Compile error: __thread (gcc 3.4.6 on RedHat enterprise 4)

NOTE: This is 4.8 snapshot but I can't select 4.8 from the list.

linking ../../lib/libQtCore.so.4.8.0
.obj/release-shared/qthread_unix.o(.text+0x46): In function `set_thread_data(QThreadData*)':
: undefined reference to `___tls_get_addr'
.obj/release-shared/qthread_unix.o(.text+0x1520): In function `QThreadData::current()':
: undefined reference to `___tls_get_addr'
.obj/release-shared/qthread_unix.o(.text+0x1614): In function `QThreadData::current()':
: undefined reference to `___tls_get_addr'
collect2: ld returned 1 exit status
make[1]: *** [../../lib/libQtCore.so.4.8.0] Error 1
make[1]: Leaving directory `/home/hj/qtlib/qt-qt/src/corelib'
make: *** [sub-corelib-make_default-ordered] Error 2

seems that my system does not have the TLS. I if remove the '#define HAVE_TLS' then it compiles.

Any suggestions or is the RedHat 4 enterprise not longer supported?