------- 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 __signb...@glibcxx_3.4 in libstdc++ 
exported

> 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.

Dave


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39491

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