186829 - Very obscure gcc 2.95.3 compiler problem building mozilla

Status: RESOLVED INVALID

(SeaMonkey :: Build Config, defect)

Description

[tenthumbs]

I've stumbled across a _very_ obscure procedure that produces non-functional
mozillas. You need all three if gcc 2.95.3, -O and -DDEBUG to reproduce it.

These bugzilla text boxes are way too small so read the attachment.

Comment 1

[tenthumbs]

Attachment: description

Building on an Intel platform.

Comment 2

[hacker formerly known as [e-mail]]

Obscure compiler bugs are nice to know about but I fail to see how this can be
considered a Mozilla bug.  At a glance, there doesn't seem to be anything wrong
with that particular snippet of code.  I would suggest submitting the bug to the
gcc team and/or trying a newer version of gcc to see if it fixes the problem.

Comment 3

[tenthumbs]

Well, mozilla has been known to alter code to work around other compiler 
bugs. Maybe it should here as well. 

It would be nice if this made it into some documentations some where. It 
would be even nicer if configure would warn about compiler and option 
configurations known to be buggy.