diff options
| -rw-r--r-- | tests/run-make/link-dedup/rmake.rs | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/tests/run-make/link-dedup/rmake.rs b/tests/run-make/link-dedup/rmake.rs index 9bff3a4b44c..6075f310954 100644 --- a/tests/run-make/link-dedup/rmake.rs +++ b/tests/run-make/link-dedup/rmake.rs @@ -5,20 +5,37 @@ // Without the --cfg flag, there should be a single -ltesta, no more, no less. // See https://github.com/rust-lang/rust/pull/84794 -//@ ignore-msvc +use std::fmt::Write; -use run_make_support::rustc; +use run_make_support::{is_msvc, rustc}; fn main() { rustc().input("depa.rs").run(); rustc().input("depb.rs").run(); rustc().input("depc.rs").run(); + let output = rustc().input("empty.rs").cfg("bar").run_fail(); - output.assert_stderr_contains(r#""-ltesta" "-ltestb" "-ltesta""#); - let output = rustc().input("empty.rs").run_fail(); - output.assert_stderr_contains(r#""-ltesta""#); - let output = rustc().input("empty.rs").run_fail(); - output.assert_stderr_not_contains(r#""-ltestb""#); + output.assert_stderr_contains(needle_from_libs(&["testa", "testb", "testa"])); + let output = rustc().input("empty.rs").run_fail(); - output.assert_stderr_not_contains(r#""-ltesta" "-ltesta" "-ltesta""#); + output.assert_stderr_contains(needle_from_libs(&["testa"])); + output.assert_stderr_not_contains(needle_from_libs(&["testb"])); + output.assert_stderr_not_contains(needle_from_libs(&["testa", "testa", "testa"])); + // Adjacent identical native libraries are no longer deduplicated if + // they come from different crates (https://github.com/rust-lang/rust/pull/103311) + // so the following will fail: + //output.assert_stderr_not_contains(needle_from_libs(&["testa", "testa"])); +} + +fn needle_from_libs(libs: &[&str]) -> String { + let mut needle = String::new(); + for lib in libs { + if is_msvc() { + let _ = needle.write_fmt(format_args!(r#""{lib}.lib" "#)); + } else { + let _ = needle.write_fmt(format_args!(r#""-l{lib}" "#)); + } + } + needle.pop(); // remove trailing space + needle } |