[build, doc] Obsolete Solaris 10 support

[Rainer Orth]

This patch implements the Solaris 10 obsoletion announced yesterday:

	https://gcc.gnu.org/ml/gcc/2018-10/msg00139.html

Bootstrapped on i386-pc-solaris2.10 without and with --enable-obsolete
and inspected gccinstall.info.  The contrib-list.mk part is untested,
but completely mechanical.

Installed on mainline.

	Rainer

-- 
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University


2018-10-15  Rainer Orth  <ro@CeBiTec.Uni-Bielefeld.DE>

	contrib:
	* config-list.mk (LIST): Switch to i686-solaris2.11,
	sparc64-sun-solaris2.11.

	gcc:
	* config.gcc: Obsolete *-*-solaris2.10*.
	* doc/install.texi (Specific, *-*-solaris2*): Document it.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: sol10-obsolete.patch
Type: text/x-patch
Size: 2439 bytes
Desc: not available
URL: <http://gcc.gnu.org/pipermail/gcc-patches/attachments/20181016/d4f2ef4c/attachment.bin>