Caching bin path

src/platformTools.cpp

@@ -11,6 +11,7 @@ using boost::filesystem::path;
 using std::string;
 
 path getBinPath() {
+	static const path binPath = [] {
 		try {
 			// Determine path length
 			int pathLength = wai_getExecutablePath(nullptr, 0, nullptr);
@@ -34,6 +35,8 @@ path getBinPath() {
 		} catch (...) {
 			std::throw_with_nested(std::runtime_error("Could not determine path of bin directory."));
 		}
+	}();
+	return binPath;
 }
 
 path getBinDirectory() {