- luaexpat: rework build

package/luaexpat/luaexpat.mk

@@ -7,10 +7,7 @@
 LUAEXPAT_VERSION = 1.3.3
 LUAEXPAT_DIR = luaexpat-$(LUAEXPAT_VERSION)
 LUAEXPAT_SOURCE = luaexpat-$(LUAEXPAT_VERSION).tar.gz
-LUAEXPAT_SITE = https://github.com/tomasguisasola/luaexpat/archive
-
-$(DL_DIR)/$(LUAEXPAT_SOURCE):
-	$(download) $(LUAEXPAT_SITE)/v$(LUAEXPAT_VERSION).tar.gz -O $(@)
+LUAEXPAT_SITE = $(call github,tomasguisasola,luaexpat,v$(LUAEXPAT_VERSION))
 
 LUAEXPAT_DEPENDENCIES = expat lua
 
@@ -21,14 +18,16 @@ LUAEXPAT_MAKE_OPTS = \
 	PREFIX=$(TARGET_prefix) \
 	LUA_SYS_VER=$(LUA_ABIVERSION)
 
-luaexpat: $(LUAEXPAT_DEPENDENCIES) $(DL_DIR)/$(LUAEXPAT_SOURCE) | $(TARGET_DIR)
-	$(REMOVE)/$(PKG_DIR)
-	$(UNTAR)/$(PKG_SOURCE)
-	$(CHDIR)/$(PKG_DIR); \
-		$(SED) 's|^EXPAT_INC=.*|EXPAT_INC= $(TARGET_includedir)|' makefile; \
-		$(SED) 's|^CFLAGS =.*|& -L$(TARGET_libdir)|' makefile; \
-		$(SED) 's|^CC =.*|CC = $(TARGET_CC)|' makefile; \
+define LUAEXPAT_PATCH_MAKEFILE
+	$(SED) 's|^EXPAT_INC=.*|EXPAT_INC= $(TARGET_includedir)|' $(PKG_BUILD_DIR)/makefile
+	$(SED) 's|^CFLAGS =.*|& -L$(TARGET_libdir)|' $(PKG_BUILD_DIR)/makefile
+	$(SED) 's|^CC =.*|CC = $(TARGET_CC)|' $(PKG_BUILD_DIR)/makefile
+endef
+LUAEXPAT_POST_PATCH_HOOKS += LUAEXPAT_PATCH_MAKEFILE
+
+luaexpat: | $(TARGET_DIR)
+	$(call PREPARE)
+	$(CHDIR)/$($(PKG)_DIR); \
 		$($(PKG)_MAKE_ENV) $(MAKE) $($(PKG)_MAKE_OPTS); \
 		$($(PKG)_MAKE_ENV) $(MAKE) $($(PKG)_MAKE_OPTS) install
-	$(REMOVE)/$(PKG_DIR)
-	$(TOUCH)
+	$(call TARGET_FOLLOWUP)

package/luaexpat/patches/0001-restore-getcurrentbytecount.patch

@@ -0,0 +1,40 @@
+From 77cb691f781918908dfe34785f00a5ff75d5cc20 Mon Sep 17 00:00:00 2001
+From: Francois Perrad <francois.perrad@gadz.org>
+Date: Sat, 16 Feb 2019 15:56:00 +0100
+Subject: [PATCH] restore getcurrentbytecount
+
+see https://github.com/tomasguisasola/luaexpat/issues/3
+
+Fetch from: https://github.com/tomasguisasola/luaexpat/commit/0926f2d705109b7d35b721344264b39c1169e0de
+
+Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
+---
+ src/lxplib.c | 7 +++++++
+ 1 file changed, 7 insertions(+)
+
+diff --git a/luaexpat-1.3.3/src/lxplib.c b/luaexpat-1.3.3/src/lxplib.c
+index 7726913..35bec3c 100644
+--- a/src/lxplib.c
++++ b/src/lxplib.c
+@@ -538,11 +538,18 @@ static int lxp_stop (lua_State *L) {
+   return 1;
+ }
+ 
++static int lxp_getcurrentbytecount (lua_State* L) {
++  lxp_userdata *xpu = checkparser(L, 1);
++  lua_pushinteger(L, XML_GetCurrentByteCount(xpu->parser));
++  return 1;
++}
++
+ static const luaL_Reg lxp_meths[] = {
+   {"parse", lxp_parse},
+   {"close", lxp_close},
+   {"__gc", parser_gc},
+   {"pos", lxp_pos},
++  {"getcurrentbytecount", lxp_getcurrentbytecount},
+   {"setencoding", lxp_setencoding},
+   {"getcallbacks", getcallbacks},
+   {"getbase", getbase},
+-- 
+2.17.1
+

package/luaexpat/patches/luaexpat-makefile.patch

@@ -1,23 +0,0 @@
---- a/Makefile
-+++ b/Makefile
-@@ -3,15 +3,15 @@
- INSTALL		?= install
- INSTALL_PROGRAM	?= $(INSTALL)
- INSTALL_DATA	?= $(INSTALL) -m 644
--LUA_V		?= 5.1
--LUA_LDIR	?= /usr/share/lua/$(LUA_V)
--LUA_CDIR	?= /usr/lib/lua/$(LUA_V)
-+LUA_V		?= 5.2
-+LUA_LDIR	?= $(PREFIX)/share/lua/$(LUA_V)
-+LUA_CDIR	?= $(PREFIX)/lib/lua/$(LUA_V)
- T		= lxp
- LIBNAME		= $(T).so
- 
- COMMON_CFLAGS	 = -g -pedantic -Wall -O2 -fPIC -DPIC -ansi
--LUA_INC		?= -I/usr/include/lua$(LUA_V)
--EXPAT_INC	?= -I/usr/include
-+LUA_INC		?= -I$(PREFIX)/include
-+EXPAT_INC	?= -I$(PREFIX)/include
- CF		 = $(LUA_INC) $(EXPAT_INC) $(COMMON_CFLAGS) $(CFLAGS)
- 
- EXPAT_LIB	 = -lexpat