Ignore:
Timestamp:
Aug 16, 2003, 6:41:03 PM (22 years ago)
Author:
bird
Message:

binutils v2.14 - offical sources.

File:
1 edited

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Unmodified
Added
Removed

  • branches/GNU/src/binutils/config-ml.in

    • Property cvs2svn:cvs-rev changed from 1.1 to 1.1.1.2
    r604 r605  
    1 # Configure fragment invoked in the post-target section for subdirs
    2 # wanting multilib support.
    3 #
    4 # It is advisable to support a few --enable/--disable options to let the
    5 # user select which libraries s/he really wants.
    6 #
    7 # Subdirectories wishing to use multilib should put the following lines
    8 # in the "post-target" section of configure.in.
    9 #
    10 # if [ "${srcdir}" = "." ] ; then
    11 #   if [ "${with_target_subdir}" != "." ] ; then
    12 #     . ${with_multisrctop}../../config-ml.in
    13 #   else
    14 #     . ${with_multisrctop}../config-ml.in
    15 #   fi
    16 # else
    17 #   . ${srcdir}/../config-ml.in
    18 # fi
    19 #
    20 # See librx/configure.in in the libg++ distribution for an example of how
    21 # to handle autoconf'd libraries.
    22 #
    23 # Things are complicated because 6 separate cases must be handled:
    24 # 2 (native, cross) x 3 (absolute-path, relative-not-dot, dot) = 6.
    25 #
    26 # srcdir=. is special.  It must handle make programs that don't handle VPATH.
    27 # To implement this, a symlink tree is built for each library and for each
    28 # multilib subdir.
    29 #
    30 # The build tree is layed out as
    31 #
    32 # ./
    33 #   libg++
    34 #   newlib
    35 #   m68020/
    36 #          libg++
    37 #          newlib
    38 #          m68881/
    39 #                 libg++
    40 #                 newlib
    41 #
    42 # The nice feature about this arrangement is that inter-library references
    43 # in the build tree work without having to care where you are.  Note that
    44 # inter-library references also work in the source tree because symlink trees
    45 # are built when srcdir=.
    46 #
    47 # Unfortunately, trying to access the libraries in the build tree requires
    48 # the user to manually choose which library to use as GCC won't be able to
    49 # find the right one.  This is viewed as the lesser of two evils.
    50 #
    51 # Configure variables:
    52 # ${with_target_subdir} = "." for native, or ${target_alias} for cross.
    53 # Set by top level Makefile.
    54 # ${with_multisrctop} = how many levels of multilibs there are in the source
    55 # tree.  It exists to handle the case of configuring in the source tree:
    56 # ${srcdir} is not constant.
    57 # ${with_multisubdir} = name of multilib subdirectory (eg: m68020/m68881).
    58 #
    59 # Makefile variables:
    60 # MULTISRCTOP = number of multilib levels in source tree (+1 if cross)
    61 # (FIXME: note that this is different than ${with_multisrctop}.  Check out.).
    62 # MULTIBUILDTOP = number of multilib levels in build tree
    63 # MULTIDIRS = list of multilib subdirs (eg: m68000 m68020 ...)
    64 # (only defined in each library's main Makefile).
    65 # MULTISUBDIR = installed subdirectory name with leading '/' (eg: /m68000)
    66 # (only defined in each multilib subdir).
    67 
    68 # FIXME: Multilib is currently disabled by default for everything other than
    69 # newlib.  It is up to each target to turn on multilib support for the other
    70 # libraries as desired.
    71 
    72 # We have to handle being invoked by both Cygnus configure and Autoconf.
    73 #
    74 # Cygnus configure incoming variables:
    75 # srcdir, subdir, host, arguments
    76 #
    77 # Autoconf incoming variables:
    78 # srcdir, host, ac_configure_args
    79 #
    80 # We *could* figure srcdir and host out, but we'd have to do work that
    81 # our caller has already done to figure them out and requiring these two
    82 # seems reasonable.
    83 # Note that `host' in this case is GCC's `target'.  Target libraries are
    84 # configured for a particular host.
    85 
    86 if [ -n "${ac_configure_args}" ]; then
    87   Makefile=${ac_file-Makefile}
    88   ml_config_shell=${CONFIG_SHELL-/bin/sh}
    89   ml_arguments="${ac_configure_args}"
    90   ml_realsrcdir=${srcdir}
    91 else
    92   Makefile=${Makefile-Makefile}
    93   ml_config_shell=${config_shell-/bin/sh}
    94   ml_arguments="${arguments}"
    95   if [ -n "${subdir}" -a "${subdir}" != "." ] ; then
    96     ml_realsrcdir=${srcdir}/${subdir}
    97   else
    98     ml_realsrcdir=${srcdir}
    99   fi
    100 fi
    101 
    102 # Scan all the arguments and set all the ones we need.
    103 
    104 ml_verbose=--verbose
    105 for option in ${ml_arguments}
    106 do
    107   case $option in
    108   --*) ;;
    109   -*) option=-$option ;;
    110   esac
    111 
    112   case $option in
    113   --*=*)
    114         optarg=`echo $option | sed -e 's/^[^=]*=//'`
    115         ;;
    116   esac
    117 
    118   case $option in
    119   --disable-*)
    120         enableopt=`echo ${option} | sed 's:^--disable-:enable_:;s:-:_:g'`
    121         eval $enableopt=no
    122         ;;
    123   --enable-*)
    124         case "$option" in
    125         *=*)    ;;
    126         *)      optarg=yes ;;
    127         esac
    128         enableopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
    129         eval $enableopt="$optarg"
    130         ;;
    131   --norecursion | --no*)
    132         ml_norecursion=yes
    133         ;;
    134   --silent | --sil* | --quiet | --q*)
    135         ml_verbose=--silent
    136         ;;
    137   --verbose | --v | --verb*)
    138         ml_verbose=--verbose
    139         ;;
    140   --with-*)
    141         case "$option" in
    142         *=*)    ;;
    143         *)      optarg=yes ;;
    144         esac
    145         withopt=`echo ${option} | sed 's:^--::;s:=.*$::;s:-:_:g'`
    146         eval $withopt="$optarg"
    147         ;;
    148   --without-*)
    149         withopt=`echo ${option} | sed 's:^--::;s:out::;s:-:_:g'`
    150         eval $withopt=no
    151         ;;
    152   esac
    153 done
    154 
    155 # Only do this if --enable-multilib.
    156 if [ "${enable_multilib}" = yes ]; then
    157 
    158 # Compute whether this is the library's top level directory
    159 # (ie: not a multilib subdirectory, and not a subdirectory like libg++/src).
    160 # ${with_multisubdir} tells us we're in the right branch, but we could be
    161 # in a subdir of that.
    162 # ??? The previous version could void this test by separating the process into
    163 # two files: one that only the library's toplevel configure.in ran (to
    164 # configure the multilib subdirs), and another that all configure.in's ran to
    165 # update the Makefile.  It seemed reasonable to collapse all multilib support
    166 # into one file, but it does leave us with having to perform this test.
    167 ml_toplevel_p=no
    168 if [ -z "${with_multisubdir}" ]; then
    169   if [ "${srcdir}" = "." ]; then
    170     # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
    171     # ${with_target_subdir} = "." for native, otherwise target alias.
    172     if [ "${with_target_subdir}" = "." ]; then
    173       if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
    174         ml_toplevel_p=yes
    175       fi
    176     else
    177       if [ -f ${ml_realsrcdir}/../../config-ml.in ]; then
    178         ml_toplevel_p=yes
    179       fi
    180     fi
    181   else
    182     # Use ${ml_realsrcdir} instead of ${srcdir} here to account for ${subdir}.
    183     if [ -f ${ml_realsrcdir}/../config-ml.in ]; then
    184       ml_toplevel_p=yes
    185     fi
    186   fi
    187 fi
    188 
    189 # If this is the library's top level directory, set multidirs to the
    190 # multilib subdirs to support.  This lives at the top because we need
    191 # `multidirs' set right away.
    192 
    193 if [ "${ml_toplevel_p}" = yes ]; then
    194 
    195 multidirs=
    196 for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
    197   dir=`echo $i | sed -e 's/;.*$//'`
    198   if [ "${dir}" = "." ]; then
    199     true
    200   else
    201     if [ -z "${multidirs}" ]; then
    202       multidirs="${dir}"
    203     else
    204       multidirs="${multidirs} ${dir}"
    205     fi
    206   fi
    207 done
    208 
    209 # Target libraries are configured for the host they run on, so we check
    210 # $host here, not $target.
    211 
    212 case "${host}" in
    213 arc-*-elf*)
    214         if [ x$enable_biendian != xyes ]
    215         then
    216           old_multidirs=${multidirs}
    217           multidirs=""
    218           for x in ${old_multidirs}; do
    219             case "${x}" in
    220               *be*) : ;;
    221               *) multidirs="${multidirs} ${x}" ;;
    222             esac
    223           done
    224         fi
    225         ;;
    226 arm-*-*)
    227         if [ x"$enable_fpu" = xno ]
    228         then
    229           old_multidirs=${multidirs}
    230           multidirs=""
    231           for x in ${old_multidirs}; do
    232             case "${x}" in
    233               *fpu*) : ;;
    234               *) multidirs="${multidirs} ${x}" ;;
    235             esac
    236           done
    237         fi
    238         if [ x"$enable_26bit" = xno ]
    239         then
    240           old_multidirs=${multidirs}
    241           multidirs=""
    242           for x in ${old_multidirs}; do
    243             case "${x}" in
    244               *26bit*) : ;;
    245               *) multidirs="${multidirs} ${x}" ;;
    246             esac
    247           done
    248         fi
    249         if [ x"$enable_underscore" = xno ]
    250         then
    251           old_multidirs=${multidirs}
    252           multidirs=""
    253           for x in ${old_multidirs}; do
    254             case "${x}" in
    255               *under*) : ;;
    256               *) multidirs="${multidirs} ${x}" ;;
    257             esac
    258           done
    259         fi
    260         if [ x"$enable_interwork" = xno ]
    261         then
    262           old_multidirs=${multidirs}
    263           multidirs=""
    264           for x in ${old_multidirs}; do
    265             case "${x}" in
    266               *interwork*) : ;;
    267               *) multidirs="${multidirs} ${x}" ;;
    268             esac
    269           done
    270         fi
    271         if [ x$enable_biendian = xno ]
    272         then
    273           old_multidirs="${multidirs}"
    274           multidirs=""
    275           for x in ${old_multidirs}; do
    276             case "$x" in
    277               *le* ) : ;;
    278               *be* ) : ;;
    279               *) multidirs="${multidirs} ${x}" ;;
    280             esac
    281           done
    282         fi
    283         if [ x"$enable_nofmult" = xno ]
    284         then
    285           old_multidirs="${multidirs}"
    286           multidirs=""
    287           for x in ${old_multidirs}; do
    288             case "$x" in
    289               *nofmult* ) : ;;
    290               *) multidirs="${multidirs} ${x}" ;;
    291             esac
    292           done
    293         fi
    294         ;;
    295 m68*-*-*)
    296         if [ x$enable_softfloat = xno ]
    297         then
    298           old_multidirs="${multidirs}"
    299           multidirs=""
    300           for x in ${old_multidirs}; do
    301             case "$x" in
    302               *soft-float* ) : ;;
    303               *) multidirs="${multidirs} ${x}" ;;
    304             esac
    305           done
    306         fi
    307         if [ x$enable_m68881 = xno ]
    308         then
    309           old_multidirs="${multidirs}"
    310           multidirs=""
    311           for x in ${old_multidirs}; do
    312             case "$x" in
    313               *m68881* ) : ;;
    314               *) multidirs="${multidirs} ${x}" ;;
    315             esac
    316           done
    317         fi
    318         if [ x$enable_m68000 = xno ]
    319         then
    320           old_multidirs="${multidirs}"
    321           multidirs=""
    322           for x in ${old_multidirs}; do
    323             case "$x" in
    324               *m68000* ) : ;;
    325               *) multidirs="${multidirs} ${x}" ;;
    326             esac
    327           done
    328         fi
    329         if [ x$enable_m68020 = xno ]
    330         then
    331           old_multidirs="${multidirs}"
    332           multidirs=""
    333           for x in ${old_multidirs}; do
    334             case "$x" in
    335               *m68020* ) : ;;
    336               *) multidirs="${multidirs} ${x}" ;;
    337             esac
    338           done
    339         fi
    340         ;;
    341 mips*-*-*)
    342         if [ x$enable_single_float = xno ]
    343         then
    344           old_multidirs="${multidirs}"
    345           multidirs=""
    346           for x in ${old_multidirs}; do
    347             case "$x" in
    348               *single* ) : ;;
    349               *) multidirs="${multidirs} ${x}" ;;
    350             esac
    351           done
    352         fi
    353         if [ x$enable_biendian = xno ]
    354         then
    355           old_multidirs="${multidirs}"
    356           multidirs=""
    357           for x in ${old_multidirs}; do
    358             case "$x" in
    359               *el* ) : ;;
    360               *eb* ) : ;;
    361               *) multidirs="${multidirs} ${x}" ;;
    362             esac
    363           done
    364         fi
    365         if [ x$enable_softfloat = xno ]
    366         then
    367           old_multidirs="${multidirs}"
    368           multidirs=""
    369           for x in ${old_multidirs}; do
    370             case "$x" in
    371               *soft-float* ) : ;;
    372               *) multidirs="${multidirs} ${x}" ;;
    373             esac
    374           done
    375         fi
    376         case " $multidirs " in
    377         *" mabi=64 "*)
    378           # We will not be able to create libraries with -mabi=64 if
    379           # we cannot even link a trivial program.  It usually
    380           # indicates the 64bit libraries are missing.
    381           if echo 'main() {}' > conftest.c &&
    382              ${CC-gcc} -mabi=64 conftest.c -o conftest; then
    383             :
    384           else
    385             echo Could not link program with -mabi=64, disabling it.
    386             old_multidirs="${multidirs}"
    387             multidirs=""
    388             for x in ${old_multidirs}; do
    389               case "$x" in
    390               *mabi=64* ) : ;;
    391               *) multidirs="${multidirs} ${x}" ;;
    392               esac
    393             done
    394           fi
    395           rm -f conftest.c conftest
    396           ;;
    397         esac
    398         ;;
    399 powerpc*-*-* | rs6000*-*-*)
    400         if [ x$enable_softfloat = xno ]
    401         then
    402           old_multidirs="${multidirs}"
    403           multidirs=""
    404           for x in ${old_multidirs}; do
    405             case "$x" in
    406               *soft-float* ) : ;;
    407               *) multidirs="${multidirs} ${x}" ;;
    408             esac
    409           done
    410         fi
    411         if [ x$enable_powercpu = xno ]
    412         then
    413           old_multidirs="${multidirs}"
    414           multidirs=""
    415           for x in ${old_multidirs}; do
    416             case "$x" in
    417               power | */power | */power/* ) : ;;
    418               *) multidirs="${multidirs} ${x}" ;;
    419             esac
    420           done
    421         fi
    422         if [ x$enable_powerpccpu = xno ]
    423         then
    424           old_multidirs="${multidirs}"
    425           multidirs=""
    426           for x in ${old_multidirs}; do
    427             case "$x" in
    428               *powerpc* ) : ;;
    429               *) multidirs="${multidirs} ${x}" ;;
    430             esac
    431           done
    432         fi
    433         if [ x$enable_powerpcos = xno ]
    434         then
    435           old_multidirs="${multidirs}"
    436           multidirs=""
    437           for x in ${old_multidirs}; do
    438             case "$x" in
    439               *mcall-linux* | *mcall-solaris* ) : ;;
    440               *) multidirs="${multidirs} ${x}" ;;
    441             esac
    442           done
    443         fi
    444         if [ x$enable_biendian = xno ]
    445         then
    446           old_multidirs="${multidirs}"
    447           multidirs=""
    448           for x in ${old_multidirs}; do
    449             case "$x" in
    450               *mlittle* | *mbig* ) : ;;
    451               *) multidirs="${multidirs} ${x}" ;;
    452             esac
    453           done
    454         fi
    455         if [ x$enable_sysv = xno ]
    456         then
    457           old_multidirs="${multidirs}"
    458           multidirs=""
    459           for x in ${old_multidirs}; do
    460             case "$x" in
    461               *mcall-sysv* ) : ;;
    462               *) multidirs="${multidirs} ${x}" ;;
    463             esac
    464           done
    465         fi
    466         if [ x$enable_aix = xno ]
    467         then
    468           old_multidirs="${multidirs}"
    469           multidirs=""
    470           for x in ${old_multidirs}; do
    471             case "$x" in
    472               *mcall-aix* ) : ;;
    473               *) multidirs="${multidirs} ${x}" ;;
    474             esac
    475           done
    476         fi
    477         ;;
    478 sparc*-*-*)
    479         case " $multidirs " in
    480         *" m64 "*)
    481           # We will not be able to create libraries with -m64 if
    482           # we cannot even link a trivial program.  It usually
    483           # indicates the 64bit libraries are missing.
    484           if echo 'main() {}' > conftest.c &&
    485              ${CC-gcc} -m64 conftest.c -o conftest; then
    486             :
    487           else
    488             echo Could not link program with -m64, disabling it.
    489             old_multidirs="${multidirs}"
    490             multidirs=""
    491             for x in ${old_multidirs}; do
    492               case "$x" in
    493               *m64* ) : ;;
    494               *) multidirs="${multidirs} ${x}" ;;
    495               esac
    496             done
    497           fi
    498           rm -f conftest.c conftest
    499           ;;
    500         esac
    501         ;;
    502 esac
    503 
    504 # Remove extraneous blanks from multidirs.
    505 # Tests like `if [ -n "$multidirs" ]' require it.
    506 multidirs=`echo "$multidirs" | sed -e 's/^[ ][ ]*//' -e 's/[ ][ ]*$//' -e 's/[ ][ ]*/ /g'`
    507 
    508 # Add code to library's top level makefile to handle building the multilib
    509 # subdirs.
    510 
    511 cat > Multi.tem <<\EOF
    512 
    513 # FIXME: There should be an @-sign in front of the `if'.
    514 # Leave out until this is tested a bit more.
    515 multi-do:
    516         if [ -z "$(MULTIDIRS)" ]; then \
    517           true; \
    518         else \
    519           rootpre=`pwd`/; export rootpre; \
    520           srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
    521           lib=`echo $${rootpre} | sed -e 's,^.*/\([^/][^/]*\)/$$,\1,'`; \
    522           compiler="$(CC)"; \
    523           for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
    524             dir=`echo $$i | sed -e 's/;.*$$//'`; \
    525             if [ "$${dir}" = "." ]; then \
    526               true; \
    527             else \
    528               if [ -d ../$${dir}/$${lib} ]; then \
    529                 flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
    530                 if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) \
    531                                 CFLAGS="$(CFLAGS) $${flags}" \
    532                                 prefix="$(prefix)" \
    533                                 exec_prefix="$(exec_prefix)" \
    534                                 CXXFLAGS="$(CXXFLAGS) $${flags}" \
    535                                 LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
    536                                 LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
    537                                 LDFLAGS="$(LDFLAGS) $${flags}" \
    538                                 $(DO)); then \
    539                   true; \
    540                 else \
    541                   exit 1; \
    542                 fi; \
    543               else true; \
    544               fi; \
    545             fi; \
    546           done; \
    547         fi
    548 
    549 # FIXME: There should be an @-sign in front of the `if'.
    550 # Leave out until this is tested a bit more.
    551 multi-clean:
    552         if [ -z "$(MULTIDIRS)" ]; then \
    553           true; \
    554         else \
    555           lib=`pwd | sed -e 's,^.*/\([^/][^/]*\)$$,\1,'`; \
    556           for dir in Makefile $(MULTIDIRS); do \
    557             if [ -f ../$${dir}/$${lib}/Makefile ]; then \
    558               if (cd ../$${dir}/$${lib}; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
    559               then true; \
    560               else exit 1; \
    561               fi; \
    562             else true; \
    563             fi; \
    564           done; \
    565         fi
    566 EOF
    567 
    568 cat ${Makefile} Multi.tem > Makefile.tem
    569 rm -f ${Makefile} Multi.tem
    570 mv Makefile.tem ${Makefile}
    571 
    572 fi # ${ml_toplevel_p} = yes
    573 
    574 if [ "${ml_verbose}" = --verbose ]; then
    575   echo "Adding multilib support to Makefile in ${ml_realsrcdir}"
    576   if [ "${ml_toplevel_p}" = yes ]; then
    577     echo "multidirs=${multidirs}"
    578   fi
    579   echo "with_multisubdir=${with_multisubdir}"
    580 fi
    581 
    582 if [ "${srcdir}" = "." ]; then
    583   if [ "${with_target_subdir}" != "." ]; then
    584     ml_srcdotdot="../"
    585   else
    586     ml_srcdotdot=""
    587   fi
    588 else
    589   ml_srcdotdot=""
    590 fi
    591 
    592 if [ -z "${with_multisubdir}" ]; then
    593   ml_subdir=
    594   ml_builddotdot=
    595   : # ml_srcdotdot= # already set
    596 else
    597   ml_subdir="/${with_multisubdir}"
    598   # The '[^/][^/]*' appears that way to work around a SunOS sed bug.
    599   ml_builddotdot=`echo ${with_multisubdir} | sed -e 's:[^/][^/]*:..:g'`/
    600   if [ "$srcdir" = "." ]; then
    601     ml_srcdotdot=${ml_srcdotdot}${ml_builddotdot}
    602   else
    603     : # ml_srcdotdot= # already set
    604   fi
    605 fi
    606 
    607 if [ "${ml_toplevel_p}" = yes ]; then
    608   ml_do='$(MAKE)'
    609   ml_clean='$(MAKE)'
    610 else
    611   ml_do=true
    612   ml_clean=true
    613 fi
    614 
    615 # TOP is used by newlib and should not be used elsewhere for this purpose.
    616 # MULTI{SRC,BUILD}TOP are the proper ones to use.  MULTISRCTOP is empty
    617 # when srcdir != builddir.  MULTIBUILDTOP is always some number of ../'s.
    618 # FIXME: newlib needs to be updated to use MULTI{SRC,BUILD}TOP so we can
    619 # delete TOP.  Newlib may wish to continue to use TOP for its own purposes
    620 # of course.
    621 # MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
    622 # and lists the subdirectories to recurse into.
    623 # MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
    624 # (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
    625 # a leading '/'.
    626 # MULTIDO is used for targets like all, install, and check where
    627 # $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
    628 # MULTICLEAN is used for the *clean targets.
    629 #
    630 # ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
    631 # currently kept separate because we don't want the *clean targets to require
    632 # the existence of the compiler (which MULTIDO currently requires) and
    633 # therefore we'd have to record the directory options as well as names
    634 # (currently we just record the names and use --print-multi-lib to get the
    635 # options).
    636 
    637 sed -e "s:^TOP[         ]*=[    ]*\([./]*\)[    ]*$:TOP = ${ml_builddotdot}\1:" \
    638     -e "s:^MULTISRCTOP[         ]*=.*$:MULTISRCTOP = ${ml_srcdotdot}:" \
    639     -e "s:^MULTIBUILDTOP[       ]*=.*$:MULTIBUILDTOP = ${ml_builddotdot}:" \
    640     -e "s:^MULTIDIRS[   ]*=.*$:MULTIDIRS = ${multidirs}:" \
    641     -e "s:^MULTISUBDIR[         ]*=.*$:MULTISUBDIR = ${ml_subdir}:" \
    642     -e "s:^MULTIDO[     ]*=.*$:MULTIDO = $ml_do:" \
    643     -e "s:^MULTICLEAN[  ]*=.*$:MULTICLEAN = $ml_clean:" \
    644         ${Makefile} > Makefile.tem
    645 rm -f ${Makefile}
    646 mv Makefile.tem ${Makefile}
    647 
    648 # If this is the library's top level, configure each multilib subdir.
    649 # This is done at the end because this is the loop that runs configure
    650 # in each multilib subdir and it seemed reasonable to finish updating the
    651 # Makefile before going on to configure the subdirs.
    652 
    653 if [ "${ml_toplevel_p}" = yes ]; then
    654 
    655 # We must freshly configure each subdirectory.  This bit of code is
    656 # actually partially stolen from the main configure script.  FIXME.
    657 
    658 if [ -n "${multidirs}" ] && [ -z "${ml_norecursion}" ]; then
    659 
    660   if [ "${ml_verbose}" = --verbose ]; then
    661     echo "Running configure in multilib subdirs ${multidirs}"
    662     echo "pwd: `pwd`"
    663   fi
    664 
    665   ml_origdir=`pwd`
    666   ml_libdir=`echo $ml_origdir | sed -e 's,^.*/,,'`
    667   # cd to top-level-build-dir/${with_target_subdir}
    668   cd ..
    669 
    670   for ml_dir in ${multidirs}; do
    671 
    672     if [ "${ml_verbose}" = --verbose ]; then
    673       echo "Running configure in multilib subdir ${ml_dir}"
    674       echo "pwd: `pwd`"
    675     fi
    676 
    677     if [ -d ${ml_dir} ]; then true; else
    678       # ``mkdir -p ${ml_dir}'' See also mkinstalldirs.
    679       pathcomp=""
    680       for d in `echo ":${ml_dir}" | sed -ne 's/^:\//#/;s/^://;s/\// /g;s/^#/\//;p'`; do
    681         pathcomp="$pathcomp$d"
    682         case "$pathcomp" in
    683           -* ) pathcomp=./$pathcomp ;;
    684         esac
    685         if test ! -d "$pathcomp"; then
    686            echo "mkdir $pathcomp" 1>&2
    687            mkdir "$pathcomp" > /dev/null 2>&1 || lasterr=$?
    688         fi
    689         if test ! -d "$pathcomp"; then
    690            exit $lasterr
    691         fi
    692         pathcomp="$pathcomp/"
    693       done
    694     fi
    695     if [ -d ${ml_dir}/${ml_libdir} ]; then true; else mkdir ${ml_dir}/${ml_libdir}; fi
    696 
    697     # Eg: if ${ml_dir} = m68000/m68881, dotdot = ../../
    698     dotdot=../`echo ${ml_dir} | sed -e 's|[^/]||g' -e 's|/|../|g'`
    699 
    700     case ${srcdir} in
    701     ".")
    702       echo Building symlink tree in `pwd`/${ml_dir}/${ml_libdir}
    703       if [ "${with_target_subdir}" != "." ]; then
    704         ml_unsubdir="../"
    705       else
    706         ml_unsubdir=""
    707       fi
    708       (cd ${ml_dir}/${ml_libdir};
    709        ../${dotdot}${ml_unsubdir}symlink-tree ../${dotdot}${ml_unsubdir}${ml_libdir} "")
    710       if [ -f ${ml_dir}/${ml_libdir}/Makefile ]; then
    711         if [ x"${MAKE}" = x ]; then
    712           (cd ${ml_dir}/${ml_libdir}; make distclean)
    713         else
    714           (cd ${ml_dir}/${ml_libdir}; ${MAKE} distclean)
    715         fi
    716       fi
    717       ml_newsrcdir="."
    718       ml_srcdiroption=
    719       multisrctop=${dotdot}
    720       ;;
    721     *)
    722       case "${srcdir}" in
    723       /*) # absolute path
    724         ml_newsrcdir=${srcdir}
    725         ;;
    726       *) # otherwise relative
    727         ml_newsrcdir=${dotdot}${srcdir}
    728         ;;
    729       esac
    730       ml_srcdiroption="-srcdir=${ml_newsrcdir}"
    731       multisrctop=
    732       ;;
    733     esac
    734 
    735     case "${progname}" in
    736     /*)     ml_recprog=${progname} ;;
    737     *)      ml_recprog=${dotdot}${progname} ;;
    738     esac
    739 
    740     # FIXME: POPDIR=${PWD=`pwd`} doesn't work here.
    741     ML_POPDIR=`pwd`
    742     cd ${ml_dir}/${ml_libdir}
    743 
    744     if [ -f ${ml_newsrcdir}/configure ]; then
    745       ml_recprog="${ml_newsrcdir}/configure --cache-file=../config.cache"
    746     fi
    747 
    748     # find compiler flag corresponding to ${ml_dir}
    749     for i in `${CC-gcc} --print-multi-lib 2>/dev/null`; do
    750       dir=`echo $i | sed -e 's/;.*$//'`
    751       if [ "${dir}" = "${ml_dir}" ]; then
    752         flags=`echo $i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`
    753         break
    754       fi
    755     done
    756     ml_config_env='CC="${CC_}$flags" CXX="${CXX_}$flags"'
    757 
    758     if [ "${with_target_subdir}" = "." ]; then
    759         CC_=$CC' '
    760         CXX_=$CXX' '
    761     else
    762         # Create a regular expression that matches any string as long
    763         # as ML_POPDIR.
    764         popdir_rx=`echo ${ML_POPDIR} | sed 's,.,.,g'`
    765         CC_=
    766         for arg in ${CC}; do
    767           case $arg in
    768           -[BIL]"${ML_POPDIR}"/*)
    769             CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\1/p"`' ' ;;
    770           "${ML_POPDIR}"/*)
    771             CC_="${CC_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
    772           *)
    773             CC_="${CC_}${arg} " ;;
    774           esac
    775         done
    776 
    777         CXX_=
    778         for arg in ${CXX}; do
    779           case $arg in
    780           -[BIL]"${ML_POPDIR}"/*)
    781             CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(-[BIL]${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X-[BIL]${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
    782           "${ML_POPDIR}"/*)
    783             CXX_="${CXX_}"`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`' ' ;;
    784           *)
    785             CXX_="${CXX_}${arg} " ;;
    786           esac
    787         done
    788 
    789         if test "x${LD_LIBRARY_PATH+set}" = xset; then
    790           LD_LIBRARY_PATH_=
    791           for arg in `echo "$LD_LIBRARY_PATH" | tr ':' ' '`; do
    792             case "$arg" in
    793             "${ML_POPDIR}"/*)
    794               arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
    795               ;;
    796             esac
    797             if test "x$LD_LIBRARY_PATH_" != x; then
    798               LD_LIBRARY_PATH_=$LD_LIBRARY_PATH_:$arg
    799             else
    800               LD_LIBRARY_PATH_=$arg
    801             fi
    802           done
    803           ml_config_env="$ml_config_env LD_LIBRARY_PATH=$LD_LIBRARY_PATH_"
    804         fi
    805 
    806         if test "x${SHLIB_PATH+set}" = xset; then
    807           SHLIB_PATH_=
    808           for arg in `echo "$SHLIB_PATH" | tr ':' ' '`; do
    809             case "$arg" in
    810             "${ML_POPDIR}"/*)
    811               arg=`echo "X${arg}" | sed -n "s/X\\(${popdir_rx}\\).*/\\1/p"`/${ml_dir}`echo "X${arg}" | sed -n "s/X${popdir_rx}\\(.*\\)/\\1/p"`
    812               ;;
    813             esac
    814             if test "x$SHLIB_PATH_" != x; then
    815               SHLIB_PATH_=$SHLIB_PATH_:$arg
    816             else
    817               SHLIB_PATH_=$arg
    818             fi
    819           done
    820           ml_config_env="$ml_config_env SHLIB_PATH=$SHLIB_PATH_"
    821         fi
    822     fi
    823 
    824     if eval ${ml_config_env} ${ml_config_shell} ${ml_recprog} \
    825         --with-multisubdir=${ml_dir} --with-multisrctop=${multisrctop} \
    826         ${ml_arguments} ${ml_srcdiroption} ; then
    827       true
    828     else
    829       exit 1
    830     fi
    831 
    832     cd ${ML_POPDIR}
    833 
    834   done
    835 
    836   cd ${ml_origdir}
    837 fi
    838 
    839 fi # ${ml_toplevel_p} = yes
    840 fi # ${enable_multilib} = yes
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