rust-lang
diff --git a/‎src/tools/compiletest/src/runtest.rs
+2 b/‎src/tools/compiletest/src/runtest.rs
+2
diff --git a/‎src/tools/run-make-support/src/lib.rs
+15-1 b/‎src/tools/run-make-support/src/lib.rs
+15-1
diff --git a/‎src/tools/tidy/src/allowed_run_make_makefiles.txt
-1 b/‎src/tools/tidy/src/allowed_run_make_makefiles.txt
-1
diff --git a/‎tests/run-make/issue-15460/Makefile
-7 b/‎tests/run-make/issue-15460/Makefile
-7
diff --git a/‎tests/run-make/issue-15460/bar.rs ‎tests/run-make/link-native-static-lib-to-dylib/bar.rs b/‎tests/run-make/issue-15460/bar.rs ‎tests/run-make/link-native-static-lib-to-dylib/bar.rs
diff --git a/‎tests/run-make/issue-15460/foo.c ‎tests/run-make/link-native-static-lib-to-dylib/foo.c b/‎tests/run-make/issue-15460/foo.c ‎tests/run-make/link-native-static-lib-to-dylib/foo.c
diff --git a/‎tests/run-make/issue-15460/foo.rs ‎tests/run-make/link-native-static-lib-to-dylib/foo.rs b/‎tests/run-make/issue-15460/foo.rs ‎tests/run-make/link-native-static-lib-to-dylib/foo.rs
diff --git a/‎tests/run-make/link-native-static-lib-to-dylib/rmake.rs
+14 b/‎tests/run-make/link-native-static-lib-to-dylib/rmake.rs
+14
@@ -3382,6 +3382,7 @@ impl<'test> TestCx<'test> {
             cmd.env("IS_MSVC", "1")
                 .env("IS_WINDOWS", "1")
                 .env("MSVC_LIB", format!("'{}' -nologo", lib.display()))
+                .env("MSVC_LIB_PATH", format!("{}", lib.display()))
                 .env("CC", format!("'{}' {}", self.config.cc, cflags))
                 .env("CXX", format!("'{}' {}", &self.config.cxx, cxxflags));
         } else {
@@ -3752,6 +3753,7 @@ impl<'test> TestCx<'test> {
             cmd.env("IS_MSVC", "1")
                 .env("IS_WINDOWS", "1")
                 .env("MSVC_LIB", format!("'{}' -nologo", lib.display()))
+                .env("MSVC_LIB_PATH", format!("{}", lib.display()))
                 // Note: we diverge from legacy run_make and don't lump `CC` the compiler and
                 // default flags together.
                 .env("CC_DEFAULT_FLAGS", &cflags)
 
@@ -55,7 +55,21 @@ pub use python::python_command;
 pub use rustc::{aux_build, bare_rustc, rustc, Rustc};
 pub use rustdoc::{bare_rustdoc, rustdoc, Rustdoc};
 
-/// [`diff`][mod@diff] is implemented in terms of the [similar] library.
+/// Implement common helpers for command wrappers. This assumes that the command wrapper is a struct
+/// containing a `cmd: Command` field and a `output` function. The provided helpers are:
+///
+/// 1. Generic argument acceptors: `arg` and `args` (delegated to [`Command`]). These are intended
+///    to be *fallback* argument acceptors, when specific helpers don't make sense. Prefer to add
+///    new specific helper methods over relying on these generic argument providers.
+/// 2. Environment manipulation methods: `env`, `env_remove` and `env_clear`: these delegate to
+///    methods of the same name on [`Command`].
+/// 3. Output and execution: `output`, `run` and `run_fail` are provided. `output` waits for the
+///    command to finish running and returns the process's [`Output`]. `run` and `run_fail` are
+///    higher-level convenience methods which waits for the command to finish running and assert
+///    that the command successfully ran or failed as expected. Prefer `run` and `run_fail` when
+///    possible.
+///
+/// Example usage:
 ///
 /// [similar]: https://github.com/mitsuhiko/similar
 pub use diff::{diff, Diff};
 
@@ -29,7 +29,6 @@ run-make/incr-foreign-head-span/Makefile
 run-make/interdependent-c-libraries/Makefile
 run-make/issue-107094/Makefile
 run-make/issue-14698/Makefile
-run-make/issue-15460/Makefile
 run-make/issue-33329/Makefile
 run-make/issue-35164/Makefile
 run-make/issue-36710/Makefile
 
@@ -0,0 +1,14 @@
+// Regression test for <https://github.com/rust-lang/rust/issues/15460>.
+
+//@ ignore-cross-compile
+
+use run_make_support::{build_native_static_lib, run, rustc};
+
+fn main() {
+    build_native_static_lib("foo");
+
+    rustc().input("foo.rs").extra_filename("-383hf8").arg("-Cprefer-dynamic").run();
+    rustc().input("bar.rs").run();
+
+    run("bar");
+}