gdb/configure.ac

   1 dnl Autoconf configure script for GDB, the GNU debugger.
   2 dnl Copyright (C) 1995-2016 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 . $srcdir/../bfd/development.sh
  28
  29 AC_PROG_CC
  30 AC_PROG_CXX
  31
  32 AC_USE_SYSTEM_EXTENSIONS
  33 ACX_LARGEFILE
  34 AM_PROG_CC_STDC
  35 AM_PROG_INSTALL_STRIP
  36
  37 AC_CONFIG_AUX_DIR(..)
  38 AC_CANONICAL_SYSTEM
  39 AC_ARG_PROGRAM
  40
  41 # See if we are building with C++, and substitute COMPILER.
  42 GDB_AC_BUILD_WITH_CXX
  43
  44 # Dependency checking.
  45 ZW_CREATE_DEPDIR
  46 ZW_PROG_COMPILER_DEPENDENCIES([CC])
  47
  48 # Check for the 'make' the user wants to use.
  49 AC_CHECK_PROGS(MAKE, make)
  50 MAKE_IS_GNU=
  51 case "`$MAKE --version 2>&1 | sed 1q`" in
  52   *GNU*)
  53     MAKE_IS_GNU=yes
  54     ;;
  55 esac
  56 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
  57 AC_PROG_MAKE_SET
  58
  59 gnulib_extra_configure_args=
  60 # If large-file support is disabled, make sure gnulib does the same.
  61 if test "$enable_largefile" = no; then
  62 gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
  63 fi
  64
  65 # Configure gnulib.  We need to build gnulib under some other
  66 # directory not "gnulib", to avoid the problem of both GDB and
  67 # GDBserver wanting to build it in the same directory, when building
  68 # in the source dir.
  69 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"],
  70                   ["$gnulib_extra_configure_args"])
  71
  72 dnl List of object files and targets accumulated by configure.
  73
  74 CONFIG_OBS=
  75 CONFIG_DEPS=
  76 CONFIG_SRCS=
  77 ENABLE_CFLAGS=
  78
  79 CONFIG_ALL=
  80 CONFIG_CLEAN=
  81 CONFIG_INSTALL=
  82 CONFIG_UNINSTALL=
  83
  84 dnl Set up for gettext.
  85 ZW_GNU_GETTEXT_SISTER_DIR
  86
  87 localedir='${datadir}/locale'
  88 AC_SUBST(localedir)
  89
  90 if test x"$USE_NLS" = xyes; then
  91    CONFIG_ALL="$CONFIG_ALL all-po"
  92    CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
  93    CONFIG_INSTALL="$CONFIG_INSTALL install-po"
  94    CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
  95 fi
  96
  97 GNULIB=build-gnulib/import
  98
  99 # For Makefile dependencies.
 100 GNULIB_STDINT_H=
 101 if test x"$STDINT_H" != x; then
 102   GNULIB_STDINT_H=$GNULIB/$STDINT_H
 103 fi
 104 AC_SUBST(GNULIB_STDINT_H)
 105
 106 PACKAGE=gdb
 107 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
 108 AC_SUBST(PACKAGE)
 109
 110 # We never need to detect it in this sub-configure.
 111 # But preserve it for config.status --recheck.
 112 AC_ARG_VAR(MAKEINFO,
 113   [Parent configure detects if it is of sufficient version.])
 114 AC_ARG_VAR(MAKEINFOFLAGS,
 115   [Parameters for MAKEINFO.])
 116
 117 MAKEINFO_EXTRA_FLAGS=""
 118 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
 119   [echo '@clicksequence{a @click{} b}' >conftest.texinfo
 120   if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
 121     gdb_cv_have_makeinfo_click=yes
 122   else
 123     gdb_cv_have_makeinfo_click=no
 124   fi])
 125 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
 126   MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
 127 fi
 128 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
 129
 130 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
 131     [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
 132     [${libdir}/debug])
 133
 134 # We can't pass paths as command line arguments.
 135 # Mingw32 tries to be clever and will convert the paths for us.
 136 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
 137 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
 138 # This breaks GDB's relocatable path conversions since paths passed in
 139 # config.h would not get so translated, the path prefixes no longer match.
 140 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
 141
 142 # GDB's datadir relocation
 143
 144 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
 145     [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
 146     [${datadir}/gdb])
 147
 148 AC_ARG_WITH(relocated-sources,
 149 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
 150 [reloc_srcdir="${withval}"
 151  AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
 152               [Relocated directory for source files. ])
 153 ])
 154
 155 AC_MSG_CHECKING([for default auto-load directory])
 156 AC_ARG_WITH(auto-load-dir,
 157 AS_HELP_STRING([--with-auto-load-dir=PATH],
 158   [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
 159   [with_auto_load_dir='$debugdir:$datadir/auto-load'])
 160 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
 161 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
 162               [Directories from which to load auto-loaded scripts.])
 163 AC_MSG_RESULT([$with_auto_load_dir])
 164
 165 AC_MSG_CHECKING([for default auto-load safe-path])
 166 AC_ARG_WITH(auto-load-safe-path,
 167 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
 168   [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
 169 AS_HELP_STRING([--without-auto-load-safe-path],
 170                [do not restrict auto-loaded files locations]),
 171     [if test "$with_auto_load_safe_path" = "no"; then
 172      with_auto_load_safe_path="/"
 173      fi],
 174 [with_auto_load_safe_path="$with_auto_load_dir"])
 175 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
 176 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
 177               [Directories safe to hold auto-loaded files.])
 178 AC_MSG_RESULT([$with_auto_load_safe_path])
 179
 180 AC_CONFIG_SUBDIRS(testsuite)
 181
 182 # Check whether to support alternative target configurations
 183 AC_ARG_ENABLE(targets,
 184 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
 185 [case "${enableval}" in
 186   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
 187             ;;
 188   no)       enable_targets= ;;
 189   *)        enable_targets=$enableval ;;
 190 esac])
 191
 192 # Check whether to enable 64-bit support on 32-bit hosts
 193 AC_ARG_ENABLE(64-bit-bfd,
 194 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
 195 [case "${enableval}" in
 196   yes)  want64=true  ;;
 197   no)   want64=false ;;
 198   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
 199 esac],[want64=false])dnl
 200
 201 # Provide defaults for some variables set by the per-host and per-target
 202 # configuration.
 203 gdb_host_obs=posix-hdep.o
 204
 205 if test "${target}" = "${host}"; then
 206   gdb_native=yes
 207 else
 208   gdb_native=no
 209 fi
 210
 211 . $srcdir/configure.host
 212
 213 # Add in the common host objects.
 214 . $srcdir/common/common.host
 215 gdb_host_obs="$gdb_host_obs $common_host_obs"
 216
 217 # Accumulate some settings from configure.tgt over all enabled targets
 218
 219 TARGET_OBS=
 220 all_targets=
 221 HAVE_NATIVE_GCORE_TARGET=
 222
 223 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 224 do
 225   if test "$targ_alias" = "all"; then
 226     all_targets=true
 227   else
 228     # Canonicalize the secondary target names.
 229     result=`$ac_config_sub $targ_alias 2>/dev/null`
 230     if test -n "$result"; then
 231         targ=$result
 232     else
 233         targ=$targ_alias
 234     fi
 235
 236     . ${srcdir}/configure.tgt
 237
 238     AS_IF([test -z "${gdb_target_obs}"],
 239       [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
 240
 241     # Target-specific object files
 242     for i in ${gdb_target_obs}; do
 243         case " $TARGET_OBS " in
 244         *" ${i} "*) ;;
 245         *)
 246           TARGET_OBS="$TARGET_OBS ${i}"
 247           ;;
 248         esac
 249     done
 250
 251     # Check whether this target needs 64-bit CORE_ADDR
 252     if test x${want64} = xfalse; then
 253       . ${srcdir}/../bfd/config.bfd
 254     fi
 255
 256     # Check whether this target is native and supports gcore.
 257     if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
 258        && $gdb_have_gcore; then
 259       HAVE_NATIVE_GCORE_TARGET=1
 260     fi
 261   fi
 262 done
 263
 264 if test x${all_targets} = xtrue; then
 265
 266   # We want all 64-bit targets if we either:
 267   #  - run on a 64-bit host  or
 268   #  - already require 64-bit support for some other target  or
 269   #  - the --enable-64-bit-bfd option was supplied
 270   # Otherwise we only support all 32-bit targets.
 271   #
 272   # NOTE: This test must be in sync with the corresponding
 273   #       tests in BFD!
 274
 275   if test x${want64} = xfalse; then
 276     AC_CHECK_SIZEOF(long)
 277     if test "x${ac_cv_sizeof_long}" = "x8"; then
 278       want64=true
 279     fi
 280   fi
 281   if test x${want64} = xtrue; then
 282     TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
 283   else
 284     TARGET_OBS='$(ALL_TARGET_OBS)'
 285   fi
 286 fi
 287
 288 AC_SUBST(TARGET_OBS)
 289 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
 290
 291 # For other settings, only the main target counts.
 292 gdb_sim=
 293 gdb_osabi=
 294 build_gdbserver=
 295 targ=$target; . ${srcdir}/configure.tgt
 296
 297 # Fetch the default architecture and default target vector from BFD.
 298 targ=$target; . $srcdir/../bfd/config.bfd
 299
 300 # We only want the first architecture, so strip off the others if
 301 # there is more than one.
 302 targ_archs=`echo $targ_archs | sed 's/ .*//'`
 303
 304 if test "x$targ_archs" != x; then
 305   AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
 306     [Define to BFD's default architecture. ])
 307 fi
 308 if test "x$targ_defvec" != x; then
 309   AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
 310     [Define to BFD's default target vector. ])
 311 fi
 312
 313 # The CLI cannot be disabled yet, but may be in the future.
 314
 315 # Enable CLI.
 316 AC_ARG_ENABLE(gdbcli,
 317 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
 318   [case $enableval in
 319     yes)
 320       ;;
 321     no)
 322       AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
 323     *)
 324       AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
 325   esac],
 326   [enable_gdbcli=yes])
 327 if test x"$enable_gdbcli" = xyes; then
 328   if test -d $srcdir/cli; then
 329     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
 330     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
 331     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
 332     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
 333   fi
 334 fi
 335
 336 # Enable MI.
 337 AC_ARG_ENABLE(gdbmi,
 338 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
 339   [case $enableval in
 340     yes | no)
 341       ;;
 342     *)
 343       AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
 344   esac],
 345   [enable_gdbmi=yes])
 346 if test x"$enable_gdbmi" = xyes; then
 347   if test -d $srcdir/mi; then
 348     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
 349     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
 350     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
 351     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
 352   fi
 353 fi
 354
 355 # Enable TUI.
 356 AC_ARG_ENABLE(tui,
 357 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
 358   [case $enableval in
 359     yes | no | auto)
 360       ;;
 361     *)
 362       AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
 363   esac],enable_tui=auto)
 364
 365 # Enable gdbtk.
 366 AC_ARG_ENABLE(gdbtk,
 367 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
 368   [case $enableval in
 369     yes | no)
 370       ;;
 371     *)
 372       AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
 373   esac],
 374   [if test -d $srcdir/gdbtk; then
 375     enable_gdbtk=yes
 376   else
 377     enable_gdbtk=no
 378   fi])
 379 # We unconditionally disable gdbtk tests on selected platforms.
 380 case $host_os in
 381   go32* | windows*)
 382     AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
 383     enable_gdbtk=no ;;
 384 esac
 385
 386 # Libunwind support for ia64.
 387
 388 AC_ARG_WITH(libunwind-ia64,
 389 AS_HELP_STRING([--with-libunwind-ia64],
 390                [use libunwind frame unwinding for ia64 targets]),,
 391             [with_libunwind_ia64=auto])
 392
 393 # Backward compatibility option.
 394 if test "${with_libunwind+set}" = set; then
 395   if test x"$with_libunwind_ia64" != xauto; then
 396     AC_MSG_ERROR(
 397       [option --with-libunwind is deprecated, use --with-libunwind-ia64])
 398   fi
 399   AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
 400   with_libunwind_ia64="$with_libunwind"
 401 fi
 402
 403 case "$with_libunwind_ia64" in
 404   yes | no)
 405     ;;
 406   auto)
 407     AC_CHECK_HEADERS(libunwind-ia64.h)
 408     with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
 409     ;;
 410   *)
 411     AC_MSG_ERROR(
 412       [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
 413     ;;
 414 esac
 415
 416 if test x"$with_libunwind_ia64" = xyes; then
 417   AC_CHECK_HEADERS(libunwind-ia64.h)
 418   if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
 419     AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
 420   fi
 421   CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
 422   CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
 423   CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
 424 fi
 425
 426 opt_curses=no
 427 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
 428
 429 prefer_curses=no
 430 if test "$opt_curses" = "yes"; then
 431   prefer_curses=yes
 432 fi
 433
 434 # Profiling support.
 435 AC_ARG_ENABLE(profiling,
 436 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
 437   [case $enableval in
 438     yes | no)
 439       ;;
 440     *)
 441       AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
 442   esac],
 443  [enable_profiling=no])
 444
 445 AC_CHECK_FUNCS(monstartup _mcleanup)
 446 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
 447 [AC_TRY_LINK(
 448 [#include <stdlib.h>
 449 extern char _etext;
 450 ],
 451 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
 452 if test $ac_cv_var__etext = yes; then
 453   AC_DEFINE(HAVE__ETEXT, 1,
 454             [Define to 1 if your system has the _etext variable. ])
 455 fi
 456 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
 457 [AC_TRY_LINK(
 458 [#include <stdlib.h>
 459 extern char etext;
 460 ],
 461 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
 462 if test $ac_cv_var_etext = yes; then
 463   AC_DEFINE(HAVE_ETEXT, 1,
 464             [Define to 1 if your system has the etext variable. ])
 465 fi
 466 if test "$enable_profiling" = yes ; then
 467   if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
 468     AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
 469   fi
 470   PROFILE_CFLAGS=-pg
 471   OLD_CFLAGS="$CFLAGS"
 472   CFLAGS="$CFLAGS $PROFILE_CFLAGS"
 473
 474   AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
 475     [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
 476      ac_cv_cc_supports_pg=no)])
 477
 478   if test $ac_cv_cc_supports_pg = no; then
 479     AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
 480   fi
 481
 482   CFLAGS="$OLD_CFLAGS"
 483 fi
 484
 485 ACX_PKGVERSION([GDB])
 486 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
 487 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
 488 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
 489
 490 # --------------------- #
 491 # Checks for programs.  #
 492 # --------------------- #
 493
 494 AC_PROG_AWK
 495 AC_PROG_INSTALL
 496 AC_PROG_LN_S
 497 AC_PROG_RANLIB
 498 AC_PROG_YACC
 499
 500 AC_CHECK_TOOL(AR, ar)
 501 AC_CHECK_TOOL(DLLTOOL, dlltool)
 502 AC_CHECK_TOOL(WINDRES, windres)
 503
 504 case $host_os in
 505   gnu*)
 506     # Needed for GNU Hurd hosts.
 507     AC_CHECK_TOOL(MIG, mig)
 508     if test x"$MIG" = x; then
 509       AC_MSG_ERROR([MIG not found but required for $host hosts])
 510     fi
 511     ;;
 512 esac
 513
 514 # ---------------------- #
 515 # Checks for libraries.  #
 516 # ---------------------- #
 517
 518 # We might need to link with -lm; most simulators need it.
 519 AC_CHECK_LIB(m, main)
 520
 521 # We need to link with -lw to get `wctype' on Solaris before Solaris
 522 # 2.6.  Solaris 2.6 and beyond have this function in libc, and have a
 523 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
 524 # is known to have this problem).  Therefore we avoid libw if we can.
 525 AC_CHECK_FUNC(wctype, [],
 526   [AC_CHECK_LIB(w, wctype)])
 527
 528 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 529 AC_SEARCH_LIBS(gethostbyname, nsl)
 530
 531 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 532 AC_SEARCH_LIBS(socketpair, socket)
 533
 534 # Link in zlib if we can.  This allows us to read compressed debug sections.
 535 AM_ZLIB
 536
 537 # On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
 538 # On GNU/kFreeBSD systems, FreeBSD libutil is renamed to libutil-freebsd.
 539 AC_SEARCH_LIBS(kinfo_getvmmap, util util-freebsd,
 540   [AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
 541             [Define to 1 if your system has the kinfo_getvmmap function. ])])
 542
 543 AM_ICONV
 544
 545 # GDB may fork/exec the iconv program to get the list of supported character
 546 # sets.  Allow the user to specify where to find it.
 547 # There are several factors affecting the choice of option name:
 548 # - There is already --with-libiconv-prefix but we can't use it, it specifies
 549 #   the build-time location of libiconv files.
 550 # - The program we need to find is iconv, which comes with glibc.  The user
 551 #   doesn't necessarily have libiconv installed.  Therefore naming this
 552 #   --with-libiconv-foo feels wrong.
 553 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
 554 #   defined to work on directories not files (though it really doesn't know
 555 #   the difference).
 556 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
 557 #   with --with-libiconv-prefix.
 558 # Putting these together is why the option name is --with-iconv-bin.
 559
 560 AC_ARG_WITH(iconv-bin,
 561 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
 562 [iconv_bin="${withval}"
 563  AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
 564                     [Path of directory of iconv program.])
 565  GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
 566 ])
 567
 568 # For the TUI, we need enhanced curses functionality.
 569 if test x"$enable_tui" != xno; then
 570   prefer_curses=yes
 571 fi
 572
 573 curses_found=no
 574 if test x"$prefer_curses" = xyes; then
 575   # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
 576   # curses library because the latter might not provide all the
 577   # functionality we need.  However, this leads to problems on systems
 578   # where the linker searches /usr/local/lib, but the compiler doesn't
 579   # search /usr/local/include, if ncurses is installed in /usr/local.  A
 580   # default installation of ncurses on alpha*-dec-osf* will lead to such
 581   # a situation.
 582   AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
 583
 584   if test "$ac_cv_search_waddstr" != no; then
 585     curses_found=yes
 586   fi
 587 fi
 588
 589 # Check whether we should enable the TUI, but only do so if we really
 590 # can.
 591 if test x"$enable_tui" != xno; then
 592   if test -d $srcdir/tui; then
 593     if test "$curses_found" != no; then
 594       CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
 595       CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
 596       CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
 597       ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
 598     else
 599       if test x"$enable_tui" = xyes; then
 600         AC_MSG_ERROR([no enhanced curses library found; disable TUI])
 601       else
 602         AC_MSG_WARN([no enhanced curses library found; disabling TUI])
 603       fi
 604     fi
 605   fi
 606 fi
 607
 608 # Since GDB uses Readline, we need termcap functionality.  In many
 609 # cases this will be provided by the curses library, but some systems
 610 # have a seperate termcap library, or no curses library at all.
 611
 612 case $host_os in
 613   cygwin*)
 614     if test -d $srcdir/libtermcap; then
 615       LIBS="../libtermcap/libtermcap.a $LIBS"
 616       ac_cv_search_tgetent="../libtermcap/libtermcap.a"
 617     fi ;;
 618   go32* | *djgpp*)
 619     ac_cv_search_tgetent="none required"
 620     ;;
 621 esac
 622
 623 # These are the libraries checked by Readline.
 624 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
 625
 626 if test "$ac_cv_search_tgetent" = no; then
 627   CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
 628 fi
 629
 630 AC_ARG_WITH([system-readline],
 631   [AS_HELP_STRING([--with-system-readline],
 632                   [use installed readline library])])
 633
 634 if test "$with_system_readline" = yes; then
 635   READLINE=-lreadline
 636   READLINE_DEPS=
 637   READLINE_CFLAGS=
 638   READLINE_TEXI_INCFLAG=
 639 else
 640   READLINE='$(READLINE_DIR)/libreadline.a'
 641   READLINE_DEPS='$(READLINE)'
 642   READLINE_CFLAGS='-I$(READLINE_SRC)/..'
 643   READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
 644 fi
 645 AC_SUBST(READLINE)
 646 AC_SUBST(READLINE_DEPS)
 647 AC_SUBST(READLINE_CFLAGS)
 648 AC_SUBST(READLINE_TEXI_INCFLAG)
 649
 650 # Generate jit-reader.h
 651
 652 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
 653 TARGET_PTR=
 654
 655 AC_CHECK_SIZEOF(unsigned long long)
 656 AC_CHECK_SIZEOF(unsigned long)
 657 AC_CHECK_SIZEOF(unsigned __int128)
 658
 659 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
 660   TARGET_PTR="unsigned long"
 661 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
 662   TARGET_PTR="unsigned long long"
 663 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
 664   TARGET_PTR="unsigned __int128"
 665 else
 666   TARGET_PTR="unsigned long"
 667 fi
 668
 669 AC_SUBST(TARGET_PTR)
 670 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
 671
 672 AC_SEARCH_LIBS(dlopen, dl)
 673
 674 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
 675                 [directory to load the JIT readers from],
 676                 [${libdir}/gdb])
 677
 678 AC_ARG_WITH(expat,
 679   AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
 680   [], [with_expat=auto])
 681 AC_MSG_CHECKING([whether to use expat])
 682 AC_MSG_RESULT([$with_expat])
 683
 684 if test "${with_expat}" = no; then
 685   AC_MSG_WARN([expat support disabled; some features may be unavailable.])
 686   HAVE_LIBEXPAT=no
 687 else
 688   AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
 689                         [XML_Parser p = XML_ParserCreate (0);])
 690   if test "$HAVE_LIBEXPAT" != yes; then
 691     if test "$with_expat" = yes; then
 692       AC_MSG_ERROR([expat is missing or unusable])
 693     else
 694       AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
 695     fi
 696   else
 697     save_LIBS=$LIBS
 698     LIBS="$LIBS $LIBEXPAT"
 699     AC_CHECK_FUNCS(XML_StopParser)
 700     LIBS=$save_LIBS
 701   fi
 702 fi
 703
 704 # --------------------- #
 705 # Check for libpython.  #
 706 # --------------------- #
 707
 708 dnl Utility to simplify finding libpython.
 709 dnl $1 = pythonX.Y
 710 dnl $2 = the shell variable to assign the result to
 711 dnl      If libpython is found we store $version here.
 712 dnl $3 = additional flags to add to CPPFLAGS
 713 dnl $4 = additional flags to add to LIBS
 714
 715 AC_DEFUN([AC_TRY_LIBPYTHON],
 716 [
 717   version=$1
 718   define([have_libpython_var],$2)
 719   new_CPPFLAGS=$3
 720   new_LIBS=$4
 721   AC_MSG_CHECKING([for ${version}])
 722   save_CPPFLAGS=$CPPFLAGS
 723   save_LIBS=$LIBS
 724   CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
 725   LIBS="$LIBS $new_LIBS"
 726   found_usable_python=no
 727   AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
 728                                  [[Py_Initialize ();]]),
 729                  [have_libpython_var=${version}
 730                   found_usable_python=yes
 731                   PYTHON_CPPFLAGS=$new_CPPFLAGS
 732                   PYTHON_LIBS=$new_LIBS])
 733   CPPFLAGS=$save_CPPFLAGS
 734   LIBS=$save_LIBS
 735   AC_MSG_RESULT([${found_usable_python}])
 736 ])
 737
 738 dnl There are several different values for --with-python:
 739 dnl
 740 dnl no -   Don't include python support.
 741 dnl yes -  Include python support, error if it's missing.
 742 dnl        If we find python in $PATH, use it to fetch configure options,
 743 dnl        otherwise assume the compiler can find it with no help from us.
 744 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 745 dnl auto - Same as "yes", but if python is missing from the system,
 746 dnl        fall back to "no".
 747 dnl /path/to/python/exec-prefix -
 748 dnl        Use the python located in this directory.
 749 dnl        If /path/to/python/exec-prefix/bin/python exists, use it to find
 750 dnl        the compilation parameters.  Otherwise use
 751 dnl        -I/path/to/python/exec-prefix/include,
 752 dnl        -L/path/to/python/exec-prefix/lib.
 753 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 754 dnl        NOTE: This case is historical.  It is what was done for 7.0/7.1
 755 dnl        but is deprecated.
 756 dnl /path/to/python/executable -
 757 dnl        Run python-config.py with this version of python to fetch the
 758 dnl        compilation parameters.
 759 dnl        NOTE: This needn't be the real python executable.
 760 dnl        In a cross-compilation scenario (build != host), this could be
 761 dnl        a shell script that provides what python-config.py provides for
 762 dnl        --ldflags, --includes, --exec-prefix.
 763 dnl python-executable -
 764 dnl        Find python-executable in $PATH, and then handle the same as
 765 dnl        /path/to/python/executable.
 766 dnl
 767 dnl If a python program is specified, it is used to run python-config.py and
 768 dnl is passed --ldflags, --includes, --exec-prefix.
 769
 770 AC_ARG_WITH(python,
 771   AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
 772   [], [with_python=auto])
 773 AC_MSG_CHECKING([whether to use python])
 774 AC_MSG_RESULT([$with_python])
 775
 776 if test "${with_python}" = no; then
 777   AC_MSG_WARN([python support disabled; some features may be unavailable.])
 778   have_libpython=no
 779 else
 780   case "${with_python}" in
 781   [[\\/]]* | ?:[[\\/]]*)
 782     if test -d ${with_python}; then
 783       # Assume the python binary is ${with_python}/bin/python.
 784       python_prog="${with_python}/bin/python"
 785       python_prefix=
 786       # If python does not exit ${with_python}/bin, then try in
 787       # ${with_python}.  On Windows/MinGW, this is where the Python
 788       # executable is.
 789       if test ! -x "${python_prog}"; then
 790         python_prog="${with_python}/python"
 791         python_prefix=
 792       fi
 793       if test ! -x "${python_prog}"; then
 794         # Fall back to gdb 7.0/7.1 behaviour.
 795         python_prog=missing
 796         python_prefix=${with_python}
 797       fi
 798     elif test -x "${with_python}"; then
 799       # While we can't run python compiled for $host (unless host == build),
 800       # the user could write a script that provides the needed information,
 801       # so we support that.
 802       python_prog=${with_python}
 803       python_prefix=
 804     else
 805       AC_ERROR(invalid value for --with-python)
 806     fi
 807     ;;
 808   */*)
 809     # Disallow --with-python=foo/bar.
 810     AC_ERROR(invalid value for --with-python)
 811     ;;
 812   *)
 813     # The user has either specified auto, yes, or the name of the python
 814     # program assumed to be in $PATH.
 815     python_prefix=
 816     case "${with_python}" in
 817     yes | auto)
 818       if test ${build} = ${host}; then
 819         AC_PATH_PROG(python_prog_path, python, missing)
 820         if test "${python_prog_path}" = missing; then
 821           python_prog=missing
 822         else
 823           python_prog=${python_prog_path}
 824         fi
 825       else
 826         # Not much we can do except assume the cross-compiler will find the
 827         # right files.
 828         python_prog=missing
 829       fi
 830       ;;
 831     *)
 832       # While we can't run python compiled for $host (unless host == build),
 833       # the user could write a script that provides the needed information,
 834       # so we support that.
 835       python_prog="${with_python}"
 836       AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
 837       if test "${python_prog_path}" = missing; then
 838         AC_ERROR(unable to find python program ${python_prog})
 839       fi
 840       ;;
 841     esac
 842   esac
 843
 844   if test "${python_prog}" != missing; then
 845     # We have a python program to use, but it may be too old.
 846     # Don't flag an error for --with-python=auto (the default).
 847     have_python_config=yes
 848     python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
 849     if test $? != 0; then
 850       have_python_config=failed
 851       if test "${with_python}" != auto; then
 852         AC_ERROR(failure running python-config --includes)
 853       fi
 854     fi
 855     python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
 856     if test $? != 0; then
 857       have_python_config=failed
 858       if test "${with_python}" != auto; then
 859         AC_ERROR(failure running python-config --ldflags)
 860       fi
 861     fi
 862     python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
 863     if test $? != 0; then
 864       have_python_config=failed
 865       if test "${with_python}" != auto; then
 866         AC_ERROR(failure running python-config --exec-prefix)
 867       fi
 868     fi
 869   else
 870     # We do not have a python executable we can use to determine where
 871     # to find the Python headers and libs.  We cannot guess the include
 872     # path from the python_prefix either, because that include path
 873     # depends on the Python version.  So, there is nothing much we can
 874     # do except assume that the compiler will be able to find those files.
 875     python_includes=
 876     python_libs=
 877     have_python_config=no
 878   fi
 879
 880   # If we have python-config, only try the configuration it provides.
 881   # Otherwise fallback on the old way of trying different versions of
 882   # python in turn.
 883
 884   have_libpython=no
 885   if test "${have_python_config}" = yes; then
 886     # Determine the Python version by extracting "-lpython<version>"
 887     # part of the python_libs. <version> is usually X.Y with X and Y
 888     # being decimal numbers, but can also be XY (seen on Windows).
 889     #
 890     # The extraction is performed using sed with a regular expression.
 891     # Initially, the regexp used was using the '?' quantifier to make
 892     # the dot in the version number optional.  Unfortunately, this
 893     # does not work with non-GNU versions of sed because, because of
 894     # what looks like a limitation (the '?' quantifier does not work
 895     # with back-references).  We work around this limitation by using
 896     # the '*' quantifier instead.  It means that, in theory, we might
 897     # match unexpected version strings such as "-lpython2..7", but
 898     # this seems unlikely in practice.  And even if that happens,
 899     # an error will be triggered later on, when checking that version
 900     # number.
 901     python_version=`echo " ${python_libs} " \
 902                          | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
 903     case "${python_version}" in
 904     python*)
 905       AC_TRY_LIBPYTHON(${python_version}, have_libpython,
 906                        ${python_includes}, ${python_libs})
 907       ;;
 908     *)
 909       AC_MSG_ERROR([unable to determine python version from ${python_libs}])
 910       ;;
 911     esac
 912   elif test "${have_python_config}" != failed; then
 913     if test "${have_libpython}" = no; then
 914       AC_TRY_LIBPYTHON(python2.7, have_libpython,
 915                        ${python_includes}, "${python_libs} -lpython2.7")
 916     fi
 917     if test "${have_libpython}" = no; then
 918       AC_TRY_LIBPYTHON(python2.6, have_libpython,
 919                        ${python_includes}, "${python_libs} -lpython2.6")
 920     fi
 921     if test ${have_libpython} = no; then
 922       AC_TRY_LIBPYTHON(python2.5, have_libpython,
 923                        ${python_includes}, "${python_libs} -lpython2.5")
 924     fi
 925     if test ${have_libpython} = no; then
 926       AC_TRY_LIBPYTHON(python2.4, have_libpython,
 927                        ${python_includes}, "${python_libs} -lpython2.4")
 928     fi
 929   fi
 930   if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
 931     AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
 932   elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
 933     AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
 934   elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
 935     AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
 936   elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
 937     AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
 938   fi
 939
 940   if test "${have_libpython}" = no; then
 941     case "${with_python}" in
 942     yes)
 943       AC_MSG_ERROR([python is missing or unusable])
 944       ;;
 945     auto)
 946       AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
 947       ;;
 948     *)
 949       AC_MSG_ERROR([no usable python found at ${with_python}])
 950       ;;
 951     esac
 952   else
 953     if test -n "${python_prefix}"; then
 954       AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
 955                          [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
 956       GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
 957     fi
 958   fi
 959 fi
 960
 961 if test "${have_libpython}" != no; then
 962   AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
 963   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
 964   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
 965   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
 966   CONFIG_INSTALL="$CONFIG_INSTALL install-python"
 967   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
 968
 969   # Flags needed to compile Python code (taken from python-config --cflags).
 970   # We cannot call python-config directly because it will output whatever was
 971   # used when compiling the Python interpreter itself, including flags which
 972   # would make the python-related objects be compiled differently from the
 973   # rest of GDB (e.g., -O2 and -fPIC).
 974   if test "${GCC}" = yes; then
 975     tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
 976   fi
 977
 978   if test "x${tentative_python_cflags}" != x; then
 979     AC_MSG_CHECKING(compiler flags for python code)
 980     for flag in ${tentative_python_cflags}; do
 981       # Check that the compiler accepts it
 982       saved_CFLAGS="$CFLAGS"
 983       CFLAGS="$CFLAGS $flag"
 984       AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
 985       CFLAGS="$saved_CFLAGS"
 986     done
 987     AC_MSG_RESULT(${PYTHON_CFLAGS})
 988   fi
 989
 990   # On x64 Windows, Python's include headers, and pyconfig.h in
 991   # particular, rely on MS_WIN64 macro to detect that it's a 64bit
 992   # version of Windows.  Unfortunately, MS_WIN64 is only defined if
 993   # _MSC_VER, a Microsoft-specific macro, is defined.  So, when
 994   # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
 995   # The issue was reported to the Python community, but still isn't
 996   # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
 997
 998   case "$gdb_host" in
 999     mingw64)
1000            if test "${GCC}" = yes; then
1001              CPPFLAGS="$CPPFLAGS -DMS_WIN64"
1002            fi
1003            ;;
1004   esac
1005
1006   # Note that "python -m threading" cannot be used to check for
1007   # threading support due to a bug in Python 2.7.3
1008   # (http://bugs.python.org/issue15567).
1009   AC_MSG_CHECKING(whether python supports threads)
1010   saved_CPPFLAGS="${CPPFLAGS}"
1011   CPPFLAGS="${PYTHON_CPPFLAGS}"
1012   # Note that the test is reversed so that python_has_threads=yes on
1013   # unexpected failures.
1014   AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1015 #include <Python.h>
1016 #ifdef WITH_THREAD
1017 # error
1018 #endif
1019   ]]), [python_has_threads=no], [python_has_threads=yes])
1020   AC_MSG_RESULT(${python_has_threads})
1021   CPPFLAGS="${saved_CPPFLAGS}"
1022 else
1023   # Even if Python support is not compiled in, we need to have this file
1024   # included so that the "python" command, et.al., still exists.
1025   CONFIG_OBS="$CONFIG_OBS python.o"
1026   CONFIG_SRCS="$CONFIG_SRCS python/python.c"
1027 fi
1028
1029 # Work around Python http://bugs.python.org/issue10112.  See also
1030 # http://bugs.python.org/issue11410, otherwise -Wl,--dynamic-list has
1031 # no effect.  Note that the only test after this that uses Python is
1032 # the -rdynamic/-Wl,--dynamic-list test, and we do want that one to be
1033 # run without -export-dynamic too.
1034 PYTHON_LIBS=`echo $PYTHON_LIBS | sed -e 's/-Xlinker -export-dynamic//'`
1035
1036 AC_SUBST(PYTHON_CFLAGS)
1037 AC_SUBST(PYTHON_CPPFLAGS)
1038 AC_SUBST(PYTHON_LIBS)
1039 AM_CONDITIONAL(HAVE_PYTHON, test "${have_libpython}" != no)
1040
1041 # -------------------- #
1042 # Check for libguile.  #
1043 # -------------------- #
1044
1045 dnl Utility to simplify finding libguile.
1046 dnl $1 = pkg-config-program
1047 dnl $2 = space-separate list of guile versions to try
1048 dnl $3 = yes|no, indicating whether to flag errors or ignore them
1049 dnl $4 = the shell variable to assign the result to
1050 dnl      If libguile is found we store "yes" here.
1051
1052 AC_DEFUN([AC_TRY_LIBGUILE],
1053 [
1054   pkg_config=$1
1055   guile_version_list=$2
1056   flag_errors=$3
1057   define([have_libguile_var],$4)
1058   found_usable_guile=checking
1059   AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1060   for guile_version in ${guile_version_list}; do
1061     ${pkg_config} --exists ${guile_version} 2>/dev/null
1062     if test $? != 0; then
1063       continue
1064     fi
1065     dnl pkg-config says the package exists, so if we get an error now,
1066     dnl that's bad.
1067     new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1068     if test $? != 0; then
1069       AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1070     fi
1071     new_LIBS=`${pkg_config} --libs ${guile_version}`
1072     if test $? != 0; then
1073       AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1074     fi
1075     dnl If we get this far, great.
1076     found_usable_guile=${guile_version}
1077     break
1078   done
1079   if test "${found_usable_guile}" = "checking"; then
1080     if test "${flag_errors}" = "yes"; then
1081       AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1082     else
1083       found_usable_guile=no
1084     fi
1085   fi
1086   dnl One final sanity check.
1087   dnl The user could have said --with-guile=python-2.7.
1088   if test "${found_usable_guile}" != no; then
1089     save_CPPFLAGS=$CPPFLAGS
1090     save_LIBS=$LIBS
1091     CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1092     LIBS="$LIBS $new_LIBS"
1093     AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "libguile.h"]],
1094                                    [[scm_init_guile ();]]),
1095                    [have_libguile_var=yes
1096                     GUILE_CPPFLAGS=$new_CPPFLAGS
1097                     GUILE_LIBS=$new_LIBS],
1098                    [found_usable_guile=no])
1099     dnl scm_set_automatic_finalization_enabled added in Guile 2.2.
1100     AC_CHECK_FUNC(scm_set_automatic_finalization_enabled,
1101       AC_DEFINE(HAVE_GUILE_MANUAL_FINALIZATION, 1,
1102                 [Define if Guile supports manual finalization.])
1103     )
1104     CPPFLAGS=$save_CPPFLAGS
1105     LIBS=$save_LIBS
1106     if test "${found_usable_guile}" = no; then
1107       if test "${flag_errors}" = yes; then
1108         AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1109       fi
1110     fi
1111   fi
1112   AC_MSG_RESULT([${found_usable_guile}])
1113 ])
1114
1115 dnl There are several different values for --with-guile:
1116 dnl
1117 dnl no -   Don't include guile support.
1118 dnl yes -  Include guile support, error if it's missing.
1119 dnl        The pkg-config program must be in $PATH.
1120 dnl auto - Same as "yes", but if guile is missing from the system,
1121 dnl        fall back to "no".
1122 dnl guile-version [guile-version-choice-2 ...] -
1123 dnl        A space-separated list of guile package versions to try.
1124 dnl        These are passed to pkg-config as-is.
1125 dnl        E.g., guile-2.0 or guile-2.2-uninstalled
1126 dnl        This requires making sure PKG_CONFIG_PATH is set appropriately.
1127 dnl /path/to/pkg-config -
1128 dnl        Use this pkg-config program.
1129 dnl        NOTE: This needn't be the "real" pkg-config program.
1130 dnl        It could be a shell script.  It is invoked as:
1131 dnl        pkg-config --exists $version
1132 dnl        pkg-config --cflags $version
1133 dnl        pkg-config --libs $version
1134 dnl        pkg-config --variable guild $version
1135 dnl        The script will be called with $version having each value in
1136 dnl        $try_guile_versions until --exists indicates success.
1137
1138 AC_ARG_WITH(guile,
1139   AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1140   [], [with_guile=auto])
1141 AC_MSG_CHECKING([whether to use guile])
1142 AC_MSG_RESULT([$with_guile])
1143
1144 dnl We check guile with pkg-config.
1145 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1146
1147 try_guile_versions="guile-2.2 guile-2.0"
1148 have_libguile=no
1149 case "${with_guile}" in
1150 no)
1151   AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1152   ;;
1153 auto)
1154   if test "${pkg_config_prog_path}" = "missing"; then
1155     AC_MSG_WARN([pkg-config not found, guile support disabled])
1156   else
1157     AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1158   fi
1159   ;;
1160 yes)
1161   if test "${pkg_config_prog_path}" = "missing"; then
1162     AC_MSG_ERROR([pkg-config not found])
1163   fi
1164   AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1165   ;;
1166 [[\\/]]* | ?:[[\\/]]*)
1167   if test -x "${with_guile}"; then
1168     AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1169   else
1170     AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1171   fi
1172   ;;
1173 "" | */*)
1174   # Disallow --with=guile="" and --with-guile=foo/bar.
1175   AC_MSG_ERROR([invalid value for --with-guile])
1176   ;;
1177 *)
1178   # A space separate list of guile versions to try, in order.
1179   if test "${pkg_config_prog_path}" = "missing"; then
1180     AC_MSG_ERROR([pkg-config not found])
1181   fi
1182   AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1183   ;;
1184 esac
1185
1186 if test "${have_libguile}" != no; then
1187   dnl Get the name of the 'guild' program.
1188   case "${with_guile}" in
1189   [[\\/]]* | ?:[[\\/]]*)
1190     GDB_GUILE_PROGRAM_NAMES(["${with_guile}"], ["${guile_version}"])
1191     ;;
1192   *)
1193     GDB_GUILE_PROGRAM_NAMES(["${pkg_config_prog_path}"], ["${guile_version}"])
1194     ;;
1195   esac
1196
1197   dnl Make sure guild can handle this host.
1198   GDB_TRY_GUILD([$srcdir/guile/lib/gdb/support.scm])
1199   dnl If not, disable guile support.
1200   if test "$ac_cv_guild_ok" = no; then
1201     have_libguile=no
1202     AC_MSG_WARN(disabling guile support, $GUILD fails compiling for $host)
1203   fi
1204 fi
1205
1206 if test "${have_libguile}" != no; then
1207   AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1208   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1209   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1210   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1211   CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1212   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1213
1214   dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1215   save_LIBS="$LIBS"
1216   save_CPPFLAGS="$CPPFLAGS"
1217   LIBS="$GUILE_LIBS"
1218   CPPFLAGS="$GUILE_CPPFLAGS"
1219   AC_CHECK_FUNCS([scm_new_smob])
1220   LIBS="$save_LIBS"
1221   CPPFLAGS="$save_CPPFLAGS"
1222 else
1223   # Even if Guile support is not compiled in, we need to have these files
1224   # included.
1225   CONFIG_OBS="$CONFIG_OBS guile.o"
1226   CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1227 fi
1228 AC_SUBST(GUILE_CPPFLAGS)
1229 AC_SUBST(GUILE_LIBS)
1230 AM_CONDITIONAL(HAVE_GUILE, test "${have_libguile}" != no)
1231
1232 # --------------------- #
1233 # Check for libmcheck.  #
1234 # --------------------- #
1235
1236 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1237 # but turn it off if Python is enabled with threads, since -lmcheck is
1238 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1239 # and for releases.
1240 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1241    && $development; then
1242   libmcheck_default=yes
1243 else
1244   libmcheck_default=no
1245 fi
1246 GDB_AC_LIBMCHECK(${libmcheck_default})
1247
1248 if test "$ENABLE_LIBMCHECK" = "yes" \
1249         -a "${have_libpython}" != "no" \
1250         -a "${python_has_threads}" = "yes" ; then
1251   AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1252 fi
1253
1254 AC_ARG_WITH(intel_pt,
1255   AS_HELP_STRING([--with-intel-pt], [include Intel Processor Trace support (auto/yes/no)]),
1256   [], [with_intel_pt=auto])
1257 AC_MSG_CHECKING([whether to use intel pt])
1258 AC_MSG_RESULT([$with_intel_pt])
1259
1260 if test "${with_intel_pt}" = no; then
1261   AC_MSG_WARN([Intel Processor Trace support disabled; some features may be unavailable.])
1262   HAVE_LIBIPT=no
1263 else
1264   AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1265 #include <linux/perf_event.h>
1266 #ifndef PERF_ATTR_SIZE_VER5
1267 # error
1268 #endif
1269   ]]), [perf_event=yes], [perf_event=no])
1270   if test "$perf_event" != yes; then
1271     if test "$with_intel_pt" = yes; then
1272       AC_MSG_ERROR([linux/perf_event.h missing or too old])
1273     else
1274       AC_MSG_WARN([linux/perf_event.h missing or too old; some features may be unavailable.])
1275     fi
1276   fi
1277
1278   AC_LIB_HAVE_LINKFLAGS([ipt], [], [#include "intel-pt.h"], [pt_insn_alloc_decoder (0);])
1279   if test "$HAVE_LIBIPT" != yes; then
1280     if test "$with_intel_pt" = yes; then
1281       AC_MSG_ERROR([libipt is missing or unusable])
1282     else
1283       AC_MSG_WARN([libipt is missing or unusable; some features may be unavailable.])
1284     fi
1285   fi
1286 fi
1287
1288 # ------------------------- #
1289 # Checks for header files.  #
1290 # ------------------------- #
1291
1292 AC_HEADER_STDC
1293 # elf_hp.h is for HP/UX 64-bit shared library support.
1294 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1295                   thread_db.h \
1296                   sys/fault.h \
1297                   sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1298                   sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1299                   sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1300                   termios.h termio.h \
1301                   sgtty.h elf_hp.h \
1302                   dlfcn.h])
1303 AC_CHECK_HEADERS(sys/proc.h, [], [],
1304 [#if HAVE_SYS_PARAM_H
1305 # include <sys/param.h>
1306 #endif
1307 ])
1308 AC_CHECK_HEADERS(sys/user.h, [], [],
1309 [#if HAVE_SYS_PARAM_H
1310 # include <sys/param.h>
1311 #endif
1312 ])
1313
1314 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
1315 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
1316 # think that we don't have <curses.h> if we're using GCC.
1317 case $host_os in
1318   solaris2.[[789]])
1319     if test "$GCC" = yes; then
1320       AC_DEFINE(_MSE_INT_H, 1,
1321         [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
1322    Solaris 2.[789] when using GCC. ])
1323     fi ;;
1324 esac
1325 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
1326 AC_CHECK_HEADERS(term.h, [], [],
1327 [#if HAVE_CURSES_H
1328 # include <curses.h>
1329 #endif
1330 ])
1331
1332 # ------------------------- #
1333 # Checks for declarations.  #
1334 # ------------------------- #
1335
1336 libiberty_INIT
1337
1338 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1339 AM_LC_MESSAGES
1340
1341 # ----------------------- #
1342 # Checks for structures.  #
1343 # ----------------------- #
1344
1345 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1346
1347 # ------------------ #
1348 # Checks for types.  #
1349 # ------------------ #
1350
1351 AC_CHECK_TYPES(socklen_t, [], [],
1352 [#include <sys/types.h>
1353 #include <sys/socket.h>
1354 ])
1355
1356 # ------------------------------------- #
1357 # Checks for compiler characteristics.  #
1358 # ------------------------------------- #
1359
1360 AC_C_CONST
1361 AC_C_INLINE
1362 AC_C_BIGENDIAN
1363
1364 # ------------------------------ #
1365 # Checks for library functions.  #
1366 # ------------------------------ #
1367
1368 AC_FUNC_MMAP
1369 AC_FUNC_VFORK
1370 AC_CHECK_FUNCS([getauxval getrusage getuid getgid \
1371                 pipe poll pread pread64 pwrite resize_term \
1372                 sbrk setpgid setpgrp setsid \
1373                 sigaction sigprocmask sigsetmask socketpair \
1374                 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1375                 setrlimit getrlimit posix_madvise waitpid \
1376                 ptrace64 sigaltstack mkdtemp setns])
1377 AM_LANGINFO_CODESET
1378 GDB_AC_COMMON
1379
1380 # Check the return and argument types of ptrace.
1381 GDB_AC_PTRACE
1382
1383 dnl AC_FUNC_SETPGRP does not work when cross compiling
1384 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1385 if test "$cross_compiling" = no; then
1386   AC_FUNC_SETPGRP
1387 else
1388   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1389     [AC_TRY_COMPILE([
1390 #include <unistd.h>
1391 ], [
1392   if (setpgrp(1,1) == -1)
1393     exit (0);
1394   else
1395     exit (1);
1396 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1397 if test $ac_cv_func_setpgrp_void = yes; then
1398   AC_DEFINE(SETPGRP_VOID, 1)
1399 fi
1400 fi
1401
1402 # Assume we'll default to using the included libiberty regex.
1403 gdb_use_included_regex=yes
1404
1405 # However, if the system regex is GNU regex, then default to *not*
1406 # using the included regex.
1407 AC_CACHE_CHECK(
1408   [for GNU regex],
1409   [gdb_cv_have_gnu_regex],
1410   [AC_TRY_COMPILE(
1411     [#include <gnu-versions.h>],
1412     [#define REGEX_INTERFACE_VERSION 1
1413 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1414 # error "Version mismatch"
1415 #endif],
1416     gdb_cv_have_gnu_regex=yes,
1417     gdb_cv_have_gnu_regex=no)])
1418 if test $gdb_cv_have_gnu_regex = yes; then
1419   gdb_use_included_regex=no
1420 fi
1421
1422 AC_ARG_WITH(included-regex,
1423   AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1424   gdb_with_regex=$withval,
1425   gdb_with_regex=$gdb_use_included_regex)
1426 if test "$gdb_with_regex" = yes; then
1427   AC_DEFINE(USE_INCLUDED_REGEX, 1,
1428     [Define to 1 if the regex included in libiberty should be used.])
1429 fi
1430
1431 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1432 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1433 [#include <sys/param.h>
1434 #include <sys/proc.h>
1435 ])
1436
1437 # See if <sys/lwp.h> defines `struct lwp`.
1438 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1439 [AC_TRY_COMPILE([#include <sys/param.h>
1440 #include <sys/lwp.h>], [struct lwp l;],
1441 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1442 if test $gdb_cv_struct_lwp = yes; then
1443   AC_DEFINE(HAVE_STRUCT_LWP, 1,
1444             [Define to 1 if your system has struct lwp.])
1445 fi
1446
1447 # See if <machine/reg.h> degines `struct reg'.
1448 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1449 [AC_TRY_COMPILE([#include <sys/types.h>
1450 #include <machine/reg.h>], [struct reg r;],
1451 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1452 if test $gdb_cv_struct_reg = yes; then
1453   AC_DEFINE(HAVE_STRUCT_REG, 1,
1454             [Define to 1 if your system has struct reg in <machine/reg.h>.])
1455 fi
1456
1457 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1458 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1459 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1460                  [#include <sys/types.h>
1461 #include <machine/reg.h>])
1462
1463 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1464 # Older amd64 Linux's don't have the fs_base and gs_base members of
1465 # `struct user_regs_struct'.
1466 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1467                  [], [], [#include <sys/user.h>])
1468
1469 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1470 AC_MSG_CHECKING(for PTRACE_GETREGS)
1471 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1472 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1473                 [PTRACE_GETREGS;],
1474                 [gdb_cv_have_ptrace_getregs=yes],
1475                 [gdb_cv_have_ptrace_getregs=no])])
1476 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1477 if test $gdb_cv_have_ptrace_getregs = yes; then
1478   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1479   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1480 fi
1481
1482 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1483 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1484 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1485 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1486                 [PTRACE_GETFPXREGS;],
1487                 [gdb_cv_have_ptrace_getfpxregs=yes],
1488                 [gdb_cv_have_ptrace_getfpxregs=no])])
1489 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1490 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1491   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1492   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1493 fi
1494
1495 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1496 AC_MSG_CHECKING(for PT_GETDBREGS)
1497 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1498 [AC_TRY_COMPILE([#include <sys/types.h>
1499 #include <sys/ptrace.h>],
1500                 [PT_GETDBREGS;],
1501                 [gdb_cv_have_pt_getdbregs=yes],
1502                 [gdb_cv_have_pt_getdbregs=no])])
1503 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1504 if test $gdb_cv_have_pt_getdbregs = yes; then
1505   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1506   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1507 fi
1508
1509 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1510 AC_MSG_CHECKING(for PT_GETXMMREGS)
1511 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1512 [AC_TRY_COMPILE([#include <sys/types.h>
1513 #include <sys/ptrace.h>],
1514                 [PT_GETXMMREGS;],
1515                 [gdb_cv_have_pt_getxmmregs=yes],
1516                 [gdb_cv_have_pt_getxmmregs=no])])
1517 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1518 if test $gdb_cv_have_pt_getxmmregs = yes; then
1519   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1520   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1521 fi
1522
1523 # See if <sys/ptrace.h> supports LWP names on FreeBSD
1524 # Older FreeBSD versions don't have the pl_tdname member of
1525 # `struct ptrace_lwpinfo'.
1526 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_tdname], [], [],
1527                  [#include <sys/ptrace.h>])
1528
1529 # See if <sys/ptrace.h> supports syscall fields on FreeBSD.  The
1530 # pl_syscall_code member of `struct ptrace_lwpinfo' was added in
1531 # FreeBSD 10.3.
1532 AC_CHECK_MEMBERS([struct ptrace_lwpinfo.pl_syscall_code], [], [],
1533                  [#include <sys/ptrace.h>])
1534
1535 # Detect which type of /proc is in use, such as for Solaris.
1536
1537 if test "${target}" = "${host}"; then
1538   case "${host}" in
1539   *-*-sysv4.2* | *-*-sysv5* )
1540       AC_DEFINE(NEW_PROC_API, 1,
1541       [Define if you want to use new multi-fd /proc interface.])
1542       ;;
1543   *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1544       AC_DEFINE(NEW_PROC_API, 1,
1545       [Define if you want to use new multi-fd /proc interface.])
1546       ;;
1547   mips-sgi-irix5*)
1548       # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1549       AC_DEFINE([_KMEMUSER], 1,
1550       [Define to 1 so <sys/proc.h> gets a definition of anon_hdl.  Works
1551        around a <sys/proc.h> problem on IRIX 5.])
1552       ;;
1553   esac
1554 fi
1555
1556 if test "$ac_cv_header_sys_procfs_h" = yes; then
1557   BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1558   BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1559   BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1560   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1561   BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1562   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1563   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1564   BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1565   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1566   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1567   BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1568
1569
1570   dnl Check for broken prfpregset_t type
1571
1572   dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1573   dnl prfpregset_t type (it's a typedef for the pointer to a struct
1574   dnl instead of the struct itself).  We detect this here, and work
1575   dnl around it in gdb_proc_service.h.
1576
1577   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1578     AC_MSG_CHECKING(whether prfpregset_t type is broken)
1579     AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1580       [AC_TRY_RUN([#include <sys/procfs.h>
1581        int main ()
1582        {
1583          if (sizeof (prfpregset_t) == sizeof (void *))
1584            return 1;
1585          return 0;
1586        }],
1587        gdb_cv_prfpregset_t_broken=no,
1588        gdb_cv_prfpregset_t_broken=yes,
1589        gdb_cv_prfpregset_t_broken=yes)])
1590     AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1591     if test $gdb_cv_prfpregset_t_broken = yes; then
1592       AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1593       [Define if the prfpregset_t type is broken.])
1594     fi
1595   fi
1596 fi
1597
1598 # Check if the compiler supports the `long long' type.
1599
1600 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1601                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1602 [[extern long long foo;]],
1603 [[switch (foo & 2) { case 0: return 1; }]])],
1604                                   gdb_cv_c_long_long=yes,
1605                                   gdb_cv_c_long_long=no)])
1606 if test $gdb_cv_c_long_long != yes; then
1607   # libdecnumber requires long long.
1608   AC_MSG_ERROR([Compiler must support long long for GDB.])
1609 fi
1610
1611 # Check if the compiler and runtime support printing long longs.
1612
1613 AC_CACHE_CHECK([for long long support in printf],
1614                gdb_cv_printf_has_long_long,
1615                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1616 [[char buf[32];
1617   long long l = 0;
1618   l = (l << 16) + 0x0123;
1619   l = (l << 16) + 0x4567;
1620   l = (l << 16) + 0x89ab;
1621   l = (l << 16) + 0xcdef;
1622   sprintf (buf, "0x%016llx", l);
1623   return (strcmp ("0x0123456789abcdef", buf));]])],
1624                               gdb_cv_printf_has_long_long=yes,
1625                               gdb_cv_printf_has_long_long=no,
1626                               gdb_cv_printf_has_long_long=no)])
1627 if test $gdb_cv_printf_has_long_long = yes; then
1628   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1629             [Define to 1 if the "%ll" format works to print long longs.])
1630 fi
1631
1632 # Check if the compiler and runtime support printing decfloats.
1633
1634 AC_CACHE_CHECK([for decfloat support in printf],
1635                gdb_cv_printf_has_decfloat,
1636                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1637 [[char buf[64];
1638   _Decimal32 d32 = 1.2345df;
1639   _Decimal64 d64 = 1.2345dd;
1640   _Decimal128 d128 = 1.2345dl;
1641   sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1642   return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1643                               gdb_cv_printf_has_decfloat=yes,
1644                               gdb_cv_printf_has_decfloat=no,
1645                               gdb_cv_printf_has_decfloat=no)])
1646 if test $gdb_cv_printf_has_decfloat = yes; then
1647   AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1648             [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1649 fi
1650
1651 # Check if the compiler supports the `long double' type.  We can't use
1652 # AC_C_LONG_DOUBLE because that one does additional checks on the
1653 # constants defined in <float.h> that fail on some systems,
1654 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1655
1656 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1657                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1658                                   gdb_cv_c_long_double=yes,
1659                                   gdb_cv_c_long_double=no)])
1660 if test $gdb_cv_c_long_double = yes; then
1661   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1662            [Define to 1 if the compiler supports long double.])
1663 fi
1664
1665 # Check if the compiler and runtime support printing long doubles.
1666
1667 AC_CACHE_CHECK([for long double support in printf],
1668                gdb_cv_printf_has_long_double,
1669                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1670 [[char buf[16];
1671   long double f = 3.141592653;
1672   sprintf (buf, "%Lg", f);
1673   return (strncmp ("3.14159", buf, 7));]])],
1674                               gdb_cv_printf_has_long_double=yes,
1675                               gdb_cv_printf_has_long_double=no,
1676                               gdb_cv_printf_has_long_double=no)])
1677 if test $gdb_cv_printf_has_long_double = yes; then
1678   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1679             [Define to 1 if the "%Lg" format works to print long doubles.])
1680 fi
1681
1682 # Check if the compiler and runtime support scanning long doubles.
1683
1684 AC_CACHE_CHECK([for long double support in scanf],
1685                gdb_cv_scanf_has_long_double,
1686                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1687 [[#include <stdio.h>]],
1688 [[char *buf = "3.141592653";
1689   long double f = 0;
1690   sscanf (buf, "%Lg", &f);
1691   return !(f > 3.14159 && f < 3.14160);]])],
1692                               gdb_cv_scanf_has_long_double=yes,
1693                               gdb_cv_scanf_has_long_double=no,
1694                               gdb_cv_scanf_has_long_double=no)])
1695 if test $gdb_cv_scanf_has_long_double = yes; then
1696   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1697             [Define to 1 if the "%Lg" format works to scan long doubles.])
1698 fi
1699
1700 case ${host_os} in
1701 aix*)
1702   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1703     SAVE_LDFLAGS=$LDFLAGS
1704
1705     case $GCC in
1706     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1707     *) gdb_cv_bigtoc=-bbigtoc ;;
1708     esac
1709
1710     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1711     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1712     LDFLAGS="${SAVE_LDFLAGS}"
1713   ])
1714   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1715   ;;
1716 esac
1717
1718 AC_MSG_CHECKING(for the dynamic export flag)
1719 dynamic_list=false
1720 if test "${gdb_native}" = yes; then
1721    # The dynamically loaded libthread_db needs access to symbols in the gdb
1722    # executable.  Older GNU ld supports --export-dynamic but --dynamic-list
1723    # may not be supported there.
1724    old_LDFLAGS="$LDFLAGS"
1725    # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1726    RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1727    LDFLAGS="$LDFLAGS $RDYNAMIC"
1728    if test "${have_libpython}" = no; then
1729      AC_TRY_LINK([], [], [dynamic_list=true])
1730    else
1731      # Workaround http://bugs.python.org/issue4434 where static
1732      # libpythonX.Y.a would get its symbols required for
1733      # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1734      # Problem does not happen for the recommended libpythonX.Y.so linkage.
1735
1736      # Note the workaround for Python
1737      # http://bugs.python.org/issue10112 earlier has removed
1738      # -export-dynamic from PYTHON_LIBS.  That's exactly what we want
1739      # here too, as otherwise it'd make this -Wl,--dynamic-list test
1740      # always pass.
1741      old_CFLAGS="$CFLAGS"
1742      CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1743      old_LIBS="$LIBS"
1744      LIBS="$LIBS $PYTHON_LIBS"
1745      old_CPPFLAGS="$CPPFLAGS"
1746      CPPFLAGS="$CPPFLAGS $PYTHON_CPPFLAGS"
1747      AC_RUN_IFELSE(
1748        AC_LANG_PROGRAM(
1749          [#include "Python.h"],
1750          [int err;
1751           Py_Initialize ();
1752           err = PyRun_SimpleString ("import itertools\n");
1753           Py_Finalize ();
1754           return err == 0 ? 0 : 1;]),
1755        [dynamic_list=true], [], [true])
1756      LIBS="$old_LIBS"
1757      CFLAGS="$old_CFLAGS"
1758      CPPFLAGS="$old_CPPFLAGS"
1759    fi
1760    LDFLAGS="$old_LDFLAGS"
1761 fi
1762 if $dynamic_list; then
1763   found="-Wl,--dynamic-list"
1764   RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1765 else
1766   found="-rdynamic"
1767   RDYNAMIC="-rdynamic"
1768 fi
1769 AC_SUBST(RDYNAMIC)
1770 AC_MSG_RESULT($found)
1771
1772 dnl For certain native configurations, we need to check whether thread
1773 dnl support can be built in or not.
1774 dnl
1775 dnl Note that we only want this if we are both native (host == target),
1776 dnl and not doing a canadian cross build (build == host).
1777
1778 if test ${build} = ${host} -a ${host} = ${target} ; then
1779    case ${host_os} in
1780    solaris*)
1781       # See if thread_db library is around for Solaris thread debugging.
1782       # Note that we must explicitly test for version 1 of the library
1783       # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1784       # the same API.
1785       AC_MSG_CHECKING(for Solaris thread debugging library)
1786       if test -f /usr/lib/libthread_db.so.1 ; then
1787          AC_MSG_RESULT(yes)
1788          AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1789          [Define if using Solaris thread debugging.])
1790          CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1791          CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1792          AC_CHECK_LIB(dl, dlopen)
1793          CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1794          # Sun randomly tweaked the prototypes in <proc_service.h>
1795          # at one point.
1796          AC_MSG_CHECKING(if <proc_service.h> is old)
1797          AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1798             AC_TRY_COMPILE([
1799                 #include <proc_service.h>
1800                 ps_err_e ps_pdwrite
1801                     (struct ps_prochandle*, psaddr_t, const void*, size_t);
1802             ],, gdb_cv_proc_service_is_old=no,
1803                 gdb_cv_proc_service_is_old=yes)
1804          ])
1805          AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1806          if test $gdb_cv_proc_service_is_old = yes; then
1807             AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1808             [Define if <proc_service.h> on solaris uses int instead of
1809              size_t, and assorted other type changes.])
1810          fi
1811       else
1812          AC_MSG_RESULT(no)
1813       fi
1814       ;;
1815    aix*)
1816       AC_MSG_CHECKING(for AiX thread debugging library)
1817       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1818                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1819                                    [#ifndef PTHDB_VERSION_3
1820                                     #error
1821                                     #endif],
1822                                    gdb_cv_have_aix_thread_debug=yes,
1823                                    gdb_cv_have_aix_thread_debug=no)])
1824       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1825       if test $gdb_cv_have_aix_thread_debug = yes; then
1826          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1827          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1828          LIBS="$LIBS -lpthdebug"
1829
1830          # Older versions of AIX do not provide the declaration for
1831          # the getthrds function (it appears that it was introduced
1832          # with AIX 6.x).
1833          AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1834       fi
1835       ;;
1836    esac
1837    AC_SUBST(CONFIG_LDFLAGS)
1838 fi
1839
1840 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1841 dnl other error codes.
1842 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1843    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1844                   gdb_cv_thread_db_h_has_td_notalloc,
1845      AC_TRY_COMPILE(
1846        [#include <thread_db.h>],
1847        [int i = TD_NOTALLOC;],
1848        gdb_cv_thread_db_h_has_td_notalloc=yes,
1849        gdb_cv_thread_db_h_has_td_notalloc=no
1850      )
1851    )
1852    AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1853                   gdb_cv_thread_db_h_has_td_version,
1854      AC_TRY_COMPILE(
1855        [#include <thread_db.h>],
1856        [int i = TD_VERSION;],
1857        gdb_cv_thread_db_h_has_td_version=yes,
1858        gdb_cv_thread_db_h_has_td_version=no
1859      )
1860    )
1861    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1862                   gdb_cv_thread_db_h_has_td_notls,
1863      AC_TRY_COMPILE(
1864        [#include <thread_db.h>],
1865        [int i = TD_NOTLS;],
1866        gdb_cv_thread_db_h_has_td_notls=yes,
1867        gdb_cv_thread_db_h_has_td_notls=no
1868      )
1869    )
1870 fi
1871 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1872   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1873             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1874 fi
1875 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1876   AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1877             [Define if <thread_db.h> has the TD_VERSION error code.])
1878 fi
1879 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1880   AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1881             [Define if <thread_db.h> has the TD_NOTLS error code.])
1882 fi
1883
1884 dnl Check if we can disable the virtual address space randomization.
1885 dnl The functionality of setarch -R.
1886 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1887 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1888 #      if !HAVE_DECL_ADDR_NO_RANDOMIZE
1889 #       define ADDR_NO_RANDOMIZE 0x0040000
1890 #      endif
1891        /* Test the flag could be set and stays set.  */
1892        personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1893        if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1894            return 1])])
1895 AC_RUN_IFELSE([PERSONALITY_TEST],
1896               [have_personality=true],
1897               [have_personality=false],
1898               [AC_LINK_IFELSE([PERSONALITY_TEST],
1899                               [have_personality=true],
1900                               [have_personality=false])])
1901 if $have_personality
1902 then
1903     AC_DEFINE([HAVE_PERSONALITY], 1,
1904               [Define if you support the personality syscall.])
1905 fi
1906
1907 dnl Set the host's .gdbinit filename.
1908 case $host_os in
1909   go32* | *djgpp*)
1910     gdbinit=gdb.ini
1911     ;;
1912   *)
1913     gdbinit=.gdbinit
1914     ;;
1915 esac
1916 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1917
1918 dnl Handle optional features that can be enabled.
1919
1920 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1921 # except that the argument to --with-sysroot is optional.
1922 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1923 if test "x$with_sysroot" = xyes; then
1924   with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1925 fi
1926 AC_ARG_WITH(sysroot,
1927   AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1928                  [search for usr/lib et al within DIR]),
1929   [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1930 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1931               [search for usr/lib et al within DIR])
1932 AC_SUBST(TARGET_SYSTEM_ROOT)
1933 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1934
1935 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1936     [automatically load a system-wide gdbinit file],
1937     [])
1938
1939 AM_GDB_WARNINGS
1940
1941 # In the Cygwin environment, we need some additional flags.
1942 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1943 [AC_EGREP_CPP(^lose$, [
1944 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1945 lose
1946 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1947
1948
1949 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1950 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1951 case ${host} in
1952   *go32* ) SER_HARDWIRE=ser-go32.o ;;
1953   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1954   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1955 esac
1956 AC_SUBST(SER_HARDWIRE)
1957
1958 # libreadline needs libuser32.a in a cygwin environment
1959 WIN32LIBS=
1960 if test x$gdb_cv_os_cygwin = xyes; then
1961     WIN32LIBS="-luser32"
1962     case "${target}" in
1963         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1964         ;;
1965     esac
1966 fi
1967
1968 # The ser-tcp.c module requires sockets.
1969 case ${host} in
1970   *mingw32*)
1971     AC_DEFINE(USE_WIN32API, 1,
1972               [Define if we should use the Windows API, instead of the
1973                POSIX API.  On Windows, we use the Windows API when
1974                building for MinGW, but the POSIX API when building
1975                for Cygwin.])
1976     WIN32LIBS="$WIN32LIBS -lws2_32"
1977     ;;
1978 esac
1979 AC_SUBST(WIN32LIBS)
1980
1981 # Add ELF support to GDB, but only if BFD includes ELF support.
1982 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1983                  [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1984 if test $gdb_cv_var_elf = yes; then
1985   CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o dtrace-probe.o"
1986   AC_DEFINE(HAVE_ELF, 1,
1987             [Define if ELF support should be included.])
1988   # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1989   if test "$plugins" = "yes"; then
1990     AC_SEARCH_LIBS(dlopen, dl)
1991   fi
1992 fi
1993
1994 # Add macho support to GDB, but only if BFD includes it.
1995 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1996                  [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1997 if test $gdb_cv_var_macho = yes; then
1998   CONFIG_OBS="$CONFIG_OBS machoread.o"
1999 fi
2000
2001 # Add any host-specific objects to GDB.
2002 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
2003
2004 # If building on ELF, look for lzma support for embedded compressed debug info.
2005 if test $gdb_cv_var_elf = yes; then
2006   AC_ARG_WITH(lzma,
2007     AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
2008     [], [with_lzma=auto])
2009   AC_MSG_CHECKING([whether to use lzma])
2010   AC_MSG_RESULT([$with_lzma])
2011
2012   if test "${with_lzma}" != no; then
2013     AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
2014                           [lzma_index_iter iter;
2015                            lzma_index_iter_init (&iter, 0);
2016                            lzma_mf_is_supported (LZMA_MF_HC3);])
2017     if test "$HAVE_LIBLZMA" != yes; then
2018       if test "$with_lzma" = yes; then
2019         AC_MSG_ERROR([missing liblzma for --with-lzma])
2020       fi
2021     fi
2022   fi
2023 fi
2024
2025 LIBGUI="../libgui/src/libgui.a"
2026 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
2027 AC_SUBST(LIBGUI)
2028 AC_SUBST(GUI_CFLAGS_X)
2029
2030 WIN32LDAPP=
2031 AC_SUBST(WIN32LIBS)
2032 AC_SUBST(WIN32LDAPP)
2033
2034 case "${host}" in
2035 *-*-cygwin* | *-*-mingw* )
2036     configdir="win"
2037     ;;
2038 *)
2039     configdir="unix"
2040     ;;
2041 esac
2042
2043 GDBTKLIBS=
2044 if test "${enable_gdbtk}" = "yes"; then
2045
2046     # Gdbtk must have an absolute path to srcdir in order to run
2047     # properly when not installed.
2048     here=`pwd`
2049     cd ${srcdir}
2050     GDBTK_SRC_DIR=`pwd`
2051     cd $here
2052
2053     SC_PATH_TCLCONFIG
2054
2055     # If $no_tk is nonempty, then we can't do Tk, and there is no
2056     # point to doing Tcl.
2057     SC_PATH_TKCONFIG
2058
2059     if test -z "${no_tcl}" -a -z "${no_tk}"; then
2060         SC_LOAD_TCLCONFIG
2061
2062         # Check for in-tree tcl
2063         here=`pwd`
2064         cd ${srcdir}/..
2065         topdir=`pwd`
2066         cd ${here}
2067
2068         intree="no"
2069         if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2070           intree="yes"
2071         fi
2072
2073         # Find Tcl private headers
2074         if test x"${intree}" = xno; then
2075           CY_AC_TCL_PRIVATE_HEADERS
2076           TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2077           TCL_LIBRARY="${TCL_LIB_SPEC}"
2078           TCL_DEPS=""
2079         else
2080           # If building tcl in the same src tree, private headers
2081           # are not needed, but we need to be sure to use the right
2082           # headers library
2083           TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2084           TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2085           TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2086         fi
2087         AC_SUBST(TCL_INCLUDE)
2088         AC_SUBST(TCL_LIBRARY)
2089         AC_SUBST(TCL_DEPS)
2090
2091         SC_LOAD_TKCONFIG
2092
2093         # Check for in-tree Tk
2094         intree="no"
2095         if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2096           intree="yes"
2097         fi
2098
2099         # Find Tk private headers
2100         if test x"${intree}" = xno; then
2101           CY_AC_TK_PRIVATE_HEADERS
2102           TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2103           TK_LIBRARY=${TK_LIB_SPEC}
2104           TK_DEPS=""
2105         else
2106           TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2107           TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2108           TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2109         fi
2110         AC_SUBST(TK_INCLUDE)
2111         AC_SUBST(TK_LIBRARY)
2112         AC_SUBST(TK_DEPS)
2113         AC_SUBST(TK_XINCLUDES)
2114
2115         ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2116
2117         # Include some libraries that Tcl and Tk want.
2118         TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2119         # Yes, the ordering seems wrong here.  But it isn't.
2120         # TK_LIBS is the list of libraries that need to be linked
2121         # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
2122         # were in LIBS then any link tests after this point would
2123         # try to include things like `$(LIBGUI)', which wouldn't work.
2124         GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2125
2126         CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2127         CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2128         CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2129         CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2130         CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2131         CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2132         CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2133
2134         if test x$gdb_cv_os_cygwin = xyes; then
2135           WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2136           WIN32LDAPP="-Wl,--subsystem,console"
2137           CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2138         fi
2139
2140         AC_CONFIG_SUBDIRS(gdbtk)
2141     fi
2142 fi
2143
2144 AC_SUBST(X_CFLAGS)
2145 AC_SUBST(X_LDFLAGS)
2146 AC_SUBST(X_LIBS)
2147 AC_SUBST(GDBTKLIBS)
2148 AC_SUBST(GDBTK_CFLAGS)
2149 AC_SUBST(GDBTK_SRC_DIR)
2150
2151 AC_PATH_X
2152
2153 # Unlike the sim directory, whether a simulator is linked is controlled by
2154 # presence of a gdb_sim definition in the target configure.tgt entry.
2155 # This code just checks for a few cases where we'd like to ignore those
2156 # definitions, even when they're present in the '.mt' file.  These cases
2157 # are when --disable-sim is specified, or if the simulator directory is
2158 # not part of the source tree.
2159 #
2160 AC_ARG_ENABLE(sim,
2161 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2162 [echo "enable_sim = $enable_sim";
2163  echo "enableval = ${enableval}";
2164  case "${enableval}" in
2165   yes) ignore_sim=false ;;
2166   no)  ignore_sim=true ;;
2167   *)   ignore_sim=false ;;
2168  esac],
2169 [ignore_sim=false])
2170
2171 if test ! -d "${srcdir}/../sim"; then
2172   ignore_sim=true
2173 fi
2174
2175 SIM=
2176 SIM_OBS=
2177 if test "${ignore_sim}" = "false"; then
2178   if test x"${gdb_sim}" != x ; then
2179     SIM="${gdb_sim}"
2180     SIM_OBS="remote-sim.o"
2181     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2182
2183     # Some tdep code should only be compiled in when the ppc sim is
2184     # built.  PR sim/13418.
2185     case $target in
2186       powerpc*-*-*)
2187         AC_DEFINE(WITH_PPC_SIM, 1, [Define if the PPC simulator is being linked in.])
2188         ;;
2189     esac
2190   fi
2191 fi
2192 AC_SUBST(SIM)
2193 AC_SUBST(SIM_OBS)
2194
2195 AC_SUBST(ENABLE_CFLAGS)
2196 AC_SUBST(PROFILE_CFLAGS)
2197
2198 AC_SUBST(CONFIG_OBS)
2199 AC_SUBST(CONFIG_DEPS)
2200 AC_SUBST(CONFIG_SRCS)
2201 AC_SUBST(CONFIG_ALL)
2202 AC_SUBST(CONFIG_CLEAN)
2203 AC_SUBST(CONFIG_INSTALL)
2204 AC_SUBST(CONFIG_UNINSTALL)
2205
2206 # List of host floatformats.
2207 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2208 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2209 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2210
2211 # target_subdir is used by the testsuite to find the target libraries.
2212 target_subdir=
2213 if test "${host}" != "${target}"; then
2214     target_subdir="${target_alias}/"
2215 fi
2216 AC_SUBST(target_subdir)
2217
2218 frags=
2219 if test "${gdb_native}" = "yes"; then
2220   host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2221   if test ! -f ${host_makefile_frag}; then
2222     AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2223   fi
2224   frags="$frags $host_makefile_frag"
2225 else
2226   host_makefile_frag=/dev/null
2227 fi
2228
2229 AC_SUBST_FILE(host_makefile_frag)
2230 AC_SUBST(frags)
2231
2232 changequote(,)dnl
2233 if test "${gdb_native}" = "yes"; then
2234 # We pick this up from the host configuration file (.mh) because we
2235 # do not have a native configuration Makefile fragment.
2236 nativefile=`sed -n '
2237 s/NAT_FILE[     ]*=[    ]*\([^  ]*\)/\1/p
2238 ' ${host_makefile_frag}`
2239 fi
2240 changequote([,])
2241
2242 if test x"${gdb_osabi}" != x ; then
2243     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2244                        [Define to the default OS ABI for this configuration.])
2245 fi
2246
2247 # Enable multi-ice-gdb-server.
2248 AC_ARG_ENABLE(multi-ice,
2249 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2250   [case $enableval in
2251     yes | no)
2252       ;;
2253     *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2254   esac])
2255 if test "x$enable_multi_ice" = xyes; then
2256    AC_CONFIG_SUBDIRS(multi-ice)
2257 fi
2258
2259 AC_ARG_ENABLE(gdbserver,
2260 AS_HELP_STRING([--enable-gdbserver],
2261                [automatically build gdbserver (yes/no/auto, default is auto)]),
2262 [case "${enableval}" in
2263   yes| no|auto) ;;
2264   *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2265 esac],[enable_gdbserver=auto])
2266
2267 # We only build gdbserver automatically in a native configuration, and
2268 # only if the user did not explicitly disable its build.
2269 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2270   AC_MSG_CHECKING(whether gdbserver is supported on this host)
2271   if test "x$build_gdbserver" = xyes; then
2272     AC_MSG_RESULT(yes)
2273     AC_CONFIG_SUBDIRS(gdbserver)
2274     gdbserver_build_enabled=yes
2275   else
2276     AC_MSG_RESULT(no)
2277   fi
2278 fi
2279
2280 # If the user explicitly request the gdbserver to be built, verify that
2281 # we were in fact able to enable it.
2282 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2283   AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2284 fi
2285
2286 # Check for babeltrace and babeltrace-ctf
2287 AC_ARG_WITH(babeltrace,
2288   AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2289   [], [with_babeltrace=auto])
2290 AC_MSG_CHECKING([whether to use babeltrace])
2291 AC_MSG_RESULT([$with_babeltrace])
2292
2293 if test "x$with_babeltrace" = "xno"; then
2294   AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2295 else
2296   # Append -Werror to CFLAGS so that configure can catch the warning
2297   # "assignment from incompatible pointer type", which is related to
2298   # the babeltrace change from 1.0.3 to 1.1.0.  Babeltrace 1.1.0 works
2299   # in GDB, while babeltrace 1.0.3 is broken.
2300   # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2301   # safe to save and restore CFLAGS here.
2302   saved_CFLAGS=$CFLAGS
2303   CFLAGS="$CFLAGS -Werror"
2304   AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2305                         [#include <babeltrace/babeltrace.h>
2306                          #include <babeltrace/ctf/events.h>
2307                          #include <babeltrace/ctf/iterator.h>],
2308                         [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2309                         struct bt_ctf_event *event = NULL;
2310                         const struct bt_definition *scope;
2311
2312                         pos->type = BT_SEEK_BEGIN;
2313                         bt_iter_set_pos (bt_ctf_get_iter (NULL), pos);
2314                         scope = bt_ctf_get_top_level_scope (event,
2315                                                            BT_STREAM_EVENT_HEADER);
2316                         bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2317                         ])
2318   CFLAGS=$saved_CFLAGS
2319
2320   if test "$HAVE_LIBBABELTRACE" != yes; then
2321      if test "$with_babeltrace" = yes; then
2322        AC_MSG_ERROR([babeltrace is missing or unusable])
2323      else
2324        AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2325      fi
2326   fi
2327 fi
2328
2329 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2330 # to an empty version.
2331
2332 files=
2333 links=
2334
2335 rm -f nm.h
2336 if test "${nativefile}" != ""; then
2337     case "${nativefile}" in
2338       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2339       * ) GDB_NM_FILE="${nativefile}"
2340     esac
2341     files="${files} ${GDB_NM_FILE}"
2342     links="${links} nm.h"
2343     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2344 fi
2345 AC_SUBST(GDB_NM_FILE)
2346
2347 AC_LINK_FILES($files, $links)
2348
2349 dnl Check for exe extension set on certain hosts (e.g. Win32)
2350 AC_EXEEXT
2351
2352 dnl  Detect the character set used by this host.
2353 dnl  At the moment, we just assume it's UTF-8.
2354 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2355           [Define to be a string naming the default host character set.])
2356
2357 if $development; then
2358   AC_DEFINE(GDB_SELF_TEST, 1,
2359             [Define if self-testing features should be enabled])
2360 fi
2361
2362 GDB_AC_TRANSFORM([gdb], [GDB_TRANSFORM_NAME])
2363 GDB_AC_TRANSFORM([gcore], [GCORE_TRANSFORM_NAME])
2364 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2365 AC_CONFIG_FILES([Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile],
2366 [
2367 case x$CONFIG_HEADERS in
2368 xconfig.h:config.in)
2369 echo > stamp-h ;;
2370 esac
2371 ])
2372
2373 AC_OUTPUT