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configure.ac
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dnl Autoconf configure script for GDB, the GNU debugger.
dnl Copyright (C) 1995-2015 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 <http://www.gnu.org/licenses/>.
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
# Set the 'development' global.
. $srcdir/../bfd/development.sh
AC_PROG_CC
AC_PROG_CXX
AC_USE_SYSTEM_EXTENSIONS
ACX_LARGEFILE
AM_PROG_CC_STDC
AM_PROG_INSTALL_STRIP
AC_CONFIG_AUX_DIR(..)
AC_CANONICAL_SYSTEM
AC_ARG_PROGRAM
# See if we are building with C++, and substitute COMPILER.
GDB_AC_BUILD_WITH_CXX
# Dependency checking.
ZW_CREATE_DEPDIR
ZW_PROG_COMPILER_DEPENDENCIES([CC])
# Check for the 'make' the user wants to use.
AC_CHECK_PROGS(MAKE, make)
MAKE_IS_GNU=
case "`$MAKE --version 2>&1 | sed 1q`" in
*GNU*)
MAKE_IS_GNU=yes
;;
esac
AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
AC_PROG_MAKE_SET
gnulib_extra_configure_args=
# If large-file support is disabled, make sure gnulib does the same.
if test "$enable_largefile" = no; then
gnulib_extra_configure_args="$gnulib_extra_configure_args --disable-largefile"
fi
# Configure gnulib. We need to build gnulib under some other
# directory not "gnulib", to avoid the problem of both GDB and
# GDBserver wanting to build it in the same directory, when building
# in the source dir.
ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"],
["$gnulib_extra_configure_args"])
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
GNULIB=build-gnulib/import
# 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)
# We never need to detect it in this sub-configure.
# But preserve it for config.status --recheck.
AC_ARG_VAR(MAKEINFO,
[Parent configure detects if it is of sufficient version.])
AC_ARG_VAR(MAKEINFOFLAGS,
[Parameters for MAKEINFO.])
MAKEINFO_EXTRA_FLAGS=""
AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
[echo '@clicksequence{a @click{} b}' >conftest.texinfo
if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
gdb_cv_have_makeinfo_click=yes
else
gdb_cv_have_makeinfo_click=no
fi])
if test x"$gdb_cv_have_makeinfo_click" = xyes; then
MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
fi
AC_SUBST(MAKEINFO_EXTRA_FLAGS)
GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
[look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
[${libdir}/debug])
# We can't pass paths as command line arguments.
# Mingw32 tries to be clever and will convert the paths for us.
# For example -DBINDIR="/usr/local/bin" passed on the command line may get
# converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
# This breaks GDB's relocatable path conversions since paths passed in
# config.h would not get so translated, the path prefixes no longer match.
AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
# GDB's datadir relocation
GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
[look for global separate data files in this path @<:@DATADIR/gdb@:>@],
[${datadir}/gdb])
AC_ARG_WITH(relocated-sources,
AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
[reloc_srcdir="${withval}"
AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
[Relocated directory for source files. ])
])
AC_MSG_CHECKING([for default auto-load directory])
AC_ARG_WITH(auto-load-dir,
AS_HELP_STRING([--with-auto-load-dir=PATH],
[directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
[with_auto_load_dir='$debugdir:$datadir/auto-load'])
escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
[Directories from which to load auto-loaded scripts.])
AC_MSG_RESULT([$with_auto_load_dir])
AC_MSG_CHECKING([for default auto-load safe-path])
AC_ARG_WITH(auto-load-safe-path,
AS_HELP_STRING([--with-auto-load-safe-path=PATH],
[directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
AS_HELP_STRING([--without-auto-load-safe-path],
[do not restrict auto-loaded files locations]),
[if test "$with_auto_load_safe_path" = "no"; then
with_auto_load_safe_path="/"
fi],
[with_auto_load_safe_path="$with_auto_load_dir"])
escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
[Directories safe to hold auto-loaded files.])
AC_MSG_RESULT([$with_auto_load_safe_path])
AC_CONFIG_SUBDIRS(testsuite)
# Check whether to support alternative target configurations
AC_ARG_ENABLE(targets,
AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
[case "${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
# Add in the common host objects.
. $srcdir/common/common.host
gdb_host_obs="$gdb_host_obs $common_host_obs"
# Accumulate some settings from configure.tgt over all enabled targets
TARGET_OBS=
all_targets=
HAVE_NATIVE_GCORE_TARGET=
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
# Check whether this target is native and supports gcore.
if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
&& $gdb_have_gcore; then
HAVE_NATIVE_GCORE_TARGET=1
fi
fi
done
if test x${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)
AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
# 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 $host; disabling])
enable_gdbtk=no ;;
esac
# Libunwind support for ia64.
AC_ARG_WITH(libunwind-ia64,
AS_HELP_STRING([--with-libunwind-ia64],
[use libunwind frame unwinding for ia64 targets]),,
[with_libunwind_ia64=auto])
# Backward compatibility option.
if test "${with_libunwind+set}" = set; then
if test x"$with_libunwind_ia64" != xauto; then
AC_MSG_ERROR(
[option --with-libunwind is deprecated, use --with-libunwind-ia64])
fi
AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
with_libunwind_ia64="$with_libunwind"
fi
case "$with_libunwind_ia64" in
yes | no)
;;
auto)
AC_CHECK_HEADERS(libunwind-ia64.h)
with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
;;
*)
AC_MSG_ERROR(
[bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
;;
esac
if test x"$with_libunwind_ia64" = xyes; then
AC_CHECK_HEADERS(libunwind-ia64.h)
if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
fi
CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.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 <stdlib.h>
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 <stdlib.h>
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)
case $host_os in
gnu*)
# Needed for GNU Hurd hosts.
AC_CHECK_TOOL(MIG, mig)
if test x"$MIG" = x; then
AC_MSG_ERROR([MIG not found but required for $host hosts])
fi
;;
esac
# ---------------------- #
# Checks for libraries. #
# ---------------------- #
# We might need to link with -lm; most simulators need it.
AC_CHECK_LIB(m, main)
# We need to link with -lw to get `wctype' on Solaris before Solaris
# 2.6. Solaris 2.6 and beyond have this function in libc, and have a
# libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
# is known to have this problem). Therefore we avoid libw if we can.
AC_CHECK_FUNC(wctype, [],
[AC_CHECK_LIB(w, wctype)])
# Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
AC_SEARCH_LIBS(gethostbyname, nsl)
# Some systems (e.g. Solaris) have `socketpair' in libsocket.
AC_SEARCH_LIBS(socketpair, socket)
# Link in zlib if we can. This allows us to read compressed debug sections.
AM_ZLIB
# On FreeBSD we may need libutil for kinfo_getvmmap (used by fbsd-nat.c).
AC_SEARCH_LIBS(kinfo_getvmmap, util,
[AC_DEFINE(HAVE_KINFO_GETVMMAP, 1,
[Define to 1 if your system has the kinfo_getvmmap function. ])])
AM_ICONV
# GDB may fork/exec the iconv program to get the list of supported character
# sets. Allow the user to specify where to find it.
# There are several factors affecting the choice of option name:
# - There is already --with-libiconv-prefix but we can't use it, it specifies
# the build-time location of libiconv files.
# - The program we need to find is iconv, which comes with glibc. The user
# doesn't necessarily have libiconv installed. Therefore naming this
# --with-libiconv-foo feels wrong.
# - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
# defined to work on directories not files (though it really doesn't know
# the difference).
# - Calling this --with-iconv-prefix is perceived to cause too much confusion
# with --with-libiconv-prefix.
# Putting these together is why the option name is --with-iconv-bin.
AC_ARG_WITH(iconv-bin,
AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
[iconv_bin="${withval}"
AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
[Path of directory of iconv program.])
GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
])
# For the TUI, we need enhanced curses functionality.
if test x"$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)"
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 $LIBS"
ac_cv_search_tgetent="../libtermcap/libtermcap.a"
fi ;;
go32* | *djgpp*)
ac_cv_search_tgetent="none required"
;;
esac
# These are the libraries checked by Readline.
AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
if test "$ac_cv_search_tgetent" = no; then
CONFIG_OBS="$CONFIG_OBS stub-termcap.o"
fi
AC_ARG_WITH([system-readline],
[AS_HELP_STRING([--with-system-readline],
[use installed readline library])])
if test "$with_system_readline" = yes; then
READLINE=-lreadline
READLINE_DEPS=
READLINE_CFLAGS=
READLINE_TEXI_INCFLAG=
else
READLINE='$(READLINE_DIR)/libreadline.a'
READLINE_DEPS='$(READLINE)'
READLINE_CFLAGS='-I$(READLINE_SRC)/..'
READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
fi
AC_SUBST(READLINE)
AC_SUBST(READLINE_DEPS)
AC_SUBST(READLINE_CFLAGS)
AC_SUBST(READLINE_TEXI_INCFLAG)
# Generate jit-reader.h
# This is typedeffed to GDB_CORE_ADDR in jit-reader.h
TARGET_PTR=
AC_CHECK_SIZEOF(unsigned long long)
AC_CHECK_SIZEOF(unsigned long)
AC_CHECK_SIZEOF(unsigned __int128)
if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
TARGET_PTR="unsigned long"
elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
TARGET_PTR="unsigned long long"
elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
TARGET_PTR="unsigned __int128"
else
TARGET_PTR="unsigned long"
fi
AC_SUBST(TARGET_PTR)
AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
AC_SEARCH_LIBS(dlopen, dl)
GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
[directory to load the JIT readers from],
[${libdir}/gdb])
AC_ARG_WITH(expat,
AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
[], [with_expat=auto])
AC_MSG_CHECKING([whether to use expat])
AC_MSG_RESULT([$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
# --------------------- #
# Check for libpython. #
# --------------------- #
dnl Utility to simplify finding libpython.
dnl $1 = pythonX.Y
dnl $2 = the shell variable to assign the result to
dnl If libpython is found we store $version here.
dnl $3 = additional flags to add to CPPFLAGS
dnl $4 = additional flags to add to LIBS
AC_DEFUN([AC_TRY_LIBPYTHON],
[
version=$1
define([have_libpython_var],$2)
new_CPPFLAGS=$3
new_LIBS=$4
AC_MSG_CHECKING([for ${version}])
save_CPPFLAGS=$CPPFLAGS
save_LIBS=$LIBS
CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
LIBS="$LIBS $new_LIBS"
found_usable_python=no
AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
[[Py_Initialize ();]]),
[have_libpython_var=${version}
found_usable_python=yes
PYTHON_CPPFLAGS=$new_CPPFLAGS
PYTHON_LIBS=$new_LIBS])
CPPFLAGS=$save_CPPFLAGS
LIBS=$save_LIBS
AC_MSG_RESULT([${found_usable_python}])
])
dnl There are several different values for --with-python:
dnl
dnl no - Don't include python support.
dnl yes - Include python support, error if it's missing.
dnl If we find python in $PATH, use it to fetch configure options,
dnl otherwise assume the compiler can find it with no help from us.
dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
dnl auto - Same as "yes", but if python is missing from the system,
dnl fall back to "no".
dnl /path/to/python/exec-prefix -
dnl Use the python located in this directory.
dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
dnl the compilation parameters. Otherwise use
dnl -I/path/to/python/exec-prefix/include,
dnl -L/path/to/python/exec-prefix/lib.
dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
dnl NOTE: This case is historical. It is what was done for 7.0/7.1
dnl but is deprecated.
dnl /path/to/python/executable -
dnl Run python-config.py with this version of python to fetch the
dnl compilation parameters.
dnl NOTE: This needn't be the real python executable.
dnl In a cross-compilation scenario (build != host), this could be
dnl a shell script that provides what python-config.py provides for
dnl --ldflags, --includes, --exec-prefix.
dnl python-executable -
dnl Find python-executable in $PATH, and then handle the same as
dnl /path/to/python/executable.
dnl
dnl If a python program is specified, it is used to run python-config.py and
dnl is passed --ldflags, --includes, --exec-prefix.
AC_ARG_WITH(python,
AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
[], [with_python=auto])
AC_MSG_CHECKING([whether to use python])
AC_MSG_RESULT([$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
[[\\/]]* | ?:[[\\/]]*)
if test -d ${with_python}; then
# Assume the python binary is ${with_python}/bin/python.
python_prog="${with_python}/bin/python"
python_prefix=
# If python does not exit ${with_python}/bin, then try in
# ${with_python}. On Windows/MinGW, this is where the Python
# executable is.
if test ! -x "${python_prog}"; then
python_prog="${with_python}/python"
python_prefix=
fi
if test ! -x "${python_prog}"; then
# Fall back to gdb 7.0/7.1 behaviour.
python_prog=missing
python_prefix=${with_python}
fi
elif test -x "${with_python}"; then
# While we can't run python compiled for $host (unless host == build),
# the user could write a script that provides the needed information,
# so we support that.
python_prog=${with_python}
python_prefix=
else
AC_ERROR(invalid value for --with-python)
fi
;;
*/*)
# Disallow --with-python=foo/bar.
AC_ERROR(invalid value for --with-python)
;;
*)
# The user has either specified auto, yes, or the name of the python
# program assumed to be in $PATH.
python_prefix=
case "${with_python}" in
yes | auto)
if test ${build} = ${host}; then
AC_PATH_PROG(python_prog_path, python, missing)
if test "${python_prog_path}" = missing; then
python_prog=missing
else
python_prog=${python_prog_path}
fi
else
# Not much we can do except assume the cross-compiler will find the
# right files.
python_prog=missing
fi
;;
*)
# While we can't run python compiled for $host (unless host == build),
# the user could write a script that provides the needed information,
# so we support that.
python_prog="${with_python}"
AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
if test "${python_prog_path}" = missing; then
AC_ERROR(unable to find python program ${python_prog})
fi
;;
esac
esac
if test "${python_prog}" != missing; then
# We have a python program to use, but it may be too old.
# Don't flag an error for --with-python=auto (the default).
have_python_config=yes
python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
if test $? != 0; then
have_python_config=failed
if test "${with_python}" != auto; then
AC_ERROR(failure running python-config --includes)
fi
fi
python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
if test $? != 0; then
have_python_config=failed
if test "${with_python}" != auto; then
AC_ERROR(failure running python-config --ldflags)
fi
fi
python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
if test $? != 0; then
have_python_config=failed
if test "${with_python}" != auto; then
AC_ERROR(failure running python-config --exec-prefix)
fi
fi
else
# We do not have a python executable we can use to determine where
# to find the Python headers and libs. We cannot guess the include
# path from the python_prefix either, because that include path
# depends on the Python version. So, there is nothing much we can
# do except assume that the compiler will be able to find those files.
python_includes=
python_libs=
have_python_config=no
fi
# If we have python-config, only try the configuration it provides.
# Otherwise fallback on the old way of trying different versions of
# python in turn.
have_libpython=no
if test "${have_python_config}" = yes; then
# Determine the Python version by extracting "-lpython<version>"
# part of the python_libs. <version> is usually X.Y with X and Y
# being decimal numbers, but can also be XY (seen on Windows).
#
# The extraction is performed using sed with a regular expression.
# Initially, the regexp used was using the '?' quantifier to make
# the dot in the version number optional. Unfortunately, this
# does not work with non-GNU versions of sed because, because of
# what looks like a limitation (the '?' quantifier does not work
# with back-references). We work around this limitation by using
# the '*' quantifier instead. It means that, in theory, we might
# match unexpected version strings such as "-lpython2..7", but
# this seems unlikely in practice. And even if that happens,
# an error will be triggered later on, when checking that version
# number.
python_version=`echo " ${python_libs} " \
| sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
case "${python_version}" in
python*)
AC_TRY_LIBPYTHON(${python_version}, have_libpython,
${python_includes}, ${python_libs})
;;
*)
AC_MSG_ERROR([unable to determine python version from ${python_libs}])
;;
esac
elif test "${have_python_config}" != failed; then
if test "${have_libpython}" = no; then
AC_TRY_LIBPYTHON(python2.7, have_libpython,
${python_includes}, "${python_libs} -lpython2.7")
fi
if test "${have_libpython}" = no; then
AC_TRY_LIBPYTHON(python2.6, have_libpython,
${python_includes}, "${python_libs} -lpython2.6")
fi
if test ${have_libpython} = no; then
AC_TRY_LIBPYTHON(python2.5, have_libpython,
${python_includes}, "${python_libs} -lpython2.5")
fi
if test ${have_libpython} = no; then
AC_TRY_LIBPYTHON(python2.4, have_libpython,
${python_includes}, "${python_libs} -lpython2.4")
fi
fi
if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
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 ${with_python}])
;;
esac
else
if test -n "${python_prefix}"; then
AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
[Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
fi
fi
fi
if test "${have_libpython}" != no; 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="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
CONFIG_INSTALL="$CONFIG_INSTALL install-python"
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(${PYTHON_CFLAGS})
fi
# On x64 Windows, Python's include headers, and pyconfig.h in
# particular, rely on MS_WIN64 macro to detect that it's a 64bit
# version of Windows. Unfortunately, MS_WIN64 is only defined if
# _MSC_VER, a Microsoft-specific macro, is defined. So, when
# building on x64 Windows with GCC, we define MS_WIN64 ourselves.
# The issue was reported to the Python community, but still isn't
# solved as of 2012-10-02 (http://bugs.python.org/issue4709).
case "$gdb_host" in
mingw64)
if test "${GCC}" = yes; then
CPPFLAGS="$CPPFLAGS -DMS_WIN64"