Tools/qmake/mkspecs/features/default_post.prf | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Tools/qmake/mkspecs/features/default_post.prf 
b/Tools/qmake/mkspecs/features/default_post.prf
index 67276b7..39bb3f7 100644
--- a/Tools/qmake/mkspecs/features/default_post.prf
+++ b/Tools/qmake/mkspecs/features/default_post.prf
@@ -201,6 +201,7 @@ needToLink() {
         
	 linkAgainstLibrary($$library,$$eval(WEBKIT.$${library_identifier}.root_source_dir))
         LIBS += $$eval(WEBKIT.$${library_identifier}.dependent_libs)
     }
+    posix:!darwin: LIBS += -lpthread
 }
 
 creating_module {