When IDE mode is enabled (-I), warnings are not shown because:
1. The process_result() function only shows output in verbose mode,
not IDE mode
2. When there are warnings (stderr output), the build is considered
"failed" and retried. The retry finds the object files already up
to date from the first build, so make does not recompile them and
produces no warnings. The second result (with empty stderr) then
overwrites the first, losing the warnings.
Fix this by:
- Adding IDE mode handling in process_result() to write stderr directly
- Changing the retry logic to only retry on actual failures
(return_code != 0), not on warnings
Fixes: 6a30a2666008 ("buildman: Support running from an IDE")
Co-developed-by: Claude <noreply@anthropic.com>
Signed-off-by: Simon Glass <simon.glass@canonical.com>
0cbcd78c79