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 # 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-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
  94   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
  95   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
  96   mips*-sgi-irix5*)       host_makefile_frag=config/mh-irix5 ;;
  97   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
  98   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
  99   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
 100   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
 101   i[34]86-ncr-sysv4*)     host_makefile_frag=config/mh-ncr3000 ;;
 102   i[34]86-*-sco*)         host_makefile_frag=config/mh-sco ;;
 103   i[34]86-*-isc*)         host_makefile_frag=config/mh-sysv ;;
 104   i[34]86-*-linux*)       host_makefile_frag=config/mh-linux ;;
 105   i[34]86-*-solaris2*)    host_makefile_frag=config/mh-sysv4 ;;
 106   i[34]86-*-aix*)         host_makefile_frag=config/mh-aix386 ;;
 107   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 108   *-ibm-aix*)             host_makefile_frag=config/mh-aix ;;
 109   *-bull-bosx*)           host_makefile_frag=config/mh-aix ;;
 110   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 111   m68k-sun-*)             host_makefile_frag=config/mh-sun3 ;;
 112   *-sun-*)                host_makefile_frag=config/mh-sun ;;
 113   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 114   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 115   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 116   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 117   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 118   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 119 esac
 120 fi
 121
 122 # per-target:
 123
 124 gasdir=gas
 125 use_gnu_ld=
 126 use_gnu_as=
 127
 128 # some tools are so dependent upon X11 that if we're not building with X,
 129 # it's not even worth trying to configure, much less build, that tool.
 130
 131 case ${with_x} in
 132   yes | "")  # the default value for this tree is that X11 is available
 133         ;;
 134   no)
 135         configdirs=`echo " ${configdirs} " | sed -e 's/ tk / /;/ gash / /'`
 136         ;;
 137   *)
 138         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 139         ;;
 140 esac
 141
 142
 143
 144 # Some tools are only suitable for building in a "native" situation.
 145 # Those are added when we have a host==target configuration.  For cross
 146 # toolchains, we add some directories that should only be useful in a
 147 # cross-compiler.
 148
 149 if [ x"${host}" = x"${target}" ] ; then
 150         # when doing a native toolchain, don't build the targets
 151         # that are in the 'cross only' list
 152         for i in ${cross_only} ; do
 153           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 154         done
 155 else
 156         # similarly, don't build the targets in the 'native only'
 157         # list when building a cross compiler
 158         for i in ${native_only} ; do
 159           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 160         done
 161 fi
 162
 163 # Remove more programs from consideration, based on the host or
 164 # target this usually means that a port of the program doesn't
 165 # exist yet.
 166
 167 noconfigdirs=""
 168
 169 case "${host}" in
 170   i[34]86-*-netbsd*)
 171     noconfigdirs="tk fileutils"
 172     ;;
 173   i[34]86-*-vsta)
 174     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 175     ;;
 176   i[34]86-*-go32)
 177     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 178     ;;
 179 esac
 180
 181 case "${target}" in
 182   alpha-dec-osf1*)
 183     noconfigdirs="$noconfigdirs emacs fileutils grep newlib"
 184     ;;
 185   alpha*-*-*)
 186     noconfigdirs="$noconfigdirs newlib"
 187     ;;
 188   h8300*-*-* | \
 189   h8500-*-*)
 190     noconfigdirs="$noconfigdirs libg++ libio"
 191     ;;
 192   hppa*-*-*elf*)
 193     # Do configure ld/binutils/gas for this case.
 194     ;;
 195   hppa*-*-*)
 196     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 197     # cc is gcc, and on any system a user should be able to link cc to
 198     # whatever they want.  FIXME, emacs).
 199     case "${CC}" in
 200         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 201         *) ;;
 202     esac
 203     noconfigdirs="$noconfigdirs ld shellutils"
 204     ;;
 205   i[34]86-*-go32)
 206     # add the go32 support tools to the list
 207     configdirs=`echo go32 ${configdirs}`
 208     ;;
 209   i[34]86-*-sco*)
 210     noconfigdirs="$noconfigdirs gprof"
 211     ;;
 212   i[34]86-*-solaris2*)
 213     # The linker does static linking correctly, but the Solaris C library
 214     # has bugs such that some important functions won't work when statically
 215     # linked.  (See man pages for getpwuid, for example.)
 216     noconfigdirs="$noconfigdirs ld"
 217     ;;
 218   i[34]86-*-sysv4*)
 219     # The SYSV4 C compiler doesn't handle Emacs correctly
 220     case "${CC}" in
 221         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 222         *) ;;
 223     esac
 224     # but that's okay since emacs doesn't work anyway
 225     noconfigdirs="$noconfigdirs emacs"
 226
 227     # static versions of several key libraries are not available,
 228     # so building our entire toolchain is impossible until
 229     # the GNU linker supports shared libraries
 230     noconfigdirs="$noconfigdirs ld"
 231     ;;
 232   powerpc-*-aix*)
 233     # copied from rs6000-*-* entry
 234     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 235     ;;
 236   rs6000-*-*)
 237     # a gcc built textutils will cause the linker to hang on 'join'
 238     # The CVS server code doesn't work on the RS/6000
 239     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 240     ;;
 241   m68k-apollo-*)
 242     noconfigdirs="$noconfigdirs ld binutils gprof"
 243     ;;
 244   mips*-*-irix5*)
 245     # The GNU linker does not support shared libraries.
 246     noconfigdirs="$noconfigdirs ld gprof"
 247     ;;
 248   mips*-dec-bsd*)
 249     noconfigdirs="$noconfigdirs gprof"
 250     ;;
 251   mips*-*-bsd*)
 252     noconfigdirs="$noconfigdirs gprof ld"
 253     ;;
 254   mips*-*-*)
 255     noconfigdirs="$noconfigdirs gprof"
 256     ;;
 257   romp-*-*)
 258     noconfigdirs="bfd binutils ld gas opcodes"
 259     ;;
 260   sh-*-*)
 261     case "${host}" in
 262       i[34]86-*-vsta) ;; # don't add gprof back in
 263       *) configdirs=`echo gprof ${configdirs}` ;;
 264       i[34]86-*-go32) ;; # don't add gprof back in
 265       *) configdirs=`echo gprof ${configdirs}` ;;
 266     esac
 267     ;;
 268   sparc-*-sunos4*)
 269     use_gnu_ld=no
 270     ;;
 271   sparc-*-solaris2*)
 272     # See i386-*-solaris2* above.
 273     noconfigdirs="$noconfigdirs ld"
 274     ;;
 275   vax-*-vms)
 276     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 277     ;;
 278   vax-*-*)
 279     noconfigdirs="$noconfigdirs newlib"
 280     ;;
 281   *-*-sysv4)
 282     use_gnu_ld=no
 283     ;;
 284   *-*-lynxos*)
 285      # Newlib makes problems for libg++ in crosses.
 286      noconfigdirs="$noconfigdirs newlib"
 287      ;;
 288 esac
 289
 290 notsupp=""
 291 for dir in . $noconfigdirs ; do
 292   if [ $dir != . ] && echo "# ${configdirs} #" | grep "${dir} " >/dev/null 2>&1 ; then
 293     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 294     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 295       notsupp="$notsupp $dir"
 296     fi
 297   fi
 298 done
 299
 300 # Produce a warning message for the subdirs we can't configure.
 301 # This isn't especially interesting in the Cygnus tree, but in the individual
 302 # FSF releases, it's important to let people know when their machine isn't
 303 # supported by the one or two programs in a package.
 304
 305 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 306   # If $appdirs is non-empty, at least one of those directories must still
 307   # be configured, or we error out.  (E.g., if the gas release supports a
 308   # specified target in some subdirs but not the gas subdir, we shouldn't
 309   # pretend that all is well.)
 310   if [ -n "$appdirs" ]; then
 311     for dir in $appdirs ; do
 312       if [ -r $dir/Makefile.in ] && echo "# ${configdirs} #" | grep "${dir} " >/dev/null 2>&1 ; then
 313         appdirs=""
 314         break
 315       fi
 316     done
 317     if [ -n "$appdirs" ]; then
 318       echo "*** This configuration is not supported by this package." 1>&2
 319       exit 1
 320     fi
 321   fi
 322   # Okay, some application will build, or we don't care to check.  Still
 323   # notify of subdirs not getting built.
 324   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 325   echo "    ${notsupp}" 1>&2
 326   echo "    (Any other directories should still work fine.)" 1>&2
 327 fi
 328
 329 # Set with_gnu_as and with_gnu_ld as appropriate.
 330 #
 331 # This is done by determining whether or not the appropriate directory
 332 # is available, and by checking whether or not specific configurations
 333 # have requested that this magic not happen.
 334 #
 335 # The command line options always override the explicit settings in
 336 # configure.in, and the settings in configure.in override this magic.
 337 #
 338 # If the default for a toolchain is to use GNU as and ld, and you don't
 339 # want to do that, then you should use the --without-gnu-as and
 340 # --without-gnu-ld options for the configure script.
 341
 342 if [ x${use_gnu_as} = x ] ; then
 343   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 344     with_gnu_as=yes
 345     withoptions="$withoptions --with-gnu-as"
 346   fi
 347 fi
 348
 349 if [ x${use_gnu_ld} = x ] ; then
 350   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 351     with_gnu_ld=yes
 352     withoptions="$withoptions --with-gnu-ld"
 353   fi
 354 fi
 355
 356 #
 357 # Local Variables:
 358 # fill-column: 131
 359 # End:
 360 #