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"
  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   i[345]86-*-netware*)  target_makefile_frag=config/mt-netware ;;
 190   powerpc-*-netware*)   target_makefile_frag=config/mt-netware ;;
 191 esac
 192
 193 gasdir=gas
 194 use_gnu_ld=
 195 use_gnu_as=
 196
 197 # some tools are so dependent upon X11 that if we're not building with X,
 198 # it's not even worth trying to configure, much less build, that tool.
 199
 200 case ${with_x} in
 201   yes | "")  # the default value for this tree is that X11 is available
 202         ;;
 203   no)
 204         configdirs=`echo " ${configdirs} " | sed -e 's/ tk / /;/ gash / /'`
 205         ;;
 206   *)
 207         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 208         ;;
 209 esac
 210
 211 # Some tools are only suitable for building in a "native" situation.
 212 # Those are added when we have a host==target configuration.  For cross
 213 # toolchains, we add some directories that should only be useful in a
 214 # cross-compiler.
 215
 216 is_cross_compiler=
 217
 218 if [ x"${host}" = x"${target}" ] ; then
 219         # when doing a native toolchain, don't build the targets
 220         # that are in the 'cross only' list
 221         for i in ${cross_only} ; do
 222           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 223         done
 224         is_cross_compiler=no
 225 else
 226         # similarly, don't build the targets in the 'native only'
 227         # list when building a cross compiler
 228         for i in ${native_only} ; do
 229           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 230         done
 231         is_cross_compiler=yes
 232 fi
 233
 234 copy_dirs=
 235
 236 # Handle --with-headers=XXX.  The contents of the named directory are
 237 # copied to $(tooldir)/include.
 238 if [ x"${with_headers}" != x ]; then
 239   if [ x${is_cross_compiler} = xno ]; then
 240     echo 1>&2 '***' --with-headers is only supported when cross compiling
 241     exit 1
 242   fi
 243   case "${exec_prefixoption}" in
 244   "") x=${prefix} ;;
 245   *) x=${exec_prefix} ;;
 246   esac
 247   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/include"
 248 fi
 249
 250 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 251 # contents are copied to $(tooldir)/lib.
 252 if [ x"${with_libs}" != x ]; then
 253   if [ x${is_cross_compiler} = xno ]; then
 254     echo 1>&2 '***' --with-libs is only supported when cross compiling
 255     exit 1
 256   fi
 257   # Copy the libraries in reverse order, so that files in the first named
 258   # library override files in subsequent libraries.
 259   case "${exec_prefixoption}" in
 260   "") x=${prefix} ;;
 261   *) x=${exec_prefix} ;;
 262   esac
 263   for l in ${with_libs}; do
 264     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 265   done
 266 fi
 267
 268 # If both --with-headers and --with-libs are specified, default to
 269 # --without-newlib.
 270 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 271   if [ x"${with_newlib}" = x ]; then
 272     with_newlib=no
 273   fi
 274 fi
 275
 276 # Recognize --without-newlib.
 277 if [ x${with_newlib} = xno ]; then
 278   configdirs=`echo " ${configdirs} " | sed -e 's/ newlib / /'`
 279 fi
 280
 281 # Handle ${copy_dirs}
 282 set fnord ${copy_dirs}
 283 shift
 284 while [ $# != 0 ]; do
 285   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 286     :
 287   else
 288     echo Copying $1 to $2
 289
 290     # Use the install script to create the directory and all required
 291     # parent directories.
 292     if [ -d $2 ]; then
 293       :
 294     else
 295       echo >config.temp
 296       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 297     fi
 298
 299     # Copy the directory, assuming we have tar.
 300     # FIXME: Should we use B in the second tar?  Not all systems support it.
 301     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 302
 303     # It is the responsibility of the user to correctly adjust all
 304     # symlinks.  If somebody can figure out how to handle them correctly
 305     # here, feel free to add the code.
 306
 307     echo $1 > $2/COPIED
 308   fi
 309   shift; shift
 310 done
 311
 312 # Configure extra directories which are host specific
 313
 314 case "${host}" in
 315   i[345]86-*-go32*)
 316                   configdirs="$configdirs dosrel" ;;
 317 esac
 318
 319 # Remove more programs from consideration, based on the host or
 320 # target this usually means that a port of the program doesn't
 321 # exist yet.
 322
 323 noconfigdirs=""
 324
 325 case "${host}" in
 326   i[345]86-*-netbsd*)
 327     noconfigdirs="tk fileutils"
 328     ;;
 329   i[345]86-*-vsta)
 330     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 331     ;;
 332   i[345]86-*-go32)
 333     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 334     ;;
 335 esac
 336
 337
 338 case "${target}" in
 339   *-*-netware)
 340     noconfigdirs="$noconfigdirs libg++ libstdc++ librx newlib xiberty"
 341     ;;
 342   alpha-dec-osf*)
 343     # ld works, but does not support shared libraries.  emacs doesn't
 344     # work.  newlib is not 64 bit ready.  I'm not sure about emacs19,
 345     # fileutils or grep.
 346     noconfigdirs="$noconfigdirs ld emacs emacs19 fileutils grep newlib"
 347     ;;
 348   alpha*-*-*)
 349     # newlib is not 64 bit ready
 350     noconfigdirs="$noconfigdirs newlib"
 351     ;;
 352 # start-sanitize-arc
 353   arc-*-*)
 354     # Leave g++ for later.
 355     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 356     ;;
 357 # end-sanitize-arc
 358 # start-sanitize-psion
 359   arm-*-pe*)
 360     # Leave g++ for later.
 361     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 362     ;;
 363 # end-sanitize-psion
 364   arm-*-*)
 365     noconfigdirs="$noconfigdirs ld"
 366     ;;
 367   h8300*-*-* | \
 368   h8500-*-*)
 369     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 370     ;;
 371   hppa*-*-*elf*)
 372     # Do configure ld/binutils/gas for this case.
 373     ;;
 374   hppa*-*-*)
 375     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 376     # cc is gcc, and on any system a user should be able to link cc to
 377     # whatever they want.  FIXME, emacs emacs19).
 378     case "${CC}" in
 379         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 380         *) ;;
 381     esac
 382     noconfigdirs="$noconfigdirs ld shellutils"
 383     ;;
 384   i[345]86-*-go32)
 385     # add the go32 support tools to the list
 386     # but don't build gdb
 387     configdirs=`echo go32 ${configdirs}`
 388     noconfigdirs="$noconfigdirs gdb libg++ libstdc++ libio librx"
 389     ;;
 390   i[345]86-*-sco*)
 391     noconfigdirs="$noconfigdirs gprof"
 392     ;;
 393   i[345]86-*-solaris2*)
 394     # The linker does static linking correctly, but the Solaris C library
 395     # has bugs such that some important functions won't work when statically
 396     # linked.  (See man pages for getpwuid, for example.)
 397     noconfigdirs="$noconfigdirs ld"
 398     ;;
 399   i[345]86-*-sysv4*)
 400     # The SYSV4 C compiler doesn't handle Emacs correctly
 401     case "${CC}" in
 402         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 403         *) ;;
 404     esac
 405     # but that's okay since emacs doesn't work anyway
 406     noconfigdirs="$noconfigdirs emacs emacs19"
 407     ;;
 408   powerpc-*-aix*)
 409     # copied from rs6000-*-* entry
 410     noconfigdirs="$noconfigdirs gas ld binutils gprof textutils cvs"
 411     ;;
 412   rs6000-*-lynxos*)
 413     # a gcc built textutils will cause the linker to hang on 'join'
 414     # The CVS server code doesn't work on the RS/6000
 415     # Newlib makes problems for libg++ in crosses.
 416     noconfigdirs="$noconfigdirs gas ld newlib gprof textutils cvs"
 417     use_gnu_ld=no
 418     use_gnu_as=no
 419     ;;
 420   rs6000-*-*)
 421     # a gcc built textutils will cause the linker to hang on 'join'
 422     noconfigdirs="$noconfigdirs gas ld binutils gprof textutils"
 423     ;;
 424   m68k-apollo-*)
 425     noconfigdirs="$noconfigdirs ld binutils gprof"
 426     ;;
 427   mips*-*-irix5*)
 428     # The GNU linker does not support shared libraries.
 429     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 430     noconfigdirs="$noconfigdirs ld gprof emacs"
 431     ;;
 432   mips*-dec-bsd*)
 433     noconfigdirs="$noconfigdirs gprof"
 434     ;;
 435   mips*-*-bsd*)
 436     noconfigdirs="$noconfigdirs gprof ld"
 437     ;;
 438   mips*-*-*)
 439     noconfigdirs="$noconfigdirs gprof"
 440     ;;
 441   romp-*-*)
 442     noconfigdirs="bfd binutils ld gas opcodes"
 443     ;;
 444   sh-*-*)
 445     case "${host}" in
 446       i[345]86-*-vsta) ;; # don't add gprof back in
 447       *) configdirs=`echo gprof ${configdirs}` ;;
 448       i[345]86-*-go32) ;; # don't add gprof back in
 449       *) configdirs=`echo gprof ${configdirs}` ;;
 450     esac
 451     ;;
 452   sparc-*-sunos4*)
 453     if [ x${is_cross_compiler} != xno ] ; then
 454            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 455     else
 456            use_gnu_ld=no
 457     fi
 458     ;;
 459   vax-*-vms)
 460     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 461     ;;
 462   vax-*-*)
 463     noconfigdirs="$noconfigdirs newlib"
 464     ;;
 465   *-*-lynxos*)
 466      # Newlib makes problems for libg++ in crosses.
 467      noconfigdirs="$noconfigdirs newlib"
 468      ;;
 469 esac
 470
 471 # Remove the entries in $noconfigdirs from $configdirs.  If we have the
 472 # source for them, add them to $notsupp.
 473 notsupp=""
 474 for dir in . $noconfigdirs ; do
 475   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 476     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 477     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 478       notsupp="$notsupp $dir"
 479     fi
 480   fi
 481 done
 482
 483 # Produce a warning message for the subdirs we can't configure.
 484 # This isn't especially interesting in the Cygnus tree, but in the individual
 485 # FSF releases, it's important to let people know when their machine isn't
 486 # supported by the one or two programs in a package.
 487
 488 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 489   # If $appdirs is non-empty, at least one of those directories must still
 490   # be configured, or we error out.  (E.g., if the gas release supports a
 491   # specified target in some subdirs but not the gas subdir, we shouldn't
 492   # pretend that all is well.)
 493   if [ -n "$appdirs" ]; then
 494     for dir in $appdirs ; do
 495       if [ -r $dir/Makefile.in ] && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1 ; then
 496         appdirs=""
 497         break
 498       fi
 499     done
 500     if [ -n "$appdirs" ]; then
 501       echo "*** This configuration is not supported by this package." 1>&2
 502       exit 1
 503     fi
 504   fi
 505   # Okay, some application will build, or we don't care to check.  Still
 506   # notify of subdirs not getting built.
 507   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 508   echo "    ${notsupp}" 1>&2
 509   echo "    (Any other directories should still work fine.)" 1>&2
 510 fi
 511
 512 # Set with_gnu_as and with_gnu_ld as appropriate.
 513 #
 514 # This is done by determining whether or not the appropriate directory
 515 # is available, and by checking whether or not specific configurations
 516 # have requested that this magic not happen.
 517 #
 518 # The command line options always override the explicit settings in
 519 # configure.in, and the settings in configure.in override this magic.
 520 #
 521 # If the default for a toolchain is to use GNU as and ld, and you don't
 522 # want to do that, then you should use the --without-gnu-as and
 523 # --without-gnu-ld options for the configure script.
 524
 525 if [ x${use_gnu_as} = x ] ; then
 526   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 527     with_gnu_as=yes
 528     withoptions="$withoptions --with-gnu-as"
 529   fi
 530 fi
 531
 532 if [ x${use_gnu_ld} = x ] ; then
 533   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 534     with_gnu_ld=yes
 535     withoptions="$withoptions --with-gnu-ld"
 536   fi
 537 fi
 538
 539 if [ x${enable_shared} = xyes ]; then
 540   case "${target}" in
 541     hppa*)              target_makefile_frag=config/mt-papic ;;
 542     i[345]86-*)         target_makefile_frag=config/mt-x86pic ;;
 543     *)                  target_makefile_frag=config/mt-${target_cpu}pic ;;
 544   esac
 545 fi
 546
 547 #
 548 # Local Variables:
 549 # fill-column: 131
 550 # End:
 551 #