Index: tests/OFBlockTests.m
==================================================================
--- tests/OFBlockTests.m
+++ tests/OFBlockTests.m
@@ -69,13 +69,19 @@
 
 	TEST(@"Class of stack block",
 	    (Class)&_NSConcreteStackBlock == objc_getClass("OFStackBlock") &&
 	    [s isKindOfClass: [OFBlock class]])
 
+#if !defined(OF_WINDOWS) || !defined(__clang__)
+	/*
+	 * Causes a linker error on Windows with Clang when compiling as a
+	 * static library. This is a bug in Clang.
+	 */
 	TEST(@"Class of global block",
 	    (Class)&_NSConcreteGlobalBlock == objc_getClass("OFGlobalBlock") &&
 	    [g isKindOfClass: [OFBlock class]])
+#endif
 
 	TEST(@"Class of a malloc block",
 	    (Class)&_NSConcreteMallocBlock == objc_getClass("OFMallocBlock"))
 
 	TEST(@"Copying a stack block",