[libvirt] [PATCH] build: fix 'make check' linkage with dtrace

Building on Linux with dtrace enabled was failing 'make check': CCLD nodeinfotest ../src/.libs/libvirt_test.a(libvirt_net_rpc_client_la-virnetclient.o): In function `virNetClientNew': /home/remote/eblake/libvirt/src/rpc/virnetclient.c:162: undefined reference to `libvirt_rpc_client_new_semaphore' On looking further, I see some earlier warnings emitted from libtool: *** Warning: Linking the shared library libvirt.la against the non-libtool *** objects probes.o is not portable! Since src/probes.o is only built on Linux, and even then, only when dtrace is enabled, this failure does not affect other platforms, and despite libtool warning that it is not generally portable, it is not a problem for our use-case in libvirt.la. But it turns out that while libtool is willing to jam raw .o files into an installed shared library (libvirt.la becomes libvirt.so), it is NOT willing to jam the same .o file into the convenience library libvirt_test.la. Perhaps this is a bug in libtool, but even if we get libtool fixed, libvirt must continue to build on platforms with older libtool. So, the fix is the same as we are already using for the libvirt_lxc executable - don't rely on the .o file being in the convenience library, but instead use LDADD to pull it in directly. * tests/Makefile.am (PROBES_O): New macro. (LDADDS): Use it to fix link errors. --- I'm still in the middle of running ./autobuild.sh, but if that fixes the VPATH build there, then I will push this under the build-breaker rule. tests/Makefile.am | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/tests/Makefile.am b/tests/Makefile.am index cbbbc6f..8202fa0 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -29,6 +29,11 @@ INCLUDES += \ -DTEST_DRIVER_DIR=\"$(top_builddir)/src/.libs\" endif +PROBES_O = +if WITH_DTRACE +PROBES_O += ../src/probes.o +endif + LDADDS = \ $(STATIC_BINARIES) \ $(LIBXML_LIBS) \ @@ -39,6 +44,7 @@ LDADDS = \ $(YAJL_LIBS) \ $(WARN_CFLAGS) \ ../src/libvirt_test.la \ + $(PROBES_O) \ ../gnulib/lib/libgnu.la \ $(LIBSOCKET) \ $(COVERAGE_LDFLAGS) -- 1.7.4.4