gdb/configure.ac

   1 dnl Autoconf configure script for GDB, the GNU debugger.
   2 dnl Copyright (C) 1995-2014 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 . $srcdir/development.sh
  28
  29 AC_PROG_CC
  30 AC_USE_SYSTEM_EXTENSIONS
  31 ACX_LARGEFILE
  32 AM_PROG_CC_STDC
  33 AM_PROG_INSTALL_STRIP
  34
  35 AC_CONFIG_AUX_DIR(..)
  36 AC_CANONICAL_SYSTEM
  37 AC_ARG_PROGRAM
  38
  39 # Dependency checking.
  40 ZW_CREATE_DEPDIR
  41 ZW_PROG_COMPILER_DEPENDENCIES([CC])
  42
  43 # Check for the 'make' the user wants to use.
  44 AC_CHECK_PROGS(MAKE, make)
  45 MAKE_IS_GNU=
  46 case "`$MAKE --version 2>&1 | sed 1q`" in
  47   *GNU*)
  48     MAKE_IS_GNU=yes
  49     ;;
  50 esac
  51 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
  52 AC_PROG_MAKE_SET
  53
  54 # Configure gnulib.  We need to build gnulib under some other
  55 # directory not "gnulib", to avoid the problem of both GDB and
  56 # GDBserver wanting to build it in the same directory, when building
  57 # in the source dir.
  58 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"])
  59
  60 dnl List of object files and targets accumulated by configure.
  61
  62 CONFIG_OBS=
  63 CONFIG_DEPS=
  64 CONFIG_SRCS=
  65 ENABLE_CFLAGS=
  66
  67 CONFIG_ALL=
  68 CONFIG_CLEAN=
  69 CONFIG_INSTALL=
  70 CONFIG_UNINSTALL=
  71
  72 dnl Set up for gettext.
  73 ZW_GNU_GETTEXT_SISTER_DIR
  74
  75 localedir='${datadir}/locale'
  76 AC_SUBST(localedir)
  77
  78 if test x"$USE_NLS" = xyes; then
  79    CONFIG_ALL="$CONFIG_ALL all-po"
  80    CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
  81    CONFIG_INSTALL="$CONFIG_INSTALL install-po"
  82    CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
  83 fi
  84
  85 GNULIB=build-gnulib/import
  86
  87 # For Makefile dependencies.
  88 GNULIB_STDINT_H=
  89 if test x"$STDINT_H" != x; then
  90   GNULIB_STDINT_H=$GNULIB/$STDINT_H
  91 fi
  92 AC_SUBST(GNULIB_STDINT_H)
  93
  94 PACKAGE=gdb
  95 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
  96 AC_SUBST(PACKAGE)
  97
  98 # We never need to detect it in this sub-configure.
  99 # But preserve it for config.status --recheck.
 100 AC_ARG_VAR(MAKEINFO,
 101   [Parent configure detects if it is of sufficient version.])
 102 AC_ARG_VAR(MAKEINFOFLAGS,
 103   [Parameters for MAKEINFO.])
 104
 105 MAKEINFO_EXTRA_FLAGS=""
 106 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
 107   [echo '@clicksequence{a @click{} b}' >conftest.texinfo
 108   if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
 109     gdb_cv_have_makeinfo_click=yes
 110   else
 111     gdb_cv_have_makeinfo_click=no
 112   fi])
 113 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
 114   MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
 115 fi
 116 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
 117
 118 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
 119     [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
 120     [${libdir}/debug])
 121
 122 # We can't pass paths as command line arguments.
 123 # Mingw32 tries to be clever and will convert the paths for us.
 124 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
 125 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
 126 # This breaks GDB's relocatable path conversions since paths passed in
 127 # config.h would not get so translated, the path prefixes no longer match.
 128 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
 129
 130 # GDB's datadir relocation
 131
 132 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
 133     [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
 134     [${datadir}/gdb])
 135
 136 AC_ARG_WITH(relocated-sources,
 137 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
 138 [reloc_srcdir="${withval}"
 139  AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
 140               [Relocated directory for source files. ])
 141 ])
 142
 143 AC_MSG_CHECKING([for default auto-load directory])
 144 AC_ARG_WITH(auto-load-dir,
 145 AS_HELP_STRING([--with-auto-load-dir=PATH],
 146   [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
 147   [with_auto_load_dir='$debugdir:$datadir/auto-load'])
 148 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
 149 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
 150               [Directories from which to load auto-loaded scripts.])
 151 AC_MSG_RESULT([$with_auto_load_dir])
 152
 153 AC_MSG_CHECKING([for default auto-load safe-path])
 154 AC_ARG_WITH(auto-load-safe-path,
 155 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
 156   [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
 157 AS_HELP_STRING([--without-auto-load-safe-path],
 158                [do not restrict auto-loaded files locations]),
 159     [if test "$with_auto_load_safe_path" = "no"; then
 160      with_auto_load_safe_path="/"
 161      fi],
 162 [with_auto_load_safe_path="$with_auto_load_dir"])
 163 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
 164 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
 165               [Directories safe to hold auto-loaded files.])
 166 AC_MSG_RESULT([$with_auto_load_safe_path])
 167
 168 AC_CONFIG_SUBDIRS(testsuite)
 169
 170 # Check whether to support alternative target configurations
 171 AC_ARG_ENABLE(targets,
 172 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
 173 [case "${enableval}" in
 174   yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
 175             ;;
 176   no)       enable_targets= ;;
 177   *)        enable_targets=$enableval ;;
 178 esac])
 179
 180 # Check whether to enable 64-bit support on 32-bit hosts
 181 AC_ARG_ENABLE(64-bit-bfd,
 182 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
 183 [case "${enableval}" in
 184   yes)  want64=true  ;;
 185   no)   want64=false ;;
 186   *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
 187 esac],[want64=false])dnl
 188
 189 # Provide defaults for some variables set by the per-host and per-target
 190 # configuration.
 191 gdb_host_obs=posix-hdep.o
 192
 193 if test "${target}" = "${host}"; then
 194   gdb_native=yes
 195 else
 196   gdb_native=no
 197 fi
 198
 199 . $srcdir/configure.host
 200
 201 # Accumulate some settings from configure.tgt over all enabled targets
 202
 203 TARGET_OBS=
 204 all_targets=
 205 HAVE_NATIVE_GCORE_TARGET=
 206
 207 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
 208 do
 209   if test "$targ_alias" = "all"; then
 210     all_targets=true
 211   else
 212     # Canonicalize the secondary target names.
 213     result=`$ac_config_sub $targ_alias 2>/dev/null`
 214     if test -n "$result"; then
 215         targ=$result
 216     else
 217         targ=$targ_alias
 218     fi
 219
 220     . ${srcdir}/configure.tgt
 221
 222     AS_IF([test -z "${gdb_target_obs}"],
 223       [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
 224
 225     # Target-specific object files
 226     for i in ${gdb_target_obs}; do
 227         case " $TARGET_OBS " in
 228         *" ${i} "*) ;;
 229         *)
 230           TARGET_OBS="$TARGET_OBS ${i}"
 231           ;;
 232         esac
 233     done
 234
 235     # Check whether this target needs 64-bit CORE_ADDR
 236     if test x${want64} = xfalse; then
 237       . ${srcdir}/../bfd/config.bfd
 238     fi
 239
 240     # Check whether this target is native and supports gcore.
 241     if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
 242        && $gdb_have_gcore; then
 243       HAVE_NATIVE_GCORE_TARGET=1
 244     fi
 245   fi
 246 done
 247
 248 if test x${all_targets} = xtrue; then
 249
 250   # We want all 64-bit targets if we either:
 251   #  - run on a 64-bit host  or
 252   #  - already require 64-bit support for some other target  or
 253   #  - the --enable-64-bit-bfd option was supplied
 254   # Otherwise we only support all 32-bit targets.
 255   #
 256   # NOTE: This test must be in sync with the corresponding
 257   #       tests in BFD!
 258
 259   if test x${want64} = xfalse; then
 260     AC_CHECK_SIZEOF(long)
 261     if test "x${ac_cv_sizeof_long}" = "x8"; then
 262       want64=true
 263     fi
 264   fi
 265   if test x${want64} = xtrue; then
 266     TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
 267   else
 268     TARGET_OBS='$(ALL_TARGET_OBS)'
 269   fi
 270 fi
 271
 272 AC_SUBST(TARGET_OBS)
 273 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
 274
 275 # For other settings, only the main target counts.
 276 gdb_sim=
 277 gdb_osabi=
 278 build_gdbserver=
 279 targ=$target; . ${srcdir}/configure.tgt
 280
 281 # Fetch the default architecture and default target vector from BFD.
 282 targ=$target; . $srcdir/../bfd/config.bfd
 283
 284 # We only want the first architecture, so strip off the others if
 285 # there is more than one.
 286 targ_archs=`echo $targ_archs | sed 's/ .*//'`
 287
 288 if test "x$targ_archs" != x; then
 289   AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
 290     [Define to BFD's default architecture. ])
 291 fi
 292 if test "x$targ_defvec" != x; then
 293   AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
 294     [Define to BFD's default target vector. ])
 295 fi
 296
 297 # The CLI cannot be disabled yet, but may be in the future.
 298
 299 # Enable CLI.
 300 AC_ARG_ENABLE(gdbcli,
 301 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
 302   [case $enableval in
 303     yes)
 304       ;;
 305     no)
 306       AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
 307     *)
 308       AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
 309   esac],
 310   [enable_gdbcli=yes])
 311 if test x"$enable_gdbcli" = xyes; then
 312   if test -d $srcdir/cli; then
 313     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
 314     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
 315     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
 316     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
 317   fi
 318 fi
 319
 320 # Enable MI.
 321 AC_ARG_ENABLE(gdbmi,
 322 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
 323   [case $enableval in
 324     yes | no)
 325       ;;
 326     *)
 327       AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
 328   esac],
 329   [enable_gdbmi=yes])
 330 if test x"$enable_gdbmi" = xyes; then
 331   if test -d $srcdir/mi; then
 332     CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
 333     CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
 334     CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
 335     ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
 336   fi
 337 fi
 338
 339 # Enable TUI.
 340 AC_ARG_ENABLE(tui,
 341 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
 342   [case $enableval in
 343     yes | no | auto)
 344       ;;
 345     *)
 346       AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
 347   esac],enable_tui=auto)
 348
 349 # Enable gdbtk.
 350 AC_ARG_ENABLE(gdbtk,
 351 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
 352   [case $enableval in
 353     yes | no)
 354       ;;
 355     *)
 356       AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
 357   esac],
 358   [if test -d $srcdir/gdbtk; then
 359     enable_gdbtk=yes
 360   else
 361     enable_gdbtk=no
 362   fi])
 363 # We unconditionally disable gdbtk tests on selected platforms.
 364 case $host_os in
 365   go32* | windows*)
 366     AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
 367     enable_gdbtk=no ;;
 368 esac
 369
 370 # Libunwind support for ia64.
 371
 372 AC_ARG_WITH(libunwind-ia64,
 373 AS_HELP_STRING([--with-libunwind-ia64],
 374                [use libunwind frame unwinding for ia64 targets]),,
 375             [with_libunwind_ia64=auto])
 376
 377 # Backward compatibility option.
 378 if test "${with_libunwind+set}" = set; then
 379   if test x"$with_libunwind_ia64" != xauto; then
 380     AC_MSG_ERROR(
 381       [option --with-libunwind is deprecated, use --with-libunwind-ia64])
 382   fi
 383   AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
 384   with_libunwind_ia64="$with_libunwind"
 385 fi
 386
 387 case "$with_libunwind_ia64" in
 388   yes | no)
 389     ;;
 390   auto)
 391     AC_CHECK_HEADERS(libunwind-ia64.h)
 392     with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
 393     ;;
 394   *)
 395     AC_MSG_ERROR(
 396       [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
 397     ;;
 398 esac
 399
 400 if test x"$with_libunwind_ia64" = xyes; then
 401   AC_CHECK_HEADERS(libunwind-ia64.h)
 402   if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
 403     AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
 404   fi
 405   CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
 406   CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
 407   CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
 408 fi
 409
 410 opt_curses=no
 411 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
 412
 413 prefer_curses=no
 414 if test "$opt_curses" = "yes"; then
 415   prefer_curses=yes
 416 fi
 417
 418 # Profiling support.
 419 AC_ARG_ENABLE(profiling,
 420 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
 421   [case $enableval in
 422     yes | no)
 423       ;;
 424     *)
 425       AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
 426   esac],
 427  [enable_profiling=no])
 428
 429 AC_CHECK_FUNCS(monstartup _mcleanup)
 430 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
 431 [AC_TRY_LINK(
 432 [#include <stdlib.h>
 433 extern char _etext;
 434 ],
 435 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
 436 if test $ac_cv_var__etext = yes; then
 437   AC_DEFINE(HAVE__ETEXT, 1,
 438             [Define to 1 if your system has the _etext variable. ])
 439 fi
 440 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
 441 [AC_TRY_LINK(
 442 [#include <stdlib.h>
 443 extern char etext;
 444 ],
 445 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
 446 if test $ac_cv_var_etext = yes; then
 447   AC_DEFINE(HAVE_ETEXT, 1,
 448             [Define to 1 if your system has the etext variable. ])
 449 fi
 450 if test "$enable_profiling" = yes ; then
 451   if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
 452     AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
 453   fi
 454   PROFILE_CFLAGS=-pg
 455   OLD_CFLAGS="$CFLAGS"
 456   CFLAGS="$CFLAGS $PROFILE_CFLAGS"
 457
 458   AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
 459     [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
 460      ac_cv_cc_supports_pg=no)])
 461
 462   if test $ac_cv_cc_supports_pg = no; then
 463     AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
 464   fi
 465
 466   CFLAGS="$OLD_CFLAGS"
 467 fi
 468
 469 ACX_PKGVERSION([GDB])
 470 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
 471 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
 472 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
 473
 474 # --------------------- #
 475 # Checks for programs.  #
 476 # --------------------- #
 477
 478 AC_PROG_AWK
 479 AC_PROG_INSTALL
 480 AC_PROG_LN_S
 481 AC_PROG_RANLIB
 482 AC_PROG_YACC
 483
 484 AC_CHECK_TOOL(AR, ar)
 485 AC_CHECK_TOOL(DLLTOOL, dlltool)
 486 AC_CHECK_TOOL(WINDRES, windres)
 487
 488 case $host_os in
 489   gnu*)
 490     # Needed for GNU Hurd hosts.
 491     AC_CHECK_TOOL(MIG, mig)
 492     if test x"$MIG" = x; then
 493       AC_MSG_ERROR([MIG not found but required for $host hosts])
 494     fi
 495     ;;
 496 esac
 497
 498 # ---------------------- #
 499 # Checks for libraries.  #
 500 # ---------------------- #
 501
 502 # We might need to link with -lm; most simulators need it.
 503 AC_CHECK_LIB(m, main)
 504
 505 # We need to link with -lw to get `wctype' on Solaris before Solaris
 506 # 2.6.  Solaris 2.6 and beyond have this function in libc, and have a
 507 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
 508 # is known to have this problem).  Therefore we avoid libw if we can.
 509 AC_CHECK_FUNC(wctype, [],
 510   [AC_CHECK_LIB(w, wctype)])
 511
 512 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
 513 AC_SEARCH_LIBS(gethostbyname, nsl)
 514
 515 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
 516 AC_SEARCH_LIBS(socketpair, socket)
 517
 518 # Link in zlib if we can.  This allows us to read compressed debug sections.
 519 AM_ZLIB
 520
 521 # On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).
 522 AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl])
 523
 524 AM_ICONV
 525
 526 # GDB may fork/exec the iconv program to get the list of supported character
 527 # sets.  Allow the user to specify where to find it.
 528 # There are several factors affecting the choice of option name:
 529 # - There is already --with-libiconv-prefix but we can't use it, it specifies
 530 #   the build-time location of libiconv files.
 531 # - The program we need to find is iconv, which comes with glibc.  The user
 532 #   doesn't necessarily have libiconv installed.  Therefore naming this
 533 #   --with-libiconv-foo feels wrong.
 534 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
 535 #   defined to work on directories not files (though it really doesn't know
 536 #   the difference).
 537 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
 538 #   with --with-libiconv-prefix.
 539 # Putting these together is why the option name is --with-iconv-bin.
 540
 541 AC_ARG_WITH(iconv-bin,
 542 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
 543 [iconv_bin="${withval}"
 544  AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
 545                     [Path of directory of iconv program.])
 546  GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
 547 ])
 548
 549 # On alpha-osf, it appears that libtermcap and libcurses are not compatible.
 550 # There is a very specific comment in /usr/include/curses.h explaining that
 551 # termcap routines built into libcurses must not be used.
 552 #
 553 # The symptoms we observed so far is GDB unexpectedly changing
 554 # the terminal settings when tgetent is called - this is particularly
 555 # visible as the output is missing carriage returns, and so rapidly
 556 # becomes very hard to read.
 557 #
 558 # The readline configure script has already decided that libtermcap
 559 # was enough for its purposes, and so decided to build readline using
 560 # libtermcap.  Since the TUI mode requires curses, building GDB with
 561 # TUI enabled results in both libraries to be used at the same time,
 562 # which is not allowed.  This basically means that GDB with TUI is
 563 # broken on alpha-osf.
 564
 565 case $host_os in
 566   osf* )
 567     if test x"$enable_tui" = xyes; then
 568       AC_MSG_ERROR([Building GDB with TUI mode is not supported on this host])
 569     fi
 570     if test x"$enable_tui" = xauto; then
 571       enable_tui=no
 572     fi
 573     ;;
 574 esac
 575
 576 # For the TUI, we need enhanced curses functionality.
 577 if test x"$enable_tui" != xno; then
 578   prefer_curses=yes
 579 fi
 580
 581 curses_found=no
 582 if test x"$prefer_curses" = xyes; then
 583   # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
 584   # curses library because the latter might not provide all the
 585   # functionality we need.  However, this leads to problems on systems
 586   # where the linker searches /usr/local/lib, but the compiler doesn't
 587   # search /usr/local/include, if ncurses is installed in /usr/local.  A
 588   # default installation of ncurses on alpha*-dec-osf* will lead to such
 589   # a situation.
 590   AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
 591
 592   if test "$ac_cv_search_waddstr" != no; then
 593     curses_found=yes
 594   fi
 595 fi
 596
 597 # Check whether we should enable the TUI, but only do so if we really
 598 # can.
 599 if test x"$enable_tui" != xno; then
 600   if test -d $srcdir/tui; then
 601     if test "$curses_found" != no; then
 602       CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
 603       CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
 604       CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
 605       ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
 606     else
 607       if test x"$enable_tui" = xyes; then
 608         AC_MSG_ERROR([no enhanced curses library found; disable TUI])
 609       else
 610         AC_MSG_WARN([no enhanced curses library found; disabling TUI])
 611       fi
 612     fi
 613   fi
 614 fi
 615
 616 # Since GDB uses Readline, we need termcap functionality.  In many
 617 # cases this will be provided by the curses library, but some systems
 618 # have a seperate termcap library, or no curses library at all.
 619
 620 case $host_os in
 621   cygwin*)
 622     if test -d $srcdir/libtermcap; then
 623       LIBS="../libtermcap/libtermcap.a $LIBS"
 624       ac_cv_search_tgetent="../libtermcap/libtermcap.a"
 625     fi ;;
 626   go32* | *djgpp*)
 627     ac_cv_search_tgetent="none required"
 628     ;;
 629   *mingw32*)
 630     ac_cv_search_tgetent="none required"
 631     CONFIG_OBS="$CONFIG_OBS windows-termcap.o"
 632     ;;
 633 esac
 634
 635 # These are the libraries checked by Readline.
 636 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
 637
 638 if test "$ac_cv_search_tgetent" = no; then
 639   AC_MSG_ERROR([no termcap library found])
 640 fi
 641
 642 AC_ARG_WITH([system-readline],
 643   [AS_HELP_STRING([--with-system-readline],
 644                   [use installed readline library])])
 645
 646 if test "$with_system_readline" = yes; then
 647   READLINE=-lreadline
 648   READLINE_DEPS=
 649   READLINE_CFLAGS=
 650   READLINE_TEXI_INCFLAG=
 651 else
 652   READLINE='$(READLINE_DIR)/libreadline.a'
 653   READLINE_DEPS='$(READLINE)'
 654   READLINE_CFLAGS='-I$(READLINE_SRC)/..'
 655   READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
 656 fi
 657 AC_SUBST(READLINE)
 658 AC_SUBST(READLINE_DEPS)
 659 AC_SUBST(READLINE_CFLAGS)
 660 AC_SUBST(READLINE_TEXI_INCFLAG)
 661
 662 # Generate jit-reader.h
 663
 664 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
 665 TARGET_PTR=
 666
 667 AC_CHECK_SIZEOF(unsigned long long)
 668 AC_CHECK_SIZEOF(unsigned long)
 669 AC_CHECK_SIZEOF(unsigned __int128)
 670
 671 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
 672   TARGET_PTR="unsigned long"
 673 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
 674   TARGET_PTR="unsigned long long"
 675 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
 676   TARGET_PTR="unsigned __int128"
 677 else
 678   TARGET_PTR="unsigned long"
 679 fi
 680
 681 AC_SUBST(TARGET_PTR)
 682 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
 683
 684 AC_SEARCH_LIBS(dlopen, dl)
 685
 686 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
 687                 [directory to load the JIT readers from],
 688                 [${libdir}/gdb])
 689
 690 AC_ARG_WITH(expat,
 691   AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
 692   [], [with_expat=auto])
 693 AC_MSG_CHECKING([whether to use expat])
 694 AC_MSG_RESULT([$with_expat])
 695
 696 if test "${with_expat}" = no; then
 697   AC_MSG_WARN([expat support disabled; some features may be unavailable.])
 698   HAVE_LIBEXPAT=no
 699 else
 700   AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
 701                         [XML_Parser p = XML_ParserCreate (0);])
 702   if test "$HAVE_LIBEXPAT" != yes; then
 703     if test "$with_expat" = yes; then
 704       AC_MSG_ERROR([expat is missing or unusable])
 705     else
 706       AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
 707     fi
 708   else
 709     save_LIBS=$LIBS
 710     LIBS="$LIBS $LIBEXPAT"
 711     AC_CHECK_FUNCS(XML_StopParser)
 712     LIBS=$save_LIBS
 713   fi
 714 fi
 715
 716 # --------------------- #
 717 # Check for libpython.  #
 718 # --------------------- #
 719
 720 dnl Utility to simplify finding libpython.
 721 dnl $1 = pythonX.Y
 722 dnl $2 = the shell variable to assign the result to
 723 dnl      If libpython is found we store $version here.
 724 dnl $3 = additional flags to add to CPPFLAGS
 725 dnl $4 = additional flags to add to LIBS
 726
 727 AC_DEFUN([AC_TRY_LIBPYTHON],
 728 [
 729   version=$1
 730   define([have_libpython_var],$2)
 731   new_CPPFLAGS=$3
 732   new_LIBS=$4
 733   AC_MSG_CHECKING([for ${version}])
 734   save_CPPFLAGS=$CPPFLAGS
 735   save_LIBS=$LIBS
 736   CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
 737   LIBS="$LIBS $new_LIBS"
 738   found_usable_python=no
 739   AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
 740                                  [[Py_Initialize ();]]),
 741                  [have_libpython_var=${version}
 742                   found_usable_python=yes
 743                   PYTHON_CPPFLAGS=$new_CPPFLAGS
 744                   PYTHON_LIBS=$new_LIBS])
 745   CPPFLAGS=$save_CPPFLAGS
 746   LIBS=$save_LIBS
 747   AC_MSG_RESULT([${found_usable_python}])
 748 ])
 749
 750 dnl There are several different values for --with-python:
 751 dnl
 752 dnl no -   Don't include python support.
 753 dnl yes -  Include python support, error if it's missing.
 754 dnl        If we find python in $PATH, use it to fetch configure options,
 755 dnl        otherwise assume the compiler can find it with no help from us.
 756 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 757 dnl auto - Same as "yes", but if python is missing from the system,
 758 dnl        fall back to "no".
 759 dnl /path/to/python/exec-prefix -
 760 dnl        Use the python located in this directory.
 761 dnl        If /path/to/python/exec-prefix/bin/python exists, use it to find
 762 dnl        the compilation parameters.  Otherwise use
 763 dnl        -I/path/to/python/exec-prefix/include,
 764 dnl        -L/path/to/python/exec-prefix/lib.
 765 dnl        Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
 766 dnl        NOTE: This case is historical.  It is what was done for 7.0/7.1
 767 dnl        but is deprecated.
 768 dnl /path/to/python/executable -
 769 dnl        Run python-config.py with this version of python to fetch the
 770 dnl        compilation parameters.
 771 dnl        NOTE: This needn't be the real python executable.
 772 dnl        In a cross-compilation scenario (build != host), this could be
 773 dnl        a shell script that provides what python-config.py provides for
 774 dnl        --ldflags, --includes, --exec-prefix.
 775 dnl python-executable -
 776 dnl        Find python-executable in $PATH, and then handle the same as
 777 dnl        /path/to/python/executable.
 778 dnl
 779 dnl If a python program is specified, it is used to run python-config.py and
 780 dnl is passed --ldflags, --includes, --exec-prefix.
 781
 782 AC_ARG_WITH(python,
 783   AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
 784   [], [with_python=auto])
 785 AC_MSG_CHECKING([whether to use python])
 786 AC_MSG_RESULT([$with_python])
 787
 788 if test "${with_python}" = no; then
 789   AC_MSG_WARN([python support disabled; some features may be unavailable.])
 790   have_libpython=no
 791 else
 792   case "${with_python}" in
 793   [[\\/]]* | ?:[[\\/]]*)
 794     if test -d ${with_python}; then
 795       # Assume the python binary is ${with_python}/bin/python.
 796       python_prog="${with_python}/bin/python"
 797       python_prefix=
 798       # If python does not exit ${with_python}/bin, then try in
 799       # ${with_python}.  On Windows/MinGW, this is where the Python
 800       # executable is.
 801       if test ! -x "${python_prog}"; then
 802         python_prog="${with_python}/python"
 803         python_prefix=
 804       fi
 805       if test ! -x "${python_prog}"; then
 806         # Fall back to gdb 7.0/7.1 behaviour.
 807         python_prog=missing
 808         python_prefix=${with_python}
 809       fi
 810     elif test -x "${with_python}"; then
 811       # While we can't run python compiled for $host (unless host == build),
 812       # the user could write a script that provides the needed information,
 813       # so we support that.
 814       python_prog=${with_python}
 815       python_prefix=
 816     else
 817       AC_ERROR(invalid value for --with-python)
 818     fi
 819     ;;
 820   */*)
 821     # Disallow --with-python=foo/bar.
 822     AC_ERROR(invalid value for --with-python)
 823     ;;
 824   *)
 825     # The user has either specified auto, yes, or the name of the python
 826     # program assumed to be in $PATH.
 827     python_prefix=
 828     case "${with_python}" in
 829     yes | auto)
 830       if test ${build} = ${host}; then
 831         AC_PATH_PROG(python_prog_path, python, missing)
 832         if test "${python_prog_path}" = missing; then
 833           python_prog=missing
 834         else
 835           python_prog=${python_prog_path}
 836         fi
 837       else
 838         # Not much we can do except assume the cross-compiler will find the
 839         # right files.
 840         python_prog=missing
 841       fi
 842       ;;
 843     *)
 844       # While we can't run python compiled for $host (unless host == build),
 845       # the user could write a script that provides the needed information,
 846       # so we support that.
 847       python_prog="${with_python}"
 848       AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
 849       if test "${python_prog_path}" = missing; then
 850         AC_ERROR(unable to find python program ${python_prog})
 851       fi
 852       ;;
 853     esac
 854   esac
 855
 856   if test "${python_prog}" != missing; then
 857     # We have a python program to use, but it may be too old.
 858     # Don't flag an error for --with-python=auto (the default).
 859     have_python_config=yes
 860     python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
 861     if test $? != 0; then
 862       have_python_config=failed
 863       if test "${with_python}" != auto; then
 864         AC_ERROR(failure running python-config --includes)
 865       fi
 866     fi
 867     python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
 868     if test $? != 0; then
 869       have_python_config=failed
 870       if test "${with_python}" != auto; then
 871         AC_ERROR(failure running python-config --ldflags)
 872       fi
 873     fi
 874     python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
 875     if test $? != 0; then
 876       have_python_config=failed
 877       if test "${with_python}" != auto; then
 878         AC_ERROR(failure running python-config --exec-prefix)
 879       fi
 880     fi
 881   else
 882     # We do not have a python executable we can use to determine where
 883     # to find the Python headers and libs.  We cannot guess the include
 884     # path from the python_prefix either, because that include path
 885     # depends on the Python version.  So, there is nothing much we can
 886     # do except assume that the compiler will be able to find those files.
 887     python_includes=
 888     python_libs=
 889     have_python_config=no
 890   fi
 891
 892   # If we have python-config, only try the configuration it provides.
 893   # Otherwise fallback on the old way of trying different versions of
 894   # python in turn.
 895
 896   have_libpython=no
 897   if test "${have_python_config}" = yes; then
 898     # Determine the Python version by extracting "-lpython<version>"
 899     # part of the python_libs. <version> is usually X.Y with X and Y
 900     # being decimal numbers, but can also be XY (seen on Windows).
 901     #
 902     # The extraction is performed using sed with a regular expression.
 903     # Initially, the regexp used was using the '?' quantifier to make
 904     # the dot in the version number optional.  Unfortunately, this
 905     # does not work with non-GNU versions of sed because, because of
 906     # what looks like a limitation (the '?' quantifier does not work
 907     # with back-references).  We work around this limitation by using
 908     # the '*' quantifier instead.  It means that, in theory, we might
 909     # match unexpected version strings such as "-lpython2..7", but
 910     # this seems unlikely in practice.  And even if that happens,
 911     # an error will be triggered later on, when checking that version
 912     # number.
 913     python_version=`echo " ${python_libs} " \
 914                          | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
 915     case "${python_version}" in
 916     python*)
 917       AC_TRY_LIBPYTHON(${python_version}, have_libpython,
 918                        ${python_includes}, ${python_libs})
 919       ;;
 920     *)
 921       AC_MSG_ERROR([unable to determine python version from ${python_libs}])
 922       ;;
 923     esac
 924   elif test "${have_python_config}" != failed; then
 925     if test "${have_libpython}" = no; then
 926       AC_TRY_LIBPYTHON(python2.7, have_libpython,
 927                        ${python_includes}, "${python_libs} -lpython2.7")
 928     fi
 929     if test "${have_libpython}" = no; then
 930       AC_TRY_LIBPYTHON(python2.6, have_libpython,
 931                        ${python_includes}, "${python_libs} -lpython2.6")
 932     fi
 933     if test ${have_libpython} = no; then
 934       AC_TRY_LIBPYTHON(python2.5, have_libpython,
 935                        ${python_includes}, "${python_libs} -lpython2.5")
 936     fi
 937     if test ${have_libpython} = no; then
 938       AC_TRY_LIBPYTHON(python2.4, have_libpython,
 939                        ${python_includes}, "${python_libs} -lpython2.4")
 940     fi
 941   fi
 942   if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
 943     AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
 944   elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
 945     AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
 946   elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
 947     AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
 948   elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
 949     AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
 950   fi
 951
 952   if test "${have_libpython}" = no; then
 953     case "${with_python}" in
 954     yes)
 955       AC_MSG_ERROR([python is missing or unusable])
 956       ;;
 957     auto)
 958       AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
 959       ;;
 960     *)
 961       AC_MSG_ERROR([no usable python found at ${with_python}])
 962       ;;
 963     esac
 964   else
 965     if test -n "${python_prefix}"; then
 966       AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
 967                          [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
 968       GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
 969     fi
 970   fi
 971 fi
 972
 973 if test "${have_libpython}" != no; then
 974   AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
 975   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
 976   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
 977   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
 978   CONFIG_INSTALL="$CONFIG_INSTALL install-python"
 979   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
 980
 981   # Flags needed to compile Python code (taken from python-config --cflags).
 982   # We cannot call python-config directly because it will output whatever was
 983   # used when compiling the Python interpreter itself, including flags which
 984   # would make the python-related objects be compiled differently from the
 985   # rest of GDB (e.g., -O2 and -fPIC).
 986   if test "${GCC}" = yes; then
 987     tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
 988   fi
 989
 990   if test "x${tentative_python_cflags}" != x; then
 991     AC_MSG_CHECKING(compiler flags for python code)
 992     for flag in ${tentative_python_cflags}; do
 993       # Check that the compiler accepts it
 994       saved_CFLAGS="$CFLAGS"
 995       CFLAGS="$CFLAGS $flag"
 996       AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
 997       CFLAGS="$saved_CFLAGS"
 998     done
 999     AC_MSG_RESULT(${PYTHON_CFLAGS})
1000   fi
1001
1002   # On IRIX, type siginfo is not defined.  Instead, sys/siginfo.h provides:
1003   #    #if _SGIAPI
1004   #    #define siginfo __siginfo
1005   #    #endif
1006   # The problem is that including Python causes some XOPEN macros to be
1007   # unilaterally defined, and that in turn causes _SGIAPI to evaluate
1008   # to false.  So, we work around this issue by defining siginfo ourself
1009   # though the command-line.
1010   #
1011   # On x64 Windows, Python's include headers, and pyconfig.h in
1012   # particular, rely on MS_WIN64 macro to detect that it's a 64bit
1013   # version of Windows.  Unfortunately, MS_WIN64 is only defined if
1014   # _MSC_VER, a Microsoft-specific macro, is defined.  So, when
1015   # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
1016   # The issue was reported to the Python community, but still isn't
1017   # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
1018
1019   case "$gdb_host" in
1020     irix*) if test "${GCC}" = yes; then
1021              CPPFLAGS="$CPPFLAGS -Dsiginfo=__siginfo"
1022            fi
1023            ;;
1024     mingw64)
1025            if test "${GCC}" = yes; then
1026              CPPFLAGS="$CPPFLAGS -DMS_WIN64"
1027            fi
1028            ;;
1029   esac
1030
1031   # Note that "python -m threading" cannot be used to check for
1032   # threading support due to a bug in Python 2.7.3
1033   # (http://bugs.python.org/issue15567).
1034   AC_MSG_CHECKING(whether python supports threads)
1035   saved_CPPFLAGS="${CPPFLAGS}"
1036   CPPFLAGS="${PYTHON_CPPFLAGS}"
1037   # Note that the test is reversed so that python_has_threads=yes on
1038   # unexpected failures.
1039   AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1040 #include <Python.h>
1041 #ifdef WITH_THREAD
1042 # error
1043 #endif
1044   ]]), [python_has_threads=no], [python_has_threads=yes])
1045   AC_MSG_RESULT(${python_has_threads})
1046   CPPFLAGS="${saved_CPPFLAGS}"
1047 else
1048   # Even if Python support is not compiled in, we need to have this file
1049   # included so that the "python" command, et.al., still exists.
1050   CONFIG_OBS="$CONFIG_OBS python.o"
1051   CONFIG_SRCS="$CONFIG_SRCS python/python.c"
1052 fi
1053 AC_SUBST(PYTHON_CFLAGS)
1054 AC_SUBST(PYTHON_CPPFLAGS)
1055 AC_SUBST(PYTHON_LIBS)
1056
1057 # --------------------- #
1058 # Check for libmcheck.  #
1059 # --------------------- #
1060
1061 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1062 # but turn it off if Python is enabled with threads, since -lmcheck is
1063 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1064 # and for releases.
1065 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1066    && $development; then
1067   libmcheck_default=yes
1068 else
1069   libmcheck_default=no
1070 fi
1071 GDB_AC_LIBMCHECK(${libmcheck_default})
1072
1073 if test "$ENABLE_LIBMCHECK" = "yes" \
1074         -a "${have_libpython}" != "no" \
1075         -a "${python_has_threads}" = "yes" ; then
1076   AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1077 fi
1078
1079 # ------------------------- #
1080 # Checks for header files.  #
1081 # ------------------------- #
1082
1083 AC_HEADER_STDC
1084 # elf_hp.h is for HP/UX 64-bit shared library support.
1085 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1086                   thread_db.h \
1087                   sys/fault.h \
1088                   sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1089                   sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1090                   sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1091                   termios.h termio.h \
1092                   sgtty.h elf_hp.h \
1093                   dlfcn.h])
1094 AC_CHECK_HEADERS(sys/proc.h, [], [],
1095 [#if HAVE_SYS_PARAM_H
1096 # include <sys/param.h>
1097 #endif
1098 ])
1099 AC_CHECK_HEADERS(sys/user.h, [], [],
1100 [#if HAVE_SYS_PARAM_H
1101 # include <sys/param.h>
1102 #endif
1103 ])
1104
1105 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
1106 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
1107 # think that we don't have <curses.h> if we're using GCC.
1108 case $host_os in
1109   solaris2.[[789]])
1110     if test "$GCC" = yes; then
1111       AC_DEFINE(_MSE_INT_H, 1,
1112         [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
1113    Solaris 2.[789] when using GCC. ])
1114     fi ;;
1115 esac
1116 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
1117 AC_CHECK_HEADERS(term.h, [], [],
1118 [#if HAVE_CURSES_H
1119 # include <curses.h>
1120 #endif
1121 ])
1122
1123 # ------------------------- #
1124 # Checks for declarations.  #
1125 # ------------------------- #
1126
1127 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1128 AM_LC_MESSAGES
1129
1130 # ----------------------- #
1131 # Checks for structures.  #
1132 # ----------------------- #
1133
1134 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1135
1136 # ------------------ #
1137 # Checks for types.  #
1138 # ------------------ #
1139
1140 AC_TYPE_SIGNAL
1141 AC_CHECK_TYPES(socklen_t, [], [],
1142 [#include <sys/types.h>
1143 #include <sys/socket.h>
1144 ])
1145
1146 # ------------------------------------- #
1147 # Checks for compiler characteristics.  #
1148 # ------------------------------------- #
1149
1150 AC_C_CONST
1151 AC_C_INLINE
1152 AC_C_BIGENDIAN
1153
1154 # ------------------------------ #
1155 # Checks for library functions.  #
1156 # ------------------------------ #
1157
1158 AC_FUNC_ALLOCA
1159 AC_FUNC_MMAP
1160 AC_FUNC_VFORK
1161 AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid getgid \
1162                 pipe poll pread pread64 pwrite readlink resize_term \
1163                 sbrk setpgid setpgrp setsid \
1164                 sigaction sigprocmask sigsetmask socketpair \
1165                 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1166                 setrlimit getrlimit posix_madvise waitpid lstat \
1167                 ptrace64])
1168 AM_LANGINFO_CODESET
1169 GDB_AC_COMMON
1170
1171 # Check the return and argument types of ptrace.  No canned test for
1172 # this, so roll our own.
1173 gdb_ptrace_headers='
1174 #include <sys/types.h>
1175 #if HAVE_SYS_PTRACE_H
1176 # include <sys/ptrace.h>
1177 #endif
1178 #if HAVE_UNISTD_H
1179 # include <unistd.h>
1180 #endif
1181 '
1182 # There is no point in checking if we don't have a prototype.
1183 AC_CHECK_DECLS(ptrace, [], [
1184   : ${gdb_cv_func_ptrace_ret='int'}
1185   : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1186 ], $gdb_ptrace_headers)
1187 # Check return type.  Varargs (used on GNU/Linux) conflict with the
1188 # empty argument list, so check for that explicitly.
1189 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
1190   AC_TRY_COMPILE($gdb_ptrace_headers,
1191     [extern long ptrace (enum __ptrace_request, ...);],
1192     gdb_cv_func_ptrace_ret='long',
1193     AC_TRY_COMPILE($gdb_ptrace_headers,
1194       [extern int ptrace ();],
1195       gdb_cv_func_ptrace_ret='int',
1196       gdb_cv_func_ptrace_ret='long')))
1197 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
1198   [Define as the return type of ptrace.])
1199 # Check argument types.
1200 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
1201   AC_TRY_COMPILE($gdb_ptrace_headers,
1202     [extern long ptrace (enum __ptrace_request, ...);],
1203     [gdb_cv_func_ptrace_args='int,int,long,long'],[
1204 for gdb_arg1 in 'int' 'long'; do
1205  for gdb_arg2 in 'pid_t' 'int' 'long'; do
1206   for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
1207    for gdb_arg4 in 'int' 'long' 'void *'; do
1208      AC_TRY_COMPILE($gdb_ptrace_headers, [
1209 extern $gdb_cv_func_ptrace_ret
1210   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
1211 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
1212     break 4;])
1213     for gdb_arg5 in 'int *' 'int' 'long'; do
1214      AC_TRY_COMPILE($gdb_ptrace_headers, [
1215 extern $gdb_cv_func_ptrace_ret
1216   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
1217 ], [
1218 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
1219     break 5;])
1220     done
1221    done
1222   done
1223  done
1224 done
1225 # Provide a safe default value.
1226 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1227 ])])
1228 ac_save_IFS=$IFS; IFS=','
1229 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
1230 IFS=$ac_save_IFS
1231 shift
1232 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
1233   [Define to the type of arg 3 for ptrace.])
1234 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG4, $[4],
1235   [Define to the type of arg 4 for ptrace.])
1236 if test -n "$[5]"; then
1237   AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
1238     [Define to the type of arg 5 for ptrace.])
1239 fi
1240
1241 dnl AC_FUNC_SETPGRP does not work when cross compiling
1242 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1243 if test "$cross_compiling" = no; then
1244   AC_FUNC_SETPGRP
1245 else
1246   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1247     [AC_TRY_COMPILE([
1248 #include <unistd.h>
1249 ], [
1250   if (setpgrp(1,1) == -1)
1251     exit (0);
1252   else
1253     exit (1);
1254 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1255 if test $ac_cv_func_setpgrp_void = yes; then
1256   AC_DEFINE(SETPGRP_VOID, 1)
1257 fi
1258 fi
1259
1260 # Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do
1261 # since sigsetjmp might only be defined as a macro.
1262 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
1263 [AC_TRY_COMPILE([
1264 #include <setjmp.h>
1265 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
1266 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
1267 if test $gdb_cv_func_sigsetjmp = yes; then
1268   AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
1269 fi
1270
1271 # Assume we'll default to using the included libiberty regex.
1272 gdb_use_included_regex=yes
1273
1274 # However, if the system regex is GNU regex, then default to *not*
1275 # using the included regex.
1276 AC_CACHE_CHECK(
1277   [for GNU regex],
1278   [gdb_cv_have_gnu_regex],
1279   [AC_TRY_COMPILE(
1280     [#include <gnu-versions.h>],
1281     [#define REGEX_INTERFACE_VERSION 1
1282 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1283 # error "Version mismatch"
1284 #endif],
1285     gdb_cv_have_gnu_regex=yes,
1286     gdb_cv_have_gnu_regex=no)])
1287 if test $gdb_cv_have_gnu_regex = yes; then
1288   gdb_use_included_regex=no
1289 fi
1290
1291 AC_ARG_WITH(included-regex,
1292   AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1293   gdb_with_regex=$withval,
1294   gdb_with_regex=$gdb_use_included_regex)
1295 if test "$gdb_with_regex" = yes; then
1296   AC_DEFINE(USE_INCLUDED_REGEX, 1,
1297     [Define to 1 if the regex included in libiberty should be used.])
1298 fi
1299
1300 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1301 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1302 [#include <sys/param.h>
1303 #include <sys/proc.h>
1304 ])
1305
1306 # See if <sys/lwp.h> defines `struct lwp`.
1307 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1308 [AC_TRY_COMPILE([#include <sys/param.h>
1309 #include <sys/lwp.h>], [struct lwp l;],
1310 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1311 if test $gdb_cv_struct_lwp = yes; then
1312   AC_DEFINE(HAVE_STRUCT_LWP, 1,
1313             [Define to 1 if your system has struct lwp.])
1314 fi
1315
1316 # See if <machine/reg.h> degines `struct reg'.
1317 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1318 [AC_TRY_COMPILE([#include <sys/types.h>
1319 #include <machine/reg.h>], [struct reg r;],
1320 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1321 if test $gdb_cv_struct_reg = yes; then
1322   AC_DEFINE(HAVE_STRUCT_REG, 1,
1323             [Define to 1 if your system has struct reg in <machine/reg.h>.])
1324 fi
1325
1326 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1327 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1328 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1329                  [#include <machine/reg.h>])
1330
1331 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1332 # Older amd64 Linux's don't have the fs_base and gs_base members of
1333 # `struct user_regs_struct'.
1334 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1335                  [], [], [#include <sys/user.h>])
1336
1337 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1338 AC_MSG_CHECKING(for PTRACE_GETREGS)
1339 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1340 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1341                 [PTRACE_GETREGS;],
1342                 [gdb_cv_have_ptrace_getregs=yes],
1343                 [gdb_cv_have_ptrace_getregs=no])])
1344 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1345 if test $gdb_cv_have_ptrace_getregs = yes; then
1346   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1347   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1348 fi
1349
1350 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1351 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1352 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1353 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1354                 [PTRACE_GETFPXREGS;],
1355                 [gdb_cv_have_ptrace_getfpxregs=yes],
1356                 [gdb_cv_have_ptrace_getfpxregs=no])])
1357 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1358 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1359   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1360   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1361 fi
1362
1363 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1364 AC_MSG_CHECKING(for PT_GETDBREGS)
1365 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1366 [AC_TRY_COMPILE([#include <sys/types.h>
1367 #include <sys/ptrace.h>],
1368                 [PT_GETDBREGS;],
1369                 [gdb_cv_have_pt_getdbregs=yes],
1370                 [gdb_cv_have_pt_getdbregs=no])])
1371 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1372 if test $gdb_cv_have_pt_getdbregs = yes; then
1373   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1374   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1375 fi
1376
1377 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1378 AC_MSG_CHECKING(for PT_GETXMMREGS)
1379 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1380 [AC_TRY_COMPILE([#include <sys/types.h>
1381 #include <sys/ptrace.h>],
1382                 [PT_GETXMMREGS;],
1383                 [gdb_cv_have_pt_getxmmregs=yes],
1384                 [gdb_cv_have_pt_getxmmregs=no])])
1385 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1386 if test $gdb_cv_have_pt_getxmmregs = yes; then
1387   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1388   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1389 fi
1390
1391 # Detect which type of /proc is in use, such as for Solaris.
1392
1393 if test "${target}" = "${host}"; then
1394   case "${host}" in
1395   *-*-sysv4.2* | *-*-sysv5* )
1396       AC_DEFINE(NEW_PROC_API, 1,
1397       [Define if you want to use new multi-fd /proc interface.])
1398       ;;
1399   *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1400       AC_DEFINE(NEW_PROC_API, 1,
1401       [Define if you want to use new multi-fd /proc interface.])
1402       ;;
1403   mips-sgi-irix5*)
1404       # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1405       AC_DEFINE([_KMEMUSER], 1,
1406       [Define to 1 so <sys/proc.h> gets a definition of anon_hdl.  Works
1407        around a <sys/proc.h> problem on IRIX 5.])
1408       ;;
1409   esac
1410 fi
1411
1412 if test "$ac_cv_header_sys_procfs_h" = yes; then
1413   BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1414   BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1415   BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1416   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1417   BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1418   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1419   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1420   BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1421   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1422   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1423   BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1424
1425
1426   dnl Check for broken prfpregset_t type
1427
1428   dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1429   dnl prfpregset_t type (it's a typedef for the pointer to a struct
1430   dnl instead of the struct itself).  We detect this here, and work
1431   dnl around it in gdb_proc_service.h.
1432
1433   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1434     AC_MSG_CHECKING(whether prfpregset_t type is broken)
1435     AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1436       [AC_TRY_RUN([#include <sys/procfs.h>
1437        int main ()
1438        {
1439          if (sizeof (prfpregset_t) == sizeof (void *))
1440            return 1;
1441          return 0;
1442        }],
1443        gdb_cv_prfpregset_t_broken=no,
1444        gdb_cv_prfpregset_t_broken=yes,
1445        gdb_cv_prfpregset_t_broken=yes)])
1446     AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1447     if test $gdb_cv_prfpregset_t_broken = yes; then
1448       AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1449       [Define if the prfpregset_t type is broken.])
1450     fi
1451   fi
1452 fi
1453
1454 # Check if the compiler supports the `long long' type.
1455
1456 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1457                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1458 [[extern long long foo;]],
1459 [[switch (foo & 2) { case 0: return 1; }]])],
1460                                   gdb_cv_c_long_long=yes,
1461                                   gdb_cv_c_long_long=no)])
1462 if test $gdb_cv_c_long_long != yes; then
1463   # libdecnumber requires long long.
1464   AC_MSG_ERROR([Compiler must support long long for GDB.])
1465 fi
1466
1467 # Check if the compiler and runtime support printing long longs.
1468
1469 AC_CACHE_CHECK([for long long support in printf],
1470                gdb_cv_printf_has_long_long,
1471                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1472 [[char buf[32];
1473   long long l = 0;
1474   l = (l << 16) + 0x0123;
1475   l = (l << 16) + 0x4567;
1476   l = (l << 16) + 0x89ab;
1477   l = (l << 16) + 0xcdef;
1478   sprintf (buf, "0x%016llx", l);
1479   return (strcmp ("0x0123456789abcdef", buf));]])],
1480                               gdb_cv_printf_has_long_long=yes,
1481                               gdb_cv_printf_has_long_long=no,
1482                               gdb_cv_printf_has_long_long=no)])
1483 if test $gdb_cv_printf_has_long_long = yes; then
1484   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1485             [Define to 1 if the "%ll" format works to print long longs.])
1486 fi
1487
1488 # Check if the compiler and runtime support printing decfloats.
1489
1490 AC_CACHE_CHECK([for decfloat support in printf],
1491                gdb_cv_printf_has_decfloat,
1492                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1493 [[char buf[64];
1494   _Decimal32 d32 = 1.2345df;
1495   _Decimal64 d64 = 1.2345dd;
1496   _Decimal128 d128 = 1.2345dl;
1497   sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1498   return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1499                               gdb_cv_printf_has_decfloat=yes,
1500                               gdb_cv_printf_has_decfloat=no,
1501                               gdb_cv_printf_has_decfloat=no)])
1502 if test $gdb_cv_printf_has_decfloat = yes; then
1503   AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1504             [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1505 fi
1506
1507 # Check if the compiler supports the `long double' type.  We can't use
1508 # AC_C_LONG_DOUBLE because that one does additional checks on the
1509 # constants defined in <float.h> that fail on some systems,
1510 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1511
1512 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1513                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1514                                   gdb_cv_c_long_double=yes,
1515                                   gdb_cv_c_long_double=no)])
1516 if test $gdb_cv_c_long_double = yes; then
1517   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1518            [Define to 1 if the compiler supports long double.])
1519 fi
1520
1521 # Check if the compiler and runtime support printing long doubles.
1522
1523 AC_CACHE_CHECK([for long double support in printf],
1524                gdb_cv_printf_has_long_double,
1525                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1526 [[char buf[16];
1527   long double f = 3.141592653;
1528   sprintf (buf, "%Lg", f);
1529   return (strncmp ("3.14159", buf, 7));]])],
1530                               gdb_cv_printf_has_long_double=yes,
1531                               gdb_cv_printf_has_long_double=no,
1532                               gdb_cv_printf_has_long_double=no)])
1533 if test $gdb_cv_printf_has_long_double = yes; then
1534   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1535             [Define to 1 if the "%Lg" format works to print long doubles.])
1536 fi
1537
1538 # Check if the compiler and runtime support scanning long doubles.
1539
1540 AC_CACHE_CHECK([for long double support in scanf],
1541                gdb_cv_scanf_has_long_double,
1542                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1543 [[#include <stdio.h>]],
1544 [[char *buf = "3.141592653";
1545   long double f = 0;
1546   sscanf (buf, "%Lg", &f);
1547   return !(f > 3.14159 && f < 3.14160);]])],
1548                               gdb_cv_scanf_has_long_double=yes,
1549                               gdb_cv_scanf_has_long_double=no,
1550                               gdb_cv_scanf_has_long_double=no)])
1551 if test $gdb_cv_scanf_has_long_double = yes; then
1552   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1553             [Define to 1 if the "%Lg" format works to scan long doubles.])
1554 fi
1555
1556 case ${host_os} in
1557 aix*)
1558   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1559     SAVE_LDFLAGS=$LDFLAGS
1560
1561     case $GCC in
1562     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1563     *) gdb_cv_bigtoc=-bbigtoc ;;
1564     esac
1565
1566     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1567     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1568     LDFLAGS="${SAVE_LDFLAGS}"
1569   ])
1570   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1571   ;;
1572 esac
1573
1574 AC_MSG_CHECKING(for the dynamic export flag)
1575 dynamic_list=false
1576 if test "${gdb_native}" = yes; then
1577    # The dynamically loaded libthread_db needs access to symbols in the gdb
1578    # executable.  Older GNU ld supports --export-dynamic but --dynamic-list
1579    # may not be supported there.
1580    old_LDFLAGS="$LDFLAGS"
1581    # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1582    RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1583    LDFLAGS="$LDFLAGS $RDYNAMIC"
1584    if test "${have_libpython}" = no; then
1585      AC_TRY_LINK([], [], [dynamic_list=true])
1586    else
1587      # Workaround http://bugs.python.org/issue4434 where static
1588      # libpythonX.Y.a would get its symbols required for
1589      # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1590      # Problem does not happen for the recommended libpythonX.Y.so linkage.
1591      old_CFLAGS="$CFLAGS"
1592      CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1593      old_LIBS="$LIBS"
1594      LIBS="$LIBS $PYTHON_LIBS"
1595      AC_RUN_IFELSE(
1596        AC_LANG_PROGRAM(
1597          [#include "]${have_libpython}[/Python.h"],
1598          [int err;
1599           Py_Initialize ();
1600           err = PyRun_SimpleString ("import itertools\n");
1601           Py_Finalize ();
1602           return err == 0 ? 0 : 1;]),
1603        [dynamic_list=true], [], [true])
1604      LIBS="$old_LIBS"
1605      CFLAGS="$old_CFLAGS"
1606    fi
1607    LDFLAGS="$old_LDFLAGS"
1608 fi
1609 if $dynamic_list; then
1610   found="-Wl,--dynamic-list"
1611   RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1612 else
1613   found="-rdynamic"
1614   RDYNAMIC="-rdynamic"
1615 fi
1616 AC_SUBST(RDYNAMIC)
1617 AC_MSG_RESULT($found)
1618
1619 dnl For certain native configurations, we need to check whether thread
1620 dnl support can be built in or not.
1621 dnl
1622 dnl Note that we only want this if we are both native (host == target),
1623 dnl and not doing a canadian cross build (build == host).
1624
1625 if test ${build} = ${host} -a ${host} = ${target} ; then
1626    case ${host_os} in
1627    solaris*)
1628       # See if thread_db library is around for Solaris thread debugging.
1629       # Note that we must explicitly test for version 1 of the library
1630       # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1631       # the same API.
1632       AC_MSG_CHECKING(for Solaris thread debugging library)
1633       if test -f /usr/lib/libthread_db.so.1 ; then
1634          AC_MSG_RESULT(yes)
1635          AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1636          [Define if using Solaris thread debugging.])
1637          CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1638          CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1639          AC_CHECK_LIB(dl, dlopen)
1640          CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1641          # Sun randomly tweaked the prototypes in <proc_service.h>
1642          # at one point.
1643          AC_MSG_CHECKING(if <proc_service.h> is old)
1644          AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1645             AC_TRY_COMPILE([
1646                 #include <proc_service.h>
1647                 ps_err_e ps_pdwrite
1648                     (struct ps_prochandle*, psaddr_t, const void*, size_t);
1649             ],, gdb_cv_proc_service_is_old=no,
1650                 gdb_cv_proc_service_is_old=yes)
1651          ])
1652          AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1653          if test $gdb_cv_proc_service_is_old = yes; then
1654             AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1655             [Define if <proc_service.h> on solaris uses int instead of
1656              size_t, and assorted other type changes.])
1657          fi
1658       else
1659          AC_MSG_RESULT(no)
1660       fi
1661       ;;
1662    aix*)
1663       AC_MSG_CHECKING(for AiX thread debugging library)
1664       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1665                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1666                                    [#ifndef PTHDB_VERSION_3
1667                                     #error
1668                                     #endif],
1669                                    gdb_cv_have_aix_thread_debug=yes,
1670                                    gdb_cv_have_aix_thread_debug=no)])
1671       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1672       if test $gdb_cv_have_aix_thread_debug = yes; then
1673          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1674          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1675          LIBS="$LIBS -lpthdebug"
1676
1677          # Older versions of AIX do not provide the declaration for
1678          # the getthrds function (it appears that it was introduced
1679          # with AIX 6.x).
1680          AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1681       fi
1682       ;;
1683    esac
1684    AC_SUBST(CONFIG_LDFLAGS)
1685 fi
1686
1687 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1688 dnl other error codes.
1689 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1690    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1691                   gdb_cv_thread_db_h_has_td_notalloc,
1692      AC_TRY_COMPILE(
1693        [#include <thread_db.h>],
1694        [int i = TD_NOTALLOC;],
1695        gdb_cv_thread_db_h_has_td_notalloc=yes,
1696        gdb_cv_thread_db_h_has_td_notalloc=no
1697      )
1698    )
1699    AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1700                   gdb_cv_thread_db_h_has_td_version,
1701      AC_TRY_COMPILE(
1702        [#include <thread_db.h>],
1703        [int i = TD_VERSION;],
1704        gdb_cv_thread_db_h_has_td_version=yes,
1705        gdb_cv_thread_db_h_has_td_version=no
1706      )
1707    )
1708    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1709                   gdb_cv_thread_db_h_has_td_notls,
1710      AC_TRY_COMPILE(
1711        [#include <thread_db.h>],
1712        [int i = TD_NOTLS;],
1713        gdb_cv_thread_db_h_has_td_notls=yes,
1714        gdb_cv_thread_db_h_has_td_notls=no
1715      )
1716    )
1717 fi
1718 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1719   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1720             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1721 fi
1722 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1723   AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1724             [Define if <thread_db.h> has the TD_VERSION error code.])
1725 fi
1726 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1727   AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1728             [Define if <thread_db.h> has the TD_NOTLS error code.])
1729 fi
1730
1731 dnl See if we have a sys/syscall header file that has __NR_tkill.
1732 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1733    AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1734                   gdb_cv_sys_syscall_h_has_tkill,
1735      AC_TRY_COMPILE(
1736        [#include <sys/syscall.h>],
1737        [int i = __NR_tkill;],
1738        gdb_cv_sys_syscall_h_has_tkill=yes,
1739        gdb_cv_sys_syscall_h_has_tkill=no
1740      )
1741    )
1742 fi
1743 dnl See if we can issue tkill syscall.
1744 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes"; then
1745   AC_CHECK_FUNC(syscall,
1746     AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1747   )
1748 fi
1749
1750 dnl Check if we can disable the virtual address space randomization.
1751 dnl The functionality of setarch -R.
1752 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1753 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1754 #      if !HAVE_DECL_ADDR_NO_RANDOMIZE
1755 #       define ADDR_NO_RANDOMIZE 0x0040000
1756 #      endif
1757        /* Test the flag could be set and stays set.  */
1758        personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1759        if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1760            return 1])])
1761 AC_RUN_IFELSE([PERSONALITY_TEST],
1762               [have_personality=true],
1763               [have_personality=false],
1764               [AC_LINK_IFELSE([PERSONALITY_TEST],
1765                               [have_personality=true],
1766                               [have_personality=false])])
1767 if $have_personality
1768 then
1769     AC_DEFINE([HAVE_PERSONALITY], 1,
1770               [Define if you support the personality syscall.])
1771 fi
1772
1773 dnl Set the host's .gdbinit filename.
1774 case $host_os in
1775   go32* | *djgpp*)
1776     gdbinit=gdb.ini
1777     ;;
1778   *)
1779     gdbinit=.gdbinit
1780     ;;
1781 esac
1782 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1783
1784 dnl Handle optional features that can be enabled.
1785
1786 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1787 # except that the argument to --with-sysroot is optional.
1788 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1789 if test "x$with_sysroot" = xyes; then
1790   with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1791 fi
1792 AC_ARG_WITH(sysroot,
1793   AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1794                  [search for usr/lib et al within DIR]),
1795   [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1796 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1797               [search for usr/lib et al within DIR])
1798 AC_SUBST(TARGET_SYSTEM_ROOT)
1799 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1800
1801 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1802     [automatically load a system-wide gdbinit file],
1803     [])
1804
1805 AC_ARG_ENABLE(werror,
1806   AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
1807   [case "${enableval}" in
1808      yes | y) ERROR_ON_WARNING="yes" ;;
1809      no | n)  ERROR_ON_WARNING="no" ;;
1810      *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1811    esac])
1812
1813 # Enable -Werror by default when using gcc.  Turn it off for releases.
1814 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then
1815     ERROR_ON_WARNING=yes
1816 fi
1817
1818 WERROR_CFLAGS=""
1819 if test "${ERROR_ON_WARNING}" = yes ; then
1820     WERROR_CFLAGS="-Werror"
1821 fi
1822
1823 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
1824 -Wpointer-sign \
1825 -Wno-unused -Wunused-value -Wunused-function \
1826 -Wno-switch -Wno-char-subscripts -Wmissing-prototypes \
1827 -Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type \
1828 -Wold-style-declaration -Wold-style-definition"
1829
1830 # Enable -Wno-format by default when using gcc on mingw since many
1831 # GCC versions complain about %I64.
1832 case "${host}" in
1833   *-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;
1834   *) build_warnings="$build_warnings -Wformat-nonliteral" ;;
1835 esac
1836
1837 AC_ARG_ENABLE(build-warnings,
1838 AS_HELP_STRING([--enable-build-warnings], [enable build-time compiler warnings if gcc is used]),
1839 [case "${enableval}" in
1840   yes)  ;;
1841   no)   build_warnings="-w";;
1842   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1843         build_warnings="${build_warnings} ${t}";;
1844   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1845         build_warnings="${t} ${build_warnings}";;
1846   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1847 esac
1848 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1849   echo "Setting compiler warning flags = $build_warnings" 6>&1
1850 fi])dnl
1851 AC_ARG_ENABLE(gdb-build-warnings,
1852 AS_HELP_STRING([--enable-gdb-build-warnings], [enable GDB specific build-time compiler warnings if gcc is used]),
1853 [case "${enableval}" in
1854   yes)  ;;
1855   no)   build_warnings="-w";;
1856   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1857         build_warnings="${build_warnings} ${t}";;
1858   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1859         build_warnings="${t} ${build_warnings}";;
1860   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1861 esac
1862 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1863   echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
1864 fi])dnl
1865 WARN_CFLAGS=""
1866 if test "x${build_warnings}" != x -a "x$GCC" = xyes
1867 then
1868     AC_MSG_CHECKING(compiler warning flags)
1869     # Separate out the -Werror flag as some files just cannot be
1870     # compiled with it enabled.
1871     for w in ${build_warnings}; do
1872         case $w in
1873         -Werr*) WERROR_CFLAGS=-Werror ;;
1874         *) # Check that GCC accepts it
1875             saved_CFLAGS="$CFLAGS"
1876             CFLAGS="$CFLAGS $w"
1877             AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
1878             CFLAGS="$saved_CFLAGS"
1879         esac
1880     done
1881     AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
1882 fi
1883 AC_SUBST(WARN_CFLAGS)
1884 AC_SUBST(WERROR_CFLAGS)
1885
1886 # In the Cygwin environment, we need some additional flags.
1887 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1888 [AC_EGREP_CPP(^lose$, [
1889 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1890 lose
1891 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1892
1893
1894 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1895 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1896 case ${host} in
1897   *go32* ) SER_HARDWIRE=ser-go32.o ;;
1898   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1899   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1900 esac
1901 AC_SUBST(SER_HARDWIRE)
1902
1903 # libreadline needs libuser32.a in a cygwin environment
1904 WIN32LIBS=
1905 if test x$gdb_cv_os_cygwin = xyes; then
1906     WIN32LIBS="-luser32"
1907     case "${target}" in
1908         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1909         ;;
1910     esac
1911 fi
1912
1913 # The ser-tcp.c module requires sockets.
1914 case ${host} in
1915   *mingw32*)
1916     AC_DEFINE(USE_WIN32API, 1,
1917               [Define if we should use the Windows API, instead of the
1918                POSIX API.  On Windows, we use the Windows API when
1919                building for MinGW, but the POSIX API when building
1920                for Cygwin.])
1921     WIN32LIBS="$WIN32LIBS -lws2_32"
1922     ;;
1923 esac
1924 AC_SUBST(WIN32LIBS)
1925
1926 # Add ELF support to GDB, but only if BFD includes ELF support.
1927 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1928                  [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1929 if test $gdb_cv_var_elf = yes; then
1930   CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o"
1931   AC_DEFINE(HAVE_ELF, 1,
1932             [Define if ELF support should be included.])
1933   # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1934   if test "$plugins" = "yes"; then
1935     AC_SEARCH_LIBS(dlopen, dl)
1936   fi
1937 fi
1938
1939 # Add macho support to GDB, but only if BFD includes it.
1940 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1941                  [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1942 if test $gdb_cv_var_macho = yes; then
1943   CONFIG_OBS="$CONFIG_OBS machoread.o"
1944 fi
1945
1946 # Add SOM support to GDB, but only if BFD includes it.
1947 GDB_AC_CHECK_BFD([for SOM support in BFD], gdb_cv_var_som,
1948                  [bfd_som_attach_aux_hdr (NULL, 0, NULL)], som.h)
1949 if test $gdb_cv_var_som = yes; then
1950   CONFIG_OBS="$CONFIG_OBS somread.o"
1951 fi
1952
1953 # Add any host-specific objects to GDB.
1954 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1955
1956 # If building on ELF, look for lzma support for embedded compressed debug info.
1957 if test $gdb_cv_var_elf = yes; then
1958   AC_ARG_WITH(lzma,
1959     AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1960     [], [with_lzma=auto])
1961   AC_MSG_CHECKING([whether to use lzma])
1962   AC_MSG_RESULT([$with_lzma])
1963
1964   if test "${with_lzma}" != no; then
1965     AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1966                           [lzma_index_iter iter;
1967                            lzma_index_iter_init (&iter, 0);
1968                            lzma_mf_is_supported (LZMA_MF_HC3);])
1969     if test "$HAVE_LIBLZMA" != yes; then
1970       if test "$with_lzma" = yes; then
1971         AC_MSG_ERROR([missing liblzma for --with-lzma])
1972       fi
1973     fi
1974   fi
1975 fi
1976
1977 LIBGUI="../libgui/src/libgui.a"
1978 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1979 AC_SUBST(LIBGUI)
1980 AC_SUBST(GUI_CFLAGS_X)
1981
1982 WIN32LDAPP=
1983 AC_SUBST(WIN32LIBS)
1984 AC_SUBST(WIN32LDAPP)
1985
1986 case "${host}" in
1987 *-*-cygwin* | *-*-mingw* )
1988     configdir="win"
1989     ;;
1990 *)
1991     configdir="unix"
1992     ;;
1993 esac
1994
1995 GDBTKLIBS=
1996 if test "${enable_gdbtk}" = "yes"; then
1997
1998     # Gdbtk must have an absolute path to srcdir in order to run
1999     # properly when not installed.
2000     here=`pwd`
2001     cd ${srcdir}
2002     GDBTK_SRC_DIR=`pwd`
2003     cd $here
2004
2005     SC_PATH_TCLCONFIG
2006
2007     # If $no_tk is nonempty, then we can't do Tk, and there is no
2008     # point to doing Tcl.
2009     SC_PATH_TKCONFIG
2010
2011     if test -z "${no_tcl}" -a -z "${no_tk}"; then
2012         SC_LOAD_TCLCONFIG
2013
2014         # Check for in-tree tcl
2015         here=`pwd`
2016         cd ${srcdir}/..
2017         topdir=`pwd`
2018         cd ${here}
2019
2020         intree="no"
2021         if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2022           intree="yes"
2023         fi
2024
2025         # Find Tcl private headers
2026         if test x"${intree}" = xno; then
2027           CY_AC_TCL_PRIVATE_HEADERS
2028           TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2029           TCL_LIBRARY="${TCL_LIB_SPEC}"
2030           TCL_DEPS=""
2031         else
2032           # If building tcl in the same src tree, private headers
2033           # are not needed, but we need to be sure to use the right
2034           # headers library
2035           TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2036           TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2037           TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2038         fi
2039         AC_SUBST(TCL_INCLUDE)
2040         AC_SUBST(TCL_LIBRARY)
2041         AC_SUBST(TCL_DEPS)
2042
2043         SC_LOAD_TKCONFIG
2044
2045         # Check for in-tree Tk
2046         intree="no"
2047         if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2048           intree="yes"
2049         fi
2050
2051         # Find Tk private headers
2052         if test x"${intree}" = xno; then
2053           CY_AC_TK_PRIVATE_HEADERS
2054           TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2055           TK_LIBRARY=${TK_LIB_SPEC}
2056           TK_DEPS=""
2057         else
2058           TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2059           TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2060           TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2061         fi
2062         AC_SUBST(TK_INCLUDE)
2063         AC_SUBST(TK_LIBRARY)
2064         AC_SUBST(TK_DEPS)
2065         AC_SUBST(TK_XINCLUDES)
2066
2067         ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2068
2069         # Include some libraries that Tcl and Tk want.
2070         TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2071         # Yes, the ordering seems wrong here.  But it isn't.
2072         # TK_LIBS is the list of libraries that need to be linked
2073         # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
2074         # were in LIBS then any link tests after this point would
2075         # try to include things like `$(LIBGUI)', which wouldn't work.
2076         GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2077
2078         CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2079         CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2080         CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2081         CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2082         CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2083         CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2084         CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2085
2086         if test x$gdb_cv_os_cygwin = xyes; then
2087           WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2088           WIN32LDAPP="-Wl,--subsystem,console"
2089           CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2090         fi
2091
2092         AC_CONFIG_SUBDIRS(gdbtk)
2093     fi
2094 fi
2095
2096 AC_SUBST(X_CFLAGS)
2097 AC_SUBST(X_LDFLAGS)
2098 AC_SUBST(X_LIBS)
2099 AC_SUBST(GDBTKLIBS)
2100 AC_SUBST(GDBTK_CFLAGS)
2101 AC_SUBST(GDBTK_SRC_DIR)
2102
2103 AC_PATH_X
2104
2105 # Unlike the sim directory, whether a simulator is linked is controlled by
2106 # presence of a gdb_sim definition in the target configure.tgt entry.
2107 # This code just checks for a few cases where we'd like to ignore those
2108 # definitions, even when they're present in the '.mt' file.  These cases
2109 # are when --disable-sim is specified, or if the simulator directory is
2110 # not part of the source tree.
2111 #
2112 AC_ARG_ENABLE(sim,
2113 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2114 [echo "enable_sim = $enable_sim";
2115  echo "enableval = ${enableval}";
2116  case "${enableval}" in
2117   yes) ignore_sim=false ;;
2118   no)  ignore_sim=true ;;
2119   *)   ignore_sim=false ;;
2120  esac],
2121 [ignore_sim=false])
2122
2123 if test ! -d "${srcdir}/../sim"; then
2124   ignore_sim=true
2125 fi
2126
2127 SIM=
2128 SIM_OBS=
2129 if test "${ignore_sim}" = "false"; then
2130   if test x"${gdb_sim}" != x ; then
2131     SIM="${gdb_sim}"
2132     SIM_OBS="remote-sim.o"
2133     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2134   fi
2135 fi
2136 AC_SUBST(SIM)
2137 AC_SUBST(SIM_OBS)
2138
2139 AC_SUBST(ENABLE_CFLAGS)
2140 AC_SUBST(PROFILE_CFLAGS)
2141
2142 AC_SUBST(CONFIG_OBS)
2143 AC_SUBST(CONFIG_DEPS)
2144 AC_SUBST(CONFIG_SRCS)
2145 AC_SUBST(CONFIG_ALL)
2146 AC_SUBST(CONFIG_CLEAN)
2147 AC_SUBST(CONFIG_INSTALL)
2148 AC_SUBST(CONFIG_UNINSTALL)
2149
2150 # List of host floatformats.
2151 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2152 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2153 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2154
2155 # target_subdir is used by the testsuite to find the target libraries.
2156 target_subdir=
2157 if test "${host}" != "${target}"; then
2158     target_subdir="${target_alias}/"
2159 fi
2160 AC_SUBST(target_subdir)
2161
2162 frags=
2163 if test "${gdb_native}" = "yes"; then
2164   host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2165   if test ! -f ${host_makefile_frag}; then
2166     AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2167   fi
2168   frags="$frags $host_makefile_frag"
2169 else
2170   host_makefile_frag=/dev/null
2171 fi
2172
2173 AC_SUBST_FILE(host_makefile_frag)
2174 AC_SUBST(frags)
2175
2176 changequote(,)dnl
2177 if test "${gdb_native}" = "yes"; then
2178 # We pick this up from the host configuration file (.mh) because we
2179 # do not have a native configuration Makefile fragment.
2180 nativefile=`sed -n '
2181 s/NAT_FILE[     ]*=[    ]*\([^  ]*\)/\1/p
2182 ' ${host_makefile_frag}`
2183 fi
2184 changequote([,])
2185
2186 if test x"${gdb_osabi}" != x ; then
2187     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2188                        [Define to the default OS ABI for this configuration.])
2189 fi
2190
2191 # Enable multi-ice-gdb-server.
2192 AC_ARG_ENABLE(multi-ice,
2193 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2194   [case $enableval in
2195     yes | no)
2196       ;;
2197     *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2198   esac])
2199 if test "x$enable_multi_ice" = xyes; then
2200    AC_CONFIG_SUBDIRS(multi-ice)
2201 fi
2202
2203 AC_ARG_ENABLE(gdbserver,
2204 AS_HELP_STRING([--enable-gdbserver],
2205                [automatically build gdbserver (yes/no/auto, default is auto)]),
2206 [case "${enableval}" in
2207   yes| no|auto) ;;
2208   *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2209 esac],[enable_gdbserver=auto])
2210
2211 # We only build gdbserver automatically in a native configuration, and
2212 # only if the user did not explicitly disable its build.
2213 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2214   AC_MSG_CHECKING(whether gdbserver is supported on this host)
2215   if test "x$build_gdbserver" = xyes; then
2216     AC_MSG_RESULT(yes)
2217     AC_CONFIG_SUBDIRS(gdbserver)
2218     gdbserver_build_enabled=yes
2219   else
2220     AC_MSG_RESULT(no)
2221   fi
2222 fi
2223
2224 # If the user explicitly request the gdbserver to be built, verify that
2225 # we were in fact able to enable it.
2226 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2227   AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2228 fi
2229
2230 # Check for babeltrace and babeltrace-ctf
2231 AC_ARG_WITH(babeltrace,
2232   AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2233   [], [with_babeltrace=auto])
2234 AC_MSG_CHECKING([whether to use babeltrace])
2235 AC_MSG_RESULT([$with_babeltrace])
2236
2237 if test "x$with_babeltrace" = "xno"; then
2238   AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2239 else
2240   # Append -Werror to CFLAGS so that configure can catch the warning
2241   # "assignment from incompatible pointer type", which is related to
2242   # the babeltrace change from 1.0.3 to 1.1.0.  Babeltrace 1.1.0 works
2243   # in GDB, while babeltrace 1.0.3 is broken.
2244   # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2245   # safe to save and restore CFLAGS here.
2246   saved_CFLAGS=$CFLAGS
2247   CFLAGS="$CFLAGS -Werror"
2248   AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2249                         [#include <babeltrace/babeltrace.h>
2250                          #include <babeltrace/ctf/events.h>
2251                          #include <babeltrace/ctf/iterator.h>],
2252                         [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2253                         struct bt_ctf_event *event = NULL;
2254                         const struct bt_definition *scope;
2255
2256                         scope = bt_ctf_get_top_level_scope (event,
2257                                                            BT_STREAM_EVENT_HEADER);
2258                         bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2259                         ])
2260   CFLAGS=$saved_CFLAGS
2261
2262   if test "$HAVE_LIBBABELTRACE" != yes; then
2263      if test "$with_babeltrace" = yes; then
2264        AC_MSG_ERROR([babeltrace is missing or unusable])
2265      else
2266        AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2267      fi
2268   fi
2269 fi
2270
2271 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2272 # to an empty version.
2273
2274 files=
2275 links=
2276
2277 rm -f nm.h
2278 if test "${nativefile}" != ""; then
2279     case "${nativefile}" in
2280       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2281       * ) GDB_NM_FILE="${nativefile}"
2282     esac
2283     files="${files} ${GDB_NM_FILE}"
2284     links="${links} nm.h"
2285     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2286 fi
2287 AC_SUBST(GDB_NM_FILE)
2288
2289 AC_LINK_FILES($files, $links)
2290
2291 dnl Check for exe extension set on certain hosts (e.g. Win32)
2292 AC_EXEEXT
2293
2294 dnl  Detect the character set used by this host.
2295 dnl  At the moment, we just assume it's UTF-8.
2296 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2297           [Define to be a string naming the default host character set.])
2298
2299 # Undo the $ec_script escaping suitable for Makefile.
2300 transform=`echo "$program_transform_name" | sed -e 's/[\\$][\\$]/\\$/g'`
2301 GDB_TRANSFORM_NAME=`echo gdb | sed -e "$transform"`
2302 if test "x$GDB_TRANSFORM_NAME" = x; then
2303   GDB_TRANSFORM_NAME=gdb
2304 fi
2305 AC_SUBST(GDB_TRANSFORM_NAME)
2306 GCORE_TRANSFORM_NAME=`echo gcore | sed -e "$transform"`
2307 if test "x$GCORE_TRANSFORM_NAME" = x; then
2308   GCORE_TRANSFORM_NAME=gcore
2309 fi
2310 AC_SUBST(GCORE_TRANSFORM_NAME)
2311 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2312
2313 AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile,
2314 [
2315 case x$CONFIG_HEADERS in
2316 xconfig.h:config.in)
2317 echo > stamp-h ;;
2318 esac
2319 ])
2320
2321 exit 0