Skip res_init test on macOS/iOS
diff --git a/libc-test/build.rs b/libc-test/build.rs
index 57767f5..2f59a44 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -469,10 +469,16 @@
// it's in a header file?
"endpwent" if android => true,
- // Apparently it exists, but isn't defined in a header:
+ // Apparently res_init exists on Android, but isn't defined in a header:
// https://mail.gnome.org/archives/commits-list/2013-May/msg01329.html
"res_init" if android => true,
+ // On macOS and iOS, res_init is available, but requires linking with libresolv:
+ // http://blog.achernya.com/2013/03/os-x-has-silly-libsystem.html
+ // See discussion for skipping here:
+ // https://github.com/rust-lang/libc/pull/585#discussion_r114561460
+ "res_init" if apple => true,
+
_ => false,
}
});