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[deliverable/binutils-gdb.git] / gdb / configure.ac
1 dnl Autoconf configure script for GDB, the GNU debugger.
2 dnl Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
3 dnl Free Software Foundation, Inc.
4 dnl
5 dnl This file is part of GDB.
6 dnl
7 dnl This program is free software; you can redistribute it and/or modify
8 dnl it under the terms of the GNU General Public License as published by
9 dnl the Free Software Foundation; either version 2 of the License, or
10 dnl (at your option) any later version.
11 dnl
12 dnl This program is distributed in the hope that it will be useful,
13 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
14 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 dnl GNU General Public License for more details.
16 dnl
17 dnl You should have received a copy of the GNU General Public License
18 dnl along with this program; if not, write to the Free Software
19 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20
21 dnl Process this file with autoconf to produce a configure script.
22
23 AC_PREREQ(2.59)dnl
24 AC_INIT(main.c)
25 AC_CONFIG_HEADER(config.h:config.in)
26 AM_MAINTAINER_MODE
27
28 AC_PROG_CC
29 AC_GNU_SOURCE
30 AC_AIX
31 AC_ISC_POSIX
32 AM_PROG_CC_STDC
33
34 AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
35 AC_CANONICAL_SYSTEM
36
37 dnl List of object files and targets accumulated by configure.
38
39 CONFIG_OBS=
40 CONFIG_DEPS=
41 CONFIG_SRCS=
42 ENABLE_CFLAGS=
43
44 CONFIG_ALL=
45 CONFIG_CLEAN=
46 CONFIG_INSTALL=
47 CONFIG_UNINSTALL=
48
49 dnl Set up for gettext. PACKAGE is used when we call bindtextdomain.
50
51 CY_GNU_GETTEXT
52
53 localedir='${datadir}/locale'
54 AC_SUBST(localedir)
55
56 if test "x$POSUB" != x; then
57
58 dnl Lifted from GCC's config/gettext.m4.
59 AC_MSG_CHECKING(for catalogs to be installed)
60 # Look for .po and .gmo files in the source directory.
61 CATALOGS= AC_SUBST(CATALOGS)
62 XLINGUAS=
63 for cat in $srcdir/po/*.gmo $srcdir/po/*.po; do
64 # If there aren't any .gmo files the shell will give us the
65 # literal string "../path/to/srcdir/po/*.gmo" which has to be
66 # weeded out.
67 case "$cat" in *\**)
68 continue;;
69 esac
70 # The quadruple backslash is collapsed to a double backslash
71 # by the backticks, then collapsed again by the double quotes,
72 # leaving us with one backslash in the sed expression (right
73 # before the dot that mustn't act as a wildcard).
74 cat=`echo $cat | sed -e "s!$srcdir/!!" -e "s!\\\\.po!.gmo!"`
75 lang=`echo $cat | sed -e 's!po/!!' -e "s!\\\\.gmo!!"`
76 # The user is allowed to set LINGUAS to a list of languages to
77 # install catalogs for. If it's empty that means "all of them."
78 if test "x$LINGUAS" = x; then
79 CATALOGS="$CATALOGS $cat"
80 XLINGUAS="$XLINGUAS $lang"
81 else
82 case "$LINGUAS" in *$lang*)
83 CATALOGS="$CATALOGS $cat"
84 XLINGUAS="$XLINGUAS $lang"
85 ;;
86 esac
87 fi
88 done
89 LINGUAS="$XLINGUAS"
90 AC_MSG_RESULT($LINGUAS)
91
92 CONFIG_ALL="$CONFIG_ALL all-po"
93 CONFIG_CLEAN="$CONFIG_CLEAN clean-po"
94 CONFIG_INSTALL="$CONFIG_INSTALL install-po"
95 CONFIG_UNINSTALL="$CONFIG_UNINSTALL uninstall-po"
96 fi
97
98 PACKAGE=gdb
99 AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of this package. ])
100 AC_SUBST(PACKAGE)
101
102 debugdir=${libdir}/debug
103
104 AC_ARG_WITH(separate-debug-dir,
105 [ --with-separate-debug-dir=path Look for global separate debug info in this path [LIBDIR/debug]],
106 [debugdir="${withval}"])
107
108 AC_DEFINE_DIR(DEBUGDIR, debugdir,
109 [Global directory for separate debug files. ])
110 #AC_DEFINE_UNQUOTED(DEBUGDIR, "$debugdir"),
111
112 AC_CONFIG_SUBDIRS(doc testsuite)
113
114 . $srcdir/configure.host
115
116 . $srcdir/configure.tgt
117
118 # Fetch the default architecture and default target vector from BFD.
119 targ=$target; . $srcdir/../bfd/config.bfd
120
121 # We only want the first architecture, so strip off the others if
122 # there is more than one.
123 targ_archs=`echo $targ_archs | sed 's/ .*//'`
124
125 if test "x$targ_archs" != x; then
126 AC_DEFINE_UNQUOTED(DEFAULT_BFD_ARCH, $targ_archs,
127 [Define to BFD's default architecture. ])
128 fi
129 if test "x$targ_defvec" != x; then
130 AC_DEFINE_UNQUOTED(DEFAULT_BFD_VEC, $targ_defvec,
131 [Define to BFD's default target vector. ])
132 fi
133
134 AC_ARG_PROGRAM
135
136 # The CLI cannot be disabled yet, but may be in the future.
137
138 # Enable CLI.
139 AC_ARG_ENABLE(gdbcli,
140 [ --disable-gdbcli disable command-line interface (CLI)],
141 [case $enableval in
142 yes)
143 ;;
144 no)
145 AC_MSG_ERROR([the command-line interface cannot be disabled yet]) ;;
146 *)
147 AC_MSG_ERROR([bad value $enableval for --enable-gdbcli]) ;;
148 esac],
149 [enable_gdbcli=yes])
150 if test x"$enable_gdbcli" = xyes; then
151 if test -d $srcdir/cli; then
152 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_CLI_OBS)"
153 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_CLI_DEPS)"
154 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_CLI_SRCS)"
155 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_CLI_CFLAGS)"
156 fi
157 fi
158
159 # Enable MI.
160 AC_ARG_ENABLE(gdbmi,
161 [ --disable-gdbmi disable machine-interface (MI)],
162 [case $enableval in
163 yes | no)
164 ;;
165 *)
166 AC_MSG_ERROR([bad value $enableval for --enable-gdbmi]) ;;
167 esac],
168 [enable_gdbmi=yes])
169 if test x"$enable_gdbmi" = xyes; then
170 if test -d $srcdir/mi; then
171 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_MI_OBS)"
172 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_MI_DEPS)"
173 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_MI_SRCS)"
174 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_MI_CFLAGS)"
175 fi
176 fi
177
178 # Enable TUI.
179 AC_ARG_ENABLE(tui,
180 [ --enable-tui enable full-screen terminal user interface (TUI)],
181 [case $enableval in
182 yes | no)
183 ;;
184 *)
185 AC_MSG_ERROR([bad value $enableval for --enable-tui]) ;;
186 esac],enable_tui=yes)
187
188 # Enable gdbtk.
189 AC_ARG_ENABLE(gdbtk,
190 [ --enable-gdbtk enable gdbtk graphical user interface (GUI)],
191 [case $enableval in
192 yes | no)
193 ;;
194 *)
195 AC_MSG_ERROR([bad value $enableval for --enable-gdbtk]) ;;
196 esac],
197 [if test -d $srcdir/gdbtk -a -d $srcdir/../itcl; then
198 enable_gdbtk=yes
199 else
200 enable_gdbtk=no
201 fi])
202 # We unconditionally disable gdbtk tests on selected platforms.
203 case $host_os in
204 go32* | windows*)
205 AC_MSG_WARN([gdbtk isn't supported on $host; disabling])
206 enable_gdbtk=no ;;
207 esac
208
209 # Libunwind support.
210 AC_ARG_WITH(libunwind,
211 [ --with-libunwind Use libunwind frame unwinding support],
212 [case "${withval}" in
213 yes) enable_libunwind=yes ;;
214 no) enable_libunwind=no ;;
215 *) AC_MSG_ERROR(bad value ${withval} for GDB with-libunwind option) ;;
216 esac],[
217 AC_CHECK_HEADERS(libunwind.h)
218 AC_CHECK_HEADERS(libunwind-ia64.h)
219 if test x"$ac_cv_header_libunwind_h" = xyes -a x"$ac_cv_header_libunwind_ia64_h" = xyes; then
220 enable_libunwind=yes;
221 fi
222 ])
223
224 if test x"$enable_libunwind" = xyes; then
225 AC_CHECK_HEADERS(libunwind.h)
226 AC_CHECK_HEADERS(libunwind-ia64.h)
227 AC_DEFINE(HAVE_LIBUNWIND, 1)
228 CONFIG_OBS="$CONFIG_OBS libunwind-frame.o"
229 CONFIG_DEPS="$CONFIG_DEPS libunwind-frame.o"
230 CONFIG_SRCS="$CONFIG_SRCS libunwind-frame.c"
231 fi
232
233 # Profiling support.
234 AC_ARG_ENABLE(profiling,
235 [ --enable-profiling enable profiling of GDB],
236 [case $enableval in
237 yes | no)
238 ;;
239 *)
240 AC_MSG_ERROR([bad value $enableval for --enable-profile]) ;;
241 esac],
242 [enable_profiling=no])
243
244 AC_CHECK_FUNCS(monstartup _mcleanup)
245 AC_CACHE_CHECK([for _etext], ac_cv_var__etext,
246 [AC_TRY_LINK(
247 [#include <stdlib.h>
248 extern char _etext;
249 ],
250 [free (&_etext);], ac_cv_var__etext=yes, ac_cv_var__etext=no)])
251 if test $ac_cv_var__etext = yes; then
252 AC_DEFINE(HAVE__ETEXT, 1,
253 [Define to 1 if your system has the _etext variable. ])
254 fi
255 if test "$enable_profiling" = yes ; then
256 if test $ac_cv_func_monstartup = no || test $ac_cv_func__mcleanup = no; then
257 AC_MSG_ERROR(--enable-profiling requires monstartup and _mcleanup)
258 fi
259 PROFILE_CFLAGS=-pg
260 OLD_CFLAGS="$CFLAGS"
261 CFLAGS="$CFLAGS $PROFILE_CFLAGS"
262
263 AC_CACHE_CHECK([whether $CC supports -pg], ac_cv_cc_supports_pg,
264 [AC_TRY_COMPILE([], [int x;], ac_cv_cc_supports_pg=yes,
265 ac_cv_cc_supports_pg=no)])
266
267 if test $ac_cv_cc_supports_pg = no; then
268 AC_MSG_ERROR(--enable-profiling requires a compiler which supports -pg)
269 fi
270
271 CFLAGS="$OLD_CFLAGS"
272 fi
273
274 # --------------------- #
275 # Checks for programs. #
276 # --------------------- #
277
278 AC_PROG_AWK
279 AC_PROG_INSTALL
280 AC_PROG_LN_S
281 AC_PROG_RANLIB
282 AC_PROG_YACC
283
284 AC_CHECK_TOOL(AR, ar)
285 AC_CHECK_TOOL(DLLTOOL, dlltool)
286 AC_CHECK_TOOL(WINDRES, windres)
287
288 # Needed for GNU/Hurd.
289 AC_CHECK_TOOL(MIG, mig)
290
291 # ---------------------- #
292 # Checks for libraries. #
293 # ---------------------- #
294
295 # We might need to link with -lm; most simulators need it.
296 AC_CHECK_LIB(m, main)
297
298 # We need to link with -lw to get `wctype' on Solaris before Solaris
299 # 2.6. Solaris 2.6 and beyond have this function in libc, and have a
300 # libw that some versions of the GNU linker cannot hanle (GNU ld 2.9.1
301 # is known to have this problem). Therefore we avoid libw if we can.
302 AC_CHECK_FUNC(wctype, [],
303 [AC_CHECK_LIB(w, wctype)])
304
305 # Some systems (e.g. Solaris) have `gethostbyname' in libnsl.
306 AC_SEARCH_LIBS(gethostbyname, nsl)
307
308 # Some systems (e.g. Solaris) have `socketpair' in libsocket.
309 AC_SEARCH_LIBS(socketpair, socket)
310
311 # For the TUI, we need enhanced curses functionality.
312 #
313 # FIXME: kettenis/20040905: We prefer ncurses over the vendor-supplied
314 # curses library because the latter might not provide all the
315 # functionality we need. However, this leads to problems on systems
316 # where the linker searches /usr/local/lib, but the compiler doesn't
317 # search /usr/local/include, if ncurses is installed in /usr/local. A
318 # default installation of ncurses on alpha*-dec-osf* will lead to such
319 # a situation.
320 AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses])
321
322 # Since GDB uses Readline, we need termcap functionality. In many
323 # cases this will be provided by the curses library, but some systems
324 # have a seperate termcap library, or no curses library at all.
325
326 case $host_os in
327 cygwin*)
328 if test -d $srcdir/libtermcap; then
329 LIBS="../libtermcap/libtermcap.a $LIBS"
330 ac_cv_search_tgetent="../libtermcap/libtermcap.a"
331 fi ;;
332 go32* | *djgpp*)
333 ac_cv_search_tgetent="none required"
334 ;;
335 esac
336
337 # These are the libraries checked by Readline.
338 AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses])
339
340 if test "$ac_cv_search_tgetent" = no; then
341 AC_MSG_ERROR([no termcap library found])
342 fi
343
344 # ------------------------- #
345 # Checks for header files. #
346 # ------------------------- #
347
348 AC_HEADER_DIRENT
349 AC_HEADER_STAT
350 AC_HEADER_STDC
351 AC_CHECK_HEADERS(nlist.h)
352 AC_CHECK_HEADERS(link.h, [], [],
353 [#if HAVE_SYS_TYPES_H
354 # include <sys/types.h>
355 #endif
356 #if HAVE_NLIST_H
357 # include <nlist.h>
358 #endif
359 ])
360 AC_CHECK_HEADERS(machine/reg.h)
361 AC_CHECK_HEADERS(poll.h sys/poll.h)
362 AC_CHECK_HEADERS(proc_service.h thread_db.h gnu/libc-version.h)
363 AC_CHECK_HEADERS(stddef.h)
364 AC_CHECK_HEADERS(stdlib.h)
365 AC_CHECK_HEADERS(stdint.h)
366 AC_CHECK_HEADERS(string.h memory.h strings.h)
367 AC_CHECK_HEADERS(sys/fault.h)
368 AC_CHECK_HEADERS(sys/file.h)
369 AC_CHECK_HEADERS(sys/filio.h)
370 AC_CHECK_HEADERS(sys/ioctl.h)
371 AC_CHECK_HEADERS(sys/param.h)
372 AC_CHECK_HEADERS(sys/proc.h, [], [],
373 [#if HAVE_SYS_PARAM_H
374 # include <sys/param.h>
375 #endif
376 ])
377 AC_CHECK_HEADERS(sys/procfs.h)
378 AC_CHECK_HEADERS(sys/ptrace.h ptrace.h)
379 AC_CHECK_HEADERS(sys/reg.h sys/debugreg.h)
380 AC_CHECK_HEADERS(sys/select.h)
381 AC_CHECK_HEADERS(sys/syscall.h)
382 AC_CHECK_HEADERS(sys/types.h)
383 AC_CHECK_HEADERS(sys/user.h, [], [],
384 [#if HAVE_SYS_PARAM_H
385 # include <sys/param.h>
386 #endif
387 ])
388 AC_CHECK_HEADERS(sys/wait.h wait.h)
389 AC_CHECK_HEADERS(termios.h termio.h sgtty.h)
390 AC_CHECK_HEADERS(unistd.h)
391
392 # On Solaris 2.[789], we need to define _MSE_INT_H to avoid a clash
393 # between <widec.h> and <wchar.h> that would cause AC_CHECK_HEADERS to
394 # think that we don't have <curses.h> if we're using GCC.
395 case $host_os in
396 solaris2.[[789]])
397 if test "$GCC" = yes; then
398 AC_DEFINE(_MSE_INT_H, 1,
399 [Define to 1 to avoid a clash between <widec.h> and <wchar.h> on
400 Solaris 2.[789] when using GCC. ])
401 fi ;;
402 esac
403 AC_CHECK_HEADERS(curses.h cursesX.h ncurses.h ncurses/ncurses.h)
404 AC_CHECK_HEADERS(ncurses/term.h)
405 AC_CHECK_HEADERS(term.h, [], [],
406 [#if HAVE_CURSES_H
407 # include <curses.h>
408 #endif
409 ])
410
411 # FIXME: kettenis/20030102: In most cases we include these
412 # unconditionally, so what's the point in checking these?
413 AC_CHECK_HEADERS(ctype.h time.h)
414
415 # ------------------------- #
416 # Checks for declarations. #
417 # ------------------------- #
418
419 AC_CHECK_DECLS([free, malloc, realloc])
420 AC_CHECK_DECLS([strerror, strstr])
421 AC_CHECK_DECLS([getopt, snprintf, vsnprintf])
422
423 # ----------------------- #
424 # Checks for structures. #
425 # ----------------------- #
426
427 AC_CHECK_MEMBERS([struct stat.st_blocks])
428 AC_CHECK_MEMBERS([struct stat.st_blksize])
429
430 # ------------------ #
431 # Checks for types. #
432 # ------------------ #
433
434 AC_TYPE_SIGNAL
435 AC_CHECK_TYPES(socklen_t, [], [],
436 [#include <sys/types.h>
437 #include <sys/socket.h>
438 ])
439 AC_CHECK_TYPES(uintptr_t, [], [], [#include <stdint.h>])
440
441 # ------------------------------------- #
442 # Checks for compiler characteristics. #
443 # ------------------------------------- #
444
445 AC_C_CONST
446 AC_C_INLINE
447
448 # ------------------------------ #
449 # Checks for library functions. #
450 # ------------------------------ #
451
452 AC_FUNC_ALLOCA
453 AC_FUNC_MMAP
454 AC_FUNC_VFORK
455 AC_CHECK_FUNCS(canonicalize_file_name realpath)
456 AC_CHECK_FUNCS(getuid getgid)
457 AC_CHECK_FUNCS(poll)
458 AC_CHECK_FUNCS(pread64)
459 AC_CHECK_FUNCS(sbrk)
460 AC_CHECK_FUNCS(setpgid setpgrp)
461 AC_CHECK_FUNCS(sigaction sigprocmask sigsetmask)
462 AC_CHECK_FUNCS(socketpair)
463 AC_CHECK_FUNCS(syscall)
464 AC_CHECK_FUNCS(ttrace)
465 AC_CHECK_FUNCS(wborder)
466
467 # Check the return and argument types of ptrace. No canned test for
468 # this, so roll our own.
469 gdb_ptrace_headers='
470 #if HAVE_SYS_TYPES_H
471 # include <sys/types.h>
472 #endif
473 #if HAVE_SYS_PTRACE_H
474 # include <sys/ptrace.h>
475 #endif
476 #if HAVE_UNISTD_H
477 # include <unistd.h>
478 #endif
479 '
480 # There is no point in checking if we don't have a prototype.
481 AC_CHECK_DECLS(ptrace, [], [
482 : ${gdb_cv_func_ptrace_ret='int'}
483 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
484 ], $gdb_ptrace_headers)
485 # Check return type.
486 AC_CACHE_CHECK([return type of ptrace], gdb_cv_func_ptrace_ret,
487 AC_TRY_COMPILE($gdb_ptrace_headers,
488 [extern int ptrace ();],
489 gdb_cv_func_ptrace_ret='int',
490 gdb_cv_func_ptrace_ret='long'))
491 AC_DEFINE_UNQUOTED(PTRACE_TYPE_RET, $gdb_cv_func_ptrace_ret,
492 [Define as the return type of ptrace.])
493 # Check argument types.
494 AC_CACHE_CHECK([types of arguments for ptrace], gdb_cv_func_ptrace_args, [
495 for gdb_arg1 in 'int' 'long'; do
496 for gdb_arg2 in 'pid_t' 'int' 'long'; do
497 for gdb_arg3 in 'int *' 'caddr_t' 'int' 'long'; do
498 for gdb_arg4 in 'int' 'long'; do
499 AC_TRY_COMPILE($gdb_ptrace_headers, [
500 extern $gdb_cv_func_ptrace_ret
501 ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4);
502 ], [gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4";
503 break 4;])
504 for gdb_arg5 in 'int *' 'int' 'long'; do
505 AC_TRY_COMPILE($gdb_ptrace_headers, [
506 extern $gdb_cv_func_ptrace_ret
507 ptrace ($gdb_arg1, $gdb_arg2, $gdb_arg3, $gdb_arg4, $gdb_arg5);
508 ], [
509 gdb_cv_func_ptrace_args="$gdb_arg1,$gdb_arg2,$gdb_arg3,$gdb_arg4,$gdb_arg5";
510 break 5;])
511 done
512 done
513 done
514 done
515 done
516 # Provide a safe default value.
517 : ${gdb_cv_func_ptrace_args='int,int,long,long'}
518 ])
519 ac_save_IFS=$IFS; IFS=','
520 set dummy `echo "$gdb_cv_func_ptrace_args" | sed 's/\*/\*/g'`
521 IFS=$ac_save_IFS
522 shift
523 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG3, $[3],
524 [Define to the type of arg 3 for ptrace.])
525 if test -n "$[5]"; then
526 AC_DEFINE_UNQUOTED(PTRACE_TYPE_ARG5, $[5],
527 [Define to the type of arg 5 for ptrace.])
528 fi
529
530 dnl AC_FUNC_SETPGRP does not work when cross compiling
531 dnl Instead, assume we will have a prototype for setpgrp if cross compiling.
532 if test "$cross_compiling" = no; then
533 AC_FUNC_SETPGRP
534 else
535 AC_CACHE_CHECK([whether setpgrp takes no argument], ac_cv_func_setpgrp_void,
536 [AC_TRY_COMPILE([
537 #include <unistd.h>
538 ], [
539 if (setpgrp(1,1) == -1)
540 exit (0);
541 else
542 exit (1);
543 ], ac_cv_func_setpgrp_void=no, ac_cv_func_setpgrp_void=yes)])
544 if test $ac_cv_func_setpgrp_void = yes; then
545 AC_DEFINE(SETPGRP_VOID, 1)
546 fi
547 fi
548
549 # Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't do
550 # since sigsetjmp might only be defined as a macro.
551 AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
552 [AC_TRY_COMPILE([
553 #include <setjmp.h>
554 ], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
555 gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
556 if test $gdb_cv_func_sigsetjmp = yes; then
557 AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
558 fi
559
560 # Assume we'll default to using the included libiberty regex.
561 gdb_use_included_regex=yes
562
563 # However, if the system regex is GNU regex, then default to *not*
564 # using the included regex.
565 AC_CACHE_CHECK(
566 [for GNU regex],
567 [gdb_cv_have_gnu_regex],
568 [AC_TRY_COMPILE(
569 [#include <gnu-versions.h>],
570 [#define REGEX_INTERFACE_VERSION 1
571 #if _GNU_REGEX_INTERFACE_VERSION != REGEX_INTERFACE_VERSION
572 # error "Version mismatch"
573 #endif],
574 gdb_cv_have_gnu_regex=yes,
575 gdb_cv_have_gnu_regex=no)])
576 if test $gdb_cv_have_gnu_regex = yes; then
577 gdb_use_included_regex=no
578 fi
579
580 AC_ARG_WITH(included-regex,
581 [ --without-included-regex don't use included regex; this is the default
582 on systems with version 2 of the GNU C library
583 (use with caution on other system)],
584 gdb_with_regex=$withval,
585 gdb_with_regex=$gdb_use_included_regex)
586 if test "$gdb_with_regex" = yes; then
587 AC_DEFINE(USE_INCLUDED_REGEX, 1,
588 [Define to 1 if the regex included in libiberty should be used.])
589 fi
590
591 # Check if <sys/proc.h> defines `struct thread' with a td_pcb member.
592 AC_CHECK_MEMBERS([struct thread.td_pcb], [], [],
593 [#include <sys/param.h>
594 #include <sys/proc.h>
595 ])
596
597 # See if <sys/lwp.h> defines `struct lwp`.
598 AC_CACHE_CHECK([for struct lwp], gdb_cv_struct_lwp,
599 [AC_TRY_COMPILE([#include <sys/param.h>
600 #include <sys/lwp.h>], [struct lwp l;],
601 gdb_cv_struct_lwp=yes, gdb_cv_struct_lwp=no)])
602 if test $gdb_cv_struct_lwp = yes; then
603 AC_DEFINE(HAVE_STRUCT_LWP, 1,
604 [Define to 1 if your system has struct lwp.])
605 fi
606
607 # See if <machine/reg.h> degines `struct reg'.
608 AC_CACHE_CHECK([for struct reg in machine/reg.h], gdb_cv_struct_reg,
609 [AC_TRY_COMPILE([#include <sys/types.h>
610 #include <machine/reg.h>], [struct reg r;],
611 gdb_cv_struct_reg=yes, gdb_cv_struct_reg=no)])
612 if test $gdb_cv_struct_reg = yes; then
613 AC_DEFINE(HAVE_STRUCT_REG, 1,
614 [Define to 1 if your system has struct reg in <machine/reg.h>.])
615 fi
616
617 # See if <machine/reg.h> supports the %fs and %gs i386 segment registers.
618 # Older i386 BSD's don't have the r_fs and r_gs members of `struct reg'.
619 AC_CHECK_MEMBERS([struct reg.r_fs, struct reg.r_gs], [], [],
620 [#include <machine/reg.h>])
621
622 # See if <sys/ptrace.h> provides the PTRACE_GETREGS request.
623 AC_MSG_CHECKING(for PTRACE_GETREGS)
624 AC_CACHE_VAL(gdb_cv_have_ptrace_getregs,
625 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
626 [PTRACE_GETREGS;],
627 [gdb_cv_have_ptrace_getregs=yes],
628 [gdb_cv_have_ptrace_getregs=no])])
629 AC_MSG_RESULT($gdb_cv_have_ptrace_getregs)
630 if test $gdb_cv_have_ptrace_getregs = yes; then
631 AC_DEFINE(HAVE_PTRACE_GETREGS)
632 fi
633
634 # See if <sys/ptrace.h> provides the PTRACE_GETFPXREGS request.
635 AC_MSG_CHECKING(for PTRACE_GETFPXREGS)
636 AC_CACHE_VAL(gdb_cv_have_ptrace_getfpxregs,
637 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
638 [PTRACE_GETFPXREGS;],
639 [gdb_cv_have_ptrace_getfpxregs=yes],
640 [gdb_cv_have_ptrace_getfpxregs=no])])
641 AC_MSG_RESULT($gdb_cv_have_ptrace_getfpxregs)
642 if test $gdb_cv_have_ptrace_getfpxregs = yes; then
643 AC_DEFINE(HAVE_PTRACE_GETFPXREGS)
644 fi
645
646 # See if <sys/ptrace.h> provides the PT_GETDBREGS request.
647 AC_MSG_CHECKING(for PT_GETDBREGS)
648 AC_CACHE_VAL(gdb_cv_have_pt_getdbregs,
649 [AC_TRY_COMPILE([#include <sys/types.h>
650 #include <sys/ptrace.h>],
651 [PT_GETDBREGS;],
652 [gdb_cv_have_pt_getdbregs=yes],
653 [gdb_cv_have_pt_getdbregs=no])])
654 AC_MSG_RESULT($gdb_cv_have_pt_getdbregs)
655 if test $gdb_cv_have_pt_getdbregs = yes; then
656 AC_DEFINE(HAVE_PT_GETDBREGS)
657 fi
658
659 # See if <sys/ptrace.h> provides the PT_GETXMMREGS request.
660 AC_MSG_CHECKING(for PT_GETXMMREGS)
661 AC_CACHE_VAL(gdb_cv_have_pt_getxmmregs,
662 [AC_TRY_COMPILE([#include <sys/types.h>
663 #include <sys/ptrace.h>],
664 [PT_GETXMMREGS;],
665 [gdb_cv_have_pt_getxmmregs=yes],
666 [gdb_cv_have_pt_getxmmregs=no])])
667 AC_MSG_RESULT($gdb_cv_have_pt_getxmmregs)
668 if test $gdb_cv_have_pt_getxmmregs = yes; then
669 AC_DEFINE(HAVE_PT_GETXMMREGS)
670 fi
671
672 # If we are configured native on GNU/Linux, work around problems with
673 # sys/procfs.h
674 # Also detect which type of /proc is in use, such as for Unixware or Solaris.
675
676 if test "${target}" = "${host}"; then
677 case "${host}" in
678 i[[3456]]86-*-linux*)
679 AC_DEFINE(START_INFERIOR_TRAPS_EXPECTED,2)
680 AC_DEFINE(sys_quotactl)
681 ;;
682 *-*-unixware* | *-*-sysv4.2* | *-*-sysv5* | *-*-interix* )
683 AC_DEFINE(NEW_PROC_API)
684 ;;
685 *-*-solaris2.[[6789]] | *-*-solaris2.1[[0-9]])
686 AC_DEFINE(NEW_PROC_API)
687 ;;
688 mips-sgi-irix5*)
689 # Work around <sys/proc.h> needing _KMEMUSER problem on IRIX 5.
690 AC_DEFINE([_KMEMUSER], 1)
691 ;;
692 esac
693 fi
694
695 if test "$ac_cv_header_sys_procfs_h" = yes; then
696 BFD_HAVE_SYS_PROCFS_TYPE(pstatus_t)
697 BFD_HAVE_SYS_PROCFS_TYPE(prrun_t)
698 BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
699 BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
700 BFD_HAVE_SYS_PROCFS_TYPE(prgregset_t)
701 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset_t)
702 BFD_HAVE_SYS_PROCFS_TYPE(prgregset32_t)
703 BFD_HAVE_SYS_PROCFS_TYPE(prfpregset32_t)
704 BFD_HAVE_SYS_PROCFS_TYPE(lwpid_t)
705 BFD_HAVE_SYS_PROCFS_TYPE(psaddr_t)
706 BFD_HAVE_SYS_PROCFS_TYPE(prsysent_t)
707 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigset_t)
708 BFD_HAVE_SYS_PROCFS_TYPE(pr_sigaction64_t)
709 BFD_HAVE_SYS_PROCFS_TYPE(pr_siginfo64_t)
710
711
712 dnl Check for broken prfpregset_t type
713
714 dnl For Linux/i386, glibc 2.1.3 was released with a bogus
715 dnl prfpregset_t type (it's a typedef for the pointer to a struct
716 dnl instead of the struct itself). We detect this here, and work
717 dnl around it in gdb_proc_service.h.
718
719 if test $bfd_cv_have_sys_procfs_type_prfpregset_t = yes; then
720 AC_MSG_CHECKING(whether prfpregset_t type is broken)
721 AC_CACHE_VAL(gdb_cv_prfpregset_t_broken,
722 [AC_TRY_RUN([#include <sys/procfs.h>
723 int main ()
724 {
725 if (sizeof (prfpregset_t) == sizeof (void *))
726 return 1;
727 return 0;
728 }],
729 gdb_cv_prfpregset_t_broken=no,
730 gdb_cv_prfpregset_t_broken=yes,
731 gdb_cv_prfpregset_t_broken=yes)])
732 AC_MSG_RESULT($gdb_cv_prfpregset_t_broken)
733 if test $gdb_cv_prfpregset_t_broken = yes; then
734 AC_DEFINE(PRFPREGSET_T_BROKEN)
735 fi
736 fi
737
738 dnl Check for PIOCSET ioctl entry
739
740 AC_MSG_CHECKING(for PIOCSET ioctl entry in sys/procfs.h)
741 AC_CACHE_VAL(gdb_cv_have_procfs_piocset,
742 [AC_TRY_COMPILE([#include <unistd.h>
743 #include <sys/types.h>
744 #include <sys/procfs.h>
745 ], [
746 int dummy;;
747 dummy = ioctl(0, PIOCSET, &dummy);
748 ],
749 gdb_cv_have_procfs_piocset=yes, gdb_cv_have_procfs_piocset=no)])
750 AC_MSG_RESULT($gdb_cv_have_procfs_piocset)
751 if test $gdb_cv_have_procfs_piocset = yes; then
752 AC_DEFINE(HAVE_PROCFS_PIOCSET)
753 fi
754 fi
755
756 dnl For native ports (host == target), check to see what kind of
757 dnl legacy link.h support is needed. (See solib-legacy.c.)
758 if test ${host} = ${target} ; then
759 dnl Check for struct link_map with l_ members which are indicative
760 dnl of SVR4-like shared libraries
761
762 AC_MSG_CHECKING(for member l_addr in struct link_map)
763 AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_l_members,
764 [AC_TRY_COMPILE([#include <link.h>],
765 [struct link_map lm; (void) lm.l_addr;],
766 gdb_cv_have_struct_link_map_with_l_members=yes,
767 gdb_cv_have_struct_link_map_with_l_members=no)])
768 AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_l_members)
769 if test $gdb_cv_have_struct_link_map_with_l_members = yes; then
770 AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_L_MEMBERS)
771 fi
772
773 dnl Check for struct link_map with lm_ members which are indicative
774 dnl of SunOS-like shared libraries
775
776 AC_MSG_CHECKING(for member lm_addr in struct link_map)
777 AC_CACHE_VAL(gdb_cv_have_struct_link_map_with_lm_members,
778 [AC_TRY_COMPILE([#include <sys/types.h>
779 #include <link.h>],
780 [struct link_map lm; (void) lm.lm_addr;],
781 gdb_cv_have_struct_link_map_with_lm_members=yes,
782 gdb_cv_have_struct_link_map_with_lm_members=no)])
783 AC_MSG_RESULT($gdb_cv_have_struct_link_map_with_lm_members)
784 if test $gdb_cv_have_struct_link_map_with_lm_members = yes; then
785 AC_DEFINE(HAVE_STRUCT_LINK_MAP_WITH_LM_MEMBERS)
786 fi
787
788 dnl Check for struct so_map with som_ members which are found on
789 dnl some *BSD systems.
790
791 AC_MSG_CHECKING(for member som_addr in struct so_map)
792 AC_CACHE_VAL(gdb_cv_have_struct_so_map_with_som_members,
793 [AC_TRY_COMPILE([#include <sys/types.h>
794 #ifdef HAVE_NLIST_H
795 #include <nlist.h>
796 #endif
797 #include <link.h>],
798 [struct so_map lm; (void) lm.som_addr;],
799 gdb_cv_have_struct_so_map_with_som_members=yes,
800 gdb_cv_have_struct_so_map_with_som_members=no)])
801 AC_MSG_RESULT($gdb_cv_have_struct_so_map_with_som_members)
802 if test $gdb_cv_have_struct_so_map_with_som_members = yes; then
803 AC_DEFINE(HAVE_STRUCT_SO_MAP_WITH_SOM_MEMBERS)
804 fi
805
806 dnl Check for struct link_map32 type, which allows a 64-bit Solaris
807 dnl debugger to debug a 32-bit Solaris app with 32-bit shared libraries.
808
809 AC_MSG_CHECKING(for struct link_map32 in sys/link.h)
810 AC_CACHE_VAL(gdb_cv_have_struct_link_map32,
811 [AC_TRY_COMPILE([#define _SYSCALL32
812 #include <sys/link.h>], [struct link_map32 l;],
813 gdb_cv_have_struct_link_map32=yes,
814 gdb_cv_have_struct_link_map32=no)])
815 AC_MSG_RESULT($gdb_cv_have_struct_link_map32)
816 if test $gdb_cv_have_struct_link_map32 = yes; then
817 AC_DEFINE(HAVE_STRUCT_LINK_MAP32)
818 AC_DEFINE(_SYSCALL32)
819 fi
820 fi
821
822 # Check if the compiler supports the `long long' type.
823
824 AC_CACHE_CHECK([for long long support in compiler], gdb_cv_c_long_long,
825 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
826 [[extern long long foo;]],
827 [[switch (foo & 2) { case 0: return 1; }]])],
828 gdb_cv_c_long_long=yes,
829 gdb_cv_c_long_long=no)])
830 if test $gdb_cv_c_long_long = yes; then
831 AC_DEFINE(CC_HAS_LONG_LONG, 1,
832 [Define to 1 if the compiler supports long long.])
833 fi
834
835 # Check if the compiler and runtime support printing long longs.
836
837 AC_CACHE_CHECK([for long long support in printf],
838 gdb_cv_printf_has_long_long,
839 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
840 [[char buf[32];
841 long long l = 0;
842 l = (l << 16) + 0x0123;
843 l = (l << 16) + 0x4567;
844 l = (l << 16) + 0x89ab;
845 l = (l << 16) + 0xcdef;
846 sprintf (buf, "0x%016llx", l);
847 return (strcmp ("0x0123456789abcdef", buf));]])],
848 gdb_cv_printf_has_long_long=yes,
849 gdb_cv_printf_has_long_long=no,
850 gdb_cv_printf_has_long_long=no)])
851 if test $gdb_cv_printf_has_long_long = yes; then
852 AC_DEFINE(PRINTF_HAS_LONG_LONG, 1,
853 [Define to 1 if the "%ll" format works to print long longs.])
854 fi
855
856 # Check if the compiler supports the `long double' type. We can't use
857 # AC_C_LONG_DOUBLE because that one does additional checks on the
858 # constants defined in <float.h> that fail on some systems,
859 # e.g. FreeBSD/i386 4.7 and OpenBSD/i386 3.6.
860
861 AC_CACHE_CHECK([for long double support in compiler], gdb_cv_c_long_double,
862 [AC_COMPILE_IFELSE([AC_LANG_SOURCE([[long double foo;]])],
863 gdb_cv_c_long_double=yes,
864 gdb_cv_c_long_double=no)])
865 if test $gdb_cv_c_long_double = yes; then
866 AC_DEFINE(HAVE_LONG_DOUBLE, 1,
867 [Define to 1 if the compiler supports long double.])
868 fi
869
870 # Check if the compiler and runtime support printing long doubles.
871
872 AC_CACHE_CHECK([for long double support in printf],
873 gdb_cv_printf_has_long_double,
874 [AC_RUN_IFELSE([AC_LANG_PROGRAM([AC_INCLUDES_DEFAULT],
875 [[char buf[16];
876 long double f = 3.141592653;
877 sprintf (buf, "%Lg", f);
878 return (strncmp ("3.14159", buf, 7));]])],
879 gdb_cv_printf_has_long_double=yes,
880 gdb_cv_printf_has_long_double=no,
881 gdb_cv_printf_has_long_double=no)])
882 if test $gdb_cv_printf_has_long_double = yes; then
883 AC_DEFINE(PRINTF_HAS_LONG_DOUBLE, 1,
884 [Define to 1 if the "%Lg" format works to print long doubles.])
885 fi
886
887 # Check if the compiler and runtime support scanning long doubles.
888
889 AC_CACHE_CHECK([for long double support in scanf],
890 gdb_cv_scanf_has_long_double,
891 [AC_RUN_IFELSE([AC_LANG_PROGRAM(
892 [[#include <stdio.h>]],
893 [[char *buf = "3.141592653";
894 long double f = 0;
895 sscanf (buf, "%Lg", &f);
896 return !(f > 3.14159 && f < 3.14160);]])],
897 gdb_cv_scanf_has_long_double=yes,
898 gdb_cv_scanf_has_long_double=no,
899 gdb_cv_scanf_has_long_double=no)])
900 if test $gdb_cv_scanf_has_long_double = yes; then
901 AC_DEFINE(SCANF_HAS_LONG_DOUBLE, 1,
902 [Define to 1 if the "%Lg" format works to scan long doubles.])
903 fi
904
905 case ${host_os} in
906 aix*)
907 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
908 SAVE_LDFLAGS=$LDFLAGS
909
910 case $GCC in
911 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
912 *) gdb_cv_bigtoc=-bbigtoc ;;
913 esac
914
915 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
916 AC_TRY_LINK([], [int i;], [], [gdb_cv_bigtoc=])
917 LDFLAGS="${SAVE_LDFLAGS}"
918 ])
919 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} ${gdb_cv_bigtoc}"
920 ;;
921 esac
922
923
924 dnl For certain native configurations, we need to check whether thread
925 dnl support can be built in or not.
926 dnl
927 dnl Note that we only want this if we are both native (host == target),
928 dnl and not doing a canadian cross build (build == host).
929
930 if test ${build} = ${host} -a ${host} = ${target} ; then
931 case ${host_os} in
932 hpux*)
933 AC_MSG_CHECKING(for HPUX/OSF thread support)
934 if test -f /usr/include/dce/cma_config.h ; then
935 if test "$GCC" = "yes" ; then
936 AC_MSG_RESULT(yes)
937 AC_DEFINE(HAVE_HPUX_THREAD_SUPPORT)
938 CONFIG_OBS="${CONFIG_OBS} hpux-thread.o"
939 CONFIG_SRCS="${CONFIG_SRCS} hpux-thread.c"
940 else
941 AC_MSG_RESULT(no (suppressed because you are not using GCC))
942 fi
943 else
944 AC_MSG_RESULT(no)
945 fi
946 ;;
947 solaris*)
948 # See if thread_db library is around for Solaris thread debugging.
949 # Note that we must explicitly test for version 1 of the library
950 # because version 0 (present on Solaris 2.4 or earlier) doesn't have
951 # the same API.
952 AC_MSG_CHECKING(for Solaris thread debugging library)
953 if test -f /usr/lib/libthread_db.so.1 ; then
954 AC_MSG_RESULT(yes)
955 AC_DEFINE(HAVE_THREAD_DB_LIB)
956 CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
957 CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
958 AC_CHECK_LIB(dl, dlopen)
959 if test "$GCC" = "yes" ; then
960 # The GNU linker requires the -export-dynamic option to make
961 # all symbols visible in the dynamic symbol table.
962 hold_ldflags=$LDFLAGS
963 AC_MSG_CHECKING(for the ld -export-dynamic flag)
964 LDFLAGS="${LDFLAGS} -Wl,-export-dynamic"
965 AC_TRY_LINK(, [int i;], found=yes, found=no)
966 LDFLAGS=$hold_ldflags
967 AC_MSG_RESULT($found)
968 if test $found = yes; then
969 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -Wl,-export-dynamic"
970 fi
971 fi
972 # Sun randomly tweaked the prototypes in <proc_service.h>
973 # at one point.
974 AC_MSG_CHECKING(if <proc_service.h> is old)
975 AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
976 AC_TRY_COMPILE([
977 #include <proc_service.h>
978 ps_err_e ps_pdwrite
979 (struct ps_prochandle*, psaddr_t, const void*, size_t);
980 ],, gdb_cv_proc_service_is_old=no,
981 gdb_cv_proc_service_is_old=yes)
982 ])
983 AC_MSG_RESULT($gdb_cv_proc_service_is_old)
984 if test $gdb_cv_proc_service_is_old = yes; then
985 AC_DEFINE(PROC_SERVICE_IS_OLD)
986 fi
987 else
988 AC_MSG_RESULT(no)
989 fi
990 ;;
991 aix*)
992 AC_MSG_CHECKING(for AiX thread debugging library)
993 AC_CACHE_VAL(gdb_cv_have_aix_thread_debug,
994 [AC_TRY_COMPILE([#include <sys/pthdebug.h>],
995 [#ifndef PTHDB_VERSION_3
996 #error
997 #endif],
998 gdb_cv_have_aix_thread_debug=yes,
999 gdb_cv_have_aix_thread_debug=no)])
1000 AC_MSG_RESULT($gdb_cv_have_aix_thread_debug)
1001 if test $gdb_cv_have_aix_thread_debug = yes; then
1002 CONFIG_SRCS="${CONFIG_SRCS} aix-thread.c"
1003 CONFIG_OBS="${CONFIG_OBS} aix-thread.o"
1004 CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -lpthdebug"
1005 fi
1006 ;;
1007 esac
1008 AC_SUBST(CONFIG_LDFLAGS)
1009 fi
1010
1011 dnl See if we have a thread_db header file that has TD_NOTALLOC.
1012 if test "x$ac_cv_header_thread_db_h" = "xyes"; then
1013 AC_CACHE_CHECK([whether <thread_db.h> has TD_NOTALLOC],
1014 gdb_cv_thread_db_h_has_td_notalloc,
1015 AC_TRY_COMPILE(
1016 [#include <thread_db.h>],
1017 [int i = TD_NOTALLOC;],
1018 gdb_cv_thread_db_h_has_td_notalloc=yes,
1019 gdb_cv_thread_db_h_has_td_notalloc=no
1020 )
1021 )
1022 fi
1023 if test "x$gdb_cv_thread_db_h_has_td_notalloc" = "xyes"; then
1024 AC_DEFINE(THREAD_DB_HAS_TD_NOTALLOC, 1,
1025 [Define if <thread_db.h> has the TD_NOTALLOC error code.])
1026 fi
1027
1028 dnl See if we have a sys/syscall header file that has __NR_tkill.
1029 if test "x$ac_cv_header_sys_syscall_h" = "xyes"; then
1030 AC_CACHE_CHECK([whether <sys/syscall.h> has __NR_tkill],
1031 gdb_cv_sys_syscall_h_has_tkill,
1032 AC_TRY_COMPILE(
1033 [#include <sys/syscall.h>],
1034 [int i = __NR_tkill;],
1035 gdb_cv_sys_syscall_h_has_tkill=yes,
1036 gdb_cv_sys_syscall_h_has_tkill=no
1037 )
1038 )
1039 fi
1040 dnl See if we can issue tkill syscall.
1041 if test "x$gdb_cv_sys_syscall_h_has_tkill" = "xyes" && test "x$ac_cv_func_syscall" = "xyes"; then
1042 AC_DEFINE(HAVE_TKILL_SYSCALL, 1,
1043 [Define if we can use the tkill syscall.])
1044 fi
1045
1046 dnl Handle optional features that can be enabled.
1047
1048 AC_ARG_WITH(sysroot,
1049 [ --with-sysroot[=DIR] Search for usr/lib et al within DIR.],
1050 [
1051 case ${with_sysroot} in
1052 yes) TARGET_SYSTEM_ROOT='${exec_prefix}/${target_alias}/sys-root' ;;
1053 *) TARGET_SYSTEM_ROOT=$with_sysroot ;;
1054 esac
1055
1056 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"$(TARGET_SYSTEM_ROOT)\"'
1057
1058 if test "x$exec_prefix" = xNONE; then
1059 if test "x$prefix" = xNONE; then
1060 test_prefix=/usr/local
1061 else
1062 test_prefix=$prefix
1063 fi
1064 else
1065 test_prefix=$exec_prefix
1066 fi
1067 case ${TARGET_SYSTEM_ROOT} in
1068 "${test_prefix}"|"${test_prefix}/"*|\
1069 '${exec_prefix}'|'${exec_prefix}/'*)
1070 t="$TARGET_SYSTEM_ROOT_DEFINE -DTARGET_SYSTEM_ROOT_RELOCATABLE"
1071 TARGET_SYSTEM_ROOT_DEFINE="$t"
1072 ;;
1073 esac
1074 ], [
1075 TARGET_SYSTEM_ROOT=
1076 TARGET_SYSTEM_ROOT_DEFINE='-DTARGET_SYSTEM_ROOT=\"\"'
1077 ])
1078 AC_SUBST(TARGET_SYSTEM_ROOT)
1079 AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
1080
1081 # NOTE: Don't add -Wall or -Wunused, they both include
1082 # -Wunused-parameter which reports bogus warnings.
1083 # NOTE: If you add to this list, remember to update
1084 # gdb/doc/gdbint.texinfo.
1085 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
1086 -Wformat -Wparentheses -Wpointer-arith -Wformat-nonliteral \
1087 -Wunused-label -Wunused-function"
1088
1089 # GCC supports -Wuninitialized only with -O or -On, n != 0.
1090 if test x${CFLAGS+set} = xset; then
1091 case "${CFLAGS}" in
1092 *"-O0"* ) ;;
1093 *"-O"* )
1094 build_warnings="${build_warnings} -Wuninitialized"
1095 ;;
1096 esac
1097 else
1098 build_warnings="${build_warnings} -Wuninitialized"
1099 fi
1100
1101 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
1102 # -Wunused-function -Wunused-variable -Wunused-value
1103 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
1104 # -Wcast-align -Wwrite-strings -Wconversion -Wstrict-prototypes
1105 # -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls
1106 # -Woverloaded-virtual -Winline -Werror"
1107 AC_ARG_ENABLE(build-warnings,
1108 [ --enable-build-warnings Enable build-time compiler warnings if gcc is used],
1109 [case "${enableval}" in
1110 yes) ;;
1111 no) build_warnings="-w";;
1112 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1113 build_warnings="${build_warnings} ${t}";;
1114 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1115 build_warnings="${t} ${build_warnings}";;
1116 *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1117 esac
1118 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1119 echo "Setting compiler warning flags = $build_warnings" 6>&1
1120 fi])dnl
1121 AC_ARG_ENABLE(gdb-build-warnings,
1122 [ --enable-gdb-build-warnings Enable GDB specific build-time compiler warnings if gcc is used],
1123 [case "${enableval}" in
1124 yes) ;;
1125 no) build_warnings="-w";;
1126 ,*) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1127 build_warnings="${build_warnings} ${t}";;
1128 *,) t=`echo "${enableval}" | sed -e "s/,/ /g"`
1129 build_warnings="${t} ${build_warnings}";;
1130 *) build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
1131 esac
1132 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
1133 echo "Setting GDB specific compiler warning flags = $build_warnings" 6>&1
1134 fi])dnl
1135 WARN_CFLAGS=""
1136 WERROR_CFLAGS=""
1137 if test "x${build_warnings}" != x -a "x$GCC" = xyes
1138 then
1139 AC_MSG_CHECKING(compiler warning flags)
1140 # Separate out the -Werror flag as some files just cannot be
1141 # compiled with it enabled.
1142 for w in ${build_warnings}; do
1143 case $w in
1144 -Werr*) WERROR_CFLAGS=-Werror ;;
1145 *) # Check that GCC accepts it
1146 saved_CFLAGS="$CFLAGS"
1147 CFLAGS="$CFLAGS $w"
1148 AC_TRY_COMPILE([],[],WARN_CFLAGS="${WARN_CFLAGS} $w",)
1149 CFLAGS="$saved_CFLAGS"
1150 esac
1151 done
1152 AC_MSG_RESULT(${WARN_CFLAGS}${WERROR_CFLAGS})
1153 fi
1154 AC_SUBST(WARN_CFLAGS)
1155 AC_SUBST(WERROR_CFLAGS)
1156
1157 # In the Cygwin environment, we need some additional flags.
1158 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
1159 [AC_EGREP_CPP(lose, [
1160 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
1161 lose
1162 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
1163
1164
1165 dnl Figure out which of the many generic ser-*.c files the _host_ supports.
1166 SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o"
1167 case ${host} in
1168 *go32* ) SER_HARDWIRE=ser-go32.o ;;
1169 *djgpp* ) SER_HARDWIRE=ser-go32.o ;;
1170 *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o" ;;
1171 esac
1172 AC_SUBST(SER_HARDWIRE)
1173
1174 # libreadline needs libuser32.a in a cygwin environment
1175 WIN32LIBS=
1176 if test x$gdb_cv_os_cygwin = xyes; then
1177 WIN32LIBS="-luser32"
1178 case "${target}" in
1179 *cygwin*) WIN32LIBS="$WIN32LIBS -limagehlp"
1180 ;;
1181 esac
1182 fi
1183
1184 # The ser-tcp.c module requires sockets.
1185 case ${host} in
1186 *mingw32*)
1187 AC_DEFINE(USE_WIN32API, 1,
1188 [Define if we should use the Windows API, instead of the
1189 POSIX API. On Windows, we use the Windows API when
1190 building for MinGW, but the POSIX API when building
1191 for Cygwin.])
1192 WIN32LIBS="$WIN32LIBS -lws2_32"
1193 ;;
1194 esac
1195 AC_SUBST(WIN32LIBS)
1196
1197 LIBGUI="../libgui/src/libgui.a"
1198 GUI_CFLAGS_X="-I${srcdir}/../libgui/src"
1199 AC_SUBST(LIBGUI)
1200 AC_SUBST(GUI_CFLAGS_X)
1201
1202 WIN32LDAPP=
1203 AC_SUBST(WIN32LIBS)
1204 AC_SUBST(WIN32LDAPP)
1205
1206 case "${host}" in
1207 *-*-cygwin*)
1208 configdir="win"
1209 ;;
1210 *)
1211 configdir="unix"
1212 ;;
1213 esac
1214
1215 GDBTKLIBS=
1216 if test "${enable_gdbtk}" = "yes"; then
1217
1218 # Gdbtk must have an absolute path to srcdir in order to run
1219 # properly when not installed.
1220 here=`pwd`
1221 cd ${srcdir}
1222 GDBTK_SRC_DIR=`pwd`
1223 cd $here
1224
1225 CY_AC_PATH_TCLCONFIG
1226 if test -z "${no_tcl}"; then
1227 CY_AC_LOAD_TCLCONFIG
1228 CY_AC_PATH_TKCONFIG
1229
1230 # now look for Tcl library stuff
1231
1232 tcldir="../tcl/${configdir}/"
1233
1234 TCL_DEPS="${tcldir}${TCL_LIB_FILE}"
1235
1236 # If $no_tk is nonempty, then we can't do Tk, and there is no
1237 # point to doing Tcl.
1238 if test -z "${no_tk}"; then
1239 CY_AC_LOAD_TKCONFIG
1240 CY_AC_PATH_TCLH
1241 CY_AC_PATH_TKH
1242 CY_AC_PATH_ITCLH
1243 CY_AC_PATH_ITKH
1244
1245
1246 # now look for Tk library stuff
1247
1248 tkdir="../tk/${configdir}/"
1249
1250 TK_DEPS="${tkdir}${TK_LIB_FILE}"
1251
1252 # now look for Itcl library stuff
1253
1254 CY_AC_PATH_ITCLCONFIG
1255 if test -z "${no_itcl}"; then
1256 CY_AC_LOAD_ITCLCONFIG
1257
1258 ITCLLIB="${ITCL_BUILD_LIB_SPEC}"
1259 ITCL_DEPS="${ITCL_LIB_FULL_PATH}"
1260 fi
1261
1262
1263 # now look for Itk library stuff
1264 CY_AC_PATH_ITKCONFIG
1265 if test -z "${no_itcl}"; then
1266 CY_AC_LOAD_ITKCONFIG
1267
1268 ITKLIB="${ITK_BUILD_LIB_SPEC}"
1269 ITK_DEPS="${ITK_LIB_FULL_PATH}"
1270 fi
1271
1272 ENABLE_CFLAGS="${ENABLE_CFLAGS} \$(SUBDIR_GDBTK_CFLAGS)"
1273
1274 # Include some libraries that Tcl and Tk want.
1275 TCL_LIBS='$(LIBGUI) $(ITCL) $(ITK) $(TK) $(TCL) $(X11_LDFLAGS) $(X11_LIBS)'
1276 # Yes, the ordering seems wrong here. But it isn't.
1277 # TK_LIBS is the list of libraries that need to be linked
1278 # after Tcl/Tk. Note that this isn't put into LIBS. If it
1279 # were in LIBS then any link tests after this point would
1280 # try to include things like `$(LIBGUI)', which wouldn't work.
1281 GDBTKLIBS="${TCL_LIBS} ${TK_LIBS}"
1282
1283 CONFIG_OBS="${CONFIG_OBS} \$(SUBDIR_GDBTK_OBS)"
1284 CONFIG_DEPS="${CONFIG_DEPS} \$(SUBDIR_GDBTK_DEPS)"
1285 CONFIG_SRCS="${CONFIG_SRCS} \$(SUBDIR_GDBTK_SRCS)"
1286 CONFIG_ALL="${CONFIG_ALL} all-gdbtk"
1287 CONFIG_CLEAN="${CONFIG_CLEAN} clean-gdbtk"
1288 CONFIG_INSTALL="${CONFIG_INSTALL} install-gdbtk"
1289 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-gdbtk"
1290
1291 if test x$gdb_cv_os_cygwin = xyes; then
1292 WIN32LIBS="${WIN32LIBS} -lshell32 -lgdi32 -lcomdlg32 -ladvapi32"
1293 WIN32LDAPP="-Wl,--subsystem,console"
1294 CONFIG_OBS="${CONFIG_OBS} gdbres.o"
1295 fi
1296 fi
1297 fi
1298
1299 AC_CONFIG_SUBDIRS(gdbtk)
1300 fi
1301
1302 AC_SUBST(X_CFLAGS)
1303 AC_SUBST(X_LDFLAGS)
1304 AC_SUBST(X_LIBS)
1305 AC_SUBST(TCL_DEPS)
1306 AC_SUBST(TK_DEPS)
1307 AC_SUBST(ITCLLIB)
1308 AC_SUBST(ITCL_DEPS)
1309 AC_SUBST(ITKLIB)
1310 AC_SUBST(ITK_DEPS)
1311 AC_SUBST(GDBTKLIBS)
1312 AC_SUBST(GDBTK_CFLAGS)
1313 AC_SUBST(GDBTK_SRC_DIR)
1314
1315 AC_PATH_X
1316
1317 # Check whether we should enable the TUI, but only do so if we really
1318 # can.
1319 if test x"$enable_tui" = xyes; then
1320 if test -d $srcdir/tui; then
1321 if test "$ac_cv_search_waddstr" != no; then
1322 CONFIG_OBS="$CONFIG_OBS \$(SUBDIR_TUI_OBS)"
1323 CONFIG_DEPS="$CONFIG_DEPS \$(SUBDIR_TUI_DEPS)"
1324 CONFIG_SRCS="$CONFIG_SRCS \$(SUBDIR_TUI_SRCS)"
1325 CONFIG_INITS="$CONFIG_INITS \$(SUBDIR_TUI_INITS)"
1326 ENABLE_CFLAGS="$ENABLE_CFLAGS \$(SUBDIR_TUI_CFLAGS)"
1327 CONFIG_ALL="${CONFIG_ALL} all-tui"
1328 CONFIG_CLEAN="${CONFIG_CLEAN} clean-tui"
1329 CONFIG_INSTALL="${CONFIG_INSTALL} install-tui"
1330 CONFIG_UNINSTALL="${CONFIG_UNINSTALL} uninstall-tui"
1331 else
1332 AC_MSG_WARN([no enhanced curses library found; disabling TUI])
1333 fi
1334 fi
1335 fi
1336
1337 # Unlike the sim directory, whether a simulator is linked is controlled by
1338 # presence of a SIM= and a SIM_OBS= definition in the target '.mt' file.
1339 # This code just checks for a few cases where we'd like to ignore those
1340 # definitions, even when they're present in the '.mt' file. These cases
1341 # are when --disable-sim is specified, or if the simulator directory is
1342 # not part of the source tree.
1343 #
1344 AC_ARG_ENABLE(sim,
1345 [ --enable-sim Link gdb with simulator],
1346 [echo "enable_sim = $enable_sim";
1347 echo "enableval = ${enableval}";
1348 case "${enableval}" in
1349 yes) ignore_sim=false ;;
1350 no) ignore_sim=true ;;
1351 *) ignore_sim=false ;;
1352 esac],
1353 [ignore_sim=false])
1354
1355 if test ! -d "${srcdir}/../sim"; then
1356 ignore_sim=true
1357 fi
1358
1359 if test "${ignore_sim}" = "true"; then
1360 IGNORE_SIM="SIM="
1361 IGNORE_SIM_OBS="SIM_OBS="
1362 else
1363 IGNORE_SIM=""
1364 IGNORE_SIM_OBS=""
1365 AC_DEFINE(WITH_SIM)
1366 fi
1367 AC_SUBST(IGNORE_SIM)
1368 AC_SUBST(IGNORE_SIM_OBS)
1369
1370 AC_SUBST(ENABLE_CFLAGS)
1371 AC_SUBST(PROFILE_CFLAGS)
1372
1373 AC_SUBST(CONFIG_OBS)
1374 AC_SUBST(CONFIG_DEPS)
1375 AC_SUBST(CONFIG_SRCS)
1376 AC_SUBST(CONFIG_ALL)
1377 AC_SUBST(CONFIG_CLEAN)
1378 AC_SUBST(CONFIG_INSTALL)
1379 AC_SUBST(CONFIG_UNINSTALL)
1380
1381 # List of host floatformats.
1382 AC_DEFINE_UNQUOTED(GDB_HOST_FLOAT_FORMAT,$gdb_host_float_format,[Host float floatformat])
1383 AC_DEFINE_UNQUOTED(GDB_HOST_DOUBLE_FORMAT,$gdb_host_double_format,[Host double floatformat])
1384 AC_DEFINE_UNQUOTED(GDB_HOST_LONG_DOUBLE_FORMAT,$gdb_host_long_double_format,[Host long double floatformat])
1385
1386 # target_subdir is used by the testsuite to find the target libraries.
1387 target_subdir=
1388 if test "${host}" != "${target}"; then
1389 target_subdir="${target_alias}/"
1390 fi
1391 AC_SUBST(target_subdir)
1392
1393 frags=
1394 if test "${target}" = "${host}"; then
1395 host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
1396 if test ! -f ${host_makefile_frag}; then
1397 AC_MSG_ERROR("*** Gdb does not support native target ${host}")
1398 fi
1399 frags="$frags $host_makefile_frag"
1400 else
1401 host_makefile_frag=/dev/null
1402 fi
1403
1404 target_makefile_frag=${srcdir}/config/${gdb_target_cpu}/${gdb_target}.mt
1405 if test ! -f ${target_makefile_frag}; then
1406 AC_MSG_ERROR("*** Gdb does not support target ${target}")
1407 fi
1408 frags="$frags $target_makefile_frag"
1409
1410 AC_SUBST_FILE(host_makefile_frag)
1411 AC_SUBST_FILE(target_makefile_frag)
1412 AC_SUBST(frags)
1413
1414 changequote(,)dnl
1415 hostfile=`sed -n '
1416 s/XM_FILE[ ]*=[ ]*\([^ ]*\)/\1/p
1417 ' ${host_makefile_frag}`
1418
1419 targetfile=`sed -n '
1420 s/DEPRECATED_TM_FILE[ ]*=[ ]*\([^ ]*\)/\1/p
1421 ' ${target_makefile_frag}`
1422
1423 if test "${target}" = "${host}"; then
1424 # We pick this up from the host configuration file (.mh) because we
1425 # do not have a native configuration Makefile fragment.
1426 nativefile=`sed -n '
1427 s/NAT_FILE[ ]*=[ ]*\([^ ]*\)/\1/p
1428 ' ${host_makefile_frag}`
1429 fi
1430 changequote([,])
1431
1432 if test x"${gdb_osabi}" != x ; then
1433 AC_DEFINE_UNQUOTED(GDB_OSABI_DEFAULT, $gdb_osabi,
1434 [Define to the default OS ABI for this configuration.])
1435 fi
1436
1437 # Enable multi-ice-gdb-server.
1438 AC_ARG_ENABLE(multi-ice,
1439 [ --enable-multi-ice build the multi-ice-gdb-server],
1440 [case $enableval in
1441 yes | no)
1442 ;;
1443 *) AC_MSG_ERROR([bad value $enableval for --enable-multi-ice]) ;;
1444 esac])
1445 if test "x$enable_multi_ice" = xyes; then
1446 AC_CONFIG_SUBDIRS(multi-ice)
1447 fi
1448
1449 # We only build gdbserver automatically if host and target are the same.
1450 if test "x$target" = "x$host"; then
1451 AC_MSG_CHECKING(whether gdbserver is supported on this host)
1452 if test "x$build_gdbserver" = xyes; then
1453 AC_MSG_RESULT(yes)
1454 AC_CONFIG_SUBDIRS(gdbserver)
1455 else
1456 AC_MSG_RESULT(no)
1457 fi
1458 fi
1459
1460 # We build rdi-share on ARM-based targets, as instructed by configure.tgt.
1461 if test "x$build_rdi_share" = xyes; then
1462 AC_CONFIG_SUBDIRS(rdi-share)
1463 fi
1464
1465 # We configure the nlm subdirectory on netware targets, as instructed
1466 # by configure.tgt.
1467 if test "x$build_nlm" = xyes; then
1468 AC_CONFIG_SUBDIRS(nlm)
1469 fi
1470
1471 # If hostfile (XM_FILE) and/or targetfile (DEPRECATED_TM_FILE) and/or
1472 # nativefile (NAT_FILE) is not set in config/*/*.m[ht] files, we link
1473 # to an empty version.
1474
1475 files=
1476 links=
1477
1478 rm -f xm.h
1479 xm_h=""
1480 if test "${hostfile}" != ""; then
1481 xm_h=xm.h
1482 case "${hostfile}" in
1483 xm-*.h ) GDB_XM_FILE="config/${gdb_host_cpu}/${hostfile}" ;;
1484 * ) GDB_XM_FILE="${hostfile}"
1485 esac
1486 files="${files} ${GDB_XM_FILE}"
1487 links="${links} xm.h"
1488 AC_DEFINE_UNQUOTED(GDB_XM_FILE, "${GDB_XM_FILE}")
1489 fi
1490 AC_SUBST(xm_h)
1491
1492 rm -f tm.h
1493 tm_h=""
1494 if test "${targetfile}" != ""; then
1495 tm_h=tm.h
1496 case "${targetfile}" in
1497 tm-*.h ) GDB_TM_FILE="config/${gdb_target_cpu}/${targetfile}" ;;
1498 * ) GDB_TM_FILE="${targetfile}"
1499 esac
1500 files="${files} ${GDB_TM_FILE}"
1501 links="${links} tm.h"
1502 AC_DEFINE_UNQUOTED(GDB_TM_FILE, "${GDB_TM_FILE}")
1503 fi
1504 AC_SUBST(tm_h)
1505
1506 rm -f nm.h
1507 nm_h=""
1508 if test "${nativefile}" != ""; then
1509 nm_h=nm.h
1510 case "${nativefile}" in
1511 nm-*.h ) GDB_NM_FILE="config/${gdb_host_cpu}/${nativefile}" ;;
1512 * ) GDB_NM_FILE="${nativefile}"
1513 esac
1514 files="${files} ${GDB_NM_FILE}"
1515 links="${links} nm.h"
1516 AC_DEFINE_UNQUOTED(GDB_NM_FILE, "${GDB_NM_FILE}")
1517 fi
1518 AC_SUBST(nm_h)
1519
1520 AC_LINK_FILES($files, $links)
1521
1522 dnl Check for exe extension set on certain hosts (e.g. Win32)
1523 AC_EXEEXT
1524
1525 dnl Detect the character set used by this host.
1526
1527 dnl At the moment, we just assume it's ISO-8859-1 (which is a
1528 dnl superset of ASCII containing the characters needed for French,
1529 dnl German, Spanish, Italian, and possibly others), but if were
1530 dnl *were* to support any host character sets other than ISO-8859-1,
1531 dnl here's where we'd detect it.
1532 AC_DEFINE(GDB_DEFAULT_HOST_CHARSET, "ISO-8859-1",
1533 [Define to be a string naming the default host character set.])
1534
1535 AM_ICONV
1536
1537 AC_OUTPUT(Makefile .gdbinit:gdbinit.in,
1538 [
1539 dnl Autoconf doesn't provide a mechanism for modifying definitions
1540 dnl provided by makefile fragments.
1541 dnl
1542
1543 changequote(,)dnl
1544 sed -e '/^DEPRECATED_TM_FILE[ ]*=/s,^DEPRECATED_TM_FILE[ ]*=[ ]*,&config/'"${gdb_target_cpu}"'/,
1545 /^XM_FILE[ ]*=/s,^XM_FILE[ ]*=[ ]*,&config/'"${gdb_host_cpu}"'/,
1546 /^NAT_FILE[ ]*=/s,^NAT_FILE[ ]*=[ ]*,&config/'"${gdb_host_cpu}"'/,' <Makefile >Makefile.tmp
1547 mv -f Makefile.tmp Makefile
1548 changequote([,])dnl
1549
1550
1551 case x$CONFIG_HEADERS in
1552 xconfig.h:config.in)
1553 echo > stamp-h ;;
1554 esac
1555 ],
1556 [
1557 gdb_host_cpu=$gdb_host_cpu
1558 gdb_target_cpu=$gdb_target_cpu
1559 nativefile=$nativefile
1560 ])
1561
1562 exit 0
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