Auto merge of #972 - gnzlbg:packed, r=alexcrichton
Fix undefined-behavior on MacOSX structs in stdbuilds
Some MacOSX structs have an incorrect layout that results in undefined behavior. This is because on `x86_64` the MacOSX kernel headers define these using `#pragma pack 4`.
This PR fixes their layout using `repr(packed(4))` . Since it is only available on nightly, it is only enabled for stdbuilds .
diff --git a/src/unix/notbsd/linux/mod.rs b/src/unix/notbsd/linux/mod.rs
index 956a797..d4a3bb9 100644
--- a/src/unix/notbsd/linux/mod.rs
+++ b/src/unix/notbsd/linux/mod.rs
@@ -1917,6 +1917,11 @@
fd: ::c_int,
newfd: ::c_int,
) -> ::c_int;
+ pub fn fread_unlocked(ptr: *mut ::c_void,
+ size: ::size_t,
+ nobj: ::size_t,
+ stream: *mut ::FILE
+ ) -> ::size_t;
}
cfg_if! {