Add native-libs meta package

README.md

@@ -0,0 +1,11 @@
+# racket-audio-native-libs
+
+Meta-package for the native libraries used by `racket-audio`.
+
+This branch contains no native libraries. It selects the package matching the
+current Racket platform:
+
+    Windows x86_64     racket-audio-x86_64-win32
+    Linux x86_64       racket-audio-x86_64-linux
+    Linux ARM64        racket-audio-aarch64-linux
+    macOS Apple Silicon racket-audio-aarch64-macosx

info.rkt

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+#lang info
+
+(define collection 'multi)
+
+(define version "0.1.0")
+
+(define pkg-desc
+  "native libraries for \"racket-audio\"")
+
+(define pkg-authors
+  '(hans))
+
+(define license
+  '(Apache-2.0 OR MIT))
+
+(define deps
+  '("base"
+    ["racket-audio-x86_64-win32"
+     #:platform "win32\\x86_64"]
+    ["racket-audio-x86_64-linux"
+     #:platform "x86_64-linux"]
+    ["racket-audio-aarch64-linux"
+     #:platform "aarch64-linux"]
+    ["racket-audio-aarch64-macosx"
+     #:platform "aarch64-macosx"]))
+
+(define update-implies
+  '("racket-audio-x86_64-win32"
+    "racket-audio-x86_64-linux"
+    "racket-audio-aarch64-linux"
+    "racket-audio-aarch64-macosx"))