esac
]) []dnl # _GCC_TOPLEV_NONCANONICAL_TARGET
+dnl ####
+dnl # ACX_NONCANONICAL_BUILD
+dnl # Like underscored version, but AC_SUBST's.
+AC_DEFUN([ACX_NONCANONICAL_BUILD],
+[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_BUILD]) []dnl
+AC_SUBST(build_noncanonical)
+]) []dnl # ACX_NONCANONICAL_BUILD
+
+dnl ####
+dnl # ACX_NONCANONICAL_HOST
+dnl # Like underscored version, but AC_SUBST's.
+AC_DEFUN([ACX_NONCANONICAL_HOST],
+[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_HOST]) []dnl
+AC_SUBST(host_noncanonical)
+]) []dnl # ACX_NONCANONICAL_HOST
+
+dnl ####
+dnl # ACX_NONCANONICAL_TARGET
+dnl # Like underscored version, but AC_SUBST's.
+AC_DEFUN([ACX_NONCANONICAL_TARGET],
+[AC_REQUIRE([_GCC_TOPLEV_NONCANONICAL_TARGET]) []dnl
+AC_SUBST(target_noncanonical)
+]) []dnl # ACX_NONCANONICAL_TARGET
+
dnl ####
dnl # GCC_TOPLEV_SUBDIRS
dnl # GCC & friends build 'build', 'host', and 'target' tools. These must
fi
])
+dnl See if hard links work and if not, try to substitute $1 or simple copy.
+AC_DEFUN([ACX_PROG_LN],
+[AC_MSG_CHECKING(whether ln works)
+AC_CACHE_VAL(acx_cv_prog_LN,
+[rm -f conftestdata_t
+echo >conftestdata_f
+if ln conftestdata_f conftestdata_t 2>/dev/null
+then
+ acx_cv_prog_LN=ln
+else
+ acx_cv_prog_LN=no
+fi
+rm -f conftestdata_f conftestdata_t
+])dnl
+if test $acx_cv_prog_LN = no; then
+ LN="ifelse([$1],,cp,[$1])"
+ AC_MSG_RESULT([no, using $LN])
+else
+ LN="$acx_cv_prog_LN"
+ AC_MSG_RESULT(yes)
+fi
+AC_SUBST(LN)dnl
+])
+