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 . $srcdir/../bfd/development.sh
  28
  29 AC_PROG_CC
  30 AC_USE_SYSTEM_EXTENSIONS
  31 ACX_LARGEFILE
  32 AM_PROG_CC_STDC
  33 AM_PROG_INSTALL_STRIP
  34
  35 AC_CONFIG_AUX_DIR(..)
  36 AC_CANONICAL_SYSTEM
  37 AC_ARG_PROGRAM
  38
  39 # Dependency checking.
  40 ZW_CREATE_DEPDIR
  41 ZW_PROG_COMPILER_DEPENDENCIES([CC])
  42
  43 # Check for the 'make' the user wants to use.
  44 AC_CHECK_PROGS(MAKE, make)
  45 MAKE_IS_GNU=
  46 case "`$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 libguile.  #
1059 # -------------------- #
1060
1061 dnl Utility to simplify finding libguile.
1062 dnl $1 = pkg-config-program
1063 dnl $2 = space-separate list of guile versions to try
1064 dnl $3 = yes|no, indicating whether to flag errors or ignore them
1065 dnl $4 = the shell variable to assign the result to
1066 dnl      If libguile is found we store "yes" here.
1067
1068 AC_DEFUN([AC_TRY_LIBGUILE],
1069 [
1070   pkg_config=$1
1071   guile_version_list=$2
1072   flag_errors=$3
1073   define([have_libguile_var],$4)
1074   found_usable_guile=checking
1075   AC_MSG_CHECKING([for usable guile from ${pkg_config}])
1076   for guile_version in ${guile_version_list}; do
1077     ${pkg_config} --exists ${guile_version} 2>/dev/null
1078     if test $? != 0; then
1079       continue
1080     fi
1081     dnl pkg-config says the package exists, so if we get an error now,
1082     dnl that's bad.
1083     new_CPPFLAGS=`${pkg_config} --cflags ${guile_version}`
1084     if test $? != 0; then
1085       AC_MSG_ERROR([failure running pkg-config --cflags ${guile_version}])
1086     fi
1087     new_LIBS=`${pkg_config} --libs ${guile_version}`
1088     if test $? != 0; then
1089       AC_MSG_ERROR([failure running pkg-config --libs ${guile_version}])
1090     fi
1091     dnl If we get this far, great.
1092     found_usable_guile=${guile_version}
1093     break
1094   done
1095   if test "${found_usable_guile}" = "checking"; then
1096     if test "${flag_errors}" = "yes"; then
1097       AC_MSG_ERROR([unable to find usable guile version from "${guile_version_list}"])
1098     else
1099       found_usable_guile=no
1100     fi
1101   fi
1102   dnl One final sanity check.
1103   dnl The user could have said --with-guile=python-2.7.
1104   if test "${found_usable_guile}" != no; then
1105     save_CPPFLAGS=$CPPFLAGS
1106     save_LIBS=$LIBS
1107     CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
1108     LIBS="$LIBS $new_LIBS"
1109     AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "libguile.h"]],
1110                                    [[scm_init_guile ();]]),
1111                    [have_libguile_var=yes
1112                     GUILE_CPPFLAGS=$new_CPPFLAGS
1113                     GUILE_LIBS=$new_LIBS],
1114                    [found_usable_guile=no])
1115     CPPFLAGS=$save_CPPFLAGS
1116     LIBS=$save_LIBS
1117     if test "${found_usable_guile}" = no; then
1118       if test "${flag_errors}" = yes; then
1119         AC_MSG_FAILURE([linking guile version ${guile_version} test program failed])
1120       fi
1121     fi
1122   fi
1123   AC_MSG_RESULT([${found_usable_guile}])
1124 ])
1125
1126 dnl There are several different values for --with-guile:
1127 dnl
1128 dnl no -   Don't include guile support.
1129 dnl yes -  Include guile support, error if it's missing.
1130 dnl        The pkg-config program must be in $PATH.
1131 dnl auto - Same as "yes", but if guile is missing from the system,
1132 dnl        fall back to "no".
1133 dnl guile-version [guile-version-choice-2 ...] -
1134 dnl        A space-separated list of guile package versions to try.
1135 dnl        These are passed to pkg-config as-is.
1136 dnl        E.g., guile-2.0 or guile-2.2-uninstalled
1137 dnl        This requires making sure PKG_CONFIG_PATH is set appropriately.
1138 dnl /path/to/pkg-config -
1139 dnl        Use this pkg-config program.
1140 dnl        NOTE: This needn't be the "real" pkg-config program.
1141 dnl        It could be a shell script.  It is invoked as:
1142 dnl        pkg-config --exists $version
1143 dnl        pkg-config --cflags $version
1144 dnl        pkg-config --libs $version
1145 dnl        $version will be the default guile version (currently guile-2.0),
1146 dnl        but the program is free to ignore this.
1147
1148 AC_ARG_WITH(guile,
1149   AS_HELP_STRING([--with-guile@<:@=GUILE@:>@], [include guile support (auto/yes/no/<guile-version>/<pkg-config-program>)]),
1150   [], [with_guile=auto])
1151 AC_MSG_CHECKING([whether to use guile])
1152 AC_MSG_RESULT([$with_guile])
1153
1154 dnl We check guile with pkg-config.
1155 AC_PATH_PROG(pkg_config_prog_path, pkg-config, missing)
1156
1157 try_guile_versions="guile-2.2 guile-2.0"
1158 have_libguile=no
1159 case "${with_guile}" in
1160 no)
1161   AC_MSG_WARN([guile support disabled; some features will be unavailable.])
1162   ;;
1163 auto)
1164   if test "${pkg_config_prog_path}" = "missing"; then
1165     AC_MSG_WARN([pkg-config not found, guile support disabled])
1166   else
1167     AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, no, have_libguile)
1168   fi
1169   ;;
1170 yes)
1171   if test "${pkg_config_prog_path}" = "missing"; then
1172     AC_MSG_ERROR([pkg-config not found])
1173   fi
1174   AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${try_guile_versions}, yes, have_libguile)
1175   ;;
1176 [[\\/]]* | ?:[[\\/]]*)
1177   if test -x "${with_guile}"; then
1178     AC_TRY_LIBGUILE(${with_guile}, ${try_guile_versions}, yes, have_libguile)
1179   else
1180     AC_MSG_ERROR([Guile config program not executable: ${with_guile}])
1181   fi
1182   ;;
1183 "" | */*)
1184   # Disallow --with=guile="" and --with-guile=foo/bar.
1185   AC_MSG_ERROR([invalid value for --with-guile])
1186   ;;
1187 *)
1188   # A space separate list of guile versions to try, in order.
1189   if test "${pkg_config_prog_path}" = "missing"; then
1190     AC_MSG_ERROR([pkg-config not found])
1191   fi
1192   AC_TRY_LIBGUILE(${pkg_config_prog_path}, ${with_guile}, yes, have_libguile)
1193   ;;
1194 esac
1195
1196 if test "${have_libguile}" != no; then
1197   AC_DEFINE(HAVE_GUILE, 1, [Define if Guile interpreter is being linked in.])
1198   CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_GUILE_OBS)"
1199   CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_GUILE_DEPS)"
1200   CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_GUILE_SRCS)"
1201   CONFIG_INSTALL="$CONFIG_INSTALL install-guile"
1202   ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_GUILE_CFLAGS)"
1203
1204   dnl The 'scm_new_smob' function appeared in Guile 2.0.6.
1205   save_LIBS="$LIBS"
1206   save_CPPFLAGS="$CPPFLAGS"
1207   LIBS="$GUILE_LIBS"
1208   CPPFLAGS="$GUILE_CPPFLAGS"
1209   AC_CHECK_FUNCS([scm_new_smob])
1210   LIBS="$save_LIBS"
1211   CPPFLAGS="$save_CPPFLAGS"
1212 else
1213   # Even if Guile support is not compiled in, we need to have these files
1214   # included.
1215   CONFIG_OBS="$CONFIG_OBS guile.o"
1216   CONFIG_SRCS="$CONFIG_SRCS guile/guile.c"
1217 fi
1218 AC_SUBST(GUILE_CPPFLAGS)
1219 AC_SUBST(GUILE_LIBS)
1220
1221 # --------------------- #
1222 # Check for libmcheck.  #
1223 # --------------------- #
1224
1225 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1226 # but turn it off if Python is enabled with threads, since -lmcheck is
1227 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1228 # and for releases.
1229 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1230    && $development; then
1231   libmcheck_default=yes
1232 else
1233   libmcheck_default=no
1234 fi
1235 GDB_AC_LIBMCHECK(${libmcheck_default})
1236
1237 if test "$ENABLE_LIBMCHECK" = "yes" \
1238         -a "${have_libpython}" != "no" \
1239         -a "${python_has_threads}" = "yes" ; then
1240   AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1241 fi
1242
1243 # ------------------------- #
1244 # Checks for header files.  #
1245 # ------------------------- #
1246
1247 AC_HEADER_STDC
1248 # elf_hp.h is for HP/UX 64-bit shared library support.
1249 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
1250                   thread_db.h \
1251                   sys/fault.h \
1252                   sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1253                   sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1254                   sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1255                   termios.h termio.h \
1256                   sgtty.h elf_hp.h \
1257                   dlfcn.h])
1258 AC_CHECK_HEADERS(sys/proc.h, [], [],
1259 [#if HAVE_SYS_PARAM_H
1260 # include <sys/param.h>
1261 #endif
1262 ])
1263 AC_CHECK_HEADERS(sys/user.h, [], [],
1264 [#if HAVE_SYS_PARAM_H
1265 # include <sys/param.h>
1266 #endif
1267 ])
1268
1269 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
1270 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
1271 # think that we don't have <curses.h> if we're using GCC.
1272 case $host_os in
1273   solaris2.[[789]])
1274     if test "$GCC" = yes; then
1275       AC_DEFINE(_MSE_INT_H, 1,
1276         [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
1277    Solaris 2.[789] when using GCC. ])
1278     fi ;;
1279 esac
1280 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
1281 AC_CHECK_HEADERS(term.h, [], [],
1282 [#if HAVE_CURSES_H
1283 # include <curses.h>
1284 #endif
1285 ])
1286
1287 # ------------------------- #
1288 # Checks for declarations.  #
1289 # ------------------------- #
1290
1291 AC_CHECK_DECLS([free, malloc, realloc, snprintf])
1292 AM_LC_MESSAGES
1293
1294 # ----------------------- #
1295 # Checks for structures.  #
1296 # ----------------------- #
1297
1298 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1299
1300 # ------------------ #
1301 # Checks for types.  #
1302 # ------------------ #
1303
1304 AC_TYPE_SIGNAL
1305 AC_CHECK_TYPES(socklen_t, [], [],
1306 [#include <sys/types.h>
1307 #include <sys/socket.h>
1308 ])
1309
1310 # ------------------------------------- #
1311 # Checks for compiler characteristics.  #
1312 # ------------------------------------- #
1313
1314 AC_C_CONST
1315 AC_C_INLINE
1316 AC_C_BIGENDIAN
1317
1318 # ------------------------------ #
1319 # Checks for library functions.  #
1320 # ------------------------------ #
1321
1322 AC_FUNC_ALLOCA
1323 AC_FUNC_MMAP
1324 AC_FUNC_VFORK
1325 AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid getgid \
1326                 pipe poll pread pread64 pwrite readlink resize_term \
1327                 sbrk setpgid setpgrp setsid \
1328                 sigaction sigprocmask sigsetmask socketpair \
1329                 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1330                 setrlimit getrlimit posix_madvise waitpid lstat \
1331                 ptrace64 sigaltstack])
1332 AM_LANGINFO_CODESET
1333 GDB_AC_COMMON
1334
1335 # Check the return and argument types of ptrace.  No canned test for
1336 # this, so roll our own.
1337 gdb_ptrace_headers='
1338 #include <sys/types.h>
1339 #if HAVE_SYS_PTRACE_H
1340 # include <sys/ptrace.h>
1341 #endif
1342 #if HAVE_UNISTD_H
1343 # include <unistd.h>
1344 #endif
1345 '
1346 # There is no point in checking if we don't have a prototype.
1347 AC_CHECK_DECLS(ptrace, [], [
1348   : ${gdb_cv_func_ptrace_ret='int'}
1349   : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1350 ], $gdb_ptrace_headers)
1351 # Check return type.  Varargs (used on GNU/Linux) conflict with the
1352 # empty argument list, so check for that explicitly.
1353 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
1354   AC_TRY_COMPILE($gdb_ptrace_headers,
1355     [extern long ptrace (enum __ptrace_request, ...);],
1356     gdb_cv_func_ptrace_ret='long',
1357     AC_TRY_COMPILE($gdb_ptrace_headers,
1358       [extern int ptrace ();],
1359       gdb_cv_func_ptrace_ret='int',
1360       gdb_cv_func_ptrace_ret='long')))
1361 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
1362   [Define as the return type of ptrace.])
1363 # Check argument types.
1364 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
1365   AC_TRY_COMPILE($gdb_ptrace_headers,
1366     [extern long ptrace (enum __ptrace_request, ...);],
1367     [gdb_cv_func_ptrace_args='int,int,long,long'],[
1368 for gdb_arg1 in 'int' 'long'; do
1369  for gdb_arg2 in 'pid_t' 'int' 'long'; do
1370   for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
1371    for gdb_arg4 in 'int' 'long' 'void *'; do
1372      AC_TRY_COMPILE($gdb_ptrace_headers, [
1373 extern $gdb_cv_func_ptrace_ret
1374   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
1375 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
1376     break 4;])
1377     for gdb_arg5 in 'int *' 'int' 'long'; do
1378      AC_TRY_COMPILE($gdb_ptrace_headers, [
1379 extern $gdb_cv_func_ptrace_ret
1380   ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
1381 ], [
1382 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
1383     break 5;])
1384     done
1385    done
1386   done
1387  done
1388 done
1389 # Provide a safe default value.
1390 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1391 ])])
1392 ac_save_IFS=$IFS; IFS=','
1393 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
1394 IFS=$ac_save_IFS
1395 shift
1396 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
1397   [Define to the type of arg 3 for ptrace.])
1398 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG4, $[4],
1399   [Define to the type of arg 4 for ptrace.])
1400 if test -n "$[5]"; then
1401   AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
1402     [Define to the type of arg 5 for ptrace.])
1403 fi
1404
1405 dnl AC_FUNC_SETPGRP does not work when cross compiling
1406 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1407 if test "$cross_compiling" = no; then
1408   AC_FUNC_SETPGRP
1409 else
1410   AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1411     [AC_TRY_COMPILE([
1412 #include <unistd.h>
1413 ], [
1414   if (setpgrp(1,1) == -1)
1415     exit (0);
1416   else
1417     exit (1);
1418 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1419 if test $ac_cv_func_setpgrp_void = yes; then
1420   AC_DEFINE(SETPGRP_VOID, 1)
1421 fi
1422 fi
1423
1424 # Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do
1425 # since sigsetjmp might only be defined as a macro.
1426 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
1427 [AC_TRY_COMPILE([
1428 #include <setjmp.h>
1429 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
1430 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
1431 if test $gdb_cv_func_sigsetjmp = yes; then
1432   AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
1433 fi
1434
1435 # Assume we'll default to using the included libiberty regex.
1436 gdb_use_included_regex=yes
1437
1438 # However, if the system regex is GNU regex, then default to *not*
1439 # using the included regex.
1440 AC_CACHE_CHECK(
1441   [for GNU regex],
1442   [gdb_cv_have_gnu_regex],
1443   [AC_TRY_COMPILE(
1444     [#include <gnu-versions.h>],
1445     [#define REGEX_INTERFACE_VERSION 1
1446 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1447 # error "Version mismatch"
1448 #endif],
1449     gdb_cv_have_gnu_regex=yes,
1450     gdb_cv_have_gnu_regex=no)])
1451 if test $gdb_cv_have_gnu_regex = yes; then
1452   gdb_use_included_regex=no
1453 fi
1454
1455 AC_ARG_WITH(included-regex,
1456   AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1457   gdb_with_regex=$withval,
1458   gdb_with_regex=$gdb_use_included_regex)
1459 if test "$gdb_with_regex" = yes; then
1460   AC_DEFINE(USE_INCLUDED_REGEX, 1,
1461     [Define to 1 if the regex included in libiberty should be used.])
1462 fi
1463
1464 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1465 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1466 [#include <sys/param.h>
1467 #include <sys/proc.h>
1468 ])
1469
1470 # See if <sys/lwp.h> defines `struct lwp`.
1471 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1472 [AC_TRY_COMPILE([#include <sys/param.h>
1473 #include <sys/lwp.h>], [struct lwp l;],
1474 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1475 if test $gdb_cv_struct_lwp = yes; then
1476   AC_DEFINE(HAVE_STRUCT_LWP, 1,
1477             [Define to 1 if your system has struct lwp.])
1478 fi
1479
1480 # See if <machine/reg.h> degines `struct reg'.
1481 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1482 [AC_TRY_COMPILE([#include <sys/types.h>
1483 #include <machine/reg.h>], [struct reg r;],
1484 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1485 if test $gdb_cv_struct_reg = yes; then
1486   AC_DEFINE(HAVE_STRUCT_REG, 1,
1487             [Define to 1 if your system has struct reg in <machine/reg.h>.])
1488 fi
1489
1490 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1491 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1492 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1493                  [#include <machine/reg.h>])
1494
1495 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1496 # Older amd64 Linux's don't have the fs_base and gs_base members of
1497 # `struct user_regs_struct'.
1498 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1499                  [], [], [#include <sys/user.h>])
1500
1501 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1502 AC_MSG_CHECKING(for PTRACE_GETREGS)
1503 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1504 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1505                 [PTRACE_GETREGS;],
1506                 [gdb_cv_have_ptrace_getregs=yes],
1507                 [gdb_cv_have_ptrace_getregs=no])])
1508 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1509 if test $gdb_cv_have_ptrace_getregs = yes; then
1510   AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1511   [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1512 fi
1513
1514 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1515 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1516 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1517 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1518                 [PTRACE_GETFPXREGS;],
1519                 [gdb_cv_have_ptrace_getfpxregs=yes],
1520                 [gdb_cv_have_ptrace_getfpxregs=no])])
1521 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1522 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1523   AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1524   [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1525 fi
1526
1527 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1528 AC_MSG_CHECKING(for PT_GETDBREGS)
1529 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1530 [AC_TRY_COMPILE([#include <sys/types.h>
1531 #include <sys/ptrace.h>],
1532                 [PT_GETDBREGS;],
1533                 [gdb_cv_have_pt_getdbregs=yes],
1534                 [gdb_cv_have_pt_getdbregs=no])])
1535 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1536 if test $gdb_cv_have_pt_getdbregs = yes; then
1537   AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1538   [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1539 fi
1540
1541 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1542 AC_MSG_CHECKING(for PT_GETXMMREGS)
1543 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1544 [AC_TRY_COMPILE([#include <sys/types.h>
1545 #include <sys/ptrace.h>],
1546                 [PT_GETXMMREGS;],
1547                 [gdb_cv_have_pt_getxmmregs=yes],
1548                 [gdb_cv_have_pt_getxmmregs=no])])
1549 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1550 if test $gdb_cv_have_pt_getxmmregs = yes; then
1551   AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1552   [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1553 fi
1554
1555 # Detect which type of /proc is in use, such as for Solaris.
1556
1557 if test "${target}" = "${host}"; then
1558   case "${host}" in
1559   *-*-sysv4.2* | *-*-sysv5* )
1560       AC_DEFINE(NEW_PROC_API, 1,
1561       [Define if you want to use new multi-fd /proc interface.])
1562       ;;
1563   *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1564       AC_DEFINE(NEW_PROC_API, 1,
1565       [Define if you want to use new multi-fd /proc interface.])
1566       ;;
1567   mips-sgi-irix5*)
1568       # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1569       AC_DEFINE([_KMEMUSER], 1,
1570       [Define to 1 so <sys/proc.h> gets a definition of anon_hdl.  Works
1571        around a <sys/proc.h> problem on IRIX 5.])
1572       ;;
1573   esac
1574 fi
1575
1576 if test "$ac_cv_header_sys_procfs_h" = yes; then
1577   BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1578   BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1579   BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1580   BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1581   BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1582   BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1583   BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1584   BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1585   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1586   BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1587   BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1588
1589
1590   dnl Check for broken prfpregset_t type
1591
1592   dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1593   dnl prfpregset_t type (it's a typedef for the pointer to a struct
1594   dnl instead of the struct itself).  We detect this here, and work
1595   dnl around it in gdb_proc_service.h.
1596
1597   if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1598     AC_MSG_CHECKING(whether prfpregset_t type is broken)
1599     AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1600       [AC_TRY_RUN([#include <sys/procfs.h>
1601        int main ()
1602        {
1603          if (sizeof (prfpregset_t) == sizeof (void *))
1604            return 1;
1605          return 0;
1606        }],
1607        gdb_cv_prfpregset_t_broken=no,
1608        gdb_cv_prfpregset_t_broken=yes,
1609        gdb_cv_prfpregset_t_broken=yes)])
1610     AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1611     if test $gdb_cv_prfpregset_t_broken = yes; then
1612       AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1613       [Define if the prfpregset_t type is broken.])
1614     fi
1615   fi
1616 fi
1617
1618 # Check if the compiler supports the `long long' type.
1619
1620 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1621                [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1622 [[extern long long foo;]],
1623 [[switch (foo & 2) { case 0: return 1; }]])],
1624                                   gdb_cv_c_long_long=yes,
1625                                   gdb_cv_c_long_long=no)])
1626 if test $gdb_cv_c_long_long != yes; then
1627   # libdecnumber requires long long.
1628   AC_MSG_ERROR([Compiler must support long long for GDB.])
1629 fi
1630
1631 # Check if the compiler and runtime support printing long longs.
1632
1633 AC_CACHE_CHECK([for long long support in printf],
1634                gdb_cv_printf_has_long_long,
1635                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1636 [[char buf[32];
1637   long long l = 0;
1638   l = (l << 16) + 0x0123;
1639   l = (l << 16) + 0x4567;
1640   l = (l << 16) + 0x89ab;
1641   l = (l << 16) + 0xcdef;
1642   sprintf (buf, "0x%016llx", l);
1643   return (strcmp ("0x0123456789abcdef", buf));]])],
1644                               gdb_cv_printf_has_long_long=yes,
1645                               gdb_cv_printf_has_long_long=no,
1646                               gdb_cv_printf_has_long_long=no)])
1647 if test $gdb_cv_printf_has_long_long = yes; then
1648   AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1649             [Define to 1 if the "%ll" format works to print long longs.])
1650 fi
1651
1652 # Check if the compiler and runtime support printing decfloats.
1653
1654 AC_CACHE_CHECK([for decfloat support in printf],
1655                gdb_cv_printf_has_decfloat,
1656                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1657 [[char buf[64];
1658   _Decimal32 d32 = 1.2345df;
1659   _Decimal64 d64 = 1.2345dd;
1660   _Decimal128 d128 = 1.2345dl;
1661   sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1662   return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1663                               gdb_cv_printf_has_decfloat=yes,
1664                               gdb_cv_printf_has_decfloat=no,
1665                               gdb_cv_printf_has_decfloat=no)])
1666 if test $gdb_cv_printf_has_decfloat = yes; then
1667   AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1668             [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1669 fi
1670
1671 # Check if the compiler supports the `long double' type.  We can't use
1672 # AC_C_LONG_DOUBLE because that one does additional checks on the
1673 # constants defined in <float.h> that fail on some systems,
1674 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1675
1676 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1677                [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1678                                   gdb_cv_c_long_double=yes,
1679                                   gdb_cv_c_long_double=no)])
1680 if test $gdb_cv_c_long_double = yes; then
1681   AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1682            [Define to 1 if the compiler supports long double.])
1683 fi
1684
1685 # Check if the compiler and runtime support printing long doubles.
1686
1687 AC_CACHE_CHECK([for long double support in printf],
1688                gdb_cv_printf_has_long_double,
1689                [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1690 [[char buf[16];
1691   long double f = 3.141592653;
1692   sprintf (buf, "%Lg", f);
1693   return (strncmp ("3.14159", buf, 7));]])],
1694                               gdb_cv_printf_has_long_double=yes,
1695                               gdb_cv_printf_has_long_double=no,
1696                               gdb_cv_printf_has_long_double=no)])
1697 if test $gdb_cv_printf_has_long_double = yes; then
1698   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1699             [Define to 1 if the "%Lg" format works to print long doubles.])
1700 fi
1701
1702 # Check if the compiler and runtime support scanning long doubles.
1703
1704 AC_CACHE_CHECK([for long double support in scanf],
1705                gdb_cv_scanf_has_long_double,
1706                [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1707 [[#include <stdio.h>]],
1708 [[char *buf = "3.141592653";
1709   long double f = 0;
1710   sscanf (buf, "%Lg", &f);
1711   return !(f > 3.14159 && f < 3.14160);]])],
1712                               gdb_cv_scanf_has_long_double=yes,
1713                               gdb_cv_scanf_has_long_double=no,
1714                               gdb_cv_scanf_has_long_double=no)])
1715 if test $gdb_cv_scanf_has_long_double = yes; then
1716   AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1717             [Define to 1 if the "%Lg" format works to scan long doubles.])
1718 fi
1719
1720 case ${host_os} in
1721 aix*)
1722   AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1723     SAVE_LDFLAGS=$LDFLAGS
1724
1725     case $GCC in
1726     yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1727     *) gdb_cv_bigtoc=-bbigtoc ;;
1728     esac
1729
1730     LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1731     AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1732     LDFLAGS="${SAVE_LDFLAGS}"
1733   ])
1734   CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1735   ;;
1736 esac
1737
1738 AC_MSG_CHECKING(for the dynamic export flag)
1739 dynamic_list=false
1740 if test "${gdb_native}" = yes; then
1741    # The dynamically loaded libthread_db needs access to symbols in the gdb
1742    # executable.  Older GNU ld supports --export-dynamic but --dynamic-list
1743    # may not be supported there.
1744    old_LDFLAGS="$LDFLAGS"
1745    # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1746    RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1747    LDFLAGS="$LDFLAGS $RDYNAMIC"
1748    if test "${have_libpython}" = no; then
1749      AC_TRY_LINK([], [], [dynamic_list=true])
1750    else
1751      # Workaround http://bugs.python.org/issue4434 where static
1752      # libpythonX.Y.a would get its symbols required for
1753      # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1754      # Problem does not happen for the recommended libpythonX.Y.so linkage.
1755      old_CFLAGS="$CFLAGS"
1756      CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1757      old_LIBS="$LIBS"
1758      LIBS="$LIBS $PYTHON_LIBS"
1759      AC_RUN_IFELSE(
1760        AC_LANG_PROGRAM(
1761          [#include "]${have_libpython}[/Python.h"],
1762          [int err;
1763           Py_Initialize ();
1764           err = PyRun_SimpleString ("import itertools\n");
1765           Py_Finalize ();
1766           return err == 0 ? 0 : 1;]),
1767        [dynamic_list=true], [], [true])
1768      LIBS="$old_LIBS"
1769      CFLAGS="$old_CFLAGS"
1770    fi
1771    LDFLAGS="$old_LDFLAGS"
1772 fi
1773 if $dynamic_list; then
1774   found="-Wl,--dynamic-list"
1775   RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1776 else
1777   found="-rdynamic"
1778   RDYNAMIC="-rdynamic"
1779 fi
1780 AC_SUBST(RDYNAMIC)
1781 AC_MSG_RESULT($found)
1782
1783 dnl For certain native configurations, we need to check whether thread
1784 dnl support can be built in or not.
1785 dnl
1786 dnl Note that we only want this if we are both native (host == target),
1787 dnl and not doing a canadian cross build (build == host).
1788
1789 if test ${build} = ${host} -a ${host} = ${target} ; then
1790    case ${host_os} in
1791    solaris*)
1792       # See if thread_db library is around for Solaris thread debugging.
1793       # Note that we must explicitly test for version 1 of the library
1794       # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1795       # the same API.
1796       AC_MSG_CHECKING(for Solaris thread debugging library)
1797       if test -f /usr/lib/libthread_db.so.1 ; then
1798          AC_MSG_RESULT(yes)
1799          AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1800          [Define if using Solaris thread debugging.])
1801          CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1802          CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1803          AC_CHECK_LIB(dl, dlopen)
1804          CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1805          # Sun randomly tweaked the prototypes in <proc_service.h>
1806          # at one point.
1807          AC_MSG_CHECKING(if <proc_service.h> is old)
1808          AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1809             AC_TRY_COMPILE([
1810                 #include <proc_service.h>
1811                 ps_err_e ps_pdwrite
1812                     (struct ps_prochandle*, psaddr_t, const void*, size_t);
1813             ],, gdb_cv_proc_service_is_old=no,
1814                 gdb_cv_proc_service_is_old=yes)
1815          ])
1816          AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1817          if test $gdb_cv_proc_service_is_old = yes; then
1818             AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1819             [Define if <proc_service.h> on solaris uses int instead of
1820              size_t, and assorted other type changes.])
1821          fi
1822       else
1823          AC_MSG_RESULT(no)
1824       fi
1825       ;;
1826    aix*)
1827       AC_MSG_CHECKING(for AiX thread debugging library)
1828       AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1829                    [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1830                                    [#ifndef PTHDB_VERSION_3
1831                                     #error
1832                                     #endif],
1833                                    gdb_cv_have_aix_thread_debug=yes,
1834                                    gdb_cv_have_aix_thread_debug=no)])
1835       AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1836       if test $gdb_cv_have_aix_thread_debug = yes; then
1837          CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1838          CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1839          LIBS="$LIBS -lpthdebug"
1840
1841          # Older versions of AIX do not provide the declaration for
1842          # the getthrds function (it appears that it was introduced
1843          # with AIX 6.x).
1844          AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1845       fi
1846       ;;
1847    esac
1848    AC_SUBST(CONFIG_LDFLAGS)
1849 fi
1850
1851 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1852 dnl other error codes.
1853 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1854    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1855                   gdb_cv_thread_db_h_has_td_notalloc,
1856      AC_TRY_COMPILE(
1857        [#include <thread_db.h>],
1858        [int i = TD_NOTALLOC;],
1859        gdb_cv_thread_db_h_has_td_notalloc=yes,
1860        gdb_cv_thread_db_h_has_td_notalloc=no
1861      )
1862    )
1863    AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1864                   gdb_cv_thread_db_h_has_td_version,
1865      AC_TRY_COMPILE(
1866        [#include <thread_db.h>],
1867        [int i = TD_VERSION;],
1868        gdb_cv_thread_db_h_has_td_version=yes,
1869        gdb_cv_thread_db_h_has_td_version=no
1870      )
1871    )
1872    AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1873                   gdb_cv_thread_db_h_has_td_notls,
1874      AC_TRY_COMPILE(
1875        [#include <thread_db.h>],
1876        [int i = TD_NOTLS;],
1877        gdb_cv_thread_db_h_has_td_notls=yes,
1878        gdb_cv_thread_db_h_has_td_notls=no
1879      )
1880    )
1881 fi
1882 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1883   AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1884             [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1885 fi
1886 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1887   AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1888             [Define if <thread_db.h> has the TD_VERSION error code.])
1889 fi
1890 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1891   AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1892             [Define if <thread_db.h> has the TD_NOTLS error code.])
1893 fi
1894
1895 dnl See if we have a sys/syscall header file that has __NR_tkill.
1896 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1897    AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1898                   gdb_cv_sys_syscall_h_has_tkill,
1899      AC_TRY_COMPILE(
1900        [#include <sys/syscall.h>],
1901        [int i = __NR_tkill;],
1902        gdb_cv_sys_syscall_h_has_tkill=yes,
1903        gdb_cv_sys_syscall_h_has_tkill=no
1904      )
1905    )
1906 fi
1907 dnl See if we can issue tkill syscall.
1908 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes"; then
1909   AC_CHECK_FUNC(syscall,
1910     AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1911   )
1912 fi
1913
1914 dnl Check if we can disable the virtual address space randomization.
1915 dnl The functionality of setarch -R.
1916 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1917 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1918 #      if !HAVE_DECL_ADDR_NO_RANDOMIZE
1919 #       define ADDR_NO_RANDOMIZE 0x0040000
1920 #      endif
1921        /* Test the flag could be set and stays set.  */
1922        personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1923        if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1924            return 1])])
1925 AC_RUN_IFELSE([PERSONALITY_TEST],
1926               [have_personality=true],
1927               [have_personality=false],
1928               [AC_LINK_IFELSE([PERSONALITY_TEST],
1929                               [have_personality=true],
1930                               [have_personality=false])])
1931 if $have_personality
1932 then
1933     AC_DEFINE([HAVE_PERSONALITY], 1,
1934               [Define if you support the personality syscall.])
1935 fi
1936
1937 dnl Set the host's .gdbinit filename.
1938 case $host_os in
1939   go32* | *djgpp*)
1940     gdbinit=gdb.ini
1941     ;;
1942   *)
1943     gdbinit=.gdbinit
1944     ;;
1945 esac
1946 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1947
1948 dnl Handle optional features that can be enabled.
1949
1950 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1951 # except that the argument to --with-sysroot is optional.
1952 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1953 if test "x$with_sysroot" = xyes; then
1954   with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1955 fi
1956 AC_ARG_WITH(sysroot,
1957   AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1958                  [search for usr/lib et al within DIR]),
1959   [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1960 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1961               [search for usr/lib et al within DIR])
1962 AC_SUBST(TARGET_SYSTEM_ROOT)
1963 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1964
1965 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1966     [automatically load a system-wide gdbinit file],
1967     [])
1968
1969 AC_ARG_ENABLE(werror,
1970   AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
1971   [case "${enableval}" in
1972      yes | y) ERROR_ON_WARNING="yes" ;;
1973      no | n)  ERROR_ON_WARNING="no" ;;
1974      *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1975    esac])
1976
1977 # Enable -Werror by default when using gcc.  Turn it off for releases.
1978 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then
1979     ERROR_ON_WARNING=yes
1980 fi
1981
1982 WERROR_CFLAGS=""
1983 if test "${ERROR_ON_WARNING}" = yes ; then
1984     WERROR_CFLAGS="-Werror"
1985 fi
1986
1987 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
1988 -Wpointer-sign \
1989 -Wno-unused -Wunused-value -Wunused-function \
1990 -Wno-switch -Wno-char-subscripts -Wmissing-prototypes \
1991 -Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type \
1992 -Wold-style-declaration -Wold-style-definition"
1993
1994 # Enable -Wno-format by default when using gcc on mingw since many
1995 # GCC versions complain about %I64.
1996 case "${host}" in
1997   *-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;
1998   *) build_warnings="$build_warnings -Wformat-nonliteral" ;;
1999 esac
2000
2001 AC_ARG_ENABLE(build-warnings,
2002 AS_HELP_STRING([--enable-build-warnings], [enable build-time compiler warnings if gcc is used]),
2003 [case "${enableval}" in
2004   yes)  ;;
2005   no)   build_warnings="-w";;
2006   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
2007         build_warnings="${build_warnings} ${t}";;
2008   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
2009         build_warnings="${t} ${build_warnings}";;
2010   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
2011 esac
2012 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
2013   echo "Setting compiler warning flags = $build_warnings" 6>&1
2014 fi])dnl
2015 AC_ARG_ENABLE(gdb-build-warnings,
2016 AS_HELP_STRING([--enable-gdb-build-warnings], [enable GDB specific build-time compiler warnings if gcc is used]),
2017 [case "${enableval}" in
2018   yes)  ;;
2019   no)   build_warnings="-w";;
2020   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
2021         build_warnings="${build_warnings} ${t}";;
2022   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
2023         build_warnings="${t} ${build_warnings}";;
2024   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
2025 esac
2026 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
2027   echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
2028 fi])dnl
2029 WARN_CFLAGS=""
2030 if test "x${build_warnings}" != x -a "x$GCC" = xyes
2031 then
2032     AC_MSG_CHECKING(compiler warning flags)
2033     # Separate out the -Werror flag as some files just cannot be
2034     # compiled with it enabled.
2035     for w in ${build_warnings}; do
2036         case $w in
2037         -Werr*) WERROR_CFLAGS=-Werror ;;
2038         *) # Check that GCC accepts it
2039             saved_CFLAGS="$CFLAGS"
2040             CFLAGS="$CFLAGS $w"
2041             AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
2042             CFLAGS="$saved_CFLAGS"
2043         esac
2044     done
2045     AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
2046 fi
2047 AC_SUBST(WARN_CFLAGS)
2048 AC_SUBST(WERROR_CFLAGS)
2049
2050 # In the Cygwin environment, we need some additional flags.
2051 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
2052 [AC_EGREP_CPP(^lose$, [
2053 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
2054 lose
2055 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
2056
2057
2058 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
2059 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
2060 case ${host} in
2061   *go32* ) SER_HARDWIRE=ser-go32.o ;;
2062   *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
2063   *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
2064 esac
2065 AC_SUBST(SER_HARDWIRE)
2066
2067 # libreadline needs libuser32.a in a cygwin environment
2068 WIN32LIBS=
2069 if test x$gdb_cv_os_cygwin = xyes; then
2070     WIN32LIBS="-luser32"
2071     case "${target}" in
2072         *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
2073         ;;
2074     esac
2075 fi
2076
2077 # The ser-tcp.c module requires sockets.
2078 case ${host} in
2079   *mingw32*)
2080     AC_DEFINE(USE_WIN32API, 1,
2081               [Define if we should use the Windows API, instead of the
2082                POSIX API.  On Windows, we use the Windows API when
2083                building for MinGW, but the POSIX API when building
2084                for Cygwin.])
2085     WIN32LIBS="$WIN32LIBS -lws2_32"
2086     ;;
2087 esac
2088 AC_SUBST(WIN32LIBS)
2089
2090 # Add ELF support to GDB, but only if BFD includes ELF support.
2091 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
2092                  [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
2093 if test $gdb_cv_var_elf = yes; then
2094   CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o"
2095   AC_DEFINE(HAVE_ELF, 1,
2096             [Define if ELF support should be included.])
2097   # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
2098   if test "$plugins" = "yes"; then
2099     AC_SEARCH_LIBS(dlopen, dl)
2100   fi
2101 fi
2102
2103 # Add macho support to GDB, but only if BFD includes it.
2104 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
2105                  [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
2106 if test $gdb_cv_var_macho = yes; then
2107   CONFIG_OBS="$CONFIG_OBS machoread.o"
2108 fi
2109
2110 # Add SOM support to GDB, but only if BFD includes it.
2111 GDB_AC_CHECK_BFD([for SOM support in BFD], gdb_cv_var_som,
2112                  [bfd_som_attach_aux_hdr (NULL, 0, NULL)], som.h)
2113 if test $gdb_cv_var_som = yes; then
2114   CONFIG_OBS="$CONFIG_OBS somread.o"
2115 fi
2116
2117 # Add any host-specific objects to GDB.
2118 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
2119
2120 # If building on ELF, look for lzma support for embedded compressed debug info.
2121 if test $gdb_cv_var_elf = yes; then
2122   AC_ARG_WITH(lzma,
2123     AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
2124     [], [with_lzma=auto])
2125   AC_MSG_CHECKING([whether to use lzma])
2126   AC_MSG_RESULT([$with_lzma])
2127
2128   if test "${with_lzma}" != no; then
2129     AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
2130                           [lzma_index_iter iter;
2131                            lzma_index_iter_init (&iter, 0);
2132                            lzma_mf_is_supported (LZMA_MF_HC3);])
2133     if test "$HAVE_LIBLZMA" != yes; then
2134       if test "$with_lzma" = yes; then
2135         AC_MSG_ERROR([missing liblzma for --with-lzma])
2136       fi
2137     fi
2138   fi
2139 fi
2140
2141 LIBGUI="../libgui/src/libgui.a"
2142 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
2143 AC_SUBST(LIBGUI)
2144 AC_SUBST(GUI_CFLAGS_X)
2145
2146 WIN32LDAPP=
2147 AC_SUBST(WIN32LIBS)
2148 AC_SUBST(WIN32LDAPP)
2149
2150 case "${host}" in
2151 *-*-cygwin* | *-*-mingw* )
2152     configdir="win"
2153     ;;
2154 *)
2155     configdir="unix"
2156     ;;
2157 esac
2158
2159 GDBTKLIBS=
2160 if test "${enable_gdbtk}" = "yes"; then
2161
2162     # Gdbtk must have an absolute path to srcdir in order to run
2163     # properly when not installed.
2164     here=`pwd`
2165     cd ${srcdir}
2166     GDBTK_SRC_DIR=`pwd`
2167     cd $here
2168
2169     SC_PATH_TCLCONFIG
2170
2171     # If $no_tk is nonempty, then we can't do Tk, and there is no
2172     # point to doing Tcl.
2173     SC_PATH_TKCONFIG
2174
2175     if test -z "${no_tcl}" -a -z "${no_tk}"; then
2176         SC_LOAD_TCLCONFIG
2177
2178         # Check for in-tree tcl
2179         here=`pwd`
2180         cd ${srcdir}/..
2181         topdir=`pwd`
2182         cd ${here}
2183
2184         intree="no"
2185         if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2186           intree="yes"
2187         fi
2188
2189         # Find Tcl private headers
2190         if test x"${intree}" = xno; then
2191           CY_AC_TCL_PRIVATE_HEADERS
2192           TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2193           TCL_LIBRARY="${TCL_LIB_SPEC}"
2194           TCL_DEPS=""
2195         else
2196           # If building tcl in the same src tree, private headers
2197           # are not needed, but we need to be sure to use the right
2198           # headers library
2199           TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2200           TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2201           TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2202         fi
2203         AC_SUBST(TCL_INCLUDE)
2204         AC_SUBST(TCL_LIBRARY)
2205         AC_SUBST(TCL_DEPS)
2206
2207         SC_LOAD_TKCONFIG
2208
2209         # Check for in-tree Tk
2210         intree="no"
2211         if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2212           intree="yes"
2213         fi
2214
2215         # Find Tk private headers
2216         if test x"${intree}" = xno; then
2217           CY_AC_TK_PRIVATE_HEADERS
2218           TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2219           TK_LIBRARY=${TK_LIB_SPEC}
2220           TK_DEPS=""
2221         else
2222           TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2223           TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2224           TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2225         fi
2226         AC_SUBST(TK_INCLUDE)
2227         AC_SUBST(TK_LIBRARY)
2228         AC_SUBST(TK_DEPS)
2229         AC_SUBST(TK_XINCLUDES)
2230
2231         ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2232
2233         # Include some libraries that Tcl and Tk want.
2234         TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2235         # Yes, the ordering seems wrong here.  But it isn't.
2236         # TK_LIBS is the list of libraries that need to be linked
2237         # after Tcl/Tk.  Note that this isn't put into LIBS.  If it
2238         # were in LIBS then any link tests after this point would
2239         # try to include things like `$(LIBGUI)', which wouldn't work.
2240         GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2241
2242         CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2243         CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2244         CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2245         CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2246         CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2247         CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2248         CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2249
2250         if test x$gdb_cv_os_cygwin = xyes; then
2251           WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2252           WIN32LDAPP="-Wl,--subsystem,console"
2253           CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2254         fi
2255
2256         AC_CONFIG_SUBDIRS(gdbtk)
2257     fi
2258 fi
2259
2260 AC_SUBST(X_CFLAGS)
2261 AC_SUBST(X_LDFLAGS)
2262 AC_SUBST(X_LIBS)
2263 AC_SUBST(GDBTKLIBS)
2264 AC_SUBST(GDBTK_CFLAGS)
2265 AC_SUBST(GDBTK_SRC_DIR)
2266
2267 AC_PATH_X
2268
2269 # Unlike the sim directory, whether a simulator is linked is controlled by
2270 # presence of a gdb_sim definition in the target configure.tgt entry.
2271 # This code just checks for a few cases where we'd like to ignore those
2272 # definitions, even when they're present in the '.mt' file.  These cases
2273 # are when --disable-sim is specified, or if the simulator directory is
2274 # not part of the source tree.
2275 #
2276 AC_ARG_ENABLE(sim,
2277 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2278 [echo "enable_sim = $enable_sim";
2279  echo "enableval = ${enableval}";
2280  case "${enableval}" in
2281   yes) ignore_sim=false ;;
2282   no)  ignore_sim=true ;;
2283   *)   ignore_sim=false ;;
2284  esac],
2285 [ignore_sim=false])
2286
2287 if test ! -d "${srcdir}/../sim"; then
2288   ignore_sim=true
2289 fi
2290
2291 SIM=
2292 SIM_OBS=
2293 if test "${ignore_sim}" = "false"; then
2294   if test x"${gdb_sim}" != x ; then
2295     SIM="${gdb_sim}"
2296     SIM_OBS="remote-sim.o"
2297     AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2298   fi
2299 fi
2300 AC_SUBST(SIM)
2301 AC_SUBST(SIM_OBS)
2302
2303 AC_SUBST(ENABLE_CFLAGS)
2304 AC_SUBST(PROFILE_CFLAGS)
2305
2306 AC_SUBST(CONFIG_OBS)
2307 AC_SUBST(CONFIG_DEPS)
2308 AC_SUBST(CONFIG_SRCS)
2309 AC_SUBST(CONFIG_ALL)
2310 AC_SUBST(CONFIG_CLEAN)
2311 AC_SUBST(CONFIG_INSTALL)
2312 AC_SUBST(CONFIG_UNINSTALL)
2313
2314 # List of host floatformats.
2315 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2316 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2317 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2318
2319 # target_subdir is used by the testsuite to find the target libraries.
2320 target_subdir=
2321 if test "${host}" != "${target}"; then
2322     target_subdir="${target_alias}/"
2323 fi
2324 AC_SUBST(target_subdir)
2325
2326 frags=
2327 if test "${gdb_native}" = "yes"; then
2328   host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2329   if test ! -f ${host_makefile_frag}; then
2330     AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2331   fi
2332   frags="$frags $host_makefile_frag"
2333 else
2334   host_makefile_frag=/dev/null
2335 fi
2336
2337 AC_SUBST_FILE(host_makefile_frag)
2338 AC_SUBST(frags)
2339
2340 changequote(,)dnl
2341 if test "${gdb_native}" = "yes"; then
2342 # We pick this up from the host configuration file (.mh) because we
2343 # do not have a native configuration Makefile fragment.
2344 nativefile=`sed -n '
2345 s/NAT_FILE[     ]*=[    ]*\([^  ]*\)/\1/p
2346 ' ${host_makefile_frag}`
2347 fi
2348 changequote([,])
2349
2350 if test x"${gdb_osabi}" != x ; then
2351     AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2352                        [Define to the default OS ABI for this configuration.])
2353 fi
2354
2355 # Enable multi-ice-gdb-server.
2356 AC_ARG_ENABLE(multi-ice,
2357 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2358   [case $enableval in
2359     yes | no)
2360       ;;
2361     *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2362   esac])
2363 if test "x$enable_multi_ice" = xyes; then
2364    AC_CONFIG_SUBDIRS(multi-ice)
2365 fi
2366
2367 AC_ARG_ENABLE(gdbserver,
2368 AS_HELP_STRING([--enable-gdbserver],
2369                [automatically build gdbserver (yes/no/auto, default is auto)]),
2370 [case "${enableval}" in
2371   yes| no|auto) ;;
2372   *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2373 esac],[enable_gdbserver=auto])
2374
2375 # We only build gdbserver automatically in a native configuration, and
2376 # only if the user did not explicitly disable its build.
2377 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2378   AC_MSG_CHECKING(whether gdbserver is supported on this host)
2379   if test "x$build_gdbserver" = xyes; then
2380     AC_MSG_RESULT(yes)
2381     AC_CONFIG_SUBDIRS(gdbserver)
2382     gdbserver_build_enabled=yes
2383   else
2384     AC_MSG_RESULT(no)
2385   fi
2386 fi
2387
2388 # If the user explicitly request the gdbserver to be built, verify that
2389 # we were in fact able to enable it.
2390 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2391   AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2392 fi
2393
2394 # Check for babeltrace and babeltrace-ctf
2395 AC_ARG_WITH(babeltrace,
2396   AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2397   [], [with_babeltrace=auto])
2398 AC_MSG_CHECKING([whether to use babeltrace])
2399 AC_MSG_RESULT([$with_babeltrace])
2400
2401 if test "x$with_babeltrace" = "xno"; then
2402   AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2403 else
2404   # Append -Werror to CFLAGS so that configure can catch the warning
2405   # "assignment from incompatible pointer type", which is related to
2406   # the babeltrace change from 1.0.3 to 1.1.0.  Babeltrace 1.1.0 works
2407   # in GDB, while babeltrace 1.0.3 is broken.
2408   # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2409   # safe to save and restore CFLAGS here.
2410   saved_CFLAGS=$CFLAGS
2411   CFLAGS="$CFLAGS -Werror"
2412   AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2413                         [#include <babeltrace/babeltrace.h>
2414                          #include <babeltrace/ctf/events.h>
2415                          #include <babeltrace/ctf/iterator.h>],
2416                         [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2417                         struct bt_ctf_event *event = NULL;
2418                         const struct bt_definition *scope;
2419
2420                         scope = bt_ctf_get_top_level_scope (event,
2421                                                            BT_STREAM_EVENT_HEADER);
2422                         bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2423                         ])
2424   CFLAGS=$saved_CFLAGS
2425
2426   if test "$HAVE_LIBBABELTRACE" != yes; then
2427      if test "$with_babeltrace" = yes; then
2428        AC_MSG_ERROR([babeltrace is missing or unusable])
2429      else
2430        AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2431      fi
2432   fi
2433 fi
2434
2435 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2436 # to an empty version.
2437
2438 files=
2439 links=
2440
2441 rm -f nm.h
2442 if test "${nativefile}" != ""; then
2443     case "${nativefile}" in
2444       nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2445       * ) GDB_NM_FILE="${nativefile}"
2446     esac
2447     files="${files} ${GDB_NM_FILE}"
2448     links="${links} nm.h"
2449     AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2450 fi
2451 AC_SUBST(GDB_NM_FILE)
2452
2453 AC_LINK_FILES($files, $links)
2454
2455 dnl Check for exe extension set on certain hosts (e.g. Win32)
2456 AC_EXEEXT
2457
2458 dnl  Detect the character set used by this host.
2459 dnl  At the moment, we just assume it's UTF-8.
2460 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2461           [Define to be a string naming the default host character set.])
2462
2463 # Undo the $ec_script escaping suitable for Makefile.
2464 transform=`echo "$program_transform_name" | sed -e 's/[\\$][\\$]/\\$/g'`
2465 GDB_TRANSFORM_NAME=`echo gdb | sed -e "$transform"`
2466 if test "x$GDB_TRANSFORM_NAME" = x; then
2467   GDB_TRANSFORM_NAME=gdb
2468 fi
2469 AC_SUBST(GDB_TRANSFORM_NAME)
2470 GCORE_TRANSFORM_NAME=`echo gcore | sed -e "$transform"`
2471 if test "x$GCORE_TRANSFORM_NAME" = x; then
2472   GCORE_TRANSFORM_NAME=gcore
2473 fi
2474 AC_SUBST(GCORE_TRANSFORM_NAME)
2475 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2476
2477 AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile,
2478 [
2479 case x$CONFIG_HEADERS in
2480 xconfig.h:config.in)
2481 echo > stamp-h ;;
2482 esac
2483 ])
2484
2485 exit 0