diff options
| -rw-r--r-- | src/unix/mod.rs | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/unix/mod.rs b/src/unix/mod.rs index 15c7821fa1..6360e1565f 100644 --- a/src/unix/mod.rs +++ b/src/unix/mod.rs @@ -285,6 +285,18 @@ cfg_if! { // cargo build, don't pull in anything extra as the libstd dep // already pulls in all libs. } else if #[cfg(target_env = "musl")] { + // On some architectures (e.g. aarch64) musl depends on some libgcc + // functions (__addtf3, __multf3, __subtf3) for long double arithmetic + // that it uses internally. Unfortunately we don't provide these + // functions in compiler-builtins, so we instead need to get them from + // libgcc. + // + // This is not a problem if we are linking to libc dynamically since the + // libgcc dependency will automatically get picked up by the linker + // then. + #[cfg_attr(feature = "stdbuild", + link(name = "gcc", kind = "static", + cfg(target_feature = "crt-static")))] #[cfg_attr(feature = "stdbuild", link(name = "c", kind = "static", cfg(target_feature = "crt-static")))] |