diff -r c8e43e55f2ce configure
--- a/configure	Wed Feb 03 22:05:46 2016 -0600
+++ b/configure	Thu Feb 04 17:02:19 2016 +0200
@@ -6001,11 +6001,11 @@
 		# debug builds.
 		OPT="-g -O0 -Wall $STRICT_PROTO"
 	    else
-		OPT="-g $WRAP -O3 -Wall $STRICT_PROTO"
+		OPT="-g $WRAP -O3 -Wall $STRICT_PROTO -fdata-sections -ffunction-sections -Wl,--gc-sections"
 	    fi
 	    ;;
 	*)
-	    OPT="-O3 -Wall $STRICT_PROTO"
+	    OPT="-O3 -Wall $STRICT_PROTO -fdata-sections -ffunction-sections -Wl,--gc-sections"
 	    ;;
 	esac
 	case $ac_sys_system in
diff -r c8e43e55f2ce configure.ac
--- a/configure.ac	Wed Feb 03 22:05:46 2016 -0600
+++ b/configure.ac	Thu Feb 04 17:02:19 2016 +0200
@@ -1091,11 +1091,11 @@
 		# debug builds.
 		OPT="-g -O0 -Wall $STRICT_PROTO"
 	    else
-		OPT="-g $WRAP -O3 -Wall $STRICT_PROTO"
+		OPT="-g $WRAP -O3 -Wall $STRICT_PROTO -fdata-sections -ffunction-sections -Wl,--gc-sections"
 	    fi
 	    ;;
 	*)
-	    OPT="-O3 -Wall $STRICT_PROTO"
+	    OPT="-O3 -Wall $STRICT_PROTO -fdata-sections -ffunction-sections -Wl,--gc-sections"
 	    ;;
 	esac
 	case $ac_sys_system in