Re: [U-Boot] [PATCH] examples/standalone: Remove relocation compile flags for PowerPC

On Tue, Jun 15, 2010 at 10:37 PM, Peter Tyser ptyser@xes-inc.com wrote:

It looks like the -fno-toplevel-reorder flag is only available in gcc >= 4.2 (http://gcc.gnu.org/gcc-4.2/changes.html released May 2007).  So, do we add support to U-Boot to conditionally check for the gcc version like Linux to know when to use -fno-toplevel-reorder?  Or do we use a linker script that would support more versions of gcc at the cost of more complexity?

What happens if you use the flag on earlier versions of gcc? If the flag is just silently ignored, then maybe it's not such a big deal to always include it, and just add a comment saying that it only works on gcc 4.2 or higher?