mogenson commented on a change in pull request #1075:
URL: 
https://github.com/apache/incubator-nuttx-apps/pull/1075#discussion_r828320722



##########
File path: interpreters/lua/Makefile
##########
@@ -0,0 +1,133 @@
+############################################################################
+# apps/interpreters/lua/Makefile
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.  The
+# ASF licenses this file to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance with the
+# License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations
+# under the License.
+#
+############################################################################
+
+include $(APPDIR)/Make.defs
+
+# Lua built-in application info
+
+PROGNAME  = lua
+PRIORITY  = $(CONFIG_INTERPRETER_LUA_PRIORITY)
+STACKSIZE = $(CONFIG_INTERPRETER_LUA_STACKSIZE)
+MODULE    = $(CONFIG_INTERPRETERS_LUA)
+
+# Lua library
+
+LUA_VERSION  = $(patsubst "%",%,$(strip $(CONFIG_INTERPRETER_LUA_VERSION)))
+LUA_TARBALL  = lua-$(LUA_VERSION).tar.gz
+LUA_UNPACK   = lua-$(LUA_VERSION)
+LUA_URL_BASE = http://www.lua.org/ftp
+LUA_URL      = $(LUA_URL_BASE)/$(LUA_TARBALL)
+LUA_SRC      = $(LUA_UNPACK)/src
+
+MAINSRC      = $(LUA_SRC)/lua.c
+CORELIB_SRCS = $(filter-out $(LUA_SRC)/lauxlib.c,$(wildcard $(LUA_SRC)/*lib.c))
+EXCLUDE_SRCS = $(MAINSRC) $(CORELIB_SRCS) $(LUA_SRC)/luac.c $(LUA_SRC)/linit.c
+CSRCS        = $(filter-out $(EXCLUDE_SRCS),$(wildcard $(LUA_SRC)/*.c))
+CSRCS       += nuttx_linit.c
+
+CFLAGS += -DLUA_MAXINPUT=$(CONFIG_INTERPRETER_LUA_IOBUFSIZE)
+CFLAGS += -DLUA_PROGNAME=\"$(PROGNAME)\"
+
+ifeq ($(CONFIG_INTERPRETER_LUA_32BITS),y)
+CFLAGS += -DLUA_32BITS

Review comment:
       `LUA_32BITS` is used in `luaconf.h` to set the size for integers and 
floats in Lua: https://github.com/lua/lua/blob/v5.4.0/luaconf.h#L139-L149
   
   It looks like Lua respects the `_FILE_OFFSET_BITS` macro. It only sets this 
value is `LUA_32BITS` is not defined and if `_FILE_OFFSET_BITS` is not already 
defined. I don't think any change is required.
   
   If you prefer, we can not select `LIBC_FLOATINGPOINT` and instead list the 
optional requirement in the README. One side effect, is without 
`LIBC_FLOATINGPOINT` you will not be able to print floating point numbers. For 
example:
   ```lua
   > print(1)
   1
   > print(0.5)
   *float*
   ```




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