Build Lua without patch

recipes/lua/patch

-diff -rupN lua/src/Makefile lua-redox/src/Makefile
---- lua/src/Makefile	2015-05-27 04:10:11.000000000 -0700
-+++ lua-redox/src/Makefile	2016-07-27 18:08:54.167232304 -0700
-@@ -4,9 +4,9 @@
- # == CHANGE THE SETTINGS BELOW TO SUIT YOUR ENVIRONMENT =======================
-
- # Your platform. See PLATS for possible values.
--PLAT= none
-+PLAT= posix
-
--CC= gcc -std=gnu99
-+CC:= $(CC) -std=gnu99
- CFLAGS= -O2 -Wall -Wextra -DLUA_COMPAT_5_2 $(SYSCFLAGS) $(MYCFLAGS)
- LDFLAGS= $(SYSLDFLAGS) $(MYLDFLAGS)
- LIBS= -lm $(SYSLIBS) $(MYLIBS)

recipes/lua/recipe.sh

@@ -13,7 +13,7 @@ function recipe_update {
 }
 
 function recipe_build {
-    make generic
+    make generic CC="$CC -std=gnu99"
     return 1
 }