sony-headphones-client: patch gcc-20 support

pkgs/applications/audio/sony-headphones-client/default.nix

@@ -19,26 +19,35 @@ stdenv.mkDerivation rec {
 
   cmakeFlags = [ "-Wno-dev" ];
 
+  patches = [ ./gcc.patch ];
+
+  postPatch = ''
+    substituteInPlace Constants.h \
+      --replace "UNKNOWN = -1" "// UNKNOWN removed since it doesn't fit in char"
+  '';
+
   installPhase = ''
     runHook preInstall
     install -Dm755 -t $out/bin SonyHeadphonesClient
     runHook postInstall
   '';
 
-  desktopItems = [ (makeDesktopItem {
-    name = "SonyHeadphonesClient";
-    exec = "SonyHeadphonesClient";
-    icon = "SonyHeadphonesClient";
-    desktopName = "Sony Headphones Client";
-    comment     = "A client recreating the functionality of the Sony Headphones app";
-    categories  = [ "Audio" "Mixer" ];
-  }) ];
+  desktopItems = [
+    (makeDesktopItem {
+      name = "SonyHeadphonesClient";
+      exec = "SonyHeadphonesClient";
+      icon = "SonyHeadphonesClient";
+      desktopName = "Sony Headphones Client";
+      comment = "A client recreating the functionality of the Sony Headphones app";
+      categories = [ "Audio" "Mixer" ];
+    })
+  ];
 
   meta = with lib; {
     description = "A client recreating the functionality of the Sony Headphones app";
-    homepage    = "https://github.com/Plutoberth/SonyHeadphonesClient";
-    license     = licenses.mit;
+    homepage = "https://github.com/Plutoberth/SonyHeadphonesClient";
+    license = licenses.mit;
     maintainers = with maintainers; [ stunkymonkey ];
-    platforms   = platforms.linux;
+    platforms = platforms.linux;
   };
 }

pkgs/applications/audio/sony-headphones-client/gcc.patch

@@ -0,0 +1,19 @@
+diff --git a/SingleInstanceFuture.h b/SingleInstanceFuture.h
+index 8af733f..d2e6c49 100644
+--- a/SingleInstanceFuture.h
++++ b/SingleInstanceFuture.h
+@@ -12,13 +12,13 @@ template <class T>
+ class SingleInstanceFuture : public std::future<T>
+ {
+ public:
+-	SingleInstanceFuture<T>() = default;
++	SingleInstanceFuture(void) = default;
+ 	template<class Func, class... Args>
+ 	void setFromAsync(Func func, Args&&... args) noexcept(false);
+ 	bool ready();
+ 
+ private:
+-	SingleInstanceFuture<T>(std::future<T> other);
++	SingleInstanceFuture(std::future<T> other);
+ 	SingleInstanceFuture<T> operator=(std::future<T>& other);
+ };