diff --git a/config/toolchain.in b/config/toolchain.in
index 07110e49..ca796918 100644
--- a/config/toolchain.in
+++ b/config/toolchain.in
@@ -2,6 +2,12 @@ menu "Toolchain options"
 
 comment "General toolchain options"
 
+config FORCE_SYSROOT
+    bool
+    default y if !OBSOLETE
+    default n if OBSOLETE
+    select USE_SYSROOT
+
 config USE_SYSROOT
     bool
     prompt "Use sysroot'ed toolchain"