fix(Linux): Use Release package build and byte helper

.github/workflows/ci.yml

@@ -501,16 +501,16 @@ jobs:
 
       # This intentionally uses a separate BUILD_TESTS=OFF configuration. Test
       # builds add lizardbyte-common for test support and therefore cannot prove
-      # that a normal installed package is independently consumable. Debug keeps
-      # this packaging regression isolated from the open optimized-GCC P2; switch
-      # this job to Release when that warning is resolved.
+      # that a normal installed package is independently consumable. Release also
+      # keeps an optimized GCC library build under warnings-as-errors without
+      # changing or publishing the ordinary library artifacts.
       - name: Configure tests-disabled package
         run: |
           cmake \
             -DBUILD_DOCS=OFF \
             -DBUILD_EXAMPLES=OFF \
             -DBUILD_TESTS=OFF \
-            -DCMAKE_BUILD_TYPE:STRING=Debug \
+            -DCMAKE_BUILD_TYPE:STRING=Release \
             -DCMAKE_INSTALL_PREFIX="${GITHUB_WORKSPACE}/cmake-build-package/install" \
             -DLIBVIRTUALHID_BUILD_TOOLS=OFF \
             -DLIBVIRTUALHID_ENABLE_PACKAGING=OFF \

src/core/profiles.cpp

@@ -6,6 +6,7 @@
 // standard includes
 #include <cstddef>
 #include <cstdint>
+#include <initializer_list>
 #include <string>
 #include <string_view>
 #include <vector>
@@ -90,6 +91,16 @@ namespace lvh::profiles {
       return descriptor;
     }
 
+    void append_descriptor_bytes(
+      std::vector<std::uint8_t> &descriptor,
+      std::initializer_list<std::uint8_t> bytes
+    ) {
+      descriptor.reserve(descriptor.size() + bytes.size());
+      for (const auto byte : bytes) {
+        descriptor.push_back(byte);
+      }
+    }
+
     void append_common_gamepad_buttons(std::vector<std::uint8_t> &descriptor, bool include_misc_button) {
       descriptor.insert(
         descriptor.end(),
@@ -270,8 +281,8 @@ namespace lvh::profiles {
         report_id,  // Report ID
       };
       append_common_gamepad_buttons(descriptor, false);
-      descriptor.insert(
-        descriptor.end(),
+      append_descriptor_bytes(
+        descriptor,
         {
           0x05,
           0x01,  // Usage Page (Generic Desktop)
@@ -325,8 +336,8 @@ namespace lvh::profiles {
       );
 
       if (supports_rumble) {
-        descriptor.insert(
-          descriptor.end(),
+        append_descriptor_bytes(
+          descriptor,
           {
             0x06,
             0x00,