[Bug target/34484] pulls in allegedly unneeded floatingpoint exception access funcs

["joseph at codesourcery dot com" <gcc-bugzilla at gcc dot gnu dot org>]

------- Comment #12 from joseph at codesourcery dot com  2008-06-24 12:36 -------
Subject: Re:  pulls in allegedly unneeded floatingpoint
 exception access funcs

On Tue, 24 Jun 2008, aldot at gcc dot gnu dot org wrote:

> libdecnumber hunk could look like this:

libdecnumber's configure.ac is for the host, not the target.  As such, it 
needs to remain in sync with gcc's.  I'm pretty sure it's deliberate that 
it still needs to select a format even with --disable-decimal-float.

The logic selecting for the target is in libgcc/configure.ac.  That's the 
only place disabling without <fenv.h> might make sense (and if an explicit 
--enable-decimal-float={yes,bid,dpd} is given without <fenv.h>, give an 
error).  The only reason this really makes sense is that you can 
legitimately have both glibc and uClibc multilibs, some with <fenv.h> and 
some without, and libgcc's configure is run once for each multilib.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=34484