diff --git a/srcpkgs/rust/patches/lzma-sys-cross-ldflags.patch b/srcpkgs/rust/patches/lzma-sys-cross-ldflags.patch
new file mode 100644
index 0000000000..82a2fc1886
--- /dev/null
+++ b/srcpkgs/rust/patches/lzma-sys-cross-ldflags.patch
@@ -0,0 +1,11 @@
+This allows lzma-sys to build in a cross-compiling environment.
+--- rustc-1.33.0-src/vendor/lzma-sys/build.rs
++++ rustc-1.33.0-src/vendor/lzma-sys/build.rs
+@@ -101,6 +101,7 @@
+         }
+         cmd.env("CC", compiler.path())
+            .env("CFLAGS", cflags)
++           .env("LDFLAGS", "")
+            .current_dir(&dst.join("build"))
+            .arg(sanitize_sh(&src.join("configure")));
+         cmd.arg(format!("--prefix={}", sanitize_sh(&dst)));
diff --git a/srcpkgs/rust/template b/srcpkgs/rust/template
index 639526a958..433f8f20dc 100644
--- a/srcpkgs/rust/template
+++ b/srcpkgs/rust/template
@@ -1,7 +1,7 @@
 # Template file for 'rust'
 pkgname=rust
 version=1.34.0
-revision=2
+revision=3
 _rust_dist_version=1.33.0
 _cargo_dist_version=0.33.0
 # NB. if you push any(!) new version, don't forget to put a build
@@ -114,6 +114,13 @@ post_extract() {
 	fi
 }
 
+# we need this because cargo verifies checksums of all files in vendor
+# crates when it builds and gives us no way to override or update the
+# file sanely... so just clear out the file list
+_clear_vendor_checksums() {
+	sed -i 's/\("files":{\)[^}]*/\1/' vendor/$1/.cargo-checksum.json
+}
+
 post_patch() {
 	if [ "$build_option_internal_llvm" ]; then
 		# patches for Rust's bundled LLVM
@@ -133,6 +140,10 @@ post_patch() {
 	fi
 
 	sed -i /LD_LIBRARY_PATH/d src/bootstrap/bootstrap.py
+
+	# clear out all the checksum nonsense of patched vendor crates
+	_clear_vendor_checksums libc
+	_clear_vendor_checksums lzma-sys
 }
 
 do_configure() {
@@ -148,6 +159,7 @@ do_configure() {
 		--disable-rpath
 		--disable-docs
 		--disable-codegen-tests
+		--enable-vendor
 	"
 
 	if ! [ "$build_option_internal_llvm" ]; then
@@ -199,7 +211,7 @@ pre_build() {
 # of the cross host.
 # Unset LDFLAGS, otherwise cross builds to the same arch will fail
 do_build() {
-	env CFLAGS_${RUST_BUILD}="${CFLAGS_host}" LDFLAGS=''  make ${makejobs} ${make_build_args}
+	env CFLAGS_${RUST_BUILD}="${CFLAGS_host}" make ${makejobs} ${make_build_args}
 }
 
 do_install() {