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 libg++"
  46 # If you're using gcc-2.6.1, uncomment following line.
  47 # target_libs="libm xiberty libgloss newlib libio librx libstdc++ libg++"
  48
  49
  50 # these tools are built using the target libs, and are intended to run only
  51 # in the target environment
  52 #
  53 # note: any program that *uses* libraries that are in the "target_libs"
  54 # list belongs in this list.  those programs are also very likely
  55 # candidates for the "native_only" list which follows
  56 #
  57 target_tools="examples groff"
  58
  59 ################################################################################
  60
  61 ## These two lists are of directories that are to be removed from the
  62 ## ${configdirs} list for either cross-compilations or for native-
  63 ## compilations.  For example, it doesn't make that much sense to
  64 ## cross-compile Emacs, nor is it terribly useful to compile xiberty in
  65 ## a native environment.
  66
  67 # directories to be built in the native environment only
  68 #
  69 native_only="autoconf cvs emacs emacs19 fileutils find grep groff gzip hello
  70              indent ispell m4 rcs recode sed shellutils tar textutils gash tk
  71              uudecode wdiff gprof"
  72
  73 # directories to be built in a cross environment only
  74 #
  75 cross_only="xiberty libgloss newlib"
  76
  77 ## All tools belong in one of the four categories, and are assigned above
  78 ## We assign ${configdirs} this way to remove all embedded newlines.  This
  79 ## is important because configure will choke if they ever get through.
  80 #
  81 configdirs=`echo ${host_libs} ${host_tools} ${target_libs} ${target_tools}`
  82
  83 ################################################################################
  84
  85 srctrigger=move-if-change
  86 srcname="gnu development package"
  87
  88 # This gets set non-empty for some net releases of packages.
  89 appdirs=""
  90
  91 # per-host:
  92
  93 # Work in distributions that contain no compiler tools, like Autoconf.
  94 if [ -d ${srcdir}/config ]; then
  95 case "${host}" in
  96   m68k-hp-hpux*)          host_makefile_frag=config/mh-hp300 ;;
  97   m68k-apollo-sysv*)      host_makefile_frag=config/mh-apollo68 ;;
  98   m68k-apollo-bsd*)       host_makefile_frag=config/mh-a68bsd ;;
  99   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
 100   m88k-harris-cxux*)      host_makefile_frag=config/mh-cxux ;;
 101   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
 102   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
 103   mips*-sgi-irix5*)       host_makefile_frag=config/mh-irix5 ;;
 104   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
 105   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
 106   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
 107   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
 108   i[345]86-ncr-sysv4.3)   host_makefile_frag=config/mh-ncrsvr43 ;;
 109   i[345]86-ncr-sysv4*)    host_makefile_frag=config/mh-ncr3000 ;;
 110   i[345]86-*-sco*)        host_makefile_frag=config/mh-sco ;;
 111   i[345]86-*-isc*)        host_makefile_frag=config/mh-sysv ;;
 112   i[345]86-*-linux*)      host_makefile_frag=config/mh-linux ;;
 113   i[345]86-*-solaris2*)   host_makefile_frag=config/mh-sysv4 ;;
 114   i[345]86-*-aix*)        host_makefile_frag=config/mh-aix386 ;;
 115   i[345]86-*-go32*)       host_makefile_frag=config/mh-go32 ;;
 116   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 117   *-ibm-aix*)             host_makefile_frag=config/mh-aix ;;
 118   *-bull-bosx*)           host_makefile_frag=config/mh-aix ;;
 119   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 120   m68k-sun-*)             host_makefile_frag=config/mh-sun3 ;;
 121   *-sun-*)                host_makefile_frag=config/mh-sun ;;
 122   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 123   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 124   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 125   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 126   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 127   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 128 esac
 129 fi
 130
 131 # The Solaris /usr/ucb/cc compiler does not appear to work.
 132 case "${host}" in
 133   sparc-sun-solaris2*)
 134       if [ "`/usr/bin/which ${CC-cc}`" = "/usr/ucb/cc" ] ; then
 135           could_use=
 136           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
 137           if [ -d /opt/cygnus/bin ] ; then
 138               if [ "$could_use" == "" ] ; then
 139                   could_use="/opt/cygnus/bin"
 140               else
 141                   could_use="$could_use or /opt/cygnus/bin"
 142               fi
 143           fi
 144         if [ "$could_use" = "" ] ; then
 145             echo "Warning: compilation may fail because you're using"
 146             echo "/usr/ucb/cc.  You should change your PATH or CC "
 147             echo "variable and rerun configure."
 148         else
 149             echo "Warning: compilation may fail because you're using"
 150             echo "/usr/ucb/cc, when you should use the C compiler from"
 151             echo "$could_use.  You should change your"
 152             echo "PATH or CC variable and rerun configure."
 153         fi
 154       fi
 155   ;;
 156 esac
 157
 158 # per-target:
 159
 160 case "${target}" in
 161   v810*)                target_makefile_frag=config/mt-v810 ;;
 162 esac
 163
 164 gasdir=gas
 165 use_gnu_ld=
 166 use_gnu_as=
 167
 168 # some tools are so dependent upon X11 that if we're not building with X,
 169 # it's not even worth trying to configure, much less build, that tool.
 170
 171 case ${with_x} in
 172   yes | "")  # the default value for this tree is that X11 is available
 173         ;;
 174   no)
 175         configdirs=`echo " ${configdirs} " | sed -e 's/ tk / /;/ gash / /'`
 176         ;;
 177   *)
 178         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 179         ;;
 180 esac
 181
 182 # Some tools are only suitable for building in a "native" situation.
 183 # Those are added when we have a host==target configuration.  For cross
 184 # toolchains, we add some directories that should only be useful in a
 185 # cross-compiler.
 186
 187 is_cross_compiler=
 188
 189 if [ x"${host}" = x"${target}" ] ; then
 190         # when doing a native toolchain, don't build the targets
 191         # that are in the 'cross only' list
 192         for i in ${cross_only} ; do
 193           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 194         done
 195         is_cross_compiler=no
 196 else
 197         # similarly, don't build the targets in the 'native only'
 198         # list when building a cross compiler
 199         for i in ${native_only} ; do
 200           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 201         done
 202         is_cross_compiler=yes
 203 fi
 204
 205 copy_dirs=
 206
 207 # Handle --with-headers=XXX.  The contents of the named directory are
 208 # copied to $(tooldir)/include.
 209 if [ x"${with_headers}" != x ]; then
 210   if [ x${is_cross_compiler} = xno ]; then
 211     echo 1>&2 '***' --with-headers is only supported when cross compiling
 212     exit 1
 213   fi
 214   case "${exec_prefixoption}" in
 215   "") x=${prefix} ;;
 216   *) x=${exec_prefix} ;;
 217   esac
 218   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/include"
 219 fi
 220
 221 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 222 # contents are copied to $(tooldir)/lib.
 223 if [ x"${with_libs}" != x ]; then
 224   if [ x${is_cross_compiler} = xno ]; then
 225     echo 1>&2 '***' --with-libs is only supported when cross compiling
 226     exit 1
 227   fi
 228   # Copy the libraries in reverse order, so that files in the first named
 229   # library override files in subsequent libraries.
 230   case "${exec_prefixoption}" in
 231   "") x=${prefix} ;;
 232   *) x=${exec_prefix} ;;
 233   esac
 234   for l in ${with_libs}; do
 235     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 236   done
 237 fi
 238
 239 # If both --with-headers and --with-libs are specified, default to
 240 # --without-newlib.
 241 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 242   if [ x"${with_newlib}" = x ]; then
 243     with_newlib=no
 244   fi
 245 fi
 246
 247 # Recognize --without-newlib.
 248 if [ x${with_newlib} = xno ]; then
 249   configdirs=`echo " ${configdirs} " | sed -e 's/ newlib / /'`
 250 fi
 251
 252 # Handle ${copy_dirs}
 253 set fnord ${copy_dirs}
 254 shift
 255 while [ $# != 0 ]; do
 256   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 257     :
 258   else
 259     echo Copying $1 to $2
 260
 261     # Use the install script to create the directory and all required
 262     # parent directories.
 263     if [ -d $2 ]; then
 264       :
 265     else
 266       echo >config.temp
 267       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 268     fi
 269
 270     # Copy the directory, assuming we have tar.
 271     # FIXME: Should we use B in the second tar?  Not all systems support it.
 272     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 273
 274     # It is the responsibility of the user to correctly adjust all
 275     # symlinks.  If somebody can figure out how to handle them correctly
 276     # here, feel free to add the code.
 277
 278     echo $1 > $2/COPIED
 279   fi
 280   shift; shift
 281 done
 282
 283 # Configure extra directories which are host specific
 284
 285 case "${host}" in
 286   i[345]86-*-go32*)
 287                   configdirs="$configdirs dosrel" ;;
 288 esac
 289
 290 # Remove more programs from consideration, based on the host or
 291 # target this usually means that a port of the program doesn't
 292 # exist yet.
 293
 294 noconfigdirs=""
 295
 296 case "${host}" in
 297   i[345]86-*-netbsd*)
 298     noconfigdirs="tk fileutils"
 299     ;;
 300   i[345]86-*-vsta)
 301     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 302     ;;
 303   i[345]86-*-go32)
 304     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 305     ;;
 306 esac
 307
 308
 309 case "${target}" in
 310   *-*-netware)
 311     noconfigdirs="$noconfigdirs libg++ libstdc++ librx newlib"
 312     ;;
 313   alpha-dec-osf*)
 314     # ld works, but does not support shared libraries.  emacs doesn't
 315     # work.  newlib is not 64 bit ready.  I'm not sure about emacs19,
 316     # fileutils or grep.
 317     noconfigdirs="$noconfigdirs ld emacs emacs19 fileutils grep newlib"
 318     ;;
 319   alpha*-*-*)
 320     # newlib is not 64 bit ready
 321     noconfigdirs="$noconfigdirs newlib"
 322     ;;
 323 # start-sanitize-arc
 324   arc-*-*)
 325     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 326     ;;
 327 # end-sanitize-arc
 328   arm-*-*)
 329     noconfigdirs="$noconfigdirs ld"
 330     ;;
 331   h8300*-*-* | \
 332   h8500-*-*)
 333     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 334     ;;
 335   hppa*-*-*elf*)
 336     # Do configure ld/binutils/gas for this case.
 337     ;;
 338   hppa*-*-*)
 339     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 340     # cc is gcc, and on any system a user should be able to link cc to
 341     # whatever they want.  FIXME, emacs emacs19).
 342     case "${CC}" in
 343         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 344         *) ;;
 345     esac
 346     noconfigdirs="$noconfigdirs ld shellutils tk"
 347     ;;
 348   i[345]86-*-go32)
 349     # add the go32 support tools to the list
 350     # but don't build gdb
 351     configdirs=`echo go32 ${configdirs}`
 352     noconfigdirs="$noconfigdirs gdb libg++ libstdc++ libio librx"
 353     ;;
 354   i[345]86-*-sco*)
 355     noconfigdirs="$noconfigdirs gprof"
 356     ;;
 357   i[345]86-*-solaris2*)
 358     # The linker does static linking correctly, but the Solaris C library
 359     # has bugs such that some important functions won't work when statically
 360     # linked.  (See man pages for getpwuid, for example.)
 361     noconfigdirs="$noconfigdirs ld"
 362     ;;
 363   i[345]86-*-sysv4*)
 364     # The SYSV4 C compiler doesn't handle Emacs correctly
 365     case "${CC}" in
 366         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 367         *) ;;
 368     esac
 369     # but that's okay since emacs doesn't work anyway
 370     noconfigdirs="$noconfigdirs emacs emacs19"
 371     ;;
 372   powerpc-*-aix*)
 373     # copied from rs6000-*-* entry
 374     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 375     ;;
 376   rs6000-*-lynxos*)
 377     # a gcc built textutils will cause the linker to hang on 'join'
 378     # The CVS server code doesn't work on the RS/6000
 379     # Newlib makes problems for libg++ in crosses.
 380     noconfigdirs="$noconfigdirs gas ld newlib gprof textutils cvs"
 381     use_gnu_ld=no
 382     use_gnu_as=no
 383     ;;
 384   rs6000-*-*)
 385     # a gcc built textutils will cause the linker to hang on 'join'
 386     noconfigdirs="$noconfigdirs ld binutils gprof textutils"
 387     ;;
 388   m68k-apollo-*)
 389     noconfigdirs="$noconfigdirs ld binutils gprof"
 390     ;;
 391   mips*-*-irix5*)
 392     # The GNU linker does not support shared libraries.
 393     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 394     noconfigdirs="$noconfigdirs ld gprof emacs"
 395     ;;
 396   mips*-dec-bsd*)
 397     noconfigdirs="$noconfigdirs gprof"
 398     ;;
 399   mips*-*-bsd*)
 400     noconfigdirs="$noconfigdirs gprof ld"
 401     ;;
 402   mips*-*-*)
 403     noconfigdirs="$noconfigdirs gprof"
 404     ;;
 405   romp-*-*)
 406     noconfigdirs="bfd binutils ld gas opcodes"
 407     ;;
 408   sh-*-*)
 409     case "${host}" in
 410       i[345]86-*-vsta) ;; # don't add gprof back in
 411       *) configdirs=`echo gprof ${configdirs}` ;;
 412       i[345]86-*-go32) ;; # don't add gprof back in
 413       *) configdirs=`echo gprof ${configdirs}` ;;
 414     esac
 415     ;;
 416   sparc-*-sunos4*)
 417     if [ x${is_cross_compiler} != xno ] ; then
 418            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 419     else
 420            use_gnu_ld=no
 421     fi
 422     ;;
 423   vax-*-vms)
 424     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 425     ;;
 426   vax-*-*)
 427     noconfigdirs="$noconfigdirs newlib"
 428     ;;
 429   *-*-lynxos*)
 430      # Newlib makes problems for libg++ in crosses.
 431      noconfigdirs="$noconfigdirs newlib"
 432      ;;
 433 esac
 434
 435 # Remove the entries in $noconfigdirs from $configdirs.  If we have the
 436 # source for them, add them to $notsupp.
 437 notsupp=""
 438 for dir in . $noconfigdirs ; do
 439   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 440     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 441     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 442       notsupp="$notsupp $dir"
 443     fi
 444   fi
 445 done
 446
 447 # Produce a warning message for the subdirs we can't configure.
 448 # This isn't especially interesting in the Cygnus tree, but in the individual
 449 # FSF releases, it's important to let people know when their machine isn't
 450 # supported by the one or two programs in a package.
 451
 452 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 453   # If $appdirs is non-empty, at least one of those directories must still
 454   # be configured, or we error out.  (E.g., if the gas release supports a
 455   # specified target in some subdirs but not the gas subdir, we shouldn't
 456   # pretend that all is well.)
 457   if [ -n "$appdirs" ]; then
 458     for dir in $appdirs ; do
 459       if [ -r $dir/Makefile.in ] && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1 ; then
 460         appdirs=""
 461         break
 462       fi
 463     done
 464     if [ -n "$appdirs" ]; then
 465       echo "*** This configuration is not supported by this package." 1>&2
 466       exit 1
 467     fi
 468   fi
 469   # Okay, some application will build, or we don't care to check.  Still
 470   # notify of subdirs not getting built.
 471   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 472   echo "    ${notsupp}" 1>&2
 473   echo "    (Any other directories should still work fine.)" 1>&2
 474 fi
 475
 476 # Set with_gnu_as and with_gnu_ld as appropriate.
 477 #
 478 # This is done by determining whether or not the appropriate directory
 479 # is available, and by checking whether or not specific configurations
 480 # have requested that this magic not happen.
 481 #
 482 # The command line options always override the explicit settings in
 483 # configure.in, and the settings in configure.in override this magic.
 484 #
 485 # If the default for a toolchain is to use GNU as and ld, and you don't
 486 # want to do that, then you should use the --without-gnu-as and
 487 # --without-gnu-ld options for the configure script.
 488
 489 if [ x${use_gnu_as} = x ] ; then
 490   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 491     with_gnu_as=yes
 492     withoptions="$withoptions --with-gnu-as"
 493   fi
 494 fi
 495
 496 if [ x${use_gnu_ld} = x ] ; then
 497   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 498     with_gnu_ld=yes
 499     withoptions="$withoptions --with-gnu-ld"
 500   fi
 501 fi
 502
 503 #
 504 # Local Variables:
 505 # fill-column: 131
 506 # End:
 507 #