[Webkit-unassigned] [Bug 30890] New: Windows build: changes in header files do not always trigger correct rebuild.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=30890

           Summary: Windows build: changes in header files do not always
                    trigger correct rebuild.
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Windows Vista
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tools / Tests
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: dimich at chromium.org


Example: recent change to JavaScriptCore/wtf/MessageQueue.h broke the Windows
build because MessageQueue.h is not included anywhere in JavaScriptCore so the
project JavaScriptCore was not build. this project has "post-build step" which
make copy of header files to the build directory from where the subsequent
WebCore build includes JSC headers. As a result, the stale header of
MessageQueue.h was used and build broke.

Changing a cpp file from wtf caused recompile of JavaScriptCore and updated the
headers.

I'm not sure what the right fix for this is.

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