[rtmidi] Add new 'alsa' feature (#25156)

ports/rtmidi/portfile.cmake

@@ -11,12 +11,17 @@ vcpkg_from_github(
     PATCHES fix-cmake-usage.patch # Remove this patch in the next update
 )
 
+vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
+    FEATURES
+        alsa RTMIDI_API_ALSA
+)
+
 vcpkg_cmake_configure(
     SOURCE_PATH "${SOURCE_PATH}"
     OPTIONS
-        -DRTMIDI_API_ALSA=OFF
         -DRTMIDI_API_JACK=OFF
         -DRTMIDI_BUILD_TESTING=OFF
+        ${FEATURE_OPTIONS}
 )
 
 vcpkg_cmake_install()

ports/rtmidi/vcpkg.json

@@ -1,7 +1,7 @@
 {
   "name": "rtmidi",
   "version": "5.0.0",
-  "port-version": 1,
+  "port-version": 2,
   "description": "A set of C++ classes that provide a common API for realtime MIDI input/output across Linux (ALSA & JACK), Macintosh OS X (CoreMidi & JACK) and Windows (Multimedia)",
   "homepage": "https://github.com/thestk/rtmidi",
   "license": "MIT",
@@ -15,5 +15,14 @@
       "name": "vcpkg-cmake-config",
       "host": true
     }
-  ]
+  ],
+  "features": {
+    "alsa": {
+      "description": "Build ALSA API",
+      "supports": "linux",
+      "dependencies": [
+        "alsa"
+      ]
+    }
+  }
 }

versions/baseline.json

@@ -6318,7 +6318,7 @@
     },
     "rtmidi": {
       "baseline": "5.0.0",
-      "port-version": 1
+      "port-version": 2
     },
     "rttr": {
       "baseline": "0.9.6",

versions/r-/rtmidi.json

@@ -1,5 +1,10 @@
 {
   "versions": [
+    {
+      "git-tree": "70873823ce910dcf80078a94f12191371523d84c",
+      "version": "5.0.0",
+      "port-version": 2
+    },
     {
       "git-tree": "30614a92baff91c2d2790029179dbb37122ca331",
       "version": "5.0.0",