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 # these tools are built for the host environment
  30 #
  31 host_tools="texinfo byacc flex bison binutils ld gas gcc gdb make patch
  32             prms send-pr gprof gdbtest tgas etc expect dejagnu sim
  33             m4 autoconf ispell grep diff rcs cvs fileutils shellutils
  34             textutils wdiff find emacs emacs19 uudecode hello tar gzip indent
  35             recode release sed utils"
  36
  37
  38 # these libraries are built for the target environment, and are built after
  39 # the host libraries and the host tools (which may be a cross compiler)
  40 #
  41 target_libs="libm xiberty newlib libio librx libg++"
  42
  43
  44 # these tools are built using the target libs, and are intended to run only
  45 # in the target environment
  46 #
  47 # note: any program that *uses* libraries that are in the "target_libs"
  48 # list belongs in this list.  those programs are also very likely
  49 # candidates for the "native_only" list which follows
  50 #
  51 target_tools="examples groff"
  52
  53 ################################################################################
  54
  55 ## These two lists are of directories that are to be removed from the
  56 ## ${configdirs} list for either cross-compilations or for native-
  57 ## compilations.  For example, it doesn't make that much sense to
  58 ## cross-compile Emacs, nor is it terribly useful to compile xiberty in
  59 ## a native environment.
  60
  61 # directories to be built in the native environment only
  62 #
  63 native_only="autoconf cvs emacs emacs19 fileutils find grep groff gzip hello indent
  64              ispell m4 rcs recode sed shellutils tar textutils gash tk uudecode wdiff
  65              gprof"
  66
  67 # directories to be built in a cross environment only
  68 #
  69 cross_only="xiberty newlib"
  70
  71 ## All tools belong in one of the four categories, and are assigned above
  72 ## We assign ${configdirs} this way to remove all embedded newlines.  This
  73 ## is important because configure will choke if they ever get through.
  74 #
  75 configdirs=`echo ${host_libs} ${host_tools} ${target_libs} ${target_tools}`
  76
  77 ################################################################################
  78
  79 srctrigger=move-if-change
  80 srcname="gnu development package"
  81
  82 # This gets set non-empty for some net releases of packages.
  83 appdirs=""
  84
  85 # per-host:
  86
  87 # Work in distributions that contain no compiler tools, like Autoconf.
  88 if [ -d ${srcdir}/config ]; then
  89 case "${host}" in
  90   m68k-hp-hpux*)          host_makefile_frag=config/mh-hp300 ;;
  91   m68k-apollo-sysv*)      host_makefile_frag=config/mh-apollo68 ;;
  92   m68k-apollo-bsd*)       host_makefile_frag=config/mh-a68bsd ;;
  93   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
  94   m88k-harris-cxux*)      host_makefile_frag=config/mh-cxux ;;
  95   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
  96   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
  97   mips*-sgi-irix5*)       host_makefile_frag=config/mh-irix5 ;;
  98   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
  99   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
 100   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
 101   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
 102   i[345]86-ncr-sysv43)    host_makefile_frag=config/mh-ncrsvr43 ;;
 103   i[345]86-ncr-sysv4*)    host_makefile_frag=config/mh-ncr3000 ;;
 104   i[345]86-*-sco*)        host_makefile_frag=config/mh-sco ;;
 105   i[345]86-*-isc*)        host_makefile_frag=config/mh-sysv ;;
 106   i[345]86-*-linux*)      host_makefile_frag=config/mh-linux ;;
 107   i[345]86-*-solaris2*)   host_makefile_frag=config/mh-sysv4 ;;
 108   i[345]86-*-aix*)        host_makefile_frag=config/mh-aix386 ;;
 109   i[345]86-*-go32*)       host_makefile_frag=config/mh-go32 ;;
 110   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 111   *-ibm-aix*)             host_makefile_frag=config/mh-aix ;;
 112   *-bull-bosx*)           host_makefile_frag=config/mh-aix ;;
 113   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 114   m68k-sun-*)             host_makefile_frag=config/mh-sun3 ;;
 115   *-sun-*)                host_makefile_frag=config/mh-sun ;;
 116   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 117   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 118   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 119   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 120   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 121   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 122 esac
 123 fi
 124
 125 # The Solaris /usr/ucb/cc compiler does not appear to work.
 126 case "${host}" in
 127   sparc-sun-solaris2*)
 128       if [ "`/usr/bin/which ${CC-cc}`" = "/usr/ucb/cc" ] ; then
 129           could_use=
 130           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
 131           if [ -d /opt/cygnus/bin ] ; then
 132               if [ "$could_use" == "" ] ; then
 133                   could_use="/opt/cygnus/bin"
 134               else
 135                   could_use="$could_use or /opt/cygnus/bin"
 136               fi
 137           fi
 138         if [ "$could_use" = "" ] ; then
 139             echo "Warning: compilation may fail because you're using"
 140             echo "/usr/ucb/cc.  You should change your PATH or CC "
 141             echo "variable and rerun configure."
 142         else
 143             echo "Warning: compilation may fail because you're using"
 144             echo "/usr/ucb/cc, when you should use the C compiler from"
 145             echo "$could_use.  You should change your"
 146             echo "PATH or CC variable and rerun configure."
 147         fi
 148       fi
 149   ;;
 150 esac
 151
 152 # per-target:
 153
 154 case "${target}" in
 155   v810*)                target_makefile_frag=config/mt-v810 ;;
 156 esac
 157
 158 gasdir=gas
 159 use_gnu_ld=
 160 use_gnu_as=
 161
 162 # some tools are so dependent upon X11 that if we're not building with X,
 163 # it's not even worth trying to configure, much less build, that tool.
 164
 165 case ${with_x} in
 166   yes | "")  # the default value for this tree is that X11 is available
 167         ;;
 168   no)
 169         configdirs=`echo " ${configdirs} " | sed -e 's/ tk / /;/ gash / /'`
 170         ;;
 171   *)
 172         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 173         ;;
 174 esac
 175
 176 # Some tools are only suitable for building in a "native" situation.
 177 # Those are added when we have a host==target configuration.  For cross
 178 # toolchains, we add some directories that should only be useful in a
 179 # cross-compiler.
 180
 181 is_cross_compiler=
 182
 183 if [ x"${host}" = x"${target}" ] ; then
 184         # when doing a native toolchain, don't build the targets
 185         # that are in the 'cross only' list
 186         for i in ${cross_only} ; do
 187           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 188         done
 189         is_cross_compiler=no
 190 else
 191         # similarly, don't build the targets in the 'native only'
 192         # list when building a cross compiler
 193         for i in ${native_only} ; do
 194           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 195         done
 196         is_cross_compiler=yes
 197 fi
 198
 199 copy_dirs=
 200
 201 # Handle --with-headers=XXX.  The contents of the named directory are
 202 # copied to $(tooldir)/include.
 203 if [ x"${with_headers}" != x ]; then
 204   if [ x${is_cross_compiler} = xno ]; then
 205     echo 1>&2 '***' --with-headers is only supported when cross compiling
 206     exit 1
 207   fi
 208   case "${exec_prefixoption}" in
 209   "") x=${prefix} ;;
 210   *) x=${exec_prefix} ;;
 211   esac
 212   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/include"
 213 fi
 214
 215 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 216 # contents are copied to $(tooldir)/lib.
 217 if [ x"${with_libs}" != x ]; then
 218   if [ x${is_cross_compiler} = xno ]; then
 219     echo 1>&2 '***' --with-libs is only supported when cross compiling
 220     exit 1
 221   fi
 222   # Copy the libraries in reverse order, so that files in the first named
 223   # library override files in subsequent libraries.
 224   case "${exec_prefixoption}" in
 225   "") x=${prefix} ;;
 226   *) x=${exec_prefix} ;;
 227   esac
 228   for l in ${with_libs}; do
 229     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 230   done
 231 fi
 232
 233 # If both --with-headers and --with-libs are specified, default to
 234 # --without-newlib.
 235 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 236   if [ x"${with_newlib}" = x ]; then
 237     with_newlib=no
 238   fi
 239 fi
 240
 241 # Recognize --without-newlib.
 242 if [ x${with_newlib} = xno ]; then
 243   configdirs=`echo " ${configdirs} " | sed -e 's/ newlib / /'`
 244 fi
 245
 246 # Handle ${copy_dirs}
 247 set fnord ${copy_dirs}
 248 shift
 249 while [ $# != 0 ]; do
 250   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 251     :
 252   else
 253     echo Copying $1 to $2
 254
 255     # Use the install script to create the directory and all required
 256     # parent directories.
 257     if [ -d $2 ]; then
 258       :
 259     else
 260       echo >config.temp
 261       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 262     fi
 263
 264     # Copy the directory, assuming we have tar.
 265     # FIXME: Should we use B in the second tar?  Not all systems support it.
 266     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 267
 268     # It is the responsibility of the user to correctly adjust all
 269     # symlinks.  If somebody can figure out how to handle them correctly
 270     # here, feel free to add the code.
 271
 272     echo $1 > $2/COPIED
 273   fi
 274   shift; shift
 275 done
 276
 277 # Configure extra directories which are host specific
 278
 279 case "${host}" in
 280   i[345]86-*-go32*)
 281                   configdirs="$configdirs dosrel" ;;
 282 esac
 283
 284 # Remove more programs from consideration, based on the host or
 285 # target this usually means that a port of the program doesn't
 286 # exist yet.
 287
 288 noconfigdirs=""
 289
 290 case "${host}" in
 291   i[345]86-*-netbsd*)
 292     noconfigdirs="tk fileutils"
 293     ;;
 294   i[345]86-*-vsta)
 295     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 296     ;;
 297   i[345]86-*-go32)
 298     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 299     ;;
 300 esac
 301
 302
 303 case "${target}" in
 304   *-*-netware)
 305     noconfigdirs="$noconfigdirs libg++ libio librx newlib"
 306     ;;
 307   alpha-dec-osf*)
 308     # ld works, but does not support shared libraries.  emacs doesn't
 309     # work.  newlib is not 64 bit ready.  I'm not sure about emacs19,
 310     # fileutils or grep.
 311     noconfigdirs="$noconfigdirs ld emacs emacs19 fileutils grep newlib"
 312     ;;
 313   alpha*-*-*)
 314     # newlib is not 64 bit ready
 315     noconfigdirs="$noconfigdirs newlib"
 316     ;;
 317   h8300*-*-* | \
 318   h8500-*-*)
 319     noconfigdirs="$noconfigdirs libg++ libio librx"
 320     ;;
 321   hppa*-*-*elf*)
 322     # Do configure ld/binutils/gas for this case.
 323     ;;
 324   hppa*-*-*)
 325     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 326     # cc is gcc, and on any system a user should be able to link cc to
 327     # whatever they want.  FIXME, emacs emacs19).
 328     case "${CC}" in
 329         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 330         *) ;;
 331     esac
 332     noconfigdirs="$noconfigdirs ld shellutils"
 333     ;;
 334   i[345]86-*-go32)
 335     # add the go32 support tools to the list
 336     # but don't build gdb
 337     configdirs=`echo go32 ${configdirs}`
 338     noconfigdirs="$noconfigdirs gdb libg++ libio librx"
 339     ;;
 340   i[345]86-*-sco*)
 341     noconfigdirs="$noconfigdirs gprof"
 342     ;;
 343   i[345]86-*-solaris2*)
 344     # The linker does static linking correctly, but the Solaris C library
 345     # has bugs such that some important functions won't work when statically
 346     # linked.  (See man pages for getpwuid, for example.)
 347     noconfigdirs="$noconfigdirs ld"
 348     ;;
 349   i[345]86-*-sysv4*)
 350     # The SYSV4 C compiler doesn't handle Emacs correctly
 351     case "${CC}" in
 352         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 353         *) ;;
 354     esac
 355     # but that's okay since emacs doesn't work anyway
 356     noconfigdirs="$noconfigdirs emacs emacs19"
 357     ;;
 358   powerpc-*-aix*)
 359     # copied from rs6000-*-* entry
 360     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 361     ;;
 362   rs6000-*-lynxos*)
 363     # a gcc built textutils will cause the linker to hang on 'join'
 364     # The CVS server code doesn't work on the RS/6000
 365     # Newlib makes problems for libg++ in crosses.
 366     noconfigdirs="$noconfigdirs gas ld newlib gprof textutils cvs"
 367     use_gnu_ld=no
 368     use_gnu_as=no
 369     ;;
 370   rs6000-*-*)
 371     # a gcc built textutils will cause the linker to hang on 'join'
 372     noconfigdirs="$noconfigdirs ld binutils gprof textutils"
 373     ;;
 374   m68k-apollo-*)
 375     noconfigdirs="$noconfigdirs ld binutils gprof"
 376     ;;
 377   mips*-*-irix5*)
 378     # The GNU linker does not support shared libraries.
 379     noconfigdirs="$noconfigdirs ld gprof"
 380     ;;
 381   mips*-dec-bsd*)
 382     noconfigdirs="$noconfigdirs gprof"
 383     ;;
 384   mips*-*-bsd*)
 385     noconfigdirs="$noconfigdirs gprof ld"
 386     ;;
 387   mips*-*-*)
 388     noconfigdirs="$noconfigdirs gprof"
 389     ;;
 390   romp-*-*)
 391     noconfigdirs="bfd binutils ld gas opcodes"
 392     ;;
 393   sh-*-*)
 394     case "${host}" in
 395       i[345]86-*-vsta) ;; # don't add gprof back in
 396       *) configdirs=`echo gprof ${configdirs}` ;;
 397       i[345]86-*-go32) ;; # don't add gprof back in
 398       *) configdirs=`echo gprof ${configdirs}` ;;
 399     esac
 400     ;;
 401   sparc-*-sunos4*)
 402     if [ x${is_cross_compiler} != xno ] ; then
 403            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 404     else
 405            use_gnu_ld=no
 406     fi
 407     ;;
 408   vax-*-vms)
 409     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 410     ;;
 411   vax-*-*)
 412     noconfigdirs="$noconfigdirs newlib"
 413     ;;
 414   *-*-lynxos*)
 415      # Newlib makes problems for libg++ in crosses.
 416      noconfigdirs="$noconfigdirs newlib"
 417      ;;
 418 esac
 419
 420 # Remove the entries in $noconfigdirs from $configdirs.  If we have the
 421 # source for them, add them to $notsupp.
 422 notsupp=""
 423 for dir in . $noconfigdirs ; do
 424   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 425     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 426     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 427       notsupp="$notsupp $dir"
 428     fi
 429   fi
 430 done
 431
 432 # Produce a warning message for the subdirs we can't configure.
 433 # This isn't especially interesting in the Cygnus tree, but in the individual
 434 # FSF releases, it's important to let people know when their machine isn't
 435 # supported by the one or two programs in a package.
 436
 437 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 438   # If $appdirs is non-empty, at least one of those directories must still
 439   # be configured, or we error out.  (E.g., if the gas release supports a
 440   # specified target in some subdirs but not the gas subdir, we shouldn't
 441   # pretend that all is well.)
 442   if [ -n "$appdirs" ]; then
 443     for dir in $appdirs ; do
 444       if [ -r $dir/Makefile.in ] && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1 ; then
 445         appdirs=""
 446         break
 447       fi
 448     done
 449     if [ -n "$appdirs" ]; then
 450       echo "*** This configuration is not supported by this package." 1>&2
 451       exit 1
 452     fi
 453   fi
 454   # Okay, some application will build, or we don't care to check.  Still
 455   # notify of subdirs not getting built.
 456   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 457   echo "    ${notsupp}" 1>&2
 458   echo "    (Any other directories should still work fine.)" 1>&2
 459 fi
 460
 461 # Set with_gnu_as and with_gnu_ld as appropriate.
 462 #
 463 # This is done by determining whether or not the appropriate directory
 464 # is available, and by checking whether or not specific configurations
 465 # have requested that this magic not happen.
 466 #
 467 # The command line options always override the explicit settings in
 468 # configure.in, and the settings in configure.in override this magic.
 469 #
 470 # If the default for a toolchain is to use GNU as and ld, and you don't
 471 # want to do that, then you should use the --without-gnu-as and
 472 # --without-gnu-ld options for the configure script.
 473
 474 if [ x${use_gnu_as} = x ] ; then
 475   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 476     with_gnu_as=yes
 477     withoptions="$withoptions --with-gnu-as"
 478   fi
 479 fi
 480
 481 if [ x${use_gnu_ld} = x ] ; then
 482   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 483     with_gnu_ld=yes
 484     withoptions="$withoptions --with-gnu-ld"
 485   fi
 486 fi
 487
 488 #
 489 # Local Variables:
 490 # fill-column: 131
 491 # End:
 492 #