--- a/librsvg-2.48.8.ebuild	
+++ a/librsvg-2.48.8.ebuild	
@@ -54,6 +54,13 @@ multilib_src_configure() {
 		--enable-pixbuf-loader
 	)
 
+	if tc-is-cross-compiler; then
+		myconf+=(
+			--host=${CHOST_default}
+			RUST_TARGET="$(rust_abi)"
+		)
+	fi
+
 	if ! multilib_is_native_abi; then
 		myconf+=(
 			# Set the rust target, which can differ from CHOST