libass: update and use GH_CONF and BUILD_DIR

src/libass.mk

@@ -3,32 +3,19 @@
 PKG             := libass
 $(PKG)_WEBSITE  := https://code.google.com/p/libass/
 $(PKG)_IGNORE   :=
-# remove autoreconf step after 0.13.1
-# https://github.com/libass/libass/issues/209
-$(PKG)_VERSION  := 0.13.1
-$(PKG)_CHECKSUM := 4aa36b1876a61cab46fc9284fee84224b9e2840fe7b3e63d96a8d32574343fe7
-$(PKG)_SUBDIR   := $(PKG)-$($(PKG)_VERSION)
-$(PKG)_FILE     := $($(PKG)_SUBDIR).tar.xz
-$(PKG)_URL      := https://github.com/libass/libass/releases/download/$($(PKG)_VERSION)/$($(PKG)_FILE)
+$(PKG)_VERSION  := 0.14.0
+$(PKG)_CHECKSUM := 8d5a5c920b90b70a108007ffcd2289ac652c0e03fc88e6eecefa37df0f2e7fdf
+$(PKG)_GH_CONF  := libass/libass/releases/latest
 $(PKG)_DEPS     := gcc fontconfig freetype fribidi harfbuzz
 
-define $(PKG)_UPDATE
-    $(WGET) -q -O- "https://api.github.com/repos/libass/libass/releases" | \
-    grep 'tag_name' | \
-    $(SED) -n 's,.*tag_name": "\([0-9][^>]*\)".*,\1,p' | \
-    $(SORT) -Vr | \
-    head -1
-endef
-
 define $(PKG)_BUILD
-    cd '$(1)' && $(LIBTOOLIZE) && autoreconf -fi
     # fontconfig is only required for legacy XP support
-    cd '$(1)' && ./configure \
+    cd '$(BUILD_DIR)' && '$(SOURCE_DIR)/configure' \
         $(MXE_CONFIGURE_OPTS) \
         --enable-fontconfig \
         --enable-harfbuzz
-    $(MAKE) -C '$(1)' -j '$(JOBS)'
-    $(MAKE) -C '$(1)' -j 1 install
+    $(MAKE) -C '$(BUILD_DIR)' -j '$(JOBS)'
+    $(MAKE) -C '$(BUILD_DIR)' -j 1 install
 
     '$(TARGET)-gcc' \
         -W -Wall -Werror -ansi -pedantic \