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e328c8a7 - libtextstyle: Fix link error when compiled with GCC 3.3.x.

libtextstyle: Fix link error when compiled with GCC 3.3.x. Reported by Jeffrey Walton <noloader@gmail.com>. * gnulib-local/lib/libxml/timsort.h (CLZ): Don't define based on __builtin_clzll in GCC versions < 3.4.