-# It makes debugging easier if we create as symlinks the stage directories
-# gcc for stageN-gcc and stagePREV-gcc for stage(N-1). In case this is not
-# possible, however, we can resort to mv.
-AC_CACHE_CHECK([if symbolic links between directories work],
-[gcc_cv_prog_ln_s_dir],
-[if test "${LN_S}" = "ln -s" \
- && mkdir confdir.s1 \
- && ln -s confdir.s1 confdir.s2 \
- && echo timestamp1 > confdir.s1/conftest.1 \
- && cmp confdir.s1/conftest.1 confdir.s2/conftest.1 \
- && echo timestamp2 > confdir.s2/conftest.2 \
- && cmp confdir.s1/conftest.2 confdir.s1/conftest.2 \
- && rm -f confdir.s2; then
- gcc_cv_prog_ln_s_dir=yes
-else
- gcc_cv_prog_ln_s_dir=no
-fi
-rm -rf confdir.s1 confdir.s2])
-
-case ${gcc_cv_prog_ln_s_dir} in
- yes)
- CREATE_LINK_TO_DIR='ln -s $$1 $$2'
- UNDO_LINK_TO_DIR='rm -f $$1' ;;
- *)
- CREATE_LINK_TO_DIR='mv $$1 $$2'
- UNDO_LINK_TO_DIR='mv $$1 $$2' ;;
-esac
-AC_SUBST(CREATE_LINK_TO_DIR)
-AC_SUBST(UNDO_LINK_TO_DIR)
-