[Bug libstdc++/39491] [4.2/4.3 regression] symbol __signbitl@GLIBCXX_3.4 in libstdc++ exported
------- Comment #31 from dave at hiauly1 dot hia dot nrc dot ca 2009-04-29 01:03 -------
Subject: Re: [4.2/4.3 regression] symbol __signbitl@GLIBCXX_3.4 in libstdc++
> Also, libstdc++.so is definitely not the right home for __signbitl symbol, so
> we definitely shouldn't allow any newly linked program to use symbol from that
> library. If __signbitl is ever needed (prove it), then it belongs to libc.so
> and libm.so, not into libstdc++.so.
I agree. Further, the implementation that leaked in 4.2 and 4.3 may have
been broken since it assumed a 128-bit long double format.
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