gdb/configure.ac

   1 dnl Autoconf configure script for GDB, the GNU debugger.
   2 dnl Copyright (C) 1995-2017 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_PREREQ(2.59)dnl
  22 AC_INIT(main.c)
  23 AC_CONFIG_HEADER(config.h:config.in)
  24 AM_MAINTAINER_MODE
  25
  26 # Set the 'development' global.
  27 . $srcdir/../bfd/development.sh
  28
  29 AC_PROG_CC
  30 AC_PROG_CXX
  31
  32 AC_USE_SYSTEM_EXTENSIONS
  33 ACX_LARGEFILE
  34 AM_PROG_CC_STDC
  35 AM_PROG_INSTALL_STRIP
  36
  37 AC_CONFIG_AUX_DIR(..)
  38 AC_CANONICAL_SYSTEM
  39 AC_ARG_PROGRAM
  40
  41 # We require a C++11 compiler.  Check if one is available, and if
  42 # necessary, set CXX_DIALECT to some -std=xxx switch.
  43 AX_CXX_COMPILE_STDCXX(11, , mandatory)
  44
  45 # Dependency checking.
  46 ZW_CREATE_DEPDIR
  47 # Create sub-directories for objects and dependencies.
  48 CONFIG_SRC_SUBDIR="arch"
  49 AC_SUBST(CONFIG_SRC_SUBDIR)
  50
  51 AC_CONFIG_COMMANDS([gdbdepdir],[
  52   for subdir in ${CONFIG_SRC_SUBDIR}
  53   do
  54       $SHELL $ac_aux_dir/mkinstalldirs $subdir/$DEPDIR
  55   done],
  56   [ac_aux_dir=$ac_aux_dir DEPDIR=$DEPDIR CONFIG_SRC_SUBDIR="$CONFIG_SRC_SUBDIR"])
  57
  58 ZW_PROG_COMPILER_DEPENDENCIES([CC])
  59
  60 gnulib_extra_configure_args=
  61 # If large-file support is disabled, make sure gnulib does the same.
  62 if test "$enable_largefile" = no; then
  63 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
  64 fi
  65
  66 # Configure gnulib.  We need to build gnulib under some other
  67 # directory not "gnulib", to avoid the problem of both GDB and
  68 # GDBserver wanting to build it in the same directory, when building
  69 # in the source dir.
  70 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"],
  71                   ["$gnulib_extra_configure_args"])
  72
  73 dnl List of object files and targets accumulated by configure.
  74
  75 CONFIG_OBS=
  76 CONFIG_DEPS=
  77 CONFIG_SRCS=
  78 ENABLE_CFLAGS=
  79
  80 CONFIG_ALL=
  81 CONFIG_CLEAN=
  82 CONFIG_INSTALL=
  83 CONFIG_UNINSTALL=
  84
  85 dnl Set up for gettext.
  86 ZW_GNU_GETTEXT_SISTER_DIR
  87
  88 localedir='${datadir}/locale'
  89 AC_SUBST(localedir)
  90
  91 if test x"$USE_NLS" = xyes; then
  92    CONFIG_ALL="$CONFIG_ALL all-po"
  93    CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
  94    CONFIG_INSTALL="$CONFIG_INSTALL install-po"
  95    CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
  96 fi
  97
  98 GNULIB=build-gnulib/import
  99
 100 # For Makefile dependencies.
 101 GNULIB_STDINT_H=
 102 if test x"$STDINT_H" != x; then
 103   GNULIB_STDINT_H=$GNULIB/$STDINT_H
 104 fi
 105 AC_SUBST(GNULIB_STDINT_H)
 106
 107 PACKAGE=gdb
 108 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
 109 AC_SUBST(PACKAGE)
 110
 111 # We never need to detect it in this sub-configure.
 112 # But preserve it for config.status --recheck.
 113 AC_ARG_VAR(MAKEINFO,
 114   [Parent configure detects if it is of sufficient version.])
 115 AC_ARG_VAR(MAKEINFOFLAGS,
 116   [Parameters for MAKEINFO.])
 117
 118 MAKEINFO_EXTRA_FLAGS=""
 119 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
 120   [echo '@clicksequence{a @click{} b}' >conftest.texinfo
 121   if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
 122     gdb_cv_have_makeinfo_click=yes
 123   else
 124     gdb_cv_have_makeinfo_click=no
 125   fi])
 126 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
 127   MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
 128 fi
 129 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
 130
 131 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
 132     [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
 133     [${libdir}/debug])
 134
 135 # We can't pass paths as command line arguments.
 136 # Mingw32 tries to be clever and will convert the paths for us.
 137 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
 138 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
 139 # This breaks GDB's relocatable path conversions since paths passed in
 140 # config.h would not get so translated, the path prefixes no longer match.
 141 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
 142
 143 # GDB's datadir relocation
 144
 145 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
 146     [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
 147     [${datadir}/gdb])
 148
 149 AC_ARG_WITH(relocated-sources,
 150 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
 151 [reloc_srcdir="${withval}"
 152  AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
 153               [Relocated directory for source files. ])
 154 ])
 155
 156 AC_MSG_CHECKING([for default auto-load directory])
 157 AC_ARG_WITH(auto-load-dir,
 158 AS_HELP_STRING([--with-auto-load-dir=PATH],
 159   [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
 160   [with_auto_load_dir='$debugdir:$datadir/auto-load'])
 161 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
 162 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
 163               [Directories from which to load auto-loaded scripts.])
 164 AC_MSG_RESULT([$with_auto_load_dir])
 165
 166 AC_MSG_CHECKING([for default auto-load safe-path])
 167 AC_ARG_WITH(auto-load-safe-path,
 168 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
 169   [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
 170 AS_HELP_STRING([--without-auto-load-safe-path],
 171                [do not restrict auto-loaded files locations]),
 172     [if test "$with_auto_load_safe_path" = "no"; then
 173      with_auto_load_safe_path="/"
 174      fi],
 175 [with_auto_load_safe_path="$with_auto_load_dir"])
 176 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
 177 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
 178               [Directories safe to hold auto-loaded files.])
 179 AC_MSG_RESULT([$with_auto_load_safe_path])
 180
 181 AC_CONFIG_SUBDIRS(testsuite)
 182
 183 # Check whether to support alternative target configurations
 184 AC_ARG_ENABLE(targets,
 185 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
 186 [case "${enableval}" in
 187   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
 188             ;;
 189   no)       enable_targets= ;;
 190   *)        enable_targets=$enableval ;;
 191 esac])
 192
 193 # Check whether to enable 64-bit support on 32-bit hosts
 194 AC_ARG_ENABLE(64-bit-bfd,
 195 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
 196 [case "${enableval}" in
 197   yes)  want64=true  ;;
 198   no)   want64=false ;;
 199   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
 200 esac],[want64=false])dnl
 201
 202 # Provide defaults for some variables set by the per-host and per-target
 203 # configuration.
 204 gdb_host_obs=posix-hdep.o
 205
 206 if test "${target}" = "${host}"; then
 207   gdb_native=yes
 208 else
 209   gdb_native=no
 210 fi
 211
 212 . $srcdir/configure.host
 213
 214 # Add in the common host objects.
 215 . $srcdir/common/common.host
 216 gdb_host_obs="$gdb_host_obs $common_host_obs"
 217
 218 # Accumulate some settings from configure.tgt over all enabled targets
 219
 220 TARGET_OBS=
 221 all_targets=
 222 HAVE_NATIVE_GCORE_TARGET=
 223
 224 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 225 do
 226   if test "$targ_alias" = "all"; then
 227     all_targets=true
 228   else
 229     # Canonicalize the secondary target names.
 230     result=`$ac_config_sub $targ_alias 2>/dev/null`
 231     if test -n "$result"; then
 232         targ=$result
 233     else
 234         targ=$targ_alias
 235     fi
 236
 237     . ${srcdir}/configure.tgt
 238
 239     AS_IF([test -z "${gdb_target_obs}"],
 240       [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
 241
 242     # Target-specific object files
 243     for i in ${gdb_target_obs}; do
 244         case " $TARGET_OBS " in
 245         *" ${i} "*) ;;
 246         *)
 247           TARGET_OBS="$TARGET_OBS ${i}"
 248           ;;
 249         esac
 250     done
 251
 252     # Check whether this target needs 64-bit CORE_ADDR
 253     if test x${want64} = xfalse; then
 254       . ${srcdir}/../bfd/config.bfd
 255     fi
 256
 257     # Check whether this target is native and supports gcore.
 258     if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
 259        && $gdb_have_gcore; then
 260       HAVE_NATIVE_GCORE_TARGET=1
 261     fi
 262   fi
 263 done
 264
 265 if test x${all_targets} = xtrue; then
 266
 267   # We want all 64-bit targets if we either:
 268   #  - run on a 64-bit host  or
 269   #  - already require 64-bit support for some other target  or
 270   #  - the --enable-64-bit-bfd option was supplied
 271   # Otherwise we only support all 32-bit targets.
 272   #
 273   # NOTE: This test must be in sync with the corresponding
 274   #       tests in BFD!
 275
 276   if test x${want64} = xfalse; then
 277     AC_CHECK_SIZEOF(long)
 278     if test "x${ac_cv_sizeof_long}" = "x8"; then
 279       want64=true
 280     fi
 281   fi
 282   if test x${want64} = xtrue; then
 283     TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
 284   else
 285     TARGET_OBS='$(ALL_TARGET_OBS)'
 286   fi
 287 fi
 288
 289 AC_SUBST(TARGET_OBS)
 290 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
 291
 292 # For other settings, only the main target counts.
 293 gdb_sim=
 294 gdb_osabi=
 295 build_gdbserver=
 296 targ=$target; . ${srcdir}/configure.tgt
 297
 298 # Fetch the default architecture and default target vector from BFD.
 299 targ=$target; . $srcdir/../bfd/config.bfd
 300
 301 # We only want the first architecture, so strip off the others if
 302 # there is more than one.
 303 targ_archs=`echo $targ_archs | sed 's/ .*//'`
 304
 305 if test "x$targ_archs" != x; then
 306   AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
 307     [Define to BFD's default architecture. ])
 308 fi
 309 if test "x$targ_defvec" != x; then
 310   AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
 311     [Define to BFD's default target vector. ])
 312 fi
 313
 314 # The CLI cannot be disabled yet, but may be in the future.
 315
 316 # Enable CLI.
 317 AC_ARG_ENABLE(gdbcli,
 318 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
 319   [case $enableval in
 320     yes)
 321       ;;
 322     no)
 323       AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
 324     *)
 325       AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
 326   esac],
 327   [enable_gdbcli=yes])
 328 if test x"$enable_gdbcli" = xyes; then
 329   if test -d $srcdir/cli; then
 330     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
 331     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
 332     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
 333     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
 334   fi
 335 fi
 336
 337 # Enable MI.
 338 AC_ARG_ENABLE(gdbmi,
 339 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
 340   [case $enableval in
 341     yes | no)
 342       ;;
 343     *)
 344       AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
 345   esac],
 346   [enable_gdbmi=yes])
 347 if test x"$enable_gdbmi" = xyes; then
 348   if test -d $srcdir/mi; then
 349     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
 350     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
 351     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
 352     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
 353   fi
 354 fi
 355
 356 # Enable TUI.
 357 AC_ARG_ENABLE(tui,
 358 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
 359   [case $enableval in
 360     yes | no | auto)
 361       ;;
 362     *)
 363       AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
 364   esac],enable_tui=auto)
 365
 366 # Enable gdbtk.
 367 AC_ARG_ENABLE(gdbtk,
 368 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
 369   [case $enableval in
 370     yes | no)
 371       ;;
 372     *)
 373       AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
 374   esac],
 375   [if test -d $srcdir/gdbtk; then
 376     enable_gdbtk=yes
 377   else
 378     enable_gdbtk=no
 379   fi])
 380 # We unconditionally disable gdbtk tests on selected platforms.
 381 case $host_os in
 382   go32* | windows*)
 383     AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
 384     enable_gdbtk=no ;;
 385 esac
 386
 387 # Libunwind support for ia64.
 388
 389 AC_ARG_WITH(libunwind-ia64,
 390 AS_HELP_STRING([--with-libunwind-ia64],
 391                [use libunwind frame unwinding for ia64 targets]),,
 392             [with_libunwind_ia64=auto])
 393
 394 # Backward compatibility option.
 395 if test "${with_libunwind+set}" = set; then
 396   if test x"$with_libunwind_ia64" != xauto; then
 397     AC_MSG_ERROR(
 398       [option --with-libunwind is deprecated, use --with-libunwind-ia64])
 399   fi
 400   AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
 401   with_libunwind_ia64="$with_libunwind"
 402 fi
 403
 404 case "$with_libunwind_ia64" in
 405   yes | no)
 406     ;;
 407   auto)
 408     AC_CHECK_HEADERS(libunwind-ia64.h)
 409     with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
 410     ;;
 411   *)
 412     AC_MSG_ERROR(
 413       [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
 414     ;;
 415 esac
 416
 417 if test x"$with_libunwind_ia64" = xyes; then
 418   AC_CHECK_HEADERS(libunwind-ia64.h)
 419   if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
 420     AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
 421   fi
 422   CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
 423   CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
 424   CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
 425 fi
 426
 427 opt_curses=no
 428 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
 429
 430 prefer_curses=no
 431 if test "$opt_curses" = "yes"; then
 432   prefer_curses=yes
 433 fi
 434
 435 # Profiling support.
 436 AC_ARG_ENABLE(profiling,
 437 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
 438   [case $enableval in
 439     yes | no)
 440       ;;
 441     *)
 442       AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
 443   esac],
 444  [enable_profiling=no])
 445
 446 AC_CHECK_FUNCS(monstartup _mcleanup)
 447 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
 448 [AC_TRY_LINK(
 449 [#include <stdlib.h>
 450 extern char _etext;
 451 ],
 452 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
 453 if test $ac_cv_var__etext = yes; then
 454   AC_DEFINE(HAVE__ETEXT, 1,
 455             [Define to 1 if your system has the _etext variable. ])
 456 fi
 457 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
 458 [AC_TRY_LINK(
 459 [#include <stdlib.h>
 460 extern char etext;
 461 ],
 462 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
 463 if test $ac_cv_var_etext = yes; then
 464   AC_DEFINE(HAVE_ETEXT, 1,
 465             [Define to 1 if your system has the etext variable. ])
 466 fi
 467 if test "$enable_profiling" = yes ; then
 468   if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
 469     AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
 470   fi
 471   PROFILE_CFLAGS=-pg
 472   OLD_CFLAGS="$CFLAGS"
 473   CFLAGS="$CFLAGS $PROFILE_CFLAGS"
 474
 475   AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
 476     [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
 477      ac_cv_cc_supports_pg=no)])
 478
 479   if test $ac_cv_cc_supports_pg = no; then
 480     AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
 481   fi
 482
 483   CFLAGS="$OLD_CFLAGS"
 484 fi
 485
 486 ACX_PKGVERSION([GDB])
 487 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
 488 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
 489 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
 490
 491 # --------------------- #
 492 # Checks for programs.  #
 493 # --------------------- #
 494
 495 AC_PROG_AWK
 496 AC_PROG_INSTALL
 497 AC_PROG_LN_S
 498 AC_PROG_RANLIB
 499 AC_PROG_YACC
 500
 501 AC_CHECK_TOOL(AR, ar)
 502 AC_CHECK_TOOL(DLLTOOL, dlltool)
 503 AC_CHECK_TOOL(WINDRES, windres)
 504
 505 case $host_os in
 506   gnu*)
 507     # Needed for GNU Hurd hosts.
 508     AC_CHECK_TOOL(MIG, mig)
 509     if test x"$MIG" = x; then
 510       AC_MSG_ERROR([MIG not found but required for $host hosts])
 511     fi
 512     ;;
 513 esac
 514
 515 # ---------------------- #
 516 # Checks for libraries.  #
 517 # ---------------------- #
 518
 519 # We might need to link with -lm; most simulators need it.
 520 AC_CHECK_LIB(m, main)
 521
 522 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 523 AC_SEARCH_LIBS(gethostbyname, nsl)
 524
 525 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 526 AC_SEARCH_LIBS(socketpair, socket)
 527
 528 # Link in zlib if we can.  This allows us to read compressed debug sections.
 529 AM_ZLIB
 530
 531 # On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
 532 # On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
 533 AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
 534   [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
 535             [Define to 1 if your system has the kinfo_getvmmap 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 # --------------------- #
 699 # Check for libpython.  #
 700 # --------------------- #
 701
 702 dnl Utility to simplify finding libpython.
 703 dnl $1 = pythonX.Y
 704 dnl $2 = the shell variable to assign the result to
 705 dnl      If libpython is found we store $version here.
 706 dnl $3 = additional flags to add to CPPFLAGS
 707 dnl $4 = additional flags to add to LIBS
 708
 709 AC_DEFUN([AC_TRY_LIBPYTHON],
 710 [
 711   version=$1
 712   define([have_libpython_var],$2)
 713   new_CPPFLAGS=$3
 714   new_LIBS=$4
 715   AC_MSG_CHECKING([for ${version}])
 716   save_CPPFLAGS=$CPPFLAGS
 717   save_LIBS=$LIBS
 718   CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
 719   LIBS="$LIBS $new_LIBS"
 720   found_usable_python=no
 721   AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
 722                                  [[Py_Initialize ();]]),
 723                  [have_libpython_var=${version}
 724                   found_usable_python=yes
 725                   PYTHON_CPPFLAGS=$new_CPPFLAGS
 726                   PYTHON_LIBS=$new_LIBS])
 727   CPPFLAGS=$save_CPPFLAGS
 728   LIBS=$save_LIBS
 729   AC_MSG_RESULT([${found_usable_python}])
 730 ])
 731
 732 dnl There are several different values for --with-python:
 733 dnl
 734 dnl no -   Don't include python support.
 735 dnl yes -  Include python support, error if it's missing.
 736 dnl        If we find python in $PATH, use it to fetch configure options,
 737 dnl        otherwise assume the compiler can find it with no help from us.
 738 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 739 dnl auto - Same as "yes", but if python is missing from the system,
 740 dnl        fall back to "no".
 741 dnl /path/to/python/exec-prefix -
 742 dnl        Use the python located in this directory.
 743 dnl        If /path/to/python/exec-prefix/bin/python exists, use it to find
 744 dnl        the compilation parameters.  Otherwise use
 745 dnl        -I/path/to/python/exec-prefix/include,
 746 dnl        -L/path/to/python/exec-prefix/lib.
 747 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 748 dnl        NOTE: This case is historical.  It is what was done for 7.0/7.1
 749 dnl        but is deprecated.
 750 dnl /path/to/python/executable -
 751 dnl        Run python-config.py with this version of python to fetch the
 752 dnl        compilation parameters.
 753 dnl        NOTE: This needn't be the real python executable.
 754 dnl        In a cross-compilation scenario (build != host), this could be
 755 dnl        a shell script that provides what python-config.py provides for
 756 dnl        --ldflags, --includes, --exec-prefix.
 757 dnl python-executable -
 758 dnl        Find python-executable in $PATH, and then handle the same as
 759 dnl        /path/to/python/executable.
 760 dnl
 761 dnl If a python program is specified, it is used to run python-config.py and
 762 dnl is passed --ldflags, --includes, --exec-prefix.
 763
 764 AC_ARG_WITH(python,
 765   AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
 766   [], [with_python=auto])
 767 AC_MSG_CHECKING([whether to use python])
 768 AC_MSG_RESULT([$with_python])
 769
 770 if test "${with_python}" = no; then
 771   AC_MSG_WARN([python support disabled; some features may be unavailable.])
 772   have_libpython=no
 773 else
 774   case "${with_python}" in
 775   [[\\/]]* | ?:[[\\/]]*)
 776     if test -d ${with_python}; then
 777       # Assume the python binary is ${with_python}/bin/python.
 778       python_prog="${with_python}/bin/python"
 779       python_prefix=
 780       # If python does not exit ${with_python}/bin, then try in
 781       # ${with_python}.  On Windows/MinGW, this is where the Python
 782       # executable is.
 783       if test ! -x "${python_prog}"; then
 784         python_prog="${with_python}/python"
 785         python_prefix=
 786       fi
 787       if test ! -x "${python_prog}"; then
 788         # Fall back to gdb 7.0/7.1 behaviour.
 789         python_prog=missing
 790         python_prefix=${with_python}
 791       fi
 792     elif test -x "${with_python}"; then
 793       # While we can't run python compiled for $host (unless host == build),
 794       # the user could write a script that provides the needed information,
 795       # so we support that.
 796       python_prog=${with_python}
 797       python_prefix=
 798     else
 799       AC_ERROR(invalid value for --with-python)
 800     fi
 801     ;;
 802   */*)
 803     # Disallow --with-python=foo/bar.
 804     AC_ERROR(invalid value for --with-python)
 805     ;;
 806   *)
 807     # The user has either specified auto, yes, or the name of the python
 808     # program assumed to be in $PATH.
 809     python_prefix=
 810     case "${with_python}" in
 811     yes | auto)
 812       if test ${build} = ${host}; then
 813         AC_PATH_PROG(python_prog_path, python, missing)
 814         if test "${python_prog_path}" = missing; then
 815           python_prog=missing
 816         else
 817           python_prog=${python_prog_path}
 818         fi
 819       else
 820         # Not much we can do except assume the cross-compiler will find the
 821         # right files.
 822         python_prog=missing
 823       fi
 824       ;;
 825     *)
 826       # While we can't run python compiled for $host (unless host == build),
 827       # the user could write a script that provides the needed information,
 828       # so we support that.
 829       python_prog="${with_python}"
 830       AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
 831       if test "${python_prog_path}" = missing; then
 832         AC_ERROR(unable to find python program ${python_prog})
 833       fi
 834       ;;
 835     esac
 836   esac
 837
 838   if test "${python_prog}" != missing; then
 839     # We have a python program to use, but it may be too old.
 840     # Don't flag an error for --with-python=auto (the default).
 841     have_python_config=yes
 842     python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
 843     if test $? != 0; then
 844       have_python_config=failed
 845       if test "${with_python}" != auto; then
 846         AC_ERROR(failure running python-config --includes)
 847       fi
 848     fi
 849     python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
 850     if test $? != 0; then
 851       have_python_config=failed
 852       if test "${with_python}" != auto; then
 853         AC_ERROR(failure running python-config --ldflags)
 854       fi
 855     fi
 856     python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
 857     if test $? != 0; then
 858       have_python_config=failed
 859       if test "${with_python}" != auto; then
 860         AC_ERROR(failure running python-config --exec-prefix)
 861       fi
 862     fi
 863   else
 864     # We do not have a python executable we can use to determine where
 865     # to find the Python headers and libs.  We cannot guess the include
 866     # path from the python_prefix either, because that include path
 867     # depends on the Python version.  So, there is nothing much we can
 868     # do except assume that the compiler will be able to find those files.
 869     python_includes=
 870     python_libs=
 871     have_python_config=no
 872   fi
 873
 874   # If we have python-config, only try the configuration it provides.
 875   # Otherwise fallback on the old way of trying different versions of
 876   # python in turn.
 877
 878   have_libpython=no
 879   if test "${have_python_config}" = yes; then
 880     # Determine the Python version by extracting "-lpython<version>"
 881     # part of the python_libs. <version> is usually X.Y with X and Y
 882     # being decimal numbers, but can also be XY (seen on Windows).
 883     #
 884     # The extraction is performed using sed with a regular expression.
 885     # Initially, the regexp used was using the '?' quantifier to make
 886     # the dot in the version number optional.  Unfortunately, this
 887     # does not work with non-GNU versions of sed because, because of
 888     # what looks like a limitation (the '?' quantifier does not work
 889     # with back-references).  We work around this limitation by using
 890     # the '*' quantifier instead.  It means that, in theory, we might
 891     # match unexpected version strings such as "-lpython2..7", but
 892     # this seems unlikely in practice.  And even if that happens,
 893     # an error will be triggered later on, when checking that version
 894     # number.
 895     python_version=`echo " ${python_libs} " \
 896                          | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
 897     case "${python_version}" in
 898     python*)
 899       AC_TRY_LIBPYTHON(${python_version}, have_libpython,
 900                        ${python_includes}, ${python_libs})
 901       ;;
 902     *)
 903       AC_MSG_ERROR([unable to determine python version from ${python_libs}])
 904       ;;
 905     esac
 906   elif test "${have_python_config}" != failed; then
 907     if test "${have_libpython}" = no; then
 908       AC_TRY_LIBPYTHON(python2.7, have_libpython,
 909                        ${python_includes}, "${python_libs} -lpython2.7")
 910     fi
 911     if test "${have_libpython}" = no; then
 912       AC_TRY_LIBPYTHON(python2.6, have_libpython,
 913                        ${python_includes}, "${python_libs} -lpython2.6")
 914     fi
 915     if test ${have_libpython} = no; then
 916       AC_TRY_LIBPYTHON(python2.5, have_libpython,
 917                        ${python_includes}, "${python_libs} -lpython2.5")
 918     fi
 919     if test ${have_libpython} = no; then
 920       AC_TRY_LIBPYTHON(python2.4, have_libpython,
 921                        ${python_includes}, "${python_libs} -lpython2.4")
 922     fi
 923   fi
 924   if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
 925     AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
 926   elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
 927     AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
 928   elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
 929     AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
 930   elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
 931     AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
 932   fi
 933
 934   if test "${have_libpython}" = no; then
 935     case "${with_python}" in
 936     yes)
 937       AC_MSG_ERROR([python is missing or unusable])
 938       ;;
 939     auto)
 940       AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
 941       ;;
 942     *)
 943       AC_MSG_ERROR([no usable python found at ${with_python}])
 944       ;;
 945     esac
 946   else
 947     if test -n "${python_prefix}"; then
 948       AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
 949                          [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
 950       GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
 951     fi
 952   fi
 953 fi
 954
 955 if test "${have_libpython}" != no; then
 956   AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
 957   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
 958   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
 959   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
 960   CONFIG_INSTALL="$CONFIG_INSTALL install-python"
 961   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
 962
 963   # Flags needed to compile Python code (taken from python-config --cflags).
 964   # We cannot call python-config directly because it will output whatever was
 965   # used when compiling the Python interpreter itself, including flags which
 966   # would make the python-related objects be compiled differently from the
 967   # rest of GDB (e.g., -O2 and -fPIC).
 968   if test "${GCC}" = yes; then
 969     tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
 970   fi
 971
 972   if test "x${tentative_python_cflags}" != x; then
 973     AC_MSG_CHECKING(compiler flags for python code)
 974     for flag in ${tentative_python_cflags}; do
 975       # Check that the compiler accepts it
 976       saved_CFLAGS="$CFLAGS"
 977       CFLAGS="$CFLAGS $flag"
 978       AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
 979       CFLAGS="$saved_CFLAGS"
 980     done
 981     AC_MSG_RESULT(${PYTHON_CFLAGS})
 982   fi
 983
 984   # On x64 Windows, Python's include headers, and pyconfig.h in
 985   # particular, rely on MS_WIN64 macro to detect that it's a 64bit
 986   # version of Windows.  Unfortunately, MS_WIN64 is only defined if
 987   # _MSC_VER, a Microsoft-specific macro, is defined.  So, when
 988   # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
 989   # The issue was reported to the Python community, but still isn't
 990   # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
 991
 992   case "$gdb_host" in
 993     mingw64)
 994            if test "${GCC}" = yes; then
 995              CPPFLAGS="$CPPFLAGS -DMS_WIN64"
 996            fi
 997            ;;
 998   esac
 999
1000   # Note that "python -m threading" cannot be used to check for
1001   # threading support due to a bug in Python 2.7.3
1002   # (http://bugs.python.org/issue15567).
1003   AC_MSG_CHECKING(whether python supports threads)
1004   saved_CPPFLAGS="${CPPFLAGS}"
1005   CPPFLAGS="${PYTHON_CPPFLAGS}"
1006   # Note that the test is reversed so that python_has_threads=yes on
1007   # unexpected failures.
1008   AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1009 #include <Python.h>
1010 #ifdef WITH_THREAD
1011 # error
1012 #endif
1013   ]]), [python_has_threads=no], [python_has_threads=yes])
1014   AC_MSG_RESULT(${python_has_threads})
1015   CPPFLAGS="${saved_CPPFLAGS}"
1016 else
1017   # Even if Python support is not compiled in, we need to have this file
1018   # included so that the "python" command, et.al., still exists.
1019   CONFIG_OBS="$CONFIG_OBS python.o"
1020   CONFIG_SRCS="$CONFIG_SRCS python/python.c"
1021 fi
1022
1023 # Work around Python http://bugs.python.org/issue10112.  See also
1024 # http://bugs.python.org/issue11410, otherwise -Wl,--dynamic-list has
1025 # no effect.  Note that the only test after this that uses Python is
1026 # the -rdynamic/-Wl,--dynamic-list test, and we do want that one to be
1027 # run without -export-dynamic too.
1028 PYTHON_LIBS=`echo $PYTHON_LIBS | sed -e 's/-Xlinker -export-dynamic//'`
1029
1030 AC_SUBST(PYTHON_CFLAGS)
1031 AC_SUBST(PYTHON_CPPFLAGS)
1032 AC_SUBST(PYTHON_LIBS)
1033 AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
1034
1035 # -------------------- #
1036 # Check for libguile.  #
1037 # -------------------- #
1038
1039 dnl Utility to simplify finding libguile.
1040 dnl $1 = pkg-config-program
1041 dnl $2 = space-separate list of guile versions to try
1042 dnl $3 = yes|no, indicating whether to flag errors or ignore them
1043 dnl $4 = the shell variable to assign the result to
1044 dnl      If libguile is found we store "yes" here.
1045
1046 AC_DEFUN([AC_TRY_LIBGUILE],
1047 [
1048   pkg_config=$1
1049   guile_version_list=$2
1050   flag_errors=$3
1051   define([have_libguile_var],$4)
1052   found_usable_guile=checking
1053   AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1054   for guile_version in ${guile_version_list}; do
1055     ${pkg_config} --exists ${guile_version} 2>/dev/null
1056     if test $? != 0; then
1057       continue
1058     fi
1059     dnl pkg-config says the package exists, so if we get an error now,
1060     dnl that's bad.
1061     new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1062     if test $? != 0; then
1063       AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1064     fi
1065     new_LIBS=`${pkg_config} --libs ${guile_version}`
1066     if test $? != 0; then
1067       AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1068     fi
1069     dnl If we get this far, great.
1070     found_usable_guile=${guile_version}
1071     break
1072   done
1073   if test "${found_usable_guile}" = "checking"; then
1074     if test "${flag_errors}" = "yes"; then
1075       AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1076     else
1077       found_usable_guile=no
1078     fi
1079   fi
1080   dnl One final sanity check.
1081   dnl The user could have said --with-guile=python-2.7.
1082   if test "${found_usable_guile}" != no; then
1083     save_CPPFLAGS=$CPPFLAGS
1084     save_LIBS=$LIBS
1085     CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1086     LIBS="$LIBS $new_LIBS"
1087     AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "libguile.h"]],
1088                                    [[scm_init_guile ();]]),
1089                    [have_libguile_var=yes
1090                     GUILE_CPPFLAGS=$new_CPPFLAGS
1091                     GUILE_LIBS=$new_LIBS],
1092                    [found_usable_guile=no])
1093     dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
1094     AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
1095       AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
1096                 [Define if Guile supports manual finalization.])
1097     )
1098     CPPFLAGS=$save_CPPFLAGS
1099     LIBS=$save_LIBS
1100     if test "${found_usable_guile}" = no; then
1101       if test "${flag_errors}" = yes; then
1102         AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1103       fi
1104     fi
1105   fi
1106   AC_MSG_RESULT([${found_usable_guile}])
1107 ])
1108
1109 dnl There are several different values for --with-guile:
1110 dnl
1111 dnl no -   Don't include guile support.
1112 dnl yes -  Include guile support, error if it's missing.
1113 dnl        The pkg-config program must be in $PATH.
1114 dnl auto - Same as "yes", but if guile is missing from the system,
1115 dnl        fall back to "no".
1116 dnl guile-version [guile-version-choice-2 ...] -
1117 dnl        A space-separated list of guile package versions to try.
1118 dnl        These are passed to pkg-config as-is.
1119 dnl        E.g., guile-2.0 or guile-2.2-uninstalled
1120 dnl        This requires making sure PKG_CONFIG_PATH is set appropriately.
1121 dnl /path/to/pkg-config -
1122 dnl        Use this pkg-config program.
1123 dnl        NOTE: This needn't be the "real" pkg-config program.
1124 dnl        It could be a shell script.  It is invoked as:
1125 dnl        pkg-config --exists $version
1126 dnl        pkg-config --cflags $version
1127 dnl        pkg-config --libs $version
1128 dnl        pkg-config --variable guild $version
1129 dnl        The script will be called with $version having each value in
1130 dnl        $try_guile_versions until --exists indicates success.
1131
1132 AC_ARG_WITH(guile,
1133   AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1134   [], [with_guile=auto])
1135 AC_MSG_CHECKING([whether to use guile])
1136 AC_MSG_RESULT([$with_guile])
1137
1138 dnl We check guile with pkg-config.
1139 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1140
1141 try_guile_versions="guile-2.2 guile-2.0"
1142 have_libguile=no
1143 case "${with_guile}" in
1144 no)
1145   AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1146   ;;
1147 auto)
1148   if test "${pkg_config_prog_path}" = "missing"; then
1149     AC_MSG_WARN([pkg-config not found, guile support disabled])
1150   else
1151     AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1152   fi
1153   ;;
1154 yes)
1155   if test "${pkg_config_prog_path}" = "missing"; then
1156     AC_MSG_ERROR([pkg-config not found])
1157   fi
1158   AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1159   ;;
1160 [[\\/]]* | ?:[[\\/]]*)
1161   if test -x "${with_guile}"; then
1162     AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1163   else
1164     AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1165   fi
1166   ;;
1167 "" | */*)
1168   # Disallow --with=guile="" and --with-guile=foo/bar.
1169   AC_MSG_ERROR([invalid value for --with-guile])
1170   ;;
1171 *)
1172   # A space separate list of guile versions to try, in order.
1173   if test "${pkg_config_prog_path}" = "missing"; then
1174     AC_MSG_ERROR([pkg-config not found])
1175   fi
1176   AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1177   ;;
1178 esac
1179
1180 if test "${have_libguile}" != no; then
1181   dnl Get the name of the 'guild' program.
1182   case "${with_guile}" in
1183   [[\\/]]* | ?:[[\\/]]*)
1184     GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1185     ;;
1186   *)
1187     GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1188     ;;
1189   esac
1190
1191   dnl Make sure guild can handle this host.
1192   GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1193   dnl If not, disable guile support.
1194   if test "$ac_cv_guild_ok" = no; then
1195     have_libguile=no
1196     AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1197   fi
1198 fi
1199
1200 if test "${have_libguile}" != no; then
1201   AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1202   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1203   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1204   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1205   CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1206   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1207
1208   dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1209   save_LIBS="$LIBS"
1210   save_CPPFLAGS="$CPPFLAGS"
1211   LIBS="$GUILE_LIBS"
1212   CPPFLAGS="$GUILE_CPPFLAGS"
1213   AC_CHECK_FUNCS([scm_new_smob])
1214   LIBS="$save_LIBS"
1215   CPPFLAGS="$save_CPPFLAGS"
1216 else
1217   # Even if Guile support is not compiled in, we need to have these files
1218   # included.
1219   CONFIG_OBS="$CONFIG_OBS guile.o"
1220   CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1221 fi
1222 AC_SUBST(GUILE_CPPFLAGS)
1223 AC_SUBST(GUILE_LIBS)
1224 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1225
1226 # --------------------- #
1227 # Check for libmcheck.  #
1228 # --------------------- #
1229
1230 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1231 # but turn it off if Python is enabled with threads, since -lmcheck is
1232 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1233 # and for releases.
1234 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1235    && $development; then
1236   libmcheck_default=yes
1237 else
1238   libmcheck_default=no
1239 fi
1240 GDB_AC_LIBMCHECK(${libmcheck_default})
1241
1242 if test "$ENABLE_LIBMCHECK" = "yes" \
1243         -a "${have_libpython}" != "no" \
1244         -a "${python_has_threads}" = "yes" ; then
1245   AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1246 fi
1247
1248 AC_ARG_WITH(intel_pt,
1249   AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
1250   [], [with_intel_pt=auto])
1251 AC_MSG_CHECKING([whether to use intel pt])
1252 AC_MSG_RESULT([$with_intel_pt])
1253
1254 if test "${with_intel_pt}" = no; then
1255   AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
1256   HAVE_LIBIPT=no
1257 else
1258   AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1259 #include <linux/perf_event.h>
1260 #ifndef PERF_ATTR_SIZE_VER5
1261 # error
1262 #endif
1263   ]]), [perf_event=yes], [perf_event=no])
1264   if test "$perf_event" != yes; then
1265     if test "$with_intel_pt" = yes; then
1266       AC_MSG_ERROR([linux/perf_event.h missing or too old])
1267     else
1268       AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
1269     fi
1270   fi
1271
1272   AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
1273   if test "$HAVE_LIBIPT" != yes; then
1274     if test "$with_intel_pt" = yes; then
1275       AC_MSG_ERROR([libipt is missing or unusable])
1276     else
1277       AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
1278     fi
1279   else
1280     save_LIBS=$LIBS
1281     LIBS="$LIBS $LIBIPT"
1282     AC_CHECK_FUNCS(pt_insn_event)
1283     AC_CHECK_MEMBERS([struct pt_insn.enabled, struct pt_insn.resynced], [], [],
1284                      [#include <intel-pt.h>])
1285     LIBS=$save_LIBS
1286   fi
1287 fi
1288
1289 # ------------------------- #
1290 # Checks for header files.  #
1291 # ------------------------- #
1292
1293 AC_HEADER_STDC
1294 # elf_hp.h is for HP/UX 64-bit shared library support.
1295 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1296                   thread_db.h \
1297                   sys/fault.h \
1298                   sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1299                   sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1300                   sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1301                   termios.h termio.h \
1302                   sgtty.h elf_hp.h \
1303                   dlfcn.h])
1304 AC_CHECK_HEADERS(sys/proc.h, [], [],
1305 [#if HAVE_SYS_PARAM_H
1306 # include <sys/param.h>
1307 #endif
1308 ])
1309 AC_CHECK_HEADERS(sys/user.h, [], [],
1310 [#if HAVE_SYS_PARAM_H
1311 # include <sys/param.h>
1312 #endif
1313 ])
1314
1315 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncursesw/ncurses.h ncurses/ncurses.h ncurses/term.h)
1316 AC_CHECK_HEADERS(term.h, [], [],
1317 [#if HAVE_CURSES_H
1318 # include <curses.h>
1319 #endif
1320 ])
1321
1322 # ------------------------- #
1323 # Checks for declarations.  #
1324 # ------------------------- #
1325
1326 libiberty_INIT
1327
1328 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1329 AM_LC_MESSAGES
1330
1331 # ----------------------- #
1332 # Checks for structures.  #
1333 # ----------------------- #
1334
1335 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1336
1337 # ------------------ #
1338 # Checks for types.  #
1339 # ------------------ #
1340
1341 AC_CHECK_TYPES(socklen_t, [], [],
1342 [#include <sys/types.h>
1343 #include <sys/socket.h>
1344 ])
1345
1346 # ------------------------------------- #
1347 # Checks for compiler characteristics.  #
1348 # ------------------------------------- #
1349
1350 AC_C_CONST
1351 AC_C_INLINE
1352 AC_C_BIGENDIAN
1353
1354 # ------------------------------ #
1355 # Checks for library functions.  #
1356 # ------------------------------ #
1357
1358 AC_FUNC_MMAP
1359 AC_FUNC_VFORK
1360 AC_CHECK_FUNCS([getauxval getrusage getuid getgid \
1361                 pipe poll pread pread64 pwrite resize_term \
1362                 sbrk setpgid setpgrp setsid \
1363                 sigaction sigprocmask sigsetmask socketpair \
1364                 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1365                 setrlimit getrlimit posix_madvise waitpid \
1366                 ptrace64 sigaltstack mkdtemp setns])
1367 AM_LANGINFO_CODESET
1368 GDB_AC_COMMON
1369
1370 # Check the return and argument types of ptrace.
1371 GDB_AC_PTRACE
1372
1373 dnl AC_FUNC_SETPGRP does not work when cross compiling
1374 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1375 if test "$cross_compiling" = no; then
1376   AC_FUNC_SETPGRP
1377 else
1378   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1379     [AC_TRY_COMPILE([
1380 #include <unistd.h>
1381 ], [
1382   if (setpgrp(1,1) == -1)
1383     exit (0);
1384   else
1385     exit (1);
1386 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1387 if test $ac_cv_func_setpgrp_void = yes; then
1388   AC_DEFINE(SETPGRP_VOID, 1)
1389 fi
1390 fi
1391
1392 # Assume we'll default to using the included libiberty regex.
1393 gdb_use_included_regex=yes
1394
1395 # However, if the system regex is GNU regex, then default to *not*
1396 # using the included regex.
1397 AC_CACHE_CHECK(
1398   [for GNU regex],
1399   [gdb_cv_have_gnu_regex],
1400   [AC_TRY_COMPILE(
1401     [#include <gnu-versions.h>],
1402     [#define REGEX_INTERFACE_VERSION 1
1403 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1404 # error "Version mismatch"
1405 #endif],
1406     gdb_cv_have_gnu_regex=yes,
1407     gdb_cv_have_gnu_regex=no)])
1408 if test $gdb_cv_have_gnu_regex = yes; then
1409   gdb_use_included_regex=no
1410 fi
1411
1412 AC_ARG_WITH(included-regex,
1413   AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1414   gdb_with_regex=$withval,
1415   gdb_with_regex=$gdb_use_included_regex)
1416 if test "$gdb_with_regex" = yes; then
1417   AC_DEFINE(USE_INCLUDED_REGEX, 1,
1418     [Define to 1 if the regex included in libiberty should be used.])
1419 fi
1420
1421 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1422 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1423 [#include <sys/param.h>
1424 #include <sys/proc.h>
1425 ])
1426
1427 # See if <sys/lwp.h> defines `struct lwp`.
1428 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1429 [AC_TRY_COMPILE([#include <sys/param.h>
1430 #define _KMEMUSER
1431 #include <sys/lwp.h>], [struct lwp l;],
1432 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1433 if test $gdb_cv_struct_lwp = yes; then
1434   AC_DEFINE(HAVE_STRUCT_LWP, 1,
1435             [Define to 1 if your system has struct lwp.])
1436 fi
1437
1438 # See if <machine/reg.h> degines `struct reg'.
1439 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1440 [AC_TRY_COMPILE([#include <sys/types.h>
1441 #include <machine/reg.h>], [struct reg r;],
1442 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1443 if test $gdb_cv_struct_reg = yes; then
1444   AC_DEFINE(HAVE_STRUCT_REG, 1,
1445             [Define to 1 if your system has struct reg in <machine/reg.h>.])
1446 fi
1447
1448 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1449 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1450 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1451                  [#include <sys/types.h>
1452 #include <machine/reg.h>])
1453
1454 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1455 # Older amd64 Linux's don't have the fs_base and gs_base members of
1456 # `struct user_regs_struct'.
1457 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1458                  [], [], [#include <sys/user.h>])
1459
1460 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1461 AC_MSG_CHECKING(for PTRACE_GETREGS)
1462 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1463 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1464                 [PTRACE_GETREGS;],
1465                 [gdb_cv_have_ptrace_getregs=yes],
1466                 [gdb_cv_have_ptrace_getregs=no])])
1467 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1468 if test $gdb_cv_have_ptrace_getregs = yes; then
1469   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1470   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1471 fi
1472
1473 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1474 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1475 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1476 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1477                 [PTRACE_GETFPXREGS;],
1478                 [gdb_cv_have_ptrace_getfpxregs=yes],
1479                 [gdb_cv_have_ptrace_getfpxregs=no])])
1480 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1481 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1482   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1483   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1484 fi
1485
1486 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1487 AC_MSG_CHECKING(for PT_GETDBREGS)
1488 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1489 [AC_TRY_COMPILE([#include <sys/types.h>
1490 #include <sys/ptrace.h>],
1491                 [PT_GETDBREGS;],
1492                 [gdb_cv_have_pt_getdbregs=yes],
1493                 [gdb_cv_have_pt_getdbregs=no])])
1494 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1495 if test $gdb_cv_have_pt_getdbregs = yes; then
1496   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1497   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1498 fi
1499
1500 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1501 AC_MSG_CHECKING(for PT_GETXMMREGS)
1502 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1503 [AC_TRY_COMPILE([#include <sys/types.h>
1504 #include <sys/ptrace.h>],
1505                 [PT_GETXMMREGS;],
1506                 [gdb_cv_have_pt_getxmmregs=yes],
1507                 [gdb_cv_have_pt_getxmmregs=no])])
1508 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1509 if test $gdb_cv_have_pt_getxmmregs = yes; then
1510   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1511   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1512 fi
1513
1514 # See if <sys/ptrace.h> supports LWP names on FreeBSD
1515 # Older FreeBSD versions don't have the pl_tdname member of
1516 # `struct ptrace_lwpinfo'.
1517 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
1518                  [#include <sys/ptrace.h>])
1519
1520 # See if <sys/ptrace.h> supports syscall fields on FreeBSD.  The
1521 # pl_syscall_code member of `struct ptrace_lwpinfo' was added in
1522 # FreeBSD 10.3.
1523 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_syscall_code], [], [],
1524                  [#include <sys/ptrace.h>])
1525
1526 # Detect which type of /proc is in use, such as for Solaris.
1527
1528 if test "${target}" = "${host}"; then
1529   case "${host}" in
1530   *-*-sysv4.2* | *-*-sysv5* )
1531       AC_DEFINE(NEW_PROC_API, 1,
1532       [Define if you want to use new multi-fd /proc interface.])
1533       ;;
1534   *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1535       AC_DEFINE(NEW_PROC_API, 1,
1536       [Define if you want to use new multi-fd /proc interface.])
1537       ;;
1538   esac
1539 fi
1540
1541 if test "$ac_cv_header_sys_procfs_h" = yes; then
1542   BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1543   BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1544   BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1545   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1546   BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1547   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1548   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1549   BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1550   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1551   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1552   BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1553
1554
1555   dnl Check for broken prfpregset_t type
1556
1557   dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1558   dnl prfpregset_t type (it's a typedef for the pointer to a struct
1559   dnl instead of the struct itself).  We detect this here, and work
1560   dnl around it in gdb_proc_service.h.
1561
1562   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1563     AC_MSG_CHECKING(whether prfpregset_t type is broken)
1564     AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1565       [AC_TRY_RUN([#include <sys/procfs.h>
1566        int main ()
1567        {
1568          if (sizeof (prfpregset_t) == sizeof (void *))
1569            return 1;
1570          return 0;
1571        }],
1572        gdb_cv_prfpregset_t_broken=no,
1573        gdb_cv_prfpregset_t_broken=yes,
1574        gdb_cv_prfpregset_t_broken=yes)])
1575     AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1576     if test $gdb_cv_prfpregset_t_broken = yes; then
1577       AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1578       [Define if the prfpregset_t type is broken.])
1579     fi
1580   fi
1581 fi
1582
1583 # Check if the compiler supports the `long long' type.
1584
1585 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1586                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1587 [[extern long long foo;]],
1588 [[switch (foo & 2) { case 0: return 1; }]])],
1589                                   gdb_cv_c_long_long=yes,
1590                                   gdb_cv_c_long_long=no)])
1591 if test $gdb_cv_c_long_long != yes; then
1592   # libdecnumber requires long long.
1593   AC_MSG_ERROR([Compiler must support long long for GDB.])
1594 fi
1595
1596 # Check if the compiler and runtime support printing long longs.
1597
1598 AC_CACHE_CHECK([for long long support in printf],
1599                gdb_cv_printf_has_long_long,
1600                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1601 [[char buf[32];
1602   long long l = 0;
1603   l = (l << 16) + 0x0123;
1604   l = (l << 16) + 0x4567;
1605   l = (l << 16) + 0x89ab;
1606   l = (l << 16) + 0xcdef;
1607   sprintf (buf, "0x%016llx", l);
1608   return (strcmp ("0x0123456789abcdef", buf));]])],
1609                               gdb_cv_printf_has_long_long=yes,
1610                               gdb_cv_printf_has_long_long=no,
1611                               gdb_cv_printf_has_long_long=no)])
1612 if test $gdb_cv_printf_has_long_long = yes; then
1613   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1614             [Define to 1 if the "%ll" format works to print long longs.])
1615 fi
1616
1617 # Check if the compiler and runtime support printing decfloats.
1618
1619 AC_CACHE_CHECK([for decfloat support in printf],
1620                gdb_cv_printf_has_decfloat,
1621                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1622 [[char buf[64];
1623   _Decimal32 d32 = 1.2345df;
1624   _Decimal64 d64 = 1.2345dd;
1625   _Decimal128 d128 = 1.2345dl;
1626   sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1627   return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1628                               gdb_cv_printf_has_decfloat=yes,
1629                               gdb_cv_printf_has_decfloat=no,
1630                               gdb_cv_printf_has_decfloat=no)])
1631 if test $gdb_cv_printf_has_decfloat = yes; then
1632   AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1633             [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1634 fi
1635
1636 # Check if the compiler supports the `long double' type.  We can't use
1637 # AC_C_LONG_DOUBLE because that one does additional checks on the
1638 # constants defined in <float.h> that fail on some systems,
1639 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1640
1641 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1642                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1643                                   gdb_cv_c_long_double=yes,
1644                                   gdb_cv_c_long_double=no)])
1645 if test $gdb_cv_c_long_double = yes; then
1646   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1647            [Define to 1 if the compiler supports long double.])
1648 fi
1649
1650 # Check if the compiler and runtime support printing long doubles.
1651
1652 AC_CACHE_CHECK([for long double support in printf],
1653                gdb_cv_printf_has_long_double,
1654                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1655 [[char buf[16];
1656   long double f = 3.141592653;
1657   sprintf (buf, "%Lg", f);
1658   return (strncmp ("3.14159", buf, 7));]])],
1659                               gdb_cv_printf_has_long_double=yes,
1660                               gdb_cv_printf_has_long_double=no,
1661                               gdb_cv_printf_has_long_double=no)])
1662 if test $gdb_cv_printf_has_long_double = yes; then
1663   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1664             [Define to 1 if the "%Lg" format works to print long doubles.])
1665 fi
1666
1667 # Check if the compiler and runtime support scanning long doubles.
1668
1669 AC_CACHE_CHECK([for long double support in scanf],
1670                gdb_cv_scanf_has_long_double,
1671                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1672 [[#include <stdio.h>]],
1673 [[char *buf = "3.141592653";
1674   long double f = 0;
1675   sscanf (buf, "%Lg", &f);
1676   return !(f > 3.14159 && f < 3.14160);]])],
1677                               gdb_cv_scanf_has_long_double=yes,
1678                               gdb_cv_scanf_has_long_double=no,
1679                               gdb_cv_scanf_has_long_double=no)])
1680 if test $gdb_cv_scanf_has_long_double = yes; then
1681   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1682             [Define to 1 if the "%Lg" format works to scan long doubles.])
1683 fi
1684
1685 case ${host_os} in
1686 aix*)
1687   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1688     SAVE_LDFLAGS=$LDFLAGS
1689
1690     case $GCC in
1691     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1692     *) gdb_cv_bigtoc=-bbigtoc ;;
1693     esac
1694
1695     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1696     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1697     LDFLAGS="${SAVE_LDFLAGS}"
1698   ])
1699   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1700   ;;
1701 esac
1702
1703 AC_MSG_CHECKING(for the dynamic export flag)
1704 dynamic_list=false
1705 if test "${gdb_native}" = yes; then
1706    # The dynamically loaded libthread_db needs access to symbols in the gdb
1707    # executable.  Older GNU ld supports --export-dynamic but --dynamic-list
1708    # may not be supported there.
1709    old_LDFLAGS="$LDFLAGS"
1710    # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1711    RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1712    LDFLAGS="$LDFLAGS $RDYNAMIC"
1713    if test "${have_libpython}" = no; then
1714      AC_TRY_LINK([], [], [dynamic_list=true])
1715    else
1716      # Workaround http://bugs.python.org/issue4434 where static
1717      # libpythonX.Y.a would get its symbols required for
1718      # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1719      # Problem does not happen for the recommended libpythonX.Y.so linkage.
1720
1721      # Note the workaround for Python
1722      # http://bugs.python.org/issue10112 earlier has removed
1723      # -export-dynamic from PYTHON_LIBS.  That's exactly what we want
1724      # here too, as otherwise it'd make this -Wl,--dynamic-list test
1725      # always pass.
1726      old_CFLAGS="$CFLAGS"
1727      CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1728      old_LIBS="$LIBS"
1729      LIBS="$LIBS $PYTHON_LIBS"
1730      old_CPPFLAGS="$CPPFLAGS"
1731      CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
1732      AC_RUN_IFELSE(
1733        AC_LANG_PROGRAM(
1734          [#include "Python.h"],
1735          [int err;
1736           Py_Initialize ();
1737           err = PyRun_SimpleString ("import itertools\n");
1738           Py_Finalize ();
1739           return err == 0 ? 0 : 1;]),
1740        [dynamic_list=true], [], [true])
1741      LIBS="$old_LIBS"
1742      CFLAGS="$old_CFLAGS"
1743      CPPFLAGS="$old_CPPFLAGS"
1744    fi
1745    LDFLAGS="$old_LDFLAGS"
1746 fi
1747 if $dynamic_list; then
1748   found="-Wl,--dynamic-list"
1749   RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1750 else
1751   found="-rdynamic"
1752   RDYNAMIC="-rdynamic"
1753 fi
1754 AC_SUBST(RDYNAMIC)
1755 AC_MSG_RESULT($found)
1756
1757 dnl For certain native configurations, we need to check whether thread
1758 dnl support can be built in or not.
1759 dnl
1760 dnl Note that we only want this if we are both native (host == target),
1761 dnl and not doing a canadian cross build (build == host).
1762
1763 if test ${build} = ${host} -a ${host} = ${target} ; then
1764    case ${host_os} in
1765    aix*)
1766       AC_MSG_CHECKING(for AiX thread debugging library)
1767       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1768                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1769                                    [#ifndef PTHDB_VERSION_3
1770                                     #error
1771                                     #endif],
1772                                    gdb_cv_have_aix_thread_debug=yes,
1773                                    gdb_cv_have_aix_thread_debug=no)])
1774       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1775       if test $gdb_cv_have_aix_thread_debug = yes; then
1776          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1777          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1778          LIBS="$LIBS -lpthdebug"
1779
1780          # Older versions of AIX do not provide the declaration for
1781          # the getthrds function (it appears that it was introduced
1782          # with AIX 6.x).
1783          AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1784       fi
1785       ;;
1786    esac
1787    AC_SUBST(CONFIG_LDFLAGS)
1788 fi
1789
1790 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1791 dnl other error codes.
1792 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1793    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1794                   gdb_cv_thread_db_h_has_td_notalloc,
1795      AC_TRY_COMPILE(
1796        [#include <thread_db.h>],
1797        [int i = TD_NOTALLOC;],
1798        gdb_cv_thread_db_h_has_td_notalloc=yes,
1799        gdb_cv_thread_db_h_has_td_notalloc=no
1800      )
1801    )
1802    AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1803                   gdb_cv_thread_db_h_has_td_version,
1804      AC_TRY_COMPILE(
1805        [#include <thread_db.h>],
1806        [int i = TD_VERSION;],
1807        gdb_cv_thread_db_h_has_td_version=yes,
1808        gdb_cv_thread_db_h_has_td_version=no
1809      )
1810    )
1811    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1812                   gdb_cv_thread_db_h_has_td_notls,
1813      AC_TRY_COMPILE(
1814        [#include <thread_db.h>],
1815        [int i = TD_NOTLS;],
1816        gdb_cv_thread_db_h_has_td_notls=yes,
1817        gdb_cv_thread_db_h_has_td_notls=no
1818      )
1819    )
1820 fi
1821 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1822   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1823             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1824 fi
1825 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1826   AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1827             [Define if <thread_db.h> has the TD_VERSION error code.])
1828 fi
1829 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1830   AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1831             [Define if <thread_db.h> has the TD_NOTLS error code.])
1832 fi
1833
1834 dnl Check if we can disable the virtual address space randomization.
1835 dnl The functionality of setarch -R.
1836 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1837 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1838 #      if !HAVE_DECL_ADDR_NO_RANDOMIZE
1839 #       define ADDR_NO_RANDOMIZE 0x0040000
1840 #      endif
1841        /* Test the flag could be set and stays set.  */
1842        personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1843        if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1844            return 1])])
1845 AC_RUN_IFELSE([PERSONALITY_TEST],
1846               [have_personality=true],
1847               [have_personality=false],
1848               [AC_LINK_IFELSE([PERSONALITY_TEST],
1849                               [have_personality=true],
1850                               [have_personality=false])])
1851 if $have_personality
1852 then
1853     AC_DEFINE([HAVE_PERSONALITY], 1,
1854               [Define if you support the personality syscall.])
1855 fi
1856
1857 dnl Set the host's .gdbinit filename.
1858 case $host_os in
1859   go32* | *djgpp*)
1860     gdbinit=gdb.ini
1861     ;;
1862   *)
1863     gdbinit=.gdbinit
1864     ;;
1865 esac
1866 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1867
1868 dnl Handle optional features that can be enabled.
1869
1870 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1871 # except that the argument to --with-sysroot is optional.
1872 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1873 if test "x$with_sysroot" = xyes; then
1874   with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1875 fi
1876 AC_ARG_WITH(sysroot,
1877   AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1878                  [search for usr/lib et al within DIR]),
1879   [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1880 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1881               [search for usr/lib et al within DIR])
1882 AC_SUBST(TARGET_SYSTEM_ROOT)
1883 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1884
1885 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1886     [automatically load a system-wide gdbinit file],
1887     [])
1888
1889 AM_GDB_WARNINGS
1890
1891 # In the Cygwin environment, we need some additional flags.
1892 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1893 [AC_EGREP_CPP(^lose$, [
1894 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1895 lose
1896 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1897
1898
1899 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1900 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1901 case ${host} in
1902   *go32* ) SER_HARDWIRE=ser-go32.o ;;
1903   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1904   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1905 esac
1906 AC_SUBST(SER_HARDWIRE)
1907
1908 # libreadline needs libuser32.a in a cygwin environment
1909 WIN32LIBS=
1910 if test x$gdb_cv_os_cygwin = xyes; then
1911     WIN32LIBS="-luser32"
1912     case "${target}" in
1913         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1914         ;;
1915     esac
1916 fi
1917
1918 # The ser-tcp.c module requires sockets.
1919 case ${host} in
1920   *mingw32*)
1921     AC_DEFINE(USE_WIN32API, 1,
1922               [Define if we should use the Windows API, instead of the
1923                POSIX API.  On Windows, we use the Windows API when
1924                building for MinGW, but the POSIX API when building
1925                for Cygwin.])
1926     WIN32LIBS="$WIN32LIBS -lws2_32"
1927     ;;
1928 esac
1929 AC_SUBST(WIN32LIBS)
1930
1931 # Add ELF support to GDB, but only if BFD includes ELF support.
1932 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1933                  [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1934 if test $gdb_cv_var_elf = yes; then
1935   CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
1936   AC_DEFINE(HAVE_ELF, 1,
1937             [Define if ELF support should be included.])
1938   # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1939   if test "$plugins" = "yes"; then
1940     AC_SEARCH_LIBS(dlopen, dl)
1941   fi
1942 fi
1943
1944 # Add macho support to GDB, but only if BFD includes it.
1945 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1946                  [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1947 if test $gdb_cv_var_macho = yes; then
1948   CONFIG_OBS="$CONFIG_OBS machoread.o"
1949 fi
1950
1951 # Add any host-specific objects to GDB.
1952 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1953
1954 # If building on ELF, look for lzma support for embedded compressed debug info.
1955 if test $gdb_cv_var_elf = yes; then
1956   AC_ARG_WITH(lzma,
1957     AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1958     [], [with_lzma=auto])
1959   AC_MSG_CHECKING([whether to use lzma])
1960   AC_MSG_RESULT([$with_lzma])
1961
1962   if test "${with_lzma}" != no; then
1963     AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1964                           [lzma_index_iter iter;
1965                            lzma_index_iter_init (&iter, 0);
1966                            lzma_mf_is_supported (LZMA_MF_HC3);])
1967     if test "$HAVE_LIBLZMA" != yes; then
1968       if test "$with_lzma" = yes; then
1969         AC_MSG_ERROR([missing liblzma for --with-lzma])
1970       fi
1971     fi
1972   fi
1973 fi
1974
1975 LIBGUI="../libgui/src/libgui.a"
1976 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1977 AC_SUBST(LIBGUI)
1978 AC_SUBST(GUI_CFLAGS_X)
1979
1980 WIN32LDAPP=
1981 AC_SUBST(WIN32LIBS)
1982 AC_SUBST(WIN32LDAPP)
1983
1984 case "${host}" in
1985 *-*-cygwin* | *-*-mingw* )
1986     configdir="win"
1987     ;;
1988 *)
1989     configdir="unix"
1990     ;;
1991 esac
1992
1993 GDBTKLIBS=
1994 if test "${enable_gdbtk}" = "yes"; then
1995
1996     # Gdbtk must have an absolute path to srcdir in order to run
1997     # properly when not installed.
1998     here=`pwd`
1999     cd ${srcdir}
2000     GDBTK_SRC_DIR=`pwd`
2001     cd $here
2002
2003     SC_PATH_TCLCONFIG
2004
2005     # If $no_tk is nonempty, then we can't do Tk, and there is no
2006     # point to doing Tcl.
2007     SC_PATH_TKCONFIG
2008
2009     if test -z "${no_tcl}" -a -z "${no_tk}"; then
2010         SC_LOAD_TCLCONFIG
2011
2012         # Check for in-tree tcl
2013         here=`pwd`
2014         cd ${srcdir}/..
2015         topdir=`pwd`
2016         cd ${here}
2017
2018         intree="no"
2019         if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2020           intree="yes"
2021         fi
2022
2023         # Find Tcl private headers
2024         if test x"${intree}" = xno; then
2025           CY_AC_TCL_PRIVATE_HEADERS
2026           TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2027           TCL_LIBRARY="${TCL_LIB_SPEC}"
2028           TCL_DEPS=""
2029         else
2030           # If building tcl in the same src tree, private headers
2031           # are not needed, but we need to be sure to use the right
2032           # headers library
2033           TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2034           TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2035           TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2036         fi
2037         AC_SUBST(TCL_INCLUDE)
2038         AC_SUBST(TCL_LIBRARY)
2039         AC_SUBST(TCL_DEPS)
2040
2041         SC_LOAD_TKCONFIG
2042
2043         # Check for in-tree Tk
2044         intree="no"
2045         if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2046           intree="yes"
2047         fi
2048
2049         # Find Tk private headers
2050         if test x"${intree}" = xno; then
2051           CY_AC_TK_PRIVATE_HEADERS
2052           TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2053           TK_LIBRARY=${TK_LIB_SPEC}
2054           TK_DEPS=""
2055         else
2056           TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2057           TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2058           TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2059         fi
2060         AC_SUBST(TK_INCLUDE)
2061         AC_SUBST(TK_LIBRARY)
2062         AC_SUBST(TK_DEPS)
2063         AC_SUBST(TK_XINCLUDES)
2064
2065         ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2066
2067         # Include some libraries that Tcl and Tk want.
2068         TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2069         # Yes, the ordering seems wrong here.  But it isn't.
2070         # TK_LIBS is the list of libraries that need to be linked
2071         # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
2072         # were in LIBS then any link tests after this point would
2073         # try to include things like `$(LIBGUI)', which wouldn't work.
2074         GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2075
2076         CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2077         CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2078         CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2079         CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2080         CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2081         CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2082         CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2083
2084         if test x$gdb_cv_os_cygwin = xyes; then
2085           WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2086           WIN32LDAPP="-Wl,--subsystem,console"
2087           CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2088         fi
2089
2090         AC_CONFIG_SUBDIRS(gdbtk)
2091     fi
2092 fi
2093
2094 AC_SUBST(X_CFLAGS)
2095 AC_SUBST(X_LDFLAGS)
2096 AC_SUBST(X_LIBS)
2097 AC_SUBST(GDBTKLIBS)
2098 AC_SUBST(GDBTK_CFLAGS)
2099 AC_SUBST(GDBTK_SRC_DIR)
2100
2101 AC_PATH_X
2102
2103 # Unlike the sim directory, whether a simulator is linked is controlled by
2104 # presence of a gdb_sim definition in the target configure.tgt entry.
2105 # This code just checks for a few cases where we'd like to ignore those
2106 # definitions, even when they're present in the '.mt' file.  These cases
2107 # are when --disable-sim is specified, or if the simulator directory is
2108 # not part of the source tree.
2109 #
2110 AC_ARG_ENABLE(sim,
2111 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2112 [echo "enable_sim = $enable_sim";
2113  echo "enableval = ${enableval}";
2114  case "${enableval}" in
2115   yes) ignore_sim=false ;;
2116   no)  ignore_sim=true ;;
2117   *)   ignore_sim=false ;;
2118  esac],
2119 [ignore_sim=false])
2120
2121 if test ! -d "${srcdir}/../sim"; then
2122   ignore_sim=true
2123 fi
2124
2125 SIM=
2126 SIM_OBS=
2127 if test "${ignore_sim}" = "false"; then
2128   if test x"${gdb_sim}" != x ; then
2129     SIM="${gdb_sim}"
2130     SIM_OBS="remote-sim.o"
2131     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2132
2133     # Some tdep code should only be compiled in when the ppc sim is
2134     # built.  PR sim/13418.
2135     case $target in
2136       powerpc*-*-*)
2137         AC_DEFINE(WITH_PPC_SIM, 1, [Define if the PPC simulator is being linked in.])
2138         ;;
2139     esac
2140   fi
2141 fi
2142 AC_SUBST(SIM)
2143 AC_SUBST(SIM_OBS)
2144
2145 AC_SUBST(ENABLE_CFLAGS)
2146 AC_SUBST(PROFILE_CFLAGS)
2147
2148 AC_SUBST(CONFIG_OBS)
2149 AC_SUBST(CONFIG_DEPS)
2150 AC_SUBST(CONFIG_SRCS)
2151 AC_SUBST(CONFIG_ALL)
2152 AC_SUBST(CONFIG_CLEAN)
2153 AC_SUBST(CONFIG_INSTALL)
2154 AC_SUBST(CONFIG_UNINSTALL)
2155
2156 # List of host floatformats.
2157 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2158 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2159 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2160
2161 # target_subdir is used by the testsuite to find the target libraries.
2162 target_subdir=
2163 if test "${host}" != "${target}"; then
2164     target_subdir="${target_alias}/"
2165 fi
2166 AC_SUBST(target_subdir)
2167
2168 # Import nat definitions.
2169 nat_makefile_frag=/dev/null
2170 if test "${gdb_native}" = "yes"; then
2171   . ${srcdir}/configure.nat
2172   nativefile=$NAT_FILE
2173 fi
2174
2175 AC_SUBST(NAT_FILE)
2176 AC_SUBST(NATDEPFILES)
2177 AC_SUBST(NAT_CDEPS)
2178 AC_SUBST(LOADLIBES)
2179 AC_SUBST(MH_CFLAGS)
2180 AC_SUBST(XM_CLIBS)
2181 AC_SUBST(NAT_GENERATED_FILES)
2182 AC_SUBST(HAVE_NATIVE_GCORE_HOST)
2183 AC_SUBST_FILE(nat_makefile_frag)
2184
2185 if test x"${gdb_osabi}" != x ; then
2186     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2187                        [Define to the default OS ABI for this configuration.])
2188 fi
2189
2190 # Enable multi-ice-gdb-server.
2191 AC_ARG_ENABLE(multi-ice,
2192 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2193   [case $enableval in
2194     yes | no)
2195       ;;
2196     *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2197   esac])
2198 if test "x$enable_multi_ice" = xyes; then
2199    AC_CONFIG_SUBDIRS(multi-ice)
2200 fi
2201
2202 AC_ARG_ENABLE(gdbserver,
2203 AS_HELP_STRING([--enable-gdbserver],
2204                [automatically build gdbserver (yes/no/auto, default is auto)]),
2205 [case "${enableval}" in
2206   yes| no|auto) ;;
2207   *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2208 esac],[enable_gdbserver=auto])
2209
2210 # We only build gdbserver automatically in a native configuration, and
2211 # only if the user did not explicitly disable its build.
2212 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2213   AC_MSG_CHECKING(whether gdbserver is supported on this host)
2214   if test "x$build_gdbserver" = xyes; then
2215     AC_MSG_RESULT(yes)
2216     AC_CONFIG_SUBDIRS(gdbserver)
2217     gdbserver_build_enabled=yes
2218   else
2219     AC_MSG_RESULT(no)
2220   fi
2221 fi
2222
2223 # If the user explicitly request the gdbserver to be built, verify that
2224 # we were in fact able to enable it.
2225 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2226   AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2227 fi
2228
2229 # Check for babeltrace and babeltrace-ctf
2230 AC_ARG_WITH(babeltrace,
2231   AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2232   [], [with_babeltrace=auto])
2233 AC_MSG_CHECKING([whether to use babeltrace])
2234 AC_MSG_RESULT([$with_babeltrace])
2235
2236 if test "x$with_babeltrace" = "xno"; then
2237   AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2238 else
2239   # Append -Werror to CFLAGS so that configure can catch the warning
2240   # "assignment from incompatible pointer type", which is related to
2241   # the babeltrace change from 1.0.3 to 1.1.0.  Babeltrace 1.1.0 works
2242   # in GDB, while babeltrace 1.0.3 is broken.
2243   # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2244   # safe to save and restore CFLAGS here.
2245   saved_CFLAGS=$CFLAGS
2246   CFLAGS="$CFLAGS -Werror"
2247   AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2248                         [#include <babeltrace/babeltrace.h>
2249                          #include <babeltrace/ctf/events.h>
2250                          #include <babeltrace/ctf/iterator.h>],
2251                         [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2252                         struct bt_ctf_event *event = NULL;
2253                         const struct bt_definition *scope;
2254
2255                         pos->type = BT_SEEK_BEGIN;
2256                         bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2257                         scope = bt_ctf_get_top_level_scope (event,
2258                                                            BT_STREAM_EVENT_HEADER);
2259                         bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2260                         ])
2261   CFLAGS=$saved_CFLAGS
2262
2263   if test "$HAVE_LIBBABELTRACE" != yes; then
2264      if test "$with_babeltrace" = yes; then
2265        AC_MSG_ERROR([babeltrace is missing or unusable])
2266      else
2267        AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2268      fi
2269   fi
2270 fi
2271
2272 # If nativefile (NAT_FILE) is not set in configure.nat, we link to an
2273 # empty version.
2274
2275 files=
2276 links=
2277
2278 rm -f nm.h
2279 if test "${nativefile}" != ""; then
2280     case "${nativefile}" in
2281       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2282       * ) GDB_NM_FILE="${nativefile}"
2283     esac
2284     files="${files} ${GDB_NM_FILE}"
2285     links="${links} nm.h"
2286     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2287 fi
2288 AC_SUBST(GDB_NM_FILE)
2289
2290 dnl Add dependency for xsltproc if building with maintainer-mode enabled.
2291 AC_PATH_PROGS(XSLTPROC, xsltproc, missing)
2292 if test "x$USE_MAINTAINER_MODE" = xyes; then
2293   if test "${XSLTPROC}" = missing; then
2294     AC_ERROR(unable to find xsltproc.  maintainer-mode requires xsltproc.)
2295   fi
2296 fi
2297 AC_SUBST(XSLTPROC)
2298
2299 AC_LINK_FILES($files, $links)
2300
2301 dnl Check for exe extension set on certain hosts (e.g. Win32)
2302 AC_EXEEXT
2303
2304 dnl  Detect the character set used by this host.
2305 dnl  At the moment, we just assume it's UTF-8.
2306 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2307           [Define to be a string naming the default host character set.])
2308
2309 if $development; then
2310   AC_DEFINE(GDB_SELF_TEST, 1,
2311             [Define if self-testing features should be enabled])
2312   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_UNITTESTS_OBS)"
2313   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_UNITTESTS_SRCS)"
2314 fi
2315
2316 GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
2317 GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
2318 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2319 AC_CONFIG_FILES([Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile],
2320 [
2321 case x$CONFIG_HEADERS in
2322 xconfig.h:config.in)
2323 echo > stamp-h ;;
2324 esac
2325 ])
2326
2327 AC_OUTPUT