27 lines
655 B
Rust
27 lines
655 B
Rust
//@ only-msvc
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// Tests that WS2_32.dll is not unnecessarily linked, see issue #85441
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use run_make_support::object::{self, read::Object};
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use run_make_support::rustc;
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use std::fs;
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fn main() {
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rustc().input("empty.rs").run();
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rustc().input("tcp.rs").run();
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assert!(!links_ws2_32("empty.exe"));
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assert!(links_ws2_32("tcp.exe"));
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}
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fn links_ws2_32(exe: &str) -> bool {
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let binary_data = fs::read(exe).unwrap();
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let file = object::File::parse(&*binary_data).unwrap();
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for import in file.imports().unwrap() {
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if import.library().eq_ignore_ascii_case(b"WS2_32.dll") {
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return true;
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}
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}
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false
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}
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