chiark - git - mdw - mdw-cross/blob - src/cross.in

   1 #! /bin/sh -e
   2
   3 case $# in
   4   0) echo 2>&1 "usage: ${0##*/} ENV [CMD [ARGS ...]]"; exit 2 ;;
   5 esac
   6 env=$1; shift
   7 case $# in
   8   0) set -- "$SHELL" ;;
   9 esac
  10
  11 : ${CROSSDIR=@crossdir@}; export CROSSDIR
  12
  13 if ! [ -f "$CROSSDIR/etc/$env-setup.sh" ]; then
  14   echo 2>&1 "${0##*/}: cross environment \`$env' unknown"; exit 2
  15 fi
  16
  17 p=$PATH CROSS_COMPILER_PREFIX=""
  18 while :; do
  19   case $p in
  20     "") break ;;
  21     *:*) d=${p%%:*} p=${p#*:} ;;
  22     *) d=$p p="" ;;
  23   esac
  24   if [ -e "$d/ccache" ]; then CROSS_COMPILER_PREFIX="ccache "; break; fi
  25 done
  26 export CROSS_COMPILER_PREFIX
  27
  28 CROSS_BUILDENV=$env; export CROSS_BUILDENV
  29
  30 if [ -f "$CROSSDIR/etc/$env-config.site" ]
  31 then CONFIG_SITE=$CROSSDIR/etc/$env-config.site
  32 else CONFIG_SITE=$CROSSDIR/etc/common-cross-config.site
  33 fi
  34 export CONFIG_SITE
  35
  36 CROSS_PREFIX=$CROSSDIR/inst.$env; export CROSS_PREFIX
  37 . "$CROSSDIR/etc/$env-setup.sh"
  38
  39 case ${CROSS_ARCH+t} in
  40   t) ;;
  41   *) echo 2>&1 "${0##*/}: setup script didn't set \`CROSS_ARCH'"; exit 2 ;;
  42 esac
  43 export CROSS_ARCH
  44
  45 case :$PATH: in
  46   *:"$CROSSDIR/tools:"*) ;;
  47   *) PATH=$CROSSDIR/tools:$PATH ;;
  48 esac
  49
  50 exec "$@"