Bug 1771827 - Don't enable the aarch64_target_feature feature on rustc 1.61.0. r=gfx-reviewers,jrmuizel

because it's stable as of that version.

Differential Revision: https://phabricator.services.mozilla.com/D147706

gfx/qcms/build.rs

@@ -14,4 +14,7 @@ fn main() {
     if version().unwrap() >= Version::parse("1.60.0-alpha").unwrap() {
         println!("cargo:rustc-cfg=std_arch");
     }
+    if version().unwrap() < Version::parse("1.61.0-alpha").unwrap() {
+        println!("cargo:rustc-cfg=aarch64_target_feature");
+    }
 }

gfx/qcms/src/lib.rs

@@ -10,7 +10,11 @@
 #![cfg_attr(feature = "neon", feature(stdsimd))]
 #![cfg_attr(
     feature = "neon",
-    feature(aarch64_target_feature, arm_target_feature, raw_ref_op)
+    feature(arm_target_feature, raw_ref_op)
+)]
+#![cfg_attr(
+    all(feature = "neon", aarch64_target_feature),
+    feature(aarch64_target_feature)
 )]
 
 /// These values match the Rendering Intent values from the ICC spec