CONFIGURE: Properly pass disabled features from the awk script

configure

@@ -4124,9 +4124,19 @@ append_var MODULES "backends/platform/$_backend"
 # Check if specific components are not used by enabled engines and disable them
 #
 echo "Checking for unused components..."
+rm -f engines.awk.out
 awk -f "$_srcdir/engines.awk" -v _pass=pass1 < /dev/null
 echo "...check complete"
 
+eval "`. engines.awk.out`"
+
+for f in $_features_disabled; do
+    echo $f  # XXXX
+    set_var $(get_var _feature_${f}_settings) "no"
+done
+
+rm -f engines.awk.out
+
 #
 # Check for pkg-config
 #

engines.awk

@@ -69,7 +69,7 @@ function have_feature(feature) {
 function disable_feature(feature) {
 	ENVIRON["_feature_" feature "_settings"] = "no"
 
-	ENVIRON["_features_disabled"] = ENVIRON["_features_disabled"] feature " "
+	_features_disabled = _features_disabled feature " "
 }
 
 #
@@ -374,12 +374,14 @@ END {
 				if (have_feature(components[c])) {
 					if (get_feature_state(components[c]) == "yes") {
 						disable_feature(components[c])
-						print("   Feature '" components[c] "' is disabled as unused")
+						print("   Feature '" components[c] "' is disabled as unused by enabled engines")
 					}
 				}
 			}
 		}
 
+		print("#!/bin/sh\necho _features_disabled='" _features_disabled "'") >> "engines.awk.out"
+
 		exit 0
 	}