[Webkit-unassigned] [Bug 38054] [Qt] Build dependency problems

Tue Jul 26 07:43:10 PDT 2011

https://bugs.webkit.org/show_bug.cgi?id=38054

--- Comment #7 from Jocelyn Turcotte <jocelyn.turcotte at nokia.com>  2011-07-26 07:43:10 PST ---
I think that adding all the .pro and .pri files to the dependency of each .o file would be less annoying for the bots, but extremely more annoying for developers (adding or removing any line to i.e. SOURCES or HEADERS in those files will trigger a full rebuild on their machine).

The "cleanest" solution I would see is to centralize the DEFINES modifications in one file (called config.pri or something) and make that file a dependency for every copiled .o
There is also no way I know of with qmake to add an additional dependency to all object files, so we might have to hack some QMAKE_EXTRA_TARGETS that would depend on this file and do something like touching all config.h files

That's hacky, ugly, probably going to be another thing making this build system a burden and I personally prefer it the way it is right now, but that's because I'm not the one that has to reset those bots each time an incremental build isn't possible.

To explore other solutions, how often are those bots failing in normal cases? What would be the cost of automatically forcing a clean build when an incremental build failed?

Something like:
build-webkit --qt || (rm -rf $WEBKITOUTPUTDIR ; build-webkit --qt)

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