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 ${host_tools} list after byacc and bison.
  23
  24
  25 # these libraries are used by various programs built for the host environment
  26 #
  27 host_libs="mmalloc libiberty opcodes bfd readline glob gash tcl tk tclX"
  28
  29 if [ "${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"
  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="libm xiberty libgloss newlib libio librx libstdc++ 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="examples 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 xiberty 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 groff gzip hello
  68              indent ispell m4 rcs recode sed shellutils tar textutils gash
  69              uudecode wdiff gprof"
  70
  71 # directories to be built in a cross environment only
  72 #
  73 cross_only="xiberty libgloss 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 #
  79 configdirs=`echo ${host_libs} ${host_tools} ${target_libs} ${target_tools}`
  80
  81 ################################################################################
  82
  83 srctrigger=move-if-change
  84 srcname="gnu development package"
  85
  86 # This gets set non-empty for some net releases of packages.
  87 appdirs=""
  88
  89 # per-host:
  90
  91 # Work in distributions that contain no compiler tools, like Autoconf.
  92 if [ -d ${srcdir}/config ]; then
  93 case "${host}" in
  94   m68k-hp-hpux*)          host_makefile_frag=config/mh-hp300 ;;
  95   m68k-apollo-sysv*)      host_makefile_frag=config/mh-apollo68 ;;
  96   m68k-apollo-bsd*)       host_makefile_frag=config/mh-a68bsd ;;
  97   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
  98   m88k-harris-cxux*)      host_makefile_frag=config/mh-cxux ;;
  99   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
 100   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
 101   mips*-sgi-irix5*)       host_makefile_frag=config/mh-irix5 ;;
 102   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
 103   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
 104   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
 105   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
 106   i[345]86-ncr-sysv4.3)   host_makefile_frag=config/mh-ncrsvr43 ;;
 107   i[345]86-ncr-sysv4*)    host_makefile_frag=config/mh-ncr3000 ;;
 108   i[345]86-*-sco*)        host_makefile_frag=config/mh-sco ;;
 109   i[345]86-*-isc*)        host_makefile_frag=config/mh-sysv ;;
 110   i[345]86-*-linux*)      host_makefile_frag=config/mh-linux ;;
 111   i[345]86-*-solaris2*)   host_makefile_frag=config/mh-sysv4 ;;
 112   i[345]86-*-aix*)        host_makefile_frag=config/mh-aix386 ;;
 113   i[345]86-*-go32*)       host_makefile_frag=config/mh-go32 ;;
 114   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 115   *-ibm-aix*)             host_makefile_frag=config/mh-aix ;;
 116   *-bull-bosx*)           host_makefile_frag=config/mh-aix ;;
 117   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 118   m68k-sun-*)             host_makefile_frag=config/mh-sun3 ;;
 119   *-sun-*)                host_makefile_frag=config/mh-sun ;;
 120   *-hp-hpux[78]*)         host_makefile_frag=config/mh-hpux8 ;;
 121   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 122   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 123   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 124   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 125   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 126   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 127 esac
 128 fi
 129
 130 # The Solaris /usr/ucb/cc compiler does not appear to work.
 131 case "${host}" in
 132   sparc-sun-solaris2*)
 133       if [ "`/usr/bin/which ${CC-cc}`" = "/usr/ucb/cc" ] ; then
 134           could_use=
 135           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
 136           if [ -d /opt/cygnus/bin ] ; then
 137               if [ "$could_use" == "" ] ; then
 138                   could_use="/opt/cygnus/bin"
 139               else
 140                   could_use="$could_use or /opt/cygnus/bin"
 141               fi
 142           fi
 143         if [ "$could_use" = "" ] ; then
 144             echo "Warning: compilation may fail because you're using"
 145             echo "/usr/ucb/cc.  You should change your PATH or CC "
 146             echo "variable and rerun configure."
 147         else
 148             echo "Warning: compilation may fail because you're using"
 149             echo "/usr/ucb/cc, when you should use the C compiler from"
 150             echo "$could_use.  You should change your"
 151             echo "PATH or CC variable and rerun configure."
 152         fi
 153       fi
 154   ;;
 155 esac
 156
 157 # We default to --with-shared on platforms where -fpic is meaningless.
 158 # Well, we don't yet, but we will.
 159 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 160   case "${target}" in
 161     alpha-dec-osf*)     enable_shared=yes ;;
 162     mips-sgi-irix5*)    enable_shared=yes ;;
 163     *)                  enable_shared=no ;;
 164   esac
 165 fi
 166
 167 if [ x${enable_shared} = xyes ]; then
 168   waugh=
 169   case "${host}" in
 170     hppa*)              waugh=config/mh-papic ;;
 171     i[345]86-*)         waugh=config/mh-x86pic ;;
 172     *)                  waugh=config/mh-${host_cpu}pic ;;
 173   esac
 174   if [ -f ${srcdir}/${waugh} ]; then
 175     if [ -n "${host_makefile_frag}" ] ; then
 176       cat ${srcdir}/${host_makefile_frag} > mh-frag
 177       cat ${srcdir}/${waugh} >> mh-frag
 178       host_makefile_frag=mh-frag
 179     else
 180       host_makefile_frag=${waugh}
 181     fi
 182   fi
 183 fi
 184
 185 # per-target:
 186
 187 case "${target}" in
 188   v810*)                target_makefile_frag=config/mt-v810 ;;
 189 esac
 190
 191 gasdir=gas
 192 use_gnu_ld=
 193 use_gnu_as=
 194
 195 # some tools are so dependent upon X11 that if we're not building with X,
 196 # it's not even worth trying to configure, much less build, that tool.
 197
 198 case ${with_x} in
 199   yes | "")  # the default value for this tree is that X11 is available
 200         ;;
 201   no)
 202         configdirs=`echo " ${configdirs} " | sed -e 's/ tk / /;/ gash / /'`
 203         ;;
 204   *)
 205         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 206         ;;
 207 esac
 208
 209 # Some tools are only suitable for building in a "native" situation.
 210 # Those are added when we have a host==target configuration.  For cross
 211 # toolchains, we add some directories that should only be useful in a
 212 # cross-compiler.
 213
 214 is_cross_compiler=
 215
 216 if [ x"${host}" = x"${target}" ] ; then
 217         # when doing a native toolchain, don't build the targets
 218         # that are in the 'cross only' list
 219         for i in ${cross_only} ; do
 220           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 221         done
 222         is_cross_compiler=no
 223 else
 224         # similarly, don't build the targets in the 'native only'
 225         # list when building a cross compiler
 226         for i in ${native_only} ; do
 227           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 228         done
 229         is_cross_compiler=yes
 230 fi
 231
 232 copy_dirs=
 233
 234 # Handle --with-headers=XXX.  The contents of the named directory are
 235 # copied to $(tooldir)/include.
 236 if [ x"${with_headers}" != x ]; then
 237   if [ x${is_cross_compiler} = xno ]; then
 238     echo 1>&2 '***' --with-headers is only supported when cross compiling
 239     exit 1
 240   fi
 241   case "${exec_prefixoption}" in
 242   "") x=${prefix} ;;
 243   *) x=${exec_prefix} ;;
 244   esac
 245   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/include"
 246 fi
 247
 248 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 249 # contents are copied to $(tooldir)/lib.
 250 if [ x"${with_libs}" != x ]; then
 251   if [ x${is_cross_compiler} = xno ]; then
 252     echo 1>&2 '***' --with-libs is only supported when cross compiling
 253     exit 1
 254   fi
 255   # Copy the libraries in reverse order, so that files in the first named
 256   # library override files in subsequent libraries.
 257   case "${exec_prefixoption}" in
 258   "") x=${prefix} ;;
 259   *) x=${exec_prefix} ;;
 260   esac
 261   for l in ${with_libs}; do
 262     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 263   done
 264 fi
 265
 266 # If both --with-headers and --with-libs are specified, default to
 267 # --without-newlib.
 268 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 269   if [ x"${with_newlib}" = x ]; then
 270     with_newlib=no
 271   fi
 272 fi
 273
 274 # Recognize --without-newlib.
 275 if [ x${with_newlib} = xno ]; then
 276   configdirs=`echo " ${configdirs} " | sed -e 's/ newlib / /'`
 277 fi
 278
 279 # Handle ${copy_dirs}
 280 set fnord ${copy_dirs}
 281 shift
 282 while [ $# != 0 ]; do
 283   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 284     :
 285   else
 286     echo Copying $1 to $2
 287
 288     # Use the install script to create the directory and all required
 289     # parent directories.
 290     if [ -d $2 ]; then
 291       :
 292     else
 293       echo >config.temp
 294       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 295     fi
 296
 297     # Copy the directory, assuming we have tar.
 298     # FIXME: Should we use B in the second tar?  Not all systems support it.
 299     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 300
 301     # It is the responsibility of the user to correctly adjust all
 302     # symlinks.  If somebody can figure out how to handle them correctly
 303     # here, feel free to add the code.
 304
 305     echo $1 > $2/COPIED
 306   fi
 307   shift; shift
 308 done
 309
 310 # Configure extra directories which are host specific
 311
 312 case "${host}" in
 313   i[345]86-*-go32*)
 314                   configdirs="$configdirs dosrel" ;;
 315 esac
 316
 317 # Remove more programs from consideration, based on the host or
 318 # target this usually means that a port of the program doesn't
 319 # exist yet.
 320
 321 noconfigdirs=""
 322
 323 case "${host}" in
 324   i[345]86-*-netbsd*)
 325     noconfigdirs="tk fileutils"
 326     ;;
 327   i[345]86-*-vsta)
 328     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 329     ;;
 330   i[345]86-*-go32)
 331     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 332     ;;
 333 esac
 334
 335
 336 case "${target}" in
 337   *-*-netware)
 338     noconfigdirs="$noconfigdirs libg++ libstdc++ librx newlib xiberty"
 339     ;;
 340   alpha-dec-osf*)
 341     # ld works, but does not support shared libraries.  emacs doesn't
 342     # work.  newlib is not 64 bit ready.  I'm not sure about emacs19,
 343     # fileutils or grep.
 344     noconfigdirs="$noconfigdirs ld emacs emacs19 fileutils grep newlib"
 345     ;;
 346   alpha*-*-*)
 347     # newlib is not 64 bit ready
 348     noconfigdirs="$noconfigdirs newlib"
 349     ;;
 350 # start-sanitize-arc
 351   arc-*-*)
 352     # Leave g++ for later.
 353     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 354     ;;
 355 # end-sanitize-arc
 356 # start-sanitize-psion
 357   arm-*-pe*)
 358     # Leave g++ for later.
 359     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 360     ;;
 361 # end-sanitize-psion
 362   arm-*-*)
 363     noconfigdirs="$noconfigdirs ld"
 364     ;;
 365   h8300*-*-* | \
 366   h8500-*-*)
 367     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 368     ;;
 369   hppa*-*-*elf*)
 370     # Do configure ld/binutils/gas for this case.
 371     ;;
 372   hppa*-*-*)
 373     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 374     # cc is gcc, and on any system a user should be able to link cc to
 375     # whatever they want.  FIXME, emacs emacs19).
 376     case "${CC}" in
 377         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 378         *) ;;
 379     esac
 380     noconfigdirs="$noconfigdirs ld shellutils"
 381     ;;
 382   i[345]86-*-go32)
 383     # add the go32 support tools to the list
 384     # but don't build gdb
 385     configdirs=`echo go32 ${configdirs}`
 386     noconfigdirs="$noconfigdirs gdb libg++ libstdc++ libio librx"
 387     ;;
 388   i[345]86-*-sco*)
 389     noconfigdirs="$noconfigdirs gprof"
 390     ;;
 391   i[345]86-*-solaris2*)
 392     # The linker does static linking correctly, but the Solaris C library
 393     # has bugs such that some important functions won't work when statically
 394     # linked.  (See man pages for getpwuid, for example.)
 395     noconfigdirs="$noconfigdirs ld"
 396     ;;
 397   i[345]86-*-sysv4*)
 398     # The SYSV4 C compiler doesn't handle Emacs correctly
 399     case "${CC}" in
 400         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 401         *) ;;
 402     esac
 403     # but that's okay since emacs doesn't work anyway
 404     noconfigdirs="$noconfigdirs emacs emacs19"
 405     ;;
 406   powerpc-*-aix*)
 407     # copied from rs6000-*-* entry
 408     noconfigdirs="$noconfigdirs gas ld binutils gprof textutils cvs"
 409     ;;
 410   rs6000-*-lynxos*)
 411     # a gcc built textutils will cause the linker to hang on 'join'
 412     # The CVS server code doesn't work on the RS/6000
 413     # Newlib makes problems for libg++ in crosses.
 414     noconfigdirs="$noconfigdirs gas ld newlib gprof textutils cvs"
 415     use_gnu_ld=no
 416     use_gnu_as=no
 417     ;;
 418   rs6000-*-*)
 419     # a gcc built textutils will cause the linker to hang on 'join'
 420     noconfigdirs="$noconfigdirs gas ld binutils gprof textutils"
 421     ;;
 422   m68k-apollo-*)
 423     noconfigdirs="$noconfigdirs ld binutils gprof"
 424     ;;
 425   mips*-*-irix5*)
 426     # The GNU linker does not support shared libraries.
 427     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 428     noconfigdirs="$noconfigdirs ld gprof emacs"
 429     ;;
 430   mips*-dec-bsd*)
 431     noconfigdirs="$noconfigdirs gprof"
 432     ;;
 433   mips*-*-bsd*)
 434     noconfigdirs="$noconfigdirs gprof ld"
 435     ;;
 436   mips*-*-*)
 437     noconfigdirs="$noconfigdirs gprof"
 438     ;;
 439   romp-*-*)
 440     noconfigdirs="bfd binutils ld gas opcodes"
 441     ;;
 442   sh-*-*)
 443     case "${host}" in
 444       i[345]86-*-vsta) ;; # don't add gprof back in
 445       *) configdirs=`echo gprof ${configdirs}` ;;
 446       i[345]86-*-go32) ;; # don't add gprof back in
 447       *) configdirs=`echo gprof ${configdirs}` ;;
 448     esac
 449     ;;
 450   sparc-*-sunos4*)
 451     if [ x${is_cross_compiler} != xno ] ; then
 452            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 453     else
 454            use_gnu_ld=no
 455     fi
 456     ;;
 457   vax-*-vms)
 458     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 459     ;;
 460   vax-*-*)
 461     noconfigdirs="$noconfigdirs newlib"
 462     ;;
 463   *-*-lynxos*)
 464      # Newlib makes problems for libg++ in crosses.
 465      noconfigdirs="$noconfigdirs newlib"
 466      ;;
 467 esac
 468
 469 # Remove the entries in $noconfigdirs from $configdirs.  If we have the
 470 # source for them, add them to $notsupp.
 471 notsupp=""
 472 for dir in . $noconfigdirs ; do
 473   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 474     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 475     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 476       notsupp="$notsupp $dir"
 477     fi
 478   fi
 479 done
 480
 481 # Produce a warning message for the subdirs we can't configure.
 482 # This isn't especially interesting in the Cygnus tree, but in the individual
 483 # FSF releases, it's important to let people know when their machine isn't
 484 # supported by the one or two programs in a package.
 485
 486 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 487   # If $appdirs is non-empty, at least one of those directories must still
 488   # be configured, or we error out.  (E.g., if the gas release supports a
 489   # specified target in some subdirs but not the gas subdir, we shouldn't
 490   # pretend that all is well.)
 491   if [ -n "$appdirs" ]; then
 492     for dir in $appdirs ; do
 493       if [ -r $dir/Makefile.in ] && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1 ; then
 494         appdirs=""
 495         break
 496       fi
 497     done
 498     if [ -n "$appdirs" ]; then
 499       echo "*** This configuration is not supported by this package." 1>&2
 500       exit 1
 501     fi
 502   fi
 503   # Okay, some application will build, or we don't care to check.  Still
 504   # notify of subdirs not getting built.
 505   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 506   echo "    ${notsupp}" 1>&2
 507   echo "    (Any other directories should still work fine.)" 1>&2
 508 fi
 509
 510 # Set with_gnu_as and with_gnu_ld as appropriate.
 511 #
 512 # This is done by determining whether or not the appropriate directory
 513 # is available, and by checking whether or not specific configurations
 514 # have requested that this magic not happen.
 515 #
 516 # The command line options always override the explicit settings in
 517 # configure.in, and the settings in configure.in override this magic.
 518 #
 519 # If the default for a toolchain is to use GNU as and ld, and you don't
 520 # want to do that, then you should use the --without-gnu-as and
 521 # --without-gnu-ld options for the configure script.
 522
 523 if [ x${use_gnu_as} = x ] ; then
 524   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 525     with_gnu_as=yes
 526     withoptions="$withoptions --with-gnu-as"
 527   fi
 528 fi
 529
 530 if [ x${use_gnu_ld} = x ] ; then
 531   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 532     with_gnu_ld=yes
 533     withoptions="$withoptions --with-gnu-ld"
 534   fi
 535 fi
 536
 537 if [ x${enable_shared} = xyes ]; then
 538   case "${target}" in
 539     hppa*)              target_makefile_frag=config/mt-papic ;;
 540     i[345]86-*)         target_makefile_frag=config/mt-x86pic ;;
 541     *)                  target_makefile_frag=config/mt-${target_cpu}pic ;;
 542   esac
 543 fi
 544
 545 #
 546 # Local Variables:
 547 # fill-column: 131
 548 # End:
 549 #