Re: Error building v5.5-git on PowerPC32 - bisected to commit 7befe621ff81

From: Larry Finger
Date: Thu Feb 06 2020 - 19:29:48 EST


On 2/6/20 5:33 PM, Arvind Sankar wrote:
On Thu, Feb 06, 2020 at 06:12:13PM -0500, Arvind Sankar wrote:
On Thu, Feb 06, 2020 at 04:46:52PM -0600, Larry Finger wrote:
When building post V5.5 on my PowerBook G4 Aluminum, the build failed with the
following error:

It's not that the attributes are wrong. The problem is that BUILD_BUG_ON
requires a compile-time evaluatable condition. gcc-4.6 is apparently not
good enough at optimizing to reduce that expression to a constant,
though it was able to do it with the array accesses.

Should have noted, it fails on x86 too with gcc-4.6.4, not specific to PPC.

What pre-processor test would be correct to skip the test for gcc4?

Larry