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
  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 "$could_use.  You should change your"
 150             echo "PATH or CC variable and rerun configure."
 151         fi
 152       fi
 153   ;;
 154 esac
 155
 156 # We default to --with-shared on platforms where -fpic is meaningless.
 157 # Well, we don't yet, but we will.
 158 if false && [ "${host}" = "${target}" ] && [ x${enable_shared} = x ]; then
 159   case "${target}" in
 160     alpha-dec-osf*)     enable_shared=yes ;;
 161     mips-sgi-irix5*)    enable_shared=yes ;;
 162     *)                  enable_shared=no ;;
 163   esac
 164 fi
 165
 166 if [ x${enable_shared} = xyes ]; then
 167   waugh=
 168   case "${host}" in
 169     hppa*-*-*)          waugh=config/mh-papic ;;
 170     i[345]86-*-*)       waugh=config/mh-x86pic ;;
 171     *-*-*)              waugh=config/mh-${target_cpu}pic ;;
 172   esac
 173   if [ -n "${host_makefile_frag}" ] && [ -f ${srcdir}/${waugh} ]; then
 174     cat ${srcdir}/${host_makefile_frag} > mh-frag
 175     cat ${srcdir}/${waugh} >> mh-frag
 176     host_makefile_frag=mh-frag
 177   fi
 178 fi
 179
 180 # per-target:
 181
 182 case "${target}" in
 183   v810*)                target_makefile_frag=config/mt-v810 ;;
 184 esac
 185
 186 gasdir=gas
 187 use_gnu_ld=
 188 use_gnu_as=
 189
 190 # some tools are so dependent upon X11 that if we're not building with X,
 191 # it's not even worth trying to configure, much less build, that tool.
 192
 193 case ${with_x} in
 194   yes | "")  # the default value for this tree is that X11 is available
 195         ;;
 196   no)
 197         configdirs=`echo " ${configdirs} " | sed -e 's/ tk / /;/ gash / /'`
 198         ;;
 199   *)
 200         echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2
 201         ;;
 202 esac
 203
 204 # Some tools are only suitable for building in a "native" situation.
 205 # Those are added when we have a host==target configuration.  For cross
 206 # toolchains, we add some directories that should only be useful in a
 207 # cross-compiler.
 208
 209 is_cross_compiler=
 210
 211 if [ x"${host}" = x"${target}" ] ; then
 212         # when doing a native toolchain, don't build the targets
 213         # that are in the 'cross only' list
 214         for i in ${cross_only} ; do
 215           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 216         done
 217         is_cross_compiler=no
 218 else
 219         # similarly, don't build the targets in the 'native only'
 220         # list when building a cross compiler
 221         for i in ${native_only} ; do
 222           configdirs=`echo " ${configdirs} " | sed -e "s/ $i / /"`
 223         done
 224         is_cross_compiler=yes
 225 fi
 226
 227 copy_dirs=
 228
 229 # Handle --with-headers=XXX.  The contents of the named directory are
 230 # copied to $(tooldir)/include.
 231 if [ x"${with_headers}" != x ]; then
 232   if [ x${is_cross_compiler} = xno ]; then
 233     echo 1>&2 '***' --with-headers is only supported when cross compiling
 234     exit 1
 235   fi
 236   case "${exec_prefixoption}" in
 237   "") x=${prefix} ;;
 238   *) x=${exec_prefix} ;;
 239   esac
 240   copy_dirs="${copy_dirs} ${with_headers} $x/${target_alias}/include"
 241 fi
 242
 243 # Handle --with-libs=XXX.  Multiple directories are permitted.  The
 244 # contents are copied to $(tooldir)/lib.
 245 if [ x"${with_libs}" != x ]; then
 246   if [ x${is_cross_compiler} = xno ]; then
 247     echo 1>&2 '***' --with-libs is only supported when cross compiling
 248     exit 1
 249   fi
 250   # Copy the libraries in reverse order, so that files in the first named
 251   # library override files in subsequent libraries.
 252   case "${exec_prefixoption}" in
 253   "") x=${prefix} ;;
 254   *) x=${exec_prefix} ;;
 255   esac
 256   for l in ${with_libs}; do
 257     copy_dirs="$l $x/${target_alias}/lib ${copy_dirs}"
 258   done
 259 fi
 260
 261 # If both --with-headers and --with-libs are specified, default to
 262 # --without-newlib.
 263 if [ x"${with_headers}" != x ] && [ x"${with_libs}" != x ]; then
 264   if [ x"${with_newlib}" = x ]; then
 265     with_newlib=no
 266   fi
 267 fi
 268
 269 # Recognize --without-newlib.
 270 if [ x${with_newlib} = xno ]; then
 271   configdirs=`echo " ${configdirs} " | sed -e 's/ newlib / /'`
 272 fi
 273
 274 # Handle ${copy_dirs}
 275 set fnord ${copy_dirs}
 276 shift
 277 while [ $# != 0 ]; do
 278   if [ -f $2/COPIED ] && [ x"`cat $2/COPIED`" = x"$1" ]; then
 279     :
 280   else
 281     echo Copying $1 to $2
 282
 283     # Use the install script to create the directory and all required
 284     # parent directories.
 285     if [ -d $2 ]; then
 286       :
 287     else
 288       echo >config.temp
 289       ${srcdir}/install.sh -c -m 644 config.temp $2/COPIED
 290     fi
 291
 292     # Copy the directory, assuming we have tar.
 293     # FIXME: Should we use B in the second tar?  Not all systems support it.
 294     (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
 295
 296     # It is the responsibility of the user to correctly adjust all
 297     # symlinks.  If somebody can figure out how to handle them correctly
 298     # here, feel free to add the code.
 299
 300     echo $1 > $2/COPIED
 301   fi
 302   shift; shift
 303 done
 304
 305 # Configure extra directories which are host specific
 306
 307 case "${host}" in
 308   i[345]86-*-go32*)
 309                   configdirs="$configdirs dosrel" ;;
 310 esac
 311
 312 # Remove more programs from consideration, based on the host or
 313 # target this usually means that a port of the program doesn't
 314 # exist yet.
 315
 316 noconfigdirs=""
 317
 318 case "${host}" in
 319   i[345]86-*-netbsd*)
 320     noconfigdirs="tk fileutils"
 321     ;;
 322   i[345]86-*-vsta)
 323     noconfigdirs="tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 324     ;;
 325   i[345]86-*-go32)
 326     noconfigdirs="tcl expect deja-gnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff"
 327     ;;
 328 esac
 329
 330
 331 case "${target}" in
 332   *-*-netware)
 333     noconfigdirs="$noconfigdirs libg++ libstdc++ librx newlib xiberty"
 334     ;;
 335   alpha-dec-osf*)
 336     # ld works, but does not support shared libraries.  emacs doesn't
 337     # work.  newlib is not 64 bit ready.  I'm not sure about emacs19,
 338     # fileutils or grep.
 339     noconfigdirs="$noconfigdirs ld emacs emacs19 fileutils grep newlib"
 340     ;;
 341   alpha*-*-*)
 342     # newlib is not 64 bit ready
 343     noconfigdirs="$noconfigdirs newlib"
 344     ;;
 345 # start-sanitize-arc
 346   arc-*-*)
 347     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 348     ;;
 349 # end-sanitize-arc
 350   arm-*-*)
 351     noconfigdirs="$noconfigdirs ld"
 352     ;;
 353   h8300*-*-* | \
 354   h8500-*-*)
 355     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 356     ;;
 357   hppa*-*-*elf*)
 358     # Do configure ld/binutils/gas for this case.
 359     ;;
 360   hppa*-*-*)
 361     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 362     # cc is gcc, and on any system a user should be able to link cc to
 363     # whatever they want.  FIXME, emacs emacs19).
 364     case "${CC}" in
 365         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 366         *) ;;
 367     esac
 368     noconfigdirs="$noconfigdirs ld shellutils"
 369     ;;
 370   i[345]86-*-go32)
 371     # add the go32 support tools to the list
 372     # but don't build gdb
 373     configdirs=`echo go32 ${configdirs}`
 374     noconfigdirs="$noconfigdirs gdb libg++ libstdc++ libio librx"
 375     ;;
 376   i[345]86-*-sco*)
 377     noconfigdirs="$noconfigdirs gprof"
 378     ;;
 379   i[345]86-*-solaris2*)
 380     # The linker does static linking correctly, but the Solaris C library
 381     # has bugs such that some important functions won't work when statically
 382     # linked.  (See man pages for getpwuid, for example.)
 383     noconfigdirs="$noconfigdirs ld"
 384     ;;
 385   i[345]86-*-sysv4*)
 386     # The SYSV4 C compiler doesn't handle Emacs correctly
 387     case "${CC}" in
 388         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 389         *) ;;
 390     esac
 391     # but that's okay since emacs doesn't work anyway
 392     noconfigdirs="$noconfigdirs emacs emacs19"
 393     ;;
 394   powerpc-*-aix*)
 395     # copied from rs6000-*-* entry
 396     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 397     ;;
 398   rs6000-*-lynxos*)
 399     # a gcc built textutils will cause the linker to hang on 'join'
 400     # The CVS server code doesn't work on the RS/6000
 401     # Newlib makes problems for libg++ in crosses.
 402     noconfigdirs="$noconfigdirs gas ld newlib gprof textutils cvs"
 403     use_gnu_ld=no
 404     use_gnu_as=no
 405     ;;
 406   rs6000-*-*)
 407     # a gcc built textutils will cause the linker to hang on 'join'
 408     noconfigdirs="$noconfigdirs ld binutils gprof textutils"
 409     ;;
 410   m68k-apollo-*)
 411     noconfigdirs="$noconfigdirs ld binutils gprof"
 412     ;;
 413   mips*-*-irix5*)
 414     # The GNU linker does not support shared libraries.
 415     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 416     noconfigdirs="$noconfigdirs ld gprof emacs"
 417     ;;
 418   mips*-dec-bsd*)
 419     noconfigdirs="$noconfigdirs gprof"
 420     ;;
 421   mips*-*-bsd*)
 422     noconfigdirs="$noconfigdirs gprof ld"
 423     ;;
 424   mips*-*-*)
 425     noconfigdirs="$noconfigdirs gprof"
 426     ;;
 427   romp-*-*)
 428     noconfigdirs="bfd binutils ld gas opcodes"
 429     ;;
 430   sh-*-*)
 431     case "${host}" in
 432       i[345]86-*-vsta) ;; # don't add gprof back in
 433       *) configdirs=`echo gprof ${configdirs}` ;;
 434       i[345]86-*-go32) ;; # don't add gprof back in
 435       *) configdirs=`echo gprof ${configdirs}` ;;
 436     esac
 437     ;;
 438   sparc-*-sunos4*)
 439     if [ x${is_cross_compiler} != xno ] ; then
 440            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 441     else
 442            use_gnu_ld=no
 443     fi
 444     ;;
 445   vax-*-vms)
 446     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 447     ;;
 448   vax-*-*)
 449     noconfigdirs="$noconfigdirs newlib"
 450     ;;
 451   *-*-lynxos*)
 452      # Newlib makes problems for libg++ in crosses.
 453      noconfigdirs="$noconfigdirs newlib"
 454      ;;
 455 esac
 456
 457 # Remove the entries in $noconfigdirs from $configdirs.  If we have the
 458 # source for them, add them to $notsupp.
 459 notsupp=""
 460 for dir in . $noconfigdirs ; do
 461   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 462     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 463     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 464       notsupp="$notsupp $dir"
 465     fi
 466   fi
 467 done
 468
 469 # Produce a warning message for the subdirs we can't configure.
 470 # This isn't especially interesting in the Cygnus tree, but in the individual
 471 # FSF releases, it's important to let people know when their machine isn't
 472 # supported by the one or two programs in a package.
 473
 474 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 475   # If $appdirs is non-empty, at least one of those directories must still
 476   # be configured, or we error out.  (E.g., if the gas release supports a
 477   # specified target in some subdirs but not the gas subdir, we shouldn't
 478   # pretend that all is well.)
 479   if [ -n "$appdirs" ]; then
 480     for dir in $appdirs ; do
 481       if [ -r $dir/Makefile.in ] && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1 ; then
 482         appdirs=""
 483         break
 484       fi
 485     done
 486     if [ -n "$appdirs" ]; then
 487       echo "*** This configuration is not supported by this package." 1>&2
 488       exit 1
 489     fi
 490   fi
 491   # Okay, some application will build, or we don't care to check.  Still
 492   # notify of subdirs not getting built.
 493   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 494   echo "    ${notsupp}" 1>&2
 495   echo "    (Any other directories should still work fine.)" 1>&2
 496 fi
 497
 498 # Set with_gnu_as and with_gnu_ld as appropriate.
 499 #
 500 # This is done by determining whether or not the appropriate directory
 501 # is available, and by checking whether or not specific configurations
 502 # have requested that this magic not happen.
 503 #
 504 # The command line options always override the explicit settings in
 505 # configure.in, and the settings in configure.in override this magic.
 506 #
 507 # If the default for a toolchain is to use GNU as and ld, and you don't
 508 # want to do that, then you should use the --without-gnu-as and
 509 # --without-gnu-ld options for the configure script.
 510
 511 if [ x${use_gnu_as} = x ] ; then
 512   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 513     with_gnu_as=yes
 514     withoptions="$withoptions --with-gnu-as"
 515   fi
 516 fi
 517
 518 if [ x${use_gnu_ld} = x ] ; then
 519   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 520     with_gnu_ld=yes
 521     withoptions="$withoptions --with-gnu-ld"
 522   fi
 523 fi
 524
 525 if [ x${enable_shared} = xyes ]; then
 526   case "${target}" in
 527     hppa*-*-*)          target_makefile_frag=config/mt-papic ;;
 528     i[345]86-*-*)       target_makefile_frag=config/mt-x86pic ;;
 529     *-*-*)              target_makefile_frag=config/mt-${target_cpu}pic ;;
 530   esac
 531 fi
 532
 533 #
 534 # Local Variables:
 535 # fill-column: 131
 536 # End:
 537 #