cfg-ml-pos.in

   1 # Configure fragment invoked in the post-target section for subdirs
   2 # wanting multilib support.
   3 # The intent is to keep as much of this in one place as possible (and out
   4 # of each subdirectory, eg: newlib, libio, etc.) until the right way to do
   5 # this (ha ha) is decided upon.
   6
   7 # Only do this if --enable-multilib.
   8
   9 if [ "${enable_multilib}" = yes ]; then
  10
  11 if [ -z "${with_multisubdir}" ]; then
  12   multisubdir=
  13 else
  14   multisubdir="/${with_multisubdir}"
  15   dotdot=`echo ${with_multisubdir} | sed -e 's:[^/]*:..:g'`
  16   # TOP is used by newlib and should not be used elsewhere for this purpose.
  17   # MULTITOP is the proper one to use.
  18   # FIXME: newlib needs to be updated to use MULTITOP so we can delete TOP.
  19   # Newlib may wish to continue to use TOP for its own purposes of course.
  20   sed -e "s:^TOP[       ]*=[    ]*\([./]*\)[    ]*$:TOP = ${dotdot}/\1:" \
  21       -e "s:^MULTITOP[  ]*=.*$:MULTITOP = ${dotdot}:" \
  22         ${Makefile} > Makefile.tem
  23   rm -f ${Makefile}
  24   mv Makefile.tem ${Makefile}
  25 fi
  26
  27 # MULTIDIRS is non-empty for the cpu top level Makefile (eg: newlib/Makefile)
  28 # and lists the subdirectories to recurse into.
  29 # MULTISUBDIR is non-empty in each cpu subdirectory's Makefile
  30 # (eg: newlib/h8300h/Makefile) and is the installed subdirectory name with
  31 # a leading '/'.
  32 # MULTIDO is used for targets like all, install, and check where
  33 # $(FLAGS_TO_PASS) augmented with the subdir's compiler option is needed.
  34 # MULTICLEAN is used for the *clean targets.
  35 #
  36 # ??? It is possible to merge MULTIDO and MULTICLEAN into one.  They are
  37 # currently kept separate because we don't want the *clean targets to require
  38 # the existence of the compiler (which MULTIDO currently requires) and
  39 # therefore we'd have to record the directory options as well as names
  40 # (currently we just record the names and use --print-multi-lib to get the
  41 # options).
  42
  43 sed -e "s:^MULTIDIRS[   ]*=.*$:MULTIDIRS = ${multidirs}:" \
  44     -e "s:^MULTISUBDIR[         ]*=.*$:MULTISUBDIR = ${multisubdir}:" \
  45     -e 's:^MULTIDO[     ]*=.*$:MULTIDO = $(MAKE):' \
  46     -e 's:^MULTICLEAN[  ]*=.*$:MULTICLEAN = $(MAKE):' \
  47         ${Makefile} > Makefile.tem
  48 rm -f ${Makefile}
  49 mv Makefile.tem ${Makefile}
  50
  51 # ??? May wish to add a check to avoid appending this to Makefiles that
  52 # don't need it.  It's not necessary, but is cleaner.
  53
  54 cat > Multi.tem <<\EOF
  55
  56 # FIXME: There should be an @-sign in front of the `if'.
  57 # Leave out until this is tested a bit more.
  58 multi-do:
  59         if [ -z "$(MULTIDIRS)" ]; then \
  60           true; \
  61         else \
  62           rootpre=`pwd`/; export rootpre; \
  63           srcrootpre=`cd $(srcdir); pwd`/; export srcrootpre; \
  64           compiler="$(CC)"; \
  65           for i in `$${compiler} --print-multi-lib 2>/dev/null`; do \
  66             dir=`echo $$i | sed -e 's/;.*$$//'`; \
  67             if [ "$${dir}" = "." ]; then \
  68               true; \
  69             else \
  70               if [ -d $${dir} ]; then \
  71                 flags=`echo $$i | sed -e 's/^[^;]*;//' -e 's/@/ -/g'`; \
  72                 if (cd $${dir}; $(MAKE) $(FLAGS_TO_PASS) \
  73                                 CFLAGS="$(CFLAGS) $${flags}" \
  74                                 CXXFLAGS="$(CXXFLAGS) $${flags}" \
  75                                 LIBCFLAGS="$(LIBCFLAGS) $${flags}" \
  76                                 LIBCXXFLAGS="$(LIBCXXFLAGS) $${flags}" \
  77                                 $(DO)); then \
  78                   true; \
  79                 else \
  80                   exit 1; \
  81                 fi; \
  82               else true; \
  83               fi; \
  84             fi; \
  85           done; \
  86         fi
  87
  88 # FIXME: There should be an @-sign in front of the `if'.
  89 # Leave out until this is tested a bit more.
  90 multi-clean:
  91         if [ -z "$(MULTIDIRS)" ]; then \
  92           true; \
  93         else \
  94           for dir in Makefile $(MULTIDIRS); do \
  95             if [ -f ./$$dir/Makefile ]; then \
  96               if (cd ./$$dir; $(MAKE) $(FLAGS_TO_PASS) $(DO)); \
  97               then true; \
  98               else exit 1; \
  99               fi; \
 100             else true; \
 101             fi; \
 102           done; \
 103         fi
 104 EOF
 105
 106 cat ${Makefile} Multi.tem > Makefile.tem
 107 rm -f ${Makefile} Multi.tem
 108 mv Makefile.tem ${Makefile}
 109
 110 fi # "${enable_multilib}" = yes