Compilation error

[foxcpp]

Originally was reported downstream.

[ 95%] Linking CXX executable Kepka
CMakeFiles/Kepka.dir/SourceFiles/history/history.cpp.o: In function `History::updateSendActionNeedsAnimating(long long, bool)':
history.cpp:(.text+0x764f): undefined reference to `lang(LangKey)'
history.cpp:(.text+0x7776): undefined reference to `lang(LangKey)'
history.cpp:(.text+0x7a1a): undefined reference to `lang(LangKey)'
history.cpp:(.text+0x7a55): undefined reference to `lang(LangKey)'
history.cpp:(.text+0x7b06): undefined reference to `lang(LangKey)'
CMakeFiles/Kepka.dir/SourceFiles/history/history.cpp.o:history.cpp:(.text+0x7b61): more undefined references to `lang(LangKey)' follow
CMakeFiles/Kepka.dir/SourceFiles/platform/linux/linux_libs.cpp.o: In function `Platform::Libs::start()':
linux_libs.cpp:(.text+0x17): undefined reference to `cDebug()'
collect2: error: ld returned 1 exit status
make[2]: *** [Telegram/CMakeFiles/Kepka.dir/build.make:4690: Telegram/Kepka] Error 1
make[1]: *** [CMakeFiles/Makefile2:1687: Telegram/CMakeFiles/Kepka.dir/all] Error 2
make: *** [Makefile:95: all] Error 2

Looks like this problem is present only when building in release mode.