Always use core::arch

Cargo.toml

@@ -2,7 +2,6 @@
 name = "raw-cpuid"
 version = "8.1.2"
 authors = ["Gerd Zellweger <mail@gerdzellweger.com>"]
-build = "build.rs"
 edition = "2018"
 
 description = "A library to parse the x86 CPUID instruction, written in rust with no external dependencies. The implementation closely resembles the Intel CPUID manual description. The library does only depend on libcore."
@@ -33,7 +32,3 @@ serde_derive = {version = "1.0", optional = true }
 libc = { version = "0.2", default-features = false }
 core_affinity = "0.5.10"
 rustversion = "1.0"
-
-[build-dependencies]
-rustc_version = "0.3"
-cc = "1"

src/lib.rs

@@ -15,29 +15,7 @@ extern crate serde_derive;
 #[macro_use]
 extern crate bitflags;
 
-/// Provides `cpuid` on stable by linking against a C implementation.
-#[cfg(not(feature = "use_arch"))]
-pub mod native_cpuid {
-    use super::CpuIdResult;
-
-    extern "C" {
-        fn cpuid(a: *mut u32, b: *mut u32, c: *mut u32, d: *mut u32);
-    }
-
-    pub fn cpuid_count(mut eax: u32, mut ecx: u32) -> CpuIdResult {
-        let mut ebx = 0u32;
-        let mut edx = 0u32;
-
-        unsafe {
-            cpuid(&mut eax, &mut ebx, &mut ecx, &mut edx);
-        }
-
-        CpuIdResult { eax, ebx, ecx, edx }
-    }
-}
-
 /// Uses Rust's `cpuid` function from the `arch` module.
-#[cfg(feature = "use_arch")]
 pub mod native_cpuid {
     use super::CpuIdResult;