Add libwebp package, else it doesn't compile with wrtX

libwebp/Makefile

@@ -0,0 +1,64 @@
+include $(TOPDIR)/rules.mk
+
+PKG_NAME:=libwebp
+PKG_VERSION:=1.1.0
+PKG_RELEASE:=3
+
+PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
+PKG_SOURCE_URL:=https://storage.googleapis.com/downloads.webmproject.org/releases/webp
+PKG_HASH:=98a052268cc4d5ece27f76572a7f50293f439c17a98e67c4ea0c7ed6f50ef043
+
+PKG_MAINTAINER:=
+PKG_LICENSE:=BSD-3-Clause
+PKG_LICENSE_FILES:=COPYING
+
+PKG_INSTALL:=1
+PKG_BUILD_PARALLEL:=1
+
+include $(INCLUDE_DIR)/package.mk
+
+define Package/libwebp
+  SECTION:=libs
+  CATEGORY:=Libraries
+  TITLE:=WebP library
+  URL:=https://www.webmproject.org
+endef
+
+define Package/libwebp/description
+  The libwebp package contains a library for the WebP format.
+endef
+
+CONFIGURE_ARGS += \
+	--enable-shared \
+	--disable-static \
+	--disable-neon-rtcd \
+	--disable-gl \
+	--disable-sdl \
+	--disable-gif \
+	--disable-jpeg \
+	--disable-png \
+	--disable-tiff \
+	--disable-wic \
+	--disable-libwebpmux \
+	--disable-libwebpdemux \
+	--disable-libwebpdecoder \
+	--disable-libwebpextras \
+	--without-pic
+
+TARGET_CFLAGS += $(FPIC) -flto
+
+define Build/InstallDev
+	$(INSTALL_DIR) $(1)/usr/include/webp
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/include/webp/* $(1)/usr/include/webp/
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libwebp* $(1)/usr/lib/
+	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/libwebp.pc $(1)/usr/lib/pkgconfig/
+endef
+
+define Package/libwebp/install
+	$(INSTALL_DIR) $(1)/usr/lib
+	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libwebp.s* $(1)/usr/lib/
+endef
+
+$(eval $(call BuildPackage,libwebp))

libwebp/patches/010-mips16.patch

@@ -0,0 +1,11 @@
+--- a/src/dsp/dsp.h
++++ b/src/dsp/dsp.h
+@@ -95,7 +95,7 @@ extern "C" {
+ #define WEBP_USE_INTRINSICS
+ #endif
+ 
+-#if defined(__mips__) && !defined(__mips64) && \
++#if defined(__mips__) && !defined(__mips16) && !defined(__mips64) && \
+     defined(__mips_isa_rev) && (__mips_isa_rev >= 1) && (__mips_isa_rev < 6)
+ #define WEBP_USE_MIPS32
+ #if (__mips_isa_rev >= 2)