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"
 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="$noconfigdirs emacs"
 244
 245     # static versions of several key libraries are not available,
 246     # so building our entire toolchain is impossible until
 247     # the GNU linker supports shared libraries
 248     noconfigdirs="$noconfigdirs ld"
 249     ;;
 250   powerpc-*-aix*)
 251     # copied from rs6000-*-* entry
 252     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 253     ;;
 254   rs6000-*-lynxos*)
 255     # a gcc built textutils will cause the linker to hang on 'join'
 256     # The CVS server code doesn't work on the RS/6000
 257     # Newlib makes problems for libg++ in crosses.
 258     noconfigdirs="$noconfigdirs gas ld newlib binutils gprof textutils cvs diff make tcl expect texinfo"
 259     use_gnu_ld=no
 260     use_gnu_as=no
 261     ;;
 262   rs6000-*-*)
 263     # a gcc built textutils will cause the linker to hang on 'join'
 264     # The CVS server code doesn't work on the RS/6000
 265     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 266     ;;
 267   m68k-apollo-*)
 268     noconfigdirs="$noconfigdirs ld binutils gprof"
 269     ;;
 270   mips*-*-irix5*)
 271     # The GNU linker does not support shared libraries.
 272     noconfigdirs="$noconfigdirs ld gprof"
 273     ;;
 274   mips*-dec-bsd*)
 275     noconfigdirs="$noconfigdirs gprof"
 276     ;;
 277   mips*-*-bsd*)
 278     noconfigdirs="$noconfigdirs gprof ld"
 279     ;;
 280   mips*-*-*)
 281     noconfigdirs="$noconfigdirs gprof"
 282     ;;
 283   romp-*-*)
 284     noconfigdirs="bfd binutils ld gas opcodes"
 285     ;;
 286   sh-*-*)
 287     case "${host}" in
 288       i[34]86-*-vsta) ;; # don't add gprof back in
 289       *) configdirs=`echo gprof ${configdirs}` ;;
 290       i[34]86-*-go32) ;; # don't add gprof back in
 291       *) configdirs=`echo gprof ${configdirs}` ;;
 292     esac
 293     ;;
 294   sparc-*-sunos4*)
 295     if [ x${is_cross_compiler} != xno ] ; then
 296            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 297     else
 298            use_gnu_ld=no
 299     fi
 300   ;;
 301   sparc-*-solaris2*)
 302     # See i386-*-solaris2* above.
 303     noconfigdirs="$noconfigdirs ld"
 304     ;;
 305   vax-*-vms)
 306     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 307     ;;
 308   vax-*-*)
 309     noconfigdirs="$noconfigdirs newlib"
 310     ;;
 311   *-*-sysv4)
 312     use_gnu_ld=no
 313     ;;
 314   *-*-lynxos*)
 315      # Newlib makes problems for libg++ in crosses.
 316      noconfigdirs="$noconfigdirs newlib"
 317      ;;
 318 esac
 319
 320 notsupp=""
 321 for dir in . $noconfigdirs ; do
 322   if [ $dir != . ] && echo "# ${configdirs} #" | grep "${dir} " >/dev/null 2>&1 ; then
 323     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 324     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 325       notsupp="$notsupp $dir"
 326     fi
 327   fi
 328 done
 329
 330 # Produce a warning message for the subdirs we can't configure.
 331 # This isn't especially interesting in the Cygnus tree, but in the individual
 332 # FSF releases, it's important to let people know when their machine isn't
 333 # supported by the one or two programs in a package.
 334
 335 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 336   # If $appdirs is non-empty, at least one of those directories must still
 337   # be configured, or we error out.  (E.g., if the gas release supports a
 338   # specified target in some subdirs but not the gas subdir, we shouldn't
 339   # pretend that all is well.)
 340   if [ -n "$appdirs" ]; then
 341     for dir in $appdirs ; do
 342       if [ -r $dir/Makefile.in ] && echo "# ${configdirs} #" | grep "${dir} " >/dev/null 2>&1 ; then
 343         appdirs=""
 344         break
 345       fi
 346     done
 347     if [ -n "$appdirs" ]; then
 348       echo "*** This configuration is not supported by this package." 1>&2
 349       exit 1
 350     fi
 351   fi
 352   # Okay, some application will build, or we don't care to check.  Still
 353   # notify of subdirs not getting built.
 354   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 355   echo "    ${notsupp}" 1>&2
 356   echo "    (Any other directories should still work fine.)" 1>&2
 357 fi
 358
 359 # Set with_gnu_as and with_gnu_ld as appropriate.
 360 #
 361 # This is done by determining whether or not the appropriate directory
 362 # is available, and by checking whether or not specific configurations
 363 # have requested that this magic not happen.
 364 #
 365 # The command line options always override the explicit settings in
 366 # configure.in, and the settings in configure.in override this magic.
 367 #
 368 # If the default for a toolchain is to use GNU as and ld, and you don't
 369 # want to do that, then you should use the --without-gnu-as and
 370 # --without-gnu-ld options for the configure script.
 371
 372 if [ x${use_gnu_as} = x ] ; then
 373   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 374     with_gnu_as=yes
 375     withoptions="$withoptions --with-gnu-as"
 376   fi
 377 fi
 378
 379 if [ x${use_gnu_ld} = x ] ; then
 380   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 381     with_gnu_ld=yes
 382     withoptions="$withoptions --with-gnu-ld"
 383   fi
 384 fi
 385
 386 #
 387 # Local Variables:
 388 # fill-column: 131
 389 # End:
 390 #