dlang · schveiguy · May 21, 2021
diff --git a/source/dub/package_.d b/source/dub/package_.d
@@ -118,7 +118,6 @@ class Package {
 
 		checkDubRequirements();
 		fillWithDefaults();
-		mutuallyExcludeMainFiles();
 	}
 
 	/** Searches the given directory for package recipe files.
@@ -750,30 +749,6 @@ class Package {
 			cnames[c.name] = true;
 		}
 	}
-
-	/// Exclude files listed in mainSourceFile for other configurations unless they are listed in sourceFiles
-	private void mutuallyExcludeMainFiles()
-	{
-		string[] allMainFiles;
-		foreach (ref config; m_info.configurations)
-			if (!config.buildSettings.mainSourceFile.empty())
-				allMainFiles ~= config.buildSettings.mainSourceFile;
-
-		if (allMainFiles.length == 0)
-			return;
-
-		foreach (ref config; m_info.configurations) {
-			import std.algorithm.searching : canFind;
-			auto bs = &config.buildSettings;
-			auto otherMainFiles = allMainFiles.filter!(elem => (elem != bs.mainSourceFile)).array;
-
-			if (bs.sourceFiles.length == 0)
-				bs.excludedSourceFiles[""] ~= otherMainFiles;
-			else
-				foreach (suffix, arr; bs.sourceFiles)
-					bs.excludedSourceFiles[suffix] ~= otherMainFiles.filter!(elem => !canFind(arr, elem)).array;
-		}
-	}
 }
 
 private string determineVersionFromSCM(NativePath path)

diff --git a/test/mutex-main-1/.no_run b/test/mutex-main-1/.no_run
diff --git a/test/mutex-main-1/.no_test b/test/mutex-main-1/.no_test
diff --git a/test/mutex-main-1/dub.json b/test/mutex-main-1/dub.json
diff --git a/test/mutex-main-1/source/app.d b/test/mutex-main-1/source/app.d
diff --git a/test/mutex-main-1/source/app2.d b/test/mutex-main-1/source/app2.d
diff --git a/test/mutex-main-2/.no_run b/test/mutex-main-2/.no_run
diff --git a/test/mutex-main-2/.no_test b/test/mutex-main-2/.no_test
diff --git a/test/mutex-main-2/dub.json b/test/mutex-main-2/dub.json
diff --git a/test/mutex-main-2/source/app.d b/test/mutex-main-2/source/app.d
diff --git a/test/mutex-main-2/source/app2.d b/test/mutex-main-2/source/app2.d
diff --git a/test/mutex-main-3/.fail_build b/test/mutex-main-3/.fail_build
diff --git a/test/mutex-main-3/.no_run b/test/mutex-main-3/.no_run
diff --git a/test/mutex-main-3/.no_test b/test/mutex-main-3/.no_test
diff --git a/test/mutex-main-3/dub.json b/test/mutex-main-3/dub.json
diff --git a/test/mutex-main-3/source/app.d b/test/mutex-main-3/source/app.d
diff --git a/test/mutex-main-3/source/app2.d b/test/mutex-main-3/source/app2.d