{swt,tuxguitar}: several small fixes (#462254)

pkgs/by-name/sw/swt/package.nix

@@ -11,8 +11,10 @@
 
 stdenv.mkDerivation (finalAttrs: {
   pname = "swt";
-  version = "4.34";
-  fullVersion = "${finalAttrs.version}-202411201800";
+  # NOTE: In case you wish to override, don't override version, override
+  # `fullVersion`.
+  version = builtins.elemAt (lib.splitString "-" finalAttrs.fullVersion) 1;
+  fullVersion = "R-4.34-202411201800";
 
   hardeningDisable = [ "format" ];
 
@@ -44,7 +46,7 @@ stdenv.mkDerivation (finalAttrs: {
     in
     assert srcMetadata != null;
     fetchzip {
-      url = "https://archive.eclipse.org/eclipse/downloads/drops4/R-${finalAttrs.fullVersion}/swt-${finalAttrs.version}-${srcMetadata.platform}.zip";
+      url = "https://download.eclipse.org/eclipse/downloads/drops4/${finalAttrs.fullVersion}/swt-${finalAttrs.version}-${srcMetadata.platform}.zip";
       inherit (srcMetadata) hash;
       stripRoot = false;
       postFetch =
@@ -142,6 +144,12 @@ stdenv.mkDerivation (finalAttrs: {
       mpl20
     ];
     maintainers = [ ];
+    # The darwin src zip file holds simply a prebuilt swt.jar file
+    sourceProvenance = lib.optionals stdenv.hostPlatform.isDarwin [
+      lib.sourceTypes.binaryNativeCode
+    ];
     platforms = lib.attrNames finalAttrs.passthru.srcMetadataByPlatform;
+    # Fails with: `java.nio.file.NoSuchFileException: ../swt.jar`
+    broken = stdenv.hostPlatform.isDarwin && stdenv.hostPlatform.isx86_64;
   };
 })

pkgs/by-name/tu/tuxguitar/package.nix

@@ -75,8 +75,9 @@ stdenv.mkDerivation (finalAttrs: {
     '';
     homepage = "https://github.com/helge17/tuxguitar";
     sourceProvenance = with lib.sourceTypes; [ binaryBytecode ];
-    license = lib.licenses.lgpl2;
+    license = lib.licenses.lgpl21Plus;
     maintainers = with lib.maintainers; [ ardumont ];
     platforms = [ "x86_64-linux" ];
+    mainProgram = "tuxguitar";
   };
 })