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   i[34]86-*-go32*)        host_makefile_frag=config/mh-go32 ;;
 108   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 109   *-ibm-aix*)             host_makefile_frag=config/mh-aix ;;
 110   *-bull-bosx*)           host_makefile_frag=config/mh-aix ;;
 111   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 112   m68k-sun-*)             host_makefile_frag=config/mh-sun3 ;;
 113   *-sun-*)                host_makefile_frag=config/mh-sun ;;
 114   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 115   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 116   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 117   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 118   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 119   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 120 esac
 121 fi
 122
 123 # per-target:
 124
 125 gasdir=gas
 126 use_gnu_ld=
 127 use_gnu_as=
 128
 129 # some tools are so dependent upon X11 that if we're not building with X,
 130 # it's not even worth trying to configure, much less build, that tool.
 131
 132 case ${with_x} in
 133   yes | "")  # the default value for this tree is that X11 is available
 134         ;;
 135   no)
 136         configdirs=`echo " ${configdirs} " | sed -e 's/ tk / /;/ gash / /'`
 137         ;;
 138   *)
 139         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 140         ;;
 141 esac
 142
 143
 144
 145 # Some tools are only suitable for building in a "native" situation.
 146 # Those are added when we have a host==target configuration.  For cross
 147 # toolchains, we add some directories that should only be useful in a
 148 # cross-compiler.
 149
 150 is_cross_compiler=
 151
 152 if [ x"${host}" = x"${target}" ] ; then
 153         # when doing a native toolchain, don't build the targets
 154         # that are in the 'cross only' list
 155         for i in ${cross_only} ; do
 156           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 157         done
 158         is_cross_compiler=no
 159 else
 160         # similarly, don't build the targets in the 'native only'
 161         # list when building a cross compiler
 162         for i in ${native_only} ; do
 163           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 164         done
 165         is_cross_compiler=yes
 166 fi
 167
 168 # Configure extra directories which are host specific
 169
 170 case "${host}" in
 171   i[34]86-*-go32*)
 172                   configdirs="$configdirs dosrel" ;;
 173 esac
 174
 175 # Remove more programs from consideration, based on the host or
 176 # target this usually means that a port of the program doesn't
 177 # exist yet.
 178
 179 noconfigdirs=""
 180
 181 case "${host}" in
 182   i[34]86-*-netbsd*)
 183     noconfigdirs="tk fileutils"
 184     ;;
 185   i[34]86-*-vsta)
 186     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 187     ;;
 188   i[34]86-*-go32)
 189     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 190     ;;
 191 esac
 192
 193
 194
 195
 196
 197 case "${target}" in
 198   alpha-dec-osf1*)
 199     noconfigdirs="$noconfigdirs emacs fileutils grep newlib"
 200     ;;
 201   alpha*-*-*)
 202     noconfigdirs="$noconfigdirs newlib"
 203     ;;
 204   h8300*-*-* | \
 205   h8500-*-*)
 206     noconfigdirs="$noconfigdirs libg++ libio"
 207     ;;
 208   hppa*-*-*elf*)
 209     # Do configure ld/binutils/gas for this case.
 210     ;;
 211   hppa*-*-*)
 212     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 213     # cc is gcc, and on any system a user should be able to link cc to
 214     # whatever they want.  FIXME, emacs).
 215     case "${CC}" in
 216         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 217         *) ;;
 218     esac
 219     noconfigdirs="$noconfigdirs ld shellutils"
 220     ;;
 221   i[34]86-*-go32)
 222     # add the go32 support tools to the list
 223     # but don't build gdb
 224     configdirs=`echo go32 ${configdirs}`
 225     noconfigdirs="$noconfigdirs gdb libg++ libio"
 226     ;;
 227   i[34]86-*-sco*)
 228     noconfigdirs="$noconfigdirs gprof"
 229     ;;
 230   i[34]86-*-solaris2*)
 231     # The linker does static linking correctly, but the Solaris C library
 232     # has bugs such that some important functions won't work when statically
 233     # linked.  (See man pages for getpwuid, for example.)
 234     noconfigdirs="$noconfigdirs ld"
 235     ;;
 236   i[34]86-*-sysv4*)
 237     # The SYSV4 C compiler doesn't handle Emacs correctly
 238     case "${CC}" in
 239         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 240         *) ;;
 241     esac
 242     # but that's okay since emacs doesn't work anyway
 243     noconfigdirs="$noconfigdirs emacs"
 244     ;;
 245   powerpc-*-aix*)
 246     # copied from rs6000-*-* entry
 247     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 248     ;;
 249   rs6000-*-lynxos*)
 250     # a gcc built textutils will cause the linker to hang on 'join'
 251     # The CVS server code doesn't work on the RS/6000
 252     # Newlib makes problems for libg++ in crosses.
 253     noconfigdirs="$noconfigdirs gas ld newlib binutils gprof textutils cvs diff make tcl expect texinfo"
 254     use_gnu_ld=no
 255     use_gnu_as=no
 256     ;;
 257   rs6000-*-*)
 258     # a gcc built textutils will cause the linker to hang on 'join'
 259     # The CVS server code doesn't work on the RS/6000
 260     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 261     ;;
 262   m68k-apollo-*)
 263     noconfigdirs="$noconfigdirs ld binutils gprof"
 264     ;;
 265   mips*-*-irix5*)
 266     # The GNU linker does not support shared libraries.
 267     noconfigdirs="$noconfigdirs ld gprof"
 268     ;;
 269   mips*-dec-bsd*)
 270     noconfigdirs="$noconfigdirs gprof"
 271     ;;
 272   mips*-*-bsd*)
 273     noconfigdirs="$noconfigdirs gprof ld"
 274     ;;
 275   mips*-*-*)
 276     noconfigdirs="$noconfigdirs gprof"
 277     ;;
 278   romp-*-*)
 279     noconfigdirs="bfd binutils ld gas opcodes"
 280     ;;
 281   sh-*-*)
 282     case "${host}" in
 283       i[34]86-*-vsta) ;; # don't add gprof back in
 284       *) configdirs=`echo gprof ${configdirs}` ;;
 285       i[34]86-*-go32) ;; # don't add gprof back in
 286       *) configdirs=`echo gprof ${configdirs}` ;;
 287     esac
 288     ;;
 289   sparc-*-sunos4*)
 290     if [ x${is_cross_compiler} != xno ] ; then
 291            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 292     else
 293            use_gnu_ld=no
 294     fi
 295     ;;
 296   vax-*-vms)
 297     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 298     ;;
 299   vax-*-*)
 300     noconfigdirs="$noconfigdirs newlib"
 301     ;;
 302   *-*-lynxos*)
 303      # Newlib makes problems for libg++ in crosses.
 304      noconfigdirs="$noconfigdirs newlib"
 305      ;;
 306 esac
 307
 308 notsupp=""
 309 for dir in . $noconfigdirs ; do
 310   if [ $dir != . ] && echo "# ${configdirs} #" | grep "${dir} " >/dev/null 2>&1 ; then
 311     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 312     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 313       notsupp="$notsupp $dir"
 314     fi
 315   fi
 316 done
 317
 318 # Produce a warning message for the subdirs we can't configure.
 319 # This isn't especially interesting in the Cygnus tree, but in the individual
 320 # FSF releases, it's important to let people know when their machine isn't
 321 # supported by the one or two programs in a package.
 322
 323 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 324   # If $appdirs is non-empty, at least one of those directories must still
 325   # be configured, or we error out.  (E.g., if the gas release supports a
 326   # specified target in some subdirs but not the gas subdir, we shouldn't
 327   # pretend that all is well.)
 328   if [ -n "$appdirs" ]; then
 329     for dir in $appdirs ; do
 330       if [ -r $dir/Makefile.in ] && echo "# ${configdirs} #" | grep "${dir} " >/dev/null 2>&1 ; then
 331         appdirs=""
 332         break
 333       fi
 334     done
 335     if [ -n "$appdirs" ]; then
 336       echo "*** This configuration is not supported by this package." 1>&2
 337       exit 1
 338     fi
 339   fi
 340   # Okay, some application will build, or we don't care to check.  Still
 341   # notify of subdirs not getting built.
 342   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 343   echo "    ${notsupp}" 1>&2
 344   echo "    (Any other directories should still work fine.)" 1>&2
 345 fi
 346
 347 # Set with_gnu_as and with_gnu_ld as appropriate.
 348 #
 349 # This is done by determining whether or not the appropriate directory
 350 # is available, and by checking whether or not specific configurations
 351 # have requested that this magic not happen.
 352 #
 353 # The command line options always override the explicit settings in
 354 # configure.in, and the settings in configure.in override this magic.
 355 #
 356 # If the default for a toolchain is to use GNU as and ld, and you don't
 357 # want to do that, then you should use the --without-gnu-as and
 358 # --without-gnu-ld options for the configure script.
 359
 360 if [ x${use_gnu_as} = x ] ; then
 361   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 362     with_gnu_as=yes
 363     withoptions="$withoptions --with-gnu-as"
 364   fi
 365 fi
 366
 367 if [ x${use_gnu_ld} = x ] ; then
 368   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 369     with_gnu_ld=yes
 370     withoptions="$withoptions --with-gnu-ld"
 371   fi
 372 fi
 373
 374 #
 375 # Local Variables:
 376 # fill-column: 131
 377 # End:
 378 #