Hi all,
I'm a user and occasional contributor to Eclipse CDT. I
want to ask for help in tracking down the cause of a
problem that is biting me after updating.
I've just updated to Eclipse 2019-06 and with it CDT
9.8.0 (after using 2019-03 with 9.7.2). With that update,
one of my projects is suddenly showing a lot of "Symbol
'name' could not be resolved" for no clear reason and with
no apparent solution; I've tried the usual tricks such as
re-building the index.
From a little investigation, it appears that the errors
are shown if the symbol is defined in a header file that
is included only indirectly. If the symbol is defined in a
header that is included directly from the source file
where the symbol is referenced, everything's ok.
For example I have a line of code:
if (signame == "HUP") return SIGHUP;
The "SIGHUP" is underlined and reported as
symbol-not-resolved. However, the appropriate header file
(csignal) is *indirectly* included. If I add "#include
<csignal>" to the top of the source file containing
the line of code above, the problem does go away. Note
that even when the "Symbol could not be resolved" error is
displayed, going to the declaration works just fine.
Going back to a pre-CDT 9.8.0 build (which I had built
myself previously) in Eclipse 2019-06, the problem goes
away.
I wanted to bi-sect this issue to see if I can identify
when it began. However, it seems I'm unable to build the
tagged CDT 9.8.0 (using maven):
[INFO] Fetching p2.index from http://download.eclipse.org/cbi/updates/license/2.0.1.v20180423-1114/
[INFO] Adding repository
http://download.eclipse.org/eclipse/updates/4.12milestones/S-4.12RC1a-201905310245
[ERROR] Failed to resolve target definition
/home/davmac/eclipse-cdt/ws/cdt-git/releng/org.eclipse.cdt.target/cdt.target:
Failed to load p2 metadata repository from location
http://download.eclipse.org/eclipse/updates/4.12milestones/S-4.12RC1a-201905310245/:
No repository found at
http://download.eclipse.org/eclipse/updates/4.12milestones/S-4.12RC1a-201905310245.
-> [Help 1]
So, does anyone have any clues about the problem itself,
and secondly can anyone help with building non-HEAD using
maven?
Thanks,
Davin
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