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