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 [ -n "${host_makefile_frag}" ] && [ -f ${srcdir}/${waugh} ]; then
 175     cat ${srcdir}/${host_makefile_frag} > mh-frag
 176     cat ${srcdir}/${waugh} >> mh-frag
 177     host_makefile_frag=mh-frag
 178   fi
 179 fi
 180
 181 # per-target:
 182
 183 case "${target}" in
 184   v810*)                target_makefile_frag=config/mt-v810 ;;
 185 esac
 186
 187 gasdir=gas
 188 use_gnu_ld=
 189 use_gnu_as=
 190
 191 # some tools are so dependent upon X11 that if we're not building with X,
 192 # it's not even worth trying to configure, much less build, that tool.
 193
 194 case ${with_x} in
 195   yes | "")  # the default value for this tree is that X11 is available
 196         ;;
 197   no)
 198         configdirs=`echo " ${configdirs} " | sed -e 's/ tk / /;/ gash / /'`
 199         ;;
 200   *)
 201         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 202         ;;
 203 esac
 204
 205 # Some tools are only suitable for building in a "native" situation.
 206 # Those are added when we have a host==target configuration.  For cross
 207 # toolchains, we add some directories that should only be useful in a
 208 # cross-compiler.
 209
 210 is_cross_compiler=
 211
 212 if [ x"${host}" = x"${target}" ] ; then
 213         # when doing a native toolchain, don't build the targets
 214         # that are in the 'cross only' list
 215         for i in ${cross_only} ; do
 216           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 217         done
 218         is_cross_compiler=no
 219 else
 220         # similarly, don't build the targets in the 'native only'
 221         # list when building a cross compiler
 222         for i in ${native_only} ; do
 223           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 224         done
 225         is_cross_compiler=yes
 226 fi
 227
 228 copy_dirs=
 229
 230 # Handle --with-headers=XXX.  The contents of the named directory are
 231 # copied to $(tooldir)/include.
 232 if [ x"${with_headers}" != x ]; then
 233   if [ x${is_cross_compiler} = xno ]; then
 234     echo 1>&2 '***' --with-headers is only supported when cross compiling
 235     exit 1
 236   fi
 237   case "${exec_prefixoption}" in
 238   "") x=${prefix} ;;
 239   *) x=${exec_prefix} ;;
 240   esac
 241   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/include"
 242 fi
 243
 244 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 245 # contents are copied to $(tooldir)/lib.
 246 if [ x"${with_libs}" != x ]; then
 247   if [ x${is_cross_compiler} = xno ]; then
 248     echo 1>&2 '***' --with-libs is only supported when cross compiling
 249     exit 1
 250   fi
 251   # Copy the libraries in reverse order, so that files in the first named
 252   # library override files in subsequent libraries.
 253   case "${exec_prefixoption}" in
 254   "") x=${prefix} ;;
 255   *) x=${exec_prefix} ;;
 256   esac
 257   for l in ${with_libs}; do
 258     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 259   done
 260 fi
 261
 262 # If both --with-headers and --with-libs are specified, default to
 263 # --without-newlib.
 264 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 265   if [ x"${with_newlib}" = x ]; then
 266     with_newlib=no
 267   fi
 268 fi
 269
 270 # Recognize --without-newlib.
 271 if [ x${with_newlib} = xno ]; then
 272   configdirs=`echo " ${configdirs} " | sed -e 's/ newlib / /'`
 273 fi
 274
 275 # Handle ${copy_dirs}
 276 set fnord ${copy_dirs}
 277 shift
 278 while [ $# != 0 ]; do
 279   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 280     :
 281   else
 282     echo Copying $1 to $2
 283
 284     # Use the install script to create the directory and all required
 285     # parent directories.
 286     if [ -d $2 ]; then
 287       :
 288     else
 289       echo >config.temp
 290       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 291     fi
 292
 293     # Copy the directory, assuming we have tar.
 294     # FIXME: Should we use B in the second tar?  Not all systems support it.
 295     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 296
 297     # It is the responsibility of the user to correctly adjust all
 298     # symlinks.  If somebody can figure out how to handle them correctly
 299     # here, feel free to add the code.
 300
 301     echo $1 > $2/COPIED
 302   fi
 303   shift; shift
 304 done
 305
 306 # Configure extra directories which are host specific
 307
 308 case "${host}" in
 309   i[345]86-*-go32*)
 310                   configdirs="$configdirs dosrel" ;;
 311 esac
 312
 313 # Remove more programs from consideration, based on the host or
 314 # target this usually means that a port of the program doesn't
 315 # exist yet.
 316
 317 noconfigdirs=""
 318
 319 case "${host}" in
 320   i[345]86-*-netbsd*)
 321     noconfigdirs="tk fileutils"
 322     ;;
 323   i[345]86-*-vsta)
 324     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 325     ;;
 326   i[345]86-*-go32)
 327     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 328     ;;
 329 esac
 330
 331
 332 case "${target}" in
 333   *-*-netware)
 334     noconfigdirs="$noconfigdirs libg++ libstdc++ librx newlib xiberty"
 335     ;;
 336   alpha-dec-osf*)
 337     # ld works, but does not support shared libraries.  emacs doesn't
 338     # work.  newlib is not 64 bit ready.  I'm not sure about emacs19,
 339     # fileutils or grep.
 340     noconfigdirs="$noconfigdirs ld emacs emacs19 fileutils grep newlib"
 341     ;;
 342   alpha*-*-*)
 343     # newlib is not 64 bit ready
 344     noconfigdirs="$noconfigdirs newlib"
 345     ;;
 346 # start-sanitize-arc
 347   arc-*-*)
 348     # Leave g++ for later.
 349     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 350     ;;
 351 # end-sanitize-arc
 352 # start-sanitize-psion
 353   arm-*-pe*)
 354     # Leave g++ for later.
 355     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 356     ;;
 357 # end-sanitize-psion
 358   arm-*-*)
 359     noconfigdirs="$noconfigdirs ld"
 360     ;;
 361   h8300*-*-* | \
 362   h8500-*-*)
 363     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 364     ;;
 365   hppa*-*-*elf*)
 366     # Do configure ld/binutils/gas for this case.
 367     ;;
 368   hppa*-*-*)
 369     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 370     # cc is gcc, and on any system a user should be able to link cc to
 371     # whatever they want.  FIXME, emacs emacs19).
 372     case "${CC}" in
 373         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 374         *) ;;
 375     esac
 376     noconfigdirs="$noconfigdirs ld shellutils"
 377     ;;
 378   i[345]86-*-go32)
 379     # add the go32 support tools to the list
 380     # but don't build gdb
 381     configdirs=`echo go32 ${configdirs}`
 382     noconfigdirs="$noconfigdirs gdb libg++ libstdc++ libio librx"
 383     ;;
 384   i[345]86-*-sco*)
 385     noconfigdirs="$noconfigdirs gprof"
 386     ;;
 387   i[345]86-*-solaris2*)
 388     # The linker does static linking correctly, but the Solaris C library
 389     # has bugs such that some important functions won't work when statically
 390     # linked.  (See man pages for getpwuid, for example.)
 391     noconfigdirs="$noconfigdirs ld"
 392     ;;
 393   i[345]86-*-sysv4*)
 394     # The SYSV4 C compiler doesn't handle Emacs correctly
 395     case "${CC}" in
 396         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 397         *) ;;
 398     esac
 399     # but that's okay since emacs doesn't work anyway
 400     noconfigdirs="$noconfigdirs emacs emacs19"
 401     ;;
 402   powerpc-*-aix*)
 403     # copied from rs6000-*-* entry
 404     noconfigdirs="$noconfigdirs gas ld binutils gprof textutils cvs"
 405     ;;
 406   rs6000-*-lynxos*)
 407     # a gcc built textutils will cause the linker to hang on 'join'
 408     # The CVS server code doesn't work on the RS/6000
 409     # Newlib makes problems for libg++ in crosses.
 410     noconfigdirs="$noconfigdirs gas ld newlib gprof textutils cvs"
 411     use_gnu_ld=no
 412     use_gnu_as=no
 413     ;;
 414   rs6000-*-*)
 415     # a gcc built textutils will cause the linker to hang on 'join'
 416     noconfigdirs="$noconfigdirs gas ld binutils gprof textutils"
 417     ;;
 418   m68k-apollo-*)
 419     noconfigdirs="$noconfigdirs ld binutils gprof"
 420     ;;
 421   mips*-*-irix5*)
 422     # The GNU linker does not support shared libraries.
 423     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 424     noconfigdirs="$noconfigdirs ld gprof emacs"
 425     ;;
 426   mips*-dec-bsd*)
 427     noconfigdirs="$noconfigdirs gprof"
 428     ;;
 429   mips*-*-bsd*)
 430     noconfigdirs="$noconfigdirs gprof ld"
 431     ;;
 432   mips*-*-*)
 433     noconfigdirs="$noconfigdirs gprof"
 434     ;;
 435   romp-*-*)
 436     noconfigdirs="bfd binutils ld gas opcodes"
 437     ;;
 438   sh-*-*)
 439     case "${host}" in
 440       i[345]86-*-vsta) ;; # don't add gprof back in
 441       *) configdirs=`echo gprof ${configdirs}` ;;
 442       i[345]86-*-go32) ;; # don't add gprof back in
 443       *) configdirs=`echo gprof ${configdirs}` ;;
 444     esac
 445     ;;
 446   sparc-*-sunos4*)
 447     if [ x${is_cross_compiler} != xno ] ; then
 448            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 449     else
 450            use_gnu_ld=no
 451     fi
 452     ;;
 453   vax-*-vms)
 454     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 455     ;;
 456   vax-*-*)
 457     noconfigdirs="$noconfigdirs newlib"
 458     ;;
 459   *-*-lynxos*)
 460      # Newlib makes problems for libg++ in crosses.
 461      noconfigdirs="$noconfigdirs newlib"
 462      ;;
 463 esac
 464
 465 # Remove the entries in $noconfigdirs from $configdirs.  If we have the
 466 # source for them, add them to $notsupp.
 467 notsupp=""
 468 for dir in . $noconfigdirs ; do
 469   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 470     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 471     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 472       notsupp="$notsupp $dir"
 473     fi
 474   fi
 475 done
 476
 477 # Produce a warning message for the subdirs we can't configure.
 478 # This isn't especially interesting in the Cygnus tree, but in the individual
 479 # FSF releases, it's important to let people know when their machine isn't
 480 # supported by the one or two programs in a package.
 481
 482 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 483   # If $appdirs is non-empty, at least one of those directories must still
 484   # be configured, or we error out.  (E.g., if the gas release supports a
 485   # specified target in some subdirs but not the gas subdir, we shouldn't
 486   # pretend that all is well.)
 487   if [ -n "$appdirs" ]; then
 488     for dir in $appdirs ; do
 489       if [ -r $dir/Makefile.in ] && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1 ; then
 490         appdirs=""
 491         break
 492       fi
 493     done
 494     if [ -n "$appdirs" ]; then
 495       echo "*** This configuration is not supported by this package." 1>&2
 496       exit 1
 497     fi
 498   fi
 499   # Okay, some application will build, or we don't care to check.  Still
 500   # notify of subdirs not getting built.
 501   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 502   echo "    ${notsupp}" 1>&2
 503   echo "    (Any other directories should still work fine.)" 1>&2
 504 fi
 505
 506 # Set with_gnu_as and with_gnu_ld as appropriate.
 507 #
 508 # This is done by determining whether or not the appropriate directory
 509 # is available, and by checking whether or not specific configurations
 510 # have requested that this magic not happen.
 511 #
 512 # The command line options always override the explicit settings in
 513 # configure.in, and the settings in configure.in override this magic.
 514 #
 515 # If the default for a toolchain is to use GNU as and ld, and you don't
 516 # want to do that, then you should use the --without-gnu-as and
 517 # --without-gnu-ld options for the configure script.
 518
 519 if [ x${use_gnu_as} = x ] ; then
 520   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 521     with_gnu_as=yes
 522     withoptions="$withoptions --with-gnu-as"
 523   fi
 524 fi
 525
 526 if [ x${use_gnu_ld} = x ] ; then
 527   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 528     with_gnu_ld=yes
 529     withoptions="$withoptions --with-gnu-ld"
 530   fi
 531 fi
 532
 533 if [ x${enable_shared} = xyes ]; then
 534   case "${target}" in
 535     hppa*-*-*)          target_makefile_frag=config/mt-papic ;;
 536     i[345]86-*-*)       target_makefile_frag=config/mt-x86pic ;;
 537     *-*-*)              target_makefile_frag=config/mt-${target_cpu}pic ;;
 538   esac
 539 fi
 540
 541 #
 542 # Local Variables:
 543 # fill-column: 131
 544 # End:
 545 #