[fpc-devel] Another thread about the fact that official FPC releases are *unnecessarily* non-representative of the platforms it actually runs on

Florian Klämpfl florian at freepascal.org
Sun Sep 27 22:05:47 CEST 2020

Am 27.09.20 um 22:03 schrieb Florian Klämpfl via fpc-devel:
> Am 27.09.20 um 21:50 schrieb Florian Klämpfl via fpc-devel:
>> Am 27.09.20 um 21:38 schrieb denisgolovan via fpc-devel:
>>>> See above. It perfectly shows why it is frightening (not the basic
>>>> stuff, but the transcendent functions):
>>>> - there are little libraries being really IEEE compliant for float128
>>>> - if they are IEEE compliant, their license does not allow to use the
>>>> code in the FPC rtl.
>>> Ok, the license is the problem.
>>> However I still fail to see why full 128bit support is necessary for 
>>> 80bit Extended.
>> Not for 80 bit extended, but it would be the clean solution with 
>> float128 support being optional in some architectures (RiscV, Sparc64, 
>> PPC64). So if we change it, we should do it right as 80 Bit has the 
>> same problem: missing transcendent functions in software.
> Of course, what we could do for the compiler (not the rtl!): to 
> translate libquadmath. It is LPGL so perfectly usable with in the compiler.

What's strange though:


It contains a sun copyright and not LGPL header ...

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