luastruct: openwrt packaging of luastruct

The upstream package has no top level directory in the tarball, and
needs patches to properly allow specifying the C compiler and include
paths, but otherwise straightforward.

luastruct/Makefile

@@ -0,0 +1,56 @@
+#
+# Copyright (C) 2009-2013 OpenWrt.org
+#
+# This is free software, licensed under the GNU General Public License v2.
+# See /LICENSE for more information.
+#
+
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=luastruct
+PKG_VERSION:=0.2
+PKG_RELEASE:=1
+
+PKG_SOURCE:=struct-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=http://www.inf.puc-rio.br/~roberto/struct
+PKG_MD5_SUM:=99384bf1f54457ec9f796ad0b539d19c
+# Workaround original tarball not having a parent directory
+PKG_BUILD_DIR:=$(BUILD_DIR)/$(PKG_NAME)-$(PKG_VERSION)
+PKG_UNPACK:=gzip -dc $(DL_DIR)/$(PKG_SOURCE) | $(TAR) -C $(PKG_BUILD_DIR) -xf -
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/$(PKG_NAME)
+  SUBMENU:=Lua
+  SECTION:=lang
+  CATEGORY:=Languages
+  TITLE:=LuaStruct
+  URL:=http://www.inf.puc-rio.br/~roberto/struct/
+  DEPENDS:=+lua
+  MAINTAINER:=Karl Palsson <karlp@remake.is>
+endef
+
+define Package/$(PKG_NAME)/description
+  This library offers basic facilities to convert Lua values to and from
+  C structs. Its main functions are struct.pack, which packs multiple Lua
+  values into a struct-like string; and struct.unpack, which unpacks
+  multiple Lua values from a given struct-like string.
+endef
+
+define Build/Configure
+endef
+
+define Build/Compile
+	$(MAKE) -C $(PKG_BUILD_DIR)/ \
+		LUADIR="$(STAGING_DIR)/usr/include/" \
+		CC="$(TARGET_CC) $(TARGET_CFLAGS) $(TARGET_CPPFLAGS) -std=gnu99" \
+		LD="$(TARGET_CROSS)ld -shared"
+endef
+
+
+define Package/$(PKG_NAME)/install
+	$(INSTALL_DIR) $(1)/usr/lib/lua
+	$(INSTALL_BIN) $(PKG_BUILD_DIR)/struct.so $(1)/usr/lib/lua
+endef
+
+$(eval $(call BuildPackage,$(PKG_NAME)))

luastruct/patches/001-remove-hardcoded-paths.patch

@@ -0,0 +1,17 @@
+--- a/makefile	2012-07-04 15:55:36.000000000 +0000
++++ b/makefile  2014-03-10 18:47:03.694896629 +0000
+@@ -1,6 +1,5 @@
+ # point it to where the compiler can find the Lua header files (lua.h, etc.)
+ # LUADIR = ../lua
+-LUADIR = /usr/include/lua5.1/
+
+ # define your own "large" integer type; not defining a proper type
+ # will default to 'long', which may cause problems with 'size_t'
+@@ -17,7 +16,6 @@
+         -Wwrite-strings
+
+ CFLAGS = -D_POSIX_SOURCE $(CWARNS) $(INTTYPE) -O2 -I$(LUADIR)
+-CC = gcc
+
+ struct.so: struct.c makefile
+ 	$(CC) $(CFLAGS) -shared -fpic -o struct.so struct.c