1#   Copyright (C) 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
2#   2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
3#
4# This file is free software; you can redistribute it and/or modify it
5# under the terms of the GNU General Public License as published by
6# the Free Software Foundation; either version 2 of the License, or
7# (at your option) any later version.
8#
9# This program is distributed in the hope that it will be useful, but
10# WITHOUT ANY WARRANTY; without even the implied warranty of
11# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
12# General Public License for more details.
13#
14# You should have received a copy of the GNU General Public License
15# along with this program; if not, write to the Free Software
16# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
17
18##############################################################################
19### WARNING: this file contains embedded tabs.  Do not run untabify on this file.
20
21sinclude(config/acx.m4)
22
23AC_INIT(move-if-change)
24AC_PREREQ(2.59)
25
26# Find the build, host, and target systems.
27ACX_NONCANONICAL_BUILD
28ACX_NONCANONICAL_HOST
29ACX_NONCANONICAL_TARGET
30
31dnl Autoconf 2.5x and later will set a default program prefix if
32dnl --target was used, even if it was the same as --host.  Disable
33dnl that behavior.  This must be done before AC_CANONICAL_SYSTEM
34dnl to take effect.
35test "$host_noncanonical" = "$target_noncanonical" &&
36  test "$program_prefix$program_suffix$program_transform_name" = \
37    NONENONEs,x,x, &&
38  program_transform_name=s,y,y,
39
40AC_CANONICAL_SYSTEM
41AC_ARG_PROGRAM
42
43m4_pattern_allow([^AS_FOR_TARGET$])dnl
44
45# Get 'install' or 'install-sh' and its variants.
46AC_PROG_INSTALL
47ACX_PROG_LN
48AC_PROG_LN_S
49
50### we might need to use some other shell than /bin/sh for running subshells
51### If we are on Windows, search for the shell.  This will permit people
52### to not have /bin/sh, but to be able to see /SOME/PATH/sh configure
53### without also having to set CONFIG_SHELL.  This code will work when
54### using bash, which sets OSTYPE.
55case "${OSTYPE}" in
56*win32*)
57  if test x${CONFIG_SHELL} = x ; then
58    if test ! -f /bin/sh ; then
59      if test x${SHELL} != x && test -f ${SHELL} ; then
60	CONFIG_SHELL=${SHELL}
61	export CONFIG_SHELL
62      else
63	for prog in sh sh.exe bash bash.exe; do
64	  IFS="${IFS=	}"; save_ifs="$IFS"; IFS="${IFS}:"
65	  for dir in $PATH; do
66	    test -z "$dir" && dir=.
67	    if test -f $dir/$prog; then
68	      CONFIG_SHELL=$dir/$prog
69	      export CONFIG_SHELL
70	      break
71	    fi
72	  done
73	  IFS="$save_ifs"
74	  test -n "${CONFIG_SHELL}" && break
75	done
76      fi
77    fi
78  fi
79  ;;
80esac
81
82config_shell=${CONFIG_SHELL-/bin/sh}
83
84progname=$0
85# if PWD already has a value, it is probably wrong.
86if test -n "$PWD" ; then PWD=`${PWDCMD-pwd}`; fi
87
88# Export original configure arguments for use by sub-configures.
89# Quote arguments with shell meta charatcers.
90TOPLEVEL_CONFIGURE_ARGUMENTS=
91set -- "$progname" "$@"
92for ac_arg
93do
94  case "$ac_arg" in
95  *" "*|*"	"*|*[[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?\']]*)
96    ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"`
97    # if the argument is of the form -foo=baz, quote the baz part only
98    ac_arg=`echo "'$ac_arg'" | sed "s/^'\([[-a-zA-Z0-9]]*=\)/\\1'/"` ;;
99  *) ;;
100  esac
101  # Add the quoted argument to the list.
102  TOPLEVEL_CONFIGURE_ARGUMENTS="$TOPLEVEL_CONFIGURE_ARGUMENTS $ac_arg"
103done
104# Remove the initial space we just introduced and, as these will be
105# expanded by make, quote '$'.
106TOPLEVEL_CONFIGURE_ARGUMENTS=`echo "x$TOPLEVEL_CONFIGURE_ARGUMENTS" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
107AC_SUBST(TOPLEVEL_CONFIGURE_ARGUMENTS)
108
109moveifchange=${srcdir}/move-if-change
110
111srcpwd=`cd ${srcdir} ; ${PWDCMD-pwd}`
112
113# We pass INSTALL explicitly to sub-makes.  Make sure that it is not
114# a relative path.
115if test "$INSTALL" = "${srcdir}/install-sh -c"; then
116  INSTALL="${srcpwd}/install-sh -c"
117fi
118
119# Set srcdir to "." if that's what it is.
120# This is important for multilib support.
121pwd=`${PWDCMD-pwd}`
122if test "${pwd}" = "${srcpwd}" ; then
123  srcdir=.
124fi
125
126topsrcdir=$srcpwd
127
128extra_host_args=
129
130### To add a new directory to the tree, first choose whether it is a target
131### or a host dependent tool.  Then put it into the appropriate list
132### (library or tools, host or target), doing a dependency sort.
133
134# Subdirs will be configured in the order listed in build_configdirs, 
135# configdirs, or target_configdirs; see the serialization section below.
136
137# Dependency sorting is only needed when *configuration* must be done in 
138# a particular order.  In all cases a dependency should be specified in 
139# the Makefile, whether or not it's implicitly specified here.
140
141# Double entries in build_configdirs, configdirs, or target_configdirs may
142# cause circular dependencies and break everything horribly.
143
144# these library is used by various programs built for the build
145# environment
146#
147build_libs="build-libiberty"
148
149# these tools are built for the build environment
150build_tools="build-texinfo build-byacc build-flex build-bison build-m4 build-fixincludes"
151
152# these libraries are used by various programs built for the host environment
153#
154host_libs="intl mmalloc libiberty opcodes bfd readline tcl tk itcl libgui zlib libcpp libdecnumber gmp mpfr"
155
156# these tools are built for the host environment
157# Note, the powerpc-eabi build depends on sim occurring before gdb in order to
158# know that we are building the simulator.
159# binutils, gas and ld appear in that order because it makes sense to run
160# "make check" in that particular order.
161host_tools="texinfo byacc flex bison binutils gas ld fixincludes gcc sid sim gdb make patch prms send-pr gprof etc expect dejagnu ash bash bzip2 m4 autoconf automake libtool diff rcs fileutils shellutils time textutils wdiff find uudecode hello tar gzip indent recode release sed utils guile perl gawk findutils gettext zip fastjar gnattools"
162
163# libgcj represents the runtime libraries only used by gcj.
164libgcj="target-libffi \
165	target-zlib \
166	target-qthreads \
167	target-libjava"
168
169# these libraries are built for the target environment, and are built after
170# the host libraries and the host tools (which may be a cross compiler)
171#
172target_libraries="target-libgcc \
173		target-libiberty \
174		target-libgloss \
175		target-newlib \
176		target-libstdc++-v3 \
177		target-libmudflap \
178		target-libssp \
179		target-libgfortran \
180		target-boehm-gc \
181		${libgcj} \
182		target-libobjc \
183		target-libada \
184		target-libgomp"
185
186# these tools are built using the target libraries, and are intended to
187# run only in the target environment
188#
189# note: any program that *uses* libraries that are in the "target_libraries"
190# list belongs in this list.  those programs are also very likely
191# candidates for the "native_only" list which follows
192#
193target_tools="target-examples target-groff target-gperf target-rda"
194
195################################################################################
196
197## All tools belong in one of the four categories, and are assigned above
198## We assign ${configdirs} this way to remove all embedded newlines.  This
199## is important because configure will choke if they ever get through.
200## ${configdirs} is directories we build using the host tools.
201## ${target_configdirs} is directories we build using the target tools.
202configdirs=`echo ${host_libs} ${host_tools}`
203target_configdirs=`echo ${target_libraries} ${target_tools}`
204build_configdirs=`echo ${build_libs} ${build_tools}`
205
206################################################################################
207
208srcname="gnu development package"
209
210# This gets set non-empty for some net releases of packages.
211appdirs=""
212
213# Define is_cross_compiler to save on calls to 'test'.
214is_cross_compiler=
215if test x"${host}" = x"${target}" ; then
216  is_cross_compiler=no
217else
218  is_cross_compiler=yes
219fi	
220
221# Find the build and target subdir names.
222GCC_TOPLEV_SUBDIRS
223
224# Skipdirs are removed silently.
225skipdirs=
226# Noconfigdirs are removed loudly.
227noconfigdirs=""
228
229use_gnu_ld=
230# Make sure we don't let GNU ld be added if we didn't want it.
231if test x$with_gnu_ld = xno ; then
232  use_gnu_ld=no
233  noconfigdirs="$noconfigdirs ld"
234fi
235
236use_gnu_as=
237# Make sure we don't let GNU as be added if we didn't want it.
238if test x$with_gnu_as = xno ; then
239  use_gnu_as=no
240  noconfigdirs="$noconfigdirs gas"
241fi
242
243# some tools are so dependent upon X11 that if we're not building with X, 
244# it's not even worth trying to configure, much less build, that tool.
245
246case ${with_x} in
247  yes | "") ;; # the default value for this tree is that X11 is available
248  no)
249    skipdirs="${skipdirs} tk itcl libgui"
250    # We won't be able to build gdbtk without X.
251    enable_gdbtk=no 
252    ;;
253  *)  echo "*** bad value \"${with_x}\" for -with-x flag; ignored" 1>&2 ;;
254esac
255
256# Some tools are only suitable for building in a "native" situation.
257# Remove these if host!=target.  
258native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
259
260# Similarly, some are only suitable for cross toolchains.
261# Remove these if host=target.
262cross_only="target-libgloss target-newlib target-opcodes"
263
264case $is_cross_compiler in
265  no) skipdirs="${skipdirs} ${cross_only}" ;;
266  yes) skipdirs="${skipdirs} ${native_only}" ;;
267esac
268
269# If both --with-headers and --with-libs are specified, default to
270# --without-newlib.
271if test x"${with_headers}" != x && test x"${with_headers}" != xno \
272   && test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
273  if test x"${with_newlib}" = x ; then
274    with_newlib=no
275  fi
276fi
277
278# Recognize --with-newlib/--without-newlib.
279case ${with_newlib} in
280  no) skipdirs="${skipdirs} target-newlib" ;;
281  yes) skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'` ;;
282esac
283
284# Configure extra directories which are host specific
285
286case "${host}" in
287  *-cygwin*)
288    configdirs="$configdirs libtermcap" ;;
289esac
290
291# A target can indicate whether a language isn't supported for some reason.
292# Only spaces may be used in this macro; not newlines or tabs.
293unsupported_languages=
294
295# Remove more programs from consideration, based on the host or 
296# target this usually means that a port of the program doesn't
297# exist yet.
298
299case "${host}" in
300  hppa*64*-*-*)
301    noconfigdirs="$noconfigdirs byacc"
302    ;;
303  i[[3456789]]86-*-vsta)
304    noconfigdirs="$noconfigdirs tcl expect dejagnu make texinfo bison patch flex byacc send-pr gprof uudecode dejagnu diff guile perl itcl gnuserv gettext"
305    ;;
306  i[[3456789]]86-*-go32* | i[[3456789]]86-*-msdosdjgpp*)
307    noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
308    ;;
309  x86_64-*-mingw*)
310    noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
311    ;;
312  i[[3456789]]86-*-mingw32*)
313    # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
314    noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
315    ;;
316  i[[3456789]]86-*-beos*)
317    noconfigdirs="$noconfigdirs tk itcl libgui gdb"
318    ;;
319  *-*-cygwin*)
320    noconfigdirs="$noconfigdirs autoconf automake send-pr rcs guile perl"
321    ;;
322  *-*-netbsd*)
323    noconfigdirs="$noconfigdirs rcs"
324    ;;
325  ppc*-*-pe)
326    noconfigdirs="$noconfigdirs patch diff make tk tcl expect dejagnu autoconf automake texinfo bison send-pr gprof rcs guile perl itcl gnuserv"
327    ;;
328  powerpc-*-beos*)
329    noconfigdirs="$noconfigdirs tk itcl libgui gdb dejagnu readline"
330    ;;
331esac
332
333
334AC_ARG_ENABLE(libada,
335[  --enable-libada        Builds libada directory],
336ENABLE_LIBADA=$enableval,
337ENABLE_LIBADA=yes)
338if test "${ENABLE_LIBADA}" != "yes" ; then
339  noconfigdirs="$noconfigdirs gnattools"
340fi
341
342AC_ARG_ENABLE(libssp,
343[  --enable-libssp        Builds libssp directory],
344ENABLE_LIBSSP=$enableval,
345ENABLE_LIBSSP=yes)
346
347# Save it here so that, even in case of --enable-libgcj, if the Java
348# front-end isn't enabled, we still get libgcj disabled.
349libgcj_saved=$libgcj
350case $enable_libgcj in
351yes)
352  # If we reset it here, it won't get added to noconfigdirs in the
353  # target-specific build rules, so it will be forcibly enabled
354  # (unless the Java language itself isn't enabled).
355  libgcj=
356  ;;
357no)
358  # Make sure we get it printed in the list of not supported target libs.
359  noconfigdirs="$noconfigdirs ${libgcj}"
360  ;;
361esac
362
363
364# Disable libmudflap on some systems.
365if test x$enable_libmudflap = x ; then
366    case "${target}" in
367    *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu | *-*-linux-uclibc* | *-*-uclinux*)
368        # Enable libmudflap by default in GNU and friends.
369	;;
370    *-*-freebsd*)
371        # Enable libmudflap by default in FreeBSD.
372	;;
373    *)
374        # Disable it by default everywhere else.
375	noconfigdirs="$noconfigdirs target-libmudflap"
376	;;
377    esac
378fi
379
380# Disable libgomp on non POSIX hosted systems.
381if test x$enable_libgomp = x ; then
382    # Enable libgomp by default on hosted POSIX systems.
383    case "${target}" in
384    *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
385	;;
386    *-*-netbsd* | *-*-freebsd* | *-*-openbsd*)
387	;;
388    *-*-solaris2* | *-*-sysv4* | *-*-irix6* | *-*-osf* | *-*-hpux11*)
389	;;
390    *-*-darwin* | *-*-aix*)
391	;;
392    *)
393	noconfigdirs="$noconfigdirs target-libgomp"
394	;;
395    esac
396fi
397
398
399case "${target}" in
400  *-*-chorusos)
401    noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
402    ;;
403  powerpc-*-darwin* | i[[3456789]]86-*-darwin*)
404    noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes gdb gprof"
405    noconfigdirs="$noconfigdirs sim target-rda"
406    ;;
407  *-*-darwin*)
408    noconfigdirs="$noconfigdirs ld gas gdb gprof"
409    noconfigdirs="$noconfigdirs sim target-rda"
410    noconfigdirs="$noconfigdirs ${libgcj}"
411    ;;
412  *-*-freebsd[[12]] | *-*-freebsd[[12]].* | *-*-freebsd*aout*)
413    noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
414    ;;
415  *-*-freebsd*)
416    noconfigdirs="$noconfigdirs target-newlib target-libgloss"
417    if test "x$with_gmp" = x && test "x$with_gmp_dir" = x \
418	&& test -f /usr/local/include/gmp.h; then
419      with_gmp=/usr/local
420    fi
421
422    # Skip some stuff that's unsupported on some FreeBSD configurations.
423    case "${target}" in
424      i*86-*-*) ;;
425      alpha*-*-*) ;;
426      *)
427	noconfigdirs="$noconfigdirs ${libgcj}"
428	;;
429    esac
430    ;;
431  *-*-kaos*)
432    # Remove unsupported stuff on all kaOS configurations.
433    skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
434    skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
435    skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
436    noconfigdirs="$noconfigdirs target-libgloss"
437    ;;
438  *-*-netbsd*)
439    # Skip some stuff on all NetBSD configurations.
440    noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss"
441
442    # Skip some stuff that's unsupported on some NetBSD configurations.
443    case "${target}" in
444      i*86-*-netbsdelf*) ;;
445      arm*-*-netbsdelf*) ;;
446      *)
447	noconfigdirs="$noconfigdirs ${libgcj}"
448	;;
449    esac
450    ;;
451  *-*-netware*)
452    noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
453    ;;
454  *-*-rtems*)
455    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
456    ;;
457    # The tpf target doesn't support gdb yet.
458  *-*-tpf*)
459    noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
460    ;;
461  *-*-uclinux*)
462    noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
463    ;;
464  *-*-vxworks*)
465    noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty target-libstdc++-v3 ${libgcj}"
466    ;;
467  alpha*-dec-osf*)
468    # ld works, but does not support shared libraries.
469    # newlib is not 64 bit ready.  I'm not sure about fileutils.
470    # gas doesn't generate exception information.
471    noconfigdirs="$noconfigdirs gas ld fileutils target-newlib target-libgloss"
472    ;;
473  alpha*-*-*vms*)
474    noconfigdirs="$noconfigdirs gdb ld target-newlib target-libgloss ${libgcj}"
475    ;;
476  alpha*-*-linux*)
477    # newlib is not 64 bit ready
478    noconfigdirs="$noconfigdirs target-newlib target-libgloss"
479    ;;
480  alpha*-*-*)
481    # newlib is not 64 bit ready
482    noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
483    ;;
484  am33_2.0-*-linux*)
485    noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
486    ;;
487  sh-*-linux*)
488    noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss"
489    ;;    
490  sh*-*-pe|mips*-*-pe|*arm-wince-pe)
491    noconfigdirs="$noconfigdirs ${libgcj}"
492    noconfigdirs="$noconfigdirs target-examples"
493    noconfigdirs="$noconfigdirs target-libiberty texinfo send-pr"
494    noconfigdirs="$noconfigdirs tcl tk itcl libgui sim"
495    noconfigdirs="$noconfigdirs expect dejagnu"
496    # the C++ libraries don't build on top of CE's C libraries
497    noconfigdirs="$noconfigdirs target-libstdc++-v3"
498    noconfigdirs="$noconfigdirs target-newlib"
499    case "${host}" in
500      *-*-cygwin*) ;; # keep gdb and readline
501      *) noconfigdirs="$noconfigdirs gdb readline"
502	 ;;
503    esac
504    ;;
505  arc-*-*)
506    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
507    ;;
508  arm-semi-aof )
509    ;;
510  arm-*-coff | strongarm-*-coff | xscale-*-coff)
511    noconfigdirs="$noconfigdirs ${libgcj}"
512    ;;
513  arm-*-elf* | strongarm-*-elf* | xscale-*-elf* | arm*-*-eabi* )
514    noconfigdirs="$noconfigdirs target-libffi target-qthreads"
515    ;;
516  arm*-*-linux-gnueabi)
517    noconfigdirs="$noconfigdirs target-libffi target-qthreads"
518    noconfigdirs="$noconfigdirs target-libjava target-libobjc"
519    case ${with_newlib} in
520      no) noconfigdirs="$noconfigdirs target-newlib target-libgloss"
521    esac
522    ;;
523  arm*-*-symbianelf*)
524    noconfigdirs="$noconfigdirs ${libgcj} target-libiberty"
525    ;;
526  arm-*-pe*)
527    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
528    ;;
529  thumb-*-coff)
530    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
531    ;;
532  thumb-*-elf)
533    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
534    ;;
535  thumb-*-pe)
536    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
537    ;;
538  arm-*-riscix*)
539    noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
540    ;;
541  avr-*-*)
542    noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
543    ;;
544  bfin-*-*)
545    noconfigdirs="$noconfigdirs gdb"
546    if test x${is_cross_compiler} != xno ; then
547      target_configdirs="${target_configdirs} target-bsp target-cygmon"
548    fi
549    ;;
550  c4x-*-* | tic4x-*-*)
551    noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
552    ;;
553  c54x*-*-* | tic54x-*-*)
554    noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj} gcc gdb newlib"
555    ;;
556  cris-*-* | crisv32-*-*)
557    unsupported_languages="$unsupported_languages java"
558    case "${target}" in
559      *-*-aout)
560	unsupported_languages="$unsupported_languages fortran"
561	noconfigdirs="$noconfigdirs target-libffi target-boehm-gc";;
562      *-*-elf)
563	unsupported_languages="$unsupported_languages fortran"
564	noconfigdirs="$noconfigdirs target-boehm-gc";;
565      *-*-linux*)
566	noconfigdirs="$noconfigdirs target-newlib target-libgloss";;
567      *)
568	unsupported_languages="$unsupported_languages fortran"
569	noconfigdirs="$noconfigdirs ${libgcj} target-newlib target-libgloss";;
570    esac
571    ;;
572  crx-*-*)
573    noconfigdirs="$noconfigdirs target-libstdc++-v3 target-mudflap ${libgcj}"
574    ;;
575  d10v-*-*)
576    noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
577    ;;
578  d30v-*-*)
579    noconfigdirs="$noconfigdirs ${libgcj} gdb"
580    ;;
581  fr30-*-elf*)
582    noconfigdirs="$noconfigdirs ${libgcj} gdb"
583    ;;
584  frv-*-*)
585    noconfigdirs="$noconfigdirs ${libgcj}"
586    ;;
587  h8300*-*-*)
588    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
589    ;;
590  h8500-*-*)
591    noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
592    ;;
593  hppa1.1-*-osf* | hppa1.1-*-bsd* )
594    ;;
595  hppa*64*-*-linux* | parisc*64*-*-linux*)
596    # In this case, it's because the hppa64-linux target is for
597    # the kernel only at this point and has no libc, and thus no
598    # headers, crt*.o, etc., all of which are needed by these.
599    noconfigdirs="$noconfigdirs target-zlib"
600    ;;
601  parisc*-*-linux* | hppa*-*-linux*)
602    ;;
603  hppa*-*-*elf* | \
604  hppa*-*-lites* | \
605  hppa*-*-openbsd* | \
606  hppa*64*-*-*)
607    noconfigdirs="$noconfigdirs ${libgcj}"
608    ;;
609  hppa*-hp-hpux11*)
610    noconfigdirs="$noconfigdirs ld shellutils"
611    ;;
612  hppa*-*-*)
613    # According to Alexandre Oliva <aoliva@redhat.com>, libjava won't
614    # build on HP-UX 10.20.
615    noconfigdirs="$noconfigdirs ld shellutils ${libgcj}"
616    ;;
617  i960-*-*)
618    noconfigdirs="$noconfigdirs ${libgcj} gdb"
619    ;;
620  ia64*-*-elf*)
621    # No gdb support yet.
622    noconfigdirs="$noconfigdirs readline mmalloc libgui itcl gdb"
623    ;;
624  ia64*-**-hpux*)
625    # No gdb or ld support yet.
626    noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
627    ;;
628  i370-*-opened*)
629    ;;
630  i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
631    noconfigdirs="$noconfigdirs ${libgcj}"
632    ;;
633  i[[3456789]]86-*-linux*)
634    # The GCC port for glibc1 has no MD_FALLBACK_FRAME_STATE_FOR, so let's
635    # not build java stuff by default.
636    case "${target}" in
637      *-*-*libc1*)
638	noconfigdirs="$noconfigdirs ${libgcj}";;
639    esac
640
641    # This section makes it possible to build newlib natively on linux.
642    # If we are using a cross compiler then don't configure newlib.
643    if test x${is_cross_compiler} != xno ; then
644      noconfigdirs="$noconfigdirs target-newlib"
645    fi
646    noconfigdirs="$noconfigdirs target-libgloss"
647    # If we are not using a cross compiler, do configure newlib.
648    # Note however, that newlib will only be configured in this situation
649    # if the --with-newlib option has been given, because otherwise
650    # 'target-newlib' will appear in skipdirs.
651    ;;
652  i[[3456789]]86-*-mingw32*)
653    target_configdirs="$target_configdirs target-winsup"
654    noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
655    ;;    
656  x86_64-*-mingw*)
657    target_configdirs="$target_configdirs target-winsup"
658    noconfigdirs="$noconfigdirs expect target-libgloss target-newlib ${libgcj}"
659    ;;    
660  *-*-cygwin*)
661    target_configdirs="$target_configdirs target-libtermcap target-winsup"
662    noconfigdirs="$noconfigdirs target-gperf target-libgloss ${libgcj}"
663    # always build newlib if winsup directory is present.
664    if test -d "$srcdir/winsup/cygwin"; then
665      skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
666    elif test -d "$srcdir/newlib"; then
667      echo "Warning: winsup/cygwin is missing so newlib can't be built."
668    fi
669    ;;    
670  i[[3456789]]86-moss-msdos | i[[3456789]]86-*-moss* | \
671  i[[3456789]]86-*-uwin* | i[[3456789]]86-*-interix* )
672    ;;
673  i[[3456789]]86-*-pe)
674    noconfigdirs="$noconfigdirs target-libstdc++-v3 target-libgloss ${libgcj}"
675    ;;
676  i[[3456789]]86-*-sco3.2v5*)
677    # The linker does not yet know about weak symbols in COFF,
678    # and is not configured to handle mixed ELF and COFF.
679    noconfigdirs="$noconfigdirs ld target-libgloss ${libgcj}"
680    ;;
681  i[[3456789]]86-*-sco*)
682    noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
683    ;;
684  i[[3456789]]86-*-solaris2*)
685    noconfigdirs="$noconfigdirs target-libgloss"
686    ;;
687  i[[3456789]]86-*-sysv4*)
688    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
689    ;;
690  i[[3456789]]86-*-beos*)
691    noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
692    ;;
693  i[[3456789]]86-*-rdos*)
694    noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
695    ;;
696  m32r-*-*)
697    noconfigdirs="$noconfigdirs ${libgcj}"
698    ;;
699  m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
700    noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
701    ;;
702  m68k-*-elf*)
703    noconfigdirs="$noconfigdirs ${libgcj}"
704    ;;
705  m68k-*-coff*)
706    noconfigdirs="$noconfigdirs ${libgcj}"
707    ;;
708  mcore-*-pe*)
709  # The EPOC C++ environment does not support exceptions or rtti,
710  # and so building libstdc++-v3 tends not to always work.
711    noconfigdirs="$noconfigdirs target-libstdc++-v3"
712    ;;
713  mmix-*-*)
714    noconfigdirs="$noconfigdirs target-libffi target-boehm-gc gdb libgloss"
715    unsupported_languages="$unsupported_languages fortran java"
716    ;;
717  mn10200-*-*)
718    noconfigdirs="$noconfigdirs ${libgcj}"
719    ;;
720  mn10300-*-*)
721    noconfigdirs="$noconfigdirs ${libgcj}"
722    ;;
723  mt-*-*)
724    noconfigdirs="$noconfigdirs sim"
725    ;;
726  powerpc-*-aix*)
727    # copied from rs6000-*-* entry
728    noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
729    ;;
730  powerpc*-*-winnt* | powerpc*-*-pe* | ppc*-*-pe)
731    target_configdirs="$target_configdirs target-winsup"
732    noconfigdirs="$noconfigdirs gdb tcl tk make expect target-libgloss itcl gnuserv ${libgcj}"
733    # always build newlib.
734    skipdirs=`echo " ${skipdirs} " | sed -e 's/ target-newlib / /'`
735    ;;
736    # This is temporary until we can link against shared libraries
737  powerpcle-*-solaris*)
738    noconfigdirs="$noconfigdirs gdb sim make tcl tk expect itcl gnuserv ${libgcj}"
739    ;;
740  powerpc-*-beos*)
741    noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss ${libgcj}"
742    ;;
743  powerpc-*-eabi)
744    noconfigdirs="$noconfigdirs ${libgcj}"
745    ;;
746  powerpc-*-eabi* | powerpcle-*-eabi* | powerpc-*-rtems* )
747    ;;
748  rs6000-*-lynxos*)
749    noconfigdirs="$noconfigdirs target-newlib gprof ${libgcj}"
750    ;;
751  rs6000-*-aix*)
752    noconfigdirs="$noconfigdirs gprof target-libgloss target-libssp ${libgcj}"
753    ;;
754  rs6000-*-*)
755    noconfigdirs="$noconfigdirs gprof ${libgcj}"
756    ;;
757  m68k-apollo-*)
758    noconfigdirs="$noconfigdirs ld binutils gprof target-libgloss ${libgcj}"
759    ;;
760  mips*-*-irix5*)
761    noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
762    ;;
763  mips*-*-irix6*)
764    # Linking libjava exceeds command-line length limits on at least
765    # IRIX 6.2, but not on IRIX 6.5.
766    # Also, boehm-gc won't build on IRIX 6.5, according to Jeffrey Oldham
767    # <oldham@codesourcery.com>
768    noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
769    ;;
770  mips*-*-bsd*)
771    noconfigdirs="$noconfigdirs gprof target-libgloss ${libgcj}"
772    ;;
773  mips64*-*-linux*)
774    noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
775    ;;
776  mips*-*-linux*)
777    noconfigdirs="$noconfigdirs target-newlib target-libgloss"
778    ;;
779  mips*-*-*)
780    noconfigdirs="$noconfigdirs gprof ${libgcj}"
781    ;;
782  romp-*-*)
783    noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
784    ;;
785  sh-*-* | sh64-*-*)
786    case "${host}" in
787      i[[3456789]]86-*-vsta) ;; # don't add gprof back in
788      i[[3456789]]86-*-go32*) ;; # don't add gprof back in
789      i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
790      *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
791    esac
792    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
793    ;;
794  sparc-*-elf*)
795    noconfigdirs="$noconfigdirs ${libgcj}"
796    ;;
797  sparc64-*-elf*)
798    noconfigdirs="$noconfigdirs ${libgcj}"
799    ;;
800  sparclite-*-*)
801    noconfigdirs="$noconfigdirs ${libgcj}"
802    ;;
803  sparc-*-sunos4*)
804    noconfigdirs="$noconfigdirs ${libgcj}"
805    if test x${is_cross_compiler} != xno ; then
806           noconfigdirs="$noconfigdirs gdb target-newlib target-libgloss"
807    else
808           use_gnu_ld=no
809    fi
810    ;;
811  sparc-*-solaris2.[[0-6]] | sparc-*-solaris2.[[0-6]].*)
812    noconfigdirs="$noconfigdirs ${libgcj}"
813    ;;
814  sparc-*-solaris* | sparc64-*-solaris* | sparcv9-*-solaris*)
815    ;;
816  spu-*-*)
817    skipdirs="target-libssp"
818    ;;
819  v810-*-*)
820    noconfigdirs="$noconfigdirs bfd binutils gas gcc gdb ld target-libstdc++-v3 opcodes target-libgloss ${libgcj}"
821    ;;
822  v850-*-*)
823    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
824    ;;
825  v850e-*-*)
826    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
827    ;;
828  v850ea-*-*)
829    noconfigdirs="$noconfigdirs target-libgloss ${libgcj}"
830    ;;
831  vax-*-vms)
832    noconfigdirs="$noconfigdirs bfd binutils gdb ld target-newlib opcodes target-libgloss ${libgcj}"
833    ;;
834  vax-*-*)
835    noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
836    ;;
837  xtensa-*-*)
838    noconfigdirs="$noconfigdirs ${libgcj}"
839    ;;
840  ip2k-*-*)
841    noconfigdirs="$noconfigdirs target-libiberty target-libstdc++-v3 ${libgcj}"
842    ;;
843  *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
844    noconfigdirs="$noconfigdirs target-newlib target-libgloss"
845    ;;
846  *-*-lynxos*)
847    noconfigdirs="$noconfigdirs target-newlib target-libgloss ${libgcj}"
848    ;; 
849  *-*-*)
850    noconfigdirs="$noconfigdirs ${libgcj}"
851    ;;
852esac
853
854# If we aren't building newlib, then don't build libgloss, since libgloss
855# depends upon some newlib header files.
856case "${noconfigdirs}" in
857  *target-libgloss*) ;;
858  *target-newlib*) noconfigdirs="$noconfigdirs target-libgloss" ;;
859esac
860
861# Work in distributions that contain no compiler tools, like Autoconf.
862tentative_cc=""
863host_makefile_frag=/dev/null
864if test -d ${srcdir}/config ; then
865case "${host}" in
866  m68k-hp-hpux*)
867    # Avoid "too much defining" errors from HPUX compiler.
868    tentative_cc="cc -Wp,-H256000"
869    # If "ar" in $PATH is GNU ar, the symbol table may need rebuilding.
870    # If it's HP/UX ar, this should be harmless.
871    RANLIB="ar ts"
872    ;;
873  m68k-apollo-sysv*)
874    tentative_cc="cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DUSG"
875    ;;
876  m68k-apollo-bsd*)
877    #None of the Apollo compilers can compile gas or binutils.  The preprocessor
878    # chokes on bfd, the compiler won't let you assign integers to enums, and
879    # other problems.  Defining CC to gcc is a questionable way to say "don't use
880    # the apollo compiler" (the preferred version of GCC could be called cc,
881    # or whatever), but I'm not sure leaving CC as cc is any better...
882    #CC=cc -A ansi -A runtype,any -A systype,any -U__STDC__ -DNO_STDARG
883    # Used to have BISON=yacc.
884    tentative_cc=gcc
885    ;;
886  m88k-dg-dgux*)
887    tentative_cc="gcc -Wall -ansi -D__using_DGUX"
888    ;;
889  m88k-harris-cxux*)
890    # Under CX/UX, we want to tell the compiler to use ANSI mode.
891    tentative_cc="cc -Xa"
892    host_makefile_frag="config/mh-cxux"
893    ;;
894  m88k-motorola-sysv*)
895    ;;
896  mips*-dec-ultrix*)
897    tentative_cc="cc -Wf,-XNg1000"
898    host_makefile_frag="config/mh-decstation"
899    ;;
900  mips*-nec-sysv4*)
901    # The C compiler on NEC MIPS SVR4 needs bigger tables.
902    tentative_cc="cc -ZXNd=5000 -ZXNg=1000"
903    host_makefile_frag="config/mh-necv4"
904    ;;
905  mips*-sgi-irix4*)
906    # Tell compiler to use K&R C.  We can't compile under the SGI Ansi
907    # environment.  Also bump switch table size so that cp-parse will
908    # compile.  Bump string length limit so linker builds.
909    tentative_cc="cc -cckr -Wf,-XNg1500 -Wf,-XNk1000 -Wf,-XNh2000 -Wf,-XNl8192"
910    ;;
911  mips*-*-sysv4*)
912    host_makefile_frag="config/mh-sysv4"
913    ;;
914  mips*-*-sysv*)
915    # This is for a MIPS running RISC/os 4.52C.
916
917    # This is needed for GDB, but needs to be in the top-level make because
918    # if a library is compiled with the bsd headers and gets linked with the
919    # sysv system libraries all hell can break loose (e.g. a jmp_buf might be
920    # a different size).
921    # ptrace(2) apparently has problems in the BSD environment.  No workaround is
922    # known except to select the sysv environment.  Could we use /proc instead?
923    # These "sysv environments" and "bsd environments" often end up being a pain.
924    #
925    # This is not part of CFLAGS because perhaps not all C compilers have this
926    # option.
927    tentative_cc="cc -systype sysv"
928    ;;
929  i370-ibm-opened*)
930    tentative_cc="c89"
931    ;;
932  i[[3456789]]86-*-sysv5*)
933    host_makefile_frag="config/mh-sysv5"
934    ;;
935  i[[3456789]]86-*-dgux*)
936    tentative_cc="gcc -Wall -ansi -D__using_DGUX"
937    host_makefile_frag="config/mh-dgux386"
938    ;;
939  i[[3456789]]86-ncr-sysv4.3*)
940    # The MetaWare compiler will generate a copyright message unless you
941    # turn it off by adding the -Hnocopyr flag.
942    tentative_cc="cc -Hnocopyr"
943    ;;
944  i[[3456789]]86-ncr-sysv4*)
945    # for an NCR 3000 (i486/SVR4) system.
946    # The NCR 3000 ships with a MetaWare compiler installed as /bin/cc.
947    # This compiler not only emits obnoxious copyright messages every time
948    # you run it, but it chokes and dies on a whole bunch of GNU source
949    # files.  Default to using the AT&T compiler installed in /usr/ccs/ATT/cc.
950    tentative_cc="/usr/ccs/ATT/cc"
951    host_makefile_frag="config/mh-ncr3000"
952    ;;
953  i[[3456789]]86-*-sco3.2v5*)
954    ;;
955  i[[3456789]]86-*-sco*)
956    # The native C compiler botches some simple uses of const.  Unfortunately,
957    # it doesn't defined anything like "__sco__" for us to test for in ansidecl.h.
958    tentative_cc="cc -Dconst="
959    host_makefile_frag="config/mh-sco"
960    ;;
961  i[[3456789]]86-*-udk*)
962    host_makefile_frag="config/mh-sysv5"
963    ;;
964  i[[3456789]]86-*-solaris2*)
965    host_makefile_frag="config/mh-sysv4"
966    ;;
967  i[[3456789]]86-*-msdosdjgpp*)
968    host_makefile_frag="config/mh-djgpp"
969    ;;
970  *-cygwin*)
971    host_makefile_frag="config/mh-cygwin"
972    ;;
973  *-mingw32*)
974    ;;
975  *-mingw64*)
976    ;;
977  *-interix*)
978    host_makefile_frag="config/mh-interix"
979    ;;
980  vax-*-ultrix2*)
981    # The old BSD pcc isn't up to compiling parts of gdb so use gcc
982    tentative_cc=gcc
983    ;;
984  *-*-solaris2*)
985    host_makefile_frag="config/mh-solaris"
986    ;;
987  m68k-sun-sunos*)
988    # Sun's C compiler needs the -J flag to be able to compile cp-parse.c
989    # without overflowing the jump tables (-J says to use a 32 bit table)
990    tentative_cc="cc -J"
991    ;;
992  *-hp-hpux*)
993    tentative_cc="cc -Wp,-H256000"
994    ;;
995  *-*-hiux*)
996    tentative_cc="cc -Wp,-H256000"
997    ;;
998  rs6000-*-lynxos*)
999    # /bin/cc is less than useful for our purposes.  Always use GCC
1000    tentative_cc="/usr/cygnus/progressive/bin/gcc"
1001    host_makefile_frag="config/mh-lynxrs6k"
1002    ;;
1003  powerpc-*-darwin*)
1004    host_makefile_frag="config/mh-ppc-darwin"
1005    ;;
1006  powerpc-*-aix*)
1007    host_makefile_frag="config/mh-ppc-aix"
1008    ;;
1009  rs6000-*-aix*)
1010    host_makefile_frag="config/mh-ppc-aix"
1011    ;;
1012  *-*-lynxos*)
1013    # /bin/cc is less than useful for our purposes.  Always use GCC
1014    tentative_cc="/bin/gcc"
1015    ;;
1016  *-*-sysv4*)
1017    host_makefile_frag="config/mh-sysv4"
1018    ;;
1019  # This is placed last to prevent interfering with the cases above.
1020  i[[3456789]]86-*-*)
1021    # Build the stage2 and stage3 compilers with -fomit-frame-pointer.
1022    host_makefile_frag="config/mh-x86omitfp"
1023    ;;
1024esac
1025fi
1026
1027# If we aren't going to be using gcc, see if we can extract a definition
1028# of CC from the fragment.
1029# Actually, use the 'pre-extracted' version above.
1030if test -z "${CC}" && test "${build}" = "${host}" ; then
1031  IFS="${IFS= 	}"; save_ifs="$IFS"; IFS="${IFS}:"
1032  found=
1033  for dir in $PATH; do
1034    test -z "$dir" && dir=.
1035    if test -f $dir/gcc; then
1036      found=yes
1037      break
1038    fi
1039  done
1040  IFS="$save_ifs"
1041  if test -z "${found}" && test -n "${tentative_cc}" ; then
1042    CC=$tentative_cc
1043  fi
1044fi
1045
1046if test "${build}" != "${host}" ; then
1047  CC_FOR_BUILD=${CC_FOR_BUILD-gcc}
1048else
1049  CC_FOR_BUILD="\$(CC)"
1050fi
1051
1052AC_PROG_CC
1053AC_PROG_CXX
1054
1055# We must set the default linker to the linker used by gcc for the correct
1056# operation of libtool.  If LD is not defined and we are using gcc, try to
1057# set the LD default to the ld used by gcc.
1058if test -z "$LD"; then
1059  if test "$GCC" = yes; then
1060    case $build in
1061    *-*-mingw*)
1062      gcc_prog_ld=`$CC -print-prog-name=ld 2>&1 | tr -d '\015'` ;;
1063    *)
1064      gcc_prog_ld=`$CC -print-prog-name=ld 2>&1` ;;
1065    esac
1066    case $gcc_prog_ld in
1067    # Accept absolute paths.
1068    [[\\/]* | [A-Za-z]:[\\/]*)]
1069      LD="$gcc_prog_ld" ;;
1070    esac
1071  fi
1072fi
1073
1074ACX_PROG_GNAT
1075ACX_PROG_CMP_IGNORE_INITIAL
1076
1077# Check for GMP and MPFR
1078gmplibs="-lmpfr -lgmp"
1079gmpinc=
1080have_gmp=no
1081
1082# Specify a location for mpfr
1083# check for this first so it ends up on the link line before gmp.
1084AC_ARG_WITH(mpfr-dir, [  --with-mpfr-dir=PATH    This option has been REMOVED],
1085  AC_MSG_ERROR([The --with-mpfr-dir=PATH option has been removed.
1086Use --with-mpfr=PATH or --with-mpfr-include=PATH plus --with-mpfr-lib=PATH]))
1087
1088AC_ARG_WITH(mpfr, [  --with-mpfr=PATH        Specify prefix directory for installed MPFR package
1089                          Equivalent to --with-mpfr-include=PATH/include
1090                          plus --with-mpfr-lib=PATH/lib])
1091AC_ARG_WITH(mpfr_include, [  --with-mpfr-include=PATH
1092                          Specify directory for installed MPFR include files])
1093AC_ARG_WITH(mpfr_lib, [  --with-mpfr-lib=PATH    Specify the directory for the installed MPFR library])
1094
1095if test "x$with_mpfr" != x; then
1096  gmplibs="-L$with_mpfr/lib $gmplibs"
1097  gmpinc="-I$with_mpfr/include"
1098fi
1099if test "x$with_mpfr_include" != x; then
1100  gmpinc="-I$with_mpfr_include"
1101fi
1102if test "x$with_mpfr_lib" != x; then
1103  gmplibs="-L$with_mpfr_lib $gmplibs"
1104fi
1105if test "x$with_mpfr$with_mpfr_include$with_mpfr_lib" = x && test -d ${srcdir}/mpfr; then
1106  gmplibs='-L$$r/$(HOST_SUBDIR)/mpfr/.libs -L$$r/$(HOST_SUBDIR)/mpfr/_libs '"$gmplibs"
1107  gmpinc='-I$$r/$(HOST_SUBDIR)/mpfr -I$$s/mpfr '"$gmpinc"
1108  # Do not test the mpfr version.  Assume that it is sufficient, since
1109  # it is in the source tree, and the library has not been built yet
1110  # but it would be included on the link line in the version check below
1111  # hence making the test fail.
1112  have_gmp=yes
1113fi
1114
1115# Specify a location for gmp
1116AC_ARG_WITH(gmp-dir, [  --with-gmp-dir=PATH     This option has been REMOVED],
1117  AC_MSG_ERROR([The --with-gmp-dir=PATH option has been removed.
1118Use --with-gmp=PATH or --with-gmp-include=PATH plus --with-gmp-lib=PATH]))
1119
1120AC_ARG_WITH(gmp, [  --with-gmp=PATH         Specify prefix directory for the installed GMP package
1121                          Equivalent to --with-gmp-include=PATH/include
1122                          plus --with-gmp-lib=PATH/lib])
1123AC_ARG_WITH(gmp_include, [  --with-gmp-include=PATH Specify directory for installed GMP include files])
1124AC_ARG_WITH(gmp_lib, [  --with-gmp-lib=PATH     Specify the directory for the installed GMP library])
1125
1126
1127if test "x$with_gmp" != x; then
1128  gmplibs="-L$with_gmp/lib $gmplibs"
1129  gmpinc="-I$with_gmp/include $gmpinc"
1130fi
1131if test "x$with_gmp_include" != x; then
1132  gmpinc="-I$with_gmp_include $gmpinc"
1133fi
1134if test "x$with_gmp_lib" != x; then
1135  gmplibs="-L$with_gmp_lib $gmplibs"
1136fi
1137if test "x$with_gmp$with_gmp_include$with_gmp_lib" = x && test -d ${srcdir}/gmp; then
1138  gmplibs='-L$$r/$(HOST_SUBDIR)/gmp/.libs -L$$r/$(HOST_SUBDIR)/gmp/_libs '"$gmplibs"
1139  gmpinc='-I$$r/$(HOST_SUBDIR)/gmp -I$$s/gmp '"$gmpinc"
1140  # Do not test the gmp version.  Assume that it is sufficient, since
1141  # it is in the source tree, and the library has not been built yet
1142  # but it would be included on the link line in the version check below
1143  # hence making the test fail.
1144  have_gmp=yes
1145fi
1146
1147if test -d ${srcdir}/gcc && test "x$have_gmp" = xno; then
1148  have_gmp=yes
1149  saved_CFLAGS="$CFLAGS"
1150  CFLAGS="$CFLAGS $gmpinc"
1151  # Check GMP actually works
1152  AC_MSG_CHECKING([for correct version of gmp.h])
1153  AC_TRY_COMPILE([#include "gmp.h"],[
1154  #if __GNU_MP_VERSION < 4 || (__GNU_MP_VERSION == 4 && __GNU_MP_VERSION_MINOR < 1)
1155  choke me
1156  #endif
1157  ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([no]); have_gmp=no])
1158
1159  if test x"$have_gmp" = xyes; then
1160    saved_LIBS="$LIBS"
1161    LIBS="$LIBS $gmplibs"
1162    dnl MPFR 2.2.0 is acceptable but buggy, MPFR 2.2.1 is better.
1163    AC_MSG_CHECKING([for correct version of mpfr.h])
1164    AC_TRY_LINK([#include <gmp.h>
1165    #include <mpfr.h>],[
1166    #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,0)
1167    choke me
1168    #endif
1169    mpfr_t n;
1170    mpfr_t x;
1171    int t;
1172    mpfr_init (n);
1173    mpfr_init (x);
1174    mpfr_atan2 (n, n, x, GMP_RNDN);
1175    mpfr_erfc (n, x, GMP_RNDN);
1176    mpfr_subnormalize (x, t, GMP_RNDN);
1177    ], [AC_TRY_LINK([#include <gmp.h>
1178    #include <mpfr.h>],[
1179    #if MPFR_VERSION < MPFR_VERSION_NUM(2,2,1)
1180    choke me
1181    #endif
1182    mpfr_t n; mpfr_init(n);
1183    ], [AC_MSG_RESULT([yes])], [AC_MSG_RESULT([buggy but acceptable])])],
1184     [AC_MSG_RESULT([no]); have_gmp=no])
1185      LIBS="$saved_LIBS"
1186  fi
1187  CFLAGS="$saved_CFLAGS"
1188
1189  if test x$have_gmp != xyes; then
1190    AC_MSG_ERROR([Building GCC requires GMP 4.1+ and MPFR 2.2.1+.
1191Try the --with-gmp and/or --with-mpfr options to specify their locations.
1192Copies of these libraries' source code can be found at their respective
1193hosting sites as well as at ftp://gcc.gnu.org/pub/gcc/infrastructure/.
1194See also http://gcc.gnu.org/install/prerequisites.html for additional info.
1195If you obtained GMP and/or MPFR from a vendor distribution package, make
1196sure that you have installed both the libraries and the header files.
1197They may be located in separate packages.])
1198  fi
1199fi
1200
1201# Flags needed for both GMP and/or MPFR
1202AC_SUBST(gmplibs)
1203AC_SUBST(gmpinc)
1204
1205# By default, C is the only stage 1 language.
1206stage1_languages=,c,
1207
1208# Figure out what language subdirectories are present.
1209# Look if the user specified --enable-languages="..."; if not, use
1210# the environment variable $LANGUAGES if defined. $LANGUAGES might
1211# go away some day.
1212# NB:  embedded tabs in this IF block -- do not untabify
1213if test -d ${srcdir}/gcc; then
1214  if test x"${enable_languages+set}" != xset; then
1215    if test x"${LANGUAGES+set}" = xset; then
1216      enable_languages="${LANGUAGES}"
1217        echo configure.in: warning: setting LANGUAGES is deprecated, use --enable-languages instead 1>&2
1218    else
1219      enable_languages=all
1220    fi
1221  else
1222    if test x"${enable_languages}" = x ||
1223       test x"${enable_languages}" = xyes;
1224       then
1225      echo configure.in: --enable-languages needs at least one language argument 1>&2
1226      exit 1
1227    fi
1228  fi
1229  enable_languages=`echo "${enable_languages}" | sed -e 's/[[ 	,]][[ 	,]]*/,/g' -e 's/,$//'`
1230
1231  # 'f95' is the old name for the 'fortran' language. We issue a warning
1232  # and make the substitution.
1233  case ,${enable_languages}, in
1234    *,f95,*)
1235      echo configure.in: warning: 'f95' as language name is deprecated, use 'fortran' instead 1>&2
1236      enable_languages=`echo "${enable_languages}" | sed -e 's/f95/fortran/g'`
1237      ;;
1238  esac
1239
1240  # First scan to see if an enabled language requires some other language.
1241  # We assume that a given config-lang.in will list all the language
1242  # front ends it requires, even if some are required indirectly.
1243  for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1244    case ${lang_frag} in
1245      ..) ;;
1246      # The odd quoting in the next line works around
1247      # an apparent bug in bash 1.12 on linux.
1248      ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1249      *)
1250        # From the config-lang.in, get $language, $lang_requires
1251        language=
1252        lang_requires=
1253        . ${lang_frag}
1254        for other in ${lang_requires} ; do
1255          case ,${enable_languages}, in
1256	    *,$other,*) ;;
1257	    *,all,*) ;;
1258	    *,$language,*)
1259	      echo " \`$other' language required by \`$language'; enabling" 1>&2
1260	      enable_languages="${enable_languages},${other}"
1261	      ;;
1262	  esac
1263        done
1264        ;;
1265    esac
1266  done
1267
1268  new_enable_languages=,c,
1269  missing_languages=`echo ",$enable_languages," | sed -e s/,all,/,/ -e s/,c,/,/ `
1270  potential_languages=,c,
1271
1272  for lang_frag in ${srcdir}/gcc/*/config-lang.in .. ; do
1273    case ${lang_frag} in
1274      ..) ;;
1275      # The odd quoting in the next line works around
1276      # an apparent bug in bash 1.12 on linux.
1277      ${srcdir}/gcc/[[*]]/config-lang.in) ;;
1278      *)
1279        # From the config-lang.in, get $language, $target_libs, 
1280        # $lang_dirs, $boot_language, and $build_by_default
1281        language=
1282        target_libs=
1283        lang_dirs=
1284        subdir_requires=
1285        boot_language=no
1286        build_by_default=yes
1287        . ${lang_frag}
1288        if test x${language} = x; then
1289          echo "${lang_frag} doesn't set \$language." 1>&2
1290          exit 1
1291        fi
1292
1293        case ,${enable_languages}, in
1294          *,${language},*)
1295            # Language was explicitly selected; include it.
1296            add_this_lang=yes
1297            ;;
1298          *,all,*)
1299            # 'all' was selected, select it if it is a default language
1300            add_this_lang=${build_by_default}
1301            ;;
1302          *)
1303            add_this_lang=no
1304            ;;
1305        esac
1306
1307        # Disable languages that need other directories if these aren't available.
1308	for i in $subdir_requires; do
1309	  test -f "$srcdir/gcc/$i/config-lang.in" && continue
1310	  case ,${enable_languages}, in
1311            *,${language},*)
1312              # Specifically requested language; tell them.
1313              AC_MSG_ERROR([The gcc/$i directory contains parts of $language but is missing])
1314              ;;
1315            *)
1316              # Silently disable.
1317              add_this_lang=unsupported
1318              ;;
1319          esac
1320	done
1321
1322        # Disable Ada if no preexisting GNAT is available.
1323        case ,${enable_languages},:${language}:${have_gnat} in
1324          *,${language},*:ada:no)
1325            # Specifically requested language; tell them.
1326            AC_MSG_ERROR([GNAT is required to build $language])
1327            ;;
1328          *:ada:no)
1329            # Silently disable.
1330            add_this_lang=unsupported
1331            ;;
1332        esac
1333
1334	# Disable a language that is unsupported by the target.
1335	case " $unsupported_languages " in
1336	  *" $language "*)
1337	    add_this_lang=unsupported
1338	    ;;
1339	esac
1340
1341	case $add_this_lang in
1342	  unsupported)
1343            # Remove language-dependent dirs.
1344            eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1345	    ;;
1346	  no)
1347            # Remove language-dependent dirs; still show language as supported.
1348            eval noconfigdirs='"$noconfigdirs "'\"$target_libs $lang_dirs\"
1349            potential_languages="${potential_languages}${language},"
1350	    ;;
1351          yes)
1352	    new_enable_languages="${new_enable_languages}${language},"
1353            potential_languages="${potential_languages}${language},"
1354	    missing_languages=`echo "$missing_languages" | sed "s/,$language,/,/"`
1355	    case ${boot_language} in
1356	      yes)
1357		# Add to (comma-separated) list of stage 1 languages.
1358		stage1_languages="${stage1_languages}${language},"
1359		;;
1360	    esac
1361	    ;;
1362        esac
1363        ;;
1364    esac
1365  done
1366
1367  AC_ARG_ENABLE(stage1-languages,
1368[  --enable-stage1-languages[=all]   choose additional languages to build during
1369                          stage1.  Mostly useful for compiler development.],
1370  [case ,${enable_stage1_languages}, in
1371    ,no,|,,)
1372      # Set it to something that will have no effect in the loop below
1373      enable_stage1_languages=c ;;
1374    ,yes,)
1375      enable_stage1_languages=`echo $new_enable_languages | \
1376	sed -e "s/^,//" -e "s/,$//" ` ;;
1377    *,all,*)
1378      enable_stage1_languages=`echo ,$enable_stage1_languages, | \
1379	sed -e "s/,all,/$new_enable_languages/" -e "s/^,//" -e "s/,$//" ` ;;
1380  esac
1381
1382  # Add "good" languages from enable_stage1_languages to stage1_languages,
1383  # while "bad" languages go in missing_languages.  Leave no duplicates.
1384  for i in `echo $enable_stage1_languages | sed 's/,/ /g' `; do
1385    case $potential_languages in
1386      *,$i,*)
1387        case $stage1_languages in
1388          *,$i,*) ;;
1389          *) stage1_languages="$stage1_languages$i," ;;
1390        esac ;;
1391      *)
1392        case $missing_languages in
1393          *,$i,*) ;;
1394          *) missing_languages="$missing_languages$i," ;;
1395        esac ;;
1396     esac
1397  done])
1398
1399  # Remove leading/trailing commas that were added for simplicity
1400  potential_languages=`echo "$potential_languages" | sed -e "s/^,//" -e "s/,$//"`
1401  missing_languages=`echo "$missing_languages" | sed -e "s/^,//" -e "s/,$//"`
1402  stage1_languages=`echo "$stage1_languages" | sed -e "s/^,//" -e "s/,$//"`
1403  new_enable_languages=`echo "$new_enable_languages" | sed -e "s/^,//" -e "s/,$//"`
1404
1405  if test "x$missing_languages" != x; then
1406    AC_MSG_ERROR([
1407The following requested languages could not be built: ${missing_languages}
1408Supported languages are: ${potential_languages}])
1409  fi
1410  if test "x$new_enable_languages" != "x$enable_languages"; then
1411    echo The following languages will be built: ${new_enable_languages}
1412    enable_languages="$new_enable_languages"
1413  fi
1414
1415  AC_SUBST(stage1_languages)
1416  ac_configure_args=`echo " $ac_configure_args" | sed -e "s/ '--enable-languages=[[^ ]]*'//g" -e "s/$/ '--enable-languages="$enable_languages"'/" `
1417fi
1418
1419# Handle --disable-<component> generically.
1420for dir in $configdirs $build_configdirs $target_configdirs ; do
1421  dirname=`echo $dir | sed -e s/target-//g -e s/build-//g -e s/-/_/g`
1422  if eval test x\${enable_${dirname}} "=" xno ; then
1423    noconfigdirs="$noconfigdirs $dir"
1424  fi
1425done
1426
1427# Check for Boehm's garbage collector
1428AC_ARG_ENABLE(objc-gc,
1429[  --enable-objc-gc       enable the use of Boehm's garbage collector with
1430                          the GNU Objective-C runtime.],
1431[case ,${enable_languages},:${enable_objc_gc}:${noconfigdirs} in
1432  *,objc,*:*:yes:*target-boehm-gc*)
1433    AC_MSG_ERROR([Boehm's garbage collector was requested yet not supported in this configuration])
1434    ;;
1435esac])
1436
1437# Make sure we only build Boehm's garbage collector if required.
1438case ,${enable_languages},:${enable_objc_gc} in
1439  *,objc,*:yes)
1440    # Keep target-boehm-gc if requested for Objective-C.
1441    ;;
1442  *)
1443    # Otherwise remove target-boehm-gc depending on target-libjava.
1444    if echo " ${noconfigdirs} " | grep "target-libjava" >/dev/null 2>&1; then
1445      noconfigdirs="$noconfigdirs target-boehm-gc"
1446    fi
1447    ;;
1448esac
1449
1450# Remove the entries in $skipdirs and $noconfigdirs from $configdirs,
1451# $build_configdirs and $target_configdirs.
1452# If we have the source for $noconfigdirs entries, add them to $notsupp.
1453
1454notsupp=""
1455for dir in . $skipdirs $noconfigdirs ; do
1456  dirname=`echo $dir | sed -e s/target-//g -e s/build-//g`
1457  if test $dir != .  && echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1458    configdirs=`echo " ${configdirs} " | sed -e "s/ ${dir} / /"`
1459    if test -r $srcdir/$dirname/configure ; then
1460      if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1461	true
1462      else
1463	notsupp="$notsupp $dir"
1464      fi
1465    fi
1466  fi
1467  if test $dir != .  && echo " ${build_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1468    build_configdirs=`echo " ${build_configdirs} " | sed -e "s/ ${dir} / /"`
1469    if test -r $srcdir/$dirname/configure ; then
1470      if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1471	true
1472      else
1473	notsupp="$notsupp $dir"
1474      fi
1475    fi
1476  fi
1477  if test $dir != . && echo " ${target_configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1478    target_configdirs=`echo " ${target_configdirs} " | sed -e "s/ ${dir} / /"`
1479    if test -r $srcdir/$dirname/configure ; then
1480      if echo " ${skipdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1481	true
1482      else
1483	notsupp="$notsupp $dir"
1484      fi
1485    fi
1486  fi
1487done
1488
1489# Sometimes the tools are distributed with libiberty but with no other
1490# libraries.  In that case, we don't want to build target-libiberty.
1491# Don't let libgcc imply libiberty either.
1492if test -n "${target_configdirs}" ; then
1493  libgcc=
1494  others=
1495  for i in `echo ${target_configdirs} | sed -e s/target-//g` ; do
1496    if test "$i" = "libgcc"; then
1497      libgcc=target-libgcc
1498    elif test "$i" != "libiberty" ; then
1499      if test -r $srcdir/$i/configure ; then
1500	others=yes;
1501	break;
1502      fi
1503    fi
1504  done
1505  if test -z "${others}" ; then
1506    target_configdirs=$libgcc
1507  fi
1508fi
1509
1510# Quietly strip out all directories which aren't configurable in this tree.
1511# This relies on all configurable subdirectories being autoconfiscated, which
1512# is now the case.
1513build_configdirs_all="$build_configdirs"
1514build_configdirs=
1515for i in ${build_configdirs_all} ; do
1516  j=`echo $i | sed -e s/build-//g` 
1517  if test -f ${srcdir}/$j/configure ; then
1518    build_configdirs="${build_configdirs} $i"
1519  fi
1520done
1521
1522configdirs_all="$configdirs"
1523configdirs=
1524for i in ${configdirs_all} ; do
1525  if test -f ${srcdir}/$i/configure ; then
1526    configdirs="${configdirs} $i"
1527  fi
1528done
1529
1530target_configdirs_all="$target_configdirs"
1531target_configdirs=
1532for i in ${target_configdirs_all} ; do
1533  j=`echo $i | sed -e s/target-//g` 
1534  if test -f ${srcdir}/$j/configure ; then
1535    target_configdirs="${target_configdirs} $i"
1536  fi
1537done
1538
1539# Produce a warning message for the subdirs we can't configure.
1540# This isn't especially interesting in the Cygnus tree, but in the individual
1541# FSF releases, it's important to let people know when their machine isn't
1542# supported by the one or two programs in a package.
1543
1544if test -n "${notsupp}" && test -z "${norecursion}" ; then
1545  # If $appdirs is non-empty, at least one of those directories must still
1546  # be configured, or we error out.  (E.g., if the gas release supports a
1547  # specified target in some subdirs but not the gas subdir, we shouldn't
1548  # pretend that all is well.)
1549  if test -n "$appdirs" ; then
1550    for dir in $appdirs ; do
1551      if test -r $dir/Makefile.in ; then
1552	if echo " ${configdirs} " | grep " ${dir} " >/dev/null 2>&1; then
1553	  appdirs=""
1554	  break
1555	fi
1556	if echo " ${target_configdirs} " | grep " target-${dir} " >/dev/null 2>&1; then
1557	  appdirs=""
1558	  break
1559	fi
1560      fi
1561    done
1562    if test -n "$appdirs" ; then
1563      echo "*** This configuration is not supported by this package." 1>&2
1564      exit 1
1565    fi
1566  fi
1567  # Okay, some application will build, or we don't care to check.  Still
1568  # notify of subdirs not getting built.
1569  echo "*** This configuration is not supported in the following subdirectories:" 1>&2
1570  echo "    ${notsupp}" 1>&2
1571  echo "    (Any other directories should still work fine.)" 1>&2
1572fi
1573
1574case "$host" in
1575  *msdosdjgpp*)
1576    enable_gdbtk=no ;;
1577esac
1578
1579# To find our prefix, in gcc_cv_tool_prefix.
1580ACX_TOOL_DIRS
1581
1582copy_dirs=
1583
1584AC_ARG_WITH([build-sysroot], 
1585  [  --with-build-sysroot=sysroot
1586                          use sysroot as the system root during the build],
1587  [if test x"$withval" != x ; then
1588     SYSROOT_CFLAGS_FOR_TARGET="--sysroot=$withval"
1589   fi],
1590  [SYSROOT_CFLAGS_FOR_TARGET=])
1591AC_SUBST(SYSROOT_CFLAGS_FOR_TARGET)
1592
1593# Handle --with-headers=XXX.  If the value is not "yes", the contents of
1594# the named directory are copied to $(tooldir)/sys-include.
1595if test x"${with_headers}" != x && test x"${with_headers}" != xno ; then
1596  if test x${is_cross_compiler} = xno ; then
1597    echo 1>&2 '***' --with-headers is only supported when cross compiling
1598    exit 1
1599  fi
1600  if test x"${with_headers}" != xyes ; then
1601    x=${gcc_cv_tool_prefix}
1602    copy_dirs="${copy_dirs} ${with_headers} $x/${target_noncanonical}/sys-include"
1603  fi
1604fi
1605
1606# Handle --with-libs=XXX.  If the value is not "yes", the contents of
1607# the name directories are copied to $(tooldir)/lib.  Multiple directories
1608# are permitted.
1609if test x"${with_libs}" != x && test x"${with_libs}" != xno ; then
1610  if test x${is_cross_compiler} = xno ; then
1611    echo 1>&2 '***' --with-libs is only supported when cross compiling
1612    exit 1
1613  fi
1614  if test x"${with_libs}" != xyes ; then
1615    # Copy the libraries in reverse order, so that files in the first named
1616    # library override files in subsequent libraries.
1617    x=${gcc_cv_tool_prefix}
1618    for l in ${with_libs}; do
1619      copy_dirs="$l $x/${target_noncanonical}/lib ${copy_dirs}"
1620    done
1621  fi
1622fi
1623
1624# Set with_gnu_as and with_gnu_ld as appropriate.
1625#
1626# This is done by determining whether or not the appropriate directory
1627# is available, and by checking whether or not specific configurations
1628# have requested that this magic not happen.
1629# 
1630# The command line options always override the explicit settings in 
1631# configure.in, and the settings in configure.in override this magic.
1632#
1633# If the default for a toolchain is to use GNU as and ld, and you don't 
1634# want to do that, then you should use the --without-gnu-as and
1635# --without-gnu-ld options for the configure script.
1636
1637if test x${use_gnu_as} = x &&
1638   echo " ${configdirs} " | grep " gas " > /dev/null 2>&1 ; then
1639  with_gnu_as=yes
1640  extra_host_args="$extra_host_args --with-gnu-as"
1641fi
1642
1643if test x${use_gnu_ld} = x &&
1644   echo " ${configdirs} " | grep " ld " > /dev/null 2>&1 ; then
1645  with_gnu_ld=yes
1646  extra_host_args="$extra_host_args --with-gnu-ld"
1647fi
1648
1649# If using newlib, add --with-newlib to the extra_host_args so that gcc/configure
1650# can detect this case.
1651
1652if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " target-newlib " > /dev/null 2>&1 ; then
1653  with_newlib=yes
1654  extra_host_args="$extra_host_args --with-newlib"
1655fi
1656
1657# Handle ${copy_dirs}
1658set fnord ${copy_dirs}
1659shift
1660while test $# != 0 ; do
1661  if test -f $2/COPIED && test x"`cat $2/COPIED`" = x"$1" ; then
1662    :
1663  else
1664    echo Copying $1 to $2
1665
1666    # Use the install script to create the directory and all required
1667    # parent directories.
1668    if test -d $2 ; then
1669      :
1670    else
1671      echo >config.temp
1672      ${srcdir}/install-sh -c -m 644 config.temp $2/COPIED
1673    fi
1674
1675    # Copy the directory, assuming we have tar.
1676    # FIXME: Should we use B in the second tar?  Not all systems support it.
1677    (cd $1; tar -cf - .) | (cd $2; tar -xpf -)
1678
1679    # It is the responsibility of the user to correctly adjust all
1680    # symlinks.  If somebody can figure out how to handle them correctly
1681    # here, feel free to add the code.
1682
1683    echo $1 > $2/COPIED
1684  fi
1685  shift; shift
1686done
1687
1688# Determine a target-dependent exec_prefix that the installed
1689# gcc will search in.  Keep this list sorted by triplet, with
1690# the *-*-osname triplets last.
1691md_exec_prefix=
1692case "${target}" in
1693  alpha*-*-*vms*)
1694    md_exec_prefix=/gnu/lib/gcc-lib
1695    ;;
1696  i[34567]86-pc-msdosdjgpp*)
1697    md_exec_prefix=/dev/env/DJDIR/bin
1698    ;;
1699  i[34567]86-*-sco3.2v5*)
1700    if test $with_gnu_as = yes; then
1701      md_exec_prefix=/usr/gnu/bin
1702    else
1703      md_exec_prefix=/usr/ccs/bin/elf
1704    fi
1705    ;;
1706
1707  mn10300-*-* | \
1708  powerpc-*-chorusos* | \
1709  powerpc*-*-eabi* | \
1710  powerpc*-*-sysv* | \
1711  powerpc*-*-kaos* | \
1712  s390x-ibm-tpf*)
1713    md_exec_prefix=/usr/ccs/bin
1714    ;;
1715  sparc64-*-elf*)
1716    ;;
1717  v850*-*-*)
1718    md_exec_prefix=/usr/ccs/bin
1719    ;;
1720  xtensa-*-elf*)
1721    ;;
1722
1723  *-*-beos* | \
1724  *-*-elf* | \
1725  *-*-hpux* | \
1726  *-*-netware* | \
1727  *-*-nto-qnx* | \
1728  *-*-rtems* | \
1729  *-*-solaris2* | \
1730  *-*-sysv[45]* | \
1731  *-*-vxworks* | \
1732  *-wrs-windiss)
1733    md_exec_prefix=/usr/ccs/bin
1734    ;;
1735esac
1736
1737extra_arflags_for_target=
1738extra_nmflags_for_target=
1739extra_ranlibflags_for_target=
1740target_makefile_frag=/dev/null
1741case "${target}" in
1742  mep*-*-*)
1743    target_makefile_frag="config/mt-mep"
1744    ;;
1745  spu-*-*)
1746    target_makefile_frag="config/mt-spu"
1747    ;;
1748  *-*-netware*)
1749    target_makefile_frag="config/mt-netware"
1750    ;;
1751  *-*-linux* | *-*-gnu* | *-*-k*bsd*-gnu)
1752    target_makefile_frag="config/mt-gnu"
1753    ;;
1754  *-*-aix4.[[3456789]]* | *-*-aix[[56789]].*)
1755    # nm and ar from AIX 4.3 and above require -X32_64 flag to all ar and nm 
1756    # commands to handle both 32-bit and 64-bit objects.  These flags are
1757    # harmless if we're using GNU nm or ar.
1758    extra_arflags_for_target=" -X32_64"
1759    extra_nmflags_for_target=" -B -X32_64"
1760    ;;
1761  *-*-darwin*)
1762    # ranlib from Darwin requires the -c flag to look at common symbols.
1763    extra_ranlibflags_for_target=" -c"
1764    ;;
1765  mips*-*-pe | sh*-*-pe | *arm-wince-pe)
1766    target_makefile_frag="config/mt-wince"
1767    ;;
1768esac
1769
1770alphaieee_frag=/dev/null
1771case $target in
1772  alpha*-*-*)
1773    # This just makes sure to use the -mieee option to build target libs.
1774    # This should probably be set individually by each library.
1775    alphaieee_frag="config/mt-alphaieee"
1776    ;;
1777esac
1778
1779# If --enable-target-optspace always use -Os instead of -O2 to build
1780# the target libraries, similarly if it is not specified, use -Os
1781# on selected platforms.
1782ospace_frag=/dev/null
1783case "${enable_target_optspace}:${target}" in
1784  yes:*)
1785    ospace_frag="config/mt-ospace"
1786    ;;
1787  :d30v-*)
1788    ospace_frag="config/mt-d30v"
1789    ;;
1790  :m32r-* | :d10v-* | :fr30-*)
1791    ospace_frag="config/mt-ospace"
1792    ;;
1793  no:* | :*)
1794    ;;
1795  *)
1796    echo "*** bad value \"${enable_target_optspace}\" for --enable-target-optspace flag; ignored" 1>&2
1797    ;;
1798esac
1799
1800# Default to using --with-stabs for certain targets.
1801if test x${with_stabs} = x ; then
1802  case "${target}" in
1803  mips*-*-irix[[56]]*)
1804    ;;
1805  mips*-*-* | alpha*-*-osf*)
1806    with_stabs=yes;
1807    extra_host_args="${extra_host_args} --with-stabs"
1808    ;;
1809  esac
1810fi
1811
1812# hpux11 in 64bit mode has libraries in a weird place.  Arrange to find
1813# them automatically.
1814case "${host}" in
1815  hppa*64*-*-hpux11*)	
1816    extra_host_args="$extra_host_args -x-libraries=/usr/lib/pa20_64 -x-includes=/usr/X11R6/include"
1817    ;;
1818esac
1819
1820# Some systems (e.g., one of the i386-aix systems the gas testers are
1821# using) don't handle "\$" correctly, so don't use it here.
1822tooldir='${exec_prefix}'/${target_noncanonical}
1823build_tooldir=${tooldir}
1824
1825# Create a .gdbinit file which runs the one in srcdir
1826# and tells GDB to look there for source files.
1827
1828if test -r ${srcdir}/.gdbinit ; then
1829  case ${srcdir} in
1830    .) ;;
1831    *) cat > ./.gdbinit <<EOF
1832# ${NO_EDIT}
1833dir ${srcdir}
1834dir .
1835source ${srcdir}/.gdbinit
1836EOF
1837    ;;
1838  esac
1839fi
1840
1841# Make sure that the compiler is able to generate an executable.  If it
1842# can't, we are probably in trouble.  We don't care whether we can run the
1843# executable--we might be using a cross compiler--we only care whether it
1844# can be created.  At this point the main configure script has set CC.
1845we_are_ok=no
1846echo "int main () { return 0; }" > conftest.c
1847${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c
1848if test $? = 0 ; then
1849  if test -s conftest || test -s conftest.exe ; then
1850    we_are_ok=yes
1851  fi
1852fi 
1853case $we_are_ok in
1854  no)
1855    echo 1>&2 "*** The command '${CC} -o conftest ${CFLAGS} ${CPPFLAGS} ${LDFLAGS} conftest.c' failed."
1856    echo 1>&2 "*** You must set the environment variable CC to a working compiler."
1857    rm -f conftest*
1858    exit 1
1859    ;;
1860esac
1861rm -f conftest*
1862
1863# The Solaris /usr/ucb/cc compiler does not appear to work.
1864case "${host}" in
1865  sparc-sun-solaris2*)
1866      CCBASE="`echo ${CC-cc} | sed 's/ .*$//'`"
1867      if test "`type $CCBASE | sed 's/^[[^/]]*//'`" = "/usr/ucb/cc" ; then
1868          could_use=
1869          test -d /opt/SUNWspro/bin && could_use="/opt/SUNWspro/bin"
1870          if test -d /opt/cygnus/bin ; then
1871              if test "$could_use" = "" ; then
1872                  could_use="/opt/cygnus/bin"
1873              else
1874                  could_use="$could_use or /opt/cygnus/bin"
1875              fi
1876          fi
1877        if test "$could_use" = "" ; then
1878            echo "Warning: compilation may fail because you're using"
1879            echo "/usr/ucb/cc.  You should change your PATH or CC "
1880            echo "variable and rerun configure."
1881        else
1882            echo "Warning: compilation may fail because you're using"
1883            echo "/usr/ucb/cc, when you should use the C compiler from"
1884            echo "$could_use.  You should change your"
1885            echo "PATH or CC variable and rerun configure."
1886        fi
1887      fi
1888  ;;
1889esac
1890
1891case "${host}" in
1892  *-*-hpux*) RPATH_ENVVAR=SHLIB_PATH ;;
1893  *-*-darwin* | *-*-rhapsody* ) RPATH_ENVVAR=DYLD_LIBRARY_PATH ;;
1894  *) RPATH_ENVVAR=LD_LIBRARY_PATH ;;
1895esac
1896
1897# Record target_configdirs and the configure arguments for target and
1898# build configuration in Makefile.
1899target_configdirs=`echo "${target_configdirs}" | sed -e 's/target-//g'`
1900build_configdirs=`echo "${build_configdirs}" | sed -e 's/build-//g'`
1901
1902# Determine whether gdb needs tk/tcl or not.
1903# Use 'maybe' since enable_gdbtk might be true even if tk isn't available
1904# and in that case we want gdb to be built without tk.  Ugh!
1905# In fact I believe gdb is the *only* package directly dependent on tk,
1906# so we should be able to put the 'maybe's in unconditionally and
1907# leave out the maybe dependencies when enable_gdbtk is false.  I'm not
1908# 100% sure that that's safe though.
1909
1910gdb_tk="maybe-all-tcl maybe-all-tk maybe-all-itcl maybe-all-libgui"
1911case "$enable_gdbtk" in
1912  no)
1913    GDB_TK="" ;;
1914  yes)
1915    GDB_TK="${gdb_tk}" ;;
1916  *)
1917    # Only add the dependency on gdbtk when GDBtk is part of the gdb
1918    # distro.  Eventually someone will fix this and move Insight, nee
1919    # gdbtk to a separate directory.
1920    if test -d ${srcdir}/gdb/gdbtk ; then
1921      GDB_TK="${gdb_tk}"
1922    else
1923      GDB_TK=""
1924    fi
1925    ;;
1926esac
1927CONFIGURE_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-configure-/g`
1928INSTALL_GDB_TK=`echo ${GDB_TK} | sed s/-all-/-install-/g`
1929
1930# Strip out unwanted targets.
1931
1932# While at that, we remove Makefiles if we were started for recursive
1933# configuration, so that the top-level Makefile reconfigures them,
1934# like we used to do when configure itself was recursive.
1935
1936# Loop over modules.  $extrasub must be used with care, limiting as
1937# much as possible the usage of range addresses.  That's because autoconf
1938# splits the sed script to overcome limits in the number of commands,
1939# and relying on carefully-timed sed passes may turn out to be very hard
1940# to maintain later.  In this particular case, you just have to be careful
1941# not to nest @if/@endif pairs, because configure will not warn you at all.
1942
1943AC_ARG_ENABLE([bootstrap],
1944[  --enable-bootstrap           Enable bootstrapping [yes if native build]],,
1945enable_bootstrap=default)
1946
1947# Issue errors and warnings for invalid/strange bootstrap combinations.
1948case "$configdirs" in
1949  *gcc*) have_compiler=yes ;;
1950  *) have_compiler=no ;;
1951esac
1952
1953case "$have_compiler:$host:$target:$enable_bootstrap" in
1954  *:*:*:no) ;;
1955
1956  # Default behavior.  Enable bootstrap if we have a compiler
1957  # and we are in a native configuration.
1958  yes:$build:$build:default)
1959    enable_bootstrap=yes ;;
1960
1961  *:*:*:default)
1962    enable_bootstrap=no ;;
1963
1964  # We have a compiler and we are in a native configuration, bootstrap is ok
1965  yes:$build:$build:yes)
1966    ;;
1967
1968  # Other configurations, but we have a compiler.  Assume the user knows
1969  # what he's doing.
1970  yes:*:*:yes)
1971    AC_MSG_WARN([trying to bootstrap a cross compiler])
1972    ;;
1973
1974  # No compiler: if they passed --enable-bootstrap explicitly, fail
1975  no:*:*:yes)
1976    AC_MSG_ERROR([cannot bootstrap without a compiler]) ;;
1977
1978  # Fail if wrong command line
1979  *)
1980    AC_MSG_ERROR([invalid option for --enable-bootstrap])
1981    ;;
1982esac
1983
1984# Adjust the toplevel makefile according to whether bootstrap was selected.
1985case "$enable_bootstrap" in
1986  yes)
1987    bootstrap_suffix=bootstrap ;;
1988  no)
1989    bootstrap_suffix=no-bootstrap ;;
1990esac
1991
1992for module in ${build_configdirs} ; do
1993  if test -z "${no_recursion}" \
1994     && test -f ${build_subdir}/${module}/Makefile; then
1995    echo 1>&2 "*** removing ${build_subdir}/${module}/Makefile to force reconfigure"
1996    rm -f ${build_subdir}/${module}/Makefile
1997  fi
1998  extrasub="$extrasub
1999/^@if build-$module\$/d
2000/^@endif build-$module\$/d
2001/^@if build-$module-$bootstrap_suffix\$/d
2002/^@endif build-$module-$bootstrap_suffix\$/d"
2003done
2004for module in ${configdirs} ; do
2005  if test -z "${no_recursion}"; then
2006    for file in stage*-${module}/Makefile prev-${module}/Makefile ${module}/Makefile; do
2007      if test -f ${file}; then
2008	echo 1>&2 "*** removing ${file} to force reconfigure"
2009	rm -f ${file}
2010      fi
2011    done
2012  fi
2013  extrasub="$extrasub
2014/^@if $module\$/d
2015/^@endif $module\$/d
2016/^@if $module-$bootstrap_suffix\$/d
2017/^@endif $module-$bootstrap_suffix\$/d"
2018done
2019for module in ${target_configdirs} ; do
2020  if test -z "${no_recursion}" \
2021     && test -f ${target_subdir}/${module}/Makefile; then
2022    echo 1>&2 "*** removing ${target_subdir}/${module}/Makefile to force reconfigure"
2023    rm -f ${target_subdir}/${module}/Makefile
2024  fi
2025  extrasub="$extrasub
2026/^@if target-$module\$/d
2027/^@endif target-$module\$/d
2028/^@if target-$module-$bootstrap_suffix\$/d
2029/^@endif target-$module-$bootstrap_suffix\$/d"
2030done
2031
2032extrasub="$extrasub
2033/^@if /,/^@endif /d"
2034
2035# Create the serialization dependencies.  This uses a temporary file.
2036
2037AC_ARG_ENABLE([serial-configure],
2038[  --enable-serial-[{host,target,build}-]configure
2039                          Force sequential configuration of
2040                          sub-packages for the host, target or build
2041			  machine, or all sub-packages])
2042
2043case ${enable_serial_configure} in
2044  yes)
2045    enable_serial_build_configure=yes
2046    enable_serial_host_configure=yes
2047    enable_serial_target_configure=yes
2048    ;;
2049esac
2050
2051# These force 'configure's to be done one at a time, to avoid problems
2052# with contention over a shared config.cache.
2053rm -f serdep.tmp
2054echo '# serdep.tmp' > serdep.tmp
2055olditem=
2056test "x${enable_serial_build_configure}" = xyes &&
2057for item in ${build_configdirs} ; do
2058  case ${olditem} in
2059    "") ;;
2060    *) echo "configure-build-${item}: configure-build-${olditem}" >> serdep.tmp ;;
2061  esac
2062  olditem=${item}
2063done
2064olditem=
2065test "x${enable_serial_host_configure}" = xyes &&
2066for item in ${configdirs} ; do
2067  case ${olditem} in
2068    "") ;;
2069    *) echo "configure-${item}: configure-${olditem}" >> serdep.tmp ;;
2070  esac
2071  olditem=${item}
2072done
2073olditem=
2074test "x${enable_serial_target_configure}" = xyes &&
2075for item in ${target_configdirs} ; do
2076  case ${olditem} in
2077    "") ;;
2078    *) echo "configure-target-${item}: configure-target-${olditem}" >> serdep.tmp ;;
2079  esac
2080  olditem=${item}
2081done
2082serialization_dependencies=serdep.tmp
2083AC_SUBST_FILE(serialization_dependencies)
2084
2085# Base args.  Strip norecursion, cache-file, srcdir, host, build,
2086# target, nonopt, and variable assignments.  These are the ones we
2087# might not want to pass down to subconfigures.  Also strip
2088# program-prefix, program-suffix, and program-transform-name, so that
2089# we can pass down a consistent program-transform-name.
2090baseargs=
2091keep_next=no
2092skip_next=no
2093eval "set -- $ac_configure_args"
2094for ac_arg
2095do
2096  if test X"$skip_next" = X"yes"; then
2097    skip_next=no
2098    continue
2099  fi
2100  if test X"$keep_next" = X"yes"; then
2101    case $ac_arg in
2102      *\'*)
2103	ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2104    esac
2105    baseargs="$baseargs '$ac_arg'"
2106    keep_next=no
2107    continue
2108  fi
2109
2110  # Handle separated arguments.  Based on the logic generated by
2111  # autoconf 2.59.
2112  case $ac_arg in
2113    *=* | --config-cache | -C | -disable-* | --disable-* \
2114      | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
2115      | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
2116      | -with-* | --with-* | -without-* | --without-* | --x)
2117      separate_arg=no
2118      ;;
2119    -*)
2120      separate_arg=yes
2121      ;;
2122    *)
2123      separate_arg=no
2124      ;;
2125  esac
2126
2127  case "$ac_arg" in
2128    --no*)
2129      continue
2130      ;;
2131    --c* | \
2132    --sr* | \
2133    --ho* | \
2134    --bu* | \
2135    --t* | \
2136    --program-* | \
2137    -cache_file* | \
2138    -srcdir* | \
2139    -host* | \
2140    -build* | \
2141    -target* | \
2142    -program-prefix* | \
2143    -program-suffix* | \
2144    -program-transform-name* )
2145      skip_next=$separate_arg
2146      continue
2147      ;;
2148    -*)
2149      # An option.  Add it.
2150      case $ac_arg in
2151	*\'*)
2152	  ac_arg=`echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
2153      esac
2154      baseargs="$baseargs '$ac_arg'"
2155      keep_next=$separate_arg
2156      ;;
2157    *)
2158      # Either a variable assignment, or a nonopt (triplet).  Don't
2159      # pass it down; let the Makefile handle this.
2160      continue
2161      ;;
2162  esac
2163done
2164# Remove the initial space we just introduced and, as these will be
2165# expanded by make, quote '$'.
2166baseargs=`echo "x$baseargs" | sed -e 's/^x *//' -e 's,\\$,$$,g'`
2167
2168# Add in --program-transform-name, after --program-prefix and
2169# --program-suffix have been applied to it.  Autoconf has already
2170# doubled dollar signs and backslashes in program_transform_name; we want
2171# the backslashes un-doubled, and then the entire thing wrapped in single
2172# quotes, because this will be expanded first by make and then by the shell. 
2173# Also, because we want to override the logic in subdir configure scripts to
2174# choose program_transform_name, replace any s,x,x, with s,y,y,.
2175sed -e "s,\\\\\\\\,\\\\,g; s,','\\\\'',g; s/s,x,x,/s,y,y,/" <<EOF_SED > conftestsed.out
2176${program_transform_name}
2177EOF_SED
2178gcc_transform_name=`cat conftestsed.out`
2179rm -f conftestsed.out
2180baseargs="$baseargs --program-transform-name='${gcc_transform_name}'"
2181
2182# For the build-side libraries, we just need to pretend we're native,
2183# and not use the same cache file.  Multilibs are neither needed nor
2184# desired.
2185build_configargs="--cache-file=../config.cache ${baseargs}"
2186
2187# For host modules, accept cache file option, or specification as blank.
2188case "${cache_file}" in
2189"") # empty
2190  cache_file_option="" ;;
2191/* | [[A-Za-z]]:[[\\/]]* ) # absolute path
2192  cache_file_option="--cache-file=${cache_file}" ;;
2193*) # relative path
2194  cache_file_option="--cache-file=../${cache_file}" ;;
2195esac
2196
2197# Host dirs don't like to share a cache file either, horribly enough.
2198# This seems to be due to autoconf 2.5x stupidity.
2199host_configargs="--cache-file=./config.cache ${extra_host_args} ${baseargs}"
2200
2201target_configargs=${baseargs}
2202
2203# Passing a --with-cross-host argument lets the target libraries know
2204# whether they are being built with a cross-compiler or being built
2205# native.  However, it would be better to use other mechanisms to make the
2206# sorts of decisions they want to make on this basis.  Please consider
2207# this option to be deprecated.  FIXME.
2208if test x${is_cross_compiler} = xyes ; then
2209  target_configargs="--with-cross-host=${host_noncanonical} ${target_configargs}"
2210fi
2211
2212# Default to --enable-multilib.
2213if test x${enable_multilib} = x ; then
2214  target_configargs="--enable-multilib ${target_configargs}"
2215fi
2216
2217# Pass --with-newlib if appropriate.  Note that target_configdirs has
2218# changed from the earlier setting of with_newlib.
2219if test x${with_newlib} != xno && echo " ${target_configdirs} " | grep " newlib " > /dev/null 2>&1 && test -d ${srcdir}/newlib ; then
2220  target_configargs="--with-newlib ${target_configargs}"
2221fi
2222
2223# Different target subdirs use different values of certain variables
2224# (notably CXX).  Worse, multilibs use *lots* of different values.
2225# Worse yet, autoconf 2.5x makes some of these 'precious', meaning that
2226# it doesn't automatically accept command-line overrides of them.
2227# This means it's not safe for target subdirs to share a cache file,
2228# which is disgusting, but there you have it.  Hopefully this can be
2229# fixed in future.  It's still worthwhile to use a cache file for each
2230# directory.  I think.
2231
2232# Pass the appropriate --build, --host, --target and --cache-file arguments.
2233# We need to pass --target, as newer autoconf's requires consistency
2234# for target_alias and gcc doesn't manage it consistently.
2235target_configargs="--cache-file=./config.cache ${target_configargs}"
2236
2237FLAGS_FOR_TARGET=
2238case " $target_configdirs " in
2239 *" newlib "*)
2240  case " $target_configargs " in
2241  *" --with-newlib "*)
2242   case "$target" in
2243   *-cygwin*)
2244     FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup -L$$r/$(TARGET_SUBDIR)/winsup/cygwin -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/include -isystem $$s/winsup/cygwin/include -isystem $$s/winsup/w32api/include' ;;
2245   esac
2246
2247   # If we're not building GCC, don't discard standard headers.
2248   if test -d ${srcdir}/gcc; then
2249     FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -nostdinc'
2250
2251     if test "${build}" != "${host}"; then
2252       # On Canadian crosses, CC_FOR_TARGET will have already been set
2253       # by `configure', so we won't have an opportunity to add -Bgcc/
2254       # to it.  This is right: we don't want to search that directory
2255       # for binaries, but we want the header files in there, so add
2256       # them explicitly.
2257       FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -isystem $$r/$(HOST_SUBDIR)/gcc/include'
2258
2259       # Someone might think of using the pre-installed headers on
2260       # Canadian crosses, in case the installed compiler is not fully
2261       # compatible with the compiler being built.  In this case, it
2262       # would be better to flag an error than risking having
2263       # incompatible object files being constructed.  We can't
2264       # guarantee that an error will be flagged, but let's hope the
2265       # compiler will do it, when presented with incompatible header
2266       # files.
2267     fi
2268   fi
2269
2270   case "${target}-${is_cross_compiler}" in
2271   i[[3456789]]86-*-linux*-no)
2272      # Here host == target, so we don't need to build gcc,
2273      # so we don't want to discard standard headers.
2274      FLAGS_FOR_TARGET=`echo " $FLAGS_FOR_TARGET " | sed -e 's/ -nostdinc / /'`
2275      ;;
2276   *)
2277      # If we're building newlib, use its generic headers last, but search
2278      # for any libc-related directories first (so make it the last -B
2279      # switch).
2280      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/newlib/ -isystem $$r/$(TARGET_SUBDIR)/newlib/targ-include -isystem $$s/newlib/libc/include'
2281      ;;
2282   esac
2283   ;;
2284  esac
2285  ;;
2286esac
2287case "$target" in
2288*-mingw*)
2289  # Can't be handled as Cygwin above since Mingw does not use newlib.
2290  FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/winsup/mingw -L$$r/$(TARGET_SUBDIR)/winsup/w32api/lib -isystem $$s/winsup/mingw/include -isystem $$s/winsup/w32api/include' ;;
2291esac
2292
2293# Allow the user to override the flags for
2294# our build compiler if desired.
2295CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
2296
2297# On Canadian crosses, we'll be searching the right directories for
2298# the previously-installed cross compiler, so don't bother to add
2299# flags for directories within the install tree of the compiler
2300# being built; programs in there won't even run.
2301if test "${build}" = "${host}" && test -d ${srcdir}/gcc; then
2302  # Search for pre-installed headers if nothing else fits.
2303  FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$(build_tooldir)/bin/ -B$(build_tooldir)/lib/ -isystem $(build_tooldir)/include -isystem $(build_tooldir)/sys-include'
2304fi
2305
2306if test "x${use_gnu_ld}" = x &&
2307   echo " ${configdirs} " | grep " ld " > /dev/null ; then
2308  # Arrange for us to find uninstalled linker scripts.
2309  FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(HOST_SUBDIR)/ld'
2310fi
2311
2312# Search for other target-specific linker scripts and such.
2313case "${target}" in
2314  m32c-*-* )
2315    if test -d ${srcdir}/libgloss/m32c; then
2316      # This is for crt0.o
2317      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -B$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2318      # This is for r8c.ld
2319      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/m32c'
2320      # This is for libnosys.a
2321      FLAGS_FOR_TARGET=$FLAGS_FOR_TARGET' -L$$r/$(TARGET_SUBDIR)/libgloss/libnosys'
2322    fi
2323    ;;
2324  mep*)
2325    FLAGS_FOR_TARGET="$FLAGS_FOR_TARGET -mlibrary"
2326    ;;
2327esac
2328
2329# Makefile fragments.
2330for frag in host_makefile_frag target_makefile_frag alphaieee_frag ospace_frag;
2331do
2332  eval fragval=\$$frag
2333  if test $fragval != /dev/null; then
2334    eval $frag=${srcdir}/$fragval
2335  fi
2336done
2337AC_SUBST_FILE(host_makefile_frag)
2338AC_SUBST_FILE(target_makefile_frag)
2339AC_SUBST_FILE(alphaieee_frag)
2340AC_SUBST_FILE(ospace_frag)
2341
2342# Miscellanea: directories, flags, etc.
2343AC_SUBST(RPATH_ENVVAR)
2344AC_SUBST(tooldir)
2345AC_SUBST(build_tooldir)
2346AC_SUBST(CONFIGURE_GDB_TK)
2347AC_SUBST(GDB_TK)
2348AC_SUBST(INSTALL_GDB_TK)
2349
2350# Build module lists & subconfigure args.
2351AC_SUBST(build_configargs)
2352AC_SUBST(build_configdirs)
2353
2354# Host module lists & subconfigure args.
2355AC_SUBST(host_configargs)
2356AC_SUBST(configdirs)
2357
2358# Target module lists & subconfigure args.
2359AC_SUBST(target_configargs)
2360
2361
2362# Build tools.
2363AC_SUBST(CC_FOR_BUILD)
2364AC_SUBST(config_shell)
2365
2366# Generate default definitions for YACC, M4, LEX and other programs that run
2367# on the build machine.  These are used if the Makefile can't locate these
2368# programs in objdir.
2369MISSING=`cd $ac_aux_dir && ${PWDCMD-pwd}`/missing
2370
2371AC_CHECK_PROGS([YACC], ['bison -y' byacc yacc], [$MISSING bison -y])
2372case " $build_configdirs " in
2373  *" bison "*) YACC='$$r/$(BUILD_SUBDIR)/bison/tests/bison -y' ;;
2374  *" byacc "*) YACC='$$r/$(BUILD_SUBDIR)/byacc/byacc' ;;
2375esac
2376
2377AC_CHECK_PROGS([BISON], [bison], [$MISSING bison])
2378case " $build_configdirs " in
2379  *" bison "*) BISON='$$r/$(BUILD_SUBDIR)/bison/tests/bison' ;;
2380esac
2381
2382AC_CHECK_PROGS([M4], [gm4 gnum4 m4], [$MISSING m4])
2383case " $build_configdirs " in
2384  *" m4 "*) M4='$$r/$(BUILD_SUBDIR)/m4/m4' ;;
2385esac
2386
2387AC_CHECK_PROGS([LEX], [flex lex], [$MISSING flex])
2388case " $build_configdirs " in
2389  *" flex "*) LEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2390  *" lex "*) LEX='$$r/$(BUILD_SUBDIR)/lex/lex' ;;
2391esac
2392
2393AC_CHECK_PROGS([FLEX], [flex], [$MISSING flex])
2394case " $build_configdirs " in
2395  *" flex "*) FLEX='$$r/$(BUILD_SUBDIR)/flex/flex' ;;
2396esac
2397
2398AC_CHECK_PROGS([MAKEINFO], makeinfo, [$MISSING makeinfo])
2399case " $build_configdirs " in
2400  *" texinfo "*) MAKEINFO='$$r/$(BUILD_SUBDIR)/texinfo/makeinfo/makeinfo' ;;
2401  *)
2402changequote(,)
2403    # For an installed makeinfo, we require it to be from texinfo 4.4 or
2404    # higher, else we use the "missing" dummy.
2405    if ${MAKEINFO} --version \
2406       | egrep 'texinfo[^0-9]*([1-3][0-9]|4\.[4-9]|[5-9])' >/dev/null 2>&1; then
2407      :
2408    else
2409      MAKEINFO="$MISSING makeinfo"
2410    fi
2411    ;;
2412changequote([,])
2413esac
2414
2415# FIXME: expect and dejagnu may become build tools?
2416
2417AC_CHECK_PROGS(EXPECT, expect, expect)
2418case " $configdirs " in
2419  *" expect "*)
2420    test $host = $build && EXPECT='$$r/$(HOST_SUBDIR)/expect/expect'
2421    ;;
2422esac
2423
2424AC_CHECK_PROGS(RUNTEST, runtest, runtest)
2425case " $configdirs " in
2426  *" dejagnu "*)
2427    test $host = $build && RUNTEST='$$s/$(HOST_SUBDIR)/dejagnu/runtest'
2428    ;;
2429esac
2430
2431
2432# Host tools.
2433NCN_STRICT_CHECK_TOOLS(AR, ar)
2434NCN_STRICT_CHECK_TOOLS(AS, as)
2435NCN_STRICT_CHECK_TOOLS(DLLTOOL, dlltool)
2436NCN_STRICT_CHECK_TOOLS(LD, ld)
2437NCN_STRICT_CHECK_TOOLS(LIPO, lipo)
2438NCN_STRICT_CHECK_TOOLS(NM, nm)
2439NCN_STRICT_CHECK_TOOLS(RANLIB, ranlib, :)
2440NCN_STRICT_CHECK_TOOLS(STRIP, strip, :)
2441NCN_STRICT_CHECK_TOOLS(WINDRES, windres)
2442NCN_STRICT_CHECK_TOOLS(OBJCOPY, objcopy)
2443NCN_STRICT_CHECK_TOOLS(OBJDUMP, objdump)
2444AC_SUBST(CC)
2445AC_SUBST(CXX)
2446AC_SUBST(CFLAGS)
2447AC_SUBST(CFLAGS_FOR_BUILD)
2448AC_SUBST(CXXFLAGS)
2449
2450# Target tools.
2451AC_ARG_WITH([build-time-tools], 
2452  [  --with-build-time-tools=path
2453                          use given path to find target tools during the build],
2454  [case x"$withval" in
2455     x/*) ;;
2456     *)
2457       with_build_time_tools=
2458       AC_MSG_WARN([argument to --with-build-time-tools must be an absolute path])
2459       ;;
2460   esac],
2461  [with_build_time_tools=])
2462
2463NCN_STRICT_CHECK_TARGET_TOOLS(CC_FOR_TARGET, cc gcc)
2464NCN_STRICT_CHECK_TARGET_TOOLS(CXX_FOR_TARGET, c++ g++ cxx gxx)
2465NCN_STRICT_CHECK_TARGET_TOOLS(GCC_FOR_TARGET, gcc, ${CC_FOR_TARGET})
2466NCN_STRICT_CHECK_TARGET_TOOLS(GCJ_FOR_TARGET, gcj)
2467NCN_STRICT_CHECK_TARGET_TOOLS(GFORTRAN_FOR_TARGET, gfortran)
2468
2469ACX_CHECK_INSTALLED_TARGET_TOOL(AR_FOR_TARGET, ar)
2470ACX_CHECK_INSTALLED_TARGET_TOOL(AS_FOR_TARGET, as)
2471ACX_CHECK_INSTALLED_TARGET_TOOL(DLLTOOL_FOR_TARGET, dlltool)
2472ACX_CHECK_INSTALLED_TARGET_TOOL(LD_FOR_TARGET, ld)
2473ACX_CHECK_INSTALLED_TARGET_TOOL(LIPO_FOR_TARGET, lipo)
2474ACX_CHECK_INSTALLED_TARGET_TOOL(NM_FOR_TARGET, nm)
2475ACX_CHECK_INSTALLED_TARGET_TOOL(OBJDUMP_FOR_TARGET, objdump)
2476ACX_CHECK_INSTALLED_TARGET_TOOL(RANLIB_FOR_TARGET, ranlib, :)
2477ACX_CHECK_INSTALLED_TARGET_TOOL(STRIP_FOR_TARGET, strip)
2478ACX_CHECK_INSTALLED_TARGET_TOOL(WINDRES_FOR_TARGET, windres)
2479
2480RAW_CXX_FOR_TARGET="$CXX_FOR_TARGET"
2481
2482GCC_TARGET_TOOL(ar, AR_FOR_TARGET, AR, [binutils/ar])
2483GCC_TARGET_TOOL(as, AS_FOR_TARGET, AS, [gas/as-new])
2484GCC_TARGET_TOOL(cc, CC_FOR_TARGET, CC, [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2485GCC_TARGET_TOOL(c++, CXX_FOR_TARGET, CXX,
2486		[gcc/g++ -B$$r/$(HOST_SUBDIR)/gcc/ -nostdinc++ `test ! -f $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags || $(SHELL) $$r/$(TARGET_SUBDIR)/libstdc++-v3/scripts/testsuite_flags --build-includes` -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2487		c++)
2488GCC_TARGET_TOOL(c++ for libstdc++, RAW_CXX_FOR_TARGET, CXX,
2489		[gcc/xgcc -shared-libgcc -B$$r/$(HOST_SUBDIR)/gcc -nostdinc++ -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src -L$$r/$(TARGET_SUBDIR)/libstdc++-v3/src/.libs],
2490		c++)
2491GCC_TARGET_TOOL(dlltool, DLLTOOL_FOR_TARGET, DLLTOOL, [binutils/dlltool])
2492GCC_TARGET_TOOL(gcc, GCC_FOR_TARGET, , [gcc/xgcc -B$$r/$(HOST_SUBDIR)/gcc/])
2493GCC_TARGET_TOOL(gcj, GCJ_FOR_TARGET, GCJ,
2494		[gcc/gcj -B$$r/$(HOST_SUBDIR)/gcc/], java)
2495GCC_TARGET_TOOL(gfortran, GFORTRAN_FOR_TARGET, GFORTRAN,
2496		[gcc/gfortran -B$$r/$(HOST_SUBDIR)/gcc/], fortran)
2497GCC_TARGET_TOOL(ld, LD_FOR_TARGET, LD, [ld/ld-new])
2498GCC_TARGET_TOOL(lipo, LIPO_FOR_TARGET, LIPO)
2499GCC_TARGET_TOOL(nm, NM_FOR_TARGET, NM, [binutils/nm-new])
2500GCC_TARGET_TOOL(objdump, OBJDUMP_FOR_TARGET, OBJDUMP, [binutils/objdump])
2501GCC_TARGET_TOOL(ranlib, RANLIB_FOR_TARGET, RANLIB, [binutils/ranlib])
2502GCC_TARGET_TOOL(strip, STRIP_FOR_TARGET, STRIP, [binutils/strip])
2503GCC_TARGET_TOOL(windres, WINDRES_FOR_TARGET, WINDRES, [binutils/windres])
2504
2505AC_SUBST(FLAGS_FOR_TARGET)
2506AC_SUBST(RAW_CXX_FOR_TARGET)
2507
2508# Certain tools may need extra flags.
2509AR_FOR_TARGET=${AR_FOR_TARGET}${extra_arflags_for_target}
2510RANLIB_FOR_TARGET=${RANLIB_FOR_TARGET}${extra_ranlibflags_for_target}
2511NM_FOR_TARGET=${NM_FOR_TARGET}${extra_nmflags_for_target}
2512
2513# When building target libraries, except in a Canadian cross, we use
2514# the same toolchain as the compiler we just built.
2515COMPILER_AS_FOR_TARGET='$(AS_FOR_TARGET)'
2516COMPILER_LD_FOR_TARGET='$(LD_FOR_TARGET)'
2517COMPILER_NM_FOR_TARGET='$(NM_FOR_TARGET)'
2518if test $host = $build; then
2519  case " $configdirs " in
2520    *" gcc "*)
2521      COMPILER_AS_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/as'
2522      COMPILER_LD_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/collect-ld'
2523      COMPILER_NM_FOR_TARGET='$$r/$(HOST_SUBDIR)/gcc/nm'${extra_nmflags_for_target}
2524      ;;
2525  esac
2526fi
2527
2528AC_SUBST(COMPILER_AS_FOR_TARGET)
2529AC_SUBST(COMPILER_LD_FOR_TARGET)
2530AC_SUBST(COMPILER_NM_FOR_TARGET)
2531
2532AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
2533AC_ARG_ENABLE(maintainer-mode,
2534[  --enable-maintainer-mode enable make rules and dependencies not useful
2535                          (and sometimes confusing) to the casual installer],
2536      USE_MAINTAINER_MODE=$enableval,
2537      USE_MAINTAINER_MODE=no)
2538AC_MSG_RESULT($USE_MAINTAINER_MODE)
2539AC_SUBST(MAINTAINER_MODE_TRUE)
2540AC_SUBST(MAINTAINER_MODE_FALSE)
2541if test "$USE_MAINTAINER_MODE" = yes; then
2542  MAINTAINER_MODE_TRUE=
2543  MAINTAINER_MODE_FALSE='#'
2544else
2545  MAINTAINER_MODE_TRUE='#'
2546  MAINTAINER_MODE_FALSE=
2547fi	
2548MAINT=$MAINTAINER_MODE_TRUE
2549AC_SUBST(MAINT)dnl
2550
2551# ---------------------
2552# GCC bootstrap support
2553# ---------------------
2554
2555# Stage specific cflags for build.
2556stage1_cflags="-g"
2557case $build in
2558  vax-*-*)
2559    case ${GCC} in
2560      yes) stage1_cflags="-g -Wa,-J" ;;
2561      *) stage1_cflags="-g -J" ;;
2562    esac ;;
2563esac
2564
2565# This is aimed to mimic bootstrap with a non-GCC compiler to catch problems.
2566if test "$GCC" = yes; then
2567  saved_CFLAGS="$CFLAGS"
2568
2569  # Pass -fkeep-inline-functions for stage 1 if the GCC version supports it.
2570  CFLAGS="$CFLAGS -fkeep-inline-functions"
2571  AC_MSG_CHECKING([whether -fkeep-inline-functions is supported])
2572  AC_TRY_COMPILE([
2573#if (__GNUC__ < 3) \
2574    || (__GNUC__ == 3 && (__GNUC_MINOR__ < 3 \
2575			  || (__GNUC_MINOR__ == 3 && __GNUC_PATCHLEVEL__ < 1)))
2576#error http://gcc.gnu.org/PR29382
2577#endif
2578    ],,
2579    [AC_MSG_RESULT([yes]); stage1_cflags="$stage1_cflags -fkeep-inline-functions"],
2580    [AC_MSG_RESULT([no])])
2581
2582  CFLAGS="$saved_CFLAGS"
2583fi
2584
2585AC_SUBST(stage1_cflags)
2586
2587# Enable --enable-checking in stage1 of the compiler.
2588AC_ARG_ENABLE(stage1-checking,
2589[  --enable-stage1-checking[=all]   choose additional checking for stage1
2590                          of the compiler.],
2591[stage1_checking=--enable-checking=${enable_stage1_checking}],
2592[if test "x$enable_checking" = xno; then
2593  stage1_checking=--enable-checking
2594else
2595  stage1_checking=--enable-checking${enable_checking+=}$enable_checking
2596fi])
2597AC_SUBST(stage1_checking)
2598
2599# Enable -Werror in bootstrap stage2 and later.
2600AC_ARG_ENABLE(werror,
2601[  --enable-werror         enable -Werror in bootstrap stage2 and later], [],
2602[if test -d ${srcdir}/gcc && test x"`cat $srcdir/gcc/DEV-PHASE`" = xexperimental; then
2603  enable_werror=yes
2604else
2605  enable_werror=no
2606fi])
2607case ${enable_werror} in
2608  yes) stage2_werror_flag="--enable-werror-always" ;;
2609  *) stage2_werror_flag="" ;;
2610esac
2611AC_SUBST(stage2_werror_flag)
2612
2613# Flags needed to enable html installing and building
2614AC_ARG_WITH(datarootdir,
2615[  --with-datarootdir	Use datarootdir as the data root directory.],
2616[datarootdir="\${prefix}/${withval}"],
2617[datarootdir="\${prefix}/share"])
2618
2619AC_ARG_WITH(docdir,
2620[  --with-docdir	Install documentation in this directory.],
2621[docdir="\${prefix}/${withval}"],
2622[docdir="\${datarootdir}/doc"])
2623
2624AC_ARG_WITH(pdfdir,
2625[  --with-pdfdir	Install pdf in this directory.],
2626[pdfdir="\${prefix}/${withval}"],
2627[pdfdir="\${docdir}"])
2628
2629AC_ARG_WITH(htmldir,
2630[  --with-htmldir	Install html in this directory.],
2631[htmldir="\${prefix}/${withval}"],
2632[htmldir="\${docdir}"])
2633
2634AC_SUBST(datarootdir)
2635AC_SUBST(docdir)
2636AC_SUBST(pdfdir)
2637AC_SUBST(htmldir)
2638
2639AC_OUTPUT(Makefile)
2640