Mesa armhf builds don't depend on libmirclient

[Robert Ancell]

Have a look at the libegl1-mesa package built for armhf - it doesn't depend on libmirclient:

$ dpkg -I libegl1-mesa_9.2~git20130611.761320b1-0ubuntu0+mir3-jenkins81saucy0_armhf.deb
...
Depends: libc6 (>= 2.4), libdrm2 (>= 2.4.25), libgbm1 (>= 7.11~1), libudev1 (>= 183), libwayland-client0 (>= 1.0.2), libwayland-server0 (>= 1.0.2), libx11-6, libx11-xcb1, libxcb-dri2-0 (>= 1.8), libxcb-xfixes0, libxcb1
...

This causes armhf builds to fail that don't depend on libmirclient, e.g.:
https://launchpadlibrarian.net/143248120/buildlog_ubuntu-saucy-armhf.unity-system-compositor_0.0.1bzr29saucy0.77%2Bbuild2_FAILEDTOBUILD.txt.gz
...
/usr/bin/c++ -g -O2 -fstack-protector --param=ssp-buffer-size=4 -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2 -std=c++11 -Wall -O2 -g -DNDEBUG -Wl,-Bsymbolic-functions -Wl,-z,relro CMakeFiles/unity-system-compositor.dir/main.cpp.o CMakeFiles/unity-system-compositor.dir/dm_connection.cpp.o CMakeFiles/unity-system-compositor.dir/system_compositor.cpp.o -o ../bin/unity-system-compositor -rdynamic -lmirserver -lpthread -lboost_chrono -lboost_date_time -lboost_filesystem -lboost_system -lboost_thread -lboost_program_options -lboost_regex -lpthread
/usr/lib/arm-linux-gnueabihf/libEGL.so.1: undefined reference to `mir_egl_mesa_display_is_valid'
collect2: error: ld returned 1 exit status
make[3]: *** [bin/unity-system-compositor] Error 1

This works correctly on i386 and amd64.

Could be related in some was to bug 1168989?

[Robert Ancell (robert-ancell)]

From an armhf build [1]:

dh_shlibdeps -s
...
dpkg-shlibdeps: warning: symbol mir_egl_mesa_display_is_valid used by debian/libegl1-mesa/usr/lib/arm-linux-gnueabihf/libEGL.so.1.0.0 found in none of the libraries

So dpkg is not picking up the dependency correctly.

Does not occur in an amd64 build [2].

[1] https://launchpadlibrarian.net/143308747/buildlog_ubuntu-saucy-armhf.mesa_9.2~git20130611.761320b1-0ubuntu0%2Bmir4-jenkins82saucy0_UPLOADING.txt.gz
[2] https://launchpadlibrarian.net/143262223/buildlog_ubuntu-saucy-amd64.mesa_9.2~git20130611.761320b1-0ubuntu0%2Bmir4-jenkins82saucy0_UPLOADING.txt.gz

[Robert Ancell (robert-ancell)]

Fix committed to mesa to workaround this issue by explicitly depending on libmirclient-dev (which depends on libmirclient1)

[Robert Ancell (robert-ancell)]

Still failing the build:
https://launchpadlibrarian.net/143441190/buildlog_ubuntu-saucy-armhf.unity-system-compositor_0.0.1bzr29saucy0.87_FAILEDTOBUILD.txt.gz

[Alexandros Frantzis (afrantzis)]

Is this still a valid issue?

[Timo Aaltonen (tjaalton)]

Mir EGL platform is gone