diff --git a/config/companion_libs/cloog.in b/config/companion_libs/cloog.in
index f094fa35..95b283cd 100644
--- a/config/companion_libs/cloog.in
+++ b/config/companion_libs/cloog.in
@@ -12,9 +12,8 @@ choice
 
 config CLOOG_V_0_18_4
     bool
-    prompt "0.18.4 (OBSOLETE)"
+    prompt "0.18.4"
     depends on ISL_V_0_12_or_later
-    depends on OBSOLETE
     select CLOOG_0_18_4_or_later
 
 config CLOOG_V_0_18_1
diff --git a/config/companion_libs/isl.in b/config/companion_libs/isl.in
index 6ba9e07e..bb2766fa 100644
--- a/config/companion_libs/isl.in
+++ b/config/companion_libs/isl.in
@@ -39,10 +39,9 @@ config ISL_V_0_16_1
 # mainline 4.9 release (4.9.4) does.
 config ISL_V_0_15
     bool
-    prompt "0.15 (OBSOLETE)"
-    depends on CC_GCC_4_9_or_later && !CC_GCC_V_linaro_4_9
+    prompt "0.15"
+    depends on CC_GCC_4_9_or_later
     select ISL_V_0_15_or_later
-    depends on OBSOLETE
 
 config ISL_V_0_14
     bool