[regression] unity-system-compositor & qtmir FTBFS with Mir 0.9 source (libmirprotobuf.so.0 not found)

[Daniel van Vugt]

[regression] unity-system-compositor FTBFS with Mir 0.9 source (r2019)

Linking CXX executable ../bin/unity-system-compositor
/usr/bin/ld: warning: libmirprotobuf.so.0, needed by /home/dan/silo.toy/lib/libmirserver.so, not found (try using -rpath or -rpath-link)
/home/dan/silo.toy/lib/libmirserver.so: undefined reference to `mir::protobuf::DisplayServer::create_surface(google::protobuf::RpcController*, mir::protobuf::SurfaceParameters const*, mir::protobuf::Surface*, google::protobuf::Closure*)'
/home/dan/silo.toy/lib/libmirclient.so: undefined reference to `mir::protobuf::Surface::default_instance_'
/home/dan/silo.toy/lib/libmirserver.so: undefined reference to `mir::protobuf::DisplayServer::next_buffer(google::protobuf::RpcController*, mir::protobuf::SurfaceId const*, mir::protobuf::Buffer*, google::protobuf::Closure*)'
/home/dan/silo.toy/lib/libmirserver.so: undefined reference to `mir::protobuf::Buffer::Buffer()'
/home/dan/silo.toy/lib/libmirclient.so: undefined reference to `mir::protobuf::Connection::default_instance_'
/home/dan/silo.toy/lib/libmirclient.so: undefined reference to `mir::protobuf::Debug_Stub::Debug_Stub(google::protobuf::RpcChannel*)'

...

[PS Jenkins bot (ps-jenkins)]

Fix committed into lp:mir at revision None, scheduled for release in mir, milestone 0.9.0

[Kevin DuBois (kdub)]

Trying to build the stack with sbuild I get this error:

cd /«BUILDDIR»/unity-system-compositor-0.0.5+15.04.20141109/obj-arm-linux-gnueabihf/spinner && /usr/bin/cmake -E cmake_link_script CMakeFiles/unity-system-compositor-spinner.dir/link.txt --verbose=1
/usr/bin/arm-linux-gnueabihf-g++-4.9 -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -std=c++11 -Wall -Wl,-Bsymbolic-functions -Wl,-z,relro CMakeFiles/unity-system-compositor-spinner.dir/eglapp.c.o CMakeFiles/unity-system-compositor-spinner.dir/eglspinner.c.o CMakeFiles/unity-system-compositor-spinner.dir/unity-system-compositor-spinner_automoc.cpp.o -o ../bin/unity-system-compositor-spinner -rdynamic -lEGL -lcairo -lglib-2.0 -landroid-properties -lGLESv2 -lmirclient -lmirprotobuf
/usr/bin/ld: cannot find -lmirprotobuf

So the pkg-config flag has made it in, but the libmirprotobuf.so symlink is missing because of its removal in debian/rules
http://bazaar.launchpad.net/~mir-team/mir/development-branch/view/head:/debian/rules#L57
and the build system can't find the library

[Daniel van Vugt (vanvugt)]

Invalid. The error was my build process finding the wrong version of libmirprotobuf.so.0 (from the system instead of from the local silo).

[PS Jenkins bot (ps-jenkins)]

Fix committed into lp:mir at revision None, scheduled for release in mir, milestone 0.9.0

[Daniel van Vugt (vanvugt)]

Fix fully reverted in r2049. Bug remains invalid.