#include <boost/format.hpp>
+/* Before 4.7, gcc's std::exception uses empty throw() specifiers for
+ * its (virtual) destructor and what() in c++11 mode, in violation of spec
+ */
+#ifdef __GNUC__
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 7)
+#define EXCEPTION_NEEDS_THROW_SPEC
+#endif
+#endif
+
namespace nix {
public:
unsigned int status; // exit status
BaseError(const FormatOrString & fs, unsigned int status = 1);
+#ifdef EXCEPTION_NEEDS_THROW_SPEC
~BaseError() throw () { };
const char * what() const throw () { return err.c_str(); }
- const string & msg() const throw () { return err; }
- const string & prefix() const throw () { return prefix_; }
+#else
+ const char * what() const noexcept { return err.c_str(); }
+#endif
+ const string & msg() const { return err; }
+ const string & prefix() const { return prefix_; }
BaseError & addPrefix(const FormatOrString & fs);
};