move recipes/{rust,cargo} to recipes-devtools

This better matches where upstream puts compilers and development
utilities.

recipes-devtools/rust/rust-llvm.inc

@@ -0,0 +1,25 @@
+
+SUMMARY = "LLVM compiler framework (packaged with rust)"
+LICENSE = "NCSA"
+
+S = "${WORKDIR}/rustc-${PV}/src/llvm"
+
+inherit autotools
+
+EXTRA_OECONF += "--enable-targets=x86,x86_64,arm,aarch64,mips,powerpc"
+EXTRA_OECONF += "--enable-optimized"
+EXTRA_OECONF += "--disable-assertions"
+EXTRA_OECONF += "--disable-docs"
+EXTRA_OECONF += "--enable-bindings=none"
+EXTRA_OECONF += "--enable-keep-symbols"
+
+do_install_append () {
+	cd ${D}${bindir}
+	ln -s *-llc llc
+	for i in *-llvm-*; do
+		link=$(echo $i | sed -e 's/.*-llvm-\(.*\)/\1/')
+		ln -s $i llvm-$link
+	done
+}
+
+BBCLASSEXTEND = "native"