xdiff: avoid compiler warnings with XDL_FAST_HASH on 32-bit machines
Import macro REPEAT_BYTE from Linux (arch/x86/include/asm/word-at-a-time.h) to avoid 64-bit integer literals, which cause some 32-bit compilers to print warnings. Reported-by: NØyvind A. Holm <sunny@sunbase.org> Signed-off-by: NRene Scharfe <rene.scharfe@lsrfire.ath.cx> Signed-off-by: NJunio C Hamano <gitster@pobox.com>
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