+build: Move optimization flags into a separate variable
+
+Isolate optimization related compiler flags from CFLAGS and move them into a
+separate COPTS variable so that it is easier to override optimizations from
+the environment.
+
+Signed-off-by: Jo-Philipp Wich <jow@openwrt.org>
+
--- a/pppd/plugins/radius/Makefile.linux
+++ b/pppd/plugins/radius/Makefile.linux
@@ -12,7 +12,8 @@ VERSION = $(shell awk -F '"' '/VERSION/