mirror of https://github.com/rust-lang/rust
44 lines
1.7 KiB
Rust
44 lines
1.7 KiB
Rust
// It is possible, since #64882, to use the --extern flag without an explicit
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// path. In the event of two --extern flags, the explicit one with a path will take
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// priority, but otherwise, it is a more concise way of fetching specific libraries.
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// This test checks that the default priority of explicit extern flags and rlibs is
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// respected.
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// See https://github.com/rust-lang/rust/pull/64882
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//@ ignore-cross-compile
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// Reason: the compiled binary is executed
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use run_make_support::{dynamic_lib_name, rfs, run, run_fail, rust_lib_name, rustc};
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fn main() {
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rustc().input("bar.rs").crate_type("rlib").crate_type("dylib").arg("-Cprefer-dynamic").run();
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// By default, the rlib has priority over the dylib.
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rustc().input("foo.rs").arg("--extern").arg("bar").run();
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rfs::rename(dynamic_lib_name("bar"), "bar.tmp");
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run("foo");
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rfs::rename("bar.tmp", dynamic_lib_name("bar"));
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rustc().input("foo.rs").extern_("bar", rust_lib_name("bar")).arg("--extern").arg("bar").run();
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rfs::rename(dynamic_lib_name("bar"), "bar.tmp");
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run("foo");
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rfs::rename("bar.tmp", dynamic_lib_name("bar"));
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// The first explicit usage of extern overrides the second pathless --extern bar.
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rustc()
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.input("foo.rs")
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.extern_("bar", dynamic_lib_name("bar"))
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.arg("--extern")
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.arg("bar")
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.run();
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rfs::rename(dynamic_lib_name("bar"), "bar.tmp");
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run_fail("foo");
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rfs::rename("bar.tmp", dynamic_lib_name("bar"));
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// With prefer-dynamic, execution fails as it refuses to use the rlib.
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rustc().input("foo.rs").arg("--extern").arg("bar").arg("-Cprefer-dynamic").run();
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rfs::rename(dynamic_lib_name("bar"), "bar.tmp");
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run_fail("foo");
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rfs::rename("bar.tmp", dynamic_lib_name("bar"));
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}
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