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 sys/socket.h proc_service.h \
1079                   thread_db.h signal.h stddef.h \
1080                   stdlib.h string.h memory.h strings.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                   sys/types.h sys/wait.h wait.h termios.h termio.h \
1085                   sgtty.h unistd.h elf_hp.h locale.h \
1086                   dlfcn.h sys/un.h linux/perf_event.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, strerror, strstr, getopt,
1121                 snprintf, vsnprintf])
1122 AM_LC_MESSAGES
1123
1124 # ----------------------- #
1125 # Checks for structures.  #
1126 # ----------------------- #
1127
1128 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1129
1130 # ------------------ #
1131 # Checks for types.  #
1132 # ------------------ #
1133
1134 AC_TYPE_SIGNAL
1135 AC_CHECK_TYPES(socklen_t, [], [],
1136 [#include <sys/types.h>
1137 #include <sys/socket.h>
1138 ])
1139
1140 # ------------------------------------- #
1141 # Checks for compiler characteristics.  #
1142 # ------------------------------------- #
1143
1144 AC_C_CONST
1145 AC_C_INLINE
1146 AC_C_BIGENDIAN
1147
1148 # ------------------------------ #
1149 # Checks for library functions.  #
1150 # ------------------------------ #
1151
1152 AC_FUNC_ALLOCA
1153 AC_FUNC_MMAP
1154 AC_FUNC_VFORK
1155 AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid getgid \
1156                 pipe poll pread pread64 pwrite readlink resize_term \
1157                 sbrk setpgid setpgrp setsid \
1158                 sigaction sigprocmask sigsetmask socketpair syscall \
1159                 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1160                 setrlimit getrlimit posix_madvise waitpid lstat \
1161                 fdwalk pipe2 ptrace64])
1162 AM_LANGINFO_CODESET
1163 GDB_AC_COMMON
1164
1165 # Check the return and argument types of ptrace.  No canned test for
1166 # this, so roll our own.
1167 gdb_ptrace_headers='
1168 #if HAVE_SYS_TYPES_H
1169 # include <sys/types.h>
1170 #endif
1171 #if HAVE_SYS_PTRACE_H
1172 # include <sys/ptrace.h>
1173 #endif
1174 #if HAVE_UNISTD_H
1175 # include <unistd.h>
1176 #endif
1177 '
1178 # There is no point in checking if we don't have a prototype.
1179 AC_CHECK_DECLS(ptrace, [], [
1180   : ${gdb_cv_func_ptrace_ret='int'}
1181   : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1182 ], $gdb_ptrace_headers)
1183 # Check return type.  Varargs (used on GNU/Linux) conflict with the
1184 # empty argument list, so check for that explicitly.
1185 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
1186   AC_TRY_COMPILE($gdb_ptrace_headers,
1187     [extern long ptrace (enum __ptrace_request, ...);],
1188     gdb_cv_func_ptrace_ret='long',
1189     AC_TRY_COMPILE($gdb_ptrace_headers,
1190       [extern int ptrace ();],
1191       gdb_cv_func_ptrace_ret='int',
1192       gdb_cv_func_ptrace_ret='long')))
1193 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
1194   [Define as the return type of ptrace.])
1195 # Check argument types.
1196 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
1197   AC_TRY_COMPILE($gdb_ptrace_headers,
1198     [extern long ptrace (enum __ptrace_request, ...);],
1199     [gdb_cv_func_ptrace_args='int,int,long,long'],[
1200 for gdb_arg1 in 'int' 'long'; do
1201  for gdb_arg2 in 'pid_t' 'int' 'long'; do
1202   for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
1203    for gdb_arg4 in 'int' 'long' 'void *'; do
1204      AC_TRY_COMPILE($gdb_ptrace_headers, [
1205 extern $gdb_cv_func_ptrace_ret
1206   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
1207 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
1208     break 4;])
1209     for gdb_arg5 in 'int *' 'int' 'long'; do
1210      AC_TRY_COMPILE($gdb_ptrace_headers, [
1211 extern $gdb_cv_func_ptrace_ret
1212   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
1213 ], [
1214 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
1215     break 5;])
1216     done
1217    done
1218   done
1219  done
1220 done
1221 # Provide a safe default value.
1222 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1223 ])])
1224 ac_save_IFS=$IFS; IFS=','
1225 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
1226 IFS=$ac_save_IFS
1227 shift
1228 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
1229   [Define to the type of arg 3 for ptrace.])
1230 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG4, $[4],
1231   [Define to the type of arg 4 for ptrace.])
1232 if test -n "$[5]"; then
1233   AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
1234     [Define to the type of arg 5 for ptrace.])
1235 fi
1236
1237 dnl AC_FUNC_SETPGRP does not work when cross compiling
1238 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1239 if test "$cross_compiling" = no; then
1240   AC_FUNC_SETPGRP
1241 else
1242   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1243     [AC_TRY_COMPILE([
1244 #include <unistd.h>
1245 ], [
1246   if (setpgrp(1,1) == -1)
1247     exit (0);
1248   else
1249     exit (1);
1250 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1251 if test $ac_cv_func_setpgrp_void = yes; then
1252   AC_DEFINE(SETPGRP_VOID, 1)
1253 fi
1254 fi
1255
1256 # Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do
1257 # since sigsetjmp might only be defined as a macro.
1258 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
1259 [AC_TRY_COMPILE([
1260 #include <setjmp.h>
1261 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
1262 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
1263 if test $gdb_cv_func_sigsetjmp = yes; then
1264   AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
1265 fi
1266
1267 # Assume we'll default to using the included libiberty regex.
1268 gdb_use_included_regex=yes
1269
1270 # However, if the system regex is GNU regex, then default to *not*
1271 # using the included regex.
1272 AC_CACHE_CHECK(
1273   [for GNU regex],
1274   [gdb_cv_have_gnu_regex],
1275   [AC_TRY_COMPILE(
1276     [#include <gnu-versions.h>],
1277     [#define REGEX_INTERFACE_VERSION 1
1278 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1279 # error "Version mismatch"
1280 #endif],
1281     gdb_cv_have_gnu_regex=yes,
1282     gdb_cv_have_gnu_regex=no)])
1283 if test $gdb_cv_have_gnu_regex = yes; then
1284   gdb_use_included_regex=no
1285 fi
1286
1287 AC_ARG_WITH(included-regex,
1288   AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1289   gdb_with_regex=$withval,
1290   gdb_with_regex=$gdb_use_included_regex)
1291 if test "$gdb_with_regex" = yes; then
1292   AC_DEFINE(USE_INCLUDED_REGEX, 1,
1293     [Define to 1 if the regex included in libiberty should be used.])
1294 fi
1295
1296 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1297 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1298 [#include <sys/param.h>
1299 #include <sys/proc.h>
1300 ])
1301
1302 # See if <sys/lwp.h> defines `struct lwp`.
1303 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1304 [AC_TRY_COMPILE([#include <sys/param.h>
1305 #include <sys/lwp.h>], [struct lwp l;],
1306 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1307 if test $gdb_cv_struct_lwp = yes; then
1308   AC_DEFINE(HAVE_STRUCT_LWP, 1,
1309             [Define to 1 if your system has struct lwp.])
1310 fi
1311
1312 # See if <machine/reg.h> degines `struct reg'.
1313 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1314 [AC_TRY_COMPILE([#include <sys/types.h>
1315 #include <machine/reg.h>], [struct reg r;],
1316 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1317 if test $gdb_cv_struct_reg = yes; then
1318   AC_DEFINE(HAVE_STRUCT_REG, 1,
1319             [Define to 1 if your system has struct reg in <machine/reg.h>.])
1320 fi
1321
1322 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1323 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1324 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1325                  [#include <machine/reg.h>])
1326
1327 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1328 # Older amd64 Linux's don't have the fs_base and gs_base members of
1329 # `struct user_regs_struct'.
1330 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1331                  [], [], [#include <sys/user.h>])
1332
1333 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1334 AC_MSG_CHECKING(for PTRACE_GETREGS)
1335 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1336 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1337                 [PTRACE_GETREGS;],
1338                 [gdb_cv_have_ptrace_getregs=yes],
1339                 [gdb_cv_have_ptrace_getregs=no])])
1340 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1341 if test $gdb_cv_have_ptrace_getregs = yes; then
1342   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1343   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1344 fi
1345
1346 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1347 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1348 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1349 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1350                 [PTRACE_GETFPXREGS;],
1351                 [gdb_cv_have_ptrace_getfpxregs=yes],
1352                 [gdb_cv_have_ptrace_getfpxregs=no])])
1353 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1354 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1355   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1356   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1357 fi
1358
1359 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1360 AC_MSG_CHECKING(for PT_GETDBREGS)
1361 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1362 [AC_TRY_COMPILE([#include <sys/types.h>
1363 #include <sys/ptrace.h>],
1364                 [PT_GETDBREGS;],
1365                 [gdb_cv_have_pt_getdbregs=yes],
1366                 [gdb_cv_have_pt_getdbregs=no])])
1367 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1368 if test $gdb_cv_have_pt_getdbregs = yes; then
1369   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1370   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1371 fi
1372
1373 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1374 AC_MSG_CHECKING(for PT_GETXMMREGS)
1375 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1376 [AC_TRY_COMPILE([#include <sys/types.h>
1377 #include <sys/ptrace.h>],
1378                 [PT_GETXMMREGS;],
1379                 [gdb_cv_have_pt_getxmmregs=yes],
1380                 [gdb_cv_have_pt_getxmmregs=no])])
1381 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1382 if test $gdb_cv_have_pt_getxmmregs = yes; then
1383   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1384   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1385 fi
1386
1387 # Detect which type of /proc is in use, such as for Solaris.
1388
1389 if test "${target}" = "${host}"; then
1390   case "${host}" in
1391   *-*-sysv4.2* | *-*-sysv5* )
1392       AC_DEFINE(NEW_PROC_API, 1,
1393       [Define if you want to use new multi-fd /proc interface
1394        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
1395       ;;
1396   *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1397       AC_DEFINE(NEW_PROC_API, 1,
1398       [Define if you want to use new multi-fd /proc interface
1399        (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
1400       ;;
1401   mips-sgi-irix5*)
1402       # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1403       AC_DEFINE([_KMEMUSER], 1,
1404       [Define to 1 so <sys/proc.h> gets a definition of anon_hdl.  Works
1405        around a <sys/proc.h> problem on IRIX 5.])
1406       ;;
1407   esac
1408 fi
1409
1410 if test "$ac_cv_header_sys_procfs_h" = yes; then
1411   BFD_HAVE_SYS_PROCFS_TYPE(pstatus_t)
1412   BFD_HAVE_SYS_PROCFS_TYPE(prrun_t)
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(prfpregset32_t)
1419   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1420   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1421   BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1422   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1423   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1424   BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1425
1426
1427   dnl Check for broken prfpregset_t type
1428
1429   dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1430   dnl prfpregset_t type (it's a typedef for the pointer to a struct
1431   dnl instead of the struct itself).  We detect this here, and work
1432   dnl around it in gdb_proc_service.h.
1433
1434   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1435     AC_MSG_CHECKING(whether prfpregset_t type is broken)
1436     AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1437       [AC_TRY_RUN([#include <sys/procfs.h>
1438        int main ()
1439        {
1440          if (sizeof (prfpregset_t) == sizeof (void *))
1441            return 1;
1442          return 0;
1443        }],
1444        gdb_cv_prfpregset_t_broken=no,
1445        gdb_cv_prfpregset_t_broken=yes,
1446        gdb_cv_prfpregset_t_broken=yes)])
1447     AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1448     if test $gdb_cv_prfpregset_t_broken = yes; then
1449       AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1450       [Define if the prfpregset_t type is broken.])
1451     fi
1452   fi
1453
1454   dnl Check for PIOCSET ioctl entry
1455
1456   AC_MSG_CHECKING(for PIOCSET ioctl entry in sys/procfs.h)
1457   AC_CACHE_VAL(gdb_cv_have_procfs_piocset,
1458   [AC_TRY_COMPILE([#include <unistd.h>
1459 #include <sys/types.h>
1460 #include <sys/procfs.h>
1461 ], [
1462     int dummy;;
1463     dummy = ioctl(0, PIOCSET, &dummy);
1464   ],
1465   gdb_cv_have_procfs_piocset=yes, gdb_cv_have_procfs_piocset=no)])
1466   AC_MSG_RESULT($gdb_cv_have_procfs_piocset)
1467   if test $gdb_cv_have_procfs_piocset = yes; then
1468     AC_DEFINE(HAVE_PROCFS_PIOCSET, 1,
1469     [Define if ioctl argument PIOCSET is available.])
1470   fi
1471 fi
1472
1473 # Check if the compiler supports the `long long' type.
1474
1475 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1476                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1477 [[extern long long foo;]],
1478 [[switch (foo & 2) { case 0: return 1; }]])],
1479                                   gdb_cv_c_long_long=yes,
1480                                   gdb_cv_c_long_long=no)])
1481 if test $gdb_cv_c_long_long != yes; then
1482   # libdecnumber requires long long.
1483   AC_MSG_ERROR([Compiler must support long long for GDB.])
1484 fi
1485
1486 # Check if the compiler and runtime support printing long longs.
1487
1488 AC_CACHE_CHECK([for long long support in printf],
1489                gdb_cv_printf_has_long_long,
1490                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1491 [[char buf[32];
1492   long long l = 0;
1493   l = (l << 16) + 0x0123;
1494   l = (l << 16) + 0x4567;
1495   l = (l << 16) + 0x89ab;
1496   l = (l << 16) + 0xcdef;
1497   sprintf (buf, "0x%016llx", l);
1498   return (strcmp ("0x0123456789abcdef", buf));]])],
1499                               gdb_cv_printf_has_long_long=yes,
1500                               gdb_cv_printf_has_long_long=no,
1501                               gdb_cv_printf_has_long_long=no)])
1502 if test $gdb_cv_printf_has_long_long = yes; then
1503   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1504             [Define to 1 if the "%ll" format works to print long longs.])
1505 fi
1506
1507 # Check if the compiler and runtime support printing decfloats.
1508
1509 AC_CACHE_CHECK([for decfloat support in printf],
1510                gdb_cv_printf_has_decfloat,
1511                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1512 [[char buf[64];
1513   _Decimal32 d32 = 1.2345df;
1514   _Decimal64 d64 = 1.2345dd;
1515   _Decimal128 d128 = 1.2345dl;
1516   sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1517   return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1518                               gdb_cv_printf_has_decfloat=yes,
1519                               gdb_cv_printf_has_decfloat=no,
1520                               gdb_cv_printf_has_decfloat=no)])
1521 if test $gdb_cv_printf_has_decfloat = yes; then
1522   AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1523             [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1524 fi
1525
1526 # Check if the compiler supports the `long double' type.  We can't use
1527 # AC_C_LONG_DOUBLE because that one does additional checks on the
1528 # constants defined in <float.h> that fail on some systems,
1529 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1530
1531 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1532                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1533                                   gdb_cv_c_long_double=yes,
1534                                   gdb_cv_c_long_double=no)])
1535 if test $gdb_cv_c_long_double = yes; then
1536   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1537            [Define to 1 if the compiler supports long double.])
1538 fi
1539
1540 # Check if the compiler and runtime support printing long doubles.
1541
1542 AC_CACHE_CHECK([for long double support in printf],
1543                gdb_cv_printf_has_long_double,
1544                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1545 [[char buf[16];
1546   long double f = 3.141592653;
1547   sprintf (buf, "%Lg", f);
1548   return (strncmp ("3.14159", buf, 7));]])],
1549                               gdb_cv_printf_has_long_double=yes,
1550                               gdb_cv_printf_has_long_double=no,
1551                               gdb_cv_printf_has_long_double=no)])
1552 if test $gdb_cv_printf_has_long_double = yes; then
1553   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1554             [Define to 1 if the "%Lg" format works to print long doubles.])
1555 fi
1556
1557 # Check if the compiler and runtime support scanning long doubles.
1558
1559 AC_CACHE_CHECK([for long double support in scanf],
1560                gdb_cv_scanf_has_long_double,
1561                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1562 [[#include <stdio.h>]],
1563 [[char *buf = "3.141592653";
1564   long double f = 0;
1565   sscanf (buf, "%Lg", &f);
1566   return !(f > 3.14159 && f < 3.14160);]])],
1567                               gdb_cv_scanf_has_long_double=yes,
1568                               gdb_cv_scanf_has_long_double=no,
1569                               gdb_cv_scanf_has_long_double=no)])
1570 if test $gdb_cv_scanf_has_long_double = yes; then
1571   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1572             [Define to 1 if the "%Lg" format works to scan long doubles.])
1573 fi
1574
1575 case ${host_os} in
1576 aix*)
1577   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1578     SAVE_LDFLAGS=$LDFLAGS
1579
1580     case $GCC in
1581     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1582     *) gdb_cv_bigtoc=-bbigtoc ;;
1583     esac
1584
1585     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1586     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1587     LDFLAGS="${SAVE_LDFLAGS}"
1588   ])
1589   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1590   ;;
1591 esac
1592
1593 AC_MSG_CHECKING(for the dynamic export flag)
1594 dynamic_list=false
1595 if test "${gdb_native}" = yes; then
1596    # The dynamically loaded libthread_db needs access to symbols in the gdb
1597    # executable.  Older GNU ld supports --export-dynamic but --dynamic-list
1598    # may not be supported there.
1599    old_LDFLAGS="$LDFLAGS"
1600    # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1601    RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1602    LDFLAGS="$LDFLAGS $RDYNAMIC"
1603    if test "${have_libpython}" = no; then
1604      AC_TRY_LINK([], [], [dynamic_list=true])
1605    else
1606      # Workaround http://bugs.python.org/issue4434 where static
1607      # libpythonX.Y.a would get its symbols required for
1608      # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1609      # Problem does not happen for the recommended libpythonX.Y.so linkage.
1610      old_CFLAGS="$CFLAGS"
1611      CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1612      old_LIBS="$LIBS"
1613      LIBS="$LIBS $PYTHON_LIBS"
1614      AC_RUN_IFELSE(
1615        AC_LANG_PROGRAM(
1616          [#include "]${have_libpython}[/Python.h"],
1617          [int err;
1618           Py_Initialize ();
1619           err = PyRun_SimpleString ("import itertools\n");
1620           Py_Finalize ();
1621           return err == 0 ? 0 : 1;]),
1622        [dynamic_list=true], [], [true])
1623      LIBS="$old_LIBS"
1624      CFLAGS="$old_CFLAGS"
1625    fi
1626    LDFLAGS="$old_LDFLAGS"
1627 fi
1628 if $dynamic_list; then
1629   found="-Wl,--dynamic-list"
1630   RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1631 else
1632   found="-rdynamic"
1633   RDYNAMIC="-rdynamic"
1634 fi
1635 AC_SUBST(RDYNAMIC)
1636 AC_MSG_RESULT($found)
1637
1638 dnl For certain native configurations, we need to check whether thread
1639 dnl support can be built in or not.
1640 dnl
1641 dnl Note that we only want this if we are both native (host == target),
1642 dnl and not doing a canadian cross build (build == host).
1643
1644 if test ${build} = ${host} -a ${host} = ${target} ; then
1645    case ${host_os} in
1646    solaris*)
1647       # See if thread_db library is around for Solaris thread debugging.
1648       # Note that we must explicitly test for version 1 of the library
1649       # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1650       # the same API.
1651       AC_MSG_CHECKING(for Solaris thread debugging library)
1652       if test -f /usr/lib/libthread_db.so.1 ; then
1653          AC_MSG_RESULT(yes)
1654          AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1655          [Define if using Solaris thread debugging.])
1656          CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1657          CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1658          AC_CHECK_LIB(dl, dlopen)
1659          CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1660          # Sun randomly tweaked the prototypes in <proc_service.h>
1661          # at one point.
1662          AC_MSG_CHECKING(if <proc_service.h> is old)
1663          AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1664             AC_TRY_COMPILE([
1665                 #include <proc_service.h>
1666                 ps_err_e ps_pdwrite
1667                     (struct ps_prochandle*, psaddr_t, const void*, size_t);
1668             ],, gdb_cv_proc_service_is_old=no,
1669                 gdb_cv_proc_service_is_old=yes)
1670          ])
1671          AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1672          if test $gdb_cv_proc_service_is_old = yes; then
1673             AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1674             [Define if <proc_service.h> on solaris uses int instead of
1675              size_t, and assorted other type changes.])
1676          fi
1677       else
1678          AC_MSG_RESULT(no)
1679       fi
1680       ;;
1681    aix*)
1682       AC_MSG_CHECKING(for AiX thread debugging library)
1683       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1684                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1685                                    [#ifndef PTHDB_VERSION_3
1686                                     #error
1687                                     #endif],
1688                                    gdb_cv_have_aix_thread_debug=yes,
1689                                    gdb_cv_have_aix_thread_debug=no)])
1690       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1691       if test $gdb_cv_have_aix_thread_debug = yes; then
1692          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1693          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1694          LIBS="$LIBS -lpthdebug"
1695
1696          # Older versions of AIX do not provide the declaration for
1697          # the getthrds function (it appears that it was introduced
1698          # with AIX 6.x).
1699          AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1700       fi
1701       ;;
1702    esac
1703    AC_SUBST(CONFIG_LDFLAGS)
1704 fi
1705
1706 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1707 dnl other error codes.
1708 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1709    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1710                   gdb_cv_thread_db_h_has_td_notalloc,
1711      AC_TRY_COMPILE(
1712        [#include <thread_db.h>],
1713        [int i = TD_NOTALLOC;],
1714        gdb_cv_thread_db_h_has_td_notalloc=yes,
1715        gdb_cv_thread_db_h_has_td_notalloc=no
1716      )
1717    )
1718    AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1719                   gdb_cv_thread_db_h_has_td_version,
1720      AC_TRY_COMPILE(
1721        [#include <thread_db.h>],
1722        [int i = TD_VERSION;],
1723        gdb_cv_thread_db_h_has_td_version=yes,
1724        gdb_cv_thread_db_h_has_td_version=no
1725      )
1726    )
1727    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1728                   gdb_cv_thread_db_h_has_td_notls,
1729      AC_TRY_COMPILE(
1730        [#include <thread_db.h>],
1731        [int i = TD_NOTLS;],
1732        gdb_cv_thread_db_h_has_td_notls=yes,
1733        gdb_cv_thread_db_h_has_td_notls=no
1734      )
1735    )
1736 fi
1737 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1738   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1739             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1740 fi
1741 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1742   AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1743             [Define if <thread_db.h> has the TD_VERSION error code.])
1744 fi
1745 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1746   AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1747             [Define if <thread_db.h> has the TD_NOTLS error code.])
1748 fi
1749
1750 dnl See if we have a sys/syscall header file that has __NR_tkill.
1751 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1752    AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1753                   gdb_cv_sys_syscall_h_has_tkill,
1754      AC_TRY_COMPILE(
1755        [#include <sys/syscall.h>],
1756        [int i = __NR_tkill;],
1757        gdb_cv_sys_syscall_h_has_tkill=yes,
1758        gdb_cv_sys_syscall_h_has_tkill=no
1759      )
1760    )
1761 fi
1762 dnl See if we can issue tkill syscall.
1763 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then
1764   AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1765 fi
1766
1767 dnl Check if we can disable the virtual address space randomization.
1768 dnl The functionality of setarch -R.
1769 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1770 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1771 #      if !HAVE_DECL_ADDR_NO_RANDOMIZE
1772 #       define ADDR_NO_RANDOMIZE 0x0040000
1773 #      endif
1774        /* Test the flag could be set and stays set.  */
1775        personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1776        if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1777            return 1])])
1778 AC_RUN_IFELSE([PERSONALITY_TEST],
1779               [have_personality=true],
1780               [have_personality=false],
1781               [AC_LINK_IFELSE([PERSONALITY_TEST],
1782                               [have_personality=true],
1783                               [have_personality=false])])
1784 if $have_personality
1785 then
1786     AC_DEFINE([HAVE_PERSONALITY], 1,
1787               [Define if you support the personality syscall.])
1788 fi
1789
1790 dnl Set the host's .gdbinit filename.
1791 case $host_os in
1792   go32* | *djgpp*)
1793     gdbinit=gdb.ini
1794     ;;
1795   *)
1796     gdbinit=.gdbinit
1797     ;;
1798 esac
1799 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1800
1801 dnl Handle optional features that can be enabled.
1802
1803 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1804 # except that the argument to --with-sysroot is optional.
1805 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1806 if test "x$with_sysroot" = xyes; then
1807   with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1808 fi
1809 AC_ARG_WITH(sysroot,
1810   AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1811                  [search for usr/lib et al within DIR]),
1812   [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1813 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1814               [search for usr/lib et al within DIR])
1815 AC_SUBST(TARGET_SYSTEM_ROOT)
1816 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1817
1818 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1819     [automatically load a system-wide gdbinit file],
1820     [])
1821
1822 AC_ARG_ENABLE(werror,
1823   AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
1824   [case "${enableval}" in
1825      yes | y) ERROR_ON_WARNING="yes" ;;
1826      no | n)  ERROR_ON_WARNING="no" ;;
1827      *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1828    esac])
1829
1830 # Enable -Werror by default when using gcc.  Turn it off for releases.
1831 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then
1832     ERROR_ON_WARNING=yes
1833 fi
1834
1835 WERROR_CFLAGS=""
1836 if test "${ERROR_ON_WARNING}" = yes ; then
1837     WERROR_CFLAGS="-Werror"
1838 fi
1839
1840 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
1841 -Wpointer-sign \
1842 -Wno-unused -Wunused-value -Wunused-function \
1843 -Wno-switch -Wno-char-subscripts -Wmissing-prototypes \
1844 -Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type \
1845 -Wold-style-declaration -Wold-style-definition"
1846
1847 # Enable -Wno-format by default when using gcc on mingw since many
1848 # GCC versions complain about %I64.
1849 case "${host}" in
1850   *-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;
1851   *) build_warnings="$build_warnings -Wformat-nonliteral" ;;
1852 esac
1853
1854 AC_ARG_ENABLE(build-warnings,
1855 AS_HELP_STRING([--enable-build-warnings], [enable build-time compiler warnings if gcc is used]),
1856 [case "${enableval}" in
1857   yes)  ;;
1858   no)   build_warnings="-w";;
1859   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1860         build_warnings="${build_warnings} ${t}";;
1861   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1862         build_warnings="${t} ${build_warnings}";;
1863   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1864 esac
1865 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1866   echo "Setting compiler warning flags = $build_warnings" 6>&1
1867 fi])dnl
1868 AC_ARG_ENABLE(gdb-build-warnings,
1869 AS_HELP_STRING([--enable-gdb-build-warnings], [enable GDB specific build-time compiler warnings if gcc is used]),
1870 [case "${enableval}" in
1871   yes)  ;;
1872   no)   build_warnings="-w";;
1873   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1874         build_warnings="${build_warnings} ${t}";;
1875   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
1876         build_warnings="${t} ${build_warnings}";;
1877   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1878 esac
1879 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1880   echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
1881 fi])dnl
1882 WARN_CFLAGS=""
1883 if test "x${build_warnings}" != x -a "x$GCC" = xyes
1884 then
1885     AC_MSG_CHECKING(compiler warning flags)
1886     # Separate out the -Werror flag as some files just cannot be
1887     # compiled with it enabled.
1888     for w in ${build_warnings}; do
1889         case $w in
1890         -Werr*) WERROR_CFLAGS=-Werror ;;
1891         *) # Check that GCC accepts it
1892             saved_CFLAGS="$CFLAGS"
1893             CFLAGS="$CFLAGS $w"
1894             AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
1895             CFLAGS="$saved_CFLAGS"
1896         esac
1897     done
1898     AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
1899 fi
1900 AC_SUBST(WARN_CFLAGS)
1901 AC_SUBST(WERROR_CFLAGS)
1902
1903 # In the Cygwin environment, we need some additional flags.
1904 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1905 [AC_EGREP_CPP(lose, [
1906 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1907 lose
1908 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1909
1910
1911 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1912 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1913 case ${host} in
1914   *go32* ) SER_HARDWIRE=ser-go32.o ;;
1915   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1916   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1917 esac
1918 AC_SUBST(SER_HARDWIRE)
1919
1920 # libreadline needs libuser32.a in a cygwin environment
1921 WIN32LIBS=
1922 if test x$gdb_cv_os_cygwin = xyes; then
1923     WIN32LIBS="-luser32"
1924     case "${target}" in
1925         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1926         ;;
1927     esac
1928 fi
1929
1930 # The ser-tcp.c module requires sockets.
1931 case ${host} in
1932   *mingw32*)
1933     AC_DEFINE(USE_WIN32API, 1,
1934               [Define if we should use the Windows API, instead of the
1935                POSIX API.  On Windows, we use the Windows API when
1936                building for MinGW, but the POSIX API when building
1937                for Cygwin.])
1938     WIN32LIBS="$WIN32LIBS -lws2_32"
1939     ;;
1940 esac
1941 AC_SUBST(WIN32LIBS)
1942
1943 # Add ELF support to GDB, but only if BFD includes ELF support.
1944 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1945                  [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1946 if test $gdb_cv_var_elf = yes; then
1947   CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o"
1948   AC_DEFINE(HAVE_ELF, 1,
1949             [Define if ELF support should be included.])
1950   # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1951   if test "$plugins" = "yes"; then
1952     AC_SEARCH_LIBS(dlopen, dl)
1953   fi
1954 fi
1955
1956 # Add macho support to GDB, but only if BFD includes it.
1957 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1958                  [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1959 if test $gdb_cv_var_macho = yes; then
1960   CONFIG_OBS="$CONFIG_OBS machoread.o"
1961 fi
1962
1963 # Add SOM support to GDB, but only if BFD includes it.
1964 GDB_AC_CHECK_BFD([for SOM support in BFD], gdb_cv_var_som,
1965                  [bfd_som_attach_aux_hdr (NULL, 0, NULL)], som.h)
1966 if test $gdb_cv_var_som = yes; then
1967   CONFIG_OBS="$CONFIG_OBS somread.o"
1968 fi
1969
1970 # Add any host-specific objects to GDB.
1971 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1972
1973 # If building on ELF, look for lzma support for embedded compressed debug info.
1974 if test $gdb_cv_var_elf = yes; then
1975   AC_ARG_WITH(lzma,
1976     AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1977     [], [with_lzma=auto])
1978   AC_MSG_CHECKING([whether to use lzma])
1979   AC_MSG_RESULT([$with_lzma])
1980
1981   if test "${with_lzma}" != no; then
1982     AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1983                           [lzma_index_iter iter;
1984                            lzma_index_iter_init (&iter, 0);
1985                            lzma_mf_is_supported (LZMA_MF_HC3);])
1986     if test "$HAVE_LIBLZMA" != yes; then
1987       if test "$with_lzma" = yes; then
1988         AC_MSG_ERROR([missing liblzma for --with-lzma])
1989       fi
1990     fi
1991   fi
1992 fi
1993
1994 LIBGUI="../libgui/src/libgui.a"
1995 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1996 AC_SUBST(LIBGUI)
1997 AC_SUBST(GUI_CFLAGS_X)
1998
1999 WIN32LDAPP=
2000 AC_SUBST(WIN32LIBS)
2001 AC_SUBST(WIN32LDAPP)
2002
2003 case "${host}" in
2004 *-*-cygwin* | *-*-mingw* )
2005     configdir="win"
2006     ;;
2007 *)
2008     configdir="unix"
2009     ;;
2010 esac
2011
2012 GDBTKLIBS=
2013 if test "${enable_gdbtk}" = "yes"; then
2014
2015     # Gdbtk must have an absolute path to srcdir in order to run
2016     # properly when not installed.
2017     here=`pwd`
2018     cd ${srcdir}
2019     GDBTK_SRC_DIR=`pwd`
2020     cd $here
2021
2022     SC_PATH_TCLCONFIG
2023
2024     # If $no_tk is nonempty, then we can't do Tk, and there is no
2025     # point to doing Tcl.
2026     SC_PATH_TKCONFIG
2027
2028     if test -z "${no_tcl}" -a -z "${no_tk}"; then
2029         SC_LOAD_TCLCONFIG
2030
2031         # Check for in-tree tcl
2032         here=`pwd`
2033         cd ${srcdir}/..
2034         topdir=`pwd`
2035         cd ${here}
2036
2037         intree="no"
2038         if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2039           intree="yes"
2040         fi
2041
2042         # Find Tcl private headers
2043         if test x"${intree}" = xno; then
2044           CY_AC_TCL_PRIVATE_HEADERS
2045           TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2046           TCL_LIBRARY="${TCL_LIB_SPEC}"
2047           TCL_DEPS=""
2048         else
2049           # If building tcl in the same src tree, private headers
2050           # are not needed, but we need to be sure to use the right
2051           # headers library
2052           TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2053           TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2054           TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2055         fi
2056         AC_SUBST(TCL_INCLUDE)
2057         AC_SUBST(TCL_LIBRARY)
2058         AC_SUBST(TCL_DEPS)
2059
2060         SC_LOAD_TKCONFIG
2061
2062         # Check for in-tree Tk
2063         intree="no"
2064         if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2065           intree="yes"
2066         fi
2067
2068         # Find Tk private headers
2069         if test x"${intree}" = xno; then
2070           CY_AC_TK_PRIVATE_HEADERS
2071           TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2072           TK_LIBRARY=${TK_LIB_SPEC}
2073           TK_DEPS=""
2074         else
2075           TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2076           TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2077           TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2078         fi
2079         AC_SUBST(TK_INCLUDE)
2080         AC_SUBST(TK_LIBRARY)
2081         AC_SUBST(TK_DEPS)
2082         AC_SUBST(TK_XINCLUDES)
2083
2084         ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2085
2086         # Include some libraries that Tcl and Tk want.
2087         TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2088         # Yes, the ordering seems wrong here.  But it isn't.
2089         # TK_LIBS is the list of libraries that need to be linked
2090         # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
2091         # were in LIBS then any link tests after this point would
2092         # try to include things like `$(LIBGUI)', which wouldn't work.
2093         GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2094
2095         CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2096         CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2097         CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2098         CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2099         CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2100         CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2101         CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2102
2103         if test x$gdb_cv_os_cygwin = xyes; then
2104           WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2105           WIN32LDAPP="-Wl,--subsystem,console"
2106           CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2107         fi
2108
2109         AC_CONFIG_SUBDIRS(gdbtk)
2110     fi
2111 fi
2112
2113 AC_SUBST(X_CFLAGS)
2114 AC_SUBST(X_LDFLAGS)
2115 AC_SUBST(X_LIBS)
2116 AC_SUBST(GDBTKLIBS)
2117 AC_SUBST(GDBTK_CFLAGS)
2118 AC_SUBST(GDBTK_SRC_DIR)
2119
2120 AC_PATH_X
2121
2122 # Unlike the sim directory, whether a simulator is linked is controlled by
2123 # presence of a gdb_sim definition in the target configure.tgt entry.
2124 # This code just checks for a few cases where we'd like to ignore those
2125 # definitions, even when they're present in the '.mt' file.  These cases
2126 # are when --disable-sim is specified, or if the simulator directory is
2127 # not part of the source tree.
2128 #
2129 AC_ARG_ENABLE(sim,
2130 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2131 [echo "enable_sim = $enable_sim";
2132  echo "enableval = ${enableval}";
2133  case "${enableval}" in
2134   yes) ignore_sim=false ;;
2135   no)  ignore_sim=true ;;
2136   *)   ignore_sim=false ;;
2137  esac],
2138 [ignore_sim=false])
2139
2140 if test ! -d "${srcdir}/../sim"; then
2141   ignore_sim=true
2142 fi
2143
2144 SIM=
2145 SIM_OBS=
2146 if test "${ignore_sim}" = "false"; then
2147   if test x"${gdb_sim}" != x ; then
2148     SIM="${gdb_sim}"
2149     SIM_OBS="remote-sim.o"
2150     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2151   fi
2152 fi
2153 AC_SUBST(SIM)
2154 AC_SUBST(SIM_OBS)
2155
2156 AC_SUBST(ENABLE_CFLAGS)
2157 AC_SUBST(PROFILE_CFLAGS)
2158
2159 AC_SUBST(CONFIG_OBS)
2160 AC_SUBST(CONFIG_DEPS)
2161 AC_SUBST(CONFIG_SRCS)
2162 AC_SUBST(CONFIG_ALL)
2163 AC_SUBST(CONFIG_CLEAN)
2164 AC_SUBST(CONFIG_INSTALL)
2165 AC_SUBST(CONFIG_UNINSTALL)
2166
2167 # List of host floatformats.
2168 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2169 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2170 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2171
2172 # target_subdir is used by the testsuite to find the target libraries.
2173 target_subdir=
2174 if test "${host}" != "${target}"; then
2175     target_subdir="${target_alias}/"
2176 fi
2177 AC_SUBST(target_subdir)
2178
2179 frags=
2180 if test "${gdb_native}" = "yes"; then
2181   host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2182   if test ! -f ${host_makefile_frag}; then
2183     AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2184   fi
2185   frags="$frags $host_makefile_frag"
2186 else
2187   host_makefile_frag=/dev/null
2188 fi
2189
2190 AC_SUBST_FILE(host_makefile_frag)
2191 AC_SUBST(frags)
2192
2193 changequote(,)dnl
2194 if test "${gdb_native}" = "yes"; then
2195 # We pick this up from the host configuration file (.mh) because we
2196 # do not have a native configuration Makefile fragment.
2197 nativefile=`sed -n '
2198 s/NAT_FILE[     ]*=[    ]*\([^  ]*\)/\1/p
2199 ' ${host_makefile_frag}`
2200 fi
2201 changequote([,])
2202
2203 if test x"${gdb_osabi}" != x ; then
2204     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2205                        [Define to the default OS ABI for this configuration.])
2206 fi
2207
2208 # Enable multi-ice-gdb-server.
2209 AC_ARG_ENABLE(multi-ice,
2210 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2211   [case $enableval in
2212     yes | no)
2213       ;;
2214     *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2215   esac])
2216 if test "x$enable_multi_ice" = xyes; then
2217    AC_CONFIG_SUBDIRS(multi-ice)
2218 fi
2219
2220 AC_ARG_ENABLE(gdbserver,
2221 AS_HELP_STRING([--enable-gdbserver],
2222                [automatically build gdbserver (yes/no/auto, default is auto)]),
2223 [case "${enableval}" in
2224   yes| no|auto) ;;
2225   *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2226 esac],[enable_gdbserver=auto])
2227
2228 # We only build gdbserver automatically in a native configuration, and
2229 # only if the user did not explicitly disable its build.
2230 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2231   AC_MSG_CHECKING(whether gdbserver is supported on this host)
2232   if test "x$build_gdbserver" = xyes; then
2233     AC_MSG_RESULT(yes)
2234     AC_CONFIG_SUBDIRS(gdbserver)
2235     gdbserver_build_enabled=yes
2236   else
2237     AC_MSG_RESULT(no)
2238   fi
2239 fi
2240
2241 # If the user explicitly request the gdbserver to be built, verify that
2242 # we were in fact able to enable it.
2243 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2244   AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2245 fi
2246
2247 # Check for babeltrace and babeltrace-ctf
2248 AC_ARG_WITH(babeltrace,
2249   AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2250   [], [with_babeltrace=auto])
2251 AC_MSG_CHECKING([whether to use babeltrace])
2252 AC_MSG_RESULT([$with_babeltrace])
2253
2254 if test "x$with_babeltrace" = "xno"; then
2255   AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2256 else
2257   # Append -Werror to CFLAGS so that configure can catch the warning
2258   # "assignment from incompatible pointer type", which is related to
2259   # the babeltrace change from 1.0.3 to 1.1.0.  Babeltrace 1.1.0 works
2260   # in GDB, while babeltrace 1.0.3 is broken.
2261   # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2262   # safe to save and restore CFLAGS here.
2263   saved_CFLAGS=$CFLAGS
2264   CFLAGS="$CFLAGS -Werror"
2265   AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2266                         [#include <babeltrace/babeltrace.h>
2267                          #include <babeltrace/ctf/events.h>
2268                          #include <babeltrace/ctf/iterator.h>],
2269                         [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2270                         struct bt_ctf_event *event = NULL;
2271                         const struct bt_definition *scope;
2272
2273                         scope = bt_ctf_get_top_level_scope (event,
2274                                                            BT_STREAM_EVENT_HEADER);
2275                         bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2276                         ])
2277   CFLAGS=$saved_CFLAGS
2278
2279   if test "$HAVE_LIBBABELTRACE" != yes; then
2280      if test "$with_babeltrace" = yes; then
2281        AC_MSG_ERROR([babeltrace is missing or unusable])
2282      else
2283        AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2284      fi
2285   fi
2286 fi
2287
2288 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2289 # to an empty version.
2290
2291 files=
2292 links=
2293
2294 rm -f nm.h
2295 if test "${nativefile}" != ""; then
2296     case "${nativefile}" in
2297       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2298       * ) GDB_NM_FILE="${nativefile}"
2299     esac
2300     files="${files} ${GDB_NM_FILE}"
2301     links="${links} nm.h"
2302     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2303 fi
2304 AC_SUBST(GDB_NM_FILE)
2305
2306 AC_LINK_FILES($files, $links)
2307
2308 dnl Check for exe extension set on certain hosts (e.g. Win32)
2309 AC_EXEEXT
2310
2311 dnl  Detect the character set used by this host.
2312 dnl  At the moment, we just assume it's UTF-8.
2313 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2314           [Define to be a string naming the default host character set.])
2315
2316 # Undo the $ec_script escaping suitable for Makefile.
2317 transform=`echo "$program_transform_name" | sed -e 's/[\\$][\\$]/\\$/g'`
2318 GDB_TRANSFORM_NAME=`echo gdb | sed -e "$transform"`
2319 if test "x$GDB_TRANSFORM_NAME" = x; then
2320   GDB_TRANSFORM_NAME=gdb
2321 fi
2322 AC_SUBST(GDB_TRANSFORM_NAME)
2323 GCORE_TRANSFORM_NAME=`echo gcore | sed -e "$transform"`
2324 if test "x$GCORE_TRANSFORM_NAME" = x; then
2325   GCORE_TRANSFORM_NAME=gcore
2326 fi
2327 AC_SUBST(GCORE_TRANSFORM_NAME)
2328 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2329
2330 AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile,
2331 [
2332 case x$CONFIG_HEADERS in
2333 xconfig.h:config.in)
2334 echo > stamp-h ;;
2335 esac
2336 ])
2337
2338 exit 0