@@ -20,10 +20,15 @@
 #include "config.h"
 
 #include <stdlib.h>
 #include <math.h>
 #include <time.h>
+
+/* Work around __block being used by glibc */
+#ifdef __GLIBC__
+# undef __USE_XOPEN
+#endif
 
 #ifndef _WIN32
 # include <unistd.h>
 #endif