3 files changed, 12 insertions, 9 deletions
diff --git a/libsolidity/interface/CompilerStack.cpp b/libsolidity/interface/CompilerStack.cpp
index 89e024b3..d5a4e554 100644
--- a/libsolidity/interface/CompilerStack.cpp
+++ b/libsolidity/interface/CompilerStack.cpp
@@ -262,15 +262,12 @@ vector<string> CompilerStack::contractNames() const
 	return contractNames;
 }
 
-bool CompilerStack::compile(bool _optimize, unsigned _runs)
+bool CompilerStack::compile()
 {
 	if (m_stackState < AnalysisSuccessful)
 		if (!parseAndAnalyze())
 			return false;
 
-	m_optimize = _optimize;
-	m_optimizeRuns = _runs;
-
 	map<ContractDefinition const*, eth::Assembly const*> compiledContracts;
 	for (Source const* source: m_sourceOrder)
 		for (ASTPointer<ASTNode> const& node: source->ast->nodes())
diff --git a/libsolidity/interface/CompilerStack.h b/libsolidity/interface/CompilerStack.h
index 39875c32..356389db 100644
--- a/libsolidity/interface/CompilerStack.h
+++ b/libsolidity/interface/CompilerStack.h
@@ -103,6 +103,14 @@ public:
 		m_libraries = _libraries;
 	}
 
+	/// Changes the optimiser settings.
+	/// Will not take effect before running compile.
+	void setOptimiserSettings(bool _optimize, unsigned _runs = 200)
+	{
+		m_optimize = _optimize;
+		m_optimizeRuns = _runs;
+	}
+
 	/// Resets the compiler to a state where the sources are not parsed or even removed.
 	/// Sets the state to SourcesSet if @a _keepSources is true, otherwise to Empty.
 	/// All settings, with the exception of remappings, are reset.
@@ -126,10 +134,7 @@ public:
 
 	/// Compiles the source units that were previously added and parsed.
 	/// @returns false on error.
-	bool compile(
-		bool _optimize = false,
-		unsigned _runs = 200
-	);
+	bool compile();
 
 	/// @returns the assembled object for a contract.
 	eth::LinkerObject const& object(std::string const& _contractName = "") const;
diff --git a/libsolidity/interface/StandardCompiler.cpp b/libsolidity/interface/StandardCompiler.cpp
index 1690f3cc..23687340 100644
--- a/libsolidity/interface/StandardCompiler.cpp
+++ b/libsolidity/interface/StandardCompiler.cpp
@@ -249,6 +249,7 @@ Json::Value StandardCompiler::compileInternal(Json::Value const& _input)
 	Json::Value optimizerSettings = settings.get("optimizer", Json::Value());
 	bool const optimize = optimizerSettings.get("enabled", Json::Value(false)).asBool();
 	unsigned const optimizeRuns = optimizerSettings.get("runs", Json::Value(200u)).asUInt();
+	m_compilerStack.setOptimiserSettings(optimize, optimizeRuns);
 
 	map<string, h160> libraries;
 	Json::Value jsonLibraries = settings.get("libraries", Json::Value());
@@ -268,7 +269,7 @@ Json::Value StandardCompiler::compileInternal(Json::Value const& _input)
 
 	try
 	{
-		m_compilerStack.compile(optimize, optimizeRuns);
+		m_compilerStack.compile();
 
 		for (auto const& error: m_compilerStack.errors())
 		{