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 ${host_tools} list after byacc and bison.
  23
  24
  25 # these libraries are used by various programs built for the host environment
  26 #
  27 host_libs="mmalloc libiberty opcodes bfd readline glob gash tcl tk tclX"
  28
  29 if [ "${enable_gdbgui}" = "yes" ] ; then
  30         host_libs="${host_libs} libgui"
  31 fi
  32
  33 # these tools are built for the host environment
  34 #
  35 host_tools="texinfo byacc flex bison binutils ld gas gcc gdb make patch
  36             prms send-pr gprof gdbtest tgas etc expect dejagnu sim
  37             m4 autoconf ispell grep diff rcs cvs fileutils shellutils
  38             textutils wdiff find emacs emacs19 uudecode hello tar gzip indent
  39             recode release sed utils"
  40
  41
  42 # these libraries are built for the target environment, and are built after
  43 # the host libraries and the host tools (which may be a cross compiler)
  44 #
  45 target_libs="libm xiberty libgloss newlib libio librx libstdc++ libg++"
  46
  47
  48 # these tools are built using the target libs, and are intended to run only
  49 # in the target environment
  50 #
  51 # note: any program that *uses* libraries that are in the "target_libs"
  52 # list belongs in this list.  those programs are also very likely
  53 # candidates for the "native_only" list which follows
  54 #
  55 target_tools="examples groff"
  56
  57 ################################################################################
  58
  59 ## These two lists are of directories that are to be removed from the
  60 ## ${configdirs} list for either cross-compilations or for native-
  61 ## compilations.  For example, it doesn't make that much sense to
  62 ## cross-compile Emacs, nor is it terribly useful to compile xiberty in
  63 ## a native environment.
  64
  65 # directories to be built in the native environment only
  66 #
  67 native_only="autoconf cvs emacs emacs19 fileutils find grep groff gzip hello
  68              indent ispell m4 rcs recode sed shellutils tar textutils gash tk
  69              uudecode wdiff gprof"
  70
  71 # directories to be built in a cross environment only
  72 #
  73 cross_only="xiberty libgloss newlib"
  74
  75 ## All tools belong in one of the four categories, and are assigned above
  76 ## We assign ${configdirs} this way to remove all embedded newlines.  This
  77 ## is important because configure will choke if they ever get through.
  78 #
  79 configdirs=`echo ${host_libs} ${host_tools} ${target_libs} ${target_tools}`
  80
  81 ################################################################################
  82
  83 srctrigger=move-if-change
  84 srcname="gnu development package"
  85
  86 # This gets set non-empty for some net releases of packages.
  87 appdirs=""
  88
  89 # per-host:
  90
  91 # Work in distributions that contain no compiler tools, like Autoconf.
  92 if [ -d ${srcdir}/config ]; then
  93 case "${host}" in
  94   m68k-hp-hpux*)          host_makefile_frag=config/mh-hp300 ;;
  95   m68k-apollo-sysv*)      host_makefile_frag=config/mh-apollo68 ;;
  96   m68k-apollo-bsd*)       host_makefile_frag=config/mh-a68bsd ;;
  97   m88k-dg-dgux*)          host_makefile_frag=config/mh-dgux ;;
  98   m88k-harris-cxux*)      host_makefile_frag=config/mh-cxux ;;
  99   m88k-motorola-sysv*)    host_makefile_frag=config/mh-delta88;;
 100   mips*-dec-ultrix*)      host_makefile_frag=config/mh-decstation ;;
 101   mips*-sgi-irix5*)       host_makefile_frag=config/mh-irix5 ;;
 102   mips*-sgi-irix4*)       host_makefile_frag=config/mh-irix4 ;;
 103   mips*-sgi-irix3*)       host_makefile_frag=config/mh-sysv ;;
 104   mips*-*-sysv4*)         host_makefile_frag=config/mh-sysv4 ;;
 105   mips*-*-sysv*)          host_makefile_frag=config/mh-riscos ;;
 106   i[345]86-ncr-sysv4.3)   host_makefile_frag=config/mh-ncrsvr43 ;;
 107   i[345]86-ncr-sysv4*)    host_makefile_frag=config/mh-ncr3000 ;;
 108   i[345]86-*-sco*)        host_makefile_frag=config/mh-sco ;;
 109   i[345]86-*-isc*)        host_makefile_frag=config/mh-sysv ;;
 110   i[345]86-*-linux*)      host_makefile_frag=config/mh-linux ;;
 111   i[345]86-*-solaris2*)   host_makefile_frag=config/mh-sysv4 ;;
 112   i[345]86-*-aix*)        host_makefile_frag=config/mh-aix386 ;;
 113   i[345]86-*-go32*)       host_makefile_frag=config/mh-go32 ;;
 114   vax-*-ultrix2*)         host_makefile_frag=config/mh-vaxult2 ;;
 115   *-ibm-aix*)             host_makefile_frag=config/mh-aix ;;
 116   *-bull-bosx*)           host_makefile_frag=config/mh-aix ;;
 117   *-*-solaris2*)          host_makefile_frag=config/mh-solaris ;;
 118   m68k-sun-*)             host_makefile_frag=config/mh-sun3 ;;
 119   *-sun-*)                host_makefile_frag=config/mh-sun ;;
 120   *-hp-hpux*)             host_makefile_frag=config/mh-hpux ;;
 121   *-*-hiux*)              host_makefile_frag=config/mh-hpux ;;
 122   rs6000-*-lynxos*)       host_makefile_frag=config/mh-lynxrs6k ;;
 123   *-*-lynxos*)            host_makefile_frag=config/mh-lynxos ;;
 124   *-*-sysv4*)             host_makefile_frag=config/mh-sysv4 ;;
 125   *-*-sysv*)              host_makefile_frag=config/mh-sysv ;;
 126 esac
 127 fi
 128
 129 # The Solaris /usr/ucb/cc compiler does not appear to work.
 130 case "${host}" in
 131   sparc-sun-solaris2*)
 132       if [ "`/usr/bin/which ${CC-cc}`" = "/usr/ucb/cc" ] ; then
 133           could_use=
 134           [ -d /opt/SUNWspro/bin ] && could_use="/opt/SUNWspro/bin"
 135           if [ -d /opt/cygnus/bin ] ; then
 136               if [ "$could_use" == "" ] ; then
 137                   could_use="/opt/cygnus/bin"
 138               else
 139                   could_use="$could_use or /opt/cygnus/bin"
 140               fi
 141           fi
 142         if [ "$could_use" = "" ] ; then
 143             echo "Warning: compilation may fail because you're using"
 144             echo "/usr/ucb/cc.  You should change your PATH or CC "
 145             echo "variable and rerun configure."
 146         else
 147             echo "Warning: compilation may fail because you're using"
 148             echo "/usr/ucb/cc, when you should use the C compiler from"
 149             echo "$could_use.  You should change your"
 150             echo "PATH or CC variable and rerun configure."
 151         fi
 152       fi
 153   ;;
 154 esac
 155
 156 # per-target:
 157
 158 case "${target}" in
 159   v810*)                target_makefile_frag=config/mt-v810 ;;
 160 esac
 161
 162 gasdir=gas
 163 use_gnu_ld=
 164 use_gnu_as=
 165
 166 # some tools are so dependent upon X11 that if we're not building with X,
 167 # it's not even worth trying to configure, much less build, that tool.
 168
 169 case ${with_x} in
 170   yes | "")  # the default value for this tree is that X11 is available
 171         ;;
 172   no)
 173         configdirs=`echo " ${configdirs} " | sed -e 's/ tk / /;/ gash / /'`
 174         ;;
 175   *)
 176         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 177         ;;
 178 esac
 179
 180 # Some tools are only suitable for building in a "native" situation.
 181 # Those are added when we have a host==target configuration.  For cross
 182 # toolchains, we add some directories that should only be useful in a
 183 # cross-compiler.
 184
 185 is_cross_compiler=
 186
 187 if [ x"${host}" = x"${target}" ] ; then
 188         # when doing a native toolchain, don't build the targets
 189         # that are in the 'cross only' list
 190         for i in ${cross_only} ; do
 191           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 192         done
 193         is_cross_compiler=no
 194 else
 195         # similarly, don't build the targets in the 'native only'
 196         # list when building a cross compiler
 197         for i in ${native_only} ; do
 198           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 199         done
 200         is_cross_compiler=yes
 201 fi
 202
 203 copy_dirs=
 204
 205 # Handle --with-headers=XXX.  The contents of the named directory are
 206 # copied to $(tooldir)/include.
 207 if [ x"${with_headers}" != x ]; then
 208   if [ x${is_cross_compiler} = xno ]; then
 209     echo 1>&2 '***' --with-headers is only supported when cross compiling
 210     exit 1
 211   fi
 212   case "${exec_prefixoption}" in
 213   "") x=${prefix} ;;
 214   *) x=${exec_prefix} ;;
 215   esac
 216   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/include"
 217 fi
 218
 219 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 220 # contents are copied to $(tooldir)/lib.
 221 if [ x"${with_libs}" != x ]; then
 222   if [ x${is_cross_compiler} = xno ]; then
 223     echo 1>&2 '***' --with-libs is only supported when cross compiling
 224     exit 1
 225   fi
 226   # Copy the libraries in reverse order, so that files in the first named
 227   # library override files in subsequent libraries.
 228   case "${exec_prefixoption}" in
 229   "") x=${prefix} ;;
 230   *) x=${exec_prefix} ;;
 231   esac
 232   for l in ${with_libs}; do
 233     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 234   done
 235 fi
 236
 237 # If both --with-headers and --with-libs are specified, default to
 238 # --without-newlib.
 239 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 240   if [ x"${with_newlib}" = x ]; then
 241     with_newlib=no
 242   fi
 243 fi
 244
 245 # Recognize --without-newlib.
 246 if [ x${with_newlib} = xno ]; then
 247   configdirs=`echo " ${configdirs} " | sed -e 's/ newlib / /'`
 248 fi
 249
 250 # Handle ${copy_dirs}
 251 set fnord ${copy_dirs}
 252 shift
 253 while [ $# != 0 ]; do
 254   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 255     :
 256   else
 257     echo Copying $1 to $2
 258
 259     # Use the install script to create the directory and all required
 260     # parent directories.
 261     if [ -d $2 ]; then
 262       :
 263     else
 264       echo >config.temp
 265       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 266     fi
 267
 268     # Copy the directory, assuming we have tar.
 269     # FIXME: Should we use B in the second tar?  Not all systems support it.
 270     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 271
 272     # It is the responsibility of the user to correctly adjust all
 273     # symlinks.  If somebody can figure out how to handle them correctly
 274     # here, feel free to add the code.
 275
 276     echo $1 > $2/COPIED
 277   fi
 278   shift; shift
 279 done
 280
 281 # Configure extra directories which are host specific
 282
 283 case "${host}" in
 284   i[345]86-*-go32*)
 285                   configdirs="$configdirs dosrel" ;;
 286 esac
 287
 288 # Remove more programs from consideration, based on the host or
 289 # target this usually means that a port of the program doesn't
 290 # exist yet.
 291
 292 noconfigdirs=""
 293
 294 case "${host}" in
 295   i[345]86-*-netbsd*)
 296     noconfigdirs="tk fileutils"
 297     ;;
 298   i[345]86-*-vsta)
 299     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 300     ;;
 301   i[345]86-*-go32)
 302     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 303     ;;
 304 esac
 305
 306
 307 case "${target}" in
 308   *-*-netware)
 309     noconfigdirs="$noconfigdirs libg++ libstdc++ librx newlib"
 310     ;;
 311   alpha-dec-osf*)
 312     # ld works, but does not support shared libraries.  emacs doesn't
 313     # work.  newlib is not 64 bit ready.  I'm not sure about emacs19,
 314     # fileutils or grep.
 315     noconfigdirs="$noconfigdirs ld emacs emacs19 fileutils grep newlib"
 316     ;;
 317   alpha*-*-*)
 318     # newlib is not 64 bit ready
 319     noconfigdirs="$noconfigdirs newlib"
 320     ;;
 321 # start-sanitize-arc
 322   arc-*-*)
 323     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 324     ;;
 325 # end-sanitize-arc
 326   arm-*-*)
 327     noconfigdirs="$noconfigdirs ld"
 328     ;;
 329   h8300*-*-* | \
 330   h8500-*-*)
 331     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 332     ;;
 333   hppa*-*-*elf*)
 334     # Do configure ld/binutils/gas for this case.
 335     ;;
 336   hppa*-*-*)
 337     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 338     # cc is gcc, and on any system a user should be able to link cc to
 339     # whatever they want.  FIXME, emacs emacs19).
 340     case "${CC}" in
 341         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 342         *) ;;
 343     esac
 344     noconfigdirs="$noconfigdirs ld shellutils tk"
 345     ;;
 346   i[345]86-*-go32)
 347     # add the go32 support tools to the list
 348     # but don't build gdb
 349     configdirs=`echo go32 ${configdirs}`
 350     noconfigdirs="$noconfigdirs gdb libg++ libstdc++ libio librx"
 351     ;;
 352   i[345]86-*-sco*)
 353     noconfigdirs="$noconfigdirs gprof"
 354     ;;
 355   i[345]86-*-solaris2*)
 356     # The linker does static linking correctly, but the Solaris C library
 357     # has bugs such that some important functions won't work when statically
 358     # linked.  (See man pages for getpwuid, for example.)
 359     noconfigdirs="$noconfigdirs ld"
 360     ;;
 361   i[345]86-*-sysv4*)
 362     # The SYSV4 C compiler doesn't handle Emacs correctly
 363     case "${CC}" in
 364         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 365         *) ;;
 366     esac
 367     # but that's okay since emacs doesn't work anyway
 368     noconfigdirs="$noconfigdirs emacs emacs19"
 369     ;;
 370   powerpc-*-aix*)
 371     # copied from rs6000-*-* entry
 372     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 373     ;;
 374   rs6000-*-lynxos*)
 375     # a gcc built textutils will cause the linker to hang on 'join'
 376     # The CVS server code doesn't work on the RS/6000
 377     # Newlib makes problems for libg++ in crosses.
 378     noconfigdirs="$noconfigdirs gas ld newlib gprof textutils cvs"
 379     use_gnu_ld=no
 380     use_gnu_as=no
 381     ;;
 382   rs6000-*-*)
 383     # a gcc built textutils will cause the linker to hang on 'join'
 384     noconfigdirs="$noconfigdirs ld binutils gprof textutils"
 385     ;;
 386   m68k-apollo-*)
 387     noconfigdirs="$noconfigdirs ld binutils gprof"
 388     ;;
 389   mips*-*-irix5*)
 390     # The GNU linker does not support shared libraries.
 391     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 392     noconfigdirs="$noconfigdirs ld gprof emacs"
 393     ;;
 394   mips*-dec-bsd*)
 395     noconfigdirs="$noconfigdirs gprof"
 396     ;;
 397   mips*-*-bsd*)
 398     noconfigdirs="$noconfigdirs gprof ld"
 399     ;;
 400   mips*-*-*)
 401     noconfigdirs="$noconfigdirs gprof"
 402     ;;
 403   romp-*-*)
 404     noconfigdirs="bfd binutils ld gas opcodes"
 405     ;;
 406   sh-*-*)
 407     case "${host}" in
 408       i[345]86-*-vsta) ;; # don't add gprof back in
 409       *) configdirs=`echo gprof ${configdirs}` ;;
 410       i[345]86-*-go32) ;; # don't add gprof back in
 411       *) configdirs=`echo gprof ${configdirs}` ;;
 412     esac
 413     ;;
 414   sparc-*-sunos4*)
 415     if [ x${is_cross_compiler} != xno ] ; then
 416            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 417     else
 418            use_gnu_ld=no
 419     fi
 420     ;;
 421   vax-*-vms)
 422     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 423     ;;
 424   vax-*-*)
 425     noconfigdirs="$noconfigdirs newlib"
 426     ;;
 427   *-*-lynxos*)
 428      # Newlib makes problems for libg++ in crosses.
 429      noconfigdirs="$noconfigdirs newlib"
 430      ;;
 431 esac
 432
 433 # Remove the entries in $noconfigdirs from $configdirs.  If we have the
 434 # source for them, add them to $notsupp.
 435 notsupp=""
 436 for dir in . $noconfigdirs ; do
 437   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 438     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 439     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 440       notsupp="$notsupp $dir"
 441     fi
 442   fi
 443 done
 444
 445 # Produce a warning message for the subdirs we can't configure.
 446 # This isn't especially interesting in the Cygnus tree, but in the individual
 447 # FSF releases, it's important to let people know when their machine isn't
 448 # supported by the one or two programs in a package.
 449
 450 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 451   # If $appdirs is non-empty, at least one of those directories must still
 452   # be configured, or we error out.  (E.g., if the gas release supports a
 453   # specified target in some subdirs but not the gas subdir, we shouldn't
 454   # pretend that all is well.)
 455   if [ -n "$appdirs" ]; then
 456     for dir in $appdirs ; do
 457       if [ -r $dir/Makefile.in ] && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1 ; then
 458         appdirs=""
 459         break
 460       fi
 461     done
 462     if [ -n "$appdirs" ]; then
 463       echo "*** This configuration is not supported by this package." 1>&2
 464       exit 1
 465     fi
 466   fi
 467   # Okay, some application will build, or we don't care to check.  Still
 468   # notify of subdirs not getting built.
 469   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 470   echo "    ${notsupp}" 1>&2
 471   echo "    (Any other directories should still work fine.)" 1>&2
 472 fi
 473
 474 # Set with_gnu_as and with_gnu_ld as appropriate.
 475 #
 476 # This is done by determining whether or not the appropriate directory
 477 # is available, and by checking whether or not specific configurations
 478 # have requested that this magic not happen.
 479 #
 480 # The command line options always override the explicit settings in
 481 # configure.in, and the settings in configure.in override this magic.
 482 #
 483 # If the default for a toolchain is to use GNU as and ld, and you don't
 484 # want to do that, then you should use the --without-gnu-as and
 485 # --without-gnu-ld options for the configure script.
 486
 487 if [ x${use_gnu_as} = x ] ; then
 488   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 489     with_gnu_as=yes
 490     withoptions="$withoptions --with-gnu-as"
 491   fi
 492 fi
 493
 494 if [ x${use_gnu_ld} = x ] ; then
 495   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 496     with_gnu_ld=yes
 497     withoptions="$withoptions --with-gnu-ld"
 498   fi
 499 fi
 500
 501 #
 502 # Local Variables:
 503 # fill-column: 131
 504 # End:
 505 #