On a 32-bit x86 box, I get:
--> Processing Dependency: libecal-1.2.so.3 for package: gnome-panel
--> Processing Dependency: libecal-1.2.so.3 for package: evolution
--> Finished Dependency Resolution
Error: Missing Dependency: libecal-1.2.so.3 is needed by package gnome-panel
Error: Missing Dependency: libecal-1.2.so.3 is needed by package evolution
x86_64 whines similarly...
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Bojan