[PATCH 04/12] Add a generic significand implementation

[Joseph Myers]

This patch has, as shown by build-many-glibcs.py, broken the build for 
m68k, because of how files there include files for other functions that 
operate as a form of generic implementation, and includes of 
<s_significand.c> seem to end up including the file generated from the 
template.  I'm guessing that rearranging things so that s_log1p.c rather 
than s_significand.c is the main implementation file used for that pair of 
functions should fix things.

-- 
Joseph S. Myers
joseph@codesourcery.com