fontique: Enable builds for iOS and other Apple targets.

This uses `target_vendor` despite the future deprecation as there
will be a replacement (likely using `target_family`) as the
deprecation nears.

fontique/Cargo.toml

@@ -35,10 +35,10 @@ dwrote = "0.11.0"
 winapi = { version = "0.3.9", features = ["dwrite", "dwrite_1", "dwrite_3", "winnt", "unknwnbase", "libloaderapi", "winnls"] }
 wio = "0.2.2"
 
-[target.'cfg(any(target_os="macos", target_os="ios"))'.dependencies]
+[target.'cfg(target_vendor="apple")'.dependencies]
 core-text = "20.1.0"
 core-foundation = "0.9.4"
 
-[target.'cfg(not(any(target_os="macos", target_os="ios", target_family="windows")))'.dependencies]
+[target.'cfg(not(any(target_vendor="apple", target_family="windows")))'.dependencies]
 fontconfig-cache-parser = "0.2.0"
 roxmltree = "0.19.0"

fontique/src/backend/mod.rs

@@ -7,7 +7,10 @@
 #[path = "dwrite.rs"]
 mod system;
 
-#[cfg(all(feature = "system", target_os = "macos"))]
+#[cfg(all(
+    feature = "system",
+    target_vendor = "apple"
+))]
 #[path = "coretext.rs"]
 mod system;