diff -r d1a8c2ae7946 -r b7c9f410704f config/libc/eglibc.in
--- a/config/libc/eglibc.in	Tue May 31 16:27:39 2011 +0200
+++ b/config/libc/eglibc.in	Tue May 31 20:55:30 2011 +0200
@@ -22,22 +22,27 @@
     bool
     prompt "2_13"
     depends on EXPERIMENTAL
+    select LIBC_EGLIBC_2_13_or_later
 
 config LIBC_EGLIBC_V_2_12
     bool
     prompt "2_12"
+    select LIBC_EGLIBC_2_12_or_later
 
 config LIBC_EGLIBC_V_2_11
     bool
     prompt "2_11"
+    select LIBC_EGLIBC_2_11_or_later
 
 config LIBC_EGLIBC_V_2_10
     bool
     prompt "2_10"
+    select LIBC_EGLIBC_2_10_or_later
 
 config LIBC_EGLIBC_V_2_9
     bool
     prompt "2_9"
+    select LIBC_EGLIBC_2_9_or_later
 
 config LIBC_EGLIBC_V_2_8
     bool
@@ -62,6 +67,7 @@
 config LIBC_EGLIBC_V_TRUNK
     bool
     prompt "'trunk'"
+    select LIBC_EGLIBC_2_13_or_later
     help
       Selecting this will export the trunk of the eglibc subversion repository.
 
@@ -82,6 +88,29 @@
     default "2_5" if LIBC_EGLIBC_V_2_5
     default "trunk" if LIBC_EGLIBC_V_TRUNK
 
+config LIBC_EGLIBC_2_13_or_later
+    bool
+    select LIBC_EGLIBC_2_12_or_later
+
+config LIBC_EGLIBC_2_12_or_later
+    bool
+    select LIBC_EGLIBC_2_11_or_later
+
+config LIBC_EGLIBC_2_11_or_later
+    bool
+    select LIBC_EGLIBC_2_10_or_later
+
+config LIBC_EGLIBC_2_10_or_later
+    bool
+    select LIBC_EGLIBC_2_9_or_later
+
+config LIBC_EGLIBC_2_9_or_later
+    bool
+    select LIBC_EGLIBC_HAS_PKGVERSION_BUGURL
+
+config LIBC_EGLIBC_HAS_PKGVERSION_BUGURL
+    bool
+
 config EGLIBC_REVISION
     string
     prompt "Revision to use"