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INT_MULTIPLY_WRAPV compile warning

From: Pádraig Brady
Subject: INT_MULTIPLY_WRAPV compile warning
Date: Wed, 25 Jan 2017 11:21:02 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.2.0 
FYI when compiling coreutils on centos 5 (gcc-4.1.2) I noticed:
any use of INT_MULTIPLY_WRAPV gave the warning:

  src/pr.c:1274: warning: comparison is always false due to limited range of 
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