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 ## ${configdirs} list for either cross-compilations or for native-
  57 ## compilations.  For example, it doesn't make that much sense to
  58 ## cross-compile Emacs, nor is it terribly useful to compile xiberty in
  59 ## a native environment.
  60
  61 # directories to be built in the native environment only
  62 #
  63 native_only="autoconf cvs emacs fileutils find grep groff gzip hello indent
  64              ispell m4 rcs recode sed shellutils tar textutils gash tk uudecode wdiff
  65              gprof"
  66
  67 # directories to be built in a cross environment only
  68 #
  69 cross_only="xiberty newlib"
  70
  71 ## All tools belong in one of the four categories, and are assigned above
  72 #
  73 configdirs="${host_libs} ${host_tools} ${target_libs} ${target_tools}"
  74
  75 ################################################################################
  76
  77 srctrigger=move-if-change
  78 srcname="gnu development package"
  79
  80 # per-host:
  81
  82 case "${host}" in
  83   m68k-hp-hpux*)          host_makefile_frag=config/mh-hp300 ;;
  84   m68k-apollo-sysv*)      host_makefile_frag=config/mh-apollo68 ;;
  85   m68k-apollo-bsd*)       host_makefile_frag=config/mh-a68bsd ;;
  86   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
  87   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
  88   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
  89   mips*-sgi-irix5*)       host_makefile_frag=config/mh-irix5 ;;
  90   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
  91   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
  92   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
  93   i[34]86-ncr-sysv4*)     host_makefile_frag=config/mh-ncr3000 ;;
  94   i[34]86-*-sco*)         host_makefile_frag=config/mh-sco ;;
  95   i[34]86-*-isc*)         host_makefile_frag=config/mh-sysv ;;
  96   i[34]86-*-linux*)       host_makefile_frag=config/mh-linux ;;
  97   i[34]86-*-solaris2*)    host_makefile_frag=config/mh-sysv4 ;;
  98   i[34]86-*-aix*)         host_makefile_frag=config/mh-aix386 ;;
  99   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 100   *-ibm-aix*)             host_makefile_frag=config/mh-aix ;;
 101   *-bull-bosx*)           host_makefile_frag=config/mh-aix ;;
 102   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 103   m68k-sun-*)             host_makefile_frag=config/mh-sun3 ;;
 104   *-sun-*)                host_makefile_frag=config/mh-sun ;;
 105   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 106   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 107   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxosrs6k
 108                                 cross_only="xiberty" ;;
 109   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos
 110                                 cross_only="xiberty" ;;
 111   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 112   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 113 esac
 114
 115 # per-target:
 116
 117 gasdir=gas
 118 use_gnu_ld=
 119 use_gnu_as=
 120
 121 # some tools are so dependent upon X11 that if we're not building with X,
 122 # it's not even worth trying to configure, much less build, that tool.
 123
 124 case ${with_x} in
 125   yes | "")  # the default value for this tree is that X11 is available
 126         ;;
 127   no)
 128         configdirs=`echo ${configdirs} | sed -e 's/tk//;/gash//'`
 129         ;;
 130   *)
 131         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 132         ;;
 133 esac
 134
 135
 136
 137 # Some tools are only suitable for building in a "native" situation.
 138 # Those are added when we have a host==target configuration.  For cross
 139 # toolchains, we add some directories that should only be useful in a
 140 # cross-compiler.
 141
 142 if [ x"${host}" = x"${target}" ] ; then
 143         # when doing a native toolchain, don't build the targets
 144         # that are in the 'cross only' list
 145         for i in ${cross_only} ; do
 146           configdirs=`echo ${configdirs} | sed -e "s/$i//"`
 147         done
 148 else
 149         # similarly, don't build the targets in the 'native only'
 150         # list when building a cross compiler
 151         for i in ${native_only} ; do
 152           configdirs=`echo ${configdirs} | sed -e "s/$i//"`
 153         done
 154 fi
 155
 156 # Remove more programs from consideration, based on the host or
 157 # target this usually means that a port of the program doesn't
 158 # exist yet.
 159
 160 noconfigdirs=""
 161
 162 case "${host}" in
 163   i[34]86-*-netbsd*)
 164     noconfigdirs="tk fileutils"
 165     ;;
 166   i[34]86-*-vsta)
 167     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 168     ;;
 169   i[34]86-*-go32)
 170     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 171     ;;
 172 esac
 173
 174 case "${target}" in
 175   alpha-dec-osf1*)
 176     noconfigdirs="$noconfigdirs emacs fileutils grep libg++ libio newlib"
 177     ;;
 178   alpha*-*-*)
 179     noconfigdirs="$noconfigdirs libg++ libio newlib"
 180     ;;
 181   h8300*-*-* | \
 182   h8500-*-*)
 183     noconfigdirs="$noconfigdirs libg++ libio"
 184     ;;
 185   hppa*-*-*elf*)
 186     # Do configure ld/binutils/gas for this case.
 187     ;;
 188   hppa*-*-*)
 189     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 190     # cc is gcc, and on any system a user should be able to link cc to
 191     # whatever they want.  FIXME, emacs).
 192     case "${CC}" in
 193         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 194         *) ;;
 195     esac
 196     noconfigdirs="$noconfigdirs ld binutils shellutils"
 197     ;;
 198   i[34]86-*-go32)
 199     # add the go32 support tools to the list
 200     configdirs=`echo go32 ${configdirs}`
 201     ;;
 202   i[34]86-*-solaris2*)
 203     # The linker does static linking correctly, but the Solaris C library
 204     # has bugs such that some important functions won't work when statically
 205     # linked.  (See man pages for getpwuid, for example.)
 206     noconfigdirs="$noconfigdirs ld"
 207     ;;
 208   i[34]86-*-sysv4*)
 209     # The SYSV4 C compiler doesn't handle Emacs correctly
 210     case "${CC}" in
 211         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 212         *) ;;
 213     esac
 214     # but that's okay since emacs doesn't work anyway
 215     noconfigdirs="$noconfigdirs emacs"
 216
 217     # static versions of several key libraries are not available,
 218     # so building our entire toolchain is impossible until
 219     # the GNU linker supports shared libraries
 220     noconfigdirs="$noconfigdirs ld"
 221     ;;
 222   rs6000-*-*)
 223     # a gcc built textutils will cause the linker to hang on 'join'
 224     # The CVS server code doesn't work on the RS/6000
 225     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 226     ;;
 227   m68k-apollo-*)
 228     noconfigdirs="$noconfigdirs ld binutils gprof"
 229     ;;
 230   mips*-*-irix5*)
 231     # The GNU linker does not support shared libraries.
 232     noconfigdirs="$noconfigdirs ld gprof"
 233     ;;
 234   mips*-*-*)
 235     noconfigdirs="$noconfigdirs gprof"
 236     ;;
 237   sh-*-*)
 238     case "${host}" in
 239       i[34]86-*-vsta) ;; # don't add gprof back in
 240       *) configdirs=`echo gprof ${configdirs}` ;;
 241       i[34]86-*-go32) ;; # don't add gprof back in
 242       *) configdirs=`echo gprof ${configdirs}` ;;
 243     esac
 244     ;;
 245   sparc-*-sunos4*)
 246     use_gnu_ld=no
 247     ;;
 248   sparc-*-solaris2*)
 249     # See i386-*-solaris2* above.
 250     noconfigdirs="$noconfigdirs ld"
 251     ;;
 252   i[34]86-*-sco*)
 253     noconfigdirs="$noconfigdirs gprof"
 254     ;;
 255   *-*-sysv4)
 256     use_gnu_ld=no
 257     ;;
 258   *-*-vms)
 259     noconfigdirs="$noconfigdirs bfd ld binutils gdb"
 260     ;;
 261 esac
 262
 263 notsupp=""
 264 for dir in . $noconfigdirs ; do
 265   if [ $dir != . ] && echo "# ${configdirs} #" | grep "${dir} " >/dev/null 2>&1 ; then
 266     configdirs=`echo $configdirs | sed -e "s/${dir} / /"`
 267     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 268       notsupp="$notsupp $dir"
 269     fi
 270   fi
 271 done
 272
 273 # Produce a warning message for the subdirs we can't configure.
 274 # This isn't especially interesting in the Cygnus tree, but in the individual
 275 # FSF releases, it's important to let people know when their machine isn't
 276 # supported by the one or two programs in a package.
 277
 278 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 279   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 280   echo "    ${notsupp}" 1>&2
 281   echo "    (Any other directories should still work fine.)" 1>&2
 282 fi
 283
 284 # Set with_gnu_as and with_gnu_ld as appropriate.
 285 #
 286 # This is done by determining whether or not the appropriate directory
 287 # is available, and by checking whether or not specific configurations
 288 # have requested that this magic not happen.
 289 #
 290 # The command line options always override the explicit settings in
 291 # configure.in, and the settings in configure.in override this magic.
 292 #
 293 # If the default for a toolchain is to use GNU as and ld, and you don't
 294 # want to do that, then you should use the --without-gnu-as and
 295 # --without-gnu-ld options for the configure script.
 296
 297 if [ x${use_gnu_as} = x ] ; then
 298   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 299     with_gnu_as=yes
 300     withoptions="$withoptions --with-gnu-as"
 301   fi
 302 fi
 303
 304 if [ x${use_gnu_ld} = x ] ; then
 305   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 306     with_gnu_ld=yes
 307     withoptions="$withoptions --with-gnu-ld"
 308   fi
 309 fi
 310
 311 #
 312 # Local Variables:
 313 # fill-column: 131
 314 # End:
 315 #