$ gdb ./Telegram 
GNU gdb (Ubuntu 7.7.1-0ubuntu5~14.04.2) 7.7.1
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Reading symbols from ./Telegram...done.
(gdb) run
Starting program: /home/simon/Downloads/Telegram/Telegram 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
libs init..
[New Thread 0x7ffff4953700 (LWP 14271)]

Program received signal SIGSEGV, Segmentation fault.
0x0000000000bf8bc9 in g_signal_connect_data ()