configure.in

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