Add libvirt.la into qemucapsprobemock_la_LIBADD because that mock uses bunch of libvirt internal functions. Without this patch the following error occurs: $ ./qemucapsprobe /usr/bin/qemu-system-x86_64 ... warning : virQEMUCapsLogProbeFailure:4204 : Failed to probe capabilities for /usr/bin/qemu-system-x86_64: internal error: Failed to probe QEMU binary with QMP: /usr/bin/qemu-system-x86_64: symbol lookup error: .../qemucapsprobemock.so: undefined symbol: virJSONValueObjectHasKey Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com&gt; --- TBH I didn't go into details why this is needed. It still seems fishy to me. Not only that I get that error above as a libvirt error, but if i add just libvirt_util.la in there, I get: .../qemucapsprobe: symbol lookup error: .../qemucapsprobemock.so: undefined symbol: libvirt_event_poll_update_handle_semaphore If anyone has a better idea how this should be fixed, please suggest that. tests/Makefile.am | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tests/Makefile.am b/tests/Makefile.am index 05db6b1192a4..24ea41f5176c 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -619,7 +619,7 @@ qemucapsprobe_LDADD = \ qemucapsprobemock_la_SOURCES = \ qemucapsprobemock.c qemucapsprobemock_la_LDFLAGS = $(MOCKLIBS_LDFLAGS) -qemucapsprobemock_la_LIBADD = $(MOCKLIBS_LIBS) +qemucapsprobemock_la_LIBADD = $(MOCKLIBS_LIBS) ../src/libvirt.la qemucommandutiltest_SOURCES = \ qemucommandutiltest.c \ -- 2.17.0