Fix cfg guards

src/lib.rs

@@ -190,7 +190,7 @@ mod_use!(cfg(target_os = "redox"), use_file);
 mod_use!(cfg(target_os = "solaris"), solaris_illumos);
 mod_use!(cfg(windows), windows);
 mod_use!(cfg(target_env = "sgx"), rdrand);
-mod_use!(cfg(target_os = "uefi"), rdrand);
+mod_use!(cfg(all(target_arch = "x86_64", target_os = "uefi")), rdrand);
 mod_use!(cfg(target_os = "wasi"), wasi);
 
 mod_use!(
@@ -232,7 +232,7 @@ mod_use!(
         target_os = "openbsd",
         target_os = "redox",
         target_os = "solaris",
-        target_os = "uefi",
+        all(target_arch = "x86_64", target_os = "uefi"),
         target_env = "sgx",
         windows,
         all(

src/rdrand.rs

@@ -31,7 +31,7 @@ unsafe fn rdrand() -> Result<[u8; WORD_SIZE], Error> {
     Err(Error::UNKNOWN)
 }
 
-#[cfg(and(target_env = "sgx", not(target_feature = "rdrand")))]
+#[cfg(all(target_env = "sgx", not(target_feature = "rdrand")))]
 compile_error!("SGX targets must enable RDRAND to get randomness");
 
 // TODO use is_x86_feature_detected!("rdrand") when that works in core. See: