bitflags: update to 0.8.2 and Rust 1.20 compat

0.8.2 is the last version before the breaking "flags" keyword change.

For now, no_std crates need to be rlibs because rustc complains about
missing lang items on dylibs even though it would eventually be resolved
in the final link.

Ignore pub_use_of_private_extern_crate as there exists no version with
this fixed that uses the old API.

recipes-core/bitflags/bitflags_0.8.2.bb

@@ -0,0 +1,26 @@
+DESCRIPTION = "A macro to generate structures which behave like bitflags."
+HOMEPAGE = "https://github.com/rust-lang-nursery/bitflags"
+LICENSE = "MIT | Apache-2.0"
+LIC_FILES_CHKSUM = "\
+	file://LICENSE-MIT;md5=362255802eb5aa87810d12ddf3cfedb4 \
+	file://LICENSE-APACHE;md5=1836efb2eb779966696f473ee8540542 \
+"
+
+inherit rust-bin
+
+SRC_URI = "git://github.com/rust-lang-nursery/bitflags.git;protocol=https;nobranch=1"
+SRCREV = "e30da43cac0e52fc8d0007ce99a316ec6473033e"
+
+S = "${WORKDIR}/git"
+
+LIB_SRC = "${S}/src/lib.rs"
+CRATE_TYPE = "rlib"
+RUSTFLAGS += "-A pub_use_of_private_extern_crate"
+
+do_compile () {
+	oe_compile_rust_lib
+}
+
+do_install () {
+	oe_install_rust_lib
+}