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Opened 9 years ago
Closed 9 years ago
#331 closed defect (fixed)
Log is blank if build libraries missing with Qt GUI
| Reported by: | Tom Goddard | Owned by: | Eric Pettersen |
|---|---|---|---|
| Priority: | major | Milestone: | |
| Component: | Window Toolkit | Version: | |
| Keywords: | Cc: | gregc@… | |
| Blocked By: | Blocking: | ||
| Notify when closed: | Platform: | all | |
| Project: | ChimeraX |
Description
On the Mac the log is blank after starting ChimeraX because Qt fails to start the separate process QtWebEngineProces because it can't find the Qt frameworks. This only happens if the build directories are gone, apparently the installed ChimeraX uses the build frameworks:
$ cx
dyld: Library not loaded: @rpath/QtWebEngineCore.framework/Versions/5/QtWebEngineCore
Referenced from: /Users/goddard/ucsf/chimerax/ChimeraX.app/Contents/lib/QtWebEngineCore.framework/Helpers/QtWebEngineProcess.app/Contents/MacOS/QtWebEngineProcess
Reason: image not found
This starts ChimeraX successfully by the log remains always blank. This happened when I copied the ChimeraX.app from my build machine to my laptop which does not have the build files. Looking at the rpath fo QtWebEngineProcess shows that it is pointing to the build directories.
$ otool -l /Users/goddard/ucsf/chimerax/ChimeraX.app/Contents/lib/QtWebEngineCore.framework/Helpers/QtWebEngineProcess.app/Contents/MacOS/QtWebEngineProcess
/Users/goddard/ucsf/chimerax/ChimeraX.app/Contents/lib/QtWebEngineCore.framework/Helpers/QtWebEngineProcess.app/Contents/MacOS/QtWebEngineProcess:
...
Load command 23
cmd LC_RPATH
cmdsize 64
path @loader_path/../../../../../../../../Frameworks (offset 12)
Load command 24
cmd LC_RPATH
cmdsize 56
path /Users/goddard/ucsf/chimerax/build/lib (offset 12)
This is fixed if I change the rpath in the QtWebEngineProcess executable:
$ install_name_tool -rpath /Users/goddard/ucsf/chimerax/build/lib /Users/goddard/ucsf/chimerax/ChimeraX.app/Contents/lib /Users/goddard/ucsf/chimerax/ChimeraX.app/Contents/lib/QtWebEngineCore.framework/Helpers/QtWebEngineProcess.app/Contents/MacOS/QtWebEngineProcess
Something like this should go in our install Makefile but it needs a relative path. I tried
install_name_tool -rpath /Users/goddard/ucsf/chimerax/build/lib @executable_path/../../../../.. /Users/goddard/ucsf/chimerax/ChimeraX.app/Contents/lib/QtWebEngineCore.framework/Helpers/QtWebEngineProcess.app/Contents/MacOS/QtWebEngineProcess
but it did not work giving the same runtime loader error. Not sure what the correct RPATH is.
Fixed by setting DYLD_FRAMEWORK_PATH. Not sure if it's the best fix. Works though.