boehm-gc/configure.host

   1 # configure.host
   2
   3 # This shell script handles all host based configuration for the garbage
   4 # collector.
   5 # It sets various shell variables based on the the host and the
   6 # configuration options.  You can modify this shell script without
   7 # needing to rerun autoconf.
   8
   9 # This shell script should be invoked as
  10 #   . configure.host
  11 # If it encounters an error, it will exit with a message.
  12
  13 # It uses the following shell variables:
  14 #   host                The configuration host
  15 #   host_cpu            The configuration host CPU
  16 #   target_optspace     --enable-target-optspace ("yes", "no", "")
  17 #   GCC                 should be "yes" if using gcc
  18
  19 # It sets the following shell variables:
  20 #   gc_cflags   Special CFLAGS to use when building
  21 #   gc_use_mmap  Set to "yes" on platforms where mmap should be used instead
  22 #                of sbrk. This will define USE_MMAP.
  23
  24 gc_cflags=""
  25 gc_use_mmap=
  26
  27 # We should set -fexceptions if we are using gcc and might be used
  28 # inside something like gcj.  This is the zeroth approximation:
  29 if test :"$GCC": = :yes: ; then
  30     gc_cflags="${gc_cflags} -fexceptions"
  31 else
  32     case "$host" in
  33         hppa*-*-hpux* )
  34         if test :$GCC: != :"yes": ; then
  35             gc_cflags="${gc_flags} +ESdbgasm"
  36         fi
  37         # :TODO: actaully we should check using Autoconf if
  38         #     the compiler supports this option.
  39         ;;
  40     esac
  41 fi
  42
  43 case "${host}" in
  44   *-linux*)
  45     gc_use_mmap=yes
  46     ;;
  47 esac
  48
  49 case "${target_optspace}:${host}" in
  50   yes:*)
  51     gc_cflags="${gc_cflags} -Os"
  52     ;;
  53   :m32r-* | :d10v-* | :d30v-*)
  54     gc_cflags="${gc_cflags} -Os"
  55     ;;
  56   no:* | :*)
  57     # Nothing.
  58     ;;
  59 esac
  60
  61 # Set any host dependent compiler flags.
  62 # THIS TABLE IS SORTED.  KEEP IT THAT WAY.
  63
  64 case "${host}" in
  65   mips-tx39-*|mipstx39-unknown-*)
  66         gc_cflags="${gc_cflags} -G 0"
  67         ;;
  68   *)
  69         ;;
  70 esac