http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58313
Bug ID: 58313
Summary: [4.9 Regression] kdelibs build failure
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: ipa
Assignee: unassigned at gcc dot gnu.org
Reporter: markus at trippelsdorf dot de
Building kdelibs-4.11.1 fails when linking kdecore:
...
CMakeFiles/kdecore.dir/network/k3socketdevice.o:k3socketdevice.cpp:function
_ZN8KNetwork13KSocketDeviceC2EPKNS_11KSocketBaseEP7QObject: error: undefined
reference to '_ZN8KNe
twork17KActiveSocketBaseC2EPPKvP7QObject'
CMakeFiles/kdecore.dir/network/k3socketdevice.o:k3socketdevice.cpp:function
_ZN8KNetwork13KSocketDeviceC2EPKNS_11KSocketBaseEP7QObject: error: undefined
reference to '_ZN8KNe
twork18KPassiveSocketBaseC2EPPKv'
CMakeFiles/kdecore.dir/network/k3socketdevice.o:k3socketdevice.cpp:function
_ZN8KNetwork13KSocketDeviceC1EPKNS_11KSocketBaseEP7QObject: error: undefined
reference to '_ZN8KNe
twork17KActiveSocketBaseC2EPPKvP7QObject'
CMakeFiles/kdecore.dir/network/k3socketdevice.o:k3socketdevice.cpp:function
_ZN8KNetwork13KSocketDeviceC1EPKNS_11KSocketBaseEP7QObject: error: undefined
reference to '_ZN8KNe
twork18KPassiveSocketBaseC2EPPKv'
...
I've reduced this issue to:
markus@x4 tmp % cat test.ii
namespace KNetwork {
class A {};
class KPassiveSocketBase : virtual A {
public:
KPassiveSocketBase();
};
class B : KPassiveSocketBase {
B();
};
}
using namespace KNetwork;
B::B() {}
markus@x4 tmp % g++ -c -O2 test.ii
markus@x4 tmp % nm test.o | grep _ZN8KNetwork18KPassiveSocketBaseC2EPPKv
U _ZN8KNetwork18KPassiveSocketBaseC2EPPKv
markus@x4 tmp % /usr/x86_64-pc-linux-gnu/gcc-bin/4.8.1/g++ -c -O2 test.ii
markus@x4 tmp % nm test.o | grep _ZN8KNetwork18KPassiveSocketBaseC2EPPKv
markus@x4 tmp %
