diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
index f86ed74..f7a84b2 100644
--- a/toolchain/toolchain-external/Config.in
+++ b/toolchain/toolchain-external/Config.in
@@ -664,8 +664,12 @@ config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_UCLIBC
 	select BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
 
 config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC
-	bool "glibc"
+	bool "glibc/eglibc"
 	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	help
+	  Note: eglibc is a variant of glibc that (among other things) can be
+	  configured to exclude parts of its features. This capability is 
+	  currently not supported.
 
 endchoice