--- zzzz-none-000/linux-3.10.107/arch/x86/um/ptrace_32.c 2017-06-27 09:49:32.000000000 +0000 +++ scorpion-7490-727/linux-3.10.107/arch/x86/um/ptrace_32.c 2021-02-04 17:41:59.000000000 +0000 @@ -6,6 +6,7 @@ #include #include #include +#include #include extern int arch_switch_tls(struct task_struct *to);