message: ci: Set DEPENDS_DIR when setting BASE_ROOT_DIR
  The depends dir can not be overwritten by a FILE_ENV file. Also, a FILE_ENV file
  might depend on the DEPENDS_DIR value. Thus, set it before reading FILE_ENV.
  This commit does not change behavior, but is required for later commits.
  Can be reviewed with --color-moved=dimmed-zebra
diff: @@ -11,6 +11,9 @@ export LC_ALL=C.UTF-8
  # This is where the depends build is done.
  BASE_ROOT_DIR=$( cd "$( dirname "${BASH_SOURCE[0]}" )"/../../ >/dev/null 2>&1 && pwd )
  export BASE_ROOT_DIR
  +# The depends dir.
  +# This folder exists on the ci host and ci guest. Changes are propagated back and forth.
  +export DEPENDS_DIR=${DEPENDS_DIR:-$BASE_ROOT_DIR/depends}
  echo "Setting specific values in env"
  if [ -n "${FILE_ENV}" ]; then
  @@ -56,9 +59,6 @@ export CCACHE_COMPRESS=${CCACHE_COMPRESS:-1}
  # The cache dir.
  # This folder exists on the ci host and ci guest. Changes are propagated back and forth.
  export CCACHE_DIR=${CCACHE_DIR:-$BASE_SCRATCH_DIR/.ccache}
  -# The depends dir.
  -# This folder exists on the ci host and ci guest. Changes are propagated back and forth.
  -export DEPENDS_DIR=${DEPENDS_DIR:-$BASE_ROOT_DIR/depends}
  # Folder where the build result is put (bin and lib).
  export BASE_OUTDIR=${BASE_OUTDIR:-$BASE_SCRATCH_DIR/out/$HOST}
  # Folder where the build is done (dist and out-of-tree build).
  