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fix(build): link proper cxx std libraries on windows-gnu{,llvm} #1880

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fix(build): link proper cxx std libraries on windows-gnu{,llvm} #1880

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8 changes: 8 additions & 0 deletions build.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -751,6 +751,7 @@ fn print_link_flags() {
} else if target.contains("apple")
|| target.contains("freebsd")
|| target.contains("openbsd")
|| target.contains("gnullvm")
{
println!("cargo:rustc-link-lib=dylib=c++");
} else if target.contains("android") {
Expand All @@ -760,6 +761,7 @@ fn print_link_flags() {
}
}
}
let target = env::var("TARGET").unwrap();
let target_os = env::var("CARGO_CFG_TARGET_OS").unwrap();
let target_env = env::var("CARGO_CFG_TARGET_ENV").unwrap();

Expand All @@ -776,6 +778,12 @@ fn print_link_flags() {
} else {
println!("cargo:rustc-link-lib=dylib=msvcprt");
}
} else if target.ends_with("windows-gnu") {
// Clang-based toolchains don't use separate atomic library
println!("cargo:rustc-link-lib=atomic")
} else if target.ends_with("windows-gnullvm") {
// Clang usually works with Win32 threads, so we need to link pthread explicitly
println!("cargo:rustc-link-lib=pthread")
}
}

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