Sync configure.ac with gcc

[Bernd Schmidt]

DJ reminded me to apply a toplevel gcc patch to the src repository as 
well.  I've committed the following which syncs the two (the change to 
add linux-uclibc was committed previously by someone else only to the 
gcc repository; I've included it).


Bernd
-- 
This footer brought to you by insane German lawmakers.
Analog Devices GmbH      Wilhelm-Wagenfeld-Str. 6      80807 Muenchen
Sitz der Gesellschaft Muenchen, Registergericht Muenchen HRB 40368
Geschaeftsfuehrer Thomas Wessel, William A. Martin, Margaret Seif
-------------- next part --------------
An embedded and charset-unspecified text was scrubbed...
Name: enable-mudflap.diff
URL: <https://sourceware.org/pipermail/binutils/attachments/20070629/9c85d857/attachment.ksh>