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 # Remove patch suffixes from host and target names.
 153 # Example: 'sparc-sun-sunos4.1.3_U1'
 154 # See similar code in configure.
 155 hostnop=`echo ${host} | sed '/sun-sunos/s/_U1//'`
 156 targetnop=`echo ${target} | sed '/sun-sunos/s/_U1//'`
 157
 158 if [ x"${hostnop}" = x"${targetnop}" ] ; then
 159         # when doing a native toolchain, don't build the targets
 160         # that are in the 'cross only' list
 161         for i in ${cross_only} ; do
 162           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 163         done
 164         is_cross_compiler=no
 165 else
 166         # similarly, don't build the targets in the 'native only'
 167         # list when building a cross compiler
 168         for i in ${native_only} ; do
 169           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 170         done
 171         is_cross_compiler=yes
 172 fi
 173
 174 # Configure extra directories which are host specific
 175
 176 case "${host}" in
 177   i[34]86-*-go32*)
 178                   configdirs="$configdirs dosrel" ;;
 179 esac
 180
 181 # Remove more programs from consideration, based on the host or
 182 # target this usually means that a port of the program doesn't
 183 # exist yet.
 184
 185 noconfigdirs=""
 186
 187 case "${host}" in
 188   i[34]86-*-netbsd*)
 189     noconfigdirs="tk fileutils"
 190     ;;
 191   i[34]86-*-vsta)
 192     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 193     ;;
 194   i[34]86-*-go32)
 195     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 196     ;;
 197 esac
 198
 199
 200
 201
 202
 203 case "${target}" in
 204   alpha-dec-osf1*)
 205     noconfigdirs="$noconfigdirs emacs fileutils grep newlib"
 206     ;;
 207   alpha*-*-*)
 208     noconfigdirs="$noconfigdirs newlib"
 209     ;;
 210   h8300*-*-* | \
 211   h8500-*-*)
 212     noconfigdirs="$noconfigdirs libg++ libio"
 213     ;;
 214   hppa*-*-*elf*)
 215     # Do configure ld/binutils/gas for this case.
 216     ;;
 217   hppa*-*-*)
 218     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 219     # cc is gcc, and on any system a user should be able to link cc to
 220     # whatever they want.  FIXME, emacs).
 221     case "${CC}" in
 222         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 223         *) ;;
 224     esac
 225     noconfigdirs="$noconfigdirs ld shellutils"
 226     ;;
 227   i[34]86-*-go32)
 228     # add the go32 support tools to the list
 229     # but don't build gdb
 230     configdirs=`echo go32 ${configdirs}`
 231     noconfigdirs="$noconfigdirs gdb libg++ libio"
 232     ;;
 233   i[34]86-*-sco*)
 234     noconfigdirs="$noconfigdirs gprof"
 235     ;;
 236   i[34]86-*-solaris2*)
 237     # The linker does static linking correctly, but the Solaris C library
 238     # has bugs such that some important functions won't work when statically
 239     # linked.  (See man pages for getpwuid, for example.)
 240     noconfigdirs="$noconfigdirs ld"
 241     ;;
 242   i[34]86-*-sysv4*)
 243     # The SYSV4 C compiler doesn't handle Emacs correctly
 244     case "${CC}" in
 245         "" | cc*) noconfigdirs="$noconfigdirs emacs" ;;
 246         *) ;;
 247     esac
 248     # but that's okay since emacs doesn't work anyway
 249     noconfigdirs="$noconfigdirs emacs"
 250     ;;
 251   powerpc-*-aix*)
 252     # copied from rs6000-*-* entry
 253     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 254     ;;
 255   rs6000-*-lynxos*)
 256     # a gcc built textutils will cause the linker to hang on 'join'
 257     # The CVS server code doesn't work on the RS/6000
 258     # Newlib makes problems for libg++ in crosses.
 259     noconfigdirs="$noconfigdirs gas ld newlib binutils gprof textutils cvs diff make tcl expect texinfo"
 260     use_gnu_ld=no
 261     use_gnu_as=no
 262     ;;
 263   rs6000-*-*)
 264     # a gcc built textutils will cause the linker to hang on 'join'
 265     # The CVS server code doesn't work on the RS/6000
 266     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 267     ;;
 268   m68k-apollo-*)
 269     noconfigdirs="$noconfigdirs ld binutils gprof"
 270     ;;
 271   mips*-*-irix5*)
 272     # The GNU linker does not support shared libraries.
 273     noconfigdirs="$noconfigdirs ld gprof"
 274     ;;
 275   mips*-dec-bsd*)
 276     noconfigdirs="$noconfigdirs gprof"
 277     ;;
 278   mips*-*-bsd*)
 279     noconfigdirs="$noconfigdirs gprof ld"
 280     ;;
 281   mips*-*-*)
 282     noconfigdirs="$noconfigdirs gprof"
 283     ;;
 284   romp-*-*)
 285     noconfigdirs="bfd binutils ld gas opcodes"
 286     ;;
 287   sh-*-*)
 288     case "${host}" in
 289       i[34]86-*-vsta) ;; # don't add gprof back in
 290       *) configdirs=`echo gprof ${configdirs}` ;;
 291       i[34]86-*-go32) ;; # don't add gprof back in
 292       *) configdirs=`echo gprof ${configdirs}` ;;
 293     esac
 294     ;;
 295   sparc-*-sunos4*)
 296     if [ x${is_cross_compiler} != xno ] ; then
 297            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 298     else
 299            use_gnu_ld=no
 300     fi
 301     ;;
 302   vax-*-vms)
 303     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 304     ;;
 305   vax-*-*)
 306     noconfigdirs="$noconfigdirs newlib"
 307     ;;
 308   *-*-lynxos*)
 309      # Newlib makes problems for libg++ in crosses.
 310      noconfigdirs="$noconfigdirs newlib"
 311      ;;
 312 esac
 313
 314 notsupp=""
 315 for dir in . $noconfigdirs ; do
 316   if [ $dir != . ] && echo "# ${configdirs} #" | grep "${dir} " >/dev/null 2>&1 ; then
 317     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 318     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 319       notsupp="$notsupp $dir"
 320     fi
 321   fi
 322 done
 323
 324 # Produce a warning message for the subdirs we can't configure.
 325 # This isn't especially interesting in the Cygnus tree, but in the individual
 326 # FSF releases, it's important to let people know when their machine isn't
 327 # supported by the one or two programs in a package.
 328
 329 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 330   # If $appdirs is non-empty, at least one of those directories must still
 331   # be configured, or we error out.  (E.g., if the gas release supports a
 332   # specified target in some subdirs but not the gas subdir, we shouldn't
 333   # pretend that all is well.)
 334   if [ -n "$appdirs" ]; then
 335     for dir in $appdirs ; do
 336       if [ -r $dir/Makefile.in ] && echo "# ${configdirs} #" | grep "${dir} " >/dev/null 2>&1 ; then
 337         appdirs=""
 338         break
 339       fi
 340     done
 341     if [ -n "$appdirs" ]; then
 342       echo "*** This configuration is not supported by this package." 1>&2
 343       exit 1
 344     fi
 345   fi
 346   # Okay, some application will build, or we don't care to check.  Still
 347   # notify of subdirs not getting built.
 348   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 349   echo "    ${notsupp}" 1>&2
 350   echo "    (Any other directories should still work fine.)" 1>&2
 351 fi
 352
 353 # Set with_gnu_as and with_gnu_ld as appropriate.
 354 #
 355 # This is done by determining whether or not the appropriate directory
 356 # is available, and by checking whether or not specific configurations
 357 # have requested that this magic not happen.
 358 #
 359 # The command line options always override the explicit settings in
 360 # configure.in, and the settings in configure.in override this magic.
 361 #
 362 # If the default for a toolchain is to use GNU as and ld, and you don't
 363 # want to do that, then you should use the --without-gnu-as and
 364 # --without-gnu-ld options for the configure script.
 365
 366 if [ x${use_gnu_as} = x ] ; then
 367   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 368     with_gnu_as=yes
 369     withoptions="$withoptions --with-gnu-as"
 370   fi
 371 fi
 372
 373 if [ x${use_gnu_ld} = x ] ; then
 374   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 375     with_gnu_ld=yes
 376     withoptions="$withoptions --with-gnu-ld"
 377   fi
 378 fi
 379
 380 #
 381 # Local Variables:
 382 # fill-column: 131
 383 # End:
 384 #