diff --git a/source/dub/compilers/compiler.d b/source/dub/compilers/compiler.d
index b346f14..eb534b0 100644
--- a/source/dub/compilers/compiler.d
+++ b/source/dub/compilers/compiler.d
@@ -172,10 +172,24 @@
 	void setTarget(ref BuildSettings settings, in BuildPlatform platform);
 
 	/// Invokes the compiler using the given flags
-	void invoke(in BuildSettings settings, in BuildPlatform platform);
+	void invoke(in BuildSettings settings, in BuildPlatform platform, void delegate(int, string) output_callback);
 
 	/// Invokes the underlying linker directly
-	void invokeLinker(in BuildSettings settings, in BuildPlatform platform, string[] objects);
+	void invokeLinker(in BuildSettings settings, in BuildPlatform platform, string[] objects, void delegate(int, string) output_callback);
+
+	protected final void invokeTool(string[] args, void delegate(int, string) output_callback)
+	{
+		int status;
+		if (output_callback) {
+			auto result = execute(args);
+			output_callback(result.status, result.output);
+			status = result.status;
+		} else {
+			auto compiler_pid = spawnProcess(args);
+			status = compiler_pid.wait();
+		}
+		enforce(status == 0, args[0] ~ " failed with exit code "~to!string(status));
+	}
 }
 
 /// BuildPlatform specific settings, like needed libraries or additional
diff --git a/source/dub/compilers/dmd.d b/source/dub/compilers/dmd.d
index d007066..aa93705 100644
--- a/source/dub/compilers/dmd.d
+++ b/source/dub/compilers/dmd.d
@@ -161,19 +161,17 @@
 		settings.addDFlags("-of"~tpath.toNativeString());
 	}
 
-	void invoke(in BuildSettings settings, in BuildPlatform platform)
+	void invoke(in BuildSettings settings, in BuildPlatform platform, void delegate(int, string) output_callback)
 	{
 		auto res_file = getTempDir() ~ ("dub-build-"~uniform(0, uint.max).to!string~"-.rsp");
 		std.file.write(res_file.toNativeString(), join(settings.dflags.map!(s => s.canFind(' ') ? "\""~s~"\"" : s), "\n"));
 		scope (exit) remove(res_file.toNativeString());
 
 		logDiagnostic("%s %s", platform.compilerBinary, join(cast(string[])settings.dflags, " "));
-		auto compiler_pid = spawnProcess([platform.compilerBinary, "@"~res_file.toNativeString()]);
-		auto result = compiler_pid.wait();
-		enforce(result == 0, "DMD compile run failed with exit code "~to!string(result));
+		invokeTool([platform.compilerBinary, "@"~res_file.toNativeString()], output_callback);
 	}
 
-	void invokeLinker(in BuildSettings settings, in BuildPlatform platform, string[] objects)
+	void invokeLinker(in BuildSettings settings, in BuildPlatform platform, string[] objects, void delegate(int, string) output_callback)
 	{
 		import std.string;
 		auto tpath = Path(settings.targetPath) ~ getTargetFileName(settings, platform);
@@ -185,7 +183,6 @@
 		static linkerargs = ["-g", "-gc", "-m32", "-m64", "-shared"];
 		args ~= settings.dflags.filter!(f => linkerargs.canFind(f))().array();
 		logDiagnostic("%s", args.join(" "));
-		auto res = spawnProcess(args).wait();
-		enforce(res == 0, "Link command failed with exit code "~to!string(res));
+		invokeTool(args, output_callback);
 	}
 }
diff --git a/source/dub/compilers/gdc.d b/source/dub/compilers/gdc.d
index 7a048cf..642aa0d 100644
--- a/source/dub/compilers/gdc.d
+++ b/source/dub/compilers/gdc.d
@@ -149,19 +149,17 @@
 		settings.addDFlags("-o", tpath.toNativeString());
 	}
 
-	void invoke(in BuildSettings settings, in BuildPlatform platform)
+	void invoke(in BuildSettings settings, in BuildPlatform platform, void delegate(int, string) output_callback)
 	{
 		auto res_file = getTempDir() ~ ("dub-build-"~uniform(0, uint.max).to!string~"-.rsp");
 		std.file.write(res_file.toNativeString(), join(settings.dflags.map!(s => escape(s)), "\n"));
 		scope (exit) remove(res_file.toNativeString());
 
 		logDiagnostic("%s %s", platform.compilerBinary, join(cast(string[])settings.dflags, " "));
-		auto compiler_pid = spawnProcess([platform.compilerBinary, "@"~res_file.toNativeString()]);
-		auto result = compiler_pid.wait();
-		enforce(result == 0, "GDC compile run failed with exit code "~to!string(result));
+		invokeTool([platform.compilerBinary, "@"~res_file.toNativeString()], output_callback);
 	}
 
-	void invokeLinker(in BuildSettings settings, in BuildPlatform platform, string[] objects)
+	void invokeLinker(in BuildSettings settings, in BuildPlatform platform, string[] objects, void delegate(int, string) output_callback)
 	{
 		assert(false, "Separate linking not implemented for GDC");
 	}
diff --git a/source/dub/compilers/ldc.d b/source/dub/compilers/ldc.d
index 5dff8e3..e01109a 100644
--- a/source/dub/compilers/ldc.d
+++ b/source/dub/compilers/ldc.d
@@ -149,19 +149,17 @@
 		settings.addDFlags("-of"~tpath.toNativeString());
 	}
 
-	void invoke(in BuildSettings settings, in BuildPlatform platform)
+	void invoke(in BuildSettings settings, in BuildPlatform platform, void delegate(int, string) output_callback)
 	{
 		auto res_file = getTempDir() ~ ("dub-build-"~uniform(0, uint.max).to!string~"-.rsp");
 		std.file.write(res_file.toNativeString(), join(cast(string[])settings.dflags, "\n"));
 		scope (exit) remove(res_file.toNativeString());
 
 		logDiagnostic("%s %s", platform.compilerBinary, join(cast(string[])settings.dflags, " "));
-		auto compiler_pid = spawnProcess([platform.compilerBinary, "@"~res_file.toNativeString()]);
-		auto result = compiler_pid.wait();
-		enforce(result == 0, "LDC compile run failed with exit code "~to!string(result));
+		invokeTool([platform.compilerBinary, "@"~res_file.toNativeString()], output_callback);
 	}
 
-	void invokeLinker(in BuildSettings settings, in BuildPlatform platform, string[] objects)
+	void invokeLinker(in BuildSettings settings, in BuildPlatform platform, string[] objects, void delegate(int, string) output_callback)
 	{
 		assert(false, "Separate linking not implemented for GDC");
 	}
diff --git a/source/dub/generators/build.d b/source/dub/generators/build.d
index 3e96cd0..40b1d57 100644
--- a/source/dub/generators/build.d
+++ b/source/dub/generators/build.d
@@ -71,7 +71,7 @@
 		auto buildsettings = targets[m_project.mainPackage.name].buildSettings;
 		if (settings.run && !(buildsettings.options & BuildOptions.syntaxOnly)) {
 			auto exe_file_path = Path(buildsettings.targetPath) ~ getTargetFileName(buildsettings, settings.platform);
-			runTarget(exe_file_path, buildsettings, settings.runArgs);
+			runTarget(exe_file_path, buildsettings, settings.runArgs, settings);
 		}
 	}
 
@@ -347,7 +347,7 @@
 
 			// invoke the compiler
 			logInfo("Running %s...", settings.platform.compilerBinary);
-			settings.compiler.invoke(buildsettings, settings.platform);
+			settings.compiler.invoke(buildsettings, settings.platform, settings.compileCallback);
 		} else {
 			// determine path for the temporary object file
 			string tempobjname = buildsettings.targetName;
@@ -369,14 +369,14 @@
 			settings.compiler.prepareBuildSettings(buildsettings, BuildSetting.commandLine);
 
 			logInfo("Compiling...");
-			settings.compiler.invoke(buildsettings, settings.platform);
+			settings.compiler.invoke(buildsettings, settings.platform, settings.compileCallback);
 
 			logInfo("Linking...");
-			settings.compiler.invokeLinker(lbuildsettings, settings.platform, [tempobj.toNativeString()]);
+			settings.compiler.invokeLinker(lbuildsettings, settings.platform, [tempobj.toNativeString()], settings.linkCallback);
 		}
 	}
 
-	void runTarget(Path exe_file_path, in BuildSettings buildsettings, string[] run_args)
+	void runTarget(Path exe_file_path, in BuildSettings buildsettings, string[] run_args, GeneratorSettings settings)
 	{
 		if (buildsettings.targetType == TargetType.executable) {
 			auto cwd = Path(getcwd());
@@ -395,9 +395,14 @@
 					exe_path_string = "./" ~ exe_path_string;
 			}
 			logInfo("Running %s %s", exe_path_string, run_args.join(" "));
-			auto prg_pid = spawnProcess(exe_path_string ~ run_args);
-			auto result = prg_pid.wait();
-			enforce(result == 0, "Program exited with code "~to!string(result));
+			if (settings.runCallback) {
+				auto res = execute(exe_path_string ~ run_args);
+				settings.runCallback(res.status, res.output);
+			} else {
+				auto prg_pid = spawnProcess(exe_path_string ~ run_args);
+				auto result = prg_pid.wait();
+				enforce(result == 0, "Program exited with code "~to!string(result));
+			}
 		} else logInfo("Target is a library. Skipping execution.");
 	}
 
diff --git a/source/dub/generators/generator.d b/source/dub/generators/generator.d
index 5a9fbf8..f7149f7 100644
--- a/source/dub/generators/generator.d
+++ b/source/dub/generators/generator.d
@@ -176,6 +176,9 @@
 	// only used for generator "build"
 	bool run, force, direct, clean, rdmd;
 	string[] runArgs;
+	void delegate(int status, string output) compileCallback;
+	void delegate(int status, string output) linkCallback;
+	void delegate(int status, string output) runCallback;
 }