Subject.

In new Qt releases "pthread_getattr" used in two files, but patch fixed only one:

sergey@host15:~/code/qt-everywhere-opensource-src-4.7.1/src$ grep -R pthread_getattr_np *
3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.cpp:// pthread_getattr_np or pthread_attr_getstack.
3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.cpp:        // LinuxBase is missing pthread_getattr_np - resolve it once at runtime instead
3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.cpp:        static int (*pthread_getattr_np_ptr)(pthread_t, pthread_attr_t *) = 0;
3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.cpp:        if (!pthread_getattr_np_ptr)
3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.cpp:            *(void **)&pthread_getattr_np_ptr = dlsym(RTLD_DEFAULT, "pthread_getattr_np");
3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.cpp:        if (pthread_getattr_np_ptr)
3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.cpp:            pthread_getattr_np_ptr(thread, &sattr);
3rdparty/javascriptcore/JavaScriptCore/runtime/Collector.cpp:        pthread_getattr_np(thread, &sattr);
3rdparty/webkit/JavaScriptCore/runtime/Collector.cpp:        pthread_getattr_np(thread, &sattr);

patch - from buildroot trunk at this time