Add native-libs meta package

.gitignore

@@ -1,19 +0,0 @@
-# ---> Racket
-# gitignore template for the Racket language
-# website: http://www.racket-lang.org/
-
-# DrRacket autosave files
-*.rkt~
-*.rkt.bak
-\#*.rkt#
-\#*.rkt#*#
-
-# Compiled racket bytecode
-compiled/
-*.zo
-
-# Dependency tracking files
-*.dep
-
-*.bak
-

Makefile.rkt

@@ -1,41 +0,0 @@
-#lang racket-makefile
-
-(require git
-         package-zipper)
-
-(target all
-        (displayln "use (make clean) or (make package)"))
-
-(target clean
-        (for-each (λ (f) (displayln f) (rm-f f)) (list-files "." #px"([.]bak|~)$" #:recursive #t))
-        (for-each (λ (d) (displayln d) (rm-rf d)) (list-dirs "." #px"(compiled|doc)$" #:recursive #t))
-        (for-each (λ (f) (displayln f) (rm-f f)) (list-files "scrbl" #px"[.](css|js|html)$"))
-        )
-
-(target package
-        (deps clean)
-        (zip-package))
-
-(target housekeeping
-        (displayln "Committing changes for:")
-        (let ((changes (git 'status)))
-          (when (> (length changes) 0)
-            (dgit 'status)
-            (displayln "Adding...")
-            (dgit 'add '-A)
-            (displayln "Committing...")
-            (dgit 'commit (git-prompt))
-            (displayln "Pushing...")
-            (dgit 'push)))
-        )
-        
-
-(target main
-        (deps housekeeping)
-        (displayln "Switching back to main branch")
-        (dgit 'switch "main")
-        (dgit 'branch-current)
-        )
-
-
-

README.md

@@ -1,15 +1,11 @@
-# racket-audio-x86_64-win32
+# racket-audio-native-libs
 
-Native libraries for `racket-audio` on Windows x86_64.
+Meta-package for the native libraries used by `racket-audio`.
 
-Put the native files directly in the root of this branch, next to `info.rkt`.
+This branch contains no native libraries. It selects the package matching the
+current Racket platform:
 
-Expected file type:
+    Windows x86_64     racket-audio-x86_64-win32
-
+    Linux x86_64       racket-audio-x86_64-linux
-    *.dll
+    Linux ARM64        racket-audio-aarch64-linux
-
+    macOS Apple Silicon racket-audio-aarch64-macosx
-List every shipped native file in `copy-foreign-libs` in `info.rkt`.
-
-Racket Package Index source:
-
-    <git-url>#x86_64-win32

info.bak

@@ -1,25 +0,0 @@
-#lang info
-
-(define collection 'multi)
-
-(define version "0.1.0")
-
-(define pkg-desc
-  "native libraries for \"racket-audio\" on \"x86_64-win32\"")
-
-(define pkg-authors
-  '(hans))
-
-(define license
-  '(Apache-2.0 OR MIT))
-
-(define install-platform
-  "win32\\x86_64")
-
-;; Add every native library shipped in this branch, including runtime
-;; dependencies required by the primary audio libraries.
-(define copy-foreign-libs
-  '())
-
-(define deps
-  '("base"))

info.rkt

@@ -5,7 +5,7 @@
 (define version "0.1.0")
 
 (define pkg-desc
-  "native libraries for \"racket-audio\" on \"x86_64-win32\"")
+  "native libraries for \"racket-audio\"")
 
 (define pkg-authors
   '(hans))
@@ -13,41 +13,19 @@
 (define license
   '(Apache-2.0 OR MIT))
 
-(define install-platform
-  "win32\\x86_64")
-
-;; Add every native library shipped in this branch, including runtime
-;; dependencies required by the primary audio libraries.
-(define copy-foreign-libs
-  '("ao-play-async.dll"
-    "ao-play-async.lib"
-    "avcodec-62.dll"
-    "avdevice-62.dll"
-    "avfilter-11.dll"
-    "avformat-62.dll"
-    "avutil-60.dll"
-    "ffmpeg_audio.dll"
-    "ffmpeg_audio.lib"
-    "info.bak"
-    "libFLAC.dll"
-    "libao-1.2.2.dll"
-    "libao-1.2.2.lib"
-    "libao-static-1.2.2.lib"
-    "libmpg123-0.dll"
-    "libopusenc.dll"
-    "ogg.dll"
-    "opus.dll"
-    "opusfile.dll"
-    "opusurl.dll"
-    "soxr-lsr.dll"
-    "soxr.dll"
-    "swresample-6.dll"
-    "swscale-9.dll"
-    "tag.dll"
-    "tag_c.dll"
-    "zlib.dll"
-    )
-  )
-
 (define deps
-  '("base"))
+  '("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"))