fix target_arch build issue

Cargo.toml

@@ -1,11 +1,11 @@
 [package]
 name = "ruspiro-cache"
 authors = ["Andre Borrmann <[email protected]>"]
-version = "0.1.0" # remember to update html_root_url
+version = "0.1.1" # remember to update html_root_url
 description = "Raspberry Pi cache maintenance operation API"
 license = "Apache-2.0"
-repository = "https://github.com/RusPiRo/ruspiro-cache/tree/v0.1.0"
-documentation = "https://docs.rs/ruspiro-cache/0.1.0"
+repository = "https://github.com/RusPiRo/ruspiro-cache/tree/v0.1.1"
+documentation = "https://docs.rs/ruspiro-cache/0.1.1"
 readme = "README.md"
 keywords = ["RusPiRo", "baremetal", "raspberrypi", "cache"]
 categories = ["no-std", "embedded"]
@@ -27,8 +27,5 @@ default = ["ruspiro_pi3"]
 ruspiro_pi3 = []
 
 [package.metadata.docs.rs]
-all-features = true
-rustc-args = [
-    "-C target-cpu=cortex-a53",
-    "-C target-feature=+a53,+fp-armv8,+v8,+vfp3,+d16,+thumb2,+neon"
-    ]
+all-features = false
+no-default-features = true

README.md

@@ -14,7 +14,7 @@ to ensure access to the most recent values stores in the memory.
 To use the crate just add the following dependency to your ``Cargo.toml`` file:
 ```
 [dependencies]
-ruspiro-cache = "0.1.0"
+ruspiro-cache = "0.1.1"
 ```
 
 Once done the access to the cache maintenance functions is available like so:

build.rs

@@ -12,14 +12,17 @@ extern crate cc;
 use std::env;
 
 fn main() {
-    let build_pi3 = env::var_os("CARGO_FEATURE_RUSPIRO_PI3").is_some();
-    if build_pi3 {
-        #[cfg(target_arch="arm")]
-        cc::Build::new()
-            .file("src/asm/cache.s")
-            .flag("-march=armv8-a")
-            .flag("-mfpu=neon-fp-armv8")
-            .flag("-mfloat-abi=hard")
-            .compile("cache");
+    match env::var_os("CARGO_CFG_TARGET_ARCH") {
+        Some(target_arch) => {
+            if target_arch == "arm" && env::var_os("CARGO_FEATURE_RUSPIRO_PI3").is_some() {
+                cc::Build::new()
+                    .file("src/asm/cache.s")
+                    .flag("-march=armv8-a")
+                    .flag("-mfpu=neon-fp-armv8")
+                    .flag("-mfloat-abi=hard")
+                    .compile("cache");
+            }
+        },
+        _ => ()
     }
 }

src/lib.rs

@@ -4,7 +4,7 @@
  * Author: André Borrmann 
  * License: Apache License 2.0
  **********************************************************************************************************************/
-#![doc(html_root_url = "https://docs.rs/ruspiro-cache/0.1.0")]
+#![doc(html_root_url = "https://docs.rs/ruspiro-cache/0.1.1")]
 #![no_std]
 #![feature(asm)]