This is not expose in most historical versions of glibc, nor non-glibc impls. We must use our wrapper API instead. Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com&gt; --- Pushed as build fix src/qemu/qemu_shim.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_shim.c b/src/qemu/qemu_shim.c index 4c06f15779..ef0ba086b5 100644 --- a/src/qemu/qemu_shim.c +++ b/src/qemu/qemu_shim.c @@ -176,8 +176,8 @@ int main(int argc, char **argv) } if (verbose) - g_printerr("%s: %lld: initializing libvirt %d\n", - argv[0], deltams(), gettid()); + g_printerr("%s: %lld: initializing libvirt %llu\n", + argv[0], deltams(), virThreadSelfID()); if (virInitialize() < 0) { g_printerr("%s: cannot initialize libvirt\n", argv[0]); -- 2.25.4