Incorrect use of USE_XATTR in coreutils-8.4

[Adam Sampson]

Hiya,

I've just built coreutils 8.4 on a machine with libattr installed, and
found that tests/cp/cp-mv-enotsup-xattr was failing because cp was
incorrectly giving the "cp is built without xattr support" error
message. The problem appears to be that the configure script defines
USE_XATTR to "yes" if attr support is enabled, but copy.c and cp.c use
"#if USE_XATTR"/"#if !USE_XATTR" to test it. The attached patch changes
these to use #ifdef/#ifndef, which makes the testsuite pass for me.

Thanks,

-- 
Adam Sampson <address@hidden>                         <http://offog.org/>

usexattr.diff
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