Merge pull request #4529 from Gelbpunkt/mips64-irix-compat

linux_like: mips64: Fix SI_TIMER, SI_MESGQ and SI_ASYNCIO definitions

Author: tgross35

src/unix/linux_like/mod.rs

@@ -1268,7 +1268,11 @@ pub const SI_USER: c_int = 0;
 pub const SI_KERNEL: c_int = 0x80;
 pub const SI_QUEUE: c_int = -1;
 cfg_if! {
-    if #[cfg(not(any(target_arch = "mips", target_arch = "mips32r6")))] {
+    if #[cfg(not(any(
+        target_arch = "mips",
+        target_arch = "mips32r6",
+        target_arch = "mips64"
+    )))] {
         pub const SI_TIMER: c_int = -2;
         pub const SI_MESGQ: c_int = -3;
         pub const SI_ASYNCIO: c_int = -4;