gdb/configure.ac

   1 dnl Autoconf configure script for GDB, the GNU debugger.
   2 dnl Copyright (C) 1995-2018 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 AC_INIT(main.c)
  22 AC_CONFIG_HEADER(config.h:config.in)
  23 AM_MAINTAINER_MODE
  24
  25 # Set the 'development' global.
  26 . $srcdir/../bfd/development.sh
  27
  28 AC_PROG_CC
  29 AC_PROG_CXX
  30
  31 AC_USE_SYSTEM_EXTENSIONS
  32 ACX_LARGEFILE
  33 AM_PROG_CC_STDC
  34 AM_PROG_INSTALL_STRIP
  35
  36 AC_CONFIG_AUX_DIR(..)
  37 AC_CANONICAL_SYSTEM
  38 AC_ARG_PROGRAM
  39
  40 # We require a C++11 compiler.  Check if one is available, and if
  41 # necessary, set CXX_DIALECT to some -std=xxx switch.
  42 AX_CXX_COMPILE_STDCXX(11, , mandatory)
  43
  44 # Dependency checking.
  45 ZW_CREATE_DEPDIR
  46 ZW_PROG_COMPILER_DEPENDENCIES([CC])
  47
  48 gnulib_extra_configure_args=
  49 # If large-file support is disabled, make sure gnulib does the same.
  50 if test "$enable_largefile" = no; then
  51 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
  52 fi
  53
  54 # Configure gnulib.  We need to build gnulib under some other
  55 # directory not "gnulib", to avoid the problem of both GDB and
  56 # GDBserver wanting to build it in the same directory, when building
  57 # in the source dir.
  58 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"],
  59                   ["$gnulib_extra_configure_args"])
  60
  61 dnl List of object files and targets accumulated by configure.
  62
  63 CONFIG_OBS=
  64 CONFIG_DEPS=
  65 CONFIG_SRCS=
  66 ENABLE_CFLAGS=
  67
  68 CONFIG_ALL=
  69 CONFIG_CLEAN=
  70 CONFIG_INSTALL=
  71 CONFIG_UNINSTALL=
  72
  73 dnl Set up for gettext.
  74 ZW_GNU_GETTEXT_SISTER_DIR
  75
  76 localedir='${datadir}/locale'
  77 AC_SUBST(localedir)
  78
  79 if test x"$USE_NLS" = xyes; then
  80    CONFIG_ALL="$CONFIG_ALL all-po"
  81    CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
  82    CONFIG_INSTALL="$CONFIG_INSTALL install-po"
  83    CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
  84 fi
  85
  86 GNULIB=build-gnulib/import
  87
  88 # For Makefile dependencies.
  89 GNULIB_STDINT_H=
  90 if test x"$STDINT_H" != x; then
  91   GNULIB_STDINT_H=$GNULIB/$STDINT_H
  92 fi
  93 AC_SUBST(GNULIB_STDINT_H)
  94
  95 PACKAGE=gdb
  96 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
  97 AC_SUBST(PACKAGE)
  98
  99 # We never need to detect it in this sub-configure.
 100 # But preserve it for config.status --recheck.
 101 AC_ARG_VAR(MAKEINFO,
 102   [Parent configure detects if it is of sufficient version.])
 103 AC_ARG_VAR(MAKEINFOFLAGS,
 104   [Parameters for MAKEINFO.])
 105
 106 MAKEINFO_EXTRA_FLAGS=""
 107 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
 108   [echo '@clicksequence{a @click{} b}' >conftest.texinfo
 109   if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
 110     gdb_cv_have_makeinfo_click=yes
 111   else
 112     gdb_cv_have_makeinfo_click=no
 113   fi])
 114 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
 115   MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
 116 fi
 117 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
 118
 119 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
 120     [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
 121     [${libdir}/debug])
 122
 123 # We can't pass paths as command line arguments.
 124 # Mingw32 tries to be clever and will convert the paths for us.
 125 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
 126 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
 127 # This breaks GDB's relocatable path conversions since paths passed in
 128 # config.h would not get so translated, the path prefixes no longer match.
 129 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
 130
 131 # GDB's datadir relocation
 132
 133 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
 134     [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
 135     [${datadir}/gdb])
 136
 137 AC_ARG_WITH(relocated-sources,
 138 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
 139 [reloc_srcdir="${withval}"
 140  AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
 141               [Relocated directory for source files. ])
 142 ])
 143
 144 AC_MSG_CHECKING([for default auto-load directory])
 145 AC_ARG_WITH(auto-load-dir,
 146 AS_HELP_STRING([--with-auto-load-dir=PATH],
 147   [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
 148   [with_auto_load_dir='$debugdir:$datadir/auto-load'])
 149 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
 150 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
 151               [Directories from which to load auto-loaded scripts.])
 152 AC_MSG_RESULT([$with_auto_load_dir])
 153
 154 AC_MSG_CHECKING([for default auto-load safe-path])
 155 AC_ARG_WITH(auto-load-safe-path,
 156 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
 157   [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
 158 AS_HELP_STRING([--without-auto-load-safe-path],
 159                [do not restrict auto-loaded files locations]),
 160     [if test "$with_auto_load_safe_path" = "no"; then
 161      with_auto_load_safe_path="/"
 162      fi],
 163 [with_auto_load_safe_path="$with_auto_load_dir"])
 164 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
 165 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
 166               [Directories safe to hold auto-loaded files.])
 167 AC_MSG_RESULT([$with_auto_load_safe_path])
 168
 169 AC_CONFIG_SUBDIRS(testsuite)
 170
 171 # Check whether to support alternative target configurations
 172 AC_ARG_ENABLE(targets,
 173 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
 174 [case "${enableval}" in
 175   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
 176             ;;
 177   no)       enable_targets= ;;
 178   *)        enable_targets=$enableval ;;
 179 esac])
 180
 181 # Check whether to enable 64-bit support on 32-bit hosts
 182 AC_ARG_ENABLE(64-bit-bfd,
 183 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
 184 [case "${enableval}" in
 185   yes)  want64=true  ;;
 186   no)   want64=false ;;
 187   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
 188 esac],[want64=false])dnl
 189
 190 # Provide defaults for some variables set by the per-host and per-target
 191 # configuration.
 192 gdb_host_obs=posix-hdep.o
 193
 194 if test "${target}" = "${host}"; then
 195   gdb_native=yes
 196 else
 197   gdb_native=no
 198 fi
 199
 200 . $srcdir/configure.host
 201
 202 # Add in the common host objects.
 203 . $srcdir/common/common.host
 204 gdb_host_obs="$gdb_host_obs $common_host_obs"
 205
 206 # Accumulate some settings from configure.tgt over all enabled targets
 207
 208 TARGET_OBS=
 209 all_targets=
 210 HAVE_NATIVE_GCORE_TARGET=
 211
 212 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 213 do
 214   if test "$targ_alias" = "all"; then
 215     all_targets=true
 216   else
 217     # Canonicalize the secondary target names.
 218     result=`$ac_config_sub $targ_alias 2>/dev/null`
 219     if test -n "$result"; then
 220         targ=$result
 221     else
 222         targ=$targ_alias
 223     fi
 224
 225     . ${srcdir}/configure.tgt
 226
 227     AS_IF([test -z "${gdb_target_obs}"],
 228       [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
 229
 230     # Target-specific object files
 231     for i in ${gdb_target_obs}; do
 232         case " $TARGET_OBS " in
 233         *" ${i} "*) ;;
 234         *)
 235           TARGET_OBS="$TARGET_OBS ${i}"
 236           ;;
 237         esac
 238     done
 239
 240     # Check whether this target needs 64-bit CORE_ADDR
 241     if test x${want64} = xfalse; then
 242       . ${srcdir}/../bfd/config.bfd
 243     fi
 244
 245     # Check whether this target is native and supports gcore.
 246     if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
 247        && $gdb_have_gcore; then
 248       HAVE_NATIVE_GCORE_TARGET=1
 249     fi
 250   fi
 251 done
 252
 253 if test x${all_targets} = xtrue; then
 254
 255   # We want all 64-bit targets if we either:
 256   #  - run on a 64-bit host  or
 257   #  - already require 64-bit support for some other target  or
 258   #  - the --enable-64-bit-bfd option was supplied
 259   # Otherwise we only support all 32-bit targets.
 260   #
 261   # NOTE: This test must be in sync with the corresponding
 262   #       tests in BFD!
 263
 264   if test x${want64} = xfalse; then
 265     AC_CHECK_SIZEOF(long)
 266     if test "x${ac_cv_sizeof_long}" = "x8"; then
 267       want64=true
 268     fi
 269   fi
 270   if test x${want64} = xtrue; then
 271     TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
 272   else
 273     TARGET_OBS='$(ALL_TARGET_OBS)'
 274   fi
 275 fi
 276
 277 AC_SUBST(TARGET_OBS)
 278 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
 279
 280 # For other settings, only the main target counts.
 281 gdb_sim=
 282 gdb_osabi=
 283 build_gdbserver=
 284 targ=$target; . ${srcdir}/configure.tgt
 285
 286 # Fetch the default architecture and default target vector from BFD.
 287 targ=$target; . $srcdir/../bfd/config.bfd
 288
 289 # We only want the first architecture, so strip off the others if
 290 # there is more than one.
 291 targ_archs=`echo $targ_archs | sed 's/ .*//'`
 292
 293 if test "x$targ_archs" != x; then
 294   AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
 295     [Define to BFD's default architecture. ])
 296 fi
 297 if test "x$targ_defvec" != x; then
 298   AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
 299     [Define to BFD's default target vector. ])
 300 fi
 301
 302 # The CLI cannot be disabled yet, but may be in the future.
 303
 304 # Enable CLI.
 305 AC_ARG_ENABLE(gdbcli,
 306 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
 307   [case $enableval in
 308     yes)
 309       ;;
 310     no)
 311       AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
 312     *)
 313       AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
 314   esac],
 315   [enable_gdbcli=yes])
 316 if test x"$enable_gdbcli" = xyes; then
 317   if test -d $srcdir/cli; then
 318     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
 319     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
 320     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
 321     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
 322   fi
 323 fi
 324
 325 # Enable MI.
 326 AC_ARG_ENABLE(gdbmi,
 327 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
 328   [case $enableval in
 329     yes | no)
 330       ;;
 331     *)
 332       AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
 333   esac],
 334   [enable_gdbmi=yes])
 335 if test x"$enable_gdbmi" = xyes; then
 336   if test -d $srcdir/mi; then
 337     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
 338     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
 339     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
 340     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
 341   fi
 342 fi
 343
 344 # Enable TUI.
 345 AC_ARG_ENABLE(tui,
 346 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
 347   [case $enableval in
 348     yes | no | auto)
 349       ;;
 350     *)
 351       AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
 352   esac],enable_tui=auto)
 353
 354 # Enable gdbtk.
 355 AC_ARG_ENABLE(gdbtk,
 356 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
 357   [case $enableval in
 358     yes | no)
 359       ;;
 360     *)
 361       AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
 362   esac],
 363   [if test -d $srcdir/gdbtk; then
 364     enable_gdbtk=yes
 365   else
 366     enable_gdbtk=no
 367   fi])
 368 # We unconditionally disable gdbtk tests on selected platforms.
 369 case $host_os in
 370   go32* | windows*)
 371     AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
 372     enable_gdbtk=no ;;
 373 esac
 374
 375 # Libunwind support for ia64.
 376
 377 AC_ARG_WITH(libunwind-ia64,
 378 AS_HELP_STRING([--with-libunwind-ia64],
 379                [use libunwind frame unwinding for ia64 targets]),,
 380             [with_libunwind_ia64=auto])
 381
 382 # Backward compatibility option.
 383 if test "${with_libunwind+set}" = set; then
 384   if test x"$with_libunwind_ia64" != xauto; then
 385     AC_MSG_ERROR(
 386       [option --with-libunwind is deprecated, use --with-libunwind-ia64])
 387   fi
 388   AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
 389   with_libunwind_ia64="$with_libunwind"
 390 fi
 391
 392 case "$with_libunwind_ia64" in
 393   yes | no)
 394     ;;
 395   auto)
 396     AC_CHECK_HEADERS(libunwind-ia64.h)
 397     with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
 398     ;;
 399   *)
 400     AC_MSG_ERROR(
 401       [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
 402     ;;
 403 esac
 404
 405 if test x"$with_libunwind_ia64" = xyes; then
 406   AC_CHECK_HEADERS(libunwind-ia64.h)
 407   if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
 408     AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
 409   fi
 410   CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
 411   CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
 412   CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
 413 fi
 414
 415 opt_curses=no
 416 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
 417
 418 prefer_curses=no
 419 if test "$opt_curses" = "yes"; then
 420   prefer_curses=yes
 421 fi
 422
 423 # Profiling support.
 424 AC_ARG_ENABLE(profiling,
 425 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
 426   [case $enableval in
 427     yes | no)
 428       ;;
 429     *)
 430       AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
 431   esac],
 432  [enable_profiling=no])
 433
 434 AC_CHECK_FUNCS(monstartup _mcleanup)
 435 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
 436 [AC_TRY_LINK(
 437 [#include <stdlib.h>
 438 extern char _etext;
 439 ],
 440 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
 441 if test $ac_cv_var__etext = yes; then
 442   AC_DEFINE(HAVE__ETEXT, 1,
 443             [Define to 1 if your system has the _etext variable. ])
 444 fi
 445 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
 446 [AC_TRY_LINK(
 447 [#include <stdlib.h>
 448 extern char etext;
 449 ],
 450 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
 451 if test $ac_cv_var_etext = yes; then
 452   AC_DEFINE(HAVE_ETEXT, 1,
 453             [Define to 1 if your system has the etext variable. ])
 454 fi
 455 if test "$enable_profiling" = yes ; then
 456   if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
 457     AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
 458   fi
 459   PROFILE_CFLAGS=-pg
 460   OLD_CFLAGS="$CFLAGS"
 461   CFLAGS="$CFLAGS $PROFILE_CFLAGS"
 462
 463   AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
 464     [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
 465      ac_cv_cc_supports_pg=no)])
 466
 467   if test $ac_cv_cc_supports_pg = no; then
 468     AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
 469   fi
 470
 471   CFLAGS="$OLD_CFLAGS"
 472 fi
 473
 474 CODESIGN_CERT=
 475 AC_ARG_ENABLE([codesign],
 476   AS_HELP_STRING([--enable-codesign=CERT],
 477                  [sign gdb with 'codesign -s CERT']),
 478   [CODESIGN_CERT=$enableval])
 479 AC_SUBST([CODESIGN_CERT])
 480
 481 ACX_PKGVERSION([GDB])
 482 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
 483 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
 484 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
 485
 486 # --------------------- #
 487 # Checks for programs.  #
 488 # --------------------- #
 489
 490 AC_PROG_AWK
 491 AC_PROG_INSTALL
 492 AC_PROG_LN_S
 493 AC_PROG_RANLIB
 494 AC_PROG_YACC
 495
 496 AC_CHECK_TOOL(AR, ar)
 497 AC_CHECK_TOOL(DLLTOOL, dlltool)
 498 AC_CHECK_TOOL(WINDRES, windres)
 499
 500 case $host_os in
 501   gnu*)
 502     # Needed for GNU Hurd hosts.
 503     AC_CHECK_TOOL(MIG, mig)
 504     if test x"$MIG" = x; then
 505       AC_MSG_ERROR([MIG not found but required for $host hosts])
 506     fi
 507     ;;
 508 esac
 509
 510 # ---------------------- #
 511 # Checks for libraries.  #
 512 # ---------------------- #
 513
 514 # We might need to link with -lm; most simulators need it.
 515 AC_CHECK_LIB(m, main)
 516
 517 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 518 AC_SEARCH_LIBS(gethostbyname, nsl)
 519
 520 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 521 AC_SEARCH_LIBS(socketpair, socket)
 522
 523 # Link in zlib if we can.  This allows us to read compressed debug sections.
 524 AM_ZLIB
 525
 526 # On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
 527 # On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
 528 AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
 529   [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
 530             [Define to 1 if your system has the kinfo_getvmmap function. ])])
 531
 532 # fbsd-nat.c can also use kinfo_getfile.
 533 AC_SEARCH_LIBS(kinfo_getfile, util util-freebsd,
 534   [AC_DEFINE(HAVE_KINFO_GETFILE, 1,
 535             [Define to 1 if your system has the kinfo_getfile function. ])])
 536
 537 AM_ICONV
 538
 539 # GDB may fork/exec the iconv program to get the list of supported character
 540 # sets.  Allow the user to specify where to find it.
 541 # There are several factors affecting the choice of option name:
 542 # - There is already --with-libiconv-prefix but we can't use it, it specifies
 543 #   the build-time location of libiconv files.
 544 # - The program we need to find is iconv, which comes with glibc.  The user
 545 #   doesn't necessarily have libiconv installed.  Therefore naming this
 546 #   --with-libiconv-foo feels wrong.
 547 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
 548 #   defined to work on directories not files (though it really doesn't know
 549 #   the difference).
 550 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
 551 #   with --with-libiconv-prefix.
 552 # Putting these together is why the option name is --with-iconv-bin.
 553
 554 AC_ARG_WITH(iconv-bin,
 555 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
 556 [iconv_bin="${withval}"
 557  AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
 558                     [Path of directory of iconv program.])
 559  GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
 560 ])
 561
 562 # For the TUI, we need enhanced curses functionality.
 563 if test x"$enable_tui" != xno; then
 564   prefer_curses=yes
 565 fi
 566
 567 curses_found=no
 568 if test x"$prefer_curses" = xyes; then
 569   # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
 570   # curses library because the latter might not provide all the
 571   # functionality we need.  However, this leads to problems on systems
 572   # where the linker searches /usr/local/lib, but the compiler doesn't
 573   # search /usr/local/include, if ncurses is installed in /usr/local.  A
 574   # default installation of ncurses on alpha*-dec-osf* will lead to such
 575   # a situation.
 576   AC_SEARCH_LIBS(waddstr, [ncursesw ncurses cursesX curses])
 577
 578   if test "$ac_cv_search_waddstr" != no; then
 579     curses_found=yes
 580   fi
 581 fi
 582
 583 # Check whether we should enable the TUI, but only do so if we really
 584 # can.
 585 if test x"$enable_tui" != xno; then
 586   if test -d $srcdir/tui; then
 587     if test "$curses_found" != no; then
 588       CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
 589       CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
 590       CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
 591       ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
 592     else
 593       if test x"$enable_tui" = xyes; then
 594         AC_MSG_ERROR([no enhanced curses library found; disable TUI])
 595       else
 596         AC_MSG_WARN([no enhanced curses library found; disabling TUI])
 597       fi
 598     fi
 599   fi
 600 fi
 601
 602 # Since GDB uses Readline, we need termcap functionality.  In many
 603 # cases this will be provided by the curses library, but some systems
 604 # have a separate termcap library, or no curses library at all.
 605
 606 case $host_os in
 607   cygwin*)
 608     if test -d $srcdir/libtermcap; then
 609       LIBS="../libtermcap/libtermcap.a $LIBS"
 610       ac_cv_search_tgetent="../libtermcap/libtermcap.a"
 611     fi ;;
 612   go32* | *djgpp*)
 613     ac_cv_search_tgetent="none required"
 614     ;;
 615 esac
 616
 617 # These are the libraries checked by Readline.
 618 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncursesw ncurses])
 619
 620 if test "$ac_cv_search_tgetent" = no; then
 621   CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
 622 fi
 623
 624 AC_ARG_WITH([system-readline],
 625   [AS_HELP_STRING([--with-system-readline],
 626                   [use installed readline library])])
 627
 628 if test "$with_system_readline" = yes; then
 629   READLINE=-lreadline
 630   READLINE_DEPS=
 631   READLINE_CFLAGS=
 632   READLINE_TEXI_INCFLAG=
 633 else
 634   READLINE='$(READLINE_DIR)/libreadline.a'
 635   READLINE_DEPS='$(READLINE)'
 636   READLINE_CFLAGS='-I$(READLINE_SRC)/..'
 637   READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
 638 fi
 639 AC_SUBST(READLINE)
 640 AC_SUBST(READLINE_DEPS)
 641 AC_SUBST(READLINE_CFLAGS)
 642 AC_SUBST(READLINE_TEXI_INCFLAG)
 643
 644 # Generate jit-reader.h
 645
 646 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
 647 TARGET_PTR=
 648
 649 AC_CHECK_SIZEOF(unsigned long long)
 650 AC_CHECK_SIZEOF(unsigned long)
 651 AC_CHECK_SIZEOF(unsigned __int128)
 652
 653 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
 654   TARGET_PTR="unsigned long"
 655 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
 656   TARGET_PTR="unsigned long long"
 657 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
 658   TARGET_PTR="unsigned __int128"
 659 else
 660   TARGET_PTR="unsigned long"
 661 fi
 662
 663 AC_SUBST(TARGET_PTR)
 664 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
 665
 666 AC_SEARCH_LIBS(dlopen, dl)
 667
 668 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
 669                 [directory to load the JIT readers from],
 670                 [${libdir}/gdb])
 671
 672 AC_ARG_WITH(expat,
 673   AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
 674   [], [with_expat=auto])
 675 AC_MSG_CHECKING([whether to use expat])
 676 AC_MSG_RESULT([$with_expat])
 677
 678 if test "${with_expat}" = no; then
 679   AC_MSG_WARN([expat support disabled; some features may be unavailable.])
 680   HAVE_LIBEXPAT=no
 681 else
 682   AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
 683                         [XML_Parser p = XML_ParserCreate (0);])
 684   if test "$HAVE_LIBEXPAT" != yes; then
 685     if test "$with_expat" = yes; then
 686       AC_MSG_ERROR([expat is missing or unusable])
 687     else
 688       AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
 689     fi
 690   else
 691     save_LIBS=$LIBS
 692     LIBS="$LIBS $LIBEXPAT"
 693     AC_CHECK_FUNCS(XML_StopParser)
 694     LIBS=$save_LIBS
 695   fi
 696 fi
 697
 698 AC_ARG_WITH(mpfr,
 699   AS_HELP_STRING([--with-mpfr], [include MPFR support (auto/yes/no)]),
 700   [], [with_mpfr=auto])
 701 AC_MSG_CHECKING([whether to use MPFR])
 702 AC_MSG_RESULT([$with_mpfr])
 703
 704 if test "${with_mpfr}" = no; then
 705   AC_MSG_WARN([MPFR support disabled; some features may be unavailable.])
 706   HAVE_LIBMPFR=no
 707 else
 708   AC_LIB_HAVE_LINKFLAGS([mpfr], [], [#include <mpfr.h>],
 709                         [mpfr_exp_t exp; mpfr_t x;
 710                          mpfr_frexp (&exp, x, x, MPFR_RNDN);])
 711   if test "$HAVE_LIBMPFR" != yes; then
 712     if test "$with_mpfr" = yes; then
 713       AC_MSG_ERROR([MPFR is missing or unusable])
 714     else
 715       AC_MSG_WARN([MPFR is missing or unusable; some features may be unavailable.])
 716     fi
 717   fi
 718 fi
 719
 720 # --------------------- #
 721 # Check for libpython.  #
 722 # --------------------- #
 723
 724 dnl Utility to simplify finding libpython.
 725 dnl $1 = pythonX.Y
 726 dnl $2 = the shell variable to assign the result to
 727 dnl      If libpython is found we store $version here.
 728 dnl $3 = additional flags to add to CPPFLAGS
 729 dnl $4 = additional flags to add to LIBS
 730
 731 AC_DEFUN([AC_TRY_LIBPYTHON],
 732 [
 733   version=$1
 734   define([have_libpython_var],$2)
 735   new_CPPFLAGS=$3
 736   new_LIBS=$4
 737   AC_MSG_CHECKING([for ${version}])
 738   save_CPPFLAGS=$CPPFLAGS
 739   save_LIBS=$LIBS
 740   CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
 741   LIBS="$new_LIBS $LIBS"
 742   found_usable_python=no
 743   AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "Python.h"]],
 744                                  [[Py_Initialize ();]])],
 745                  [have_libpython_var=${version}
 746                   found_usable_python=yes
 747                   PYTHON_CPPFLAGS=$new_CPPFLAGS
 748                   PYTHON_LIBS=$new_LIBS])
 749   CPPFLAGS=$save_CPPFLAGS
 750   LIBS=$save_LIBS
 751   AC_MSG_RESULT([${found_usable_python}])
 752 ])
 753
 754 dnl There are several different values for --with-python:
 755 dnl
 756 dnl no -   Don't include python support.
 757 dnl yes -  Include python support, error if it's missing.
 758 dnl        If we find python in $PATH, use it to fetch configure options,
 759 dnl        otherwise assume the compiler can find it with no help from us.
 760 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 761 dnl auto - Same as "yes", but if python is missing from the system,
 762 dnl        fall back to "no".
 763 dnl /path/to/python/exec-prefix -
 764 dnl        Use the python located in this directory.
 765 dnl        If /path/to/python/exec-prefix/bin/python exists, use it to find
 766 dnl        the compilation parameters.  Otherwise use
 767 dnl        -I/path/to/python/exec-prefix/include,
 768 dnl        -L/path/to/python/exec-prefix/lib.
 769 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 770 dnl        NOTE: This case is historical.  It is what was done for 7.0/7.1
 771 dnl        but is deprecated.
 772 dnl /path/to/python/executable -
 773 dnl        Run python-config.py with this version of python to fetch the
 774 dnl        compilation parameters.
 775 dnl        NOTE: This needn't be the real python executable.
 776 dnl        In a cross-compilation scenario (build != host), this could be
 777 dnl        a shell script that provides what python-config.py provides for
 778 dnl        --ldflags, --includes, --exec-prefix.
 779 dnl python-executable -
 780 dnl        Find python-executable in $PATH, and then handle the same as
 781 dnl        /path/to/python/executable.
 782 dnl
 783 dnl If a python program is specified, it is used to run python-config.py and
 784 dnl is passed --ldflags, --includes, --exec-prefix.
 785
 786 AC_ARG_WITH(python,
 787   AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
 788   [], [with_python=auto])
 789 AC_MSG_CHECKING([whether to use python])
 790 AC_MSG_RESULT([$with_python])
 791
 792 if test "${with_python}" = no; then
 793   AC_MSG_WARN([python support disabled; some features may be unavailable.])
 794   have_libpython=no
 795 else
 796   case "${with_python}" in
 797   [[\\/]]* | ?:[[\\/]]*)
 798     if test -d ${with_python}; then
 799       # Assume the python binary is ${with_python}/bin/python.
 800       python_prog="${with_python}/bin/python"
 801       python_prefix=
 802       # If python does not exit ${with_python}/bin, then try in
 803       # ${with_python}.  On Windows/MinGW, this is where the Python
 804       # executable is.
 805       if test ! -x "${python_prog}"; then
 806         python_prog="${with_python}/python"
 807         python_prefix=
 808       fi
 809       if test ! -x "${python_prog}"; then
 810         # Fall back to gdb 7.0/7.1 behaviour.
 811         python_prog=missing
 812         python_prefix=${with_python}
 813       fi
 814     elif test -x "${with_python}"; then
 815       # While we can't run python compiled for $host (unless host == build),
 816       # the user could write a script that provides the needed information,
 817       # so we support that.
 818       python_prog=${with_python}
 819       python_prefix=
 820     else
 821       AC_ERROR(invalid value for --with-python)
 822     fi
 823     ;;
 824   */*)
 825     # Disallow --with-python=foo/bar.
 826     AC_ERROR(invalid value for --with-python)
 827     ;;
 828   *)
 829     # The user has either specified auto, yes, or the name of the python
 830     # program assumed to be in $PATH.
 831     python_prefix=
 832     case "${with_python}" in
 833     yes | auto)
 834       if test ${build} = ${host}; then
 835         AC_PATH_PROG(python_prog_path, python, missing)
 836         if test "${python_prog_path}" = missing; then
 837           python_prog=missing
 838         else
 839           python_prog=${python_prog_path}
 840         fi
 841       else
 842         # Not much we can do except assume the cross-compiler will find the
 843         # right files.
 844         python_prog=missing
 845       fi
 846       ;;
 847     *)
 848       # While we can't run python compiled for $host (unless host == build),
 849       # the user could write a script that provides the needed information,
 850       # so we support that.
 851       python_prog="${with_python}"
 852       AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
 853       if test "${python_prog_path}" = missing; then
 854         AC_ERROR(unable to find python program ${python_prog})
 855       fi
 856       ;;
 857     esac
 858   esac
 859
 860   if test "${python_prog}" != missing; then
 861     # We have a python program to use, but it may be too old.
 862     # Don't flag an error for --with-python=auto (the default).
 863     have_python_config=yes
 864     python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
 865     if test $? != 0; then
 866       have_python_config=failed
 867       if test "${with_python}" != auto; then
 868         AC_ERROR(failure running python-config --includes)
 869       fi
 870     fi
 871     python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
 872     if test $? != 0; then
 873       have_python_config=failed
 874       if test "${with_python}" != auto; then
 875         AC_ERROR(failure running python-config --ldflags)
 876       fi
 877     fi
 878     python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
 879     if test $? != 0; then
 880       have_python_config=failed
 881       if test "${with_python}" != auto; then
 882         AC_ERROR(failure running python-config --exec-prefix)
 883       fi
 884     fi
 885   else
 886     # We do not have a python executable we can use to determine where
 887     # to find the Python headers and libs.  We cannot guess the include
 888     # path from the python_prefix either, because that include path
 889     # depends on the Python version.  So, there is nothing much we can
 890     # do except assume that the compiler will be able to find those files.
 891     python_includes=
 892     python_libs=
 893     have_python_config=no
 894   fi
 895
 896   # If we have python-config, only try the configuration it provides.
 897   # Otherwise fallback on the old way of trying different versions of
 898   # python in turn.
 899
 900   have_libpython=no
 901   if test "${have_python_config}" = yes; then
 902     # Determine the Python version by extracting "-lpython<version>"
 903     # part of the python_libs. <version> is usually X.Y with X and Y
 904     # being decimal numbers, but can also be XY (seen on Windows).
 905     #
 906     # The extraction is performed using sed with a regular expression.
 907     # Initially, the regexp used was using the '?' quantifier to make
 908     # the dot in the version number optional.  Unfortunately, this
 909     # does not work with non-GNU versions of sed because, because of
 910     # what looks like a limitation (the '?' quantifier does not work
 911     # with back-references).  We work around this limitation by using
 912     # the '*' quantifier instead.  It means that, in theory, we might
 913     # match unexpected version strings such as "-lpython2..7", but
 914     # this seems unlikely in practice.  And even if that happens,
 915     # an error will be triggered later on, when checking that version
 916     # number.
 917     python_version=`echo " ${python_libs} " \
 918                          | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
 919     case "${python_version}" in
 920     python*)
 921       AC_TRY_LIBPYTHON(${python_version}, have_libpython,
 922                        ${python_includes}, ${python_libs})
 923       ;;
 924     *)
 925       AC_MSG_ERROR([unable to determine python version from ${python_libs}])
 926       ;;
 927     esac
 928   elif test "${have_python_config}" != failed; then
 929     if test "${have_libpython}" = no; then
 930       AC_TRY_LIBPYTHON(python2.7, have_libpython,
 931                        ${python_includes}, "-lpython2.7 ${python_libs}")
 932     fi
 933     if test "${have_libpython}" = no; then
 934       AC_TRY_LIBPYTHON(python2.6, have_libpython,
 935                        ${python_includes}, "-lpython2.6 ${python_libs}")
 936     fi
 937     if test ${have_libpython} = no; then
 938       AC_TRY_LIBPYTHON(python2.5, have_libpython,
 939                        ${python_includes}, "-lpython2.5 ${python_libs}")
 940     fi
 941     if test ${have_libpython} = no; then
 942       AC_TRY_LIBPYTHON(python2.4, have_libpython,
 943                        ${python_includes}, "-lpython2.4 ${python_libs}")
 944     fi
 945   fi
 946   if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
 947     AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
 948   elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
 949     AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
 950   elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
 951     AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
 952   elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
 953     AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
 954   fi
 955
 956   if test "${have_libpython}" = no; then
 957     case "${with_python}" in
 958     yes)
 959       AC_MSG_ERROR([python is missing or unusable])
 960       ;;
 961     auto)
 962       AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
 963       ;;
 964     *)
 965       AC_MSG_ERROR([no usable python found at ${with_python}])
 966       ;;
 967     esac
 968   else
 969     if test -n "${python_prefix}"; then
 970       AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
 971                          [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
 972       GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
 973     fi
 974   fi
 975 fi
 976
 977 if test "${have_libpython}" != no; then
 978   AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
 979   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
 980   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
 981   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
 982   CONFIG_INSTALL="$CONFIG_INSTALL install-python"
 983   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
 984
 985   # Flags needed to compile Python code (taken from python-config --cflags).
 986   # We cannot call python-config directly because it will output whatever was
 987   # used when compiling the Python interpreter itself, including flags which
 988   # would make the python-related objects be compiled differently from the
 989   # rest of GDB (e.g., -O2 and -fPIC).
 990   if test "${GCC}" = yes; then
 991     tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
 992   fi
 993
 994   if test "x${tentative_python_cflags}" != x; then
 995     AC_MSG_CHECKING(compiler flags for python code)
 996     for flag in ${tentative_python_cflags}; do
 997       # Check that the compiler accepts it
 998       saved_CFLAGS="$CFLAGS"
 999       CFLAGS="$CFLAGS $flag"
1000       AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
1001       CFLAGS="$saved_CFLAGS"
1002     done
1003     AC_MSG_RESULT(${PYTHON_CFLAGS})
1004   fi
1005
1006   # On x64 Windows, Python's include headers, and pyconfig.h in
1007   # particular, rely on MS_WIN64 macro to detect that it's a 64bit
1008   # version of Windows.  Unfortunately, MS_WIN64 is only defined if
1009   # _MSC_VER, a Microsoft-specific macro, is defined.  So, when
1010   # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
1011   # The issue was reported to the Python community, but still isn't
1012   # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
1013
1014   case "$gdb_host" in
1015     mingw64)
1016            if test "${GCC}" = yes; then
1017              CPPFLAGS="$CPPFLAGS -DMS_WIN64"
1018            fi
1019            ;;
1020   esac
1021
1022   # Note that "python -m threading" cannot be used to check for
1023   # threading support due to a bug in Python 2.7.3
1024   # (http://bugs.python.org/issue15567).
1025   AC_MSG_CHECKING(whether python supports threads)
1026   saved_CPPFLAGS="${CPPFLAGS}"
1027   CPPFLAGS="${PYTHON_CPPFLAGS}"
1028   # Note that the test is reversed so that python_has_threads=yes on
1029   # unexpected failures.
1030   AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
1031 #include <Python.h>
1032 #ifdef WITH_THREAD
1033 # error
1034 #endif
1035   ]])], [python_has_threads=no], [python_has_threads=yes])
1036   AC_MSG_RESULT(${python_has_threads})
1037   CPPFLAGS="${saved_CPPFLAGS}"
1038 else
1039   # Even if Python support is not compiled in, we need to have this file
1040   # included so that the "python" command, et.al., still exists.
1041   CONFIG_OBS="$CONFIG_OBS python/python.o"
1042   CONFIG_SRCS="$CONFIG_SRCS python/python.c"
1043 fi
1044
1045 # Work around Python http://bugs.python.org/issue10112.  See also
1046 # http://bugs.python.org/issue11410, otherwise -Wl,--dynamic-list has
1047 # no effect.  Note that the only test after this that uses Python is
1048 # the -rdynamic/-Wl,--dynamic-list test, and we do want that one to be
1049 # run without -export-dynamic too.
1050 PYTHON_LIBS=`echo $PYTHON_LIBS | sed -e 's/-Xlinker -export-dynamic//'`
1051
1052 AC_SUBST(PYTHON_CFLAGS)
1053 AC_SUBST(PYTHON_CPPFLAGS)
1054 AC_SUBST(PYTHON_LIBS)
1055 AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
1056
1057 # -------------------- #
1058 # Check for libguile.  #
1059 # -------------------- #
1060
1061 dnl Utility to simplify finding libguile.
1062 dnl $1 = pkg-config-program
1063 dnl $2 = space-separate list of guile versions to try
1064 dnl $3 = yes|no, indicating whether to flag errors or ignore them
1065 dnl $4 = the shell variable to assign the result to
1066 dnl      If libguile is found we store "yes" here.
1067
1068 AC_DEFUN([AC_TRY_LIBGUILE],
1069 [
1070   pkg_config=$1
1071   guile_version_list=$2
1072   flag_errors=$3
1073   define([have_libguile_var],$4)
1074   found_usable_guile=checking
1075   AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1076   for guile_version in ${guile_version_list}; do
1077     ${pkg_config} --exists ${guile_version} 2>/dev/null
1078     if test $? != 0; then
1079       continue
1080     fi
1081     dnl pkg-config says the package exists, so if we get an error now,
1082     dnl that's bad.
1083     new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1084     if test $? != 0; then
1085       AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1086     fi
1087     new_LIBS=`${pkg_config} --libs ${guile_version}`
1088     if test $? != 0; then
1089       AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1090     fi
1091     dnl If we get this far, great.
1092     found_usable_guile=${guile_version}
1093     break
1094   done
1095   if test "${found_usable_guile}" = "checking"; then
1096     if test "${flag_errors}" = "yes"; then
1097       AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1098     else
1099       found_usable_guile=no
1100     fi
1101   fi
1102   dnl One final sanity check.
1103   dnl The user could have said --with-guile=python-2.7.
1104   if test "${found_usable_guile}" != no; then
1105     save_CPPFLAGS=$CPPFLAGS
1106     save_LIBS=$LIBS
1107     CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1108     LIBS="$LIBS $new_LIBS"
1109     AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include "libguile.h"]],
1110                                    [[scm_init_guile ();]])],
1111                    [have_libguile_var=yes
1112                     GUILE_CPPFLAGS=$new_CPPFLAGS
1113                     GUILE_LIBS=$new_LIBS],
1114                    [found_usable_guile=no])
1115     dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
1116     AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
1117       AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
1118                 [Define if Guile supports manual finalization.])
1119     )
1120     CPPFLAGS=$save_CPPFLAGS
1121     LIBS=$save_LIBS
1122     if test "${found_usable_guile}" = no; then
1123       if test "${flag_errors}" = yes; then
1124         AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1125       fi
1126     fi
1127   fi
1128   AC_MSG_RESULT([${found_usable_guile}])
1129 ])
1130
1131 dnl There are several different values for --with-guile:
1132 dnl
1133 dnl no -   Don't include guile support.
1134 dnl yes -  Include guile support, error if it's missing.
1135 dnl        The pkg-config program must be in $PATH.
1136 dnl auto - Same as "yes", but if guile is missing from the system,
1137 dnl        fall back to "no".
1138 dnl guile-version [guile-version-choice-2 ...] -
1139 dnl        A space-separated list of guile package versions to try.
1140 dnl        These are passed to pkg-config as-is.
1141 dnl        E.g., guile-2.0 or guile-2.2-uninstalled
1142 dnl        This requires making sure PKG_CONFIG_PATH is set appropriately.
1143 dnl /path/to/pkg-config -
1144 dnl        Use this pkg-config program.
1145 dnl        NOTE: This needn't be the "real" pkg-config program.
1146 dnl        It could be a shell script.  It is invoked as:
1147 dnl        pkg-config --exists $version
1148 dnl        pkg-config --cflags $version
1149 dnl        pkg-config --libs $version
1150 dnl        pkg-config --variable guild $version
1151 dnl        The script will be called with $version having each value in
1152 dnl        $try_guile_versions until --exists indicates success.
1153
1154 AC_ARG_WITH(guile,
1155   AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1156   [], [with_guile=auto])
1157 AC_MSG_CHECKING([whether to use guile])
1158 AC_MSG_RESULT([$with_guile])
1159
1160 dnl We check guile with pkg-config.
1161 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1162
1163 try_guile_versions="guile-2.0"
1164 have_libguile=no
1165 case "${with_guile}" in
1166 no)
1167   AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1168   ;;
1169 auto)
1170   if test "${pkg_config_prog_path}" = "missing"; then
1171     AC_MSG_WARN([pkg-config not found, guile support disabled])
1172   else
1173     AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1174   fi
1175   ;;
1176 yes)
1177   if test "${pkg_config_prog_path}" = "missing"; then
1178     AC_MSG_ERROR([pkg-config not found])
1179   fi
1180   AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1181   ;;
1182 [[\\/]]* | ?:[[\\/]]*)
1183   if test -x "${with_guile}"; then
1184     AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1185   else
1186     AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1187   fi
1188   ;;
1189 "" | */*)
1190   # Disallow --with=guile="" and --with-guile=foo/bar.
1191   AC_MSG_ERROR([invalid value for --with-guile])
1192   ;;
1193 *)
1194   # A space separate list of guile versions to try, in order.
1195   if test "${pkg_config_prog_path}" = "missing"; then
1196     AC_MSG_ERROR([pkg-config not found])
1197   fi
1198   AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1199   ;;
1200 esac
1201
1202 if test "${have_libguile}" != no; then
1203   dnl Get the name of the 'guild' program.
1204   case "${with_guile}" in
1205   [[\\/]]* | ?:[[\\/]]*)
1206     GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1207     ;;
1208   *)
1209     GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1210     ;;
1211   esac
1212
1213   dnl Make sure guild can handle this host.
1214   GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1215   dnl If not, disable guile support.
1216   if test "$ac_cv_guild_ok" = no; then
1217     have_libguile=no
1218     AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1219   fi
1220 fi
1221
1222 if test "${have_libguile}" != no; then
1223   AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1224   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1225   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1226   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1227   CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1228   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1229
1230   dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1231   save_LIBS="$LIBS"
1232   save_CPPFLAGS="$CPPFLAGS"
1233   LIBS="$GUILE_LIBS"
1234   CPPFLAGS="$GUILE_CPPFLAGS"
1235   AC_CHECK_FUNCS([scm_new_smob])
1236   LIBS="$save_LIBS"
1237   CPPFLAGS="$save_CPPFLAGS"
1238 else
1239   # Even if Guile support is not compiled in, we need to have these files
1240   # included.
1241   CONFIG_OBS="$CONFIG_OBS guile/guile.o"
1242   CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1243 fi
1244 AC_SUBST(GUILE_CPPFLAGS)
1245 AC_SUBST(GUILE_LIBS)
1246 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1247
1248 # --------------------- #
1249 # Check for libmcheck.  #
1250 # --------------------- #
1251
1252 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1253 # but turn it off if Python is enabled with threads, since -lmcheck is
1254 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1255 # and for releases.
1256 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1257    && $development; then
1258   libmcheck_default=yes
1259 else
1260   libmcheck_default=no
1261 fi
1262 GDB_AC_LIBMCHECK(${libmcheck_default})
1263
1264 if test "$ENABLE_LIBMCHECK" = "yes" \
1265         -a "${have_libpython}" != "no" \
1266         -a "${python_has_threads}" = "yes" ; then
1267   AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1268 fi
1269
1270 AC_ARG_WITH(intel_pt,
1271   AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
1272   [], [with_intel_pt=auto])
1273 AC_MSG_CHECKING([whether to use intel pt])
1274 AC_MSG_RESULT([$with_intel_pt])
1275
1276 if test "${with_intel_pt}" = no; then
1277   AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
1278   HAVE_LIBIPT=no
1279 else
1280   AC_PREPROC_IFELSE([AC_LANG_SOURCE([[
1281 #include <linux/perf_event.h>
1282 #ifndef PERF_ATTR_SIZE_VER5
1283 # error
1284 #endif
1285   ]])], [perf_event=yes], [perf_event=no])
1286   if test "$perf_event" != yes; then
1287     if test "$with_intel_pt" = yes; then
1288       AC_MSG_ERROR([linux/perf_event.h missing or too old])
1289     else
1290       AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
1291     fi
1292   fi
1293
1294   AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
1295   if test "$HAVE_LIBIPT" != yes; then
1296     if test "$with_intel_pt" = yes; then
1297       AC_MSG_ERROR([libipt is missing or unusable])
1298     else
1299       AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
1300     fi
1301   else
1302     save_LIBS=$LIBS
1303     LIBS="$LIBS $LIBIPT"
1304     AC_CHECK_FUNCS(pt_insn_event)
1305     AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
1306                      [#include <intel-pt.h>])
1307     LIBS=$save_LIBS
1308   fi
1309 fi
1310
1311 # ------------------------- #
1312 # Checks for header files.  #
1313 # ------------------------- #
1314
1315 AC_HEADER_STDC
1316 # elf_hp.h is for HP/UX 64-bit shared library support.
1317 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1318                   thread_db.h \
1319                   sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1320                   sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1321                   sys/reg.h sys/debugreg.h sys/select.h \
1322                   termios.h elf_hp.h \
1323                   dlfcn.h])
1324 AC_CHECK_HEADERS(sys/user.h, [], [],
1325 [#if HAVE_SYS_PARAM_H
1326 # include <sys/param.h>
1327 #endif
1328 ])
1329
1330 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncursesw/ncurses.h ncurses/ncurses.h ncurses/term.h)
1331 AC_CHECK_HEADERS(term.h, [], [],
1332 [#if HAVE_CURSES_H
1333 # include <curses.h>
1334 #endif
1335 ])
1336
1337 # ------------------------- #
1338 # Checks for declarations.  #
1339 # ------------------------- #
1340
1341 libiberty_INIT
1342
1343 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1344 AM_LC_MESSAGES
1345
1346 # ----------------------- #
1347 # Checks for structures.  #
1348 # ----------------------- #
1349
1350 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1351
1352 # ------------------ #
1353 # Checks for types.  #
1354 # ------------------ #
1355
1356 AC_CHECK_TYPES(socklen_t, [], [],
1357 [#include <sys/types.h>
1358 #include <sys/socket.h>
1359 ])
1360
1361 # ------------------------------------- #
1362 # Checks for compiler characteristics.  #
1363 # ------------------------------------- #
1364
1365 AC_C_CONST
1366 AC_C_INLINE
1367 AC_C_BIGENDIAN
1368
1369 # ------------------------------ #
1370 # Checks for library functions.  #
1371 # ------------------------------ #
1372
1373 AC_FUNC_MMAP
1374 AC_FUNC_VFORK
1375 AC_CHECK_FUNCS([getauxval getrusage getuid getgid \
1376                 pipe poll pread pread64 pwrite resize_term \
1377                 sbrk getpgid setpgid setpgrp setsid \
1378                 sigaction sigprocmask sigsetmask socketpair \
1379                 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1380                 setrlimit getrlimit posix_madvise waitpid \
1381                 ptrace64 sigaltstack mkdtemp setns])
1382 AM_LANGINFO_CODESET
1383 GDB_AC_COMMON
1384
1385 # Check the return and argument types of ptrace.
1386 GDB_AC_PTRACE
1387
1388 dnl AC_FUNC_SETPGRP does not work when cross compiling
1389 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1390 if test "$cross_compiling" = no; then
1391   AC_FUNC_SETPGRP
1392 else
1393   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1394     [AC_TRY_COMPILE([
1395 #include <unistd.h>
1396 ], [
1397   if (setpgrp(1,1) == -1)
1398     exit (0);
1399   else
1400     exit (1);
1401 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1402 if test $ac_cv_func_setpgrp_void = yes; then
1403   AC_DEFINE(SETPGRP_VOID, 1)
1404 fi
1405 fi
1406
1407 # Assume we'll default to using the included libiberty regex.
1408 gdb_use_included_regex=yes
1409
1410 # However, if the system regex is GNU regex, then default to *not*
1411 # using the included regex.
1412 AC_CACHE_CHECK(
1413   [for GNU regex],
1414   [gdb_cv_have_gnu_regex],
1415   [AC_TRY_COMPILE(
1416     [#include <gnu-versions.h>],
1417     [#define REGEX_INTERFACE_VERSION 1
1418 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1419 # error "Version mismatch"
1420 #endif],
1421     gdb_cv_have_gnu_regex=yes,
1422     gdb_cv_have_gnu_regex=no)])
1423 if test $gdb_cv_have_gnu_regex = yes; then
1424   gdb_use_included_regex=no
1425 fi
1426
1427 AC_ARG_WITH(included-regex,
1428   AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1429   gdb_with_regex=$withval,
1430   gdb_with_regex=$gdb_use_included_regex)
1431 if test "$gdb_with_regex" = yes; then
1432   AC_DEFINE(USE_INCLUDED_REGEX, 1,
1433     [Define to 1 if the regex included in libiberty should be used.])
1434 fi
1435
1436 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1437 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1438 [#include <sys/param.h>
1439 #include <sys/proc.h>
1440 ])
1441
1442 # See if <sys/lwp.h> defines `struct lwp`.
1443 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1444 [AC_TRY_COMPILE([#include <sys/param.h>
1445 #define _KMEMUSER
1446 #include <sys/lwp.h>], [struct lwp l;],
1447 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1448 if test $gdb_cv_struct_lwp = yes; then
1449   AC_DEFINE(HAVE_STRUCT_LWP, 1,
1450             [Define to 1 if your system has struct lwp.])
1451 fi
1452
1453 # See if <machine/reg.h> degines `struct reg'.
1454 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1455 [AC_TRY_COMPILE([#include <sys/types.h>
1456 #include <machine/reg.h>], [struct reg r;],
1457 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1458 if test $gdb_cv_struct_reg = yes; then
1459   AC_DEFINE(HAVE_STRUCT_REG, 1,
1460             [Define to 1 if your system has struct reg in <machine/reg.h>.])
1461 fi
1462
1463 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1464 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1465 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1466                  [#include <sys/types.h>
1467 #include <machine/reg.h>])
1468
1469 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1470 # Older amd64 Linux's don't have the fs_base and gs_base members of
1471 # `struct user_regs_struct'.
1472 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1473      [], [], [#include <sys/types.h>
1474 #include <sys/user.h>])
1475
1476 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1477 AC_MSG_CHECKING(for PTRACE_GETREGS)
1478 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1479 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1480                 [PTRACE_GETREGS;],
1481                 [gdb_cv_have_ptrace_getregs=yes],
1482                 [gdb_cv_have_ptrace_getregs=no])])
1483 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1484 if test $gdb_cv_have_ptrace_getregs = yes; then
1485   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1486   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1487 fi
1488
1489 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1490 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1491 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1492 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1493                 [PTRACE_GETFPXREGS;],
1494                 [gdb_cv_have_ptrace_getfpxregs=yes],
1495                 [gdb_cv_have_ptrace_getfpxregs=no])])
1496 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1497 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1498   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1499   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1500 fi
1501
1502 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1503 AC_MSG_CHECKING(for PT_GETDBREGS)
1504 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1505 [AC_TRY_COMPILE([#include <sys/types.h>
1506 #include <sys/ptrace.h>],
1507                 [PT_GETDBREGS;],
1508                 [gdb_cv_have_pt_getdbregs=yes],
1509                 [gdb_cv_have_pt_getdbregs=no])])
1510 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1511 if test $gdb_cv_have_pt_getdbregs = yes; then
1512   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1513   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1514 fi
1515
1516 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1517 AC_MSG_CHECKING(for PT_GETXMMREGS)
1518 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1519 [AC_TRY_COMPILE([#include <sys/types.h>
1520 #include <sys/ptrace.h>],
1521                 [PT_GETXMMREGS;],
1522                 [gdb_cv_have_pt_getxmmregs=yes],
1523                 [gdb_cv_have_pt_getxmmregs=no])])
1524 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1525 if test $gdb_cv_have_pt_getxmmregs = yes; then
1526   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1527   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1528 fi
1529
1530 # See if <sys/ptrace.h> supports LWP names on FreeBSD
1531 # Older FreeBSD versions don't have the pl_tdname member of
1532 # `struct ptrace_lwpinfo'.
1533 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
1534                  [#include <sys/ptrace.h>])
1535
1536 # See if <sys/ptrace.h> supports syscall fields on FreeBSD.  The
1537 # pl_syscall_code member of `struct ptrace_lwpinfo' was added in
1538 # FreeBSD 10.3.
1539 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_syscall_code], [], [],
1540                  [#include <sys/ptrace.h>])
1541
1542 if test "$ac_cv_header_sys_procfs_h" = yes; then
1543   BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1544   BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1545   BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1546   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1547   BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1548   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1549   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1550
1551   dnl Check for broken prfpregset_t type
1552
1553   dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1554   dnl prfpregset_t type (it's a typedef for the pointer to a struct
1555   dnl instead of the struct itself).  We detect this here, and work
1556   dnl around it in gdb_proc_service.h.
1557
1558   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1559     AC_MSG_CHECKING(whether prfpregset_t type is broken)
1560     AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1561       [AC_TRY_RUN([#include <sys/procfs.h>
1562        int main ()
1563        {
1564          if (sizeof (prfpregset_t) == sizeof (void *))
1565            return 1;
1566          return 0;
1567        }],
1568        gdb_cv_prfpregset_t_broken=no,
1569        gdb_cv_prfpregset_t_broken=yes,
1570        gdb_cv_prfpregset_t_broken=yes)])
1571     AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1572     if test $gdb_cv_prfpregset_t_broken = yes; then
1573       AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1574       [Define if the prfpregset_t type is broken.])
1575     fi
1576   fi
1577 fi
1578
1579 # Check if the compiler supports the `long long' type.
1580
1581 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1582                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1583 [[extern long long foo;]],
1584 [[switch (foo & 2) { case 0: return 1; }]])],
1585                                   gdb_cv_c_long_long=yes,
1586                                   gdb_cv_c_long_long=no)])
1587 if test $gdb_cv_c_long_long != yes; then
1588   # libdecnumber requires long long.
1589   AC_MSG_ERROR([Compiler must support long long for GDB.])
1590 fi
1591
1592 # Check if the compiler and runtime support printing long longs.
1593
1594 AC_CACHE_CHECK([for long long support in printf],
1595                gdb_cv_printf_has_long_long,
1596                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1597 [[char buf[32];
1598   long long l = 0;
1599   l = (l << 16) + 0x0123;
1600   l = (l << 16) + 0x4567;
1601   l = (l << 16) + 0x89ab;
1602   l = (l << 16) + 0xcdef;
1603   sprintf (buf, "0x%016llx", l);
1604   return (strcmp ("0x0123456789abcdef", buf));]])],
1605                               gdb_cv_printf_has_long_long=yes,
1606                               gdb_cv_printf_has_long_long=no,
1607                               gdb_cv_printf_has_long_long=no)])
1608 if test $gdb_cv_printf_has_long_long = yes; then
1609   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1610             [Define to 1 if the "%ll" format works to print long longs.])
1611 fi
1612
1613 # Check if the compiler and runtime support printing decfloats.
1614
1615 AC_CACHE_CHECK([for decfloat support in printf],
1616                gdb_cv_printf_has_decfloat,
1617                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1618 [[char buf[64];
1619   _Decimal32 d32 = 1.2345df;
1620   _Decimal64 d64 = 1.2345dd;
1621   _Decimal128 d128 = 1.2345dl;
1622   sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1623   return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1624                               gdb_cv_printf_has_decfloat=yes,
1625                               gdb_cv_printf_has_decfloat=no,
1626                               gdb_cv_printf_has_decfloat=no)])
1627 if test $gdb_cv_printf_has_decfloat = yes; then
1628   AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1629             [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1630 fi
1631
1632 # Check if the compiler supports the `long double' type.  We can't use
1633 # AC_C_LONG_DOUBLE because that one does additional checks on the
1634 # constants defined in <float.h> that fail on some systems,
1635 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1636
1637 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1638                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1639                                   gdb_cv_c_long_double=yes,
1640                                   gdb_cv_c_long_double=no)])
1641 if test $gdb_cv_c_long_double = yes; then
1642   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1643            [Define to 1 if the compiler supports long double.])
1644 fi
1645
1646 # Check if the compiler and runtime support printing long doubles.
1647
1648 AC_CACHE_CHECK([for long double support in printf],
1649                gdb_cv_printf_has_long_double,
1650                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1651 [[char buf[16];
1652   long double f = 3.141592653;
1653   sprintf (buf, "%Lg", f);
1654   return (strncmp ("3.14159", buf, 7));]])],
1655                               gdb_cv_printf_has_long_double=yes,
1656                               gdb_cv_printf_has_long_double=no,
1657                               gdb_cv_printf_has_long_double=no)])
1658 if test $gdb_cv_printf_has_long_double = yes; then
1659   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1660             [Define to 1 if the "%Lg" format works to print long doubles.])
1661 fi
1662
1663 # Check if the compiler and runtime support scanning long doubles.
1664
1665 AC_CACHE_CHECK([for long double support in scanf],
1666                gdb_cv_scanf_has_long_double,
1667                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1668 [[#include <stdio.h>]],
1669 [[char *buf = "3.141592653";
1670   long double f = 0;
1671   sscanf (buf, "%Lg", &f);
1672   return !(f > 3.14159 && f < 3.14160);]])],
1673                               gdb_cv_scanf_has_long_double=yes,
1674                               gdb_cv_scanf_has_long_double=no,
1675                               gdb_cv_scanf_has_long_double=no)])
1676 if test $gdb_cv_scanf_has_long_double = yes; then
1677   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1678             [Define to 1 if the "%Lg" format works to scan long doubles.])
1679 fi
1680
1681 case ${host_os} in
1682 aix*)
1683   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1684     SAVE_LDFLAGS=$LDFLAGS
1685
1686     case $GCC in
1687     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1688     *) gdb_cv_bigtoc=-bbigtoc ;;
1689     esac
1690
1691     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1692     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1693     LDFLAGS="${SAVE_LDFLAGS}"
1694   ])
1695   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1696   ;;
1697 esac
1698
1699 AC_MSG_CHECKING(for the dynamic export flag)
1700 dynamic_list=false
1701 if test "${gdb_native}" = yes; then
1702    # The dynamically loaded libthread_db needs access to symbols in the gdb
1703    # executable.  Older GNU ld supports --export-dynamic but --dynamic-list
1704    # may not be supported there.
1705    old_LDFLAGS="$LDFLAGS"
1706    # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1707    RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1708    LDFLAGS="$LDFLAGS $RDYNAMIC"
1709    if test "${have_libpython}" = no; then
1710      AC_TRY_LINK([], [], [dynamic_list=true])
1711    else
1712      # Workaround http://bugs.python.org/issue4434 where static
1713      # libpythonX.Y.a would get its symbols required for
1714      # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1715      # Problem does not happen for the recommended libpythonX.Y.so linkage.
1716
1717      # Note the workaround for Python
1718      # http://bugs.python.org/issue10112 earlier has removed
1719      # -export-dynamic from PYTHON_LIBS.  That's exactly what we want
1720      # here too, as otherwise it'd make this -Wl,--dynamic-list test
1721      # always pass.
1722      old_CFLAGS="$CFLAGS"
1723      CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1724      old_LIBS="$LIBS"
1725      LIBS="$LIBS $PYTHON_LIBS"
1726      old_CPPFLAGS="$CPPFLAGS"
1727      CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
1728      AC_RUN_IFELSE(
1729        [AC_LANG_PROGRAM(
1730          [#include "Python.h"],
1731          [int err;
1732           Py_Initialize ();
1733           err = PyRun_SimpleString ("import itertools\n");
1734           Py_Finalize ();
1735           return err == 0 ? 0 : 1;])],
1736        [dynamic_list=true], [], [true])
1737      LIBS="$old_LIBS"
1738      CFLAGS="$old_CFLAGS"
1739      CPPFLAGS="$old_CPPFLAGS"
1740    fi
1741    LDFLAGS="$old_LDFLAGS"
1742 fi
1743 if $dynamic_list; then
1744   found="-Wl,--dynamic-list"
1745   RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1746 else
1747   found="-rdynamic"
1748   RDYNAMIC="-rdynamic"
1749 fi
1750 AC_SUBST(RDYNAMIC)
1751 AC_MSG_RESULT($found)
1752
1753 dnl For certain native configurations, we need to check whether thread
1754 dnl support can be built in or not.
1755 dnl
1756 dnl Note that we only want this if we are both native (host == target),
1757 dnl and not doing a canadian cross build (build == host).
1758
1759 if test ${build} = ${host} -a ${host} = ${target} ; then
1760    case ${host_os} in
1761    aix*)
1762       AC_MSG_CHECKING(for AiX thread debugging library)
1763       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1764                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1765                                    [#ifndef PTHDB_VERSION_3
1766                                     #error
1767                                     #endif],
1768                                    gdb_cv_have_aix_thread_debug=yes,
1769                                    gdb_cv_have_aix_thread_debug=no)])
1770       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1771       if test $gdb_cv_have_aix_thread_debug = yes; then
1772          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1773          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1774          LIBS="$LIBS -lpthdebug"
1775
1776          # Older versions of AIX do not provide the declaration for
1777          # the getthrds function (it appears that it was introduced
1778          # with AIX 6.x).
1779          AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1780       fi
1781       ;;
1782    esac
1783    AC_SUBST(CONFIG_LDFLAGS)
1784 fi
1785
1786 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1787 dnl other error codes.
1788 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1789    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1790                   gdb_cv_thread_db_h_has_td_notalloc,
1791      AC_TRY_COMPILE(
1792        [#include <thread_db.h>],
1793        [int i = TD_NOTALLOC;],
1794        gdb_cv_thread_db_h_has_td_notalloc=yes,
1795        gdb_cv_thread_db_h_has_td_notalloc=no
1796      )
1797    )
1798    AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1799                   gdb_cv_thread_db_h_has_td_version,
1800      AC_TRY_COMPILE(
1801        [#include <thread_db.h>],
1802        [int i = TD_VERSION;],
1803        gdb_cv_thread_db_h_has_td_version=yes,
1804        gdb_cv_thread_db_h_has_td_version=no
1805      )
1806    )
1807    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1808                   gdb_cv_thread_db_h_has_td_notls,
1809      AC_TRY_COMPILE(
1810        [#include <thread_db.h>],
1811        [int i = TD_NOTLS;],
1812        gdb_cv_thread_db_h_has_td_notls=yes,
1813        gdb_cv_thread_db_h_has_td_notls=no
1814      )
1815    )
1816 fi
1817 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1818   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1819             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1820 fi
1821 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1822   AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1823             [Define if <thread_db.h> has the TD_VERSION error code.])
1824 fi
1825 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1826   AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1827             [Define if <thread_db.h> has the TD_NOTLS error code.])
1828 fi
1829
1830 dnl Check if we can disable the virtual address space randomization.
1831 dnl The functionality of setarch -R.
1832 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1833 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1834 #      if !HAVE_DECL_ADDR_NO_RANDOMIZE
1835 #       define ADDR_NO_RANDOMIZE 0x0040000
1836 #      endif
1837        /* Test the flag could be set and stays set.  */
1838        personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1839        if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1840            return 1])])
1841 AC_RUN_IFELSE([PERSONALITY_TEST],
1842               [have_personality=true],
1843               [have_personality=false],
1844               [AC_LINK_IFELSE([PERSONALITY_TEST],
1845                               [have_personality=true],
1846                               [have_personality=false])])
1847 if $have_personality
1848 then
1849     AC_DEFINE([HAVE_PERSONALITY], 1,
1850               [Define if you support the personality syscall.])
1851 fi
1852
1853 dnl Set the host's .gdbinit filename.
1854 case $host_os in
1855   go32* | *djgpp*)
1856     gdbinit=gdb.ini
1857     ;;
1858   *)
1859     gdbinit=.gdbinit
1860     ;;
1861 esac
1862 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1863
1864 dnl Handle optional features that can be enabled.
1865
1866 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1867 # except that the argument to --with-sysroot is optional.
1868 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1869 if test "x$with_sysroot" = xyes; then
1870   with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1871 fi
1872 AC_ARG_WITH(sysroot,
1873   AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1874                  [search for usr/lib et al within DIR]),
1875   [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1876 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1877               [search for usr/lib et al within DIR])
1878 AC_SUBST(TARGET_SYSTEM_ROOT)
1879 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1880
1881 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1882     [automatically load a system-wide gdbinit file],
1883     [])
1884
1885 AM_GDB_WARNINGS
1886
1887 # In the Cygwin environment, we need some additional flags.
1888 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1889 [AC_EGREP_CPP(^lose$, [
1890 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1891 lose
1892 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1893
1894
1895 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1896 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1897 case ${host} in
1898   *go32* ) SER_HARDWIRE=ser-go32.o ;;
1899   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1900   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1901 esac
1902 AC_SUBST(SER_HARDWIRE)
1903
1904 # libreadline needs libuser32.a in a cygwin environment
1905 WIN32LIBS=
1906 if test x$gdb_cv_os_cygwin = xyes; then
1907     WIN32LIBS="-luser32"
1908     case "${target}" in
1909         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1910         ;;
1911     esac
1912 fi
1913
1914 # The ser-tcp.c module requires sockets.
1915 case ${host} in
1916   *mingw32*)
1917     AC_DEFINE(USE_WIN32API, 1,
1918               [Define if we should use the Windows API, instead of the
1919                POSIX API.  On Windows, we use the Windows API when
1920                building for MinGW, but the POSIX API when building
1921                for Cygwin.])
1922     WIN32LIBS="$WIN32LIBS -lws2_32"
1923     ;;
1924 esac
1925 AC_SUBST(WIN32LIBS)
1926
1927 # Add ELF support to GDB, but only if BFD includes ELF support.
1928 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1929                  [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1930 if test $gdb_cv_var_elf = yes; then
1931   CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
1932   AC_DEFINE(HAVE_ELF, 1,
1933             [Define if ELF support should be included.])
1934   # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1935   if test "$plugins" = "yes"; then
1936     AC_SEARCH_LIBS(dlopen, dl)
1937   fi
1938 fi
1939
1940 # Add macho support to GDB, but only if BFD includes it.
1941 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1942                  [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1943 if test $gdb_cv_var_macho = yes; then
1944   CONFIG_OBS="$CONFIG_OBS machoread.o"
1945 fi
1946
1947 # Add any host-specific objects to GDB.
1948 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1949
1950 # If building on ELF, look for lzma support for embedded compressed debug info.
1951 if test $gdb_cv_var_elf = yes; then
1952   AC_ARG_WITH(lzma,
1953     AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1954     [], [with_lzma=auto])
1955   AC_MSG_CHECKING([whether to use lzma])
1956   AC_MSG_RESULT([$with_lzma])
1957
1958   if test "${with_lzma}" != no; then
1959     AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1960                           [lzma_index_iter iter;
1961                            lzma_index_iter_init (&iter, 0);
1962                            lzma_mf_is_supported (LZMA_MF_HC3);])
1963     if test "$HAVE_LIBLZMA" != yes; then
1964       if test "$with_lzma" = yes; then
1965         AC_MSG_ERROR([missing liblzma for --with-lzma])
1966       fi
1967     fi
1968   fi
1969 fi
1970
1971 LIBGUI="../libgui/src/libgui.a"
1972 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1973 AC_SUBST(LIBGUI)
1974 AC_SUBST(GUI_CFLAGS_X)
1975
1976 WIN32LDAPP=
1977 AC_SUBST(WIN32LIBS)
1978 AC_SUBST(WIN32LDAPP)
1979
1980 case "${host}" in
1981 *-*-cygwin* | *-*-mingw* )
1982     configdir="win"
1983     ;;
1984 *)
1985     configdir="unix"
1986     ;;
1987 esac
1988
1989 GDBTKLIBS=
1990 if test "${enable_gdbtk}" = "yes"; then
1991
1992     # Gdbtk must have an absolute path to srcdir in order to run
1993     # properly when not installed.
1994     here=`pwd`
1995     cd ${srcdir}
1996     GDBTK_SRC_DIR=`pwd`
1997     cd $here
1998
1999     SC_PATH_TCLCONFIG
2000
2001     # If $no_tk is nonempty, then we can't do Tk, and there is no
2002     # point to doing Tcl.
2003     SC_PATH_TKCONFIG
2004
2005     if test -z "${no_tcl}" -a -z "${no_tk}"; then
2006         SC_LOAD_TCLCONFIG
2007
2008         # Check for in-tree tcl
2009         here=`pwd`
2010         cd ${srcdir}/..
2011         topdir=`pwd`
2012         cd ${here}
2013
2014         intree="no"
2015         if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2016           intree="yes"
2017         fi
2018
2019         # Find Tcl private headers
2020         if test x"${intree}" = xno; then
2021           CY_AC_TCL_PRIVATE_HEADERS
2022           TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2023           TCL_LIBRARY="${TCL_LIB_SPEC}"
2024           TCL_DEPS=""
2025         else
2026           # If building tcl in the same src tree, private headers
2027           # are not needed, but we need to be sure to use the right
2028           # headers library
2029           TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2030           TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2031           TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2032         fi
2033         AC_SUBST(TCL_INCLUDE)
2034         AC_SUBST(TCL_LIBRARY)
2035         AC_SUBST(TCL_DEPS)
2036
2037         SC_LOAD_TKCONFIG
2038
2039         # Check for in-tree Tk
2040         intree="no"
2041         if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2042           intree="yes"
2043         fi
2044
2045         # Find Tk private headers
2046         if test x"${intree}" = xno; then
2047           CY_AC_TK_PRIVATE_HEADERS
2048           TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2049           TK_LIBRARY=${TK_LIB_SPEC}
2050           TK_DEPS=""
2051         else
2052           TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2053           TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2054           TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2055         fi
2056         AC_SUBST(TK_INCLUDE)
2057         AC_SUBST(TK_LIBRARY)
2058         AC_SUBST(TK_DEPS)
2059         AC_SUBST(TK_XINCLUDES)
2060
2061         ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2062
2063         # Include some libraries that Tcl and Tk want.
2064         TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2065         # Yes, the ordering seems wrong here.  But it isn't.
2066         # TK_LIBS is the list of libraries that need to be linked
2067         # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
2068         # were in LIBS then any link tests after this point would
2069         # try to include things like `$(LIBGUI)', which wouldn't work.
2070         GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2071
2072         CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2073         CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2074         CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2075         CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2076         CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2077         CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2078         CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2079
2080         if test x$gdb_cv_os_cygwin = xyes; then
2081           WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2082           WIN32LDAPP="-Wl,--subsystem,console"
2083           CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2084         fi
2085
2086         AC_CONFIG_SUBDIRS(gdbtk)
2087     fi
2088 fi
2089
2090 AC_SUBST(X_CFLAGS)
2091 AC_SUBST(X_LDFLAGS)
2092 AC_SUBST(X_LIBS)
2093 AC_SUBST(GDBTKLIBS)
2094 AC_SUBST(GDBTK_CFLAGS)
2095 AC_SUBST(GDBTK_SRC_DIR)
2096
2097 AC_PATH_X
2098
2099 # Unlike the sim directory, whether a simulator is linked is controlled by
2100 # presence of a gdb_sim definition in the target configure.tgt entry.
2101 # This code just checks for a few cases where we'd like to ignore those
2102 # definitions, even when they're present in the '.mt' file.  These cases
2103 # are when --disable-sim is specified, or if the simulator directory is
2104 # not part of the source tree.
2105 #
2106 AC_ARG_ENABLE(sim,
2107 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2108 [echo "enable_sim = $enable_sim";
2109  echo "enableval = ${enableval}";
2110  case "${enableval}" in
2111   yes) ignore_sim=false ;;
2112   no)  ignore_sim=true ;;
2113   *)   ignore_sim=false ;;
2114  esac],
2115 [ignore_sim=false])
2116
2117 if test ! -d "${srcdir}/../sim"; then
2118   ignore_sim=true
2119 fi
2120
2121 SIM=
2122 SIM_OBS=
2123 if test "${ignore_sim}" = "false"; then
2124   if test x"${gdb_sim}" != x ; then
2125     SIM="${gdb_sim}"
2126     SIM_OBS="remote-sim.o"
2127     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2128
2129     # Some tdep code should only be compiled in when the ppc sim is
2130     # built.  PR sim/13418.
2131     case $target in
2132       powerpc*-*-*)
2133         AC_DEFINE(WITH_PPC_SIM, 1, [Define if the PPC simulator is being linked in.])
2134         ;;
2135     esac
2136   fi
2137 fi
2138 AC_SUBST(SIM)
2139 AC_SUBST(SIM_OBS)
2140
2141 AC_SUBST(ENABLE_CFLAGS)
2142 AC_SUBST(PROFILE_CFLAGS)
2143
2144 AC_SUBST(CONFIG_OBS)
2145 AC_SUBST(CONFIG_DEPS)
2146 AC_SUBST(CONFIG_SRCS)
2147 AC_SUBST(CONFIG_ALL)
2148 AC_SUBST(CONFIG_CLEAN)
2149 AC_SUBST(CONFIG_INSTALL)
2150 AC_SUBST(CONFIG_UNINSTALL)
2151
2152 # List of host floatformats.
2153 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2154 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2155 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2156
2157 # target_subdir is used by the testsuite to find the target libraries.
2158 target_subdir=
2159 if test "${host}" != "${target}"; then
2160     target_subdir="${target_alias}/"
2161 fi
2162 AC_SUBST(target_subdir)
2163
2164 # Import nat definitions.
2165 nat_makefile_frag=/dev/null
2166 if test "${gdb_native}" = "yes"; then
2167   . ${srcdir}/configure.nat
2168   nativefile=$NAT_FILE
2169 fi
2170
2171 AC_SUBST(NAT_FILE)
2172 AC_SUBST(NATDEPFILES)
2173 AC_SUBST(NAT_CDEPS)
2174 AC_SUBST(LOADLIBES)
2175 AC_SUBST(MH_CFLAGS)
2176 AC_SUBST(XM_CLIBS)
2177 AC_SUBST(NAT_GENERATED_FILES)
2178 AC_SUBST(HAVE_NATIVE_GCORE_HOST)
2179 AC_SUBST_FILE(nat_makefile_frag)
2180
2181 if test x"${gdb_osabi}" != x ; then
2182     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2183                        [Define to the default OS ABI for this configuration.])
2184 fi
2185
2186 # Enable multi-ice-gdb-server.
2187 AC_ARG_ENABLE(multi-ice,
2188 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2189   [case $enableval in
2190     yes | no)
2191       ;;
2192     *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2193   esac])
2194 if test "x$enable_multi_ice" = xyes; then
2195    AC_CONFIG_SUBDIRS(multi-ice)
2196 fi
2197
2198 AC_ARG_ENABLE(gdbserver,
2199 AS_HELP_STRING([--enable-gdbserver],
2200                [automatically build gdbserver (yes/no/auto, default is auto)]),
2201 [case "${enableval}" in
2202   yes| no|auto) ;;
2203   *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2204 esac],[enable_gdbserver=auto])
2205
2206 # We only build gdbserver automatically in a native configuration, and
2207 # only if the user did not explicitly disable its build.
2208 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2209   AC_MSG_CHECKING(whether gdbserver is supported on this host)
2210   if test "x$build_gdbserver" = xyes; then
2211     AC_MSG_RESULT(yes)
2212     AC_CONFIG_SUBDIRS(gdbserver)
2213     gdbserver_build_enabled=yes
2214   else
2215     AC_MSG_RESULT(no)
2216   fi
2217 fi
2218
2219 # If the user explicitly request the gdbserver to be built, verify that
2220 # we were in fact able to enable it.
2221 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2222   AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2223 fi
2224
2225 # Check for babeltrace and babeltrace-ctf
2226 AC_ARG_WITH(babeltrace,
2227   AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2228   [], [with_babeltrace=auto])
2229 AC_MSG_CHECKING([whether to use babeltrace])
2230 AC_MSG_RESULT([$with_babeltrace])
2231
2232 if test "x$with_babeltrace" = "xno"; then
2233   AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2234 else
2235   # Append -Werror to CFLAGS so that configure can catch the warning
2236   # "assignment from incompatible pointer type", which is related to
2237   # the babeltrace change from 1.0.3 to 1.1.0.  Babeltrace 1.1.0 works
2238   # in GDB, while babeltrace 1.0.3 is broken.
2239   # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2240   # safe to save and restore CFLAGS here.
2241   saved_CFLAGS=$CFLAGS
2242   CFLAGS="$CFLAGS -Werror"
2243   AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2244                         [#include <babeltrace/babeltrace.h>
2245                          #include <babeltrace/ctf/events.h>
2246                          #include <babeltrace/ctf/iterator.h>],
2247                         [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2248                         struct bt_ctf_event *event = NULL;
2249                         const struct bt_definition *scope;
2250
2251                         pos->type = BT_SEEK_BEGIN;
2252                         bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2253                         scope = bt_ctf_get_top_level_scope (event,
2254                                                            BT_STREAM_EVENT_HEADER);
2255                         bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2256                         ])
2257   CFLAGS=$saved_CFLAGS
2258
2259   if test "$HAVE_LIBBABELTRACE" != yes; then
2260      if test "$with_babeltrace" = yes; then
2261        AC_MSG_ERROR([babeltrace is missing or unusable])
2262      else
2263        AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2264      fi
2265   fi
2266 fi
2267
2268 # If nativefile (NAT_FILE) is not set in configure.nat, we link to an
2269 # empty version.
2270
2271 files=
2272 links=
2273
2274 rm -f nm.h
2275 if test "${nativefile}" != ""; then
2276     case "${nativefile}" in
2277       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2278       * ) GDB_NM_FILE="${nativefile}"
2279     esac
2280     files="${files} ${GDB_NM_FILE}"
2281     links="${links} nm.h"
2282     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2283 fi
2284 AC_SUBST(GDB_NM_FILE)
2285
2286 dnl Add dependency for xsltproc if building with maintainer-mode enabled.
2287 AC_PATH_PROGS(XSLTPROC, xsltproc, missing)
2288 if test "x$USE_MAINTAINER_MODE" = xyes; then
2289   if test "${XSLTPROC}" = missing; then
2290     AC_ERROR(unable to find xsltproc.  maintainer-mode requires xsltproc.)
2291   fi
2292 fi
2293 AC_SUBST(XSLTPROC)
2294
2295 AC_LINK_FILES($files, $links)
2296
2297 dnl Check for exe extension set on certain hosts (e.g. Win32)
2298 AC_EXEEXT
2299
2300 dnl  Detect the character set used by this host.
2301 dnl  At the moment, we just assume it's UTF-8.
2302 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2303           [Define to be a string naming the default host character set.])
2304
2305 if $development; then
2306   AC_DEFINE(GDB_SELF_TEST, 1,
2307             [Define if self-testing features should be enabled])
2308   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_UNITTESTS_OBS) common/selftest.o selftest-arch.o"
2309   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_UNITTESTS_SRCS) common/selftest.c selftest-arch.c"
2310 fi
2311
2312 GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
2313 GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
2314 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2315 AC_CONFIG_FILES([Makefile gdb-gdb.gdb gdb-gdb.py doc/Makefile data-directory/Makefile],
2316 [
2317 case x$CONFIG_HEADERS in
2318 xconfig.h:config.in)
2319 echo > stamp-h ;;
2320 esac
2321 ])
2322
2323 AC_OUTPUT