python_prog="${with_python}/bin/python"
 759       python_prefix=
 760       # If python does not exit ${with_python}/bin, then try in
 761       # ${with_python}.  On Windows/MinGW, this is where the Python
 762       # executable is.
 763       if test ! -x "${python_prog}"; then
 764         python_prog="${with_python}/python"
 765         python_prefix=
 766       fi
 767       if test ! -x "${python_prog}"; then
 768         # Fall back to gdb 7.0/7.1 behaviour.
 769         python_prog=missing
 770         python_prefix=${with_python}
 771       fi
 772     elif test -x "${with_python}"; then
 773       # While we can't run python compiled for $host (unless host == build),
 774       # the user could write a script that provides the needed information,
 775       # so we support that.
 776       python_prog=${with_python}
 777       python_prefix=
 778     else
 779       AC_ERROR(invalid value for --with-python)
 780     fi
 781     ;;
 782   */*)
 783     # Disallow --with-python=foo/bar.
 784     AC_ERROR(invalid value for --with-python)
 785     ;;
 786   *)
 787     # The user has either specified auto, yes, or the name of the python
 788     # program assumed to be in $PATH.
 789     python_prefix=
 790     case "${with_python}" in
 791     yes | auto)
 792       if test "${build}" = "${host}"; then
 793         AC_PATH_PROG(python_prog_path, python, missing)
 794         if test "${python_prog_path}" = missing; then
 795           python_prog=missing
 796         else
 797           python_prog=${python_prog_path}
 798         fi
 799       else
 800         # Not much we can do except assume the cross-compiler will find the
 801         # right files.
 802         python_prog=missing
 803       fi
 804       ;;
 805     *)
 806       # While we can't run python compiled for $host (unless host == build),
 807       # the user could write a script that provides the needed information,
 808       # so we support that.
 809       python_prog="${with_python}"
 810       AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
 811       if test "${python_prog_path}" = missing; then
 812         AC_ERROR(unable to find python program ${python_prog})
 813       fi
 814       ;;
 815     esac
 816   esac
 817
 818   if test "${python_prog}" != missing; then
 819     # We have a python program to use, but it may be too old.
 820     # Don't flag an error for --with-python=auto (the default).
 821     have_python_config=yes
 822     python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
 823     if test $? != 0; then
 824       have_python_config=failed
 825       if test "${with_python}" != auto; then
 826         AC_ERROR(failure running python-config --includes)
 827       fi
 828     fi
 829     python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
 830     if test $? != 0; then
 831       have_python_config=failed
 832       if test "${with_python}" != auto; then
 833         AC_ERROR(failure running python-config --ldflags)
 834       fi
 835     fi
 836     python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
 837     if test $? != 0; then
 838       have_python_config=failed
 839       if test "${with_python}" != auto; then
 840         AC_ERROR(failure running python-config --exec-prefix)
 841       fi
 842     fi
 843   else
 844     # We do not have a python executable we can use to determine where
 845     # to find the Python headers and libs.  We cannot guess the include
 846     # path from the python_prefix either, because that include path
 847     # depends on the Python version.  So, there is nothing much we can
 848     # do except assume that the compiler will be able to find those files.
 849     python_includes=
 850     python_libs=
 851     have_python_config=no
 852   fi
 853
 854   # If we have python-config, only try the configuration it provides.
 855   # Otherwise fallback on the old way of trying different versions of
 856   # python in turn.
 857
 858   have_libpython=no
 859   if test "${have_python_config}" = yes; then
 860     AC_TRY_LIBPYTHON(have_libpython,
 861                      ${python_includes}, ${python_libs})
 862   elif test "${have_python_config}" != failed; then
 863     if test "${have_libpython}" = no; then
 864       AC_TRY_LIBPYTHON(have_libpython,
 865                        ${python_includes}, "-lpython2.7 ${python_libs}")
 866     fi
 867     if test "${have_libpython}" = no; then
 868       AC_TRY_LIBPYTHON(have_libpython,
 869                        ${python_includes}, "-lpython2.6 ${python_libs}")
 870     fi
 871   fi
 872
 873   if test "${have_libpython}" = no; then
 874     case "${with_python}" in
 875     yes)
 876       AC_MSG_ERROR([python is missing or unusable])
 877       ;;
 878     auto)
 879       AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
 880       ;;
 881     *)
 882       AC_MSG_ERROR([no usable python found at ${with_python}])
 883       ;;
 884     esac
 885   else
 886     if test -n "${python_prefix}"; then
 887       AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
 888                          [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
 889       GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
 890     fi
 891   fi
 892 fi
 893
 894 dnl Use --with-python-libdir to control where GDB looks for the Python
 895 dnl libraries.
 896 dnl
 897 dnl If this is not given then the default will be based on the value
 898 dnl passed to --with-python, which is in the python_prefix variable.
 899 dnl If the --with-python option wasn't given then the default value in
 900 dnl python_prefix is based on running the 'gdb/python/python-config
 901 dnl --exec-prefix' script.
 902 AC_ARG_WITH(python-libdir,
 903   AS_HELP_STRING([--with-python-libdir@<:@=DIR@:>@], [search for python's libraries in DIR]),
 904   [],[
 905     # If no python libdir is specified then select one based on
 906     # python's prefix path.
 907     if test -n "${python_prefix}"; then
 908       with_python_libdir=${python_prefix}/lib
 909     fi
 910   ])
 911
 912 if test "${have_libpython}" != no; then
 913   AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
 914   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
 915   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
 916   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
 917   CONFIG_INSTALL="$CONFIG_INSTALL install-python"
 918   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
 919
 920   if test -n "${with_python_libdir}"; then
 921     AC_DEFINE_UNQUOTED(WITH_PYTHON_LIBDIR, "${with_python_libdir}",
 922                        [Directory containing Python's standard libraries from --with-python-libdir.])
 923     GDB_AC_DEFINE_RELOCATABLE(PYTHON_LIBDIR, [python lib], ${with_python_libdir})
 924   fi
 925
 926   # Flags needed to compile Python code (taken from python-config --cflags).
 927   # We cannot call python-config directly because it will output whatever was
 928   # used when compiling the Python interpreter itself, including flags which
 929   # would make the python-related objects be compiled differently from the
 930   # rest of GDB (e.g., -O2 and -fPIC).
 931   if test "${GCC}" = yes; then
 932     tentative_python_cflags="-fno-strict-aliasing -fwrapv"
 933     # Python headers recommend -DNDEBUG, but it's unclear if that just
 934     # refers to building Python itself.  In release mode, though, it
 935     # doesn't hurt for the Python code in gdb to follow.
 936     $development || tentative_python_cflags="$tentative_python_cflags -DNDEBUG"
 937   fi
 938
 939   if test "x${tentative_python_cflags}" != x; then
 940     AC_MSG_CHECKING(compiler flags for python code)
 941     for flag in ${tentative_python_cflags}; do
 942       # Check that the compiler accepts it
 943       saved_CFLAGS="$CFLAGS"
 944       CFLAGS="$CFLAGS $flag"
 945       AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
 946       CFLAGS="$saved_CFLAGS"
 947     done
 948     AC_MSG_RESULT(${PYTHON_CFLAGS})
 949   fi
 950
 951   # On x64 Windows, Python's include headers, and pyconfig.h in
 952   # particular, rely on MS_WIN64 macro to detect that it's a 64bit
 953   # version of Windows.  Unfortunately, MS_WIN64 is only defined if
 954   # _MSC_VER, a Microsoft-specific macro, is defined.  So, when
 955   # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
 956   # The issue was reported to the Python community, but still isn't
 957   # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
 958
 959   case "$gdb_host" in
 960     mingw64)
 961            if test "${GCC}" = yes; then
 962              CPPFLAGS="$CPPFLAGS -DMS_WIN64"
 963            fi
 964            ;;
 965   esac
 966 else
 967   # Even if Python support is not compiled in, we need to have this file
 968   # included so that the "python" command, et.al., still exists.
 969   CONFIG_OBS="$CONFIG_OBS python/python.o"
 970   CONFIG_SRCS="$CONFIG_SRCS python/python.c"
 971 fi
 972
 973 # Work around Python http://bugs.python.org/issue10112.  See also
 974 # http://bugs.python.org/issue11410, otherwise -Wl,--dynamic-list has
 975 # no effect.  Note that the only test after this that uses Python is
 976 # the -rdynamic/-Wl,--dynamic-list test, and we do want that one to be
 977 # run without -export-dynamic too.
 978 PYTHON_LIBS=`echo $PYTHON_LIBS | sed -e 's/-Xlinker -export-dynamic//'`
 979
 980 AC_SUBST(PYTHON_CFLAGS)
 981 AC_SUBST(PYTHON_CPPFLAGS)
 982 AC_SUBST(PYTHON_LIBS)
 983 AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
 984
 985 # -------------------- #
 986 # Check for libguile.  #
 987 # -------------------- #
 988
 989 dnl Utility to simplify finding libguile.
 990 dnl $1 = pkg-config-program
 991 dnl $2 = space-separate list of guile versions to try
 992 dnl $3 = yes|no, indicating whether to flag errors or ignore them
 993 dnl $4 = the shell variable to assign the result to
 994 dnl      If libguile is found we store "yes" here.
 995
 996 AC_DEFUN([AC_TRY_LIBGUILE],
 997 [
 998   pkg_config=$1
 999   guile_version_list=$2
1000   flag_errors=$3
1001   define([have_libguile_var],$4)
1002   found_usable_guile=checking
1003   AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1004   for guile_version in ${guile_version_list}; do
1005     ${pkg_config} --exists ${guile_version} 2>/dev/null
1006     if test $? != 0; then
1007       continue
1008     fi
1009     dnl pkg-config says the package exists, so if we get an error now,
1010     dnl that's bad.
1011     new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1012     if test $? != 0; then
1013       AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1014     fi
1015     new_LIBS=`${pkg_config} --libs ${guile_version}`
1016     if test $? != 0; then
1017       AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1018     fi
1019     dnl If we get this far, great.
1020     found_usable_guile=${guile_version}
1021     break
1022   done
1023   if test "${found_usable_guile}" = "checking"; then
1024     if test "${flag_errors}" = "yes"; then
1025       AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1026     else
1027       found_usable_guile=no
1028     fi
1029   fi
1030   dnl One final sanity check.
1031   dnl The user could have said --with-guile=python-2.7.
1032   if test "${found_usable_guile}" != no; then
1033     save_CPPFLAGS=$CPPFLAGS
1034     save_LIBS=$LIBS
1035     CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1036     LIBS="$LIBS $new_LIBS"
1037     AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "libguile.h"]],
1038                                    [[scm_init_guile ();]])],
1039                    [have_libguile_var=yes
1040                     GUILE_CPPFLAGS=$new_CPPFLAGS
1041                     GUILE_LIBS=$new_LIBS],
1042                    [found_usable_guile=no])
1043     dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
1044     AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
1045       AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
1046                 [Define if Guile supports manual finalization.])
1047     )
1048     CPPFLAGS=$save_CPPFLAGS
1049     LIBS=$save_LIBS
1050     if test "${found_usable_guile}" = no; then
1051       if test "${flag_errors}" = yes; then
1052         AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1053       fi
1054     fi
1055   fi
1056   AC_MSG_RESULT([${found_usable_guile}])
1057 ])
1058
1059 dnl There are several different values for --with-guile:
1060 dnl
1061 dnl no -   Don't include guile support.
1062 dnl yes -  Include guile support, error if it's missing.
1063 dnl        The pkg-config program must be in $PATH.
1064 dnl auto - Same as "yes", but if guile is missing from the system,
1065 dnl        fall back to "no".
1066 dnl guile-version [guile-version-choice-2 ...] -
1067 dnl        A space-separated list of guile package versions to try.
1068 dnl        These are passed to pkg-config as-is.
1069 dnl        E.g., guile-2.0 or guile-2.2-uninstalled
1070 dnl        This requires making sure PKG_CONFIG_PATH is set appropriately.
1071 dnl /path/to/pkg-config -
1072 dnl        Use this pkg-config program.
1073 dnl        NOTE: This needn't be the "real" pkg-config program.
1074 dnl        It could be a shell script.  It is invoked as:
1075 dnl        pkg-config --exists $version
1076 dnl        pkg-config --cflags $version
1077 dnl        pkg-config --libs $version
1078 dnl        pkg-config --variable guild $version
1079 dnl        The script will be called with $version having each value in
1080 dnl        $try_guile_versions until --exists indicates success.
1081
1082 AC_ARG_WITH(guile,
1083   AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1084   [], [with_guile=auto])
1085 AC_MSG_CHECKING([whether to use guile])
1086 AC_MSG_RESULT([$with_guile])
1087
1088 dnl We check guile with pkg-config.
1089 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1090
1091 try_guile_versions="guile-2.0"
1092 have_libguile=no
1093 case "${with_guile}" in
1094 no)
1095   AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1096   ;;
1097 auto)
1098   if test "${pkg_config_prog_path}" = "missing"; then
1099     AC_MSG_WARN([pkg-config not found, guile support disabled])
1100   else
1101     AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1102   fi
1103   ;;
1104 yes)
1105   if test "${pkg_config_prog_path}" = "missing"; then
1106     AC_MSG_ERROR([pkg-config not found])
1107   fi
1108   AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1109   ;;
1110 [[\\/]]* | ?:[[\\/]]*)
1111   if test -x "${with_guile}"; then
1112     AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1113   else
1114     AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1115   fi
1116   ;;
1117 "" | */*)
1118   # Disallow --with=guile="" and --with-guile=foo/bar.
1119   AC_MSG_ERROR([invalid value for --with-guile])
1120   ;;
1121 *)
1122   # A space separate list of guile versions to try, in order.
1123   if test "${pkg_config_prog_path}" = "missing"; then
1124     AC_MSG_ERROR([pkg-config not found])
1125   fi
1126   AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1127   ;;
1128 esac
1129
1130 if test "${have_libguile}" != no; then
1131   dnl Get the name of the 'guild' program.
1132   case "${with_guile}" in
1133   [[\\/]]* | ?:[[\\/]]*)
1134     GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1135     ;;
1136   *)
1137     GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1138     ;;
1139   esac
1140
1141   dnl Make sure guild can handle this host.
1142   GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1143   dnl If not, disable guile support.
1144   if test "$ac_cv_guild_ok" = no; then
1145     have_libguile=no
1146     AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1147   fi
1148 fi
1149
1150 if test "${have_libguile}" != no; then
1151   AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1152   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1153   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1154   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1155   CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1156   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1157
1158   dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1159   save_LIBS="$LIBS"
1160   save_CPPFLAGS="$CPPFLAGS"
1161   LIBS="$GUILE_LIBS"
1162   CPPFLAGS="$GUILE_CPPFLAGS"
1163   AC_CHECK_FUNCS([scm_new_smob])
1164   LIBS="$save_LIBS"
1165   CPPFLAGS="$save_CPPFLAGS"
1166 else
1167   # Even if Guile support is not compiled in, we need to have these files
1168   # included.
1169   CONFIG_OBS="$CONFIG_OBS guile/guile.o"
1170   CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1171 fi
1172 AC_SUBST(GUILE_CPPFLAGS)
1173 AC_SUBST(GUILE_LIBS)
1174 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1175
1176 # ---------------------------- #
1177 # Check for source highlight.  #
1178 # ---------------------------- #
1179
1180 SRCHIGH_LIBS=
1181 SRCHIGH_CFLAGS=
1182
1183 AC_ARG_ENABLE(source-highlight,
1184   AS_HELP_STRING([--enable-source-highlight],
1185     [enable source-highlight for source listings]),
1186   [case "${enableval}" in
1187   yes)  enable_source_highlight=yes ;;
1188   no)   enable_source_highlight=no  ;;
1189   *)    AC_MSG_ERROR(bad value ${enableval} for source-highlight option) ;;
1190 esac],
1191 [enable_source_highlight=auto])
1192
1193 if test "${enable_source_highlight}" != "no"; then
1194   AC_MSG_CHECKING([for the source-highlight library])
1195   if test "${pkg_config_prog_path}" = "missing"; then
1196     AC_MSG_RESULT([no - pkg-config not found])
1197     if test "${enable_source_highlight}" = "yes"; then
1198       AC_MSG_ERROR([pkg-config was not found in your system])
1199     fi
1200   else
1201     case "$LDFLAGS" in
1202       *static-libstdc*)
1203         AC_MSG_ERROR([source highlight is incompatible with -static-libstdc++; dnl
1204 either use --disable-source-highlight or dnl
1205 --without-static-standard-libraries])
1206         ;;
1207     esac
1208
1209     if ${pkg_config_prog_path} --exists source-highlight; then
1210       SRCHIGH_CFLAGS=`${pkg_config_prog_path} --cflags source-highlight`
1211       SRCHIGH_LIBS=`${pkg_config_prog_path} --libs source-highlight`
1212       AC_DEFINE([HAVE_SOURCE_HIGHLIGHT], 1,
1213                 [Define to 1 if the source-highlight library is available])
1214       AC_MSG_RESULT([yes])
1215     else
1216       AC_MSG_RESULT([no])
1217       if test "${enable_source_highlight}" = "yes"; then
1218         AC_MSG_ERROR([source-highlight was not found in your system])
1219       fi
1220     fi
1221   fi
1222 fi
1223 AC_SUBST(SRCHIGH_LIBS)
1224 AC_SUBST(SRCHIGH_CFLAGS)
1225
1226 # ------------------------- #
1227 # Checks for header files.  #
1228 # ------------------------- #
1229
1230 AC_HEADER_STDC
1231 # elf_hp.h is for HP/UX 64-bit shared library support.
1232 AC_CHECK_HEADERS([nlist.h machine/reg.h \
1233                   thread_db.h \
1234                   sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1235                   sys/resource.h sys/ptrace.h ptrace.h \
1236                   sys/reg.h sys/debugreg.h \
1237                   termios.h elf_hp.h])
1238 AC_CHECK_HEADERS(sys/user.h, [], [],
1239 [#if HAVE_SYS_PARAM_H
1240 # include <sys/param.h>
1241 #endif
1242 ])
1243
1244 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncursesw/ncurses.h ncurses/ncurses.h ncurses/term.h)
1245 AC_CHECK_HEADERS(term.h, [], [],
1246 [#if HAVE_CURSES_H
1247 # include <curses.h>
1248 #endif
1249 ])
1250
1251 # ------------------------- #
1252 # Checks for declarations.  #
1253 # ------------------------- #
1254
1255 libiberty_INIT
1256
1257 AC_CHECK_DECLS([snprintf])
1258 AM_LC_MESSAGES
1259
1260 # ------------------ #
1261 # Checks for types.  #
1262 # ------------------ #
1263
1264 AC_CHECK_TYPES(socklen_t, [], [],
1265 [#include <sys/types.h>
1266 #include <sys/socket.h>
1267 ])
1268
1269 # ------------------------------------- #
1270 # Checks for compiler characteristics.  #
1271 # ------------------------------------- #
1272
1273 AC_C_CONST
1274 AC_C_INLINE
1275 AC_C_BIGENDIAN
1276
1277 # ------------------------------ #
1278 # Checks for library functions.  #
1279 # ------------------------------ #
1280
1281 AC_CHECK_FUNCS([getuid getgid \
1282                 pipe pread pread64 pwrite resize_term \
1283                 getpgid setsid \
1284                 sigaction sigsetmask socketpair \
1285                 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1286                 setrlimit getrlimit posix_madvise waitpid \
1287                 use_default_colors])
1288 AM_LANGINFO_CODESET
1289 GDB_AC_COMMON
1290
1291 # Check the return and argument types of ptrace.
1292 GDB_AC_PTRACE
1293
1294 dnl AC_FUNC_SETPGRP does not work when cross compiling
1295 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1296 if test "$cross_compiling" = no; then
1297   AC_FUNC_SETPGRP
1298 else
1299   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1300     [AC_TRY_COMPILE([
1301 #include <unistd.h>
1302 ], [
1303   if (setpgrp(1,1) == -1)
1304     exit (0);
1305   else
1306     exit (1);
1307 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1308 if test "$ac_cv_func_setpgrp_void" = yes; then
1309   AC_DEFINE(SETPGRP_VOID, 1)
1310 fi
1311 fi
1312
1313 # Assume we'll default to using the included libiberty regex.
1314 gdb_use_included_regex=yes
1315
1316 # However, if the system regex is GNU regex, then default to *not*
1317 # using the included regex.
1318 AC_CACHE_CHECK(
1319   [for GNU regex],
1320   [gdb_cv_have_gnu_regex],
1321   [AC_TRY_COMPILE(
1322     [#include <gnu-versions.h>],
1323     [#define REGEX_INTERFACE_VERSION 1
1324 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1325 # error "Version mismatch"
1326 #endif],
1327     gdb_cv_have_gnu_regex=yes,
1328     gdb_cv_have_gnu_regex=no)])
1329 if test "$gdb_cv_have_gnu_regex" = yes; then
1330   gdb_use_included_regex=no
1331 fi
1332
1333 AC_ARG_WITH(included-regex,
1334   AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1335   gdb_with_regex=$withval,
1336   gdb_with_regex=$gdb_use_included_regex)
1337 if test "$gdb_with_regex" = yes; then
1338   AC_DEFINE(USE_INCLUDED_REGEX, 1,
1339     [Define to 1 if the regex included in libiberty should be used.])
1340 fi
1341
1342 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1343 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1344 [#include <sys/param.h>
1345 #include <sys/proc.h>
1346 ])
1347
1348 # See if <sys/lwp.h> defines `struct lwp`.
1349 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1350 [AC_TRY_COMPILE([#include <sys/param.h>
1351 #define _KMEMUSER
1352 #include <sys/lwp.h>], [struct lwp l;],
1353 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1354 if test "$gdb_cv_struct_lwp" = yes; then
1355   AC_DEFINE(HAVE_STRUCT_LWP, 1,
1356             [Define to 1 if your system has struct lwp.])
1357 fi
1358
1359 # See if <machine/reg.h> degines `struct reg'.
1360 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1361 [AC_TRY_COMPILE([#include <sys/types.h>
1362 #include <machine/reg.h>], [struct reg r;],
1363 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1364 if test "$gdb_cv_struct_reg" = yes; then
1365   AC_DEFINE(HAVE_STRUCT_REG, 1,
1366             [Define to 1 if your system has struct reg in <machine/reg.h>.])
1367 fi
1368
1369 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1370 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1371 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1372                  [#include <sys/types.h>
1373 #include <machine/reg.h>])
1374
1375 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1376 # Older amd64 Linux's don't have the fs_base and gs_base members of
1377 # `struct user_regs_struct'.
1378 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1379      [], [], [#include <sys/types.h>
1380 #include <sys/user.h>])
1381
1382 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1383 AC_MSG_CHECKING(for PTRACE_GETREGS)
1384 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1385 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1386                 [PTRACE_GETREGS;],
1387                 [gdb_cv_have_ptrace_getregs=yes],
1388                 [gdb_cv_have_ptrace_getregs=no])])
1389 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1390 if test "$gdb_cv_have_ptrace_getregs" = yes; then
1391   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1392   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1393 fi
1394
1395 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1396 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1397 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1398 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1399                 [PTRACE_GETFPXREGS;],
1400                 [gdb_cv_have_ptrace_getfpxregs=yes],
1401                 [gdb_cv_have_ptrace_getfpxregs=no])])
1402 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1403 if test "$gdb_cv_have_ptrace_getfpxregs" = yes; then
1404   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1405   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1406 fi
1407
1408 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1409 AC_MSG_CHECKING(for PT_GETDBREGS)
1410 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1411 [AC_TRY_COMPILE([#include <sys/types.h>
1412 #include <sys/ptrace.h>],
1413                 [PT_GETDBREGS;],
1414                 [gdb_cv_have_pt_getdbregs=yes],
1415                 [gdb_cv_have_pt_getdbregs=no])])
1416 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1417 if test "$gdb_cv_have_pt_getdbregs" = yes; then
1418   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1419   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1420 fi
1421
1422 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1423 AC_MSG_CHECKING(for PT_GETXMMREGS)
1424 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1425 [AC_TRY_COMPILE([#include <sys/types.h>
1426 #include <sys/ptrace.h>],
1427                 [PT_GETXMMREGS;],
1428                 [gdb_cv_have_pt_getxmmregs=yes],
1429                 [gdb_cv_have_pt_getxmmregs=no])])
1430 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1431 if test "$gdb_cv_have_pt_getxmmregs" = yes; then
1432   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1433   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1434 fi
1435
1436 # See if <sys/ptrace.h> supports LWP names on FreeBSD
1437 # Older FreeBSD versions don't have the pl_tdname member of
1438 # `struct ptrace_lwpinfo'.
1439 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
1440                  [#include <sys/ptrace.h>])
1441
1442 # See if <sys/ptrace.h> supports syscall fields on FreeBSD.  The
1443 # pl_syscall_code member of `struct ptrace_lwpinfo' was added in
1444 # FreeBSD 10.3.
1445 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_syscall_code], [], [],
1446                  [#include <sys/ptrace.h>])
1447
1448 # Check if the compiler supports the `long long' type.
1449
1450 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1451                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1452 [[extern long long foo;]],
1453 [[switch (foo & 2) { case 0: return 1; }]])],
1454                                   gdb_cv_c_long_long=yes,
1455                                   gdb_cv_c_long_long=no)])
1456 if test "$gdb_cv_c_long_long" != yes; then
1457   # libdecnumber requires long long.
1458   AC_MSG_ERROR([Compiler must support long long for GDB.])
1459 fi
1460
1461 # Check if the compiler and runtime support printing long longs.
1462
1463 AC_CACHE_CHECK([for long long support in printf],
1464                gdb_cv_printf_has_long_long,
1465                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1466 [[char buf[32];
1467   long long l = 0;
1468   l = (l << 16) + 0x0123;
1469   l = (l << 16) + 0x4567;
1470   l = (l << 16) + 0x89ab;
1471   l = (l << 16) + 0xcdef;
1472   sprintf (buf, "0x%016llx", l);
1473   return (strcmp ("0x0123456789abcdef", buf));]])],
1474                               gdb_cv_printf_has_long_long=yes,
1475                               gdb_cv_printf_has_long_long=no,
1476                               gdb_cv_printf_has_long_long=no)])
1477 if test "$gdb_cv_printf_has_long_long" = yes; then
1478   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1479             [Define to 1 if the "%ll" format works to print long longs.])
1480 fi
1481
1482 # Check if the compiler and runtime support printing decfloats.
1483
1484 AC_CACHE_CHECK([for decfloat support in printf],
1485                gdb_cv_printf_has_decfloat,
1486                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1487 [[char buf[64];
1488   _Decimal32 d32 = 1.2345df;
1489   _Decimal64 d64 = 1.2345dd;
1490   _Decimal128 d128 = 1.2345dl;
1491   sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1492   return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1493                               gdb_cv_printf_has_decfloat=yes,
1494                               gdb_cv_printf_has_decfloat=no,
1495                               gdb_cv_printf_has_decfloat=no)])
1496 if test "$gdb_cv_printf_has_decfloat" = yes; then
1497   AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1498             [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1499 fi
1500
1501 # Check if the compiler supports the `long double' type.  We can't use
1502 # AC_C_LONG_DOUBLE because that one does additional checks on the
1503 # constants defined in <float.h> that fail on some systems,
1504 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1505
1506 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1507                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1508                                   gdb_cv_c_long_double=yes,
1509                                   gdb_cv_c_long_double=no)])
1510 if test "$gdb_cv_c_long_double" = yes; then
1511   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1512            [Define to 1 if the compiler supports long double.])
1513 fi
1514
1515 # Check if the compiler and runtime support printing long doubles.
1516
1517 AC_CACHE_CHECK([for long double support in printf],
1518                gdb_cv_printf_has_long_double,
1519                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1520 [[char buf[16];
1521   long double f = 3.141592653;
1522   sprintf (buf, "%Lg", f);
1523   return (strncmp ("3.14159", buf, 7));]])],
1524                               gdb_cv_printf_has_long_double=yes,
1525                               gdb_cv_printf_has_long_double=no,
1526                               gdb_cv_printf_has_long_double=no)])
1527 if test "$gdb_cv_printf_has_long_double" = yes; then
1528   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1529             [Define to 1 if the "%Lg" format works to print long doubles.])
1530 fi
1531
1532 # Check if the compiler and runtime support scanning long doubles.
1533
1534 AC_CACHE_CHECK([for long double support in scanf],
1535                gdb_cv_scanf_has_long_double,
1536                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1537 [[#include <stdio.h>]],
1538 [[char *buf = "3.141592653";
1539   long double f = 0;
1540   sscanf (buf, "%Lg", &f);
1541   return !(f > 3.14159 && f < 3.14160);]])],
1542                               gdb_cv_scanf_has_long_double=yes,
1543                               gdb_cv_scanf_has_long_double=no,
1544                               gdb_cv_scanf_has_long_double=no)])
1545 if test "$gdb_cv_scanf_has_long_double" = yes; then
1546   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1547             [Define to 1 if the "%Lg" format works to scan long doubles.])
1548 fi
1549
1550 case ${host_os} in
1551 aix*)
1552   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1553     SAVE_LDFLAGS=$LDFLAGS
1554
1555     case $GCC in
1556     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1557     *) gdb_cv_bigtoc=-bbigtoc ;;
1558     esac
1559
1560     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1561     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1562     LDFLAGS="${SAVE_LDFLAGS}"
1563   ])
1564   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1565   ;;
1566 esac
1567
1568 AC_MSG_CHECKING(for the dynamic export flag)
1569 dynamic_list=false
1570 if test "${gdb_native}" = yes; then
1571    # The dynamically loaded libthread_db needs access to symbols in the gdb
1572    # executable.  Older GNU ld supports --export-dynamic but --dynamic-list
1573    # may not be supported there.
1574    old_LDFLAGS="$LDFLAGS"
1575    # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1576    RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1577    LDFLAGS="$LDFLAGS $RDYNAMIC"
1578    if test "${have_libpython}" = no; then
1579      AC_TRY_LINK([], [], [dynamic_list=true])
1580    else
1581      # Workaround http://bugs.python.org/issue4434 where static
1582      # libpythonX.Y.a would get its symbols required for
1583      # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1584      # Problem does not happen for the recommended libpythonX.Y.so linkage.
1585
1586      # Note the workaround for Python
1587      # http://bugs.python.org/issue10112 earlier has removed
1588      # -export-dynamic from PYTHON_LIBS.  That's exactly what we want
1589      # here too, as otherwise it'd make this -Wl,--dynamic-list test
1590      # always pass.
1591      old_CFLAGS="$CFLAGS"
1592      CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1593      old_LIBS="$LIBS"
1594      LIBS="$LIBS $PYTHON_LIBS"
1595      old_CPPFLAGS="$CPPFLAGS"
1596      CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
1597      AC_RUN_IFELSE(
1598        [AC_LANG_PROGRAM(
1599          [#include "Python.h"],
1600          [int err;
1601           Py_Initialize ();
1602           err = PyRun_SimpleString ("import itertools\n");
1603           Py_Finalize ();
1604           return err == 0 ? 0 : 1;])],
1605        [dynamic_list=true], [], [true])
1606      LIBS="$old_LIBS"
1607      CFLAGS="$old_CFLAGS"
1608      CPPFLAGS="$old_CPPFLAGS"
1609    fi
1610    LDFLAGS="$old_LDFLAGS"
1611 fi
1612 if $dynamic_list; then
1613   found="-Wl,--dynamic-list"
1614   RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1615 else
1616   found="-rdynamic"
1617   RDYNAMIC="-rdynamic"
1618 fi
1619 AC_SUBST(RDYNAMIC)
1620 AC_MSG_RESULT($found)
1621
1622 dnl For certain native configurations, we need to check whether thread
1623 dnl support can be built in or not.
1624 dnl
1625 dnl Note that we only want this if we are both native (host == target),
1626 dnl and not doing a canadian cross build (build == host).
1627
1628 if test "${build}" = "${host}" -a "${host}" = "${target}" ; then
1629    case ${host_os} in
1630    aix*)
1631       AC_MSG_CHECKING(for AiX thread debugging library)
1632       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1633                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1634                                    [#ifndef PTHDB_VERSION_3
1635                                     #error
1636                                     #endif],
1637                                    gdb_cv_have_aix_thread_debug=yes,
1638                                    gdb_cv_have_aix_thread_debug=no)])
1639       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1640       if test "$gdb_cv_have_aix_thread_debug" = yes; then
1641          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1642          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1643          LIBS="$LIBS -lpthdebug"
1644
1645          # Older versions of AIX do not provide the declaration for
1646          # the getthrds function (it appears that it was introduced
1647          # with AIX 6.x).
1648          AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1649       fi
1650       ;;
1651    esac
1652    AC_SUBST(CONFIG_LDFLAGS)
1653 fi
1654
1655 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1656 dnl other error codes.
1657 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1658    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1659                   gdb_cv_thread_db_h_has_td_notalloc,
1660      AC_TRY_COMPILE(
1661        [#include <thread_db.h>],
1662        [int i = TD_NOTALLOC;],
1663        gdb_cv_thread_db_h_has_td_notalloc=yes,
1664        gdb_cv_thread_db_h_has_td_notalloc=no
1665      )
1666    )
1667    AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1668                   gdb_cv_thread_db_h_has_td_version,
1669      AC_TRY_COMPILE(
1670        [#include <thread_db.h>],
1671        [int i = TD_VERSION;],
1672        gdb_cv_thread_db_h_has_td_version=yes,
1673        gdb_cv_thread_db_h_has_td_version=no
1674      )
1675    )
1676    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1677                   gdb_cv_thread_db_h_has_td_notls,
1678      AC_TRY_COMPILE(
1679        [#include <thread_db.h>],
1680        [int i = TD_NOTLS;],
1681        gdb_cv_thread_db_h_has_td_notls=yes,
1682        gdb_cv_thread_db_h_has_td_notls=no
1683      )
1684    )
1685 fi
1686 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1687   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1688             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1689 fi
1690 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1691   AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1692             [Define if <thread_db.h> has the TD_VERSION error code.])
1693 fi
1694 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1695   AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1696             [Define if <thread_db.h> has the TD_NOTLS error code.])
1697 fi
1698
1699 dnl Set the host's .gdbinit filename.
1700 case $host_os in
1701   go32* | *djgpp*)
1702     gdbinit=gdb.ini
1703     ;;
1704   *)
1705     gdbinit=.gdbinit
1706     ;;
1707 esac
1708 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1709
1710 dnl Handle optional features that can be enabled.
1711
1712 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1713 # except that the argument to --with-sysroot is optional.
1714 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1715 if test "x$with_sysroot" = xyes; then
1716   with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1717 fi
1718 AC_ARG_WITH(sysroot,
1719   AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1720                  [search for usr/lib et al within DIR]),
1721   [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1722 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1723               [search for usr/lib et al within DIR])
1724 AC_SUBST(TARGET_SYSTEM_ROOT)
1725 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1726
1727 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1728     [automatically load a system-wide gdbinit file],
1729     [])
1730 GDB_AC_WITH_DIR(SYSTEM_GDBINIT_DIR, system-gdbinit-dir,
1731     [automatically load system-wide gdbinit files from this directory],
1732     [])
1733
1734 AM_GDB_WARNINGS
1735 AM_GDB_UBSAN
1736
1737 # In the Cygwin environment, we need some additional flags.
1738 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1739 [AC_EGREP_CPP(^lose$, [
1740 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1741 lose
1742 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1743
1744
1745 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1746 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1747 case ${host} in
1748   *go32* ) SER_HARDWIRE=ser-go32.o ;;
1749   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1750   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1751   *) SER_HARDWIRE="$SER_HARDWIRE ser-uds.o" ;;
1752 esac
1753 AC_SUBST(SER_HARDWIRE)
1754
1755 # libreadline needs libuser32.a in a cygwin environment
1756 WIN32LIBS=
1757 if test x"$gdb_cv_os_cygwin" = xyes; then
1758     WIN32LIBS="-luser32"
1759     case "${target}" in
1760         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1761         ;;
1762     esac
1763 fi
1764
1765 # The ser-tcp.c module requires sockets.
1766 # Note that WIN32APILIBS is set by GDB_AC_COMMON.
1767 WIN32LIBS="$WIN32LIBS $WIN32APILIBS"
1768
1769 # Add ELF support to GDB, but only if BFD includes ELF support.
1770 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1771                  [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1772 if test "$gdb_cv_var_elf" = yes; then
1773   CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
1774   AC_DEFINE(HAVE_ELF, 1,
1775             [Define if ELF support should be included.])
1776   # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1777   if test "$plugins" = "yes"; then
1778     AC_SEARCH_LIBS(dlopen, dl)
1779   fi
1780 fi
1781
1782 # Add macho support to GDB, but only if BFD includes it.
1783 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1784                  [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1785 if test "$gdb_cv_var_macho" = yes; then
1786   CONFIG_OBS="$CONFIG_OBS machoread.o"
1787 fi
1788
1789 # Add any host-specific objects to GDB.
1790 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1791
1792 # If building on ELF, look for lzma support for embedded compressed debug info.
1793 if test "$gdb_cv_var_elf" = yes; then
1794   AC_ARG_WITH(lzma,
1795     AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1796     [], [with_lzma=auto])
1797   AC_MSG_CHECKING([whether to use lzma])
1798   AC_MSG_RESULT([$with_lzma])
1799
1800   if test "${with_lzma}" != no; then
1801     AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1802                           [lzma_index_iter iter;
1803                            lzma_index_iter_init (&iter, 0);
1804                            lzma_mf_is_supported (LZMA_MF_HC3);])
1805     if test "$HAVE_LIBLZMA" != yes; then
1806       if test "$with_lzma" = yes; then
1807         AC_MSG_ERROR([missing liblzma for --with-lzma])
1808       fi
1809     fi
1810   fi
1811 fi
1812
1813 LIBGUI="../libgui/src/libgui.a"
1814 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1815 AC_SUBST(LIBGUI)
1816 AC_SUBST(GUI_CFLAGS_X)
1817
1818 WIN32LDAPP=
1819 AC_SUBST(WIN32LIBS)
1820 AC_SUBST(WIN32LDAPP)
1821
1822 case "${host}" in
1823 *-*-cygwin* | *-*-mingw* )
1824     configdir="win"
1825     ;;
1826 *)
1827     configdir="unix"
1828     ;;
1829 esac
1830
1831 GDBTKLIBS=
1832 if test "${enable_gdbtk}" = "yes"; then
1833
1834     # Gdbtk must have an absolute path to srcdir in order to run
1835     # properly when not installed.
1836     here=`pwd`
1837     cd ${srcdir}
1838     GDBTK_SRC_DIR=`pwd`
1839     cd $here
1840
1841     SC_PATH_TCLCONFIG
1842
1843     # If $no_tk is nonempty, then we can't do Tk, and there is no
1844     # point to doing Tcl.
1845     SC_PATH_TKCONFIG
1846
1847     if test -z "${no_tcl}" -a -z "${no_tk}"; then
1848         SC_LOAD_TCLCONFIG
1849
1850         # Check for in-tree tcl
1851         here=`pwd`
1852         cd ${srcdir}/..
1853         topdir=`pwd`
1854         cd ${here}
1855
1856         intree="no"
1857         if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
1858           intree="yes"
1859         fi
1860
1861         # Find Tcl private headers
1862         if test x"${intree}" = xno; then
1863           CY_AC_TCL_PRIVATE_HEADERS
1864           TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
1865           TCL_LIBRARY="${TCL_LIB_SPEC}"
1866           TCL_DEPS=""
1867         else
1868           # If building tcl in the same src tree, private headers
1869           # are not needed, but we need to be sure to use the right
1870           # headers library
1871           TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
1872           TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
1873           TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
1874         fi
1875         AC_SUBST(TCL_INCLUDE)
1876         AC_SUBST(TCL_LIBRARY)
1877         AC_SUBST(TCL_DEPS)
1878
1879         SC_LOAD_TKCONFIG
1880
1881         # Check for in-tree Tk
1882         intree="no"
1883         if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
1884           intree="yes"
1885         fi
1886
1887         # Find Tk private headers
1888         if test x"${intree}" = xno; then
1889           CY_AC_TK_PRIVATE_HEADERS
1890           TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
1891           TK_LIBRARY=${TK_LIB_SPEC}
1892           TK_DEPS=""
1893         else
1894           TK_INCLUDE="-I${TK_SRC_DIR}/generic"
1895           TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
1896           TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
1897         fi
1898         AC_SUBST(TK_INCLUDE)
1899         AC_SUBST(TK_LIBRARY)
1900         AC_SUBST(TK_DEPS)
1901         AC_SUBST(TK_XINCLUDES)
1902
1903         ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
1904
1905         # Include some libraries that Tcl and Tk want.
1906         TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
1907         # Yes, the ordering seems wrong here.  But it isn't.
1908         # TK_LIBS is the list of libraries that need to be linked
1909         # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
1910         # were in LIBS then any link tests after this point would
1911         # try to include things like `$(LIBGUI)', which wouldn't work.
1912         GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
1913
1914         CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
1915         CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
1916         CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
1917         CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
1918         CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
1919         CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
1920         CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
1921
1922         if test x"$gdb_cv_os_cygwin" = xyes; then
1923           WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
1924           WIN32LDAPP="-Wl,--subsystem,console"
1925           CONFIG_OBS="${CONFIG_OBS} gdbres.o"
1926         fi
1927
1928         AC_CONFIG_SUBDIRS(gdbtk)
1929     fi
1930 fi
1931
1932 AC_SUBST(X_CFLAGS)
1933 AC_SUBST(X_LDFLAGS)
1934 AC_SUBST(X_LIBS)
1935 AC_SUBST(GDBTKLIBS)
1936 AC_SUBST(GDBTK_CFLAGS)
1937 AC_SUBST(GDBTK_SRC_DIR)
1938
1939 AC_PATH_X
1940
1941 # Unlike the sim directory, whether a simulator is linked is controlled by
1942 # presence of a gdb_sim definition in the target configure.tgt entry.
1943 # This code just checks for a few cases where we'd like to ignore those
1944 # definitions, even when they're present in the '.mt' file.  These cases
1945 # are when --disable-sim is specified, or if the simulator directory is
1946 # not part of the source tree.
1947 #
1948 AC_ARG_ENABLE(sim,
1949 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
1950 [echo "enable_sim = $enable_sim";
1951  echo "enableval = ${enableval}";
1952  case "${enableval}" in
1953   yes) ignore_sim=false ;;
1954   no)  ignore_sim=true ;;
1955   *)   ignore_sim=false ;;
1956  esac],
1957 [ignore_sim=false])
1958
1959 if test ! -d "${srcdir}/../sim"; then
1960   ignore_sim=true
1961 fi
1962
1963 SIM=
1964 SIM_OBS=
1965 if test "${ignore_sim}" = "false"; then
1966   if test x"${gdb_sim}" != x ; then
1967     SIM="${gdb_sim}"
1968     SIM_OBS="remote-sim.o"
1969     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
1970
1971     # Some tdep code should only be compiled in when the ppc sim is
1972     # built.  PR sim/13418.
1973     case $target in
1974       powerpc*-*-*)
1975         AC_DEFINE(WITH_PPC_SIM, 1, [Define if the PPC simulator is being linked in.])
1976         ;;
1977     esac
1978   fi
1979 fi
1980 AC_SUBST(SIM)
1981 AC_SUBST(SIM_OBS)
1982
1983 AC_SUBST(ENABLE_CFLAGS)
1984 AC_SUBST(PROFILE_CFLAGS)
1985
1986 AC_SUBST(CONFIG_OBS)
1987 AC_SUBST(CONFIG_DEPS)
1988 AC_SUBST(CONFIG_SRCS)
1989 AC_SUBST(CONFIG_ALL)
1990 AC_SUBST(CONFIG_CLEAN)
1991 AC_SUBST(CONFIG_INSTALL)
1992 AC_SUBST(CONFIG_UNINSTALL)
1993
1994 # List of host floatformats.
1995 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
1996 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
1997 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
1998
1999 # target_subdir is used by the testsuite to find the target libraries.
2000 target_subdir=
2001 if test "${host}" != "${target}"; then
2002     target_subdir="${target_alias}/"
2003 fi
2004 AC_SUBST(target_subdir)
2005
2006 # Import nat definitions.
2007 nat_makefile_frag=/dev/null
2008 if test "${gdb_native}" = "yes"; then
2009   . ${srcdir}/configure.nat
2010   nativefile=$NAT_FILE
2011 fi
2012
2013 AC_SUBST(NAT_FILE)
2014 AC_SUBST(NATDEPFILES)
2015 AC_SUBST(NAT_CDEPS)
2016 AC_SUBST(LOADLIBES)
2017 AC_SUBST(MH_CFLAGS)
2018 AC_SUBST(XM_CLIBS)
2019 AC_SUBST(NAT_GENERATED_FILES)
2020 AC_SUBST(HAVE_NATIVE_GCORE_HOST)
2021 AC_SUBST_FILE(nat_makefile_frag)
2022
2023 if test x"${gdb_osabi}" != x ; then
2024     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2025                        [Define to the default OS ABI for this configuration.])
2026 fi
2027
2028 # Check for babeltrace and babeltrace-ctf
2029 AC_ARG_WITH(babeltrace,
2030   AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2031   [], [with_babeltrace=auto])
2032 AC_MSG_CHECKING([whether to use babeltrace])
2033 AC_MSG_RESULT([$with_babeltrace])
2034
2035 if test "x$with_babeltrace" = "xno"; then
2036   AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2037 else
2038   # Append -Werror to CFLAGS so that configure can catch the warning
2039   # "assignment from incompatible pointer type", which is related to
2040   # the babeltrace change from 1.0.3 to 1.1.0.  Babeltrace 1.1.0 works
2041   # in GDB, while babeltrace 1.0.3 is broken.
2042   # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2043   # safe to save and restore CFLAGS here.
2044   saved_CFLAGS=$CFLAGS
2045   CFLAGS="$CFLAGS -Werror"
2046   AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2047                         [#include <babeltrace/babeltrace.h>
2048                          #include <babeltrace/ctf/events.h>
2049                          #include <babeltrace/ctf/iterator.h>],
2050                         [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2051                         struct bt_ctf_event *event = NULL;
2052                         const struct bt_definition *scope;
2053
2054                         pos->type = BT_SEEK_BEGIN;
2055                         bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2056                         scope = bt_ctf_get_top_level_scope (event,
2057                                                            BT_STREAM_EVENT_HEADER);
2058                         bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2059                         ])
2060   CFLAGS=$saved_CFLAGS
2061
2062   if test "$HAVE_LIBBABELTRACE" != yes; then
2063      if test "$with_babeltrace" = yes; then
2064        AC_MSG_ERROR([babeltrace is missing or unusable])
2065      else
2066        AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2067      fi
2068   fi
2069 fi
2070
2071 # Check for xxhash
2072 AC_ARG_WITH(xxhash,
2073   AC_HELP_STRING([--with-xxhash], [use libxxhash for hashing (faster) (auto/yes/no)]),
2074   [], [with_xxhash=auto])
2075
2076 if test "x$with_xxhash" != "xno"; then
2077   AC_LIB_HAVE_LINKFLAGS([xxhash], [],
2078                         [#include <xxhash.h>],
2079                         [XXH32("foo", 3, 0);
2080                         ])
2081   if test "$HAVE_LIBXXHASH" != yes; then
2082     if test "$with_xxhash" = yes; then
2083       AC_MSG_ERROR([xxhash is missing or unusable])
2084     fi
2085   fi
2086   if test "x$with_xxhash" = "xauto"; then
2087     with_xxhash="$HAVE_LIBXXHASH"
2088   fi
2089 fi
2090
2091 AC_MSG_CHECKING([whether to use xxhash])
2092 AC_MSG_RESULT([$with_xxhash])
2093
2094 NM_H=
2095 rm -f nm.h
2096 if test "${nativefile}" != ""; then
2097     case "${nativefile}" in
2098       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2099       * ) GDB_NM_FILE="${nativefile}"
2100     esac
2101     AC_CONFIG_LINKS([nm.h:$GDB_NM_FILE], [echo > stamp-nmh],
2102                     [GDB_NM_FILE=$GDB_NM_FILE])
2103     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2104     NM_H=nm.h
2105 fi
2106 AC_SUBST(GDB_NM_FILE)
2107 AC_SUBST(NM_H)
2108
2109 dnl Add dependency for xsltproc if building with maintainer-mode enabled.
2110 AC_PATH_PROGS(XSLTPROC, xsltproc, missing)
2111 if test "x$USE_MAINTAINER_MODE" = xyes; then
2112   if test "${XSLTPROC}" = missing; then
2113     AC_ERROR(unable to find xsltproc.  maintainer-mode requires xsltproc.)
2114   fi
2115 fi
2116 AC_SUBST(XSLTPROC)
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 GDB_AC_SELFTEST([
2127   CONFIG_OBS="$CONFIG_OBS \$(SELFTESTS_OBS)"
2128   CONFIG_SRCS="$CONFIG_SRCS \$(SELFTESTS_SRCS)"
2129 ])
2130
2131 GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
2132 GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
2133 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2134 AC_CONFIG_FILES([Makefile gdb-gdb.gdb gdb-gdb.py doc/Makefile data-directory/Makefile])
2135
2136 AC_OUTPUT