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 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 libg++"
  42
  43
  44 # these tools are built using the target libs, and are intended to run only
  45 # in the target environment.  we currently have none.
  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="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 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 # per-host:
  83
  84 # Work in distributions that contain no compiler tools, like Autoconf.
  85 if [ -d ${srcdir}/config ]; then
  86 case "${host}" in
  87   m68k-hp-hpux*)          host_makefile_frag=config/mh-hp300 ;;
  88   m68k-apollo-sysv*)      host_makefile_frag=config/mh-apollo68 ;;
  89   m68k-apollo-bsd*)       host_makefile_frag=config/mh-a68bsd ;;
  90   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
  91   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
  92   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
  93   mips*-sgi-irix5*)       host_makefile_frag=config/mh-irix5 ;;
  94   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
  95   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
  96   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
  97   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
  98   i[34]86-ncr-sysv4*)     host_makefile_frag=config/mh-ncr3000 ;;
  99   i[34]86-*-sco*)         host_makefile_frag=config/mh-sco ;;
 100   i[34]86-*-isc*)         host_makefile_frag=config/mh-sysv ;;
 101   i[34]86-*-linux*)       host_makefile_frag=config/mh-linux ;;
 102   i[34]86-*-solaris2*)    host_makefile_frag=config/mh-sysv4 ;;
 103   i[34]86-*-aix*)         host_makefile_frag=config/mh-aix386 ;;
 104   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 105   *-ibm-aix*)             host_makefile_frag=config/mh-aix ;;
 106   *-bull-bosx*)           host_makefile_frag=config/mh-aix ;;
 107   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 108   m68k-sun-*)             host_makefile_frag=config/mh-sun3 ;;
 109   *-sun-*)                host_makefile_frag=config/mh-sun ;;
 110   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 111   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 112   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxosrs6k ;;
 113   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 114   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 115   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 116 esac
 117 fi
 118
 119 # per-target:
 120
 121 gasdir=gas
 122 use_gnu_ld=
 123 use_gnu_as=
 124
 125 # some tools are so dependent upon X11 that if we're not building with X,
 126 # it's not even worth trying to configure, much less build, that tool.
 127
 128 case ${with_x} in
 129   yes | "")  # the default value for this tree is that X11 is available
 130         ;;
 131   no)
 132         configdirs=`echo " ${configdirs} " | sed -e 's/ tk / /;/ gash / /'`
 133         ;;
 134   *)
 135         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 136         ;;
 137 esac
 138
 139
 140
 141 # Some tools are only suitable for building in a "native" situation.
 142 # Those are added when we have a host==target configuration.  For cross
 143 # toolchains, we add some directories that should only be useful in a
 144 # cross-compiler.
 145
 146 if [ x"${host}" = x"${target}" ] ; then
 147         # when doing a native toolchain, don't build the targets
 148         # that are in the 'cross only' list
 149         for i in ${cross_only} ; do
 150           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 151         done
 152 else
 153         # similarly, don't build the targets in the 'native only'
 154         # list when building a cross compiler
 155         for i in ${native_only} ; do
 156           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 157         done
 158 fi
 159
 160 # Remove more programs from consideration, based on the host or
 161 # target this usually means that a port of the program doesn't
 162 # exist yet.
 163
 164 noconfigdirs=""
 165
 166 case "${host}" in
 167   i[34]86-*-netbsd*)
 168     noconfigdirs="tk fileutils"
 169     ;;
 170   i[34]86-*-vsta)
 171     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 172     ;;
 173   i[34]86-*-go32)
 174     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 175     ;;
 176 esac
 177
 178 case "${target}" in
 179   alpha-dec-osf1*)
 180     noconfigdirs="$noconfigdirs emacs fileutils grep newlib"
 181     ;;
 182   alpha*-*-*)
 183     noconfigdirs="$noconfigdirs newlib"
 184     ;;
 185   h8300*-*-* | \
 186   h8500-*-*)
 187     noconfigdirs="$noconfigdirs libg++ libio"
 188     ;;
 189   hppa*-*-*elf*)
 190     # Do configure ld/binutils/gas for this case.
 191     ;;
 192   hppa*-*-*)
 193     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 194     # cc is gcc, and on any system a user should be able to link cc to
 195     # whatever they want.  FIXME, emacs).
 196     case "${CC}" in
 197         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 198         *) ;;
 199     esac
 200     noconfigdirs="$noconfigdirs ld shellutils"
 201     ;;
 202   i[34]86-*-go32)
 203     # add the go32 support tools to the list
 204     configdirs=`echo go32 ${configdirs}`
 205     ;;
 206   i[34]86-*-sco*)
 207     noconfigdirs="$noconfigdirs gprof"
 208     ;;
 209   i[34]86-*-solaris2*)
 210     # The linker does static linking correctly, but the Solaris C library
 211     # has bugs such that some important functions won't work when statically
 212     # linked.  (See man pages for getpwuid, for example.)
 213     noconfigdirs="$noconfigdirs ld"
 214     ;;
 215   i[34]86-*-sysv4*)
 216     # The SYSV4 C compiler doesn't handle Emacs correctly
 217     case "${CC}" in
 218         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 219         *) ;;
 220     esac
 221     # but that's okay since emacs doesn't work anyway
 222     noconfigdirs="$noconfigdirs emacs"
 223
 224     # static versions of several key libraries are not available,
 225     # so building our entire toolchain is impossible until
 226     # the GNU linker supports shared libraries
 227     noconfigdirs="$noconfigdirs ld"
 228     ;;
 229   powerpc-*-aix*)
 230     # copied from rs6000-*-* entry
 231     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 232     ;;
 233   rs6000-*-*)
 234     # a gcc built textutils will cause the linker to hang on 'join'
 235     # The CVS server code doesn't work on the RS/6000
 236     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 237     ;;
 238   m68k-apollo-*)
 239     noconfigdirs="$noconfigdirs ld binutils gprof"
 240     ;;
 241   mips*-*-irix5*)
 242     # The GNU linker does not support shared libraries.
 243     noconfigdirs="$noconfigdirs ld gprof"
 244     ;;
 245   mips*-dec-bsd*)
 246     noconfigdirs="$noconfigdirs gprof"
 247     ;;
 248   mips*-*-bsd*)
 249     noconfigdirs="$noconfigdirs gprof ld"
 250     ;;
 251   mips*-*-*)
 252     noconfigdirs="$noconfigdirs gprof"
 253     ;;
 254   romp-*-*)
 255     noconfigdirs="bfd binutils ld gas opcodes"
 256     ;;
 257   sh-*-*)
 258     case "${host}" in
 259       i[34]86-*-vsta) ;; # don't add gprof back in
 260       *) configdirs=`echo gprof ${configdirs}` ;;
 261       i[34]86-*-go32) ;; # don't add gprof back in
 262       *) configdirs=`echo gprof ${configdirs}` ;;
 263     esac
 264     ;;
 265   sparc-*-sunos4*)
 266     use_gnu_ld=no
 267     ;;
 268   sparc-*-solaris2*)
 269     # See i386-*-solaris2* above.
 270     noconfigdirs="$noconfigdirs ld"
 271     ;;
 272   vax-*-vms)
 273     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 274     ;;
 275   vax-*-*)
 276     noconfigdirs="$noconfigdirs newlib"
 277     ;;
 278   *-*-sysv4)
 279     use_gnu_ld=no
 280     ;;
 281   *-*-lynxos*)
 282      # Newlib makes problems for libg++ in crosses.
 283      noconfigdirs="$noconfigdirs newlib"
 284      ;;
 285 esac
 286
 287 notsupp=""
 288 for dir in . $noconfigdirs ; do
 289   if [ $dir != . ] && echo "# ${configdirs} #" | grep "${dir} " >/dev/null 2>&1 ; then
 290     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 291     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 292       notsupp="$notsupp $dir"
 293     fi
 294   fi
 295 done
 296
 297 # Produce a warning message for the subdirs we can't configure.
 298 # This isn't especially interesting in the Cygnus tree, but in the individual
 299 # FSF releases, it's important to let people know when their machine isn't
 300 # supported by the one or two programs in a package.
 301
 302 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 303   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 304   echo "    ${notsupp}" 1>&2
 305   echo "    (Any other directories should still work fine.)" 1>&2
 306 fi
 307
 308 # Set with_gnu_as and with_gnu_ld as appropriate.
 309 #
 310 # This is done by determining whether or not the appropriate directory
 311 # is available, and by checking whether or not specific configurations
 312 # have requested that this magic not happen.
 313 #
 314 # The command line options always override the explicit settings in
 315 # configure.in, and the settings in configure.in override this magic.
 316 #
 317 # If the default for a toolchain is to use GNU as and ld, and you don't
 318 # want to do that, then you should use the --without-gnu-as and
 319 # --without-gnu-ld options for the configure script.
 320
 321 if [ x${use_gnu_as} = x ] ; then
 322   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 323     with_gnu_as=yes
 324     withoptions="$withoptions --with-gnu-as"
 325   fi
 326 fi
 327
 328 if [ x${use_gnu_ld} = x ] ; then
 329   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 330     with_gnu_ld=yes
 331     withoptions="$withoptions --with-gnu-ld"
 332   fi
 333 fi
 334
 335 #
 336 # Local Variables:
 337 # fill-column: 131
 338 # End:
 339 #