pin dependencies of Rust packages on the same ver

Pin the versions of different Rust component packages to the same
version to ensure smooth upgrades. Not sure how to hook the compiler
together with the shared library. Likely rust-cross will need to provide
some kind of dependency to make this happen.

recipes-devtools/rust/libstd-rs_1.10.0.bb

@@ -19,7 +19,7 @@ SRC_URI += "\
 	crate-index://crates.io/${CARGO_INDEX_COMMIT} \
 "
 
-DEPENDS += "compiler-rt"
+DEPENDS += "compiler-rt (=${PV})"
 
 RUSTLIB_DEP = ""
 inherit cargo

recipes-devtools/rust/rust_1.10.0.bb

@@ -19,7 +19,7 @@ SRC_URI += " \
 SRC_URI[rust.md5sum] = "a48fef30353fc9daa70b484b690ce5db"
 SRC_URI[rust.sha256sum] = "a4015aacf4f6d8a8239253c4da46e7abaa8584f8214d1828d2ff0a8f56176869"
 
-DEPENDS += "rust-llvm"
+DEPENDS += "rust-llvm (=${PV})"
 
 # Otherwise we'll depend on what we provide
 INHIBIT_DEFAULT_RUST_DEPS_class-native = "1"