diff --git a/makefile b/makefile
index e9b302c711a..e96640a0d05 100644
--- a/makefile
+++ b/makefile
@@ -49,6 +49,7 @@
 # MAP = 1
 # PROFILE = 1
 # ARCHOPTS =
+# OPT_FLAGS =
 # LDOPTS =
 
 # USE_SYSTEM_LIB_EXPAT = 1
@@ -401,6 +402,10 @@ ifdef ARCHOPTS
 PARAMS += --ARCHOPTS='$(ARCHOPTS)'
 endif
 
+ifdef OPT_FLAGS
+PARAMS += --OPT_FLAGS='$(OPT_FLAGS)'
+endif
+
 ifdef MAP
 PARAMS += --MAP='$(MAP)'
 endif
diff --git a/scripts/genie.lua b/scripts/genie.lua
index ba639398c64..702ae917064 100644
--- a/scripts/genie.lua
+++ b/scripts/genie.lua
@@ -168,6 +168,11 @@ newoption {
 	description = "ARCHOPTS.",
 }
 
+newoption {
+	trigger = "OPT_FLAGS",
+	description = "OPT_FLAGS.",
+}
+
 newoption {
 	trigger = "LDOPTS",
 	description = "Additional linker options",
@@ -739,6 +744,11 @@ if _OPTIONS["OPTIMIZE"] then
 			_OPTIONS["ARCHOPTS"]
 		}
 	end
+	if _OPTIONS["OPT_FLAGS"] then
+		buildoptions {
+			_OPTIONS["OPT_FLAGS"]
+		}
+	end
 	if _OPTIONS["LTO"]=="1" then
 -- -flto=4 -> 4 threads
 		buildoptions {