Ship all the necessary webp dependencies

Newer versions depend on the internal libsharpyuv, ship it.

Fix koreader/koreader#10679 (comment)

Makefile.defs

@@ -831,6 +831,8 @@ LIBWEBP_LIB_EXT=$(if $(WIN32),-7.dll,$(if $(DARWIN),.7.dylib,.so.7))
 LIBWEBP_LIB=$(OUTPUT_DIR)/libs/libwebp$(LIBWEBP_LIB_EXT)
 LIBWEBPDEMUX_LIB_EXT=$(if $(WIN32),-2.dll,$(if $(DARWIN),.2.dylib,.so.2))
 LIBWEBPDEMUX_LIB=$(OUTPUT_DIR)/libs/libwebpdemux$(LIBWEBPDEMUX_LIB_EXT)
+LIBSHARPYUV_LIB_EXT=$(if $(WIN32),-0.dll,$(if $(DARWIN),.0.dylib,.so.0))
+LIBSHARPYUV_LIB=$(OUTPUT_DIR)/libs/libsharpyuv$(LIBSHARPYUV_LIB_EXT)
 LIBWEBP_BUILD_DIR=$(THIRDPARTY_DIR)/libwebp/build/$(MACHINE)
 LIBWEBP_DIR=$(CURDIR)/$(LIBWEBP_BUILD_DIR)/libwebp-prefix/src/libwebp-build
 

Makefile.third

@@ -172,6 +172,7 @@ $(LIBWEBP_LIB) $(LIBWEBP_DIR): $(THIRDPARTY_DIR)/libwebp/*.*
 		$(CMAKE_MAKE_PROGRAM) $(CMAKE_MAKE_PROGRAM_FLAGS)
 	cp -fL $(LIBWEBP_DIR)/lib/$(notdir $(LIBWEBP_LIB)) $@
 	cp -fL $(LIBWEBP_DIR)/lib/$(notdir $(LIBWEBPDEMUX_LIB)) $(LIBWEBPDEMUX_LIB)
+	cp -fL $(LIBWEBP_DIR)/lib/$(notdir $(LIBSHARPYUV_LIB)) $(LIBSHARPYUV_LIB)
 	chmod 755 $@
 
 $(LUNASVG_LIB): $(THIRDPARTY_DIR)/lunasvg/*.*