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Handle multiple find results in wasi libc build

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Richard Feldman 2022-05-15 21:26:20 -04:00
parent c90fc98524
commit 262b2fd24e
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1 changed files with 7 additions and 8 deletions
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15
wasi-libc-sys/build.rs
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@ -32,15 +32,14 @@ fn main() {
);
// Find the libc.a and compiler_rt.o files that Zig wrote (as a side-effect of compiling the dummy program)
let find_libc_output = run_command(Path::new("."), "find", [&zig_cache_dir, "-name", "libc.a"]);
let zig_libc_path = find_libc_output.trim(); // get rid of a newline
let cwd = std::env::current_dir().unwrap();
let find_libc_output = run_command(&cwd, "find", [&zig_cache_dir, "-name", "libc.a"]);
// If `find` printed multiple results, take the first.
let zig_libc_path = find_libc_output.split("\n").next().unwrap();
let find_crt_output = run_command(
Path::new("."),
"find",
[&zig_cache_dir, "-name", "compiler_rt.o"],
);
let zig_crt_path = find_crt_output.trim(); // get rid of a newline
let find_crt_output = run_command(&cwd, "find", [&zig_cache_dir, "-name", "compiler_rt.o"]);
// If `find` printed multiple results, take the first.
let zig_crt_path = find_crt_output.split("\n").next().unwrap();
// Copy libc to where Cargo expects the output of this crate
fs::copy(&zig_libc_path, &out_file).unwrap();