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   arm-*-*)
 322     noconfigdirs="$noconfigdirs ld"
 323     ;;
 324   h8300*-*-* | \
 325   h8500-*-*)
 326     noconfigdirs="$noconfigdirs libg++ libstdc++ libio librx"
 327     ;;
 328   hppa*-*-*elf*)
 329     # Do configure ld/binutils/gas for this case.
 330     ;;
 331   hppa*-*-*)
 332     # HP's C compiler doesn't handle Emacs correctly (but on BSD and Mach
 333     # cc is gcc, and on any system a user should be able to link cc to
 334     # whatever they want.  FIXME, emacs emacs19).
 335     case "${CC}" in
 336         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 337         *) ;;
 338     esac
 339     noconfigdirs="$noconfigdirs ld shellutils tk"
 340     ;;
 341   i[345]86-*-go32)
 342     # add the go32 support tools to the list
 343     # but don't build gdb
 344     configdirs=`echo go32 ${configdirs}`
 345     noconfigdirs="$noconfigdirs gdb libg++ libstdc++ libio librx"
 346     ;;
 347   i[345]86-*-sco*)
 348     noconfigdirs="$noconfigdirs gprof"
 349     ;;
 350   i[345]86-*-solaris2*)
 351     # The linker does static linking correctly, but the Solaris C library
 352     # has bugs such that some important functions won't work when statically
 353     # linked.  (See man pages for getpwuid, for example.)
 354     noconfigdirs="$noconfigdirs ld"
 355     ;;
 356   i[345]86-*-sysv4*)
 357     # The SYSV4 C compiler doesn't handle Emacs correctly
 358     case "${CC}" in
 359         "" | cc*) noconfigdirs="$noconfigdirs emacs emacs19" ;;
 360         *) ;;
 361     esac
 362     # but that's okay since emacs doesn't work anyway
 363     noconfigdirs="$noconfigdirs emacs emacs19"
 364     ;;
 365   powerpc-*-aix*)
 366     # copied from rs6000-*-* entry
 367     noconfigdirs="$noconfigdirs ld binutils gprof textutils cvs"
 368     ;;
 369   rs6000-*-lynxos*)
 370     # a gcc built textutils will cause the linker to hang on 'join'
 371     # The CVS server code doesn't work on the RS/6000
 372     # Newlib makes problems for libg++ in crosses.
 373     noconfigdirs="$noconfigdirs gas ld newlib gprof textutils cvs"
 374     use_gnu_ld=no
 375     use_gnu_as=no
 376     ;;
 377   rs6000-*-*)
 378     # a gcc built textutils will cause the linker to hang on 'join'
 379     noconfigdirs="$noconfigdirs ld binutils gprof textutils"
 380     ;;
 381   m68k-apollo-*)
 382     noconfigdirs="$noconfigdirs ld binutils gprof"
 383     ;;
 384   mips*-*-irix5*)
 385     # The GNU linker does not support shared libraries.
 386     # emacs is emacs 18, which does not work on Irix 5 (emacs19 does work)
 387     noconfigdirs="$noconfigdirs ld gprof emacs"
 388     ;;
 389   mips*-dec-bsd*)
 390     noconfigdirs="$noconfigdirs gprof"
 391     ;;
 392   mips*-*-bsd*)
 393     noconfigdirs="$noconfigdirs gprof ld"
 394     ;;
 395   mips*-*-*)
 396     noconfigdirs="$noconfigdirs gprof"
 397     ;;
 398   romp-*-*)
 399     noconfigdirs="bfd binutils ld gas opcodes"
 400     ;;
 401   sh-*-*)
 402     case "${host}" in
 403       i[345]86-*-vsta) ;; # don't add gprof back in
 404       *) configdirs=`echo gprof ${configdirs}` ;;
 405       i[345]86-*-go32) ;; # don't add gprof back in
 406       *) configdirs=`echo gprof ${configdirs}` ;;
 407     esac
 408     ;;
 409   sparc-*-sunos4*)
 410     if [ x${is_cross_compiler} != xno ] ; then
 411            noconfigdirs="$noconfigdirs gdb gdbtest newlib sim dejagnu expect tcl"
 412     else
 413            use_gnu_ld=no
 414     fi
 415     ;;
 416   vax-*-vms)
 417     noconfigdirs="$noconfigdirs bfd binutils gdb ld newlib opcodes"
 418     ;;
 419   vax-*-*)
 420     noconfigdirs="$noconfigdirs newlib"
 421     ;;
 422   *-*-lynxos*)
 423      # Newlib makes problems for libg++ in crosses.
 424      noconfigdirs="$noconfigdirs newlib"
 425      ;;
 426 esac
 427
 428 # Remove the entries in $noconfigdirs from $configdirs.  If we have the
 429 # source for them, add them to $notsupp.
 430 notsupp=""
 431 for dir in . $noconfigdirs ; do
 432   if [ $dir != . ]  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
 433     configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
 434     if [ -r $srcdir/$dir/configure ] || [ -r $srcdir/$dir/configure.in ]; then
 435       notsupp="$notsupp $dir"
 436     fi
 437   fi
 438 done
 439
 440 # Produce a warning message for the subdirs we can't configure.
 441 # This isn't especially interesting in the Cygnus tree, but in the individual
 442 # FSF releases, it's important to let people know when their machine isn't
 443 # supported by the one or two programs in a package.
 444
 445 if [ -n "${notsupp}" ] && [ -z "${norecursion}" ]; then
 446   # If $appdirs is non-empty, at least one of those directories must still
 447   # be configured, or we error out.  (E.g., if the gas release supports a
 448   # specified target in some subdirs but not the gas subdir, we shouldn't
 449   # pretend that all is well.)
 450   if [ -n "$appdirs" ]; then
 451     for dir in $appdirs ; do
 452       if [ -r $dir/Makefile.in ] && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1 ; then
 453         appdirs=""
 454         break
 455       fi
 456     done
 457     if [ -n "$appdirs" ]; then
 458       echo "*** This configuration is not supported by this package." 1>&2
 459       exit 1
 460     fi
 461   fi
 462   # Okay, some application will build, or we don't care to check.  Still
 463   # notify of subdirs not getting built.
 464   echo "*** This configuration is not supported in the following subdirectories:" 1>&2
 465   echo "    ${notsupp}" 1>&2
 466   echo "    (Any other directories should still work fine.)" 1>&2
 467 fi
 468
 469 # Set with_gnu_as and with_gnu_ld as appropriate.
 470 #
 471 # This is done by determining whether or not the appropriate directory
 472 # is available, and by checking whether or not specific configurations
 473 # have requested that this magic not happen.
 474 #
 475 # The command line options always override the explicit settings in
 476 # configure.in, and the settings in configure.in override this magic.
 477 #
 478 # If the default for a toolchain is to use GNU as and ld, and you don't
 479 # want to do that, then you should use the --without-gnu-as and
 480 # --without-gnu-ld options for the configure script.
 481
 482 if [ x${use_gnu_as} = x ] ; then
 483   if [ x${with_gnu_as} != xno ] && echo " ${configdirs} " | grep " ${gasdir} " > /dev/null 2>&1 && [ -d ${srcdir}/${gasdir} ] ; then
 484     with_gnu_as=yes
 485     withoptions="$withoptions --with-gnu-as"
 486   fi
 487 fi
 488
 489 if [ x${use_gnu_ld} = x ] ; then
 490   if [ x${with_gnu_ld} != xno ] && echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 && [ -d ${srcdir}/ld ] ; then
 491     with_gnu_ld=yes
 492     withoptions="$withoptions --with-gnu-ld"
 493   fi
 494 fi
 495
 496 #
 497 # Local Variables:
 498 # fill-column: 131
 499 # End:
 500 #