gdb/configure.ac

   1 dnl Autoconf configure script for GDB, the GNU debugger.
   2 dnl Copyright (C) 1995-2013 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 . $srcdir/development.sh
  28
  29 AC_PROG_CC
  30 AC_USE_SYSTEM_EXTENSIONS
  31 ACX_LARGEFILE
  32 AM_PROG_CC_STDC
  33
  34 AC_CONFIG_AUX_DIR(..)
  35 AC_CANONICAL_SYSTEM
  36 AC_ARG_PROGRAM
  37
  38 # Dependency checking.
  39 ZW_CREATE_DEPDIR
  40 ZW_PROG_COMPILER_DEPENDENCIES([CC])
  41
  42 # Check for the 'make' the user wants to use.
  43 AC_CHECK_PROGS(MAKE, make)
  44 MAKE_IS_GNU=
  45 case "`$MAKE --version 2>&1 | sed 1q`" in
  46   *GNU*)
  47     MAKE_IS_GNU=yes
  48     ;;
  49 esac
  50 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
  51 AC_PROG_MAKE_SET
  52
  53 # Configure gnulib.  We need to build gnulib under some other
  54 # directory not "gnulib", to avoid the problem of both GDB and
  55 # GDBserver wanting to build it in the same directory, when building
  56 # in the source dir.
  57 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"])
  58
  59 dnl List of object files and targets accumulated by configure.
  60
  61 CONFIG_OBS=
  62 CONFIG_DEPS=
  63 CONFIG_SRCS=
  64 ENABLE_CFLAGS=
  65
  66 CONFIG_ALL=
  67 CONFIG_CLEAN=
  68 CONFIG_INSTALL=
  69 CONFIG_UNINSTALL=
  70
  71 dnl Set up for gettext.
  72 ZW_GNU_GETTEXT_SISTER_DIR
  73
  74 localedir='${datadir}/locale'
  75 AC_SUBST(localedir)
  76
  77 if test x"$USE_NLS" = xyes; then
  78    CONFIG_ALL="$CONFIG_ALL all-po"
  79    CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
  80    CONFIG_INSTALL="$CONFIG_INSTALL install-po"
  81    CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
  82 fi
  83
  84 GNULIB=build-gnulib/import
  85
  86 # For Makefile dependencies.
  87 GNULIB_STDINT_H=
  88 if test x"$STDINT_H" != x; then
  89   GNULIB_STDINT_H=$GNULIB/$STDINT_H
  90 fi
  91 AC_SUBST(GNULIB_STDINT_H)
  92
  93 PACKAGE=gdb
  94 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
  95 AC_SUBST(PACKAGE)
  96
  97 # We never need to detect it in this sub-configure.
  98 # But preserve it for config.status --recheck.
  99 AC_ARG_VAR(MAKEINFO,
 100   [Parent configure detects if it is of sufficient version.])
 101 AC_ARG_VAR(MAKEINFOFLAGS,
 102   [Parameters for MAKEINFO.])
 103
 104 MAKEINFO_EXTRA_FLAGS=""
 105 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
 106   [echo '@clicksequence{a @click{} b}' >conftest.texinfo
 107   if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
 108     gdb_cv_have_makeinfo_click=yes
 109   else
 110     gdb_cv_have_makeinfo_click=no
 111   fi])
 112 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
 113   MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
 114 fi
 115 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
 116
 117 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
 118     [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
 119     [${libdir}/debug])
 120
 121 # We can't pass paths as command line arguments.
 122 # Mingw32 tries to be clever and will convert the paths for us.
 123 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
 124 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
 125 # This breaks GDB's relocatable path conversions since paths passed in
 126 # config.h would not get so translated, the path prefixes no longer match.
 127 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
 128
 129 # GDB's datadir relocation
 130
 131 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
 132     [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
 133     [${datadir}/gdb])
 134
 135 AC_ARG_WITH(relocated-sources,
 136 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
 137 [reloc_srcdir="${withval}"
 138  AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
 139               [Relocated directory for source files. ])
 140 ])
 141
 142 AC_MSG_CHECKING([for default auto-load directory])
 143 AC_ARG_WITH(auto-load-dir,
 144 AS_HELP_STRING([--with-auto-load-dir=PATH],
 145   [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
 146   [with_auto_load_dir='$debugdir:$datadir/auto-load'])
 147 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
 148 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
 149               [Directories from which to load auto-loaded scripts.])
 150 AC_MSG_RESULT([$with_auto_load_dir])
 151
 152 AC_MSG_CHECKING([for default auto-load safe-path])
 153 AC_ARG_WITH(auto-load-safe-path,
 154 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
 155   [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
 156 AS_HELP_STRING([--without-auto-load-safe-path],
 157                [do not restrict auto-loaded files locations]),
 158     [if test "$with_auto_load_safe_path" = "no"; then
 159      with_auto_load_safe_path="/"
 160      fi],
 161 [with_auto_load_safe_path="$with_auto_load_dir"])
 162 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
 163 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
 164               [Directories safe to hold auto-loaded files.])
 165 AC_MSG_RESULT([$with_auto_load_safe_path])
 166
 167 AC_CONFIG_SUBDIRS(testsuite)
 168
 169 # Check whether to support alternative target configurations
 170 AC_ARG_ENABLE(targets,
 171 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
 172 [case "${enableval}" in
 173   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
 174             ;;
 175   no)       enable_targets= ;;
 176   *)        enable_targets=$enableval ;;
 177 esac])
 178
 179 # Check whether to enable 64-bit support on 32-bit hosts
 180 AC_ARG_ENABLE(64-bit-bfd,
 181 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
 182 [case "${enableval}" in
 183   yes)  want64=true  ;;
 184   no)   want64=false ;;
 185   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
 186 esac],[want64=false])dnl
 187
 188 # Provide defaults for some variables set by the per-host and per-target
 189 # configuration.
 190 gdb_host_obs=posix-hdep.o
 191
 192 if test "${target}" = "${host}"; then
 193   gdb_native=yes
 194 else
 195   gdb_native=no
 196 fi
 197
 198 . $srcdir/configure.host
 199
 200 # Accumulate some settings from configure.tgt over all enabled targets
 201
 202 TARGET_OBS=
 203 all_targets=
 204 HAVE_NATIVE_GCORE_TARGET=
 205
 206 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 207 do
 208   if test "$targ_alias" = "all"; then
 209     all_targets=true
 210   else
 211     # Canonicalize the secondary target names.
 212     result=`$ac_config_sub $targ_alias 2>/dev/null`
 213     if test -n "$result"; then
 214         targ=$result
 215     else
 216         targ=$targ_alias
 217     fi
 218
 219     . ${srcdir}/configure.tgt
 220
 221     AS_IF([test -z "${gdb_target_obs}"],
 222       [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
 223
 224     # Target-specific object files
 225     for i in ${gdb_target_obs}; do
 226         case " $TARGET_OBS " in
 227         *" ${i} "*) ;;
 228         *)
 229           TARGET_OBS="$TARGET_OBS ${i}"
 230           ;;
 231         esac
 232     done
 233
 234     # Check whether this target needs 64-bit CORE_ADDR
 235     if test x${want64} = xfalse; then
 236       . ${srcdir}/../bfd/config.bfd
 237     fi
 238
 239     # Check whether this target is native and supports gcore.
 240     if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
 241        && $gdb_have_gcore; then
 242       HAVE_NATIVE_GCORE_TARGET=1
 243     fi
 244   fi
 245 done
 246
 247 if test x${all_targets} = xtrue; then
 248
 249   # We want all 64-bit targets if we either:
 250   #  - run on a 64-bit host  or
 251   #  - already require 64-bit support for some other target  or
 252   #  - the --enable-64-bit-bfd option was supplied
 253   # Otherwise we only support all 32-bit targets.
 254   #
 255   # NOTE: This test must be in sync with the corresponding
 256   #       tests in BFD!
 257
 258   if test x${want64} = xfalse; then
 259     AC_CHECK_SIZEOF(long)
 260     if test "x${ac_cv_sizeof_long}" = "x8"; then
 261       want64=true
 262     fi
 263   fi
 264   if test x${want64} = xtrue; then
 265     TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
 266   else
 267     TARGET_OBS='$(ALL_TARGET_OBS)'
 268   fi
 269 fi
 270
 271 AC_SUBST(TARGET_OBS)
 272 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
 273
 274 # For other settings, only the main target counts.
 275 gdb_sim=
 276 gdb_osabi=
 277 build_gdbserver=
 278 targ=$target; . ${srcdir}/configure.tgt
 279
 280 # Fetch the default architecture and default target vector from BFD.
 281 targ=$target; . $srcdir/../bfd/config.bfd
 282
 283 # We only want the first architecture, so strip off the others if
 284 # there is more than one.
 285 targ_archs=`echo $targ_archs | sed 's/ .*//'`
 286
 287 if test "x$targ_archs" != x; then
 288   AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
 289     [Define to BFD's default architecture. ])
 290 fi
 291 if test "x$targ_defvec" != x; then
 292   AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
 293     [Define to BFD's default target vector. ])
 294 fi
 295
 296 # The CLI cannot be disabled yet, but may be in the future.
 297
 298 # Enable CLI.
 299 AC_ARG_ENABLE(gdbcli,
 300 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
 301   [case $enableval in
 302     yes)
 303       ;;
 304     no)
 305       AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
 306     *)
 307       AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
 308   esac],
 309   [enable_gdbcli=yes])
 310 if test x"$enable_gdbcli" = xyes; then
 311   if test -d $srcdir/cli; then
 312     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
 313     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
 314     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
 315     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
 316   fi
 317 fi
 318
 319 # Enable MI.
 320 AC_ARG_ENABLE(gdbmi,
 321 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
 322   [case $enableval in
 323     yes | no)
 324       ;;
 325     *)
 326       AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
 327   esac],
 328   [enable_gdbmi=yes])
 329 if test x"$enable_gdbmi" = xyes; then
 330   if test -d $srcdir/mi; then
 331     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
 332     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
 333     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
 334     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
 335   fi
 336 fi
 337
 338 # Enable TUI.
 339 AC_ARG_ENABLE(tui,
 340 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
 341   [case $enableval in
 342     yes | no | auto)
 343       ;;
 344     *)
 345       AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
 346   esac],enable_tui=auto)
 347
 348 # Enable gdbtk.
 349 AC_ARG_ENABLE(gdbtk,
 350 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
 351   [case $enableval in
 352     yes | no)
 353       ;;
 354     *)
 355       AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
 356   esac],
 357   [if test -d $srcdir/gdbtk; then
 358     enable_gdbtk=yes
 359   else
 360     enable_gdbtk=no
 361   fi])
 362 # We unconditionally disable gdbtk tests on selected platforms.
 363 case $host_os in
 364   go32* | windows*)
 365     AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
 366     enable_gdbtk=no ;;
 367 esac
 368
 369 # Libunwind support for ia64.
 370
 371 AC_ARG_WITH(libunwind-ia64,
 372 AS_HELP_STRING([--with-libunwind-ia64],
 373                [use libunwind frame unwinding for ia64 targets]),,
 374             [with_libunwind_ia64=auto])
 375
 376 # Backward compatibility option.
 377 if test "${with_libunwind+set}" = set; then
 378   if test x"$with_libunwind_ia64" != xauto; then
 379     AC_MSG_ERROR(
 380       [option --with-libunwind is deprecated, use --with-libunwind-ia64])
 381   fi
 382   AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
 383   with_libunwind_ia64="$with_libunwind"
 384 fi
 385
 386 case "$with_libunwind_ia64" in
 387   yes | no)
 388     ;;
 389   auto)
 390     AC_CHECK_HEADERS(libunwind-ia64.h)
 391     with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
 392     ;;
 393   *)
 394     AC_MSG_ERROR(
 395       [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
 396     ;;
 397 esac
 398
 399 if test x"$with_libunwind_ia64" = xyes; then
 400   AC_CHECK_HEADERS(libunwind-ia64.h)
 401   if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
 402     AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
 403   fi
 404   CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
 405   CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
 406   CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
 407 fi
 408
 409 opt_curses=no
 410 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
 411
 412 prefer_curses=no
 413 if test "$opt_curses" = "yes"; then
 414   prefer_curses=yes
 415 fi
 416
 417 # Profiling support.
 418 AC_ARG_ENABLE(profiling,
 419 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
 420   [case $enableval in
 421     yes | no)
 422       ;;
 423     *)
 424       AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
 425   esac],
 426  [enable_profiling=no])
 427
 428 AC_CHECK_FUNCS(monstartup _mcleanup)
 429 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
 430 [AC_TRY_LINK(
 431 [#include <stdlib.h>
 432 extern char _etext;
 433 ],
 434 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
 435 if test $ac_cv_var__etext = yes; then
 436   AC_DEFINE(HAVE__ETEXT, 1,
 437             [Define to 1 if your system has the _etext variable. ])
 438 fi
 439 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
 440 [AC_TRY_LINK(
 441 [#include <stdlib.h>
 442 extern char etext;
 443 ],
 444 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
 445 if test $ac_cv_var_etext = yes; then
 446   AC_DEFINE(HAVE_ETEXT, 1,
 447             [Define to 1 if your system has the etext variable. ])
 448 fi
 449 if test "$enable_profiling" = yes ; then
 450   if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
 451     AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
 452   fi
 453   PROFILE_CFLAGS=-pg
 454   OLD_CFLAGS="$CFLAGS"
 455   CFLAGS="$CFLAGS $PROFILE_CFLAGS"
 456
 457   AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
 458     [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
 459      ac_cv_cc_supports_pg=no)])
 460
 461   if test $ac_cv_cc_supports_pg = no; then
 462     AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
 463   fi
 464
 465   CFLAGS="$OLD_CFLAGS"
 466 fi
 467
 468 ACX_PKGVERSION([GDB])
 469 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
 470 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
 471 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
 472
 473 # --------------------- #
 474 # Checks for programs.  #
 475 # --------------------- #
 476
 477 AC_PROG_AWK
 478 AC_PROG_INSTALL
 479 AC_PROG_LN_S
 480 AC_PROG_RANLIB
 481 AC_PROG_YACC
 482
 483 AC_CHECK_TOOL(AR, ar)
 484 AC_CHECK_TOOL(DLLTOOL, dlltool)
 485 AC_CHECK_TOOL(WINDRES, windres)
 486
 487 case $host_os in
 488   gnu*)
 489     # Needed for GNU Hurd hosts.
 490     AC_CHECK_TOOL(MIG, mig)
 491     if test x"$MIG" = x; then
 492       AC_MSG_ERROR([MIG not found but required for $host hosts])
 493     fi
 494     ;;
 495 esac
 496
 497 # ---------------------- #
 498 # Checks for libraries.  #
 499 # ---------------------- #
 500
 501 # We might need to link with -lm; most simulators need it.
 502 AC_CHECK_LIB(m, main)
 503
 504 # We need to link with -lw to get `wctype' on Solaris before Solaris
 505 # 2.6.  Solaris 2.6 and beyond have this function in libc, and have a
 506 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
 507 # is known to have this problem).  Therefore we avoid libw if we can.
 508 AC_CHECK_FUNC(wctype, [],
 509   [AC_CHECK_LIB(w, wctype)])
 510
 511 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 512 AC_SEARCH_LIBS(gethostbyname, nsl)
 513
 514 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 515 AC_SEARCH_LIBS(socketpair, socket)
 516
 517 # Link in zlib if we can.  This allows us to read compressed debug sections.
 518 AM_ZLIB
 519
 520 # On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).
 521 AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl])
 522
 523 AM_ICONV
 524
 525 # GDB may fork/exec the iconv program to get the list of supported character
 526 # sets.  Allow the user to specify where to find it.
 527 # There are several factors affecting the choice of option name:
 528 # - There is already --with-libiconv-prefix but we can't use it, it specifies
 529 #   the build-time location of libiconv files.
 530 # - The program we need to find is iconv, which comes with glibc.  The user
 531 #   doesn't necessarily have libiconv installed.  Therefore naming this
 532 #   --with-libiconv-foo feels wrong.
 533 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
 534 #   defined to work on directories not files (though it really doesn't know
 535 #   the difference).
 536 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
 537 #   with --with-libiconv-prefix.
 538 # Putting these together is why the option name is --with-iconv-bin.
 539
 540 AC_ARG_WITH(iconv-bin,
 541 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
 542 [iconv_bin="${withval}"
 543  AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
 544                     [Path of directory of iconv program.])
 545  GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
 546 ])
 547
 548 # On alpha-osf, it appears that libtermcap and libcurses are not compatible.
 549 # There is a very specific comment in /usr/include/curses.h explaining that
 550 # termcap routines built into libcurses must not be used.
 551 #
 552 # The symptoms we observed so far is GDB unexpectedly changing
 553 # the terminal settings when tgetent is called - this is particularly
 554 # visible as the output is missing carriage returns, and so rapidly
 555 # becomes very hard to read.
 556 #
 557 # The readline configure script has already decided that libtermcap
 558 # was enough for its purposes, and so decided to build readline using
 559 # libtermcap.  Since the TUI mode requires curses, building GDB with
 560 # TUI enabled results in both libraries to be used at the same time,
 561 # which is not allowed.  This basically means that GDB with TUI is
 562 # broken on alpha-osf.
 563
 564 case $host_os in
 565   osf* )
 566     if test x"$enable_tui" = xyes; then
 567       AC_MSG_ERROR([Building GDB with TUI mode is not supported on this host])
 568     fi
 569     if test x"$enable_tui" = xauto; then
 570       enable_tui=no
 571     fi
 572     ;;
 573 esac
 574
 575 # For the TUI, we need enhanced curses functionality.
 576 if test x"$enable_tui" != xno; then
 577   prefer_curses=yes
 578 fi
 579
 580 curses_found=no
 581 if test x"$prefer_curses" = xyes; then
 582   # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
 583   # curses library because the latter might not provide all the
 584   # functionality we need.  However, this leads to problems on systems
 585   # where the linker searches /usr/local/lib, but the compiler doesn't
 586   # search /usr/local/include, if ncurses is installed in /usr/local.  A
 587   # default installation of ncurses on alpha*-dec-osf* will lead to such
 588   # a situation.
 589   AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
 590
 591   if test "$ac_cv_search_waddstr" != no; then
 592     curses_found=yes
 593   fi
 594 fi
 595
 596 # Check whether we should enable the TUI, but only do so if we really
 597 # can.
 598 if test x"$enable_tui" != xno; then
 599   if test -d $srcdir/tui; then
 600     if test "$curses_found" != no; then
 601       CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
 602       CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
 603       CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
 604       ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
 605     else
 606       if test x"$enable_tui" = xyes; then
 607         AC_MSG_ERROR([no enhanced curses library found; disable TUI])
 608       else
 609         AC_MSG_WARN([no enhanced curses library found; disabling TUI])
 610       fi
 611     fi
 612   fi
 613 fi
 614
 615 # Since GDB uses Readline, we need termcap functionality.  In many
 616 # cases this will be provided by the curses library, but some systems
 617 # have a seperate termcap library, or no curses library at all.
 618
 619 case $host_os in
 620   cygwin*)
 621     if test -d $srcdir/libtermcap; then
 622       LIBS="../libtermcap/libtermcap.a $LIBS"
 623       ac_cv_search_tgetent="../libtermcap/libtermcap.a"
 624     fi ;;
 625   go32* | *djgpp*)
 626     ac_cv_search_tgetent="none required"
 627     ;;
 628   *mingw32*)
 629     ac_cv_search_tgetent="none required"
 630     CONFIG_OBS="$CONFIG_OBS windows-termcap.o"
 631     ;;
 632 esac
 633
 634 # These are the libraries checked by Readline.
 635 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
 636
 637 if test "$ac_cv_search_tgetent" = no; then
 638   AC_MSG_ERROR([no termcap library found])
 639 fi
 640
 641 AC_ARG_WITH([system-readline],
 642   [AS_HELP_STRING([--with-system-readline],
 643                   [use installed readline library])])
 644
 645 if test "$with_system_readline" = yes; then
 646   READLINE=-lreadline
 647   READLINE_DEPS=
 648   READLINE_CFLAGS=
 649   READLINE_TEXI_INCFLAG=
 650 else
 651   READLINE='$(READLINE_DIR)/libreadline.a'
 652   READLINE_DEPS='$(READLINE)'
 653   READLINE_CFLAGS='-I$(READLINE_SRC)/..'
 654   READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
 655 fi
 656 AC_SUBST(READLINE)
 657 AC_SUBST(READLINE_DEPS)
 658 AC_SUBST(READLINE_CFLAGS)
 659 AC_SUBST(READLINE_TEXI_INCFLAG)
 660
 661 # Generate jit-reader.h
 662
 663 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
 664 TARGET_PTR=
 665
 666 AC_CHECK_SIZEOF(unsigned long long)
 667 AC_CHECK_SIZEOF(unsigned long)
 668 AC_CHECK_SIZEOF(unsigned __int128)
 669
 670 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
 671   TARGET_PTR="unsigned long"
 672 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
 673   TARGET_PTR="unsigned long long"
 674 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
 675   TARGET_PTR="unsigned __int128"
 676 else
 677   TARGET_PTR="unsigned long"
 678 fi
 679
 680 AC_SUBST(TARGET_PTR)
 681 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
 682
 683 AC_SEARCH_LIBS(dlopen, dl)
 684
 685 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
 686                 [directory to load the JIT readers from],
 687                 [${libdir}/gdb])
 688
 689 AC_ARG_WITH(expat,
 690   AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
 691   [], [with_expat=auto])
 692 AC_MSG_CHECKING([whether to use expat])
 693 AC_MSG_RESULT([$with_expat])
 694
 695 if test "${with_expat}" = no; then
 696   AC_MSG_WARN([expat support disabled; some features may be unavailable.])
 697   HAVE_LIBEXPAT=no
 698 else
 699   AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
 700                         [XML_Parser p = XML_ParserCreate (0);])
 701   if test "$HAVE_LIBEXPAT" != yes; then
 702     if test "$with_expat" = yes; then
 703       AC_MSG_ERROR([expat is missing or unusable])
 704     else
 705       AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
 706     fi
 707   else
 708     save_LIBS=$LIBS
 709     LIBS="$LIBS $LIBEXPAT"
 710     AC_CHECK_FUNCS(XML_StopParser)
 711     LIBS=$save_LIBS
 712   fi
 713 fi
 714
 715 dnl Utility to simplify finding libpython.
 716 dnl $1 = pythonX.Y
 717 dnl $2 = the shell variable to assign the result to
 718 dnl      If libpython is found we store $version here.
 719 dnl $3 = additional flags to add to CPPFLAGS
 720 dnl $4 = additional flags to add to LIBS
 721
 722 AC_DEFUN([AC_TRY_LIBPYTHON],
 723 [
 724   version=$1
 725   define([have_libpython_var],$2)
 726   new_CPPFLAGS=$3
 727   new_LIBS=$4
 728   AC_MSG_CHECKING([for ${version}])
 729   save_CPPFLAGS=$CPPFLAGS
 730   save_LIBS=$LIBS
 731   CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
 732   LIBS="$LIBS $new_LIBS"
 733   found_usable_python=no
 734   AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
 735                                  [[Py_Initialize ();]]),
 736                  [have_libpython_var=${version}
 737                   found_usable_python=yes
 738                   PYTHON_CPPFLAGS=$new_CPPFLAGS
 739                   PYTHON_LIBS=$new_LIBS])
 740   CPPFLAGS=$save_CPPFLAGS
 741   LIBS=$save_LIBS
 742   AC_MSG_RESULT([${found_usable_python}])
 743 ])
 744
 745 dnl There are several different values for --with-python:
 746 dnl
 747 dnl no -   Don't include python support.
 748 dnl yes -  Include python support, error if it's missing.
 749 dnl        If we find python in $PATH, use it to fetch configure options,
 750 dnl        otherwise assume the compiler can find it with no help from us.
 751 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 752 dnl auto - Same as "yes", but if python is missing from the system,
 753 dnl        fall back to "no".
 754 dnl /path/to/python/exec-prefix -
 755 dnl        Use the python located in this directory.
 756 dnl        If /path/to/python/exec-prefix/bin/python exists, use it to find
 757 dnl        the compilation parameters.  Otherwise use
 758 dnl        -I/path/to/python/exec-prefix/include,
 759 dnl        -L/path/to/python/exec-prefix/lib.
 760 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 761 dnl        NOTE: This case is historical.  It is what was done for 7.0/7.1
 762 dnl        but is deprecated.
 763 dnl /path/to/python/executable -
 764 dnl        Run python-config.py with this version of python to fetch the
 765 dnl        compilation parameters.
 766 dnl        NOTE: This needn't be the real python executable.
 767 dnl        In a cross-compilation scenario (build != host), this could be
 768 dnl        a shell script that provides what python-config.py provides for
 769 dnl        --ldflags, --includes, --exec-prefix.
 770 dnl python-executable -
 771 dnl        Find python-executable in $PATH, and then handle the same as
 772 dnl        /path/to/python/executable.
 773 dnl
 774 dnl If a python program is specified, it is used to run python-config.py and
 775 dnl is passed --ldflags, --includes, --exec-prefix.
 776
 777 AC_ARG_WITH(python,
 778   AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
 779   [], [with_python=auto])
 780 AC_MSG_CHECKING([whether to use python])
 781 AC_MSG_RESULT([$with_python])
 782
 783 if test "${with_python}" = no; then
 784   AC_MSG_WARN([python support disabled; some features may be unavailable.])
 785   have_libpython=no
 786 else
 787   case "${with_python}" in
 788   [[\\/]]* | ?:[[\\/]]*)
 789     if test -d ${with_python}; then
 790       # Assume the python binary is ${with_python}/bin/python.
 791       python_prog="${with_python}/bin/python"
 792       python_prefix=
 793       # If python does not exit ${with_python}/bin, then try in
 794       # ${with_python}.  On Windows/MinGW, this is where the Python
 795       # executable is.
 796       if test ! -x "${python_prog}"; then
 797         python_prog="${with_python}/python"
 798         python_prefix=
 799       fi
 800       if test ! -x "${python_prog}"; then
 801         # Fall back to gdb 7.0/7.1 behaviour.
 802         python_prog=missing
 803         python_prefix=${with_python}
 804       fi
 805     elif test -x "${with_python}"; then
 806       # While we can't run python compiled for $host (unless host == build),
 807       # the user could write a script that provides the needed information,
 808       # so we support that.
 809       python_prog=${with_python}
 810       python_prefix=
 811     else
 812       AC_ERROR(invalid value for --with-python)
 813     fi
 814     ;;
 815   */*)
 816     # Disallow --with-python=foo/bar.
 817     AC_ERROR(invalid value for --with-python)
 818     ;;
 819   *)
 820     # The user has either specified auto, yes, or the name of the python
 821     # program assumed to be in $PATH.
 822     python_prefix=
 823     case "${with_python}" in
 824     yes | auto)
 825       if test ${build} = ${host}; then
 826         AC_PATH_PROG(python_prog_path, python, missing)
 827         if test "${python_prog_path}" = missing; then
 828           python_prog=missing
 829         else
 830           python_prog=${python_prog_path}
 831         fi
 832       else
 833         # Not much we can do except assume the cross-compiler will find the
 834         # right files.
 835         python_prog=missing
 836       fi
 837       ;;
 838     *)
 839       # While we can't run python compiled for $host (unless host == build),
 840       # the user could write a script that provides the needed information,
 841       # so we support that.
 842       python_prog="${with_python}"
 843       AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
 844       if test "${python_prog_path}" = missing; then
 845         AC_ERROR(unable to find python program ${python_prog})
 846       fi
 847       ;;
 848     esac
 849   esac
 850
 851   if test "${python_prog}" != missing; then
 852     # We have a python program to use, but it may be too old.
 853     # Don't flag an error for --with-python=auto (the default).
 854     have_python_config=yes
 855     python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
 856     if test $? != 0; then
 857       have_python_config=failed
 858       if test "${with_python}" != auto; then
 859         AC_ERROR(failure running python-config --includes)
 860       fi
 861     fi
 862     python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
 863     if test $? != 0; then
 864       have_python_config=failed
 865       if test "${with_python}" != auto; then
 866         AC_ERROR(failure running python-config --ldflags)
 867       fi
 868     fi
 869     python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
 870     if test $? != 0; then
 871       have_python_config=failed
 872       if test "${with_python}" != auto; then
 873         AC_ERROR(failure running python-config --exec-prefix)
 874       fi
 875     fi
 876   else
 877     # We do not have a python executable we can use to determine where
 878     # to find the Python headers and libs.  We cannot guess the include
 879     # path from the python_prefix either, because that include path
 880     # depends on the Python version.  So, there is nothing much we can
 881     # do except assume that the compiler will be able to find those files.
 882     python_includes=
 883     python_libs=
 884     have_python_config=no
 885   fi
 886
 887   # If we have python-config, only try the configuration it provides.
 888   # Otherwise fallback on the old way of trying different versions of
 889   # python in turn.
 890
 891   have_libpython=no
 892   if test "${have_python_config}" = yes; then
 893     # Determine the Python version by extracting "-lpython<version>"
 894     # part of the python_libs. <version> is usually X.Y with X and Y
 895     # being decimal numbers, but can also be XY (seen on Windows).
 896     #
 897     # The extraction is performed using sed with a regular expression.
 898     # Initially, the regexp used was using the '?' quantifier to make
 899     # the dot in the version number optional.  Unfortunately, this
 900     # does not work with non-GNU versions of sed because, because of
 901     # what looks like a limitation (the '?' quantifier does not work
 902     # with back-references).  We work around this limitation by using
 903     # the '*' quantifier instead.  It means that, in theory, we might
 904     # match unexpected version strings such as "-lpython2..7", but
 905     # this seems unlikely in practice.  And even if that happens,
 906     # an error will be triggered later on, when checking that version
 907     # number.
 908     python_version=`echo " ${python_libs} " \
 909                          | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
 910     case "${python_version}" in
 911     python*)
 912       AC_TRY_LIBPYTHON(${python_version}, have_libpython,
 913                        ${python_includes}, ${python_libs})
 914       ;;
 915     *)
 916       AC_MSG_ERROR([unable to determine python version from ${python_libs}])
 917       ;;
 918     esac
 919   elif test "${have_python_config}" != failed; then
 920     if test "${have_libpython}" = no; then
 921       AC_TRY_LIBPYTHON(python2.7, have_libpython,
 922                        ${python_includes}, "${python_libs} -lpython2.7")
 923     fi
 924     if test "${have_libpython}" = no; then
 925       AC_TRY_LIBPYTHON(python2.6, have_libpython,
 926                        ${python_includes}, "${python_libs} -lpython2.6")
 927     fi
 928     if test ${have_libpython} = no; then
 929       AC_TRY_LIBPYTHON(python2.5, have_libpython,
 930                        ${python_includes}, "${python_libs} -lpython2.5")
 931     fi
 932     if test ${have_libpython} = no; then
 933       AC_TRY_LIBPYTHON(python2.4, have_libpython,
 934                        ${python_includes}, "${python_libs} -lpython2.4")
 935     fi
 936   fi
 937   if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
 938     AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
 939   elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
 940     AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
 941   elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
 942     AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
 943   elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
 944     AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
 945   fi
 946
 947   if test "${have_libpython}" = no; then
 948     case "${with_python}" in
 949     yes)
 950       AC_MSG_ERROR([python is missing or unusable])
 951       ;;
 952     auto)
 953       AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
 954       ;;
 955     *)
 956       AC_MSG_ERROR([no usable python found at ${with_python}])
 957       ;;
 958     esac
 959   else
 960     if test -n "${python_prefix}"; then
 961       AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
 962                          [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
 963       GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
 964     fi
 965   fi
 966 fi
 967
 968 if test "${have_libpython}" != no; then
 969   AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
 970   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
 971   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
 972   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
 973   CONFIG_INSTALL="$CONFIG_INSTALL install-python"
 974   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
 975
 976   # Flags needed to compile Python code (taken from python-config --cflags).
 977   # We cannot call python-config directly because it will output whatever was
 978   # used when compiling the Python interpreter itself, including flags which
 979   # would make the python-related objects be compiled differently from the
 980   # rest of GDB (e.g., -O2 and -fPIC).
 981   if test "${GCC}" = yes; then
 982     tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
 983   fi
 984
 985   if test "x${tentative_python_cflags}" != x; then
 986     AC_MSG_CHECKING(compiler flags for python code)
 987     for flag in ${tentative_python_cflags}; do
 988       # Check that the compiler accepts it
 989       saved_CFLAGS="$CFLAGS"
 990       CFLAGS="$CFLAGS $flag"
 991       AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
 992       CFLAGS="$saved_CFLAGS"
 993     done
 994     AC_MSG_RESULT(${PYTHON_CFLAGS})
 995   fi
 996
 997   # On IRIX, type siginfo is not defined.  Instead, sys/siginfo.h provides:
 998   #    #if _SGIAPI
 999   #    #define siginfo __siginfo
1000   #    #endif
1001   # The problem is that including Python causes some XOPEN macros to be
1002   # unilaterally defined, and that in turn causes _SGIAPI to evaluate
1003   # to false.  So, we work around this issue by defining siginfo ourself
1004   # though the command-line.
1005   #
1006   # On x64 Windows, Python's include headers, and pyconfig.h in
1007   # particular, rely on MS_WIN64 macro to detect that it's a 64bit
1008   # version of Windows.  Unfortunately, MS_WIN64 is only defined if
1009   # _MSC_VER, a Microsoft-specific macro, is defined.  So, when
1010   # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
1011   # The issue was reported to the Python community, but still isn't
1012   # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
1013
1014   case "$gdb_host" in
1015     irix*) if test "${GCC}" = yes; then
1016              CPPFLAGS="$CPPFLAGS -Dsiginfo=__siginfo"
1017            fi
1018            ;;
1019     mingw64)
1020            if test "${GCC}" = yes; then
1021              CPPFLAGS="$CPPFLAGS -DMS_WIN64"
1022            fi
1023            ;;
1024   esac
1025
1026   # Note that "python -m threading" cannot be used to check for
1027   # threading support due to a bug in Python 2.7.3
1028   # (http://bugs.python.org/issue15567).
1029   AC_MSG_CHECKING(whether python supports threads)
1030   saved_CPPFLAGS="${CPPFLAGS}"
1031   CPPFLAGS="${PYTHON_CPPFLAGS}"
1032   # Note that the test is reversed so that python_has_threads=yes on
1033   # unexpected failures.
1034   AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1035 #include <Python.h>
1036 #ifdef WITH_THREAD
1037 # error
1038 #endif
1039   ]]), [python_has_threads=no], [python_has_threads=yes])
1040   AC_MSG_RESULT(${python_has_threads})
1041   CPPFLAGS="${saved_CPPFLAGS}"
1042 else
1043   # Even if Python support is not compiled in, we need to have these files
1044   # included.
1045   CONFIG_OBS="$CONFIG_OBS python.o py-value.o py-prettyprint.o py-auto-load.o"
1046   CONFIG_SRCS="$CONFIG_SRCS python/python.c python/py-value.c \
1047         python/py-prettyprint.c python/py-auto-load.c"
1048 fi
1049 AC_SUBST(PYTHON_CFLAGS)
1050 AC_SUBST(PYTHON_CPPFLAGS)
1051 AC_SUBST(PYTHON_LIBS)
1052
1053 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1054 # but turn it off if Python is enabled with threads, since -lmcheck is
1055 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1056 # and for releases.
1057 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1058    && $development; then
1059   libmcheck_default=yes
1060 else
1061   libmcheck_default=no
1062 fi
1063 GDB_AC_LIBMCHECK(${libmcheck_default})
1064
1065 if test "$ENABLE_LIBMCHECK" = "yes" \
1066         -a "${have_libpython}" != "no" \
1067         -a "${python_has_threads}" = "yes" ; then
1068   AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1069 fi
1070
1071 # ------------------------- #
1072 # Checks for header files.  #
1073 # ------------------------- #
1074
1075 AC_HEADER_DIRENT
1076 AC_HEADER_STDC
1077 # elf_hp.h is for HP/UX 64-bit shared library support.
1078 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1079                   thread_db.h stddef.h \
1080                   stdlib.h sys/fault.h \
1081                   sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1082                   sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1083                   sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1084                   termios.h termio.h \
1085                   sgtty.h unistd.h elf_hp.h \
1086                   dlfcn.h])
1087 AC_CHECK_HEADERS(sys/proc.h, [], [],
1088 [#if HAVE_SYS_PARAM_H
1089 # include <sys/param.h>
1090 #endif
1091 ])
1092 AC_CHECK_HEADERS(sys/user.h, [], [],
1093 [#if HAVE_SYS_PARAM_H
1094 # include <sys/param.h>
1095 #endif
1096 ])
1097
1098 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
1099 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
1100 # think that we don't have <curses.h> if we're using GCC.
1101 case $host_os in
1102   solaris2.[[789]])
1103     if test "$GCC" = yes; then
1104       AC_DEFINE(_MSE_INT_H, 1,
1105         [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
1106    Solaris 2.[789] when using GCC. ])
1107     fi ;;
1108 esac
1109 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
1110 AC_CHECK_HEADERS(term.h, [], [],
1111 [#if HAVE_CURSES_H
1112 # include <curses.h>
1113 #endif
1114 ])
1115
1116 # ------------------------- #
1117 # Checks for declarations.  #
1118 # ------------------------- #
1119
1120 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1121 AM_LC_MESSAGES
1122
1123 # ----------------------- #
1124 # Checks for structures.  #
1125 # ----------------------- #
1126
1127 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1128
1129 # ------------------ #
1130 # Checks for types.  #
1131 # ------------------ #
1132
1133 AC_TYPE_SIGNAL
1134 AC_CHECK_TYPES(socklen_t, [], [],
1135 [#include <sys/types.h>
1136 #include <sys/socket.h>
1137 ])
1138
1139 # ------------------------------------- #
1140 # Checks for compiler characteristics.  #
1141 # ------------------------------------- #
1142
1143 AC_C_CONST
1144 AC_C_INLINE
1145 AC_C_BIGENDIAN
1146
1147 # ------------------------------ #
1148 # Checks for library functions.  #
1149 # ------------------------------ #
1150
1151 AC_FUNC_ALLOCA
1152 AC_FUNC_MMAP
1153 AC_FUNC_VFORK
1154 AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid getgid \
1155                 pipe poll pread pread64 pwrite readlink resize_term \
1156                 sbrk setpgid setpgrp setsid \
1157                 sigaction sigprocmask sigsetmask socketpair \
1158                 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1159                 setrlimit getrlimit posix_madvise waitpid lstat \
1160                 ptrace64])
1161 AM_LANGINFO_CODESET
1162 GDB_AC_COMMON
1163
1164 # Check the return and argument types of ptrace.  No canned test for
1165 # this, so roll our own.
1166 gdb_ptrace_headers='
1167 #if HAVE_SYS_TYPES_H
1168 # include <sys/types.h>
1169 #endif
1170 #if HAVE_SYS_PTRACE_H
1171 # include <sys/ptrace.h>
1172 #endif
1173 #if HAVE_UNISTD_H
1174 # include <unistd.h>
1175 #endif
1176 '
1177 # There is no point in checking if we don't have a prototype.
1178 AC_CHECK_DECLS(ptrace, [], [
1179   : ${gdb_cv_func_ptrace_ret='int'}
1180   : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1181 ], $gdb_ptrace_headers)
1182 # Check return type.  Varargs (used on GNU/Linux) conflict with the
1183 # empty argument list, so check for that explicitly.
1184 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
1185   AC_TRY_COMPILE($gdb_ptrace_headers,
1186     [extern long ptrace (enum __ptrace_request, ...);],
1187     gdb_cv_func_ptrace_ret='long',
1188     AC_TRY_COMPILE($gdb_ptrace_headers,
1189       [extern int ptrace ();],
1190       gdb_cv_func_ptrace_ret='int',
1191       gdb_cv_func_ptrace_ret='long')))
1192 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
1193   [Define as the return type of ptrace.])
1194 # Check argument types.
1195 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
1196   AC_TRY_COMPILE($gdb_ptrace_headers,
1197     [extern long ptrace (enum __ptrace_request, ...);],
1198     [gdb_cv_func_ptrace_args='int,int,long,long'],[
1199 for gdb_arg1 in 'int' 'long'; do
1200  for gdb_arg2 in 'pid_t' 'int' 'long'; do
1201   for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
1202    for gdb_arg4 in 'int' 'long' 'void *'; do
1203      AC_TRY_COMPILE($gdb_ptrace_headers, [
1204 extern $gdb_cv_func_ptrace_ret
1205   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
1206 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
1207     break 4;])
1208     for gdb_arg5 in 'int *' 'int' 'long'; do
1209      AC_TRY_COMPILE($gdb_ptrace_headers, [
1210 extern $gdb_cv_func_ptrace_ret
1211   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
1212 ], [
1213 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
1214     break 5;])
1215     done
1216    done
1217   done
1218  done
1219 done
1220 # Provide a safe default value.
1221 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1222 ])])
1223 ac_save_IFS=$IFS; IFS=','
1224 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
1225 IFS=$ac_save_IFS
1226 shift
1227 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
1228   [Define to the type of arg 3 for ptrace.])
1229 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG4, $[4],
1230   [Define to the type of arg 4 for ptrace.])
1231 if test -n "$[5]"; then
1232   AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
1233     [Define to the type of arg 5 for ptrace.])
1234 fi
1235
1236 dnl AC_FUNC_SETPGRP does not work when cross compiling
1237 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1238 if test "$cross_compiling" = no; then
1239   AC_FUNC_SETPGRP
1240 else
1241   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1242     [AC_TRY_COMPILE([
1243 #include <unistd.h>
1244 ], [
1245   if (setpgrp(1,1) == -1)
1246     exit (0);
1247   else
1248     exit (1);
1249 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1250 if test $ac_cv_func_setpgrp_void = yes; then
1251   AC_DEFINE(SETPGRP_VOID, 1)
1252 fi
1253 fi
1254
1255 # Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do
1256 # since sigsetjmp might only be defined as a macro.
1257 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
1258 [AC_TRY_COMPILE([
1259 #include <setjmp.h>
1260 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
1261 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
1262 if test $gdb_cv_func_sigsetjmp = yes; then
1263   AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
1264 fi
1265
1266 # Assume we'll default to using the included libiberty regex.
1267 gdb_use_included_regex=yes
1268
1269 # However, if the system regex is GNU regex, then default to *not*
1270 # using the included regex.
1271 AC_CACHE_CHECK(
1272   [for GNU regex],
1273   [gdb_cv_have_gnu_regex],
1274   [AC_TRY_COMPILE(
1275     [#include <gnu-versions.h>],
1276     [#define REGEX_INTERFACE_VERSION 1
1277 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1278 # error "Version mismatch"
1279 #endif],
1280     gdb_cv_have_gnu_regex=yes,
1281     gdb_cv_have_gnu_regex=no)])
1282 if test $gdb_cv_have_gnu_regex = yes; then
1283   gdb_use_included_regex=no
1284 fi
1285
1286 AC_ARG_WITH(included-regex,
1287   AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1288   gdb_with_regex=$withval,
1289   gdb_with_regex=$gdb_use_included_regex)
1290 if test "$gdb_with_regex" = yes; then
1291   AC_DEFINE(USE_INCLUDED_REGEX, 1,
1292     [Define to 1 if the regex included in libiberty should be used.])
1293 fi
1294
1295 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1296 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1297 [#include <sys/param.h>
1298 #include <sys/proc.h>
1299 ])
1300
1301 # See if <sys/lwp.h> defines `struct lwp`.
1302 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1303 [AC_TRY_COMPILE([#include <sys/param.h>
1304 #include <sys/lwp.h>], [struct lwp l;],
1305 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1306 if test $gdb_cv_struct_lwp = yes; then
1307   AC_DEFINE(HAVE_STRUCT_LWP, 1,
1308             [Define to 1 if your system has struct lwp.])
1309 fi
1310
1311 # See if <machine/reg.h> degines `struct reg'.
1312 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1313 [AC_TRY_COMPILE([#include <sys/types.h>
1314 #include <machine/reg.h>], [struct reg r;],
1315 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1316 if test $gdb_cv_struct_reg = yes; then
1317   AC_DEFINE(HAVE_STRUCT_REG, 1,
1318             [Define to 1 if your system has struct reg in <machine/reg.h>.])
1319 fi
1320
1321 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1322 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1323 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1324                  [#include <machine/reg.h>])
1325
1326 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1327 # Older amd64 Linux's don't have the fs_base and gs_base members of
1328 # `struct user_regs_struct'.
1329 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1330                  [], [], [#include <sys/user.h>])
1331
1332 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1333 AC_MSG_CHECKING(for PTRACE_GETREGS)
1334 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1335 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1336                 [PTRACE_GETREGS;],
1337                 [gdb_cv_have_ptrace_getregs=yes],
1338                 [gdb_cv_have_ptrace_getregs=no])])
1339 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1340 if test $gdb_cv_have_ptrace_getregs = yes; then
1341   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1342   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1343 fi
1344
1345 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1346 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1347 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1348 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1349                 [PTRACE_GETFPXREGS;],
1350                 [gdb_cv_have_ptrace_getfpxregs=yes],
1351                 [gdb_cv_have_ptrace_getfpxregs=no])])
1352 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1353 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1354   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1355   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1356 fi
1357
1358 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1359 AC_MSG_CHECKING(for PT_GETDBREGS)
1360 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1361 [AC_TRY_COMPILE([#include <sys/types.h>
1362 #include <sys/ptrace.h>],
1363                 [PT_GETDBREGS;],
1364                 [gdb_cv_have_pt_getdbregs=yes],
1365                 [gdb_cv_have_pt_getdbregs=no])])
1366 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1367 if test $gdb_cv_have_pt_getdbregs = yes; then
1368   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1369   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1370 fi
1371
1372 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1373 AC_MSG_CHECKING(for PT_GETXMMREGS)
1374 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1375 [AC_TRY_COMPILE([#include <sys/types.h>
1376 #include <sys/ptrace.h>],
1377                 [PT_GETXMMREGS;],
1378                 [gdb_cv_have_pt_getxmmregs=yes],
1379                 [gdb_cv_have_pt_getxmmregs=no])])
1380 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1381 if test $gdb_cv_have_pt_getxmmregs = yes; then
1382   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1383   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1384 fi
1385
1386 # Detect which type of /proc is in use, such as for Solaris.
1387
1388 if test "${target}" = "${host}"; then
1389   case "${host}" in
1390   *-*-sysv4.2* | *-*-sysv5* )
1391       AC_DEFINE(NEW_PROC_API, 1,
1392       [Define if you want to use new multi-fd /proc interface
1393        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
1394       ;;
1395   *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1396       AC_DEFINE(NEW_PROC_API, 1,
1397       [Define if you want to use new multi-fd /proc interface
1398        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
1399       ;;
1400   mips-sgi-irix5*)
1401       # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1402       AC_DEFINE([_KMEMUSER], 1,
1403       [Define to 1 so <sys/proc.h> gets a definition of anon_hdl.  Works
1404        around a <sys/proc.h> problem on IRIX 5.])
1405       ;;
1406   esac
1407 fi
1408
1409 if test "$ac_cv_header_sys_procfs_h" = yes; then
1410   BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1411   BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1412   BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1413   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1414   BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1415   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1416   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1417   BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1418   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1419   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1420   BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1421
1422
1423   dnl Check for broken prfpregset_t type
1424
1425   dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1426   dnl prfpregset_t type (it's a typedef for the pointer to a struct
1427   dnl instead of the struct itself).  We detect this here, and work
1428   dnl around it in gdb_proc_service.h.
1429
1430   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1431     AC_MSG_CHECKING(whether prfpregset_t type is broken)
1432     AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1433       [AC_TRY_RUN([#include <sys/procfs.h>
1434        int main ()
1435        {
1436          if (sizeof (prfpregset_t) == sizeof (void *))
1437            return 1;
1438          return 0;
1439        }],
1440        gdb_cv_prfpregset_t_broken=no,
1441        gdb_cv_prfpregset_t_broken=yes,
1442        gdb_cv_prfpregset_t_broken=yes)])
1443     AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1444     if test $gdb_cv_prfpregset_t_broken = yes; then
1445       AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1446       [Define if the prfpregset_t type is broken.])
1447     fi
1448   fi
1449 fi
1450
1451 # Check if the compiler supports the `long long' type.
1452
1453 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1454                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1455 [[extern long long foo;]],
1456 [[switch (foo & 2) { case 0: return 1; }]])],
1457                                   gdb_cv_c_long_long=yes,
1458                                   gdb_cv_c_long_long=no)])
1459 if test $gdb_cv_c_long_long != yes; then
1460   # libdecnumber requires long long.
1461   AC_MSG_ERROR([Compiler must support long long for GDB.])
1462 fi
1463
1464 # Check if the compiler and runtime support printing long longs.
1465
1466 AC_CACHE_CHECK([for long long support in printf],
1467                gdb_cv_printf_has_long_long,
1468                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1469 [[char buf[32];
1470   long long l = 0;
1471   l = (l << 16) + 0x0123;
1472   l = (l << 16) + 0x4567;
1473   l = (l << 16) + 0x89ab;
1474   l = (l << 16) + 0xcdef;
1475   sprintf (buf, "0x%016llx", l);
1476   return (strcmp ("0x0123456789abcdef", buf));]])],
1477                               gdb_cv_printf_has_long_long=yes,
1478                               gdb_cv_printf_has_long_long=no,
1479                               gdb_cv_printf_has_long_long=no)])
1480 if test $gdb_cv_printf_has_long_long = yes; then
1481   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1482             [Define to 1 if the "%ll" format works to print long longs.])
1483 fi
1484
1485 # Check if the compiler and runtime support printing decfloats.
1486
1487 AC_CACHE_CHECK([for decfloat support in printf],
1488                gdb_cv_printf_has_decfloat,
1489                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1490 [[char buf[64];
1491   _Decimal32 d32 = 1.2345df;
1492   _Decimal64 d64 = 1.2345dd;
1493   _Decimal128 d128 = 1.2345dl;
1494   sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1495   return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1496                               gdb_cv_printf_has_decfloat=yes,
1497                               gdb_cv_printf_has_decfloat=no,
1498                               gdb_cv_printf_has_decfloat=no)])
1499 if test $gdb_cv_printf_has_decfloat = yes; then
1500   AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1501             [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1502 fi
1503
1504 # Check if the compiler supports the `long double' type.  We can't use
1505 # AC_C_LONG_DOUBLE because that one does additional checks on the
1506 # constants defined in <float.h> that fail on some systems,
1507 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1508
1509 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1510                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1511                                   gdb_cv_c_long_double=yes,
1512                                   gdb_cv_c_long_double=no)])
1513 if test $gdb_cv_c_long_double = yes; then
1514   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1515            [Define to 1 if the compiler supports long double.])
1516 fi
1517
1518 # Check if the compiler and runtime support printing long doubles.
1519
1520 AC_CACHE_CHECK([for long double support in printf],
1521                gdb_cv_printf_has_long_double,
1522                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1523 [[char buf[16];
1524   long double f = 3.141592653;
1525   sprintf (buf, "%Lg", f);
1526   return (strncmp ("3.14159", buf, 7));]])],
1527                               gdb_cv_printf_has_long_double=yes,
1528                               gdb_cv_printf_has_long_double=no,
1529                               gdb_cv_printf_has_long_double=no)])
1530 if test $gdb_cv_printf_has_long_double = yes; then
1531   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1532             [Define to 1 if the "%Lg" format works to print long doubles.])
1533 fi
1534
1535 # Check if the compiler and runtime support scanning long doubles.
1536
1537 AC_CACHE_CHECK([for long double support in scanf],
1538                gdb_cv_scanf_has_long_double,
1539                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1540 [[#include <stdio.h>]],
1541 [[char *buf = "3.141592653";
1542   long double f = 0;
1543   sscanf (buf, "%Lg", &f);
1544   return !(f > 3.14159 && f < 3.14160);]])],
1545                               gdb_cv_scanf_has_long_double=yes,
1546                               gdb_cv_scanf_has_long_double=no,
1547                               gdb_cv_scanf_has_long_double=no)])
1548 if test $gdb_cv_scanf_has_long_double = yes; then
1549   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1550             [Define to 1 if the "%Lg" format works to scan long doubles.])
1551 fi
1552
1553 case ${host_os} in
1554 aix*)
1555   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1556     SAVE_LDFLAGS=$LDFLAGS
1557
1558     case $GCC in
1559     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1560     *) gdb_cv_bigtoc=-bbigtoc ;;
1561     esac
1562
1563     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1564     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1565     LDFLAGS="${SAVE_LDFLAGS}"
1566   ])
1567   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1568   ;;
1569 esac
1570
1571 AC_MSG_CHECKING(for the dynamic export flag)
1572 dynamic_list=false
1573 if test "${gdb_native}" = yes; then
1574    # The dynamically loaded libthread_db needs access to symbols in the gdb
1575    # executable.  Older GNU ld supports --export-dynamic but --dynamic-list
1576    # may not be supported there.
1577    old_LDFLAGS="$LDFLAGS"
1578    # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1579    RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1580    LDFLAGS="$LDFLAGS $RDYNAMIC"
1581    if test "${have_libpython}" = no; then
1582      AC_TRY_LINK([], [], [dynamic_list=true])
1583    else
1584      # Workaround http://bugs.python.org/issue4434 where static
1585      # libpythonX.Y.a would get its symbols required for
1586      # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1587      # Problem does not happen for the recommended libpythonX.Y.so linkage.
1588      old_CFLAGS="$CFLAGS"
1589      CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1590      old_LIBS="$LIBS"
1591      LIBS="$LIBS $PYTHON_LIBS"
1592      AC_RUN_IFELSE(
1593        AC_LANG_PROGRAM(
1594          [#include "]${have_libpython}[/Python.h"],
1595          [int err;
1596           Py_Initialize ();
1597           err = PyRun_SimpleString ("import itertools\n");
1598           Py_Finalize ();
1599           return err == 0 ? 0 : 1;]),
1600        [dynamic_list=true], [], [true])
1601      LIBS="$old_LIBS"
1602      CFLAGS="$old_CFLAGS"
1603    fi
1604    LDFLAGS="$old_LDFLAGS"
1605 fi
1606 if $dynamic_list; then
1607   found="-Wl,--dynamic-list"
1608   RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1609 else
1610   found="-rdynamic"
1611   RDYNAMIC="-rdynamic"
1612 fi
1613 AC_SUBST(RDYNAMIC)
1614 AC_MSG_RESULT($found)
1615
1616 dnl For certain native configurations, we need to check whether thread
1617 dnl support can be built in or not.
1618 dnl
1619 dnl Note that we only want this if we are both native (host == target),
1620 dnl and not doing a canadian cross build (build == host).
1621
1622 if test ${build} = ${host} -a ${host} = ${target} ; then
1623    case ${host_os} in
1624    solaris*)
1625       # See if thread_db library is around for Solaris thread debugging.
1626       # Note that we must explicitly test for version 1 of the library
1627       # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1628       # the same API.
1629       AC_MSG_CHECKING(for Solaris thread debugging library)
1630       if test -f /usr/lib/libthread_db.so.1 ; then
1631          AC_MSG_RESULT(yes)
1632          AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1633          [Define if using Solaris thread debugging.])
1634          CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1635          CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1636          AC_CHECK_LIB(dl, dlopen)
1637          CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1638          # Sun randomly tweaked the prototypes in <proc_service.h>
1639          # at one point.
1640          AC_MSG_CHECKING(if <proc_service.h> is old)
1641          AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1642             AC_TRY_COMPILE([
1643                 #include <proc_service.h>
1644                 ps_err_e ps_pdwrite
1645                     (struct ps_prochandle*, psaddr_t, const void*, size_t);
1646             ],, gdb_cv_proc_service_is_old=no,
1647                 gdb_cv_proc_service_is_old=yes)
1648          ])
1649          AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1650          if test $gdb_cv_proc_service_is_old = yes; then
1651             AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1652             [Define if <proc_service.h> on solaris uses int instead of
1653              size_t, and assorted other type changes.])
1654          fi
1655       else
1656          AC_MSG_RESULT(no)
1657       fi
1658       ;;
1659    aix*)
1660       AC_MSG_CHECKING(for AiX thread debugging library)
1661       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1662                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1663                                    [#ifndef PTHDB_VERSION_3
1664                                     #error
1665                                     #endif],
1666                                    gdb_cv_have_aix_thread_debug=yes,
1667                                    gdb_cv_have_aix_thread_debug=no)])
1668       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1669       if test $gdb_cv_have_aix_thread_debug = yes; then
1670          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1671          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1672          LIBS="$LIBS -lpthdebug"
1673
1674          # Older versions of AIX do not provide the declaration for
1675          # the getthrds function (it appears that it was introduced
1676          # with AIX 6.x).
1677          AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1678       fi
1679       ;;
1680    esac
1681    AC_SUBST(CONFIG_LDFLAGS)
1682 fi
1683
1684 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1685 dnl other error codes.
1686 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1687    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1688                   gdb_cv_thread_db_h_has_td_notalloc,
1689      AC_TRY_COMPILE(
1690        [#include <thread_db.h>],
1691        [int i = TD_NOTALLOC;],
1692        gdb_cv_thread_db_h_has_td_notalloc=yes,
1693        gdb_cv_thread_db_h_has_td_notalloc=no
1694      )
1695    )
1696    AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1697                   gdb_cv_thread_db_h_has_td_version,
1698      AC_TRY_COMPILE(
1699        [#include <thread_db.h>],
1700        [int i = TD_VERSION;],
1701        gdb_cv_thread_db_h_has_td_version=yes,
1702        gdb_cv_thread_db_h_has_td_version=no
1703      )
1704    )
1705    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1706                   gdb_cv_thread_db_h_has_td_notls,
1707      AC_TRY_COMPILE(
1708        [#include <thread_db.h>],
1709        [int i = TD_NOTLS;],
1710        gdb_cv_thread_db_h_has_td_notls=yes,
1711        gdb_cv_thread_db_h_has_td_notls=no
1712      )
1713    )
1714 fi
1715 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1716   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1717             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1718 fi
1719 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1720   AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1721             [Define if <thread_db.h> has the TD_VERSION error code.])
1722 fi
1723 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1724   AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1725             [Define if <thread_db.h> has the TD_NOTLS error code.])
1726 fi
1727
1728 dnl See if we have a sys/syscall header file that has __NR_tkill.
1729 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1730    AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1731                   gdb_cv_sys_syscall_h_has_tkill,
1732      AC_TRY_COMPILE(
1733        [#include <sys/syscall.h>],
1734        [int i = __NR_tkill;],
1735        gdb_cv_sys_syscall_h_has_tkill=yes,
1736        gdb_cv_sys_syscall_h_has_tkill=no
1737      )
1738    )
1739 fi
1740 dnl See if we can issue tkill syscall.
1741 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then
1742   AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1743 fi
1744
1745 dnl Check if we can disable the virtual address space randomization.
1746 dnl The functionality of setarch -R.
1747 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1748 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1749 #      if !HAVE_DECL_ADDR_NO_RANDOMIZE
1750 #       define ADDR_NO_RANDOMIZE 0x0040000
1751 #      endif
1752        /* Test the flag could be set and stays set.  */
1753        personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1754        if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1755            return 1])])
1756 AC_RUN_IFELSE([PERSONALITY_TEST],
1757               [have_personality=true],
1758               [have_personality=false],
1759               [AC_LINK_IFELSE([PERSONALITY_TEST],
1760                               [have_personality=true],
1761                               [have_personality=false])])
1762 if $have_personality
1763 then
1764     AC_DEFINE([HAVE_PERSONALITY], 1,
1765               [Define if you support the personality syscall.])
1766 fi
1767
1768 dnl Set the host's .gdbinit filename.
1769 case $host_os in
1770   go32* | *djgpp*)
1771     gdbinit=gdb.ini
1772     ;;
1773   *)
1774     gdbinit=.gdbinit
1775     ;;
1776 esac
1777 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1778
1779 dnl Handle optional features that can be enabled.
1780
1781 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1782 # except that the argument to --with-sysroot is optional.
1783 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1784 if test "x$with_sysroot" = xyes; then
1785   with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1786 fi
1787 AC_ARG_WITH(sysroot,
1788   AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1789                  [search for usr/lib et al within DIR]),
1790   [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1791 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1792               [search for usr/lib et al within DIR])
1793 AC_SUBST(TARGET_SYSTEM_ROOT)
1794 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1795
1796 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1797     [automatically load a system-wide gdbinit file],
1798     [])
1799
1800 AC_ARG_ENABLE(werror,
1801   AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
1802   [case "${enableval}" in
1803      yes | y) ERROR_ON_WARNING="yes" ;;
1804      no | n)  ERROR_ON_WARNING="no" ;;
1805      *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1806    esac])
1807
1808 # Enable -Werror by default when using gcc.  Turn it off for releases.
1809 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then
1810     ERROR_ON_WARNING=yes
1811 fi
1812
1813 WERROR_CFLAGS=""
1814 if test "${ERROR_ON_WARNING}" = yes ; then
1815     WERROR_CFLAGS="-Werror"
1816 fi
1817
1818 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
1819 -Wpointer-sign \
1820 -Wno-unused -Wunused-value -Wunused-function \
1821 -Wno-switch -Wno-char-subscripts -Wmissing-prototypes \
1822 -Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type \
1823 -Wold-style-declaration -Wold-style-definition"
1824
1825 # Enable -Wno-format by default when using gcc on mingw since many
1826 # GCC versions complain about %I64.
1827 case "${host}" in
1828   *-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;
1829   *) build_warnings="$build_warnings -Wformat-nonliteral" ;;
1830 esac
1831
1832 AC_ARG_ENABLE(build-warnings,
1833 AS_HELP_STRING([--enable-build-warnings], [enable build-time compiler warnings if gcc is used]),
1834 [case "${enableval}" in
1835   yes)  ;;
1836   no)   build_warnings="-w";;
1837   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1838         build_warnings="${build_warnings} ${t}";;
1839   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1840         build_warnings="${t} ${build_warnings}";;
1841   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1842 esac
1843 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1844   echo "Setting compiler warning flags = $build_warnings" 6>&1
1845 fi])dnl
1846 AC_ARG_ENABLE(gdb-build-warnings,
1847 AS_HELP_STRING([--enable-gdb-build-warnings], [enable GDB specific build-time compiler warnings if gcc is used]),
1848 [case "${enableval}" in
1849   yes)  ;;
1850   no)   build_warnings="-w";;
1851   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1852         build_warnings="${build_warnings} ${t}";;
1853   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1854         build_warnings="${t} ${build_warnings}";;
1855   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1856 esac
1857 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1858   echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
1859 fi])dnl
1860 WARN_CFLAGS=""
1861 if test "x${build_warnings}" != x -a "x$GCC" = xyes
1862 then
1863     AC_MSG_CHECKING(compiler warning flags)
1864     # Separate out the -Werror flag as some files just cannot be
1865     # compiled with it enabled.
1866     for w in ${build_warnings}; do
1867         case $w in
1868         -Werr*) WERROR_CFLAGS=-Werror ;;
1869         *) # Check that GCC accepts it
1870             saved_CFLAGS="$CFLAGS"
1871             CFLAGS="$CFLAGS $w"
1872             AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
1873             CFLAGS="$saved_CFLAGS"
1874         esac
1875     done
1876     AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
1877 fi
1878 AC_SUBST(WARN_CFLAGS)
1879 AC_SUBST(WERROR_CFLAGS)
1880
1881 # In the Cygwin environment, we need some additional flags.
1882 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1883 [AC_EGREP_CPP(lose, [
1884 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1885 lose
1886 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1887
1888
1889 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1890 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1891 case ${host} in
1892   *go32* ) SER_HARDWIRE=ser-go32.o ;;
1893   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1894   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1895 esac
1896 AC_SUBST(SER_HARDWIRE)
1897
1898 # libreadline needs libuser32.a in a cygwin environment
1899 WIN32LIBS=
1900 if test x$gdb_cv_os_cygwin = xyes; then
1901     WIN32LIBS="-luser32"
1902     case "${target}" in
1903         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1904         ;;
1905     esac
1906 fi
1907
1908 # The ser-tcp.c module requires sockets.
1909 case ${host} in
1910   *mingw32*)
1911     AC_DEFINE(USE_WIN32API, 1,
1912               [Define if we should use the Windows API, instead of the
1913                POSIX API.  On Windows, we use the Windows API when
1914                building for MinGW, but the POSIX API when building
1915                for Cygwin.])
1916     WIN32LIBS="$WIN32LIBS -lws2_32"
1917     ;;
1918 esac
1919 AC_SUBST(WIN32LIBS)
1920
1921 # Add ELF support to GDB, but only if BFD includes ELF support.
1922 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1923                  [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1924 if test $gdb_cv_var_elf = yes; then
1925   CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o"
1926   AC_DEFINE(HAVE_ELF, 1,
1927             [Define if ELF support should be included.])
1928   # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1929   if test "$plugins" = "yes"; then
1930     AC_SEARCH_LIBS(dlopen, dl)
1931   fi
1932 fi
1933
1934 # Add macho support to GDB, but only if BFD includes it.
1935 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1936                  [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1937 if test $gdb_cv_var_macho = yes; then
1938   CONFIG_OBS="$CONFIG_OBS machoread.o"
1939 fi
1940
1941 # Add SOM support to GDB, but only if BFD includes it.
1942 GDB_AC_CHECK_BFD([for SOM support in BFD], gdb_cv_var_som,
1943                  [bfd_som_attach_aux_hdr (NULL, 0, NULL)], som.h)
1944 if test $gdb_cv_var_som = yes; then
1945   CONFIG_OBS="$CONFIG_OBS somread.o"
1946 fi
1947
1948 # Add any host-specific objects to GDB.
1949 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1950
1951 # If building on ELF, look for lzma support for embedded compressed debug info.
1952 if test $gdb_cv_var_elf = yes; then
1953   AC_ARG_WITH(lzma,
1954     AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1955     [], [with_lzma=auto])
1956   AC_MSG_CHECKING([whether to use lzma])
1957   AC_MSG_RESULT([$with_lzma])
1958
1959   if test "${with_lzma}" != no; then
1960     AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1961                           [lzma_index_iter iter;
1962                            lzma_index_iter_init (&iter, 0);
1963                            lzma_mf_is_supported (LZMA_MF_HC3);])
1964     if test "$HAVE_LIBLZMA" != yes; then
1965       if test "$with_lzma" = yes; then
1966         AC_MSG_ERROR([missing liblzma for --with-lzma])
1967       fi
1968     fi
1969   fi
1970 fi
1971
1972 LIBGUI="../libgui/src/libgui.a"
1973 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1974 AC_SUBST(LIBGUI)
1975 AC_SUBST(GUI_CFLAGS_X)
1976
1977 WIN32LDAPP=
1978 AC_SUBST(WIN32LIBS)
1979 AC_SUBST(WIN32LDAPP)
1980
1981 case "${host}" in
1982 *-*-cygwin* | *-*-mingw* )
1983     configdir="win"
1984     ;;
1985 *)
1986     configdir="unix"
1987     ;;
1988 esac
1989
1990 GDBTKLIBS=
1991 if test "${enable_gdbtk}" = "yes"; then
1992
1993     # Gdbtk must have an absolute path to srcdir in order to run
1994     # properly when not installed.
1995     here=`pwd`
1996     cd ${srcdir}
1997     GDBTK_SRC_DIR=`pwd`
1998     cd $here
1999
2000     SC_PATH_TCLCONFIG
2001
2002     # If $no_tk is nonempty, then we can't do Tk, and there is no
2003     # point to doing Tcl.
2004     SC_PATH_TKCONFIG
2005
2006     if test -z "${no_tcl}" -a -z "${no_tk}"; then
2007         SC_LOAD_TCLCONFIG
2008
2009         # Check for in-tree tcl
2010         here=`pwd`
2011         cd ${srcdir}/..
2012         topdir=`pwd`
2013         cd ${here}
2014
2015         intree="no"
2016         if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2017           intree="yes"
2018         fi
2019
2020         # Find Tcl private headers
2021         if test x"${intree}" = xno; then
2022           CY_AC_TCL_PRIVATE_HEADERS
2023           TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2024           TCL_LIBRARY="${TCL_LIB_SPEC}"
2025           TCL_DEPS=""
2026         else
2027           # If building tcl in the same src tree, private headers
2028           # are not needed, but we need to be sure to use the right
2029           # headers library
2030           TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2031           TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2032           TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2033         fi
2034         AC_SUBST(TCL_INCLUDE)
2035         AC_SUBST(TCL_LIBRARY)
2036         AC_SUBST(TCL_DEPS)
2037
2038         SC_LOAD_TKCONFIG
2039
2040         # Check for in-tree Tk
2041         intree="no"
2042         if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2043           intree="yes"
2044         fi
2045
2046         # Find Tk private headers
2047         if test x"${intree}" = xno; then
2048           CY_AC_TK_PRIVATE_HEADERS
2049           TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2050           TK_LIBRARY=${TK_LIB_SPEC}
2051           TK_DEPS=""
2052         else
2053           TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2054           TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2055           TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2056         fi
2057         AC_SUBST(TK_INCLUDE)
2058         AC_SUBST(TK_LIBRARY)
2059         AC_SUBST(TK_DEPS)
2060         AC_SUBST(TK_XINCLUDES)
2061
2062         ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2063
2064         # Include some libraries that Tcl and Tk want.
2065         TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2066         # Yes, the ordering seems wrong here.  But it isn't.
2067         # TK_LIBS is the list of libraries that need to be linked
2068         # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
2069         # were in LIBS then any link tests after this point would
2070         # try to include things like `$(LIBGUI)', which wouldn't work.
2071         GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2072
2073         CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2074         CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2075         CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2076         CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2077         CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2078         CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2079         CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2080
2081         if test x$gdb_cv_os_cygwin = xyes; then
2082           WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2083           WIN32LDAPP="-Wl,--subsystem,console"
2084           CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2085         fi
2086
2087         AC_CONFIG_SUBDIRS(gdbtk)
2088     fi
2089 fi
2090
2091 AC_SUBST(X_CFLAGS)
2092 AC_SUBST(X_LDFLAGS)
2093 AC_SUBST(X_LIBS)
2094 AC_SUBST(GDBTKLIBS)
2095 AC_SUBST(GDBTK_CFLAGS)
2096 AC_SUBST(GDBTK_SRC_DIR)
2097
2098 AC_PATH_X
2099
2100 # Unlike the sim directory, whether a simulator is linked is controlled by
2101 # presence of a gdb_sim definition in the target configure.tgt entry.
2102 # This code just checks for a few cases where we'd like to ignore those
2103 # definitions, even when they're present in the '.mt' file.  These cases
2104 # are when --disable-sim is specified, or if the simulator directory is
2105 # not part of the source tree.
2106 #
2107 AC_ARG_ENABLE(sim,
2108 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2109 [echo "enable_sim = $enable_sim";
2110  echo "enableval = ${enableval}";
2111  case "${enableval}" in
2112   yes) ignore_sim=false ;;
2113   no)  ignore_sim=true ;;
2114   *)   ignore_sim=false ;;
2115  esac],
2116 [ignore_sim=false])
2117
2118 if test ! -d "${srcdir}/../sim"; then
2119   ignore_sim=true
2120 fi
2121
2122 SIM=
2123 SIM_OBS=
2124 if test "${ignore_sim}" = "false"; then
2125   if test x"${gdb_sim}" != x ; then
2126     SIM="${gdb_sim}"
2127     SIM_OBS="remote-sim.o"
2128     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2129   fi
2130 fi
2131 AC_SUBST(SIM)
2132 AC_SUBST(SIM_OBS)
2133
2134 AC_SUBST(ENABLE_CFLAGS)
2135 AC_SUBST(PROFILE_CFLAGS)
2136
2137 AC_SUBST(CONFIG_OBS)
2138 AC_SUBST(CONFIG_DEPS)
2139 AC_SUBST(CONFIG_SRCS)
2140 AC_SUBST(CONFIG_ALL)
2141 AC_SUBST(CONFIG_CLEAN)
2142 AC_SUBST(CONFIG_INSTALL)
2143 AC_SUBST(CONFIG_UNINSTALL)
2144
2145 # List of host floatformats.
2146 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2147 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2148 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2149
2150 # target_subdir is used by the testsuite to find the target libraries.
2151 target_subdir=
2152 if test "${host}" != "${target}"; then
2153     target_subdir="${target_alias}/"
2154 fi
2155 AC_SUBST(target_subdir)
2156
2157 frags=
2158 if test "${gdb_native}" = "yes"; then
2159   host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2160   if test ! -f ${host_makefile_frag}; then
2161     AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2162   fi
2163   frags="$frags $host_makefile_frag"
2164 else
2165   host_makefile_frag=/dev/null
2166 fi
2167
2168 AC_SUBST_FILE(host_makefile_frag)
2169 AC_SUBST(frags)
2170
2171 changequote(,)dnl
2172 if test "${gdb_native}" = "yes"; then
2173 # We pick this up from the host configuration file (.mh) because we
2174 # do not have a native configuration Makefile fragment.
2175 nativefile=`sed -n '
2176 s/NAT_FILE[     ]*=[    ]*\([^  ]*\)/\1/p
2177 ' ${host_makefile_frag}`
2178 fi
2179 changequote([,])
2180
2181 if test x"${gdb_osabi}" != x ; then
2182     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2183                        [Define to the default OS ABI for this configuration.])
2184 fi
2185
2186 # Enable multi-ice-gdb-server.
2187 AC_ARG_ENABLE(multi-ice,
2188 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2189   [case $enableval in
2190     yes | no)
2191       ;;
2192     *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2193   esac])
2194 if test "x$enable_multi_ice" = xyes; then
2195    AC_CONFIG_SUBDIRS(multi-ice)
2196 fi
2197
2198 AC_ARG_ENABLE(gdbserver,
2199 AS_HELP_STRING([--enable-gdbserver],
2200                [automatically build gdbserver (yes/no/auto, default is auto)]),
2201 [case "${enableval}" in
2202   yes| no|auto) ;;
2203   *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2204 esac],[enable_gdbserver=auto])
2205
2206 # We only build gdbserver automatically in a native configuration, and
2207 # only if the user did not explicitly disable its build.
2208 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2209   AC_MSG_CHECKING(whether gdbserver is supported on this host)
2210   if test "x$build_gdbserver" = xyes; then
2211     AC_MSG_RESULT(yes)
2212     AC_CONFIG_SUBDIRS(gdbserver)
2213     gdbserver_build_enabled=yes
2214   else
2215     AC_MSG_RESULT(no)
2216   fi
2217 fi
2218
2219 # If the user explicitly request the gdbserver to be built, verify that
2220 # we were in fact able to enable it.
2221 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2222   AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2223 fi
2224
2225 # Check for babeltrace and babeltrace-ctf
2226 AC_ARG_WITH(babeltrace,
2227   AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2228   [], [with_babeltrace=auto])
2229 AC_MSG_CHECKING([whether to use babeltrace])
2230 AC_MSG_RESULT([$with_babeltrace])
2231
2232 if test "x$with_babeltrace" = "xno"; then
2233   AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2234 else
2235   # Append -Werror to CFLAGS so that configure can catch the warning
2236   # "assignment from incompatible pointer type", which is related to
2237   # the babeltrace change from 1.0.3 to 1.1.0.  Babeltrace 1.1.0 works
2238   # in GDB, while babeltrace 1.0.3 is broken.
2239   # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2240   # safe to save and restore CFLAGS here.
2241   saved_CFLAGS=$CFLAGS
2242   CFLAGS="$CFLAGS -Werror"
2243   AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2244                         [#include <babeltrace/babeltrace.h>
2245                          #include <babeltrace/ctf/events.h>
2246                          #include <babeltrace/ctf/iterator.h>],
2247                         [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2248                         struct bt_ctf_event *event = NULL;
2249                         const struct bt_definition *scope;
2250
2251                         scope = bt_ctf_get_top_level_scope (event,
2252                                                            BT_STREAM_EVENT_HEADER);
2253                         bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2254                         ])
2255   CFLAGS=$saved_CFLAGS
2256
2257   if test "$HAVE_LIBBABELTRACE" != yes; then
2258      if test "$with_babeltrace" = yes; then
2259        AC_MSG_ERROR([babeltrace is missing or unusable])
2260      else
2261        AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2262      fi
2263   fi
2264 fi
2265
2266 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2267 # to an empty version.
2268
2269 files=
2270 links=
2271
2272 rm -f nm.h
2273 if test "${nativefile}" != ""; then
2274     case "${nativefile}" in
2275       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2276       * ) GDB_NM_FILE="${nativefile}"
2277     esac
2278     files="${files} ${GDB_NM_FILE}"
2279     links="${links} nm.h"
2280     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2281 fi
2282 AC_SUBST(GDB_NM_FILE)
2283
2284 AC_LINK_FILES($files, $links)
2285
2286 dnl Check for exe extension set on certain hosts (e.g. Win32)
2287 AC_EXEEXT
2288
2289 dnl  Detect the character set used by this host.
2290 dnl  At the moment, we just assume it's UTF-8.
2291 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2292           [Define to be a string naming the default host character set.])
2293
2294 # Undo the $ec_script escaping suitable for Makefile.
2295 transform=`echo "$program_transform_name" | sed -e 's/[\\$][\\$]/\\$/g'`
2296 GDB_TRANSFORM_NAME=`echo gdb | sed -e "$transform"`
2297 if test "x$GDB_TRANSFORM_NAME" = x; then
2298   GDB_TRANSFORM_NAME=gdb
2299 fi
2300 AC_SUBST(GDB_TRANSFORM_NAME)
2301 GCORE_TRANSFORM_NAME=`echo gcore | sed -e "$transform"`
2302 if test "x$GCORE_TRANSFORM_NAME" = x; then
2303   GCORE_TRANSFORM_NAME=gcore
2304 fi
2305 AC_SUBST(GCORE_TRANSFORM_NAME)
2306 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2307
2308 AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile,
2309 [
2310 case x$CONFIG_HEADERS in
2311 xconfig.h:config.in)
2312 echo > stamp-h ;;
2313 esac
2314 ])
2315
2316 exit 0