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 "${target}" in
 304   alpha-dec-osf1*)
 305     noconfigdirs="$noconfigdirs emacs emacs19 fileutils grep newlib"
 306     ;;
 307   alpha*-*-*)
 308     noconfigdirs="$noconfigdirs newlib"
 309     ;;
 310   h8300*-*-* | \
 311   h8500-*-*)
 312     noconfigdirs="$noconfigdirs libg++ libio librx"
 313     ;;
 314   hppa*-*-*elf*)
 315     # Do configure ld/binutils/gas for this case.
 316     ;;
 317   hppa*-*-*)
 318     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 319     # cc is gcc, and on any system a user should be able to link cc to
 320     # whatever they want.  FIXME, emacs emacs19).
 321     case "${CC}" in
 322         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 323         *) ;;
 324     esac
 325     noconfigdirs="$noconfigdirs ld shellutils"
 326     ;;
 327   i[345]86-*-go32)
 328     # add the go32 support tools to the list
 329     # but don't build gdb
 330     configdirs=`echo go32 ${configdirs}`
 331     noconfigdirs="$noconfigdirs gdb libg++ libio librx"
 332     ;;
 333   i[345]86-*-sco*)
 334     noconfigdirs="$noconfigdirs gprof"
 335     ;;
 336   i[345]86-*-solaris2*)
 337     # The linker does static linking correctly, but the Solaris C library
 338     # has bugs such that some important functions won't work when statically
 339     # linked.  (See man pages for getpwuid, for example.)
 340     noconfigdirs="$noconfigdirs ld"
 341     ;;
 342   i[345]86-*-sysv4*)
 343     # The SYSV4 C compiler doesn't handle Emacs correctly
 344     case "${CC}" in
 345         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 346         *) ;;
 347     esac
 348     # but that's okay since emacs doesn't work anyway
 349     noconfigdirs="$noconfigdirs emacs emacs19"
 350     ;;
 351   powerpc-*-aix*)
 352     # copied from rs6000-*-* entry
 353     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 354     ;;
 355   rs6000-*-lynxos*)
 356     # a gcc built textutils will cause the linker to hang on 'join'
 357     # The CVS server code doesn't work on the RS/6000
 358     # Newlib makes problems for libg++ in crosses.
 359     noconfigdirs="$noconfigdirs gas ld newlib gprof textutils cvs"
 360     use_gnu_ld=no
 361     use_gnu_as=no
 362     ;;
 363   rs6000-*-*)
 364     # a gcc built textutils will cause the linker to hang on 'join'
 365     noconfigdirs="$noconfigdirs ld binutils gprof textutils"
 366     ;;
 367   m68k-apollo-*)
 368     noconfigdirs="$noconfigdirs ld binutils gprof"
 369     ;;
 370   mips*-*-irix5*)
 371     # The GNU linker does not support shared libraries.
 372     noconfigdirs="$noconfigdirs ld gprof"
 373     ;;
 374   mips*-dec-bsd*)
 375     noconfigdirs="$noconfigdirs gprof"
 376     ;;
 377   mips*-*-bsd*)
 378     noconfigdirs="$noconfigdirs gprof ld"
 379     ;;
 380   mips*-*-*)
 381     noconfigdirs="$noconfigdirs gprof"
 382     ;;
 383   romp-*-*)
 384     noconfigdirs="bfd binutils ld gas opcodes"
 385     ;;
 386   sh-*-*)
 387     case "${host}" in
 388       i[345]86-*-vsta) ;; # don't add gprof back in
 389       *) configdirs=`echo gprof ${configdirs}` ;;
 390       i[345]86-*-go32) ;; # don't add gprof back in
 391       *) configdirs=`echo gprof ${configdirs}` ;;
 392     esac
 393     ;;
 394   sparc-*-sunos4*)
 395     if [ x${is_cross_compiler} != xno ] ; then
 396            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 397     else
 398            use_gnu_ld=no
 399     fi
 400     ;;
 401   vax-*-vms)
 402     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 403     ;;
 404   vax-*-*)
 405     noconfigdirs="$noconfigdirs newlib"
 406     ;;
 407   *-*-lynxos*)
 408      # Newlib makes problems for libg++ in crosses.
 409      noconfigdirs="$noconfigdirs newlib"
 410      ;;
 411 esac
 412
 413 # Remove the entries in $noconfigdirs from $configdirs.  If we have the
 414 # source for them, add them to $notsupp.
 415 notsupp=""
 416 for dir in . $noconfigdirs ; do
 417   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 418     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 419     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 420       notsupp="$notsupp $dir"
 421     fi
 422   fi
 423 done
 424
 425 # Produce a warning message for the subdirs we can't configure.
 426 # This isn't especially interesting in the Cygnus tree, but in the individual
 427 # FSF releases, it's important to let people know when their machine isn't
 428 # supported by the one or two programs in a package.
 429
 430 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 431   # If $appdirs is non-empty, at least one of those directories must still
 432   # be configured, or we error out.  (E.g., if the gas release supports a
 433   # specified target in some subdirs but not the gas subdir, we shouldn't
 434   # pretend that all is well.)
 435   if [ -n "$appdirs" ]; then
 436     for dir in $appdirs ; do
 437       if [ -r $dir/Makefile.in ] && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1 ; then
 438         appdirs=""
 439         break
 440       fi
 441     done
 442     if [ -n "$appdirs" ]; then
 443       echo "*** This configuration is not supported by this package." 1>&2
 444       exit 1
 445     fi
 446   fi
 447   # Okay, some application will build, or we don't care to check.  Still
 448   # notify of subdirs not getting built.
 449   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 450   echo "    ${notsupp}" 1>&2
 451   echo "    (Any other directories should still work fine.)" 1>&2
 452 fi
 453
 454 # Set with_gnu_as and with_gnu_ld as appropriate.
 455 #
 456 # This is done by determining whether or not the appropriate directory
 457 # is available, and by checking whether or not specific configurations
 458 # have requested that this magic not happen.
 459 #
 460 # The command line options always override the explicit settings in
 461 # configure.in, and the settings in configure.in override this magic.
 462 #
 463 # If the default for a toolchain is to use GNU as and ld, and you don't
 464 # want to do that, then you should use the --without-gnu-as and
 465 # --without-gnu-ld options for the configure script.
 466
 467 if [ x${use_gnu_as} = x ] ; then
 468   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 469     with_gnu_as=yes
 470     withoptions="$withoptions --with-gnu-as"
 471   fi
 472 fi
 473
 474 if [ x${use_gnu_ld} = x ] ; then
 475   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 476     with_gnu_ld=yes
 477     withoptions="$withoptions --with-gnu-ld"
 478   fi
 479 fi
 480
 481 #
 482 # Local Variables:
 483 # fill-column: 131
 484 # End:
 485 #