diff -ru sidplay-libs-2.1.1-orig/builders/hardsid-builder/src/hardsid-builder.cpp sidplay-libs-2.1.1/builders/hardsid-builder/src/hardsid-builder.cpp

--- sidplay-libs-2.1.1-orig/builders/hardsid-builder/src/hardsid-builder.cpp	2004-06-14 23:07:57.000000000 +0300

+++ sidplay-libs-2.1.1/builders/hardsid-builder/src/hardsid-builder.cpp	2019-02-14 17:26:03.832156208 +0200

@@ -376,6 +376,7 @@

             m_count = index;

     }

     closedir (dir);

+    return 0;

 }

 #endif // HAVE_MSWINDOWS