diff --git a/m4macros/xdt-features.m4 b/m4macros/xdt-features.m4
index ea0c685..43189d2 100644
--- a/m4macros/xdt-features.m4
+++ b/m4macros/xdt-features.m4
@@ -182,7 +182,11 @@ AC_DEFUN([XDT_FEATURE_LINKER_OPTS],
                                [Disable linker optimizations]),
                 [enable_linker_opts=$enableval], [enable_linker_opts=yes])
 
-  if test "x$enable_linker_opts" != "xno"; then
+  if test "x$enable_debug" = "x"; then
+    AC_MSG_ERROR([Linker optimizations cannot detect is debugging is active])
+  elif test "x$enable_debug" = "xfull" -o "x$enable_debug" = "xyes"; then
+    AC_MSG_NOTICE([Linker optimizations disabled for debugging])
+  elif test "x$enable_linker_opts" != "xno"; then
     AC_MSG_CHECKING([whether $LD accepts --as-needed])
     case `$LD --as-needed -v 2>&1 </dev/null` in
     *GNU* | *'with BFD'*)
@@ -203,6 +207,16 @@ AC_DEFUN([XDT_FEATURE_LINKER_OPTS],
       AC_MSG_RESULT([no])
       ;;
     esac
+    AC_MSG_CHECKING([whether $LD accepts -Bsymbolic-functions])
+    case `$LD -Bsymbolic-functions -v 2>&1 </dev/null` in
+    *GNU* | *'with BFD'*)
+      LDFLAGS="$LDFLAGS -Wl,-Bsymbolic-functions"
+      AC_MSG_RESULT([yes])
+      ;;
+    *)
+      AC_MSG_RESULT([no])
+      ;;
+    esac
   fi
 ])