configure.in

   1 #! /bin/bash
   2 ##############################################################################
   3
   4 ## This file is a shell script fragment that supplies the information
   5 ## necessary to tailor a template configure script into the configure
   6 ## script appropriate for this directory.  For more information, check
   7 ## any existing configure script.
   8
   9 ## Be warned, there are two types of configure.in files.  There are those
  10 ## used by Autoconf, which are macros which are expanded into a configure
  11 ## script by autoconf.  The other sort, of which this is one, is executed
  12 ## by Cygnus configure.
  13
  14 ## For more information on these two systems, check out the documentation
  15 ## for 'Autoconf' (autoconf.texi) and 'Configure' (configure.texi).
  16
  17 #   Copyright (C) 1992, 93, 94, 95, 1996 Free Software Foundation, Inc.
  18 #
  19 # This file is free software; you can redistribute it and/or modify it
  20 # under the terms of the GNU General Public License as published by
  21 # the Free Software Foundation; either version 2 of the License, or
  22 # (at your option) any later version.
  23 #
  24 # This program is distributed in the hope that it will be useful, but
  25 # WITHOUT ANY WARRANTY; without even the implied warranty of
  26 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  27 # General Public License for more details.
  28 #
  29 # You should have received a copy of the GNU General Public License
  30 # along with this program; if not, write to the Free Software
  31 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  32
  33 ##############################################################################
  34
  35 ### To add a new directory to the tree, first choose whether it is a target
  36 ### or a host dependent tool.  Then put it into the appropriate list
  37 ### (library or tools, host or target), doing a dependency sort.  For
  38 ### example, gdb requires that byacc (or bison) be built first, so it is in
  39 ### the ${host_tools} list after byacc and bison.
  40
  41
  42 # these libraries are used by various programs built for the host environment
  43 #
  44 host_libs="mmalloc libiberty opcodes bfd readline gash tcl tk tclX"
  45
  46 if [ "${enable_gdbgui}" = "yes" ] ; then
  47         host_libs="${host_libs} libgui"
  48 fi
  49
  50 # these tools are built for the host environment
  51 #
  52 host_tools="texinfo byacc flex bison binutils ld gas gcc gdb make patch
  53             prms send-pr gprof gdbtest tgas etc expect dejagnu sim
  54             m4 autoconf ispell grep diff rcs cvs fileutils shellutils
  55             textutils wdiff find emacs emacs19 uudecode hello tar gzip indent
  56             recode release sed utils guile perl apache inet"
  57
  58
  59 # these libraries are built for the target environment, and are built after
  60 # the host libraries and the host tools (which may be a cross compiler)
  61 #
  62 target_libs="target-libiberty target-libgloss target-newlib target-libio target-librx target-libstdc++ target-libg++"
  63
  64
  65 # these tools are built using the target libs, and are intended to run only
  66 # in the target environment
  67 #
  68 # note: any program that *uses* libraries that are in the "target_libs"
  69 # list belongs in this list.  those programs are also very likely
  70 # candidates for the "native_only" list which follows
  71 #
  72 target_tools="target-examples target-groff"
  73
  74 ################################################################################
  75
  76 ## These two lists are of directories that are to be removed from the
  77 ## ${configdirs} list for either cross-compilations or for native-
  78 ## compilations.  For example, it doesn't make that much sense to
  79 ## cross-compile Emacs, nor is it terribly useful to compile target-libiberty in
  80 ## a native environment.
  81
  82 # directories to be built in the native environment only
  83 #
  84 native_only="autoconf cvs emacs emacs19 fileutils find grep gzip hello
  85              indent ispell m4 rcs recode sed shellutils tar textutils gash
  86              uudecode wdiff gprof target-groff guile perl apache inet"
  87
  88 # directories to be built in a cross environment only
  89 #
  90 cross_only="target-libiberty target-libgloss target-newlib"
  91
  92 ## All tools belong in one of the four categories, and are assigned above
  93 ## We assign ${configdirs} this way to remove all embedded newlines.  This
  94 ## is important because configure will choke if they ever get through.
  95 ## ${configdirs} is directories we build using the host tools.
  96 ## ${target_configdirs} is directories we build using the target tools.
  97 #
  98 configdirs=`echo ${host_libs} ${host_tools}`
  99 target_configdirs=`echo ${target_libs} ${target_tools}`
 100
 101 ################################################################################
 102
 103 srctrigger=move-if-change
 104 srcname="gnu development package"
 105
 106 # This gets set non-empty for some net releases of packages.
 107 appdirs=""
 108
 109 # per-host:
 110
 111 # Work in distributions that contain no compiler tools, like Autoconf.
 112 if [ -d ${srcdir}/config ]; then
 113 case "${host}" in
 114   m68k-hp-hpux*)          host_makefile_frag=config/mh-hp300 ;;
 115   m68k-apollo-sysv*)      host_makefile_frag=config/mh-apollo68 ;;
 116   m68k-apollo-bsd*)       host_makefile_frag=config/mh-a68bsd ;;
 117   m68k-*-linux*)          host_makefile_frag=config/mh-linux ;;
 118   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
 119   m88k-harris-cxux*)      host_makefile_frag=config/mh-cxux ;;
 120   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
 121   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
 122   mips*-nec-sysv4*)       host_makefile_frag=config/mh-necv4 ;;
 123   mips*-sgi-irix[56]*)    host_makefile_frag=config/mh-irix5 ;;
 124   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
 125   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
 126   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
 127   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
 128   i[345]86-ncr-sysv4.3)   host_makefile_frag=config/mh-ncrsvr43 ;;
 129   i[345]86-ncr-sysv4*)    host_makefile_frag=config/mh-ncr3000 ;;
 130   i[345]86-*-sco3.2v5*)   host_makefile_frag=config/mh-sysv ;;
 131   i[345]86-*-sco*)        host_makefile_frag=config/mh-sco ;;
 132   i[345]86-*-isc*)        host_makefile_frag=config/mh-sysv ;;
 133   i[345]86-*-linux*)      host_makefile_frag=config/mh-linux ;;
 134   i[345]86-*-solaris2*)   host_makefile_frag=config/mh-sysv4 ;;
 135   i[345]86-*-aix*)        host_makefile_frag=config/mh-aix386 ;;
 136   i[345]86-*-go32*)       host_makefile_frag=config/mh-go32 ;;
 137   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 138   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 139   m68k-sun-sunos*)        host_makefile_frag=config/mh-sun3 ;;
 140   *-hp-hpux[78]*)         host_makefile_frag=config/mh-hpux8 ;;
 141   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 142   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 143   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 144   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 145   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 146   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 147 esac
 148 fi
 149
 150 # If we aren't going to be using gcc, see if we can extract a definition
 151 # of CC from the fragment.
 152 if [ -z "${CC}" -a "${build}" = "${host}" ]; then
 153   IFS="${IFS=   }"; save_ifs="$IFS"; IFS="${IFS}:"
 154   found=
 155   for dir in $PATH; do
 156     test -z "$dir" && dir=.
 157     if test -f $dir/gcc; then
 158       found=yes
 159       break
 160     fi
 161   done
 162   IFS="$save_ifs"
 163   if [ -z "${found}" -a -n "${host_makefile_frag}" -a -f "${srcdir}/${host_makefile_frag}" ]; then
 164     xx=`sed -n -e 's/^[         ]*CC[   ]*=[    ]*\(.*\)$/\1/p' < ${srcdir}/${host_makefile_frag}`
 165     if [ -n "${xx}" ] ; then
 166       CC=$xx
 167     fi
 168   fi
 169 fi
 170
 171 # We default to --with-shared on platforms where -fpic is meaningless.
 172 # Well, we don't yet, but we will.
 173 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 174   case "${target}" in
 175     alpha-dec-osf*)     enable_shared=yes ;;
 176     alpha-*-linux*)     enable_shared=yes ;;
 177     mips-sgi-irix5*)    enable_shared=yes ;;
 178     *)                  enable_shared=no ;;
 179   esac
 180 fi
 181
 182 case "${enable_shared}" in
 183   yes) shared=yes ;;
 184   no) shared=no ;;
 185   "") shared=no ;;
 186   *) shared=yes ;;
 187 esac
 188
 189 if [ x${shared} = xyes ]; then
 190   waugh=
 191   case "${host}" in
 192     hppa*)              waugh=config/mh-papic ;;
 193     i[345]86-*)         waugh=config/mh-x86pic ;;
 194     sparc64-*)          waugh=config/mh-sparcpic ;;
 195     *)                  waugh=config/mh-${host_cpu}pic ;;
 196   esac
 197   if [ -f ${srcdir}/${waugh} ]; then
 198     if [ -n "${host_makefile_frag}" ] ; then
 199       cat ${srcdir}/${host_makefile_frag} > mh-frag
 200       cat ${srcdir}/${waugh} >> mh-frag
 201       host_makefile_frag=mh-frag
 202     else
 203       host_makefile_frag=${waugh}
 204     fi
 205   fi
 206 fi
 207
 208 # per-target:
 209
 210 case "${target}" in
 211   v810*)                target_makefile_frag=config/mt-v810 ;;
 212   i[345]86-*-netware*)  target_makefile_frag=config/mt-netware ;;
 213   powerpc-*-netware*)   target_makefile_frag=config/mt-netware ;;
 214 esac
 215
 216 skipdirs=
 217 gasdir=gas
 218 use_gnu_ld=
 219 use_gnu_as=
 220
 221 # some tools are so dependent upon X11 that if we're not building with X,
 222 # it's not even worth trying to configure, much less build, that tool.
 223
 224 case ${with_x} in
 225   yes | "")  # the default value for this tree is that X11 is available
 226         ;;
 227   no)
 228         skipdirs="${skipdirs} tk gash"
 229         ;;
 230   *)
 231         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 232         ;;
 233 esac
 234
 235 # Some tools are only suitable for building in a "native" situation.
 236 # Those are added when we have a host==target configuration.  For cross
 237 # toolchains, we add some directories that should only be useful in a
 238 # cross-compiler.
 239
 240 is_cross_compiler=
 241
 242 if [ x"${host}" = x"${target}" ] ; then
 243         # when doing a native toolchain, don't build the targets
 244         # that are in the 'cross only' list
 245         skipdirs="${skipdirs} ${cross_only}"
 246         is_cross_compiler=no
 247         target_subdir=.
 248 else
 249         # similarly, don't build the targets in the 'native only'
 250         # list when building a cross compiler
 251         skipdirs="${skipdirs} ${native_only}"
 252         is_cross_compiler=yes
 253         target_subdir=${target_alias}
 254         if [ ! -d ${target_subdir} ] ; then
 255             if mkdir ${target_subdir} ; then true
 256             else
 257                 echo "'*** could not make ${PWD=`pwd`}/${target_subdir}" 1>&2
 258                 exit 1
 259             fi
 260         fi
 261 fi
 262
 263 copy_dirs=
 264
 265 # Handle --with-headers=XXX.  The contents of the named directory are
 266 # copied to $(tooldir)/sys-include.
 267 if [ x"${with_headers}" != x ]; then
 268   if [ x${is_cross_compiler} = xno ]; then
 269     echo 1>&2 '***' --with-headers is only supported when cross compiling
 270     exit 1
 271   fi
 272   case "${exec_prefixoption}" in
 273   "") x=${prefix} ;;
 274   *) x=${exec_prefix} ;;
 275   esac
 276   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/sys-include"
 277 fi
 278
 279 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 280 # contents are copied to $(tooldir)/lib.
 281 if [ x"${with_libs}" != x ]; then
 282   if [ x${is_cross_compiler} = xno ]; then
 283     echo 1>&2 '***' --with-libs is only supported when cross compiling
 284     exit 1
 285   fi
 286   # Copy the libraries in reverse order, so that files in the first named
 287   # library override files in subsequent libraries.
 288   case "${exec_prefixoption}" in
 289   "") x=${prefix} ;;
 290   *) x=${exec_prefix} ;;
 291   esac
 292   for l in ${with_libs}; do
 293     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 294   done
 295 fi
 296
 297 # If both --with-headers and --with-libs are specified, default to
 298 # --without-newlib.
 299 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 300   if [ x"${with_newlib}" = x ]; then
 301     with_newlib=no
 302   fi
 303 fi
 304
 305 # Recognize --with-newlib/--without-newlib.
 306 if [ x${with_newlib} = xno ]; then
 307   skipdirs="${skipdirs} target-newlib"
 308 elif [ x${with_newlib} = xyes ]; then
 309   skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 310 fi
 311
 312 # Default to using --with-stabs for certain targets.
 313 if [ x${with_stabs} = x ]; then
 314   case "${target}" in
 315   mips*-*-* | alpha*-*-osf* | i[345]86*-*-sysv4* | i[345]86*-*-unixware*)
 316     with_stabs=yes;
 317     withoptions="${withoptions} --with-stabs"
 318     ;;
 319   esac
 320 fi
 321
 322 # Handle ${copy_dirs}
 323 set fnord ${copy_dirs}
 324 shift
 325 while [ $# != 0 ]; do
 326   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 327     :
 328   else
 329     echo Copying $1 to $2
 330
 331     # Use the install script to create the directory and all required
 332     # parent directories.
 333     if [ -d $2 ]; then
 334       :
 335     else
 336       echo >config.temp
 337       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 338     fi
 339
 340     # Copy the directory, assuming we have tar.
 341     # FIXME: Should we use B in the second tar?  Not all systems support it.
 342     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 343
 344     # It is the responsibility of the user to correctly adjust all
 345     # symlinks.  If somebody can figure out how to handle them correctly
 346     # here, feel free to add the code.
 347
 348     echo $1 > $2/COPIED
 349   fi
 350   shift; shift
 351 done
 352
 353 # Configure extra directories which are host specific
 354
 355 case "${host}" in
 356         i[345]86-*-go32*)
 357           configdirs="$configdirs dosrel" ;;
 358 esac
 359
 360 # Remove more programs from consideration, based on the host or
 361 # target this usually means that a port of the program doesn't
 362 # exist yet.
 363
 364 noconfigdirs=""
 365
 366 case "${host}" in
 367   i[345]86-*-vsta)
 368     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl apache inet"
 369     ;;
 370   i[345]86-*-go32)
 371     noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl apache inet"
 372         ;;
 373   *-*-cygwin32)
 374      noconfigdirs="patch diff tk tcl expect dejagnu cvs autoconf texinfo bison send-pr gprof rcs guile perl apache inet"
 375     ;;
 376   ppc*-*-pe)
 377      noconfigdirs="patch diff make tk tcl expect dejagnu cvs autoconf texinfo bison send-pr gprof rcs guile perl apache inet"
 378     ;;
 379 esac
 380
 381
 382 case "${target}" in
 383   *-*-netware)
 384     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-librx target-newlib target-libiberty target-libgloss"
 385     ;;
 386   *-*-vxworks*)
 387     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 388     ;;
 389   *-*-ose)
 390     noconfigdirs="$noconfigdirs target-libgloss"
 391     ;;
 392   alpha-dec-osf*)
 393     # ld works, but does not support shared libraries.  emacs doesn't
 394     # work.  newlib is not 64 bit ready.  I'm not sure about fileutils or grep.
 395     # gas doesn't generate exception information.
 396     noconfigdirs="$noconfigdirs gas ld emacs fileutils grep target-newlib target-libgloss"
 397     ;;
 398   alpha*-*-*vms*)
 399     noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss"
 400     ;;
 401   alpha*-*-*)
 402     # newlib is not 64 bit ready
 403     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 404     ;;
 405 # start-sanitize-arc
 406   arc-*-*)
 407     noconfigdirs="$noconfigdirs target-libgloss"
 408     ;;
 409 # end-sanitize-arc
 410   arm-*-pe*)
 411     noconfigdirs="$noconfigdirs target-libgloss"
 412     ;;
 413   arm-*-riscix*)
 414     noconfigdirs="$noconfigdirs ld target-libgloss"
 415     ;;
 416   h8300*-*-* | \
 417   h8500-*-*)
 418     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx target-libgloss"
 419     ;;
 420   hppa*-*-*elf* | \
 421   hppa*-*-lites*)
 422     # Do configure ld/binutils/gas for this case.
 423     ;;
 424   hppa*-*-*)
 425     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 426     # cc is gcc, and on any system a user should be able to link cc to
 427     # whatever they want.  FIXME, emacs emacs19).
 428     case "${CC}" in
 429         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 430         *) ;;
 431     esac
 432     noconfigdirs="$noconfigdirs ld shellutils"
 433     ;;
 434   i[345]86-*-go32)
 435     # but don't build gdb
 436     noconfigdirs="$noconfigdirs gdb target-libg++ target-libstdc++ target-libio target-librx"
 437     ;;
 438   *-*-cygwin32)
 439     target_configdirs="$target_configdirs target-winsup"
 440     noconfigdirs="$noconfigdirs tcl tk expect target-libgloss"
 441     # always build newlib.
 442     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 443
 444     # Can't build gdb for cygwin32 if not native.
 445     case "${host}" in
 446       *-*-cygwin32) ;; # keep gdb
 447       *) noconfigdirs="$noconfigdirs gdb"
 448     esac
 449     ;;
 450   i[345]86-*-pe)
 451     noconfigdirs="$noconfigdirs target-libg++ target-libstdc++ target-libio target-librx target-libgloss"
 452     ;;
 453   i[345]86-*-sco3.2v5*)
 454     # The linker does not yet know about weak symbols in COFF,
 455     # and is not configured to handle mixed ELF and COFF.
 456     noconfigdirs="$noconfigdirs gprof ld target-libgloss"
 457     ;;
 458   i[345]86-*-sco*)
 459     noconfigdirs="$noconfigdirs gprof target-libgloss"
 460     ;;
 461   i[345]86-*-solaris2*)
 462     # The linker does static linking correctly, but the Solaris C library
 463     # has bugs such that some important functions won't work when statically
 464     # linked.  (See man pages for getpwuid, for example.)
 465     noconfigdirs="$noconfigdirs ld target-libgloss"
 466     ;;
 467   i[345]86-*-sysv4*)
 468     # The SYSV4 C compiler doesn't handle Emacs correctly
 469     case "${CC}" in
 470         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 471         *) ;;
 472     esac
 473     # but that's okay since emacs doesn't work anyway
 474     noconfigdirs="$noconfigdirs emacs emacs19 target-libgloss"
 475     ;;
 476   powerpc-*-aix*)
 477     # copied from rs6000-*-* entry
 478     noconfigdirs="$noconfigdirs gprof cvs target-libgloss"
 479     # This is needed until gcc and ld are fixed to work together.
 480     use_gnu_ld=no
 481     ;;
 482   powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
 483     target_configdirs="$target_configdirs target-winsup"
 484     noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss"
 485     # always build newlib.
 486     skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
 487     ;;
 488     # This is temporary until we can link against shared libraries
 489   powerpcle-*-solaris*)
 490     noconfigdirs="$noconfigdirs gdb sim make tcl tk expect"
 491     ;;
 492   rs6000-*-lynxos*)
 493     # The CVS server code doesn't work on the RS/6000
 494     # Newlib makes problems for libg++ in crosses.
 495     noconfigdirs="$noconfigdirs target-newlib gprof cvs"
 496     ;;
 497   rs6000-*-aix*)
 498     noconfigdirs="$noconfigdirs gprof"
 499     # This is needed until gcc and ld are fixed to work together.
 500     use_gnu_ld=no
 501     ;;
 502   rs6000-*-*)
 503     noconfigdirs="$noconfigdirs gprof"
 504     ;;
 505   m68k-apollo-*)
 506     noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss"
 507     ;;
 508   mips*-*-irix5*)
 509     # The GNU linker does not support shared libraries.
 510     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 511     noconfigdirs="$noconfigdirs ld gprof emacs target-libgloss"
 512     ;;
 513   mips*-dec-bsd*)
 514     noconfigdirs="$noconfigdirs gprof target-libgloss"
 515     ;;
 516   mips*-*-bsd*)
 517     noconfigdirs="$noconfigdirs gprof target-libgloss"
 518     ;;
 519   mips*-*-*)
 520     noconfigdirs="$noconfigdirs gprof"
 521     ;;
 522   romp-*-*)
 523     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss"
 524     ;;
 525   sh-*-*)
 526     case "${host}" in
 527       i[345]86-*-vsta) ;; # don't add gprof back in
 528       i[345]86-*-go32) ;; # don't add gprof back in
 529       *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
 530     esac
 531     noconfigdirs="$noconfigdirs target-libgloss"
 532     ;;
 533   sparc-*-sunos4*)
 534     if [ x${is_cross_compiler} != xno ] ; then
 535            noconfigdirs="$noconfigdirs gdb gdbtest target-newlib target-libgloss"
 536     else
 537            use_gnu_ld=no
 538     fi
 539     ;;
 540   v810-*-*)
 541     noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libio target-libg++ target-libstdc++ opcodes target-libgloss"
 542     ;;
 543   vax-*-vms)
 544     noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss"
 545     ;;
 546   vax-*-*)
 547     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 548     ;;
 549   *-*-lynxos*)
 550     # Newlib makes problems for libg++ in crosses.
 551     noconfigdirs="$noconfigdirs target-newlib target-libgloss"
 552     ;;
 553   *-*-macos* | \
 554   *-*-mpw*)
 555     # Macs want a resource compiler.
 556     configdirs="$configdirs grez"
 557     ;;
 558 esac
 559
 560 # targets that need a second pass
 561 case "${target}" in
 562   *-gm-magic*)
 563     noconfigdirs="$noconfigdirs target-libgloss"
 564     ;;
 565 esac
 566
 567 # If we aren't building newlib, then don't build libgloss, since libgloss
 568 # depends upon some newlib header files.
 569 case "${noconfigdirs}" in
 570   *target-libgloss*) ;;
 571   *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
 572 esac
 573
 574 # If we are building a Canadian Cross, discard tools that can not be built
 575 # using a cross compiler.  FIXME: These tools should be fixed.
 576 if [ "${build}" != "${host}" ]; then
 577   noconfigdirs="$noconfigdirs expect dejagnu texinfo diff"
 578 fi
 579
 580 # Make sure we don't let GNU ld be added if we didn't want it.
 581 if [ x$with_gnu_ld = xno ]; then
 582   use_gnu_ld=no
 583   noconfigdirs="$noconfigdirs ld"
 584 fi
 585
 586 # Make sure we don't let GNU as be added if we didn't want it.
 587 if [ x$with_gnu_as = xno ]; then
 588   use_gnu_as=no
 589   noconfigdirs="$noconfigdirs gas"
 590 fi
 591
 592 # Remove the entries in $skipdirs and $noconfigdirs from $configdirs and
 593 # $target_configdirs.
 594 # If we have the source for $noconfigdirs entries, add them to $notsupp.
 595
 596 notsupp=""
 597 for dir in . $skipdirs $noconfigdirs ; do
 598   dirname=`echo $dir | sed -e s/target-//g`
 599   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 600     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 601     if [ -r $srcdir/$dirname/configure ] \
 602         || [ -r $srcdir/$dirname/configure.in ]; then
 603       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 604         true
 605       else
 606         notsupp="$notsupp $dir"
 607       fi
 608     fi
 609   fi
 610   if [ $dir != . ]  && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 611     target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
 612     if [ -r $srcdir/$dirname/configure ] \
 613         || [ -r $srcdir/$dirname/configure.in ]; then
 614       if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 615         true
 616       else
 617         notsupp="$notsupp $dir"
 618       fi
 619     fi
 620   fi
 621 done
 622
 623 # Sometimes the tools are distributed with libiberty but with no other
 624 # libraries.  In that case, we don't want to build target-libiberty.
 625 if [ -n "${target_configdirs}" ]; then
 626   others=
 627   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 628     if [ "$i" != "libiberty" ]; then
 629       if [ -r $srcdir/$i/configure ] || [ -r $srcdir/$i/configure.in ]; then
 630         others=yes;
 631         break;
 632       fi
 633     fi
 634   done
 635   if [ -z "${others}" ]; then
 636     target_configdirs=
 637   fi
 638 fi
 639
 640 # Deconfigure all subdirectories, in case we are changing the
 641 # configuration from one where a subdirectory is supported to one where it
 642 # is not.
 643 if [ -z "${norecursion}" -a -n "${configdirs}" ]; then
 644   for i in `echo ${configdirs} | sed -e s/target-//g` ; do
 645     rm -f $i/Makefile
 646   done
 647 fi
 648 if [ -z "${norecursion}" -a -n "${target_configdirs}" ]; then
 649   for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
 650     rm -f ${target_subdir}/$i/Makefile
 651   done
 652 fi
 653
 654 # Produce a warning message for the subdirs we can't configure.
 655 # This isn't especially interesting in the Cygnus tree, but in the individual
 656 # FSF releases, it's important to let people know when their machine isn't
 657 # supported by the one or two programs in a package.
 658
 659 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 660   # If $appdirs is non-empty, at least one of those directories must still
 661   # be configured, or we error out.  (E.g., if the gas release supports a
 662   # specified target in some subdirs but not the gas subdir, we shouldn't
 663   # pretend that all is well.)
 664   if [ -n "$appdirs" ]; then
 665     for dir in $appdirs ; do
 666       if [ -r $dir/Makefile.in ]; then
 667         if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 668           appdirs=""
 669           break
 670         fi
 671         if echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 672           appdirs=""
 673           break
 674         fi
 675       fi
 676     done
 677     if [ -n "$appdirs" ]; then
 678       echo "*** This configuration is not supported by this package." 1>&2
 679       exit 1
 680     fi
 681   fi
 682   # Okay, some application will build, or we don't care to check.  Still
 683   # notify of subdirs not getting built.
 684   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 685   echo "    ${notsupp}" 1>&2
 686   echo "    (Any other directories should still work fine.)" 1>&2
 687 fi
 688
 689 # Set with_gnu_as and with_gnu_ld as appropriate.
 690 #
 691 # This is done by determining whether or not the appropriate directory
 692 # is available, and by checking whether or not specific configurations
 693 # have requested that this magic not happen.
 694 #
 695 # The command line options always override the explicit settings in
 696 # configure.in, and the settings in configure.in override this magic.
 697 #
 698 # If the default for a toolchain is to use GNU as and ld, and you don't
 699 # want to do that, then you should use the --without-gnu-as and
 700 # --without-gnu-ld options for the configure script.
 701
 702 if [ x${use_gnu_as} = x ] ; then
 703   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 704     with_gnu_as=yes
 705     withoptions="$withoptions --with-gnu-as"
 706   fi
 707 fi
 708
 709 if [ x${use_gnu_ld} = x ] ; then
 710   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 711     with_gnu_ld=yes
 712     withoptions="$withoptions --with-gnu-ld"
 713   fi
 714 fi
 715
 716 if [ x${shared} = xyes ]; then
 717   case "${target}" in
 718     hppa*)              target_makefile_frag=config/mt-papic ;;
 719     i[345]86-*)         target_makefile_frag=config/mt-x86pic ;;
 720     *)                  target_makefile_frag=config/mt-${target_cpu}pic ;;
 721   esac
 722 fi
 723
 724 # post-target:
 725
 726 # Make sure that the compiler is able to generate an executable.  If it
 727 # can't, we are probably in trouble.  We don't care whether we can run the
 728 # executable--we might be using a cross compiler--we only care whether it
 729 # can be created.  At this point the main configure script has set CC.
 730 echo "int main () { return 0; }" > conftest.c
 731 ${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
 732 if [ $? = 0 ] && [ -s conftest ]; then
 733   :
 734 else
 735   echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
 736   echo 1>&2 "*** You must set the environment variable CC to a working compiler."
 737   rm -f conftest*
 738   exit 1
 739 fi
 740 rm -f conftest*
 741
 742 # The Solaris /usr/ucb/cc compiler does not appear to work.
 743 case "${host}" in
 744   sparc-sun-solaris2*)
 745       CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
 746       if [ "`/usr/bin/which $CCBASE`" = "/usr/ucb/cc" ] ; then
 747           could_use=
 748           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
 749           if [ -d /opt/cygnus/bin ] ; then
 750               if [ "$could_use" = "" ] ; then
 751                   could_use="/opt/cygnus/bin"
 752               else
 753                   could_use="$could_use or /opt/cygnus/bin"
 754               fi
 755           fi
 756         if [ "$could_use" = "" ] ; then
 757             echo "Warning: compilation may fail because you're using"
 758             echo "/usr/ucb/cc.  You should change your PATH or CC "
 759             echo "variable and rerun configure."
 760         else
 761             echo "Warning: compilation may fail because you're using"
 762             echo "/usr/ucb/cc, when you should use the C compiler from"
 763             echo "$could_use.  You should change your"
 764             echo "PATH or CC variable and rerun configure."
 765         fi
 766       fi
 767   ;;
 768 esac
 769
 770 # If --enable-shared was set, we must set LD_LIBRARY_PATH so that the
 771 # binutils tools will find libbfd.so.
 772 if [ "${shared}" = "yes" ]; then
 773   sed -e 's/^SET_LIB_PATH[      ]*=.*$/SET_LIB_PATH = $(REALLY_SET_LIB_PATH)/' \
 774       Makefile > Makefile.tem
 775   rm -f Makefile
 776   mv -f Makefile.tem Makefile
 777
 778   case "${host}" in
 779   *-*-hpux*)
 780     sed -e 's/RPATH_ENVVAR[     ]*=.*$/RPATH_ENVVAR = SHLIB_PATH/' \
 781         Makefile > Makefile.tem
 782     rm -f Makefile
 783     mv -f Makefile.tem Makefile
 784     ;;
 785   esac
 786 fi
 787
 788 # Record target_configdirs and the configure arguments in Makefile.
 789 target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
 790 targargs=`echo "${arguments}" | \
 791         sed -e 's/--norecursion//' \
 792             -e 's/--cache[a-z-]*=[^     ]*//' \
 793             -e 's/--ho[a-z-]*=[^        ]*//' \
 794             -e 's/--ta[a-z-]*=[^        ]*//'`
 795
 796 # Passing a --with-cross-host argument lets the target libraries know
 797 # whether they are being built with a cross-compiler or being built
 798 # native.  However, it would be better to use other mechanisms to make the
 799 # sorts of decisions they want to make on this basis.  Please consider
 800 # this option to be deprecated.  FIXME.
 801 if [ x${is_cross_compiler} = xyes ]; then
 802   targargs="--with-cross-host=${host_alias} ${targargs}"
 803 fi
 804
 805 targargs="--host=${target_alias} ${targargs}"
 806 sed -e "s:^TARGET_CONFIGDIRS[   ]*=.*$:TARGET_CONFIGDIRS = ${target_configdirs}:" \
 807     -e "s%^CONFIG_ARGUMENTS[    ]*=.*$%CONFIG_ARGUMENTS = ${targargs}%" \
 808     -e "s%^TARGET_SUBDIR[       ]*=.*$%TARGET_SUBDIR = ${target_subdir}%" \
 809        Makefile > Makefile.tem
 810 rm -f Makefile
 811 mv -f Makefile.tem Makefile
 812
 813 #
 814 # Local Variables:
 815 # fill-column: 131
 816 # End:
 817 #