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} ${target_tools}`
  76
  77 ################################################################################
  78
  79 srctrigger=move-if-change
  80 srcname="gnu development package"
  81
  82 # per-host:
  83
  84 case "${host}" in
  85   m68k-hp-hpux*)          host_makefile_frag=config/mh-hp300 ;;
  86   m68k-apollo-sysv*)      host_makefile_frag=config/mh-apollo68 ;;
  87   m68k-apollo-bsd*)       host_makefile_frag=config/mh-a68bsd ;;
  88   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
  89   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
  90   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
  91   mips*-sgi-irix5*)       host_makefile_frag=config/mh-irix5 ;;
  92   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
  93   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
  94   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
  95   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
  96   i[34]86-ncr-sysv4*)     host_makefile_frag=config/mh-ncr3000 ;;
  97   i[34]86-*-sco*)         host_makefile_frag=config/mh-sco ;;
  98   i[34]86-*-isc*)         host_makefile_frag=config/mh-sysv ;;
  99   i[34]86-*-linux*)       host_makefile_frag=config/mh-linux ;;
 100   i[34]86-*-solaris2*)    host_makefile_frag=config/mh-sysv4 ;;
 101   i[34]86-*-aix*)         host_makefile_frag=config/mh-aix386 ;;
 102   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 103   *-ibm-aix*)             host_makefile_frag=config/mh-aix ;;
 104   *-bull-bosx*)           host_makefile_frag=config/mh-aix ;;
 105   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 106   m68k-sun-*)             host_makefile_frag=config/mh-sun3 ;;
 107   *-sun-*)                host_makefile_frag=config/mh-sun ;;
 108   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 109   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 110   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxosrs6k ;;
 111   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 112   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 113   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 114 esac
 115
 116 # per-target:
 117
 118 gasdir=gas
 119 use_gnu_ld=
 120 use_gnu_as=
 121
 122 # some tools are so dependent upon X11 that if we're not building with X,
 123 # it's not even worth trying to configure, much less build, that tool.
 124
 125 case ${with_x} in
 126   yes | "")  # the default value for this tree is that X11 is available
 127         ;;
 128   no)
 129         configdirs=`echo " ${configdirs} " | sed -e 's/ tk / /;/ gash / /'`
 130         ;;
 131   *)
 132         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 133         ;;
 134 esac
 135
 136
 137
 138 # Some tools are only suitable for building in a "native" situation.
 139 # Those are added when we have a host==target configuration.  For cross
 140 # toolchains, we add some directories that should only be useful in a
 141 # cross-compiler.
 142
 143 if [ x"${host}" = x"${target}" ] ; then
 144         # when doing a native toolchain, don't build the targets
 145         # that are in the 'cross only' list
 146         for i in ${cross_only} ; do
 147           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 148         done
 149 else
 150         # similarly, don't build the targets in the 'native only'
 151         # list when building a cross compiler
 152         for i in ${native_only} ; do
 153           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 154         done
 155 fi
 156
 157 # Remove more programs from consideration, based on the host or
 158 # target this usually means that a port of the program doesn't
 159 # exist yet.
 160
 161 noconfigdirs=""
 162
 163 case "${host}" in
 164   i[34]86-*-netbsd*)
 165     noconfigdirs="tk fileutils"
 166     ;;
 167   i[34]86-*-vsta)
 168     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 169     ;;
 170   i[34]86-*-go32)
 171     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 172     ;;
 173 esac
 174
 175 case "${target}" in
 176   alpha-dec-osf1*)
 177     noconfigdirs="$noconfigdirs emacs fileutils grep newlib"
 178     ;;
 179   alpha*-*-*)
 180     noconfigdirs="$noconfigdirs newlib"
 181     ;;
 182   h8300*-*-* | \
 183   h8500-*-*)
 184     noconfigdirs="$noconfigdirs libg++ libio"
 185     ;;
 186   hppa*-*-*elf*)
 187     # Do configure ld/binutils/gas for this case.
 188     ;;
 189   hppa*-*-*)
 190     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 191     # cc is gcc, and on any system a user should be able to link cc to
 192     # whatever they want.  FIXME, emacs).
 193     case "${CC}" in
 194         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 195         *) ;;
 196     esac
 197     noconfigdirs="$noconfigdirs ld shellutils"
 198     ;;
 199   i[34]86-*-go32)
 200     # add the go32 support tools to the list
 201     configdirs=`echo go32 ${configdirs}`
 202     ;;
 203   i[34]86-*-solaris2*)
 204     # The linker does static linking correctly, but the Solaris C library
 205     # has bugs such that some important functions won't work when statically
 206     # linked.  (See man pages for getpwuid, for example.)
 207     noconfigdirs="$noconfigdirs ld"
 208     ;;
 209   i[34]86-*-sysv4*)
 210     # The SYSV4 C compiler doesn't handle Emacs correctly
 211     case "${CC}" in
 212         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 213         *) ;;
 214     esac
 215     # but that's okay since emacs doesn't work anyway
 216     noconfigdirs="$noconfigdirs emacs"
 217
 218     # static versions of several key libraries are not available,
 219     # so building our entire toolchain is impossible until
 220     # the GNU linker supports shared libraries
 221     noconfigdirs="$noconfigdirs ld"
 222     ;;
 223   powerpc-*-aix*)
 224     # copied from rs6000-*-* entry
 225     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 226     ;;
 227   rs6000-*-*)
 228     # a gcc built textutils will cause the linker to hang on 'join'
 229     # The CVS server code doesn't work on the RS/6000
 230     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 231     ;;
 232   m68k-apollo-*)
 233     noconfigdirs="$noconfigdirs ld binutils gprof"
 234     ;;
 235   mips*-*-irix5*)
 236     # The GNU linker does not support shared libraries.
 237     noconfigdirs="$noconfigdirs ld gprof"
 238     ;;
 239   mips*-*-*)
 240     noconfigdirs="$noconfigdirs gprof"
 241     ;;
 242   sh-*-*)
 243     case "${host}" in
 244       i[34]86-*-vsta) ;; # don't add gprof back in
 245       *) configdirs=`echo gprof ${configdirs}` ;;
 246       i[34]86-*-go32) ;; # don't add gprof back in
 247       *) configdirs=`echo gprof ${configdirs}` ;;
 248     esac
 249     ;;
 250   sparc-*-sunos4*)
 251     use_gnu_ld=no
 252     ;;
 253   sparc-*-solaris2*)
 254     # See i386-*-solaris2* above.
 255     noconfigdirs="$noconfigdirs ld"
 256     ;;
 257   i[34]86-*-sco*)
 258     noconfigdirs="$noconfigdirs gprof"
 259     ;;
 260   *-*-sysv4)
 261     use_gnu_ld=no
 262     ;;
 263    *-*-lynxos*)
 264      # Newlib makes problems for libg++ in crosses.
 265      noconfigdirs="$noconfigdirs newlib"
 266      ;;
 267   *-*-vms)
 268     noconfigdirs="$noconfigdirs bfd ld binutils gdb"
 269     ;;
 270 esac
 271
 272 notsupp=""
 273 for dir in . $noconfigdirs ; do
 274   if [ $dir != . ] && echo "# ${configdirs} #" | grep "${dir} " >/dev/null 2>&1 ; then
 275     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 276     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 277       notsupp="$notsupp $dir"
 278     fi
 279   fi
 280 done
 281
 282 # Produce a warning message for the subdirs we can't configure.
 283 # This isn't especially interesting in the Cygnus tree, but in the individual
 284 # FSF releases, it's important to let people know when their machine isn't
 285 # supported by the one or two programs in a package.
 286
 287 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 288   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 289   echo "    ${notsupp}" 1>&2
 290   echo "    (Any other directories should still work fine.)" 1>&2
 291 fi
 292
 293 # Set with_gnu_as and with_gnu_ld as appropriate.
 294 #
 295 # This is done by determining whether or not the appropriate directory
 296 # is available, and by checking whether or not specific configurations
 297 # have requested that this magic not happen.
 298 #
 299 # The command line options always override the explicit settings in
 300 # configure.in, and the settings in configure.in override this magic.
 301 #
 302 # If the default for a toolchain is to use GNU as and ld, and you don't
 303 # want to do that, then you should use the --without-gnu-as and
 304 # --without-gnu-ld options for the configure script.
 305
 306 if [ x${use_gnu_as} = x ] ; then
 307   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 308     with_gnu_as=yes
 309     withoptions="$withoptions --with-gnu-as"
 310   fi
 311 fi
 312
 313 if [ x${use_gnu_ld} = x ] ; then
 314   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 315     with_gnu_ld=yes
 316     withoptions="$withoptions --with-gnu-ld"
 317   fi
 318 fi
 319
 320 #
 321 # Local Variables:
 322 # fill-column: 131
 323 # End:
 324 #