gdb/configure.in

   1 dnl Autoconf configure script for GDB, the GNU debugger.
   2 dnl Copyright 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
   3 dnl
   4 dnl This file is part of GDB.
   5 dnl
   6 dnl This program is free software; you can redistribute it and/or modify
   7 dnl it under the terms of the GNU General Public License as published by
   8 dnl the Free Software Foundation; either version 2 of the License, or
   9 dnl (at your option) any later version.
  10 dnl
  11 dnl This program is distributed in the hope that it will be useful,
  12 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 dnl GNU General Public License for more details.
  15 dnl
  16 dnl You should have received a copy of the GNU General Public License
  17 dnl along with this program; if not, write to the Free Software
  18 dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19
  20 dnl Process this file with autoconf to produce a configure script.
  21
  22 AC_PREREQ(2.13)dnl
  23 AC_INIT(main.c)
  24 AC_CONFIG_HEADER(config.h:config.in)
  25
  26 AC_PROG_CC
  27 AC_AIX
  28 AC_ISC_POSIX
  29 AM_PROG_CC_STDC
  30
  31 AC_CONFIG_AUX_DIR(`cd $srcdir;pwd`/..)
  32 AC_CANONICAL_SYSTEM
  33
  34 dnl gdb doesn't use gettext, but bfd does.  We call this to ensure we
  35 dnl link with the correct libraries.
  36 ALL_LINGUAS=
  37 CY_GNU_GETTEXT
  38
  39 dnl List of object files added by configure.
  40
  41 CONFIG_OBS=
  42 CONFIG_DEPS=
  43 CONFIG_SRCS=
  44
  45 configdirs="doc testsuite"
  46
  47 AC_ARG_ENABLE(multi-ice,
  48 [  --enable-multi-ice            Build the multi-ice-gdb-server],
  49 [case "${enableval}" in
  50     yes ) enable_multi_ice="yes" ;;
  51     no)  enable_multi_ice="no" ;;
  52     *) AC_MSG_ERROR(Bad value for --enable-multi-ice: ${enableval}) ;;
  53   esac
  54 ])
  55
  56 if test "${enable_multi_ice}" = "yes"; then
  57   configdirs="${configdirs} multi-ice"
  58 fi
  59
  60 dnl
  61 changequote(,)dnl
  62
  63 . ${srcdir}/configure.host
  64
  65 . ${srcdir}/configure.tgt
  66
  67 dnl
  68 changequote([,])dnl
  69
  70 AC_PROG_AWK
  71 AC_PROG_INSTALL
  72 AC_CHECK_TOOL(AR, ar)
  73 AC_CHECK_TOOL(RANLIB, ranlib, :)
  74 AC_PROG_YACC
  75
  76 AC_ARG_PROGRAM
  77
  78 AC_TYPE_SIGNAL
  79
  80 AC_HEADER_STDC
  81
  82 AC_CHECK_HEADERS(ctype.h curses.h endian.h link.h thread_db.h proc_service.h \
  83         memory.h objlist.h ptrace.h sgtty.h stddef.h stdlib.h \
  84         string.h sys/procfs.h sys/ptrace.h sys/reg.h stdint.h \
  85         term.h termio.h termios.h unistd.h wait.h sys/wait.h \
  86         wchar.h wctype.h asm/debugreg.h sys/debugreg.h sys/select.h \
  87         time.h sys/ioctl.h)
  88 AC_HEADER_STAT
  89
  90 AC_C_CONST
  91
  92 AC_CHECK_FUNCS(setpgid sbrk sigaction isascii bzero bcopy btowc poll sigprocmask)
  93 AC_FUNC_ALLOCA
  94
  95 dnl See if ptrace.h provides the PTRACE_GETXFPREGS request.
  96 dnl PTRACE_GETXFPREGS is a Cygnus invention, since we wrote our own
  97 dnl Linux kernel patch for SSE support.  That patch may or may not
  98 dnl actually make it into the official distribution.  If you find that
  99 dnl years have gone by since this configure test was added, and Linux
 100 dnl isn't using PTRACE_GETXFPREGS, that means that our patch didn't
 101 dnl make it, and you can delete this code.
 102 AC_MSG_CHECKING(for PTRACE_GETXFPREGS)
 103 AC_CACHE_VAL(gdb_cv_have_ptrace_getxfpregs,
 104 [AC_TRY_COMPILE([#include <sys/ptrace.h>],
 105                 [PTRACE_GETXFPREGS;],
 106                 [gdb_cv_have_ptrace_getxfpregs=yes],
 107                 [gdb_cv_have_ptrace_getxfpregs=no])])
 108 AC_MSG_RESULT($gdb_cv_have_ptrace_getxfpregs)
 109 if test $gdb_cv_have_ptrace_getxfpregs = yes; then
 110   AC_DEFINE(HAVE_PTRACE_GETXFPREGS)
 111 fi
 112
 113 AC_CHECK_LIB(socket, socketpair)
 114 AC_CHECK_FUNCS(socketpair)
 115
 116
 117 BFD_NEED_DECLARATION(malloc)
 118 BFD_NEED_DECLARATION(realloc)
 119 BFD_NEED_DECLARATION(free)
 120 BFD_NEED_DECLARATION(strerror)
 121 BFD_NEED_DECLARATION(strdup)
 122 BFD_NEED_DECLARATION(strstr)
 123
 124
 125 # The following save_state_t checkery is only necessary for HPUX
 126 # versions earlier than 10.20.  When those fade from memory, this
 127 # could be expunged. --jsm 1999-03-22
 128
 129 AC_MSG_CHECKING(for HPUX save_state structure)
 130 AC_EGREP_HEADER(save_state_t, machine/save_state.h,
 131                 gdb_cv_hpux_savestate=yes, gdb_cv_hpux_savestate=no)
 132 AC_EGREP_HEADER(ss_wide, machine/save_state.h, gdb_cv_hpux_sswide=yes,
 133                 gdb_cv_hpux_sswide=no)
 134 if test $gdb_cv_hpux_savestate = yes
 135 then
 136   AC_DEFINE(HAVE_STRUCT_SAVE_STATE_T, 1)
 137 fi
 138 if test $gdb_cv_hpux_sswide = yes
 139 then
 140   AC_DEFINE(HAVE_STRUCT_MEMBER_SS_WIDE, 1)
 141 fi
 142 AC_MSG_RESULT($gdb_cv_hpux_sswide)
 143
 144
 145 # If we are configured native on GNU/Linux, work around problems with
 146 # sys/procfs.h
 147 # Also detect which type of /proc is in use, such as for Unixware or Solaris.
 148
 149 if test "${target}" = "${host}"; then
 150   case "${host}" in
 151   i[[3456]]86-*-linux*)
 152         AC_DEFINE(START_INFERIOR_TRAPS_EXPECTED,2)
 153         AC_DEFINE(sys_quotactl)
 154         ;;
 155   *-*-unixware* | *-*-sysv4.2uw2.* | *-*-sysv4.2uw7.*)
 156       AC_DEFINE(NEW_PROC_API)
 157       ;;
 158   # FIXME: we would like to define NEW_PROC_API for all versions of
 159   # Solaris from 2.6 on... but it isn't quite working yet.  Seems
 160   # to work on sparc 2.6, so let's try it out there.
 161   sparc-sun-solaris2.6)
 162       AC_DEFINE(NEW_PROC_API)
 163       ;;
 164   esac
 165 fi
 166
 167 if test "$ac_cv_header_sys_procfs_h" = yes; then
 168   BFD_HAVE_SYS_PROCFS_TYPE(pstatus_t)
 169   BFD_HAVE_SYS_PROCFS_TYPE(prrun_t)
 170   BFD_HAVE_SYS_PROCFS_TYPE(gregset_t)
 171   BFD_HAVE_SYS_PROCFS_TYPE(fpregset_t)
 172
 173   dnl Check for PIOCSET ioctl entry
 174
 175   AC_MSG_CHECKING(for PIOCSET ioctl entry in sys/procfs.h)
 176   AC_CACHE_VAL(gdb_cv_have_procfs_piocset,
 177   [AC_TRY_COMPILE([#include <unistd.h>
 178 #include <sys/types.h>
 179 #include <sys/procfs.h>
 180 ], [
 181     int dummy;;
 182     dummy = ioctl(0, PIOCSET, &dummy);
 183   ],
 184   gdb_cv_have_procfs_piocset=yes, gdb_cv_have_procfs_piocset=no)])
 185   AC_MSG_RESULT($gdb_cv_have_procfs_piocset)
 186   if test $gdb_cv_have_procfs_piocset = yes; then
 187     AC_DEFINE(HAVE_PROCFS_PIOCSET)
 188   fi
 189 fi
 190
 191 dnl See if host has libm.  This is usually needed by simulators.
 192 AC_CHECK_LIB(m, main)
 193
 194 dnl Solaris puts wctype in /usr/lib/libw.a before Solaris 2.6.
 195 dnl
 196 dnl A bug in GNU ld 2.9.1 causes a problem if we link in -lw
 197 dnl under Solaris 2.6 because it is some funky empty library.
 198 dnl So only link in libw if we have to.
 199 AC_CHECK_LIB(c, wctype,: ,AC_CHECK_LIB(w, wctype))
 200
 201 dnl See if compiler supports "long long" type.
 202
 203 AC_MSG_CHECKING(for long long support in compiler)
 204 AC_CACHE_VAL(gdb_cv_c_long_long,
 205 [AC_TRY_COMPILE(, [
 206   extern long long foo;
 207   switch (foo & 2) { case 0: return 1; }
 208 ],
 209 gdb_cv_c_long_long=yes, gdb_cv_c_long_long=no)])
 210 AC_MSG_RESULT($gdb_cv_c_long_long)
 211 if test $gdb_cv_c_long_long = yes; then
 212   AC_DEFINE(CC_HAS_LONG_LONG)
 213 fi
 214
 215 dnl See if the compiler and runtime support printing long long
 216
 217 AC_MSG_CHECKING(for long long support in printf)
 218 AC_CACHE_VAL(gdb_cv_printf_has_long_long,
 219 [AC_TRY_RUN([
 220 int main () {
 221   char buf[32];
 222   long long l = 0;
 223   l = (l << 16) + 0x0123;
 224   l = (l << 16) + 0x4567;
 225   l = (l << 16) + 0x89ab;
 226   l = (l << 16) + 0xcdef;
 227   sprintf (buf, "0x%016llx", l);
 228   return (strcmp ("0x0123456789abcdef", buf));
 229 }],
 230 gdb_cv_printf_has_long_long=yes,
 231 gdb_cv_printf_has_long_long=no,
 232 gdb_cv_printf_has_long_long=no)])
 233 if test $gdb_cv_printf_has_long_long = yes; then
 234   AC_DEFINE(PRINTF_HAS_LONG_LONG)
 235 fi
 236 AC_MSG_RESULT($gdb_cv_printf_has_long_long)
 237
 238 dnl See if compiler supports "long double" type.  Can't use AC_C_LONG_DOUBLE
 239 dnl because autoconf complains about cross-compilation issues.  However, this
 240 dnl code uses the same variables as the macro for compatibility.
 241
 242 AC_MSG_CHECKING(for long double support in compiler)
 243 AC_CACHE_VAL(ac_cv_c_long_double,
 244 [AC_TRY_COMPILE(, [long double foo;],
 245 ac_cv_c_long_double=yes, ac_cv_c_long_double=no)])
 246 AC_MSG_RESULT($ac_cv_c_long_double)
 247 if test $ac_cv_c_long_double = yes; then
 248   AC_DEFINE(HAVE_LONG_DOUBLE)
 249 fi
 250
 251 dnl See if the compiler and runtime support printing long doubles
 252
 253 AC_MSG_CHECKING(for long double support in printf)
 254 AC_CACHE_VAL(gdb_cv_printf_has_long_double,
 255 [AC_TRY_RUN([
 256 int main () {
 257   char buf[16];
 258   long double f = 3.141592653;
 259   sprintf (buf, "%Lg", f);
 260   return (strncmp ("3.14159", buf, 7));
 261 }],
 262 gdb_cv_printf_has_long_double=yes,
 263 gdb_cv_printf_has_long_double=no,
 264 gdb_cv_printf_has_long_double=no)])
 265 if test $gdb_cv_printf_has_long_double = yes; then
 266   AC_DEFINE(PRINTF_HAS_LONG_DOUBLE)
 267 fi
 268 AC_MSG_RESULT($gdb_cv_printf_has_long_double)
 269
 270 dnl See if the compiler and runtime support scanning long doubles
 271
 272 AC_MSG_CHECKING(for long double support in scanf)
 273 AC_CACHE_VAL(gdb_cv_scanf_has_long_double,
 274 [AC_TRY_RUN([
 275 int main () {
 276   char *buf = "3.141592653";
 277   long double f = 0;
 278   sscanf (buf, "%Lg", &f);
 279   return !(f > 3.14159 && f < 3.14160);
 280 }],
 281 gdb_cv_scanf_has_long_double=yes,
 282 gdb_cv_scanf_has_long_double=no,
 283 gdb_cv_scanf_has_long_double=no)])
 284 if test $gdb_cv_scanf_has_long_double = yes; then
 285   AC_DEFINE(SCANF_HAS_LONG_DOUBLE)
 286 fi
 287 AC_MSG_RESULT($gdb_cv_scanf_has_long_double)
 288
 289 AC_FUNC_MMAP
 290
 291 dnl See if thread_db library is around for Solaris thread debugging.  Note that
 292 dnl we must explicitly test for version 1 of the library because version 0
 293 dnl (present on Solaris 2.4 or earlier) doesn't have the same API.
 294
 295 dnl Note that we only want this if we are both native (host == target), and
 296 dnl not doing a canadian cross build (build == host).
 297
 298 if test ${build} = ${host} -a ${host} = ${target} ; then
 299    case ${host_os} in
 300    hpux*)
 301       AC_MSG_CHECKING(for HPUX/OSF thread support)
 302       if test -f /usr/include/dce/cma_config.h ; then
 303          if test "$GCC" = "yes" ; then
 304             AC_MSG_RESULT(yes)
 305             AC_DEFINE(HAVE_HPUX_THREAD_SUPPORT)
 306             CONFIG_OBS="${CONFIG_OJS} hpux-thread.o"
 307             CONFIG_SRCS="${CONFIG_SRCS} hpux-thread.c"
 308          else
 309             AC_MSG_RESULT(no (suppressed because you are not using GCC))
 310          fi
 311       else
 312          AC_MSG_RESULT(no)
 313       fi
 314       ;;
 315    solaris*)
 316       AC_MSG_CHECKING(for Solaris thread debugging library)
 317       if test -f /usr/lib/libthread_db.so.1 ; then
 318          AC_MSG_RESULT(yes)
 319          AC_DEFINE(HAVE_THREAD_DB_LIB)
 320          CONFIG_OBS="${CONFIG_OBS} sol-thread.o"
 321          CONFIG_SRCS="${CONFIG_SRCS} sol-thread.c"
 322          AC_CHECK_LIB(dl, dlopen)
 323          if test "$GCC" = "yes" ; then
 324             # The GNU linker requires the -export-dynamic option to make
 325             # all symbols visible in the dynamic symbol table.
 326             hold_ldflags=$LDFLAGS
 327             AC_MSG_CHECKING(for the ld -export-dynamic flag)
 328             LDFLAGS="${LDFLAGS} -Wl,-export-dynamic"
 329             AC_TRY_LINK(, [int i;], found=yes, found=no)
 330             LDFLAGS=$hold_ldflags
 331             AC_MSG_RESULT($found)
 332             if test $found = yes; then
 333                CONFIG_LDFLAGS="${CONFIG_LDFLAGS} -Wl,-export-dynamic"
 334             fi
 335          fi
 336          # Sun randomly tweaked the prototypes in <proc_service.h>
 337          # at one point.
 338          AC_MSG_CHECKING(if <proc_service.h> is old)
 339          AC_CACHE_VAL(gdb_cv_proc_service_is_old,[
 340             AC_TRY_COMPILE([
 341                 #include <proc_service.h>
 342                 ps_err_e ps_pdwrite
 343                     (struct ps_prochandle*, psaddr_t, const void*, size_t);
 344             ],, gdb_cv_proc_service_is_old=no,
 345                 gdb_cv_proc_service_is_old=yes)
 346          ])
 347          AC_MSG_RESULT($gdb_cv_proc_service_is_old)
 348          if test $gdb_cv_proc_service_is_old = yes; then
 349             AC_DEFINE(PROC_SERVICE_IS_OLD)
 350          fi
 351       else
 352          AC_MSG_RESULT(no)
 353       fi
 354       ;;
 355    esac
 356    AC_SUBST(CONFIG_LDFLAGS)
 357 fi
 358
 359 dnl Handle optional features that can be enabled.
 360 ENABLE_CFLAGS=
 361
 362 AC_ARG_ENABLE(tui,
 363 [  --enable-tui            Enable full-screen terminal user interface],
 364 [
 365   case "${enable_tui}" in
 366     yes | no) ;;
 367     "")  enable_tui=yes ;;
 368     *)
 369       AC_MSG_ERROR(Bad value for --enable-tui: ${enableval})
 370     ;;
 371   esac
 372 ])
 373 case ${enable_tui} in
 374   "yes" )
 375     AC_DEFINE(TUI)
 376     BUILD_TUI=all-tui
 377     TUI_LIBRARY=tui/libtui.a
 378   ;;
 379   * )
 380     BUILD_TUI=
 381     TUI_LIBRARY=
 382   ;;
 383 esac
 384 AC_SUBST(BUILD_TUI)
 385 AC_SUBST(TUI_LIBRARY)
 386
 387 AC_ARG_ENABLE(netrom,
 388 [  --enable-netrom         Enable NetROM support],
 389 [case "${enableval}" in
 390 yes)    enable_netrom=yes ;;
 391 no)     enable_netrom=no ;;
 392 *)      AC_MSG_ERROR(bad value ${enableval} given for netrom option) ;;
 393 esac])
 394
 395 if test "${enable_netrom}" = "yes"; then
 396         CONFIG_OBS="${CONFIG_OBS} remote-nrom.o"
 397         CONFIG_SRCS="${CONFIG_SRCS} remote-nrom.c"
 398 fi
 399
 400 AC_ARG_ENABLE(build-warnings,
 401 [  --enable-build-warnings Enable build-time compiler warnings if gcc is used],
 402 [build_warnings="-Wall -Wpointer-arith -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations"
 403 case "${enableval}" in
 404   yes)  ;;
 405   no)   build_warnings="-w";;
 406   ,*)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
 407         build_warnings="${build_warnings} ${t}";;
 408   *,)   t=`echo "${enableval}" | sed -e "s/,/ /g"`
 409         build_warnings="${t} ${build_warnings}";;
 410   *)    build_warnings=`echo "${enableval}" | sed -e "s/,/ /g"`;;
 411 esac
 412 if test x"$silent" != x"yes" && test x"$build_warnings" != x""; then
 413   echo "Setting warning flags = $build_warnings" 6>&1
 414 fi
 415 WARN_CFLAGS=""
 416 WERROR_CFLAGS=""
 417 if test "x${build_warnings}" != x -a "x$GCC" = xyes
 418 then
 419   # Separate out the -Werror flag as some files just cannot be
 420   # compiled with it enabled.
 421   for w in ${build_warnings}; do
 422     case $w in
 423     -Werr*) WERROR_CFLAGS=-Werror ;;
 424     *) WARN_CFLAGS="${WARN_CFLAGS} $w"
 425     esac
 426   done
 427 fi],[build_warnings=""])dnl
 428
 429 AC_SUBST(WARN_CFLAGS)
 430 AC_SUBST(WERROR_CFLAGS)
 431
 432 MMALLOC_CFLAGS=
 433 MMALLOC=
 434 AC_SUBST(MMALLOC_CFLAGS)
 435 AC_SUBST(MMALLOC)
 436
 437 AC_ARG_WITH(mmalloc,
 438 [  --with-mmalloc          Use memory mapped malloc package],
 439 [case "${withval}" in
 440   yes)  want_mmalloc=true ;;
 441   no)   want_mmalloc=false;;
 442   *)    AC_MSG_ERROR(bad value ${withval} for GDB with-mmalloc option) ;;
 443 esac],[want_mmalloc=false])dnl
 444
 445 if test x$want_mmalloc = xtrue; then
 446    AC_DEFINE(USE_MMALLOC)
 447    AC_DEFINE(MMCHECK_FORCE)
 448    MMALLOC_CFLAGS="-I$srcdir/../mmalloc"
 449    MMALLOC='../mmalloc/libmmalloc.a'
 450 fi
 451
 452
 453 # In the Cygwin environment, we need some additional flags.
 454 AC_CACHE_CHECK([for cygwin], gdb_cv_os_cygwin,
 455 [AC_EGREP_CPP(lose, [
 456 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
 457 lose
 458 #endif],[gdb_cv_os_cygwin=yes],[gdb_cv_os_cygwin=no])])
 459
 460 DLLTOOL=${DLLTOOL-dlltool}
 461 WINDRES=${WINDRES-windres}
 462 AC_SUBST(DLLTOOL)
 463 AC_SUBST(WINDRES)
 464
 465 dnl Figure out which term library to use.
 466 if test x$gdb_host = xgo32; then
 467   TERM_LIB=
 468 else
 469 if test x$gdb_cv_os_cygwin = xyes; then
 470   TERM_LIB='`if test -r ../libtermcap/libtermcap.a; then echo ../libtermcap/libtermcap.a; else echo -ltermcap; fi`'
 471 else
 472   TERM_LIB=
 473   AC_CHECK_LIB(ncurses, tgetent, TERM_LIB=-lncurses,
 474     AC_CHECK_LIB(Hcurses, tgetent, TERM_LIB=-lHcurses,
 475       AC_CHECK_LIB(termlib, tgetent, TERM_LIB=-ltermlib,
 476         AC_CHECK_LIB(termcap, tgetent, TERM_LIB=-ltermcap,
 477           AC_CHECK_LIB(curses, tgetent, TERM_LIB=-lcurses,
 478             AC_CHECK_LIB(terminfo, tgetent, TERM_LIB=-lterminfo))))))
 479
 480   if test "x$TERM_LIB" = x
 481   then
 482     AC_MSG_ERROR(Could not find a term library, e.g. termcap or termlib!)
 483   fi
 484 fi
 485 fi
 486 AC_SUBST(TERM_LIB)
 487
 488 # libreadline needs libuser32.a in a cygwin environment
 489 WIN32LIBS=
 490 if test x$gdb_cv_os_cygwin = xyes; then
 491     WIN32LIBS="-luser32"
 492 fi
 493 AC_SUBST(WIN32LIBS)
 494
 495
 496 AC_PATH_X
 497
 498
 499 # Unlike the sim directory, whether a simulator is linked is controlled by
 500 # presence of a SIM= and a SIM_OBS= definition in the target '.mt' file.
 501 # This code just checks for a few cases where we'd like to ignore those
 502 # definitions, even when they're present in the '.mt' file.  These cases
 503 # are when --disable-sim is specified, or if the simulator directory is
 504 # not part of the soruce tree.
 505 #
 506 AC_ARG_ENABLE(sim,
 507 [  --enable-sim            Link gdb with simulator],
 508 [echo "enable_sim = $enable_sim";
 509  echo "enableval = ${enableval}";
 510  case "${enableval}" in
 511   yes) ignore_sim=false ;;
 512   no)  ignore_sim=true ;;
 513   *)   ignore_sim=false ;;
 514  esac],
 515 [ignore_sim=false])
 516
 517 if test ! -d "${srcdir}/../sim"; then
 518   ignore_sim=true
 519 fi
 520
 521 if test "${ignore_sim}" = "true"; then
 522     IGNORE_SIM="SIM="
 523     IGNORE_SIM_OBS="SIM_OBS="
 524 else
 525     IGNORE_SIM=""
 526     IGNORE_SIM_OBS=""
 527     AC_DEFINE(WITH_SIM)
 528 fi
 529 AC_SUBST(IGNORE_SIM)
 530 AC_SUBST(IGNORE_SIM_OBS)
 531
 532 AC_SUBST(ENABLE_CFLAGS)
 533
 534 AC_SUBST(CONFIG_OBS)
 535 AC_SUBST(CONFIG_DEPS)
 536 AC_SUBST(CONFIG_SRCS)
 537
 538 # Begin stuff to support --enable-shared
 539 AC_ARG_ENABLE(shared,
 540 [  --enable-shared         Use shared libraries],
 541 [case "${enableval}" in
 542   yes) shared=true ;;
 543   no)  shared=false ;;
 544   *) shared=true ;;
 545 esac])dnl
 546
 547 HLDFLAGS=
 548 HLDENV=
 549 # If we have shared libraries, try to set rpath reasonably.
 550 if test "${shared}" = "true"; then
 551   case "${host}" in
 552   *-*-hpux*)
 553     HLDFLAGS='-Wl,+s,+b,$(libdir)'
 554     ;;
 555   *-*-irix5* | *-*-irix6*)
 556     HLDFLAGS='-Wl,-rpath,$(libdir)'
 557     ;;
 558   *-*-linux*aout*)
 559     ;;
 560   *-*-linux* | *-pc-linux-gnu)
 561     HLDFLAGS='-Wl,-rpath,$(libdir)'
 562     ;;
 563   *-*-solaris*)
 564     HLDFLAGS='-R $(libdir)'
 565     ;;
 566   *-*-sysv4*)
 567     HLDENV='if test -z "$${LD_RUN_PATH}"; then LD_RUN_PATH=$(libdir); else LD_RUN_PATH=$${LD_RUN_PATH}:$(libdir); fi; export LD_RUN_PATH;'
 568     ;;
 569   esac
 570 fi
 571
 572 # On SunOS, if the linker supports the -rpath option, use it to
 573 # prevent ../bfd and ../opcodes from being included in the run time
 574 # search path.
 575 case "${host}" in
 576   *-*-sunos*)
 577     echo 'main () { }' > conftest.c
 578     ${CC} -o conftest -Wl,-rpath= conftest.c >/dev/null 2>conftest.t
 579     if grep 'unrecognized' conftest.t >/dev/null 2>&1; then
 580       :
 581     elif grep 'No such file' conftest.t >/dev/null 2>&1; then
 582       :
 583     elif grep 'do not mix' conftest.t >/dev/null 2>&1; then
 584       :
 585     elif grep 'some text already loaded' conftest.t >/dev/null 2>&1; then
 586       :
 587     elif test "${shared}" = "true"; then
 588       HLDFLAGS='-Wl,-rpath=$(libdir)'
 589     else
 590       HLDFLAGS='-Wl,-rpath='
 591     fi
 592     rm -f conftest.t conftest.c conftest
 593     ;;
 594 esac
 595 AC_SUBST(HLDFLAGS)
 596 AC_SUBST(HLDENV)
 597 # End stuff to support --enable-shared
 598
 599 # target_subdir is used by the testsuite to find the target libraries.
 600 target_subdir=
 601 if test "${host}" != "${target}"; then
 602     target_subdir="${target_alias}/"
 603 fi
 604 AC_SUBST(target_subdir)
 605
 606 frags=
 607 host_makefile_frag=${srcdir}/config/${gdb_host_cpu}/${gdb_host}.mh
 608 if test ! -f ${host_makefile_frag}; then
 609 AC_MSG_ERROR("*** Gdb does not support host ${host}")
 610 fi
 611 frags="$frags $host_makefile_frag"
 612
 613 target_makefile_frag=${srcdir}/config/${gdb_target_cpu}/${gdb_target}.mt
 614 if test ! -f ${target_makefile_frag}; then
 615 AC_MSG_ERROR("*** Gdb does not support target ${target}")
 616 fi
 617 frags="$frags $target_makefile_frag"
 618
 619 AC_SUBST_FILE(host_makefile_frag)
 620 AC_SUBST_FILE(target_makefile_frag)
 621 AC_SUBST(frags)
 622
 623 changequote(,)dnl
 624 hostfile=`sed -n '
 625 s/XM_FILE[      ]*=[    ]*\([^  ]*\)/\1/p
 626 ' ${host_makefile_frag}`
 627
 628 targetfile=`sed -n '
 629 s/TM_FILE[      ]*=[    ]*\([^  ]*\)/\1/p
 630 ' ${target_makefile_frag}`
 631
 632 # these really aren't orthogonal true/false values of the same condition,
 633 # but shells are slow enough that I like to reuse the test conditions
 634 # whenever possible
 635 if test "${target}" = "${host}"; then
 636 nativefile=`sed -n '
 637 s/NAT_FILE[     ]*=[    ]*\([^  ]*\)/\1/p
 638 ' ${host_makefile_frag}`
 639 # else
 640 # GDBserver is only useful in a "native" enviroment
 641 # configdirs=`echo $configdirs | sed 's/gdbserver//'`
 642 fi
 643 changequote([,])
 644
 645 SUBDIRS="doc testsuite nlm"
 646 if test "${enable_multi_ice}" = "yes"; then
 647   SUBDIRS="${SUBDIRS} multi-ice"
 648 fi
 649
 650 AC_SUBST(SUBDIRS)
 651
 652 # If hostfile (XM_FILE) and/or targetfile (TM_FILE) and/or nativefile
 653 # (NAT_FILE) is not set in config/*/*.m[ht] files, we don't make the
 654 # corresponding links.  But we have to remove the xm.h files and tm.h
 655 # files anyway, e.g. when switching from "configure host" to
 656 # "configure none".
 657
 658 files=
 659 links=
 660 rm -f xm.h
 661 if test "${hostfile}" != ""; then
 662 files="${files} config/${gdb_host_cpu}/${hostfile}"
 663 links="${links} xm.h"
 664 fi
 665 rm -f tm.h
 666 if test "${targetfile}" != ""; then
 667 files="${files} config/${gdb_target_cpu}/${targetfile}"
 668 links="${links} tm.h"
 669 fi
 670 rm -f nm.h
 671 if test "${nativefile}" != ""; then
 672 files="${files} config/${gdb_host_cpu}/${nativefile}"
 673 links="${links} nm.h"
 674 else
 675 # A cross-only configuration.
 676 files="${files} config/nm-empty.h"
 677 links="${links} nm.h"
 678 fi
 679
 680 AC_LINK_FILES($files, $links)
 681
 682 dnl Check for exe extension set on certain hosts (e.g. Win32)
 683 AC_EXEEXT
 684
 685 AC_CONFIG_SUBDIRS($configdirs)
 686 AC_OUTPUT(Makefile tui/Makefile .gdbinit:gdbinit.in,
 687 [
 688 dnl Autoconf doesn't provide a mechanism for modifying definitions
 689 dnl provided by makefile fragments.
 690 dnl
 691 if test "${nativefile}" = ""; then
 692 sed -e '/^NATDEPFILES[[         ]]*=[[  ]]*/s//# NATDEPFILES=/' \
 693         < Makefile > Makefile.tem
 694 mv -f Makefile.tem Makefile
 695 fi
 696
 697 changequote(,)dnl
 698 sed -e '/^TM_FILE[      ]*=/s,^TM_FILE[         ]*=[    ]*,&config/'"${gdb_target_cpu}"'/,
 699 /^XM_FILE[      ]*=/s,^XM_FILE[         ]*=[    ]*,&config/'"${gdb_host_cpu}"'/,
 700 /^NAT_FILE[     ]*=/s,^NAT_FILE[        ]*=[    ]*,&config/'"${gdb_host_cpu}"'/,' <Makefile >Makefile.tmp
 701 mv -f Makefile.tmp Makefile
 702 changequote([,])dnl
 703
 704
 705 case x$CONFIG_HEADERS in
 706 xconfig.h:config.in)
 707 echo > stamp-h ;;
 708 esac
 709 ],
 710 [
 711 gdb_host_cpu=$gdb_host_cpu
 712 gdb_target_cpu=$gdb_target_cpu
 713 nativefile=$nativefile
 714 ])
 715
 716 exit 0