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#!/bin/sh
# There is no way to make clang's "argument unused" warning fatal. So when
# configure checks for supported flags, it runs $CXX and $LD via this
# wrapper.
#
# Ideally the search string would also include 'clang: ' but this output might
# depend on clang's argv[0].
if out=$("$@" 2>&1); then
echo "$out"
if echo "$out" | grep 'warning: argument unused' >/dev/null; then
echo "$0: found clang warning"
exit 1
else
exit 0
fi
else
code=$?
echo "$out"
exit $code
fi
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