The LLVMBasedICFGGlobCtorDtorTest needs LLVMLinker, so we better link…

… explicitly, instead of relying on transitive linkage

unittests/PhasarLLVM/ControlFlow/CMakeLists.txt

@@ -12,6 +12,7 @@ set(ControlFlowSources
 	LLVMBasedICFGSerializationTest.cpp
 )
 
+set(LLVM_LINK_COMPONENTS Linker) # The CtorDtorTest needs the linker
 foreach(TEST_SRC ${ControlFlowSources})
 	add_phasar_unittest(${TEST_SRC})
 endforeach(TEST_SRC)