Remove obsolete Solaris 10 support

[Rainer Orth]

Hi Jonathan,

> On 13/05/19 13:39 +0200, Rainer Orth wrote:
>>	libstdc++-v3:
>>	* config/os/solaris/solaris2.10: Move to ...
>>	* config/os/solaris: ... this.
>>	* configure.host (os_include_dir): Adapt.
>>	(abi_baseline_pair): Remove Solaris 10 handling.
>>	* config/abi/post/i386-solaris2.10: Remove.
>>	* config/abi/post/sparc-solaris2.10: Remove.
>>	* config/abi/post/i386-solaris2.11: Rename to ...
>>	* config/abi/post/i386-solaris: ... this.
>>	* config/abi/post/sparc-solaris2.11: Rename to ...
>>	* config/abi/post/sparc-solaris: ... this.
>>
>>	* libsupc++/new_opa.cc [_GLIBCXX_HAVE_MEMALIGN] [__sun__]: Remove
>>	workaround.
>
> It's not important, but the actual condition here uses __sun not
> __sun__.

thanks for catching this.

	Rainer

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Rainer Orth, Center for Biotechnology, Bielefeld University