The variables "[fReopenDebugLog](https://github.com/bitcoin/bitcoin/blob/fa24439ff3d8ab5b9efaf66ef4dae6713b88cb35/src/util.h#L53)" and "[fRequestShutdown](https://github.com/bitcoin/bitcoin/blob/fae78fa81802b5387054715c339f286ef436408e/src/init.cpp#L128)" should [use the data type "sig_atomic_t"](https://www.securecoding.cert.org/confluence/display/c/SIG31-C.+Do+not+access+shared+objects+in+signal+handlers) (instead of "bool").

I reported this issue for [another evolving software](https://github.com/Electric-Coin-Company/zcash/issues/678) before.

{
#if BOOST_VERSION >= 105600
    return boost::thread::physical_concurrency();
#else 
    return boost::thread::hardware_concurrency();
#endif
}
std::string CopyrightHolders(const std::string& strPrefix)
{
    std::string strCopyrightHolders = strPrefix + _(COPYRIGHT_HOLDERS);
    if (strCopyrightHolders.find("%s") != strCopyrightHolders.npos) {
        strCopyrightHolders = strprintf(strCopyrightHolders, _(COPYRIGHT_HOLDERS_SUBSTITUTION));
    }
    if (strCopyrightHolders.find("Bitcoin Core developers") == strCopyrightHolders.npos) {
        strCopyrightHolders += "\n" + strPrefix + "The Bitcoin Core developers";
    }
    return strCopyrightHolders;
}