Comment # 9 on bug 1140595 from Fabian Vogt

(In reply to Bj�rn Voigt from comment #8)
> I compiled with -flto enabled, but Linphone works with LTO.
> 
> CFLAGS=-flto CXXFLAGS=-flto LDFLAGS=-flto cmake -DENABLE_CXX_WRAPPER=ON
> -DENABLE_ROOTCA_DOWNLOAD=OFF -DENABLE_ZRTP=ON -DENABLE_LDAP=ON
> -DENABLE_STRICT=OFF -DENABLE_STATIC=OFF -DENABLE_GTK_UI=ON
> -DCMAKE_INSTALL_PREFIX:PATH=/usr/local/linphone ..
> make && make install
> /usr/local/linphone/bin/linphone

You built linphone instead of linphoneqt, which are different things. The crash
happens in linphoneqt.

Disabling LTO doesn't have an effect there either though, the issue is that it
does some weird stuff in the translation catalog creation which can lead to
producing empty files instead.

I submitted a patch: https://build.opensuse.org/request/show/727450

This should be submitted upstream as well.