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dnl Autoconf configure script for GDB, the GNU debugger.

dnl Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,

dnl 2005, 2006, 2007, 2008, 2009, 2010

dnl Free Software Foundation, Inc.

dnl

dnl This file is part of GDB.

dnl

dnl This program is free software; you can redistribute it and/or modify

dnl it under the terms of the GNU General Public License as published by

dnl the Free Software Foundation; either version 3 of the License, or

dnl (at your option) any later version.

dnl

dnl This program is distributed in the hope that it will be useful,

dnl but WITHOUT ANY WARRANTY; without even the implied warranty of

dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

dnl GNU General Public License for more details.

dnl

dnl You should have received a copy of the GNU General Public License

dnl along with this program.  If not, see .

dnl Process this file with autoconf to produce a configure script.

AC_PREREQ(2.59)dnl

AC_INIT(main.c)

AC_CONFIG_HEADER(config.h:config.in)

AM_MAINTAINER_MODE

AC_PROG_CC

AC_USE_SYSTEM_EXTENSIONS

gl_EARLY

ACX_LARGEFILE

AM_PROG_CC_STDC

AC_CONFIG_AUX_DIR(..)

AC_CANONICAL_SYSTEM

# Dependency checking.

ZW_CREATE_DEPDIR

ZW_PROG_COMPILER_DEPENDENCIES([CC])

# Check for the 'make' the user wants to use.

AC_CHECK_PROGS(MAKE, make)

MAKE_IS_GNU=

case "`$MAKE --version 2>&1 | sed 1q`" in

  *GNU*)

    MAKE_IS_GNU=yes

    ;;

esac

AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)

AC_PROG_MAKE_SET

dnl List of object files and targets accumulated by configure.

CONFIG_OBS=

CONFIG_DEPS=

CONFIG_SRCS=

ENABLE_CFLAGS=

CONFIG_ALL=

CONFIG_CLEAN=

CONFIG_INSTALL=

CONFIG_UNINSTALL=

dnl Set up for gettext.

ZW_GNU_GETTEXT_SISTER_DIR

localedir='${datadir}/locale'

AC_SUBST(localedir)

if test x"$USE_NLS" = xyes; then

   CONFIG_ALL="$CONFIG_ALL all-po"

   CONFIG_CLEAN="$CONFIG_CLEAN clean-po"

   CONFIG_INSTALL="$CONFIG_INSTALL install-po"

   CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"

fi

gl_INIT

# For Makefile dependencies.

GNULIB_STDINT_H=

if test x"$STDINT_H" != x; then

  GNULIB_STDINT_H=gnulib/$STDINT_H

fi

AC_SUBST(GNULIB_STDINT_H)

PACKAGE=gdb

AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])

AC_SUBST(PACKAGE)

# GDB does not use automake, but gnulib does.  This line lets us

# generate its Makefile.in.

AM_INIT_AUTOMAKE(gdb, UNUSED-VERSION, [no-define])

GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,

    [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],

    [${libdir}/debug])

# GDB's datadir relocation

GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,

    [look for global separate data files in this path @<:@DATADIR/gdb@:>@],

    [${datadir}/gdb])

AC_ARG_WITH(relocated-sources,

AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),

[reloc_srcdir="${withval}"

 AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,

              [Relocated directory for source files. ])

])

AC_CONFIG_SUBDIRS(doc testsuite)

# Check whether to support alternative target configurations

AC_ARG_ENABLE(targets,

AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),

[case "${enableval}" in

  yes | "") AC_ERROR(enable-targets option must specify target names or 'all')

            ;;

  no)       enable_targets= ;;

  *)        enable_targets=$enableval ;;

esac])

# Check whether to enable 64-bit support on 32-bit hosts

AC_ARG_ENABLE(64-bit-bfd,

AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),

[case "${enableval}" in

  yes)  want64=true  ;;

  no)   want64=false ;;

  *)    AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;

esac],[want64=false])dnl

# Provide defaults for some variables set by the per-host and per-target

# configuration.

gdb_host_obs=posix-hdep.o

if test "${target}" = "${host}"; then

  gdb_native=yes

else

  gdb_native=no

fi

. $srcdir/configure.host

# Accumulate some settings from configure.tgt over all enabled targets

TARGET_OBS=

all_targets=

for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`

do

  if test "$targ_alias" = "all"; then

    all_targets=true

  else

    # Canonicalize the secondary target names.

    result=`$ac_config_sub $targ_alias 2>/dev/null`

    if test -n "$result"; then

        targ=$result

    else

        targ=$targ_alias

    fi

    . ${srcdir}/configure.tgt

    AS_IF([test -z "${gdb_target_obs}"],

      [AC_MSG_ERROR([configuration ${targ} is unsupported.])])

    # Target-specific object files

    for i in ${gdb_target_obs}; do

        case " $TARGET_OBS " in

        *" ${i} "*) ;;

        *)

          TARGET_OBS="$TARGET_OBS ${i}"

          ;;

        esac

    done

    # Check whether this target needs 64-bit CORE_ADDR

    if test x${want64} = xfalse; then

      . ${srcdir}/../bfd/config.bfd

    fi

  fi

done

if test x${all_targets} = xtrue; then

  # We want all 64-bit targets if we either:

  #  - run on a 64-bit host  or

  #  - already require 64-bit support for some other target  or

  #  - the --enable-64-bit-bfd option was supplied

  # Otherwise we only support all 32-bit targets.

  #

  # NOTE: This test must be in sync with the corresponding

  #       tests in BFD!

  if test x${want64} = xfalse; then

    AC_CHECK_SIZEOF(long)

    if test "x${ac_cv_sizeof_long}" = "x8"; then

      want64=true

    fi

  fi

  if test x${want64} = xtrue; then

    TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'

  else

    TARGET_OBS='$(ALL_TARGET_OBS)'

  fi

fi

AC_SUBST(TARGET_OBS)

# For other settings, only the main target counts.

gdb_sim=

gdb_osabi=

build_gdbserver=

targ=$target; . ${srcdir}/configure.tgt

# Fetch the default architecture and default target vector from BFD.

targ=$target; . $srcdir/../bfd/config.bfd

# We only want the first architecture, so strip off the others if

# there is more than one.

targ_archs=`echo $targ_archs | sed 's/ .*//'`

if test "x$targ_archs" != x; then

  AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,

    [Define to BFD's default architecture. ])

fi

if test "x$targ_defvec" != x; then

  AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,

    [Define to BFD's default target vector. ])

fi

# The CLI cannot be disabled yet, but may be in the future.

# Enable CLI.

AC_ARG_ENABLE(gdbcli,

AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),

  [case $enableval in

    yes)

      ;;

    no)

      AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;

    *)

      AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;

  esac],

  [enable_gdbcli=yes])

if test x"$enable_gdbcli" = xyes; then

  if test -d $srcdir/cli; then

    CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"

    CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"

    CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"

    ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"

  fi

fi

# Enable MI.

AC_ARG_ENABLE(gdbmi,

AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),

  [case $enableval in

    yes | no)

      ;;

    *)

      AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;

  esac],

  [enable_gdbmi=yes])

if test x"$enable_gdbmi" = xyes; then

  if test -d $srcdir/mi; then

    CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"

    CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"

    CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"

    ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"

  fi

fi

# Enable TUI.

AC_ARG_ENABLE(tui,

AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),

  [case $enableval in

    yes | no | auto)

      ;;

    *)

      AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;

  esac],enable_tui=auto)

# Enable gdbtk.

AC_ARG_ENABLE(gdbtk,

AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),

  [case $enableval in

    yes | no)

      ;;

    *)

      AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;

  esac],

  [if test -d $srcdir/gdbtk; then

    enable_gdbtk=yes

  else

    enable_gdbtk=no

  fi])

# We unconditionally disable gdbtk tests on selected platforms.

case $host_os in

  go32* | windows*)

    AC_MSG_WARN([gdbtk isn't supported on $host; disabling])

    enable_gdbtk=no ;;

esac

# Libunwind support.

AC_ARG_WITH(libunwind,

AS_HELP_STRING([--with-libunwind], [use libunwind frame unwinding support]),

[case "${withval}" in

  yes)  enable_libunwind=yes ;;

  no)   enable_libunwind=no ;;

  *)    AC_MSG_ERROR(bad value ${withval} for GDB with-libunwind option) ;;

esac],[

  AC_CHECK_HEADERS(libunwind.h libunwind-ia64.h)

  if test x"$ac_cv_header_libunwind_h" = xyes -a x"$ac_cv_header_libunwind_ia64_h" = xyes; then

    enable_libunwind=yes;

  fi

])

if test x"$enable_libunwind" = xyes; then

  AC_CHECK_HEADERS(libunwind.h libunwind-ia64.h)

  AC_DEFINE(HAVE_LIBUNWIND, 1, [Define if libunwind library is being used.])

  CONFIG_OBS="$CONFIG_OBS libunwind-frame.o"

  CONFIG_DEPS="$CONFIG_DEPS libunwind-frame.o"

  CONFIG_SRCS="$CONFIG_SRCS libunwind-frame.c"

fi

opt_curses=no

AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)

prefer_curses=no

if test "$opt_curses" = "yes"; then

  prefer_curses=yes

fi

# Profiling support.

AC_ARG_ENABLE(profiling,

AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),

  [case $enableval in

    yes | no)

      ;;

    *)

      AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;

  esac],

 [enable_profiling=no])

AC_CHECK_FUNCS(monstartup _mcleanup)

AC_CACHE_CHECK([for _etext], ac_cv_var__etext,

[AC_TRY_LINK(

[#include 

extern char _etext;

],

[free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])

if test $ac_cv_var__etext = yes; then

  AC_DEFINE(HAVE__ETEXT, 1,

            [Define to 1 if your system has the _etext variable. ])

fi

AC_CACHE_CHECK([for etext], ac_cv_var_etext,

[AC_TRY_LINK(

[#include 

extern char etext;

],

[free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])

if test $ac_cv_var_etext = yes; then

  AC_DEFINE(HAVE_ETEXT, 1,

            [Define to 1 if your system has the etext variable. ])

fi

if test "$enable_profiling" = yes ; then

  if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then

    AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)

  fi

  PROFILE_CFLAGS=-pg

  OLD_CFLAGS="$CFLAGS"

  CFLAGS="$CFLAGS $PROFILE_CFLAGS"

  AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,

    [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,

     ac_cv_cc_supports_pg=no)])

  if test $ac_cv_cc_supports_pg = no; then

    AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)

  fi

  CFLAGS="$OLD_CFLAGS"

fi

ACX_PKGVERSION([GDB])

ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])

AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])

AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])

# --------------------- #

# Checks for programs.  #

# --------------------- #

AC_PROG_AWK

AC_PROG_INSTALL

AC_PROG_LN_S

AC_PROG_RANLIB

AC_PROG_YACC

AC_CHECK_TOOL(AR, ar)

AC_CHECK_TOOL(DLLTOOL, dlltool)

AC_CHECK_TOOL(WINDRES, windres)

# Needed for GNU/Hurd.

AC_CHECK_TOOL(MIG, mig)

# ---------------------- #

# Checks for libraries.  #

# ---------------------- #

# We might need to link with -lm; most simulators need it.

AC_CHECK_LIB(m, main)

# We need to link with -lw to get `wctype' on Solaris before Solaris

# 2.6.  Solaris 2.6 and beyond have this function in libc, and have a

# libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1

# is known to have this problem).  Therefore we avoid libw if we can.

AC_CHECK_FUNC(wctype, [],

  [AC_CHECK_LIB(w, wctype)])

# Some systems (e.g. Solaris) have `gethostbyname' in libnsl.

AC_SEARCH_LIBS(gethostbyname, nsl)

# Some systems (e.g. Solaris) have `socketpair' in libsocket.

AC_SEARCH_LIBS(socketpair, socket)

# Link in zlib if we can.  This allows us to read compressed debug sections.

AM_ZLIB

# On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).

AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl])

AM_ICONV

# On alpha-osf, it appears that libtermcap and libcurses are not compatible.

# There is a very specific comment in /usr/include/curses.h explaining that

# termcap routines built into libcurses must not be used.

#

# The symptoms we observed so far is GDB unexpectedly changing

# the terminal settings when tgetent is called - this is particularly

# visible as the output is missing carriage returns, and so rapidly

# becomes very hard to read.

#

# The readline configure script has already decided that libtermcap

# was enough for its purposes, and so decided to build readline using

# libtermcap.  Since the TUI mode requires curses, building GDB with

# TUI enabled results in both libraries to be used at the same time,

# which is not allowed.  This basically means that GDB with TUI is

# broken on alpha-osf.

case $host_os in

  osf* )

    if test x"$enable_tui" = xyes; then

      AC_MSG_ERROR([Building GDB with TUI mode is not supported on this host])

    fi

    if test x"$enable_tui" = xauto; then

      enable_tui=no

    fi

    ;;

esac

# For the TUI, we need enhanced curses functionality.

if test x"$enable_tui" != xno; then

  prefer_curses=yes

fi

curses_found=no

if test x"$prefer_curses" = xyes; then

  # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied

  # curses library because the latter might not provide all the

  # functionality we need.  However, this leads to problems on systems

  # where the linker searches /usr/local/lib, but the compiler doesn't

  # search /usr/local/include, if ncurses is installed in /usr/local.  A

  # default installation of ncurses on alpha*-dec-osf* will lead to such

  # a situation.

  AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])

  if test "$ac_cv_search_waddstr" != no; then

    curses_found=yes

  fi

fi

# Check whether we should enable the TUI, but only do so if we really

# can.

if test x"$enable_tui" != xno; then

  if test -d $srcdir/tui; then

    if test "$curses_found" != no; then

      CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"

      CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"

      CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"

      ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"

      CONFIG_ALL="${CONFIG_ALL} all-tui"

      CONFIG_CLEAN="${CONFIG_CLEAN} clean-tui"

      CONFIG_INSTALL="${CONFIG_INSTALL} install-tui"

      CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-tui"

    else

      if test x"$enable_tui" = xyes; then

        AC_MSG_ERROR([no enhanced curses library found; disable TUI])

      else

        AC_MSG_WARN([no enhanced curses library found; disabling TUI])

      fi

    fi

  fi

fi

# Since GDB uses Readline, we need termcap functionality.  In many

# cases this will be provided by the curses library, but some systems

# have a seperate termcap library, or no curses library at all.

case $host_os in

  cygwin*)

    if test -d $srcdir/libtermcap; then

      LIBS="../libtermcap/libtermcap.a $LIBS"

      ac_cv_search_tgetent="../libtermcap/libtermcap.a"

    fi ;;

  go32* | *djgpp*)

    ac_cv_search_tgetent="none required"

    ;;

  *mingw32*)

    ac_cv_search_tgetent="none required"

    CONFIG_OBS="$CONFIG_OBS windows-termcap.o"

    ;;

esac

# These are the libraries checked by Readline.

AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])

if test "$ac_cv_search_tgetent" = no; then

  AC_MSG_ERROR([no termcap library found])

fi

AC_ARG_WITH([system-readline],

  [AS_HELP_STRING([--with-system-readline],

                  [use installed readline library])])

if test "$with_system_readline" = yes; then

  READLINE=-lreadline

  READLINE_DEPS=

  READLINE_CFLAGS=

  # readline-6.0 started to use the name `_rl_echoing_p'.

  # `$(READLINE_DIR)/' of bundled readline would not resolve in configure.

  AC_MSG_CHECKING([for readline_echoing_p])

  save_LIBS=$LIBS

  LIBS="$LIBS $READLINE"

  AC_LINK_IFELSE(AC_LANG_PROGRAM(,[[extern int readline_echoing_p;

                                    return readline_echoing_p;]]),

                 [READLINE_ECHOING_P=yes],

                 [READLINE_ECHOING_P=no

                  AC_DEFINE([readline_echoing_p], [_rl_echoing_p],

                            [readline-6.0 started to use different name.])])

  LIBS="$save_LIBS"

  AC_MSG_RESULT([$READLINE_ECHOING_P])

else

  READLINE='$(READLINE_DIR)/libreadline.a'

  READLINE_DEPS='$(READLINE)'

  READLINE_CFLAGS='-I$(READLINE_SRC)/..'

fi

AC_SUBST(READLINE)

AC_SUBST(READLINE_DEPS)

AC_SUBST(READLINE_CFLAGS)

AC_ARG_WITH(expat,

  AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),

  [], [with_expat=auto])

AC_MSG_CHECKING([whether to use expat])

AC_MSG_RESULT([$with_expat])

if test "${with_expat}" = no; then

  AC_MSG_WARN([expat support disabled; some features may be unavailable.])

  HAVE_LIBEXPAT=no

else

  AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],

                        [XML_Parser p = XML_ParserCreate (0);])

  if test "$HAVE_LIBEXPAT" != yes; then

    if test "$with_expat" = yes; then

      AC_MSG_ERROR([expat is missing or unusable])

    else

      AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])

    fi

  else

    save_LIBS=$LIBS

    LIBS="$LIBS $LIBEXPAT"

    AC_CHECK_FUNCS(XML_StopParser)

    LIBS=$save_LIBS

  fi

fi

dnl Utility to simplify finding libpython.

AC_DEFUN([AC_TRY_LIBPYTHON],

[

  version=$1

  define([have_libpython_var],$2)

  define([VERSION],[translit([$1],[abcdefghijklmnopqrstuvwxyz./-],

                                  [ABCDEFGHIJKLMNOPQRSTUVWXYZ___])])

  [HAVE_LIB]VERSION=no

  AC_MSG_CHECKING([for ${version}])

  save_LIBS=$LIBS

  LIBS="$LIBS -l${version}"

  AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "${version}/Python.h"]],

                                 [[Py_Initialize ();]]),

                 [[HAVE_LIB]VERSION=yes

                  have_libpython_var=yes],

                 [LIBS=$save_LIBS])

  AC_MSG_RESULT([$[HAVE_LIB]VERSION])

])

AC_ARG_WITH(python,

  AS_HELP_STRING([--with-python], [include python support (auto/yes/no/)]),

  [], [with_python=auto])

AC_MSG_CHECKING([whether to use python])

AC_MSG_RESULT([$with_python])

if test "${with_python}" = no; then

  AC_MSG_WARN([python support disabled; some features may be unavailable.])

  have_libpython=no

else

  case "${with_python}" in

  yes | auto)

    # Leave as empty, use defaults.

    python_includes=

    python_libs=

    ;;

  /*)

    python_includes="-I${with_python}/include"

    python_libs="-L${with_python}/lib"

    ;;

  *)

    AC_ERROR(invalid value for --with-python)

    ;;

  esac

  save_CPPFLAGS=$CPPFLAGS

  CPPFLAGS="$CPPFLAGS ${python_includes}"

  save_LIBS=$LIBS

  LIBS="$LIBS ${python_libs}"

  have_libpython=no

  if test "${have_libpython}" = no; then

    AC_TRY_LIBPYTHON(python2.6, have_libpython)

    if test "${HAVE_LIBPYTHON2_6}" = yes; then

      AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])

    fi

  fi

  if test ${have_libpython} = no; then

    AC_TRY_LIBPYTHON(python2.5, have_libpython)

    if test "${HAVE_LIBPYTHON2_5}" = yes; then

      AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])

    fi

  fi

  if test ${have_libpython} = no; then

    AC_TRY_LIBPYTHON(python2.4, have_libpython)

    if test "${HAVE_LIBPYTHON2_4}" = yes; then

      AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])

    fi

  fi

  if test ${have_libpython} = no; then

    case "${with_python}" in

    yes)

      AC_MSG_ERROR([python is missing or unusable])

      ;;

    auto)

      AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])

      ;;

    *)

      AC_MSG_ERROR([no usable python found at ${with_python}])

      ;;

    esac

    CPPFLAGS=$save_CPPFLAGS

    LIBS=$save_LIBS

  fi

fi

if test "${have_libpython}" = yes; then

  AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])

  CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"

  CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"

  CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"

  ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"

  # Flags needed to compile Python code (taken from python-config --cflags).

  # We cannot call python-config directly because it will output whatever was

  # used when compiling the Python interpreter itself, including flags which

  # would make the python-related objects be compiled differently from the

  # rest of GDB (e.g., -O2 and -fPIC).

  if test "${GCC}" = yes; then

    tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"

  fi

  if test "x${tentative_python_cflags}" != x; then

    AC_MSG_CHECKING(compiler flags for python code)

    for flag in ${tentative_python_cflags}; do

      # Check that the compiler accepts it

      saved_CFLAGS="$CFLAGS"

      CFLAGS="$CFLAGS $flag"

      AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)

      CFLAGS="$saved_CFLAGS"

    done

    AC_MSG_RESULT(${PYTHON_CFLAGS})

  fi

else

  # Even if Python support is not compiled in, we need to have these files

  # included in order to recognize the GDB command "python".

  CONFIG_OBS="$CONFIG_OBS python.o py-value.o py-prettyprint.o"

  CONFIG_SRCS="$CONFIG_SRCS python/python.c python/py-value.c python/py-prettyprint.c"

fi

AC_SUBST(PYTHON_CFLAGS)

# ------------------------- #

# Checks for header files.  #

# ------------------------- #

AC_HEADER_DIRENT

AC_HEADER_STAT

AC_HEADER_STDC

# elf_hp.h is for HP/UX 64-bit shared library support.

# FIXME: kettenis/20030102: In most cases we include these (ctype.h, time.h)

# unconditionally, so what's the point in checking these?

AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \

                  thread_db.h gnu/libc-version.h signal.h stddef.h \

                  stdlib.h string.h memory.h strings.h sys/fault.h \

                  sys/file.h sys/filio.h sys/ioctl.h sys/param.h \

                  sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \

                  sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \

                  sys/types.h sys/wait.h wait.h termios.h termio.h \

                  sgtty.h unistd.h elf_hp.h ctype.h time.h locale.h])

AC_CHECK_HEADERS(link.h, [], [],

[#if HAVE_SYS_TYPES_H

# include 

#endif

#if HAVE_NLIST_H

# include 

#endif

])

AC_CHECK_HEADERS(sys/proc.h, [], [],

[#if HAVE_SYS_PARAM_H

# include 

#endif

])

AC_CHECK_HEADERS(sys/user.h, [], [],

[#if HAVE_SYS_PARAM_H

# include 

#endif

])

# On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash

# between  and  that would cause AC_CHECK_HEADERS to

# think that we don't have  if we're using GCC.

case $host_os in

  solaris2.[[789]])

    if test "$GCC" = yes; then

      AC_DEFINE(_MSE_INT_H, 1,

        [Define to 1 to avoid a clash between  and  on

   Solaris 2.[789] when using GCC. ])

    fi ;;

esac

AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)

AC_CHECK_HEADERS(term.h, [], [],

[#if HAVE_CURSES_H

# include 

#endif

])

# ------------------------- #

# Checks for declarations.  #

# ------------------------- #

AC_CHECK_DECLS([free, malloc, realloc, strerror, strstr, getopt,

                snprintf, vsnprintf])

AM_LC_MESSAGES

# ----------------------- #

# Checks for structures.  #

# ----------------------- #

AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])

# ------------------ #

# Checks for types.  #

# ------------------ #

AC_TYPE_SIGNAL

AC_CHECK_TYPES(socklen_t, [], [],

[#include 

#include 

])

# ------------------------------------- #

# Checks for compiler characteristics.  #

# ------------------------------------- #

AC_C_CONST

AC_C_INLINE

AC_C_BIGENDIAN

# ------------------------------ #

# Checks for library functions.  #

# ------------------------------ #

AC_FUNC_ALLOCA

AC_FUNC_MMAP

AC_FUNC_VFORK

AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid \

                getgid pipe poll pread64 sbrk setpgid setpgrp setsid \

                sigaction sigprocmask sigsetmask socketpair syscall \

                ttrace wborder setlocale iconvlist libiconvlist btowc \

                setrlimit getrlimit])

AM_LANGINFO_CODESET

# Check the return and argument types of ptrace.  No canned test for

# this, so roll our own.

gdb_ptrace_headers='

#if HAVE_SYS_TYPES_H

# include 

#endif

#if HAVE_SYS_PTRACE_H

# include 

#endif

#if HAVE_UNISTD_H

# include 

#endif

'

# There is no point in checking if we don't have a prototype.

AC_CHECK_DECLS(ptrace, [], [

  : ${gdb_cv_func_ptrace_ret='int'}

  : ${gdb_cv_func_ptrace_args='int,int,long,long'}

], $gdb_ptrace_headers)

# Check return type.  Varargs (used on GNU/Linux) conflict with the

# empty argument list, so check for that explicitly.

AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,

  AC_TRY_COMPILE($gdb_ptrace_headers,

    [extern long ptrace (enum __ptrace_request, ...);],

    gdb_cv_func_ptrace_ret='long',

    AC_TRY_COMPILE($gdb_ptrace_headers,

      [extern int ptrace ();],

      gdb_cv_func_ptrace_ret='int',

      gdb_cv_func_ptrace_ret='long')))

AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,

  [Define as the return type of ptrace.])

# Check argument types.

AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [

  AC_TRY_COMPILE($gdb_ptrace_headers,

    [extern long ptrace (enum __ptrace_request, ...);],

    [gdb_cv_func_ptrace_args='int,int,long,long'],[

for gdb_arg1 in 'int' 'long'; do

 for gdb_arg2 in 'pid_t' 'int' 'long'; do

  for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do

   for gdb_arg4 in 'int' 'long'; do

     AC_TRY_COMPILE($gdb_ptrace_headers, [

extern $gdb_cv_func_ptrace_ret

  ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);

], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";

    break 4;])

    for gdb_arg5 in 'int *' 'int' 'long'; do

     AC_TRY_COMPILE($gdb_ptrace_headers, [

extern $gdb_cv_func_ptrace_ret

  ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);

], [

gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";

    break 5;])

    done

   done

  done

 done

done

# Provide a safe default value.

: ${gdb_cv_func_ptrace_args='int,int,long,long'}

])])

ac_save_IFS=$IFS; IFS=','

set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`

IFS=$ac_save_IFS

shift

AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],

  [Define to the type of arg 3 for ptrace.])

if test -n "$[5]"; then

  AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],

    [Define to the type of arg 5 for ptrace.])

fi

dnl AC_FUNC_SETPGRP does not work when cross compiling

dnl Instead, assume we will have a prototype for setpgrp if cross compiling.

if test "$cross_compiling" = no; then

  AC_FUNC_SETPGRP

else

  AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,

    [AC_TRY_COMPILE([

#include 

], [

  if (setpgrp(1,1) == -1)

    exit (0);

  else

    exit (1);

], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])

if test $ac_cv_func_setpgrp_void = yes; then

  AC_DEFINE(SETPGRP_VOID, 1)

fi

fi

# Check if sigsetjmp is available.  Using AC_CHECK_FUNCS won't do

# since sigsetjmp might only be defined as a macro.

AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,

[AC_TRY_COMPILE([

#include 

], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],

gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])

if test $gdb_cv_func_sigsetjmp = yes; then

  AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])

fi

# Assume we'll default to using the included libiberty regex.

gdb_use_included_regex=yes

# However, if the system regex is GNU regex, then default to *not*

# using the included regex.

AC_CACHE_CHECK(

  [for GNU regex],

  [gdb_cv_have_gnu_regex],

  [AC_TRY_COMPILE(

    [#include ],

    [#define REGEX_INTERFACE_VERSION 1

#if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION

# error "Version mismatch"

#endif],

    gdb_cv_have_gnu_regex=yes,

    gdb_cv_have_gnu_regex=no)])

if test $gdb_cv_have_gnu_regex = yes; then

  gdb_use_included_regex=no

fi

AC_ARG_WITH(included-regex,

  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)]),

  gdb_with_regex=$withval,

  gdb_with_regex=$gdb_use_included_regex)

if test "$gdb_with_regex" = yes; then

  AC_DEFINE(USE_INCLUDED_REGEX, 1,