GCC trunk porting.

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+[[meta copyright="Copyright © 2008 Free Software Foundation, Inc."]]
+
+[[meta license="""[[toggle id="license" text="GFDL 1.2+"]][[toggleable
+id="license" text="Permission is granted to copy, distribute and/or modify this
+document under the terms of the GNU Free Documentation License, Version 1.2 or
+any later version published by the Free Software Foundation; with no Invariant
+Sections, no Front-Cover Texts, and no Back-Cover Texts.  A copy of the license
+is included in the section entitled
+[[GNU_Free_Documentation_License|/fdl]]."]]"""]]
+
+For GCC trunk:
+
+Debian package has patches (for 4.3).  Some have been forwarded upstream.  (And
+have been ignored.)  [[Thomas_Schwinge|tschwinge]] is working on getting them
+integrated.
+
+
+Additionally:
+
+  * `libgcc/configure.ac` might need to be aligned for us to the `*linux*`
+    cases.  Check.
+
+        checking whether decimal floating point is supported... no
+        checking whether fixed-point is supported... no
+
+  * Also in other places: configure fragments that have `*linux*` cases
+    might/should often contain those for us (and GNU/k*BSD) as well.