lua: use float instead of double, reduces the gc data structure size by 4 byte => luci processes use 10% less memory

SVN-Revision: 18159

package/lua/Makefile

@@ -83,7 +83,7 @@ endef
 define Build/Configure
 endef
 
-TARGET_CFLAGS += -DLUA_USE_LINUX $(FPIC)
+TARGET_CFLAGS += -DLUA_USE_LINUX $(FPIC) -std=gnu99
 
 ifneq ($(CONFIG_USE_EGLIBC),)
   ifeq ($(CONFIG_EGLIBC_OPTION_EGLIBC_UTMP),)

package/lua/patches/010-lua-5.1.3-lnum-full-260308.patch

@@ -1887,7 +1887,7 @@ Index: lua-5.1.4/src/lnum_config.h
 +** Default number modes
 +*/
 +#if (!defined LNUM_DOUBLE) && (!defined LNUM_FLOAT) && (!defined LNUM_LDOUBLE)
-+# define LNUM_DOUBLE
++# define LNUM_FLOAT
 +#endif
 +#if (!defined LNUM_INT16) && (!defined LNUM_INT32) && (!defined LNUM_INT64)
 +# define LNUM_INT32