Can you merge libsunmath into libm?
On 10/23/09, Chris Quenelle <Chris.Quenelle at sun.com> wrote:
> libsunmath is a library that is included with the Sun compilers
> in both static and dynamic formats.
>
> I've been told that with C99 and the new libm functions,
> there are very few reasons to be using libsunmath anymore.
> I'd love to have feedback from libsunmath users on whether
> this might be true or not.
>
> In the compiler team we're discussing the current behavior
> of the C compiler when using -lsunmath. The C compiler
> differs from the C++ and Fortran compilers in that it doesn't
> automatically add -R/opt/.../lib all the time. Because of
> that it has special behavior so that libsunmath is linked
> statically, even when no -Bstatic was supplied.
>
> Things we could do (not mutually exclusive):
>
> 1. Add -library=sunmath (which lets us turn on RPATH)
>
> 2. Work towards EOL of libsunmath
>
> 3. remove special behavior of C compiler, this requires
> libsunmath users to use -Bstatic with -lsunmath.
> This would be an incompatible change. However, if the
> change happens, the new options would work with the old
> compiler (this has been an issue in the past).
>
> Note: By the way, we're looking for the background on the
> thou-must-not-add-RPATH-all-the-time edict. Any pointers
> would be appreciated. I didn't get very far by scanning
> the ARC cases. (If anyone inside Sun knows of a full-text
> index of ARC cases, please let me know.
>
> Note: libsunperf has a similar problem, and we're planning
> to add -library=sunperf. But we don't currently document
> -lsunperf as a supported way of using sunperf, only
> -library=sunperf (currently for Fortran and C++). So
> we don't have compatibility concerns for -lsunperf.
>
>
>
>
>
>
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>
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