$ LANG=C perl horses_gtk 
*** glibc detected *** perl: realloc(): invalid pointer: 0x���
3 ***
*** unhandled exception in callback:
***   `<span foreground="bl...' is not of type Gtk2::Widget at horses_gtk line 209.
***  ignoring at horses_gtk line 228.
Abortado (`core' generado)
$ LANG=C perl horses_gtk  
Violación de segmento (`core' generado)
$ file core 
core: ELF 64-bit LSB core file x86-64, version 1 (SYSV), SVR4-style, from 'perl horses_gtk'
$ ls -lh core 
-rw------- 1 user group 80M abr  2 15:36 core