I'm a little rusty, so I suspect I'm doing something very stupid, but I'm having trouble linking to Marble. I've updated to the latest version available to my Arch Linux distribution, and I can't get an application to link against Marble. This is from a dummy application written for Qt4, using a qmake project file.

Specifically, I'm running into this error:

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mainwindow.cpp:(.text+0x2cc): undefined reference to `Marble::SearchRunnerManager::searchPlacemarks(QString const&, Marble::GeoDataLatLonAltBox const&, int)'

The linking command is:

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g++ -Wl,-O1,--sort-common,--as-needed,-z,relro -Wl,-O1 -o modal main.o mainwindow.o preferences.o moc_mainwindow.o moc_preferences.o    -L/usr/lib -lmarblewidget -lQtGui -lQtCore -lpthread

I've checked the library .so file using grep, and I do get a hit from searchPlacemarks, but somehow linking isn't working. Any ideas what I'm doing wrong? I'll post complete code if that'll help, but I'm guessing that given that given that the source file that includes the SearchRunnerManager.h header compiles just fine, my code is fine, it's something about how I'm compiling that's off.

Any ideas?

It looks like you're including a different version of "SearchRunnerManager.h" than shipped with the library you're linking against. In KDE SC 4.14 the GeoDataLatLon*Alt*Box parameter changed to GeoDataLatLonBox, i.e. without "Alt".

HTH

Phew. I never would have spotted that.

I have different copies of the library/headers in /usr/{lib,include} and /usr/local{lib,include} because I'm playing with KDE4 and KDE5 in different versions of this project. Seemed like a good idea... why did I bother with different versions of the headers? In case the Arch repositories had an older version than the KDE5 version I had in /usr/local. Trouble is, I'm the slow one with the updates.

I guess I'll wrestle with my project file to make sure I'm including the right version of the headers. And update my KDE5 compile of Marble.

Thanks!