1 dnl Autoconf configure script for GDB, the GNU debugger.
2 dnl Copyright (C) 1995-2013 Free Software Foundation, Inc.
4 dnl This file is part of GDB.
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.
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.
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/>.
19 dnl Process this file with autoconf to produce a configure script.
23 AC_CONFIG_HEADER(config.h:config.in)
26 # Set the 'development' global.
27 . $srcdir/development.sh
30 AC_USE_SYSTEM_EXTENSIONS
38 # Dependency checking.
40 ZW_PROG_COMPILER_DEPENDENCIES([CC])
42 # Check for the 'make' the user wants to use.
43 AC_CHECK_PROGS(MAKE, make)
45 case "`$MAKE --version 2>&1 | sed 1q`" in
50 AM_CONDITIONAL(GMAKE, test "$MAKE_IS_GNU" = yes)
53 # Configure gnulib. We need to build gnulib under some other
54 # directory not "gnulib", to avoid the problem of both GDB and
55 # GDBserver wanting to build it in the same directory, when building
57 ACX_CONFIGURE_DIR(["gnulib"], ["build-gnulib"])
59 dnl List of object files and targets accumulated by configure.
71 dnl Set up for gettext.
72 ZW_GNU_GETTEXT_SISTER_DIR
74 localedir='${datadir}/locale'
77 if test x"$USE_NLS" = xyes; then
78 CONFIG_ALL="$CONFIG_ALL all-po"
79 CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
80 CONFIG_INSTALL="$CONFIG_INSTALL install-po"
81 CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
84 GNULIB=build-gnulib/import
86 # For Makefile dependencies.
88 if test x"$STDINT_H" != x; then
89 GNULIB_STDINT_H=$GNULIB/$STDINT_H
91 AC_SUBST(GNULIB_STDINT_H)
94 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
97 # We never need to detect it in this sub-configure.
98 # But preserve it for config.status --recheck.
100 [Parent configure detects if it is of sufficient version.])
101 AC_ARG_VAR(MAKEINFOFLAGS,
102 [Parameters for MAKEINFO.])
104 MAKEINFO_EXTRA_FLAGS=""
105 AC_CACHE_CHECK([whether $MAKEINFO supports @click], gdb_cv_have_makeinfo_click,
106 [echo '@clicksequence{a @click{} b}' >conftest.texinfo
107 if eval "$MAKEINFO conftest.texinfo >&5 2>&5"; then
108 gdb_cv_have_makeinfo_click=yes
110 gdb_cv_have_makeinfo_click=no
112 if test x"$gdb_cv_have_makeinfo_click" = xyes; then
113 MAKEINFO_EXTRA_FLAGS="$MAKEINFO_EXTRA_FLAGS -DHAVE_MAKEINFO_CLICK"
115 AC_SUBST(MAKEINFO_EXTRA_FLAGS)
117 GDB_AC_WITH_DIR(DEBUGDIR, separate-debug-dir,
118 [look for global separate debug info in this path @<:@LIBDIR/debug@:>@],
121 # We can't pass paths as command line arguments.
122 # Mingw32 tries to be clever and will convert the paths for us.
123 # For example -DBINDIR="/usr/local/bin" passed on the command line may get
124 # converted to -DBINDIR="E:/msys/mingw32/msys/1.0/local/bin".
125 # This breaks GDB's relocatable path conversions since paths passed in
126 # config.h would not get so translated, the path prefixes no longer match.
127 AC_DEFINE_DIR(BINDIR, bindir, [Directory of programs.])
129 # GDB's datadir relocation
131 GDB_AC_WITH_DIR(GDB_DATADIR, gdb-datadir,
132 [look for global separate data files in this path @<:@DATADIR/gdb@:>@],
135 AC_ARG_WITH(relocated-sources,
136 AS_HELP_STRING([--with-relocated-sources=PATH], [automatically relocate this path for source files]),
137 [reloc_srcdir="${withval}"
138 AC_DEFINE_DIR(RELOC_SRCDIR, reloc_srcdir,
139 [Relocated directory for source files. ])
142 AC_MSG_CHECKING([for default auto-load directory])
143 AC_ARG_WITH(auto-load-dir,
144 AS_HELP_STRING([--with-auto-load-dir=PATH],
145 [directories from which to load auto-loaded scripts @<:@$debugdir:$datadir/auto-load@:>@]),,
146 [with_auto_load_dir='$debugdir:$datadir/auto-load'])
147 escape_dir=`echo $with_auto_load_dir | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
148 AC_DEFINE_DIR(AUTO_LOAD_DIR, escape_dir,
149 [Directories from which to load auto-loaded scripts.])
150 AC_MSG_RESULT([$with_auto_load_dir])
152 AC_MSG_CHECKING([for default auto-load safe-path])
153 AC_ARG_WITH(auto-load-safe-path,
154 AS_HELP_STRING([--with-auto-load-safe-path=PATH],
155 [directories safe to hold auto-loaded files @<:@--with-auto-load-dir@:>@])
156 AS_HELP_STRING([--without-auto-load-safe-path],
157 [do not restrict auto-loaded files locations]),
158 [if test "$with_auto_load_safe_path" = "no"; then
159 with_auto_load_safe_path="/"
161 [with_auto_load_safe_path="$with_auto_load_dir"])
162 escape_dir=`echo $with_auto_load_safe_path | sed 's/[[$]]\(datadir\|debugdir\)\>/\\\\\\\\\\\\&/g'`
163 AC_DEFINE_DIR(AUTO_LOAD_SAFE_PATH, escape_dir,
164 [Directories safe to hold auto-loaded files.])
165 AC_MSG_RESULT([$with_auto_load_safe_path])
167 AC_CONFIG_SUBDIRS(testsuite)
169 # Check whether to support alternative target configurations
170 AC_ARG_ENABLE(targets,
171 AS_HELP_STRING([--enable-targets=TARGETS], [alternative target configurations]),
172 [case "${enableval}" in
173 yes | "") AC_ERROR(enable-targets option must specify target names or 'all')
175 no) enable_targets= ;;
176 *) enable_targets=$enableval ;;
179 # Check whether to enable 64-bit support on 32-bit hosts
180 AC_ARG_ENABLE(64-bit-bfd,
181 AS_HELP_STRING([--enable-64-bit-bfd], [64-bit support (on hosts with narrower word sizes)]),
182 [case "${enableval}" in
185 *) AC_MSG_ERROR(bad value ${enableval} for 64-bit-bfd option) ;;
186 esac],[want64=false])dnl
188 # Provide defaults for some variables set by the per-host and per-target
190 gdb_host_obs=posix-hdep.o
192 if test "${target}" = "${host}"; then
198 . $srcdir/configure.host
200 # Accumulate some settings from configure.tgt over all enabled targets
204 HAVE_NATIVE_GCORE_TARGET=
206 for targ_alias in `echo $target_alias $enable_targets | sed 's/,/ /g'`
208 if test "$targ_alias" = "all"; then
211 # Canonicalize the secondary target names.
212 result=`$ac_config_sub $targ_alias 2>/dev/null`
213 if test -n "$result"; then
219 . ${srcdir}/configure.tgt
221 AS_IF([test -z "${gdb_target_obs}"],
222 [AC_MSG_ERROR([configuration ${targ} is unsupported.])])
224 # Target-specific object files
225 for i in ${gdb_target_obs}; do
226 case " $TARGET_OBS " in
229 TARGET_OBS="$TARGET_OBS ${i}"
234 # Check whether this target needs 64-bit CORE_ADDR
235 if test x${want64} = xfalse; then
236 . ${srcdir}/../bfd/config.bfd
239 # Check whether this target is native and supports gcore.
240 if test $gdb_native = yes -a "$targ_alias" = "$target_alias" \
241 && $gdb_have_gcore; then
242 HAVE_NATIVE_GCORE_TARGET=1
247 if test x${all_targets} = xtrue; then
249 # We want all 64-bit targets if we either:
250 # - run on a 64-bit host or
251 # - already require 64-bit support for some other target or
252 # - the --enable-64-bit-bfd option was supplied
253 # Otherwise we only support all 32-bit targets.
255 # NOTE: This test must be in sync with the corresponding
258 if test x${want64} = xfalse; then
259 AC_CHECK_SIZEOF(long)
260 if test "x${ac_cv_sizeof_long}" = "x8"; then
264 if test x${want64} = xtrue; then
265 TARGET_OBS='$(ALL_TARGET_OBS) $(ALL_64_TARGET_OBS)'
267 TARGET_OBS='$(ALL_TARGET_OBS)'
272 AC_SUBST(HAVE_NATIVE_GCORE_TARGET)
274 # For other settings, only the main target counts.
278 targ=$target; . ${srcdir}/configure.tgt
280 # Fetch the default architecture and default target vector from BFD.
281 targ=$target; . $srcdir/../bfd/config.bfd
283 # We only want the first architecture, so strip off the others if
284 # there is more than one.
285 targ_archs=`echo $targ_archs | sed 's/ .*//'`
287 if test "x$targ_archs" != x; then
288 AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
289 [Define to BFD's default architecture. ])
291 if test "x$targ_defvec" != x; then
292 AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
293 [Define to BFD's default target vector. ])
296 # The CLI cannot be disabled yet, but may be in the future.
299 AC_ARG_ENABLE(gdbcli,
300 AS_HELP_STRING([--disable-gdbcli], [disable command-line interface (CLI)]),
305 AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
307 AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
310 if test x"$enable_gdbcli" = xyes; then
311 if test -d $srcdir/cli; then
312 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
313 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
314 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
315 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
321 AS_HELP_STRING([--disable-gdbmi], [disable machine-interface (MI)]),
326 AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
329 if test x"$enable_gdbmi" = xyes; then
330 if test -d $srcdir/mi; then
331 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
332 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
333 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
334 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
340 AS_HELP_STRING([--enable-tui], [enable full-screen terminal user interface (TUI)]),
345 AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
346 esac],enable_tui=auto)
350 AS_HELP_STRING([--enable-gdbtk], [enable gdbtk graphical user interface (GUI)]),
355 AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
357 [if test -d $srcdir/gdbtk; then
362 # We unconditionally disable gdbtk tests on selected platforms.
365 AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
369 # Libunwind support for ia64.
371 AC_ARG_WITH(libunwind-ia64,
372 AS_HELP_STRING([--with-libunwind-ia64],
373 [use libunwind frame unwinding for ia64 targets]),,
374 [with_libunwind_ia64=auto])
376 # Backward compatibility option.
377 if test "${with_libunwind+set}" = set; then
378 if test x"$with_libunwind_ia64" != xauto; then
380 [option --with-libunwind is deprecated, use --with-libunwind-ia64])
382 AC_MSG_WARN([option --with-libunwind is deprecated, use --with-libunwind-ia64])
383 with_libunwind_ia64="$with_libunwind"
386 case "$with_libunwind_ia64" in
390 AC_CHECK_HEADERS(libunwind-ia64.h)
391 with_libunwind_ia64=$ac_cv_header_libunwind_ia64_h
395 [bad value $with_libunwind_ia64 for GDB --with-libunwind-ia64 option])
399 if test x"$with_libunwind_ia64" = xyes; then
400 AC_CHECK_HEADERS(libunwind-ia64.h)
401 if test x"$ac_cv_header_libunwind_ia64_h" != xyes; then
402 AC_MSG_ERROR([GDB option --with-libunwind-ia64 requires libunwind-ia64.h])
404 CONFIG_OBS="$CONFIG_OBS ia64-libunwind-tdep.o"
405 CONFIG_DEPS="$CONFIG_DEPS ia64-libunwind-tdep.o"
406 CONFIG_SRCS="$CONFIG_SRCS ia64-libunwind-tdep.c"
410 AC_ARG_WITH(curses, AS_HELP_STRING([--with-curses], [use the curses library instead of the termcap library]), opt_curses=$withval)
413 if test "$opt_curses" = "yes"; then
418 AC_ARG_ENABLE(profiling,
419 AS_HELP_STRING([--enable-profiling], [enable profiling of GDB]),
424 AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
426 [enable_profiling=no])
428 AC_CHECK_FUNCS(monstartup _mcleanup)
429 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
434 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
435 if test $ac_cv_var__etext = yes; then
436 AC_DEFINE(HAVE__ETEXT, 1,
437 [Define to 1 if your system has the _etext variable. ])
439 AC_CACHE_CHECK([for etext], ac_cv_var_etext,
444 [free (&etext);], ac_cv_var_etext=yes, ac_cv_var_etext=no)])
445 if test $ac_cv_var_etext = yes; then
446 AC_DEFINE(HAVE_ETEXT, 1,
447 [Define to 1 if your system has the etext variable. ])
449 if test "$enable_profiling" = yes ; then
450 if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
451 AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
455 CFLAGS="$CFLAGS $PROFILE_CFLAGS"
457 AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
458 [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
459 ac_cv_cc_supports_pg=no)])
461 if test $ac_cv_cc_supports_pg = no; then
462 AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
468 ACX_PKGVERSION([GDB])
469 ACX_BUGURL([http://www.gnu.org/software/gdb/bugs/])
470 AC_DEFINE_UNQUOTED([PKGVERSION], ["$PKGVERSION"], [Additional package description])
471 AC_DEFINE_UNQUOTED([REPORT_BUGS_TO], ["$REPORT_BUGS_TO"], [Bug reporting address])
473 # --------------------- #
474 # Checks for programs. #
475 # --------------------- #
483 AC_CHECK_TOOL(AR, ar)
484 AC_CHECK_TOOL(DLLTOOL, dlltool)
485 AC_CHECK_TOOL(WINDRES, windres)
489 # Needed for GNU Hurd hosts.
490 AC_CHECK_TOOL(MIG, mig)
491 if test x"$MIG" = x; then
492 AC_MSG_ERROR([MIG not found but required for $host hosts])
497 # ---------------------- #
498 # Checks for libraries. #
499 # ---------------------- #
501 # We might need to link with -lm; most simulators need it.
502 AC_CHECK_LIB(m, main)
504 # We need to link with -lw to get `wctype' on Solaris before Solaris
505 # 2.6. Solaris 2.6 and beyond have this function in libc, and have a
506 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
507 # is known to have this problem). Therefore we avoid libw if we can.
508 AC_CHECK_FUNC(wctype, [],
509 [AC_CHECK_LIB(w, wctype)])
511 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
512 AC_SEARCH_LIBS(gethostbyname, nsl)
514 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
515 AC_SEARCH_LIBS(socketpair, socket)
517 # Link in zlib if we can. This allows us to read compressed debug sections.
520 # On HP/UX we may need libxpdl for dlgetmodinfo (used by solib-pa64.c).
521 AC_SEARCH_LIBS(dlgetmodinfo, [dl xpdl])
525 # GDB may fork/exec the iconv program to get the list of supported character
526 # sets. Allow the user to specify where to find it.
527 # There are several factors affecting the choice of option name:
528 # - There is already --with-libiconv-prefix but we can't use it, it specifies
529 # the build-time location of libiconv files.
530 # - The program we need to find is iconv, which comes with glibc. The user
531 # doesn't necessarily have libiconv installed. Therefore naming this
532 # --with-libiconv-foo feels wrong.
533 # - We want the path to be relocatable, but GDB_AC_DEFINE_RELOCATABLE is
534 # defined to work on directories not files (though it really doesn't know
536 # - Calling this --with-iconv-prefix is perceived to cause too much confusion
537 # with --with-libiconv-prefix.
538 # Putting these together is why the option name is --with-iconv-bin.
540 AC_ARG_WITH(iconv-bin,
541 AS_HELP_STRING([--with-iconv-bin=PATH], [specify where to find the iconv program]),
542 [iconv_bin="${withval}"
543 AC_DEFINE_UNQUOTED([ICONV_BIN], ["${iconv_bin}"],
544 [Path of directory of iconv program.])
545 GDB_AC_DEFINE_RELOCATABLE(ICONV_BIN, iconv, ${iconv_bin})
548 # On alpha-osf, it appears that libtermcap and libcurses are not compatible.
549 # There is a very specific comment in /usr/include/curses.h explaining that
550 # termcap routines built into libcurses must not be used.
552 # The symptoms we observed so far is GDB unexpectedly changing
553 # the terminal settings when tgetent is called - this is particularly
554 # visible as the output is missing carriage returns, and so rapidly
555 # becomes very hard to read.
557 # The readline configure script has already decided that libtermcap
558 # was enough for its purposes, and so decided to build readline using
559 # libtermcap. Since the TUI mode requires curses, building GDB with
560 # TUI enabled results in both libraries to be used at the same time,
561 # which is not allowed. This basically means that GDB with TUI is
562 # broken on alpha-osf.
566 if test x"$enable_tui" = xyes; then
567 AC_MSG_ERROR([Building GDB with TUI mode is not supported on this host])
569 if test x"$enable_tui" = xauto; then
575 # For the TUI, we need enhanced curses functionality.
576 if test x"$enable_tui" != xno; then
581 if test x"$prefer_curses" = xyes; then
582 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
583 # curses library because the latter might not provide all the
584 # functionality we need. However, this leads to problems on systems
585 # where the linker searches /usr/local/lib, but the compiler doesn't
586 # search /usr/local/include, if ncurses is installed in /usr/local. A
587 # default installation of ncurses on alpha*-dec-osf* will lead to such
589 AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
591 if test "$ac_cv_search_waddstr" != no; then
596 # Check whether we should enable the TUI, but only do so if we really
598 if test x"$enable_tui" != xno; then
599 if test -d $srcdir/tui; then
600 if test "$curses_found" != no; then
601 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
602 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
603 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
604 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
606 if test x"$enable_tui" = xyes; then
607 AC_MSG_ERROR([no enhanced curses library found; disable TUI])
609 AC_MSG_WARN([no enhanced curses library found; disabling TUI])
615 # Since GDB uses Readline, we need termcap functionality. In many
616 # cases this will be provided by the curses library, but some systems
617 # have a seperate termcap library, or no curses library at all.
621 if test -d $srcdir/libtermcap; then
622 LIBS="../libtermcap/libtermcap.a $LIBS"
623 ac_cv_search_tgetent="../libtermcap/libtermcap.a"
626 ac_cv_search_tgetent="none required"
629 ac_cv_search_tgetent="none required"
630 CONFIG_OBS="$CONFIG_OBS windows-termcap.o"
634 # These are the libraries checked by Readline.
635 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
637 if test "$ac_cv_search_tgetent" = no; then
638 AC_MSG_ERROR([no termcap library found])
641 AC_ARG_WITH([system-readline],
642 [AS_HELP_STRING([--with-system-readline],
643 [use installed readline library])])
645 if test "$with_system_readline" = yes; then
649 READLINE_TEXI_INCFLAG=
651 READLINE='$(READLINE_DIR)/libreadline.a'
652 READLINE_DEPS='$(READLINE)'
653 READLINE_CFLAGS='-I$(READLINE_SRC)/..'
654 READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
657 AC_SUBST(READLINE_DEPS)
658 AC_SUBST(READLINE_CFLAGS)
659 AC_SUBST(READLINE_TEXI_INCFLAG)
661 # Generate jit-reader.h
663 # This is typedeffed to GDB_CORE_ADDR in jit-reader.h
666 AC_CHECK_SIZEOF(unsigned long long)
667 AC_CHECK_SIZEOF(unsigned long)
668 AC_CHECK_SIZEOF(unsigned __int128)
670 if test "x${ac_cv_sizeof_unsigned_long}" = "x8"; then
671 TARGET_PTR="unsigned long"
672 elif test "x${ac_cv_sizeof_unsigned_long_long}" = "x8"; then
673 TARGET_PTR="unsigned long long"
674 elif test "x${ac_cv_sizeof_unsigned___int128}" = "x16"; then
675 TARGET_PTR="unsigned __int128"
677 TARGET_PTR="unsigned long"
681 AC_CONFIG_FILES([jit-reader.h:jit-reader.in])
683 AC_SEARCH_LIBS(dlopen, dl)
685 GDB_AC_WITH_DIR([JIT_READER_DIR], [jit-reader-dir],
686 [directory to load the JIT readers from],
690 AS_HELP_STRING([--with-expat], [include expat support (auto/yes/no)]),
691 [], [with_expat=auto])
692 AC_MSG_CHECKING([whether to use expat])
693 AC_MSG_RESULT([$with_expat])
695 if test "${with_expat}" = no; then
696 AC_MSG_WARN([expat support disabled; some features may be unavailable.])
699 AC_LIB_HAVE_LINKFLAGS([expat], [], [#include "expat.h"],
700 [XML_Parser p = XML_ParserCreate (0);])
701 if test "$HAVE_LIBEXPAT" != yes; then
702 if test "$with_expat" = yes; then
703 AC_MSG_ERROR([expat is missing or unusable])
705 AC_MSG_WARN([expat is missing or unusable; some features may be unavailable.])
709 LIBS="$LIBS $LIBEXPAT"
710 AC_CHECK_FUNCS(XML_StopParser)
715 dnl Utility to simplify finding libpython.
717 dnl $2 = the shell variable to assign the result to
718 dnl If libpython is found we store $version here.
719 dnl $3 = additional flags to add to CPPFLAGS
720 dnl $4 = additional flags to add to LIBS
722 AC_DEFUN([AC_TRY_LIBPYTHON],
725 define([have_libpython_var],$2)
728 AC_MSG_CHECKING([for ${version}])
729 save_CPPFLAGS=$CPPFLAGS
731 CPPFLAGS="$CPPFLAGS $new_CPPFLAGS"
732 LIBS="$LIBS $new_LIBS"
733 found_usable_python=no
734 AC_LINK_IFELSE(AC_LANG_PROGRAM([[#include "Python.h"]],
735 [[Py_Initialize ();]]),
736 [have_libpython_var=${version}
737 found_usable_python=yes
738 PYTHON_CPPFLAGS=$new_CPPFLAGS
739 PYTHON_LIBS=$new_LIBS])
740 CPPFLAGS=$save_CPPFLAGS
742 AC_MSG_RESULT([${found_usable_python}])
745 dnl There are several different values for --with-python:
747 dnl no - Don't include python support.
748 dnl yes - Include python support, error if it's missing.
749 dnl If we find python in $PATH, use it to fetch configure options,
750 dnl otherwise assume the compiler can find it with no help from us.
751 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
752 dnl auto - Same as "yes", but if python is missing from the system,
753 dnl fall back to "no".
754 dnl /path/to/python/exec-prefix -
755 dnl Use the python located in this directory.
756 dnl If /path/to/python/exec-prefix/bin/python exists, use it to find
757 dnl the compilation parameters. Otherwise use
758 dnl -I/path/to/python/exec-prefix/include,
759 dnl -L/path/to/python/exec-prefix/lib.
760 dnl Python 2.7, 2.6, 2.5, and then 2.4 are tried in turn.
761 dnl NOTE: This case is historical. It is what was done for 7.0/7.1
762 dnl but is deprecated.
763 dnl /path/to/python/executable -
764 dnl Run python-config.py with this version of python to fetch the
765 dnl compilation parameters.
766 dnl NOTE: This needn't be the real python executable.
767 dnl In a cross-compilation scenario (build != host), this could be
768 dnl a shell script that provides what python-config.py provides for
769 dnl --ldflags, --includes, --exec-prefix.
770 dnl python-executable -
771 dnl Find python-executable in $PATH, and then handle the same as
772 dnl /path/to/python/executable.
774 dnl If a python program is specified, it is used to run python-config.py and
775 dnl is passed --ldflags, --includes, --exec-prefix.
778 AS_HELP_STRING([--with-python@<:@=PYTHON@:>@], [include python support (auto/yes/no/<python-program>)]),
779 [], [with_python=auto])
780 AC_MSG_CHECKING([whether to use python])
781 AC_MSG_RESULT([$with_python])
783 if test "${with_python}" = no; then
784 AC_MSG_WARN([python support disabled; some features may be unavailable.])
787 case "${with_python}" in
788 [[\\/]]* | ?:[[\\/]]*)
789 if test -d ${with_python}; then
790 # Assume the python binary is ${with_python}/bin/python.
791 python_prog="${with_python}/bin/python"
793 # If python does not exit ${with_python}/bin, then try in
794 # ${with_python}. On Windows/MinGW, this is where the Python
796 if test ! -x "${python_prog}"; then
797 python_prog="${with_python}/python"
800 if test ! -x "${python_prog}"; then
801 # Fall back to gdb 7.0/7.1 behaviour.
803 python_prefix=${with_python}
805 elif test -x "${with_python}"; then
806 # While we can't run python compiled for $host (unless host == build),
807 # the user could write a script that provides the needed information,
808 # so we support that.
809 python_prog=${with_python}
812 AC_ERROR(invalid value for --with-python)
816 # Disallow --with-python=foo/bar.
817 AC_ERROR(invalid value for --with-python)
820 # The user has either specified auto, yes, or the name of the python
821 # program assumed to be in $PATH.
823 case "${with_python}" in
825 if test ${build} = ${host}; then
826 AC_PATH_PROG(python_prog_path, python, missing)
827 if test "${python_prog_path}" = missing; then
830 python_prog=${python_prog_path}
833 # Not much we can do except assume the cross-compiler will find the
839 # While we can't run python compiled for $host (unless host == build),
840 # the user could write a script that provides the needed information,
841 # so we support that.
842 python_prog="${with_python}"
843 AC_PATH_PROG(python_prog_path, ${python_prog}, missing)
844 if test "${python_prog_path}" = missing; then
845 AC_ERROR(unable to find python program ${python_prog})
851 if test "${python_prog}" != missing; then
852 # We have a python program to use, but it may be too old.
853 # Don't flag an error for --with-python=auto (the default).
854 have_python_config=yes
855 python_includes=`${python_prog} ${srcdir}/python/python-config.py --includes`
856 if test $? != 0; then
857 have_python_config=failed
858 if test "${with_python}" != auto; then
859 AC_ERROR(failure running python-config --includes)
862 python_libs=`${python_prog} ${srcdir}/python/python-config.py --ldflags`
863 if test $? != 0; then
864 have_python_config=failed
865 if test "${with_python}" != auto; then
866 AC_ERROR(failure running python-config --ldflags)
869 python_prefix=`${python_prog} ${srcdir}/python/python-config.py --exec-prefix`
870 if test $? != 0; then
871 have_python_config=failed
872 if test "${with_python}" != auto; then
873 AC_ERROR(failure running python-config --exec-prefix)
877 # We do not have a python executable we can use to determine where
878 # to find the Python headers and libs. We cannot guess the include
879 # path from the python_prefix either, because that include path
880 # depends on the Python version. So, there is nothing much we can
881 # do except assume that the compiler will be able to find those files.
884 have_python_config=no
887 # If we have python-config, only try the configuration it provides.
888 # Otherwise fallback on the old way of trying different versions of
892 if test "${have_python_config}" = yes; then
893 # Determine the Python version by extracting "-lpython<version>"
894 # part of the python_libs. <version> is usually X.Y with X and Y
895 # being decimal numbers, but can also be XY (seen on Windows).
897 # The extraction is performed using sed with a regular expression.
898 # Initially, the regexp used was using the '?' quantifier to make
899 # the dot in the version number optional. Unfortunately, this
900 # does not work with non-GNU versions of sed because, because of
901 # what looks like a limitation (the '?' quantifier does not work
902 # with back-references). We work around this limitation by using
903 # the '*' quantifier instead. It means that, in theory, we might
904 # match unexpected version strings such as "-lpython2..7", but
905 # this seems unlikely in practice. And even if that happens,
906 # an error will be triggered later on, when checking that version
908 python_version=`echo " ${python_libs} " \
909 | sed -e 's,^.* -l\(python[[0-9]]*[[.]]*[[0-9]]*\).*$,\1,'`
910 case "${python_version}" in
912 AC_TRY_LIBPYTHON(${python_version}, have_libpython,
913 ${python_includes}, ${python_libs})
916 AC_MSG_ERROR([unable to determine python version from ${python_libs}])
919 elif test "${have_python_config}" != failed; then
920 if test "${have_libpython}" = no; then
921 AC_TRY_LIBPYTHON(python2.7, have_libpython,
922 ${python_includes}, "${python_libs} -lpython2.7")
924 if test "${have_libpython}" = no; then
925 AC_TRY_LIBPYTHON(python2.6, have_libpython,
926 ${python_includes}, "${python_libs} -lpython2.6")
928 if test ${have_libpython} = no; then
929 AC_TRY_LIBPYTHON(python2.5, have_libpython,
930 ${python_includes}, "${python_libs} -lpython2.5")
932 if test ${have_libpython} = no; then
933 AC_TRY_LIBPYTHON(python2.4, have_libpython,
934 ${python_includes}, "${python_libs} -lpython2.4")
937 if test "${have_libpython}" = python2.7 -o "${have_libpython}" = python27; then
938 AC_DEFINE(HAVE_LIBPYTHON2_7, 1, [Define if Python 2.7 is being used.])
939 elif test "${have_libpython}" = python2.6 -o "${have_libpython}" = python26; then
940 AC_DEFINE(HAVE_LIBPYTHON2_6, 1, [Define if Python 2.6 is being used.])
941 elif test "${have_libpython}" = python2.5 -o "${have_libpython}" = python25; then
942 AC_DEFINE(HAVE_LIBPYTHON2_5, 1, [Define if Python 2.5 is being used.])
943 elif test "${have_libpython}" = python2.4 -o "${have_libpython}" = python24; then
944 AC_DEFINE(HAVE_LIBPYTHON2_4, 1, [Define if Python 2.4 is being used.])
947 if test "${have_libpython}" = no; then
948 case "${with_python}" in
950 AC_MSG_ERROR([python is missing or unusable])
953 AC_MSG_WARN([python is missing or unusable; some features may be unavailable.])
956 AC_MSG_ERROR([no usable python found at ${with_python}])
960 if test -n "${python_prefix}"; then
961 AC_DEFINE_UNQUOTED(WITH_PYTHON_PATH, "${python_prefix}",
962 [Define if --with-python provides a path, either directly or via python-config.py --exec-prefix.])
963 GDB_AC_DEFINE_RELOCATABLE(PYTHON_PATH, python, ${python_prefix})
968 if test "${have_libpython}" != no; then
969 AC_DEFINE(HAVE_PYTHON, 1, [Define if Python interpreter is being linked in.])
970 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_PYTHON_OBS)"
971 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_PYTHON_DEPS)"
972 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_PYTHON_SRCS)"
973 CONFIG_INSTALL="$CONFIG_INSTALL install-python"
974 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_PYTHON_CFLAGS)"
976 # Flags needed to compile Python code (taken from python-config --cflags).
977 # We cannot call python-config directly because it will output whatever was
978 # used when compiling the Python interpreter itself, including flags which
979 # would make the python-related objects be compiled differently from the
980 # rest of GDB (e.g., -O2 and -fPIC).
981 if test "${GCC}" = yes; then
982 tentative_python_cflags="-fno-strict-aliasing -DNDEBUG -fwrapv"
985 if test "x${tentative_python_cflags}" != x; then
986 AC_MSG_CHECKING(compiler flags for python code)
987 for flag in ${tentative_python_cflags}; do
988 # Check that the compiler accepts it
989 saved_CFLAGS="$CFLAGS"
990 CFLAGS="$CFLAGS $flag"
991 AC_TRY_COMPILE([],[],PYTHON_CFLAGS="${PYTHON_CFLAGS} $flag",)
992 CFLAGS="$saved_CFLAGS"
994 AC_MSG_RESULT(${PYTHON_CFLAGS})
997 # On IRIX, type siginfo is not defined. Instead, sys/siginfo.h provides:
999 # #define siginfo __siginfo
1001 # The problem is that including Python causes some XOPEN macros to be
1002 # unilaterally defined, and that in turn causes _SGIAPI to evaluate
1003 # to false. So, we work around this issue by defining siginfo ourself
1004 # though the command-line.
1006 # On x64 Windows, Python's include headers, and pyconfig.h in
1007 # particular, rely on MS_WIN64 macro to detect that it's a 64bit
1008 # version of Windows. Unfortunately, MS_WIN64 is only defined if
1009 # _MSC_VER, a Microsoft-specific macro, is defined. So, when
1010 # building on x64 Windows with GCC, we define MS_WIN64 ourselves.
1011 # The issue was reported to the Python community, but still isn't
1012 # solved as of 2012-10-02 (http://bugs.python.org/issue4709).
1015 irix*) if test "${GCC}" = yes; then
1016 CPPFLAGS="$CPPFLAGS -Dsiginfo=__siginfo"
1020 if test "${GCC}" = yes; then
1021 CPPFLAGS="$CPPFLAGS -DMS_WIN64"
1026 # Note that "python -m threading" cannot be used to check for
1027 # threading support due to a bug in Python 2.7.3
1028 # (http://bugs.python.org/issue15567).
1029 AC_MSG_CHECKING(whether python supports threads)
1030 saved_CPPFLAGS="${CPPFLAGS}"
1031 CPPFLAGS="${PYTHON_CPPFLAGS}"
1032 # Note that the test is reversed so that python_has_threads=yes on
1033 # unexpected failures.
1034 AC_PREPROC_IFELSE(AC_LANG_SOURCE([[
1039 ]]), [python_has_threads=no], [python_has_threads=yes])
1040 AC_MSG_RESULT(${python_has_threads})
1041 CPPFLAGS="${saved_CPPFLAGS}"
1043 # Even if Python support is not compiled in, we need to have these files
1045 CONFIG_OBS="$CONFIG_OBS python.o py-value.o py-prettyprint.o py-auto-load.o"
1046 CONFIG_SRCS="$CONFIG_SRCS python/python.c python/py-value.c \
1047 python/py-prettyprint.c python/py-auto-load.c"
1049 AC_SUBST(PYTHON_CFLAGS)
1050 AC_SUBST(PYTHON_CPPFLAGS)
1051 AC_SUBST(PYTHON_LIBS)
1053 # Enable -lmcheck by default (it provides cheap-enough memory mangling),
1054 # but turn it off if Python is enabled with threads, since -lmcheck is
1055 # not thread safe (http://sourceware.org/bugzilla/show_bug.cgi?id=9939),
1057 if test \( "${have_libpython}" = "no" -o "${python_has_threads}" = "no" \) \
1058 && $development; then
1059 libmcheck_default=yes
1061 libmcheck_default=no
1063 GDB_AC_LIBMCHECK(${libmcheck_default})
1065 if test "$ENABLE_LIBMCHECK" = "yes" \
1066 -a "${have_libpython}" != "no" \
1067 -a "${python_has_threads}" = "yes" ; then
1068 AC_MSG_WARN(--enable-libmcheck may lead to spurious crashes if threads are used in python)
1071 # ------------------------- #
1072 # Checks for header files. #
1073 # ------------------------- #
1077 # elf_hp.h is for HP/UX 64-bit shared library support.
1078 AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h sys/socket.h proc_service.h \
1079 thread_db.h signal.h stddef.h \
1080 stdlib.h string.h memory.h strings.h sys/fault.h \
1081 sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
1082 sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
1083 sys/reg.h sys/debugreg.h sys/select.h sys/syscall.h \
1084 sys/types.h sys/wait.h wait.h termios.h termio.h \
1085 sgtty.h unistd.h elf_hp.h locale.h \
1086 dlfcn.h sys/un.h linux/perf_event.h])
1087 AC_CHECK_HEADERS(sys/proc.h, [], [],
1088 [#if HAVE_SYS_PARAM_H
1089 # include <sys/param.h>
1092 AC_CHECK_HEADERS(sys/user.h, [], [],
1093 [#if HAVE_SYS_PARAM_H
1094 # include <sys/param.h>
1098 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
1099 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
1100 # think that we don't have <curses.h> if we're using GCC.
1103 if test "$GCC" = yes; then
1104 AC_DEFINE(_MSE_INT_H, 1,
1105 [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
1106 Solaris 2.[789] when using GCC. ])
1109 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h ncurses/term.h)
1110 AC_CHECK_HEADERS(term.h, [], [],
1112 # include <curses.h>
1116 # ------------------------- #
1117 # Checks for declarations. #
1118 # ------------------------- #
1120 AC_CHECK_DECLS([free, malloc, realloc, strerror, strstr, getopt,
1121 snprintf, vsnprintf])
1124 # ----------------------- #
1125 # Checks for structures. #
1126 # ----------------------- #
1128 AC_CHECK_MEMBERS([struct stat.st_blocks, struct stat.st_blksize])
1130 # ------------------ #
1131 # Checks for types. #
1132 # ------------------ #
1135 AC_CHECK_TYPES(socklen_t, [], [],
1136 [#include <sys/types.h>
1137 #include <sys/socket.h>
1140 # ------------------------------------- #
1141 # Checks for compiler characteristics. #
1142 # ------------------------------------- #
1148 # ------------------------------ #
1149 # Checks for library functions. #
1150 # ------------------------------ #
1155 AC_CHECK_FUNCS([canonicalize_file_name realpath getrusage getuid getgid \
1156 pipe poll pread pread64 pwrite readlink resize_term \
1157 sbrk setpgid setpgrp setsid \
1158 sigaction sigprocmask sigsetmask socketpair syscall \
1159 ttrace wborder wresize setlocale iconvlist libiconvlist btowc \
1160 setrlimit getrlimit posix_madvise waitpid lstat \
1161 fdwalk pipe2 ptrace64])
1165 # Check the return and argument types of ptrace. No canned test for
1166 # this, so roll our own.
1167 gdb_ptrace_headers='
1168 #if HAVE_SYS_TYPES_H
1169 # include <sys/types.h>
1171 #if HAVE_SYS_PTRACE_H
1172 # include <sys/ptrace.h>
1175 # include <unistd.h>
1178 # There is no point in checking if we don't have a prototype.
1179 AC_CHECK_DECLS(ptrace, [], [
1180 : ${gdb_cv_func_ptrace_ret='int'}
1181 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1182 ], $gdb_ptrace_headers)
1183 # Check return type. Varargs (used on GNU/Linux) conflict with the
1184 # empty argument list, so check for that explicitly.
1185 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
1186 AC_TRY_COMPILE($gdb_ptrace_headers,
1187 [extern long ptrace (enum __ptrace_request, ...);],
1188 gdb_cv_func_ptrace_ret='long',
1189 AC_TRY_COMPILE($gdb_ptrace_headers,
1190 [extern int ptrace ();],
1191 gdb_cv_func_ptrace_ret='int',
1192 gdb_cv_func_ptrace_ret='long')))
1193 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
1194 [Define as the return type of ptrace.])
1195 # Check argument types.
1196 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
1197 AC_TRY_COMPILE($gdb_ptrace_headers,
1198 [extern long ptrace (enum __ptrace_request, ...);],
1199 [gdb_cv_func_ptrace_args='int,int,long,long'],[
1200 for gdb_arg1 in 'int' 'long'; do
1201 for gdb_arg2 in 'pid_t' 'int' 'long'; do
1202 for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long' 'void *'; do
1203 for gdb_arg4 in 'int' 'long' 'void *'; do
1204 AC_TRY_COMPILE($gdb_ptrace_headers, [
1205 extern $gdb_cv_func_ptrace_ret
1206 ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
1207 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
1209 for gdb_arg5 in 'int *' 'int' 'long'; do
1210 AC_TRY_COMPILE($gdb_ptrace_headers, [
1211 extern $gdb_cv_func_ptrace_ret
1212 ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
1214 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
1221 # Provide a safe default value.
1222 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
1224 ac_save_IFS=$IFS; IFS=','
1225 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
1228 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
1229 [Define to the type of arg 3 for ptrace.])
1230 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG4, $[4],
1231 [Define to the type of arg 4 for ptrace.])
1232 if test -n "$[5]"; then
1233 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
1234 [Define to the type of arg 5 for ptrace.])
1237 dnl AC_FUNC_SETPGRP does not work when cross compiling
1238 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
1239 if test "$cross_compiling" = no; then
1242 AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
1246 if (setpgrp(1,1) == -1)
1250 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
1251 if test $ac_cv_func_setpgrp_void = yes; then
1252 AC_DEFINE(SETPGRP_VOID, 1)
1256 # Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't do
1257 # since sigsetjmp might only be defined as a macro.
1258 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
1261 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
1262 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
1263 if test $gdb_cv_func_sigsetjmp = yes; then
1264 AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
1267 # Assume we'll default to using the included libiberty regex.
1268 gdb_use_included_regex=yes
1270 # However, if the system regex is GNU regex, then default to *not*
1271 # using the included regex.
1274 [gdb_cv_have_gnu_regex],
1276 [#include <gnu-versions.h>],
1277 [#define REGEX_INTERFACE_VERSION 1
1278 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
1279 # error "Version mismatch"
1281 gdb_cv_have_gnu_regex=yes,
1282 gdb_cv_have_gnu_regex=no)])
1283 if test $gdb_cv_have_gnu_regex = yes; then
1284 gdb_use_included_regex=no
1287 AC_ARG_WITH(included-regex,
1288 AS_HELP_STRING([--without-included-regex], [don't use included regex; this is the default on systems with version 2 of the GNU C library (use with caution on other system)]),
1289 gdb_with_regex=$withval,
1290 gdb_with_regex=$gdb_use_included_regex)
1291 if test "$gdb_with_regex" = yes; then
1292 AC_DEFINE(USE_INCLUDED_REGEX, 1,
1293 [Define to 1 if the regex included in libiberty should be used.])
1296 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
1297 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
1298 [#include <sys/param.h>
1299 #include <sys/proc.h>
1302 # See if <sys/lwp.h> defines `struct lwp`.
1303 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
1304 [AC_TRY_COMPILE([#include <sys/param.h>
1305 #include <sys/lwp.h>], [struct lwp l;],
1306 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
1307 if test $gdb_cv_struct_lwp = yes; then
1308 AC_DEFINE(HAVE_STRUCT_LWP, 1,
1309 [Define to 1 if your system has struct lwp.])
1312 # See if <machine/reg.h> degines `struct reg'.
1313 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
1314 [AC_TRY_COMPILE([#include <sys/types.h>
1315 #include <machine/reg.h>], [struct reg r;],
1316 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
1317 if test $gdb_cv_struct_reg = yes; then
1318 AC_DEFINE(HAVE_STRUCT_REG, 1,
1319 [Define to 1 if your system has struct reg in <machine/reg.h>.])
1322 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
1323 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
1324 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
1325 [#include <machine/reg.h>])
1327 # See if <sys/user.h> supports the %fs_base and %gs_bas amd64 segment registers.
1328 # Older amd64 Linux's don't have the fs_base and gs_base members of
1329 # `struct user_regs_struct'.
1330 AC_CHECK_MEMBERS([struct user_regs_struct.fs_base, struct user_regs_struct.gs_base],
1331 [], [], [#include <sys/user.h>])
1333 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
1334 AC_MSG_CHECKING(for PTRACE_GETREGS)
1335 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
1336 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1338 [gdb_cv_have_ptrace_getregs=yes],
1339 [gdb_cv_have_ptrace_getregs=no])])
1340 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
1341 if test $gdb_cv_have_ptrace_getregs = yes; then
1342 AC_DEFINE(HAVE_PTRACE_GETREGS, 1,
1343 [Define if sys/ptrace.h defines the PTRACE_GETREGS request.])
1346 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
1347 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
1348 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
1349 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
1350 [PTRACE_GETFPXREGS;],
1351 [gdb_cv_have_ptrace_getfpxregs=yes],
1352 [gdb_cv_have_ptrace_getfpxregs=no])])
1353 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
1354 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
1355 AC_DEFINE(HAVE_PTRACE_GETFPXREGS, 1,
1356 [Define if sys/ptrace.h defines the PTRACE_GETFPXREGS request.])
1359 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
1360 AC_MSG_CHECKING(for PT_GETDBREGS)
1361 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
1362 [AC_TRY_COMPILE([#include <sys/types.h>
1363 #include <sys/ptrace.h>],
1365 [gdb_cv_have_pt_getdbregs=yes],
1366 [gdb_cv_have_pt_getdbregs=no])])
1367 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
1368 if test $gdb_cv_have_pt_getdbregs = yes; then
1369 AC_DEFINE(HAVE_PT_GETDBREGS, 1,
1370 [Define if sys/ptrace.h defines the PT_GETDBREGS request.])
1373 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
1374 AC_MSG_CHECKING(for PT_GETXMMREGS)
1375 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
1376 [AC_TRY_COMPILE([#include <sys/types.h>
1377 #include <sys/ptrace.h>],
1379 [gdb_cv_have_pt_getxmmregs=yes],
1380 [gdb_cv_have_pt_getxmmregs=no])])
1381 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
1382 if test $gdb_cv_have_pt_getxmmregs = yes; then
1383 AC_DEFINE(HAVE_PT_GETXMMREGS, 1,
1384 [Define if sys/ptrace.h defines the PT_GETXMMREGS request.])
1387 # Detect which type of /proc is in use, such as for Solaris.
1389 if test "${target}" = "${host}"; then
1391 *-*-sysv4.2* | *-*-sysv5* )
1392 AC_DEFINE(NEW_PROC_API, 1,
1393 [Define if you want to use new multi-fd /proc interface
1394 (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
1396 *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]]*)
1397 AC_DEFINE(NEW_PROC_API, 1,
1398 [Define if you want to use new multi-fd /proc interface
1399 (replaces HAVE_MULTIPLE_PROC_FDS as well as other macros).])
1402 # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
1403 AC_DEFINE([_KMEMUSER], 1,
1404 [Define to 1 so <sys/proc.h> gets a definition of anon_hdl. Works
1405 around a <sys/proc.h> problem on IRIX 5.])
1410 if test "$ac_cv_header_sys_procfs_h" = yes; then
1411 BFD_HAVE_SYS_PROCFS_TYPE(pstatus_t)
1412 BFD_HAVE_SYS_PROCFS_TYPE(prrun_t)
1413 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
1414 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
1415 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
1416 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
1417 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
1418 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset32_t)
1419 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
1420 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
1421 BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
1422 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
1423 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
1424 BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
1427 dnl Check for broken prfpregset_t type
1429 dnl For Linux/i386, glibc 2.1.3 was released with a bogus
1430 dnl prfpregset_t type (it's a typedef for the pointer to a struct
1431 dnl instead of the struct itself). We detect this here, and work
1432 dnl around it in gdb_proc_service.h.
1434 if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
1435 AC_MSG_CHECKING(whether prfpregset_t type is broken)
1436 AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
1437 [AC_TRY_RUN([#include <sys/procfs.h>
1440 if (sizeof (prfpregset_t) == sizeof (void *))
1444 gdb_cv_prfpregset_t_broken=no,
1445 gdb_cv_prfpregset_t_broken=yes,
1446 gdb_cv_prfpregset_t_broken=yes)])
1447 AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
1448 if test $gdb_cv_prfpregset_t_broken = yes; then
1449 AC_DEFINE(PRFPREGSET_T_BROKEN, 1,
1450 [Define if the prfpregset_t type is broken.])
1454 dnl Check for PIOCSET ioctl entry
1456 AC_MSG_CHECKING(for PIOCSET ioctl entry in sys/procfs.h)
1457 AC_CACHE_VAL(gdb_cv_have_procfs_piocset,
1458 [AC_TRY_COMPILE([#include <unistd.h>
1459 #include <sys/types.h>
1460 #include <sys/procfs.h>
1463 dummy = ioctl(0, PIOCSET, &dummy);
1465 gdb_cv_have_procfs_piocset=yes, gdb_cv_have_procfs_piocset=no)])
1466 AC_MSG_RESULT($gdb_cv_have_procfs_piocset)
1467 if test $gdb_cv_have_procfs_piocset = yes; then
1468 AC_DEFINE(HAVE_PROCFS_PIOCSET, 1,
1469 [Define if ioctl argument PIOCSET is available.])
1473 # Check if the compiler supports the `long long' type.
1475 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
1476 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
1477 [[extern long long foo;]],
1478 [[switch (foo & 2) { case 0: return 1; }]])],
1479 gdb_cv_c_long_long=yes,
1480 gdb_cv_c_long_long=no)])
1481 if test $gdb_cv_c_long_long != yes; then
1482 # libdecnumber requires long long.
1483 AC_MSG_ERROR([Compiler must support long long for GDB.])
1486 # Check if the compiler and runtime support printing long longs.
1488 AC_CACHE_CHECK([for long long support in printf],
1489 gdb_cv_printf_has_long_long,
1490 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1493 l = (l << 16) + 0x0123;
1494 l = (l << 16) + 0x4567;
1495 l = (l << 16) + 0x89ab;
1496 l = (l << 16) + 0xcdef;
1497 sprintf (buf, "0x%016llx", l);
1498 return (strcmp ("0x0123456789abcdef", buf));]])],
1499 gdb_cv_printf_has_long_long=yes,
1500 gdb_cv_printf_has_long_long=no,
1501 gdb_cv_printf_has_long_long=no)])
1502 if test $gdb_cv_printf_has_long_long = yes; then
1503 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
1504 [Define to 1 if the "%ll" format works to print long longs.])
1507 # Check if the compiler and runtime support printing decfloats.
1509 AC_CACHE_CHECK([for decfloat support in printf],
1510 gdb_cv_printf_has_decfloat,
1511 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1513 _Decimal32 d32 = 1.2345df;
1514 _Decimal64 d64 = 1.2345dd;
1515 _Decimal128 d128 = 1.2345dl;
1516 sprintf (buf, "Decimal32: %H\nDecimal64: %D\nDecimal128: %DD", d32, d64, d128);
1517 return (strcmp ("Decimal32: 1.2345\nDecimal64: 1.2345\nDecimal128: 1.2345", buf));]])],
1518 gdb_cv_printf_has_decfloat=yes,
1519 gdb_cv_printf_has_decfloat=no,
1520 gdb_cv_printf_has_decfloat=no)])
1521 if test $gdb_cv_printf_has_decfloat = yes; then
1522 AC_DEFINE(PRINTF_HAS_DECFLOAT, 1,
1523 [Define to 1 if the "%H, %D and %DD" formats work to print decfloats.])
1526 # Check if the compiler supports the `long double' type. We can't use
1527 # AC_C_LONG_DOUBLE because that one does additional checks on the
1528 # constants defined in <float.h> that fail on some systems,
1529 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
1531 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
1532 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
1533 gdb_cv_c_long_double=yes,
1534 gdb_cv_c_long_double=no)])
1535 if test $gdb_cv_c_long_double = yes; then
1536 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
1537 [Define to 1 if the compiler supports long double.])
1540 # Check if the compiler and runtime support printing long doubles.
1542 AC_CACHE_CHECK([for long double support in printf],
1543 gdb_cv_printf_has_long_double,
1544 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
1546 long double f = 3.141592653;
1547 sprintf (buf, "%Lg", f);
1548 return (strncmp ("3.14159", buf, 7));]])],
1549 gdb_cv_printf_has_long_double=yes,
1550 gdb_cv_printf_has_long_double=no,
1551 gdb_cv_printf_has_long_double=no)])
1552 if test $gdb_cv_printf_has_long_double = yes; then
1553 AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
1554 [Define to 1 if the "%Lg" format works to print long doubles.])
1557 # Check if the compiler and runtime support scanning long doubles.
1559 AC_CACHE_CHECK([for long double support in scanf],
1560 gdb_cv_scanf_has_long_double,
1561 [AC_RUN_IFELSE([AC_LANG_PROGRAM(
1562 [[#include <stdio.h>]],
1563 [[char *buf = "3.141592653";
1565 sscanf (buf, "%Lg", &f);
1566 return !(f > 3.14159 && f < 3.14160);]])],
1567 gdb_cv_scanf_has_long_double=yes,
1568 gdb_cv_scanf_has_long_double=no,
1569 gdb_cv_scanf_has_long_double=no)])
1570 if test $gdb_cv_scanf_has_long_double = yes; then
1571 AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
1572 [Define to 1 if the "%Lg" format works to scan long doubles.])
1577 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
1578 SAVE_LDFLAGS=$LDFLAGS
1581 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
1582 *) gdb_cv_bigtoc=-bbigtoc ;;
1585 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
1586 AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
1587 LDFLAGS="${SAVE_LDFLAGS}"
1589 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
1593 AC_MSG_CHECKING(for the dynamic export flag)
1595 if test "${gdb_native}" = yes; then
1596 # The dynamically loaded libthread_db needs access to symbols in the gdb
1597 # executable. Older GNU ld supports --export-dynamic but --dynamic-list
1598 # may not be supported there.
1599 old_LDFLAGS="$LDFLAGS"
1600 # Older GNU ld supports --export-dynamic but --dynamic-list it does not.
1601 RDYNAMIC="-Wl,--dynamic-list=${srcdir}/proc-service.list"
1602 LDFLAGS="$LDFLAGS $RDYNAMIC"
1603 if test "${have_libpython}" = no; then
1604 AC_TRY_LINK([], [], [dynamic_list=true])
1606 # Workaround http://bugs.python.org/issue4434 where static
1607 # libpythonX.Y.a would get its symbols required for
1608 # pythonX.Y/lib-dynload/*.so modules hidden by -Wl,--dynamic-list.
1609 # Problem does not happen for the recommended libpythonX.Y.so linkage.
1610 old_CFLAGS="$CFLAGS"
1611 CFLAGS="$CFLAGS $PYTHON_CFLAGS"
1613 LIBS="$LIBS $PYTHON_LIBS"
1616 [#include "]${have_libpython}[/Python.h"],
1619 err = PyRun_SimpleString ("import itertools\n");
1621 return err == 0 ? 0 : 1;]),
1622 [dynamic_list=true], [], [true])
1624 CFLAGS="$old_CFLAGS"
1626 LDFLAGS="$old_LDFLAGS"
1628 if $dynamic_list; then
1629 found="-Wl,--dynamic-list"
1630 RDYNAMIC='-Wl,--dynamic-list=$(srcdir)/proc-service.list'
1633 RDYNAMIC="-rdynamic"
1636 AC_MSG_RESULT($found)
1638 dnl For certain native configurations, we need to check whether thread
1639 dnl support can be built in or not.
1641 dnl Note that we only want this if we are both native (host == target),
1642 dnl and not doing a canadian cross build (build == host).
1644 if test ${build} = ${host} -a ${host} = ${target} ; then
1647 # See if thread_db library is around for Solaris thread debugging.
1648 # Note that we must explicitly test for version 1 of the library
1649 # because version 0 (present on Solaris 2.4 or earlier) doesn't have
1651 AC_MSG_CHECKING(for Solaris thread debugging library)
1652 if test -f /usr/lib/libthread_db.so.1 ; then
1654 AC_DEFINE(HAVE_THREAD_DB_LIB, 1,
1655 [Define if using Solaris thread debugging.])
1656 CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
1657 CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
1658 AC_CHECK_LIB(dl, dlopen)
1659 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} $RDYNAMIC"
1660 # Sun randomly tweaked the prototypes in <proc_service.h>
1662 AC_MSG_CHECKING(if <proc_service.h> is old)
1663 AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
1665 #include <proc_service.h>
1667 (struct ps_prochandle*, psaddr_t, const void*, size_t);
1668 ],, gdb_cv_proc_service_is_old=no,
1669 gdb_cv_proc_service_is_old=yes)
1671 AC_MSG_RESULT($gdb_cv_proc_service_is_old)
1672 if test $gdb_cv_proc_service_is_old = yes; then
1673 AC_DEFINE(PROC_SERVICE_IS_OLD, 1,
1674 [Define if <proc_service.h> on solaris uses int instead of
1675 size_t, and assorted other type changes.])
1682 AC_MSG_CHECKING(for AiX thread debugging library)
1683 AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
1684 [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
1685 [#ifndef PTHDB_VERSION_3
1688 gdb_cv_have_aix_thread_debug=yes,
1689 gdb_cv_have_aix_thread_debug=no)])
1690 AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1691 if test $gdb_cv_have_aix_thread_debug = yes; then
1692 CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1693 CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1694 LIBS="$LIBS -lpthdebug"
1696 # Older versions of AIX do not provide the declaration for
1697 # the getthrds function (it appears that it was introduced
1699 AC_CHECK_DECLS(getthrds, [], [], [[#include <procinfo.h>]])
1703 AC_SUBST(CONFIG_LDFLAGS)
1706 dnl See if we have a thread_db header file that has TD_NOTALLOC and
1707 dnl other error codes.
1708 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1709 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1710 gdb_cv_thread_db_h_has_td_notalloc,
1712 [#include <thread_db.h>],
1713 [int i = TD_NOTALLOC;],
1714 gdb_cv_thread_db_h_has_td_notalloc=yes,
1715 gdb_cv_thread_db_h_has_td_notalloc=no
1718 AC_CACHE_CHECK([whether <thread_db.h> has TD_VERSION],
1719 gdb_cv_thread_db_h_has_td_version,
1721 [#include <thread_db.h>],
1722 [int i = TD_VERSION;],
1723 gdb_cv_thread_db_h_has_td_version=yes,
1724 gdb_cv_thread_db_h_has_td_version=no
1727 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTLS],
1728 gdb_cv_thread_db_h_has_td_notls,
1730 [#include <thread_db.h>],
1731 [int i = TD_NOTLS;],
1732 gdb_cv_thread_db_h_has_td_notls=yes,
1733 gdb_cv_thread_db_h_has_td_notls=no
1737 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1738 AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1739 [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1741 if test "x$gdb_cv_thread_db_h_has_td_version" = "xyes"; then
1742 AC_DEFINE(THREAD_DB_HAS_TD_VERSION, 1,
1743 [Define if <thread_db.h> has the TD_VERSION error code.])
1745 if test "x$gdb_cv_thread_db_h_has_td_notls" = "xyes"; then
1746 AC_DEFINE(THREAD_DB_HAS_TD_NOTLS, 1,
1747 [Define if <thread_db.h> has the TD_NOTLS error code.])
1750 dnl See if we have a sys/syscall header file that has __NR_tkill.
1751 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1752 AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1753 gdb_cv_sys_syscall_h_has_tkill,
1755 [#include <sys/syscall.h>],
1756 [int i = __NR_tkill;],
1757 gdb_cv_sys_syscall_h_has_tkill=yes,
1758 gdb_cv_sys_syscall_h_has_tkill=no
1762 dnl See if we can issue tkill syscall.
1763 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then
1764 AC_DEFINE(HAVE_TKILL_SYSCALL, 1, [Define if you support the tkill syscall.])
1767 dnl Check if we can disable the virtual address space randomization.
1768 dnl The functionality of setarch -R.
1769 AC_CHECK_DECLS([ADDR_NO_RANDOMIZE],,, [#include <sys/personality.h>])
1770 define([PERSONALITY_TEST], [AC_LANG_PROGRAM([#include <sys/personality.h>], [
1771 # if !HAVE_DECL_ADDR_NO_RANDOMIZE
1772 # define ADDR_NO_RANDOMIZE 0x0040000
1774 /* Test the flag could be set and stays set. */
1775 personality (personality (0xffffffff) | ADDR_NO_RANDOMIZE);
1776 if (!(personality (personality (0xffffffff)) & ADDR_NO_RANDOMIZE))
1778 AC_RUN_IFELSE([PERSONALITY_TEST],
1779 [have_personality=true],
1780 [have_personality=false],
1781 [AC_LINK_IFELSE([PERSONALITY_TEST],
1782 [have_personality=true],
1783 [have_personality=false])])
1784 if $have_personality
1786 AC_DEFINE([HAVE_PERSONALITY], 1,
1787 [Define if you support the personality syscall.])
1790 dnl Set the host's .gdbinit filename.
1799 AC_DEFINE_UNQUOTED(GDBINIT,"$gdbinit",[The .gdbinit filename.])
1801 dnl Handle optional features that can be enabled.
1803 # Support for --with-sysroot is a copy of GDB_AC_WITH_DIR,
1804 # except that the argument to --with-sysroot is optional.
1805 # --with-sysroot (or --with-sysroot=yes) sets the default sysroot path.
1806 if test "x$with_sysroot" = xyes; then
1807 with_sysroot="${exec_prefix}/${target_alias}/sys-root"
1809 AC_ARG_WITH(sysroot,
1810 AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
1811 [search for usr/lib et al within DIR]),
1812 [TARGET_SYSTEM_ROOT=$withval], [TARGET_SYSTEM_ROOT=])
1813 AC_DEFINE_DIR(TARGET_SYSTEM_ROOT, TARGET_SYSTEM_ROOT,
1814 [search for usr/lib et al within DIR])
1815 AC_SUBST(TARGET_SYSTEM_ROOT)
1816 GDB_AC_DEFINE_RELOCATABLE(TARGET_SYSTEM_ROOT, sysroot, ${ac_define_dir})
1818 GDB_AC_WITH_DIR(SYSTEM_GDBINIT, system-gdbinit,
1819 [automatically load a system-wide gdbinit file],
1822 AC_ARG_ENABLE(werror,
1823 AS_HELP_STRING([--enable-werror], [treat compile warnings as errors]),
1824 [case "${enableval}" in
1825 yes | y) ERROR_ON_WARNING="yes" ;;
1826 no | n) ERROR_ON_WARNING="no" ;;
1827 *) AC_MSG_ERROR(bad value ${enableval} for --enable-werror) ;;
1830 # Enable -Werror by default when using gcc. Turn it off for releases.
1831 if test "${GCC}" = yes -a -z "${ERROR_ON_WARNING}" && $development; then
1832 ERROR_ON_WARNING=yes
1836 if test "${ERROR_ON_WARNING}" = yes ; then
1837 WERROR_CFLAGS="-Werror"
1840 build_warnings="-Wall -Wdeclaration-after-statement -Wpointer-arith \
1842 -Wno-unused -Wunused-value -Wunused-function \
1843 -Wno-switch -Wno-char-subscripts -Wmissing-prototypes \
1844 -Wdeclaration-after-statement -Wempty-body -Wmissing-parameter-type \
1845 -Wold-style-declaration -Wold-style-definition"
1847 # Enable -Wno-format by default when using gcc on mingw since many
1848 # GCC versions complain about %I64.
1850 *-*-mingw32*) build_warnings="$build_warnings -Wno-format" ;;
1851 *) build_warnings="$build_warnings -Wformat-nonliteral" ;;
1854 AC_ARG_ENABLE(build-warnings,
1855 AS_HELP_STRING([--enable-build-warnings], [enable build-time compiler warnings if gcc is used]),
1856 [case "${enableval}" in
1858 no) build_warnings="-w";;
1859 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1860 build_warnings="${build_warnings} ${t}";;
1861 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1862 build_warnings="${t} ${build_warnings}";;
1863 *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1865 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1866 echo "Setting compiler warning flags = $build_warnings" 6>&1
1868 AC_ARG_ENABLE(gdb-build-warnings,
1869 AS_HELP_STRING([--enable-gdb-build-warnings], [enable GDB specific build-time compiler warnings if gcc is used]),
1870 [case "${enableval}" in
1872 no) build_warnings="-w";;
1873 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1874 build_warnings="${build_warnings} ${t}";;
1875 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1876 build_warnings="${t} ${build_warnings}";;
1877 *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1879 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1880 echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
1883 if test "x${build_warnings}" != x -a "x$GCC" = xyes
1885 AC_MSG_CHECKING(compiler warning flags)
1886 # Separate out the -Werror flag as some files just cannot be
1887 # compiled with it enabled.
1888 for w in ${build_warnings}; do
1890 -Werr*) WERROR_CFLAGS=-Werror ;;
1891 *) # Check that GCC accepts it
1892 saved_CFLAGS="$CFLAGS"
1894 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
1895 CFLAGS="$saved_CFLAGS"
1898 AC_MSG_RESULT(${WARN_CFLAGS} ${WERROR_CFLAGS})
1900 AC_SUBST(WARN_CFLAGS)
1901 AC_SUBST(WERROR_CFLAGS)
1903 # In the Cygwin environment, we need some additional flags.
1904 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1905 [AC_EGREP_CPP(lose, [
1906 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1908 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1911 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1912 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1914 *go32* ) SER_HARDWIRE=ser-go32.o ;;
1915 *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1916 *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;;
1918 AC_SUBST(SER_HARDWIRE)
1920 # libreadline needs libuser32.a in a cygwin environment
1922 if test x$gdb_cv_os_cygwin = xyes; then
1923 WIN32LIBS="-luser32"
1925 *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1930 # The ser-tcp.c module requires sockets.
1933 AC_DEFINE(USE_WIN32API, 1,
1934 [Define if we should use the Windows API, instead of the
1935 POSIX API. On Windows, we use the Windows API when
1936 building for MinGW, but the POSIX API when building
1938 WIN32LIBS="$WIN32LIBS -lws2_32"
1943 # Add ELF support to GDB, but only if BFD includes ELF support.
1944 GDB_AC_CHECK_BFD([for ELF support in BFD], gdb_cv_var_elf,
1945 [bfd_get_elf_phdr_upper_bound (NULL)], elf-bfd.h)
1946 if test $gdb_cv_var_elf = yes; then
1947 CONFIG_OBS="$CONFIG_OBS elfread.o stap-probe.o"
1948 AC_DEFINE(HAVE_ELF, 1,
1949 [Define if ELF support should be included.])
1950 # -ldl is provided by bfd/Makfile.am (LIBDL) <PLUGINS>.
1951 if test "$plugins" = "yes"; then
1952 AC_SEARCH_LIBS(dlopen, dl)
1956 # Add macho support to GDB, but only if BFD includes it.
1957 GDB_AC_CHECK_BFD([for Mach-O support in BFD], gdb_cv_var_macho,
1958 [bfd_mach_o_lookup_command (NULL, 0, NULL)], mach-o.h)
1959 if test $gdb_cv_var_macho = yes; then
1960 CONFIG_OBS="$CONFIG_OBS machoread.o"
1963 # Add SOM support to GDB, but only if BFD includes it.
1964 GDB_AC_CHECK_BFD([for SOM support in BFD], gdb_cv_var_som,
1965 [bfd_som_attach_aux_hdr (NULL, 0, NULL)], som.h)
1966 if test $gdb_cv_var_som = yes; then
1967 CONFIG_OBS="$CONFIG_OBS somread.o"
1970 # Add any host-specific objects to GDB.
1971 CONFIG_OBS="${CONFIG_OBS} ${gdb_host_obs}"
1973 # If building on ELF, look for lzma support for embedded compressed debug info.
1974 if test $gdb_cv_var_elf = yes; then
1976 AS_HELP_STRING([--with-lzma], [support lzma compression (auto/yes/no)]),
1977 [], [with_lzma=auto])
1978 AC_MSG_CHECKING([whether to use lzma])
1979 AC_MSG_RESULT([$with_lzma])
1981 if test "${with_lzma}" != no; then
1982 AC_LIB_HAVE_LINKFLAGS([lzma], [], [#include "lzma.h"],
1983 [lzma_index_iter iter;
1984 lzma_index_iter_init (&iter, 0);
1985 lzma_mf_is_supported (LZMA_MF_HC3);])
1986 if test "$HAVE_LIBLZMA" != yes; then
1987 if test "$with_lzma" = yes; then
1988 AC_MSG_ERROR([missing liblzma for --with-lzma])
1994 LIBGUI="../libgui/src/libgui.a"
1995 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1997 AC_SUBST(GUI_CFLAGS_X)
2001 AC_SUBST(WIN32LDAPP)
2004 *-*-cygwin* | *-*-mingw* )
2013 if test "${enable_gdbtk}" = "yes"; then
2015 # Gdbtk must have an absolute path to srcdir in order to run
2016 # properly when not installed.
2024 # If $no_tk is nonempty, then we can't do Tk, and there is no
2025 # point to doing Tcl.
2028 if test -z "${no_tcl}" -a -z "${no_tk}"; then
2031 # Check for in-tree tcl
2038 if test "${TCL_SRC_DIR}" = "${topdir}/tcl"; then
2042 # Find Tcl private headers
2043 if test x"${intree}" = xno; then
2044 CY_AC_TCL_PRIVATE_HEADERS
2045 TCL_INCLUDE="${TCL_INCLUDE_SPEC} ${TCL_PRIVATE_INCLUDE}"
2046 TCL_LIBRARY="${TCL_LIB_SPEC}"
2049 # If building tcl in the same src tree, private headers
2050 # are not needed, but we need to be sure to use the right
2052 TCL_INCLUDE="-I${TCL_SRC_DIR}/generic"
2053 TCL_LIBRARY="${TCL_BUILD_LIB_SPEC}"
2054 TCL_DEPS="../tcl/${configdir}${TCL_LIB_FILE}"
2056 AC_SUBST(TCL_INCLUDE)
2057 AC_SUBST(TCL_LIBRARY)
2062 # Check for in-tree Tk
2064 if test "${TK_SRC_DIR}" = "${topdir}/tk"; then
2068 # Find Tk private headers
2069 if test x"${intree}" = xno; then
2070 CY_AC_TK_PRIVATE_HEADERS
2071 TK_INCLUDE="${TK_INCLUDE_SPEC} ${TK_PRIVATE_INCLUDE}"
2072 TK_LIBRARY=${TK_LIB_SPEC}
2075 TK_INCLUDE="-I${TK_SRC_DIR}/generic"
2076 TK_LIBRARY="${TK_BUILD_LIB_SPEC}"
2077 TK_DEPS="../tk/${configdir}/${TK_LIB_FILE}"
2079 AC_SUBST(TK_INCLUDE)
2080 AC_SUBST(TK_LIBRARY)
2082 AC_SUBST(TK_XINCLUDES)
2084 ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
2086 # Include some libraries that Tcl and Tk want.
2087 TCL_LIBS='$(LIBGUI) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
2088 # Yes, the ordering seems wrong here. But it isn't.
2089 # TK_LIBS is the list of libraries that need to be linked
2090 # after Tcl/Tk. Note that this isn't put into LIBS. If it
2091 # were in LIBS then any link tests after this point would
2092 # try to include things like `$(LIBGUI)', which wouldn't work.
2093 GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
2095 CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
2096 CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
2097 CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
2098 CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
2099 CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
2100 CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
2101 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
2103 if test x$gdb_cv_os_cygwin = xyes; then
2104 WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
2105 WIN32LDAPP="-Wl,--subsystem,console"
2106 CONFIG_OBS="${CONFIG_OBS} gdbres.o"
2109 AC_CONFIG_SUBDIRS(gdbtk)
2117 AC_SUBST(GDBTK_CFLAGS)
2118 AC_SUBST(GDBTK_SRC_DIR)
2122 # Unlike the sim directory, whether a simulator is linked is controlled by
2123 # presence of a gdb_sim definition in the target configure.tgt entry.
2124 # This code just checks for a few cases where we'd like to ignore those
2125 # definitions, even when they're present in the '.mt' file. These cases
2126 # are when --disable-sim is specified, or if the simulator directory is
2127 # not part of the source tree.
2130 AS_HELP_STRING([--enable-sim], [link gdb with simulator]),
2131 [echo "enable_sim = $enable_sim";
2132 echo "enableval = ${enableval}";
2133 case "${enableval}" in
2134 yes) ignore_sim=false ;;
2135 no) ignore_sim=true ;;
2136 *) ignore_sim=false ;;
2140 if test ! -d "${srcdir}/../sim"; then
2146 if test "${ignore_sim}" = "false"; then
2147 if test x"${gdb_sim}" != x ; then
2149 SIM_OBS="remote-sim.o"
2150 AC_DEFINE(WITH_SIM, 1, [Define if the simulator is being linked in.])
2156 AC_SUBST(ENABLE_CFLAGS)
2157 AC_SUBST(PROFILE_CFLAGS)
2159 AC_SUBST(CONFIG_OBS)
2160 AC_SUBST(CONFIG_DEPS)
2161 AC_SUBST(CONFIG_SRCS)
2162 AC_SUBST(CONFIG_ALL)
2163 AC_SUBST(CONFIG_CLEAN)
2164 AC_SUBST(CONFIG_INSTALL)
2165 AC_SUBST(CONFIG_UNINSTALL)
2167 # List of host floatformats.
2168 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
2169 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
2170 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
2172 # target_subdir is used by the testsuite to find the target libraries.
2174 if test "${host}" != "${target}"; then
2175 target_subdir="${target_alias}/"
2177 AC_SUBST(target_subdir)
2180 if test "${gdb_native}" = "yes"; then
2181 host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
2182 if test ! -f ${host_makefile_frag}; then
2183 AC_MSG_ERROR("*** Gdb does not support native target ${host}")
2185 frags="$frags $host_makefile_frag"
2187 host_makefile_frag=/dev/null
2190 AC_SUBST_FILE(host_makefile_frag)
2194 if test "${gdb_native}" = "yes"; then
2195 # We pick this up from the host configuration file (.mh) because we
2196 # do not have a native configuration Makefile fragment.
2197 nativefile=`sed -n '
2198 s/NAT_FILE[ ]*=[ ]*\([^ ]*\)/\1/p
2199 ' ${host_makefile_frag}`
2203 if test x"${gdb_osabi}" != x ; then
2204 AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
2205 [Define to the default OS ABI for this configuration.])
2208 # Enable multi-ice-gdb-server.
2209 AC_ARG_ENABLE(multi-ice,
2210 AS_HELP_STRING([--enable-multi-ice], [build the multi-ice-gdb-server]),
2214 *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
2216 if test "x$enable_multi_ice" = xyes; then
2217 AC_CONFIG_SUBDIRS(multi-ice)
2220 AC_ARG_ENABLE(gdbserver,
2221 AS_HELP_STRING([--enable-gdbserver],
2222 [automatically build gdbserver (yes/no/auto, default is auto)]),
2223 [case "${enableval}" in
2225 *) AC_MSG_ERROR(bad value ${enableval} for --enable-gdbserver option) ;;
2226 esac],[enable_gdbserver=auto])
2228 # We only build gdbserver automatically in a native configuration, and
2229 # only if the user did not explicitly disable its build.
2230 if test "$gdb_native" = "yes" -a "$enable_gdbserver" != "no"; then
2231 AC_MSG_CHECKING(whether gdbserver is supported on this host)
2232 if test "x$build_gdbserver" = xyes; then
2234 AC_CONFIG_SUBDIRS(gdbserver)
2235 gdbserver_build_enabled=yes
2241 # If the user explicitly request the gdbserver to be built, verify that
2242 # we were in fact able to enable it.
2243 if test "$enable_gdbserver" = "yes" -a "$gdbserver_build_enabled" != "yes"; then
2244 AC_MSG_ERROR(Automatic gdbserver build is not supported for this configuration)
2247 # Check for babeltrace and babeltrace-ctf
2248 AC_ARG_WITH(babeltrace,
2249 AC_HELP_STRING([--with-babeltrace], [include babeltrace support (auto/yes/no)]),
2250 [], [with_babeltrace=auto])
2251 AC_MSG_CHECKING([whether to use babeltrace])
2252 AC_MSG_RESULT([$with_babeltrace])
2254 if test "x$with_babeltrace" = "xno"; then
2255 AC_MSG_WARN([babletrace support disabled; GDB is unable to read CTF data.])
2257 # Append -Werror to CFLAGS so that configure can catch the warning
2258 # "assignment from incompatible pointer type", which is related to
2259 # the babeltrace change from 1.0.3 to 1.1.0. Babeltrace 1.1.0 works
2260 # in GDB, while babeltrace 1.0.3 is broken.
2261 # AC_LIB_HAVE_LINKFLAGS may modify CPPFLAGS in it, so it should be
2262 # safe to save and restore CFLAGS here.
2263 saved_CFLAGS=$CFLAGS
2264 CFLAGS="$CFLAGS -Werror"
2265 AC_LIB_HAVE_LINKFLAGS([babeltrace], [babeltrace-ctf],
2266 [#include <babeltrace/babeltrace.h>
2267 #include <babeltrace/ctf/events.h>
2268 #include <babeltrace/ctf/iterator.h>],
2269 [struct bt_iter_pos *pos = bt_iter_get_pos (bt_ctf_get_iter (NULL));
2270 struct bt_ctf_event *event = NULL;
2271 const struct bt_definition *scope;
2273 scope = bt_ctf_get_top_level_scope (event,
2274 BT_STREAM_EVENT_HEADER);
2275 bt_ctf_get_uint64 (bt_ctf_get_field (event, scope, "id"));
2277 CFLAGS=$saved_CFLAGS
2279 if test "$HAVE_LIBBABELTRACE" != yes; then
2280 if test "$with_babeltrace" = yes; then
2281 AC_MSG_ERROR([babeltrace is missing or unusable])
2283 AC_MSG_WARN([babeltrace is missing or unusable; GDB is unable to read CTF data.])
2288 # If nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
2289 # to an empty version.
2295 if test "${nativefile}" != ""; then
2296 case "${nativefile}" in
2297 nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
2298 * ) GDB_NM_FILE="${nativefile}"
2300 files="${files} ${GDB_NM_FILE}"
2301 links="${links} nm.h"
2302 AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}", [nativefile])
2304 AC_SUBST(GDB_NM_FILE)
2306 AC_LINK_FILES($files, $links)
2308 dnl Check for exe extension set on certain hosts (e.g. Win32)
2311 dnl Detect the character set used by this host.
2312 dnl At the moment, we just assume it's UTF-8.
2313 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "UTF-8",
2314 [Define to be a string naming the default host character set.])
2316 # Undo the $ec_script escaping suitable for Makefile.
2317 transform=`echo "$program_transform_name" | sed -e 's/[\\$][\\$]/\\$/g'`
2318 GDB_TRANSFORM_NAME=`echo gdb | sed -e "$transform"`
2319 if test "x$GDB_TRANSFORM_NAME" = x; then
2320 GDB_TRANSFORM_NAME=gdb
2322 AC_SUBST(GDB_TRANSFORM_NAME)
2323 GCORE_TRANSFORM_NAME=`echo gcore | sed -e "$transform"`
2324 if test "x$GCORE_TRANSFORM_NAME" = x; then
2325 GCORE_TRANSFORM_NAME=gcore
2327 AC_SUBST(GCORE_TRANSFORM_NAME)
2328 AC_CONFIG_FILES([gcore], [chmod +x gcore])
2330 AC_OUTPUT(Makefile gdb-gdb.gdb doc/Makefile data-directory/Makefile,
2332 case x$CONFIG_HEADERS in
2333 xconfig.h:config.in)