the -H argument compatibility

[ljhmily]

version 4.0.3, while compile at centos 7 or centos 8, it's glibc lowest support is 2.14, and it's not support with centos 6
./xxxx: /lib64/libc.so.6: version `GLIBC_2.14' not found (required by ./xxxx)

and if compile with centos 6, it's not support -H argument.
shc shll=bash
shc [-i]=-c
shc [-x]=exec '%s' "$@"
shc [-l]=
shc opts=
shc: cc /root/xxxx.sh.x.c -o /root/xxxx
/root/xxxx.sh.x.c:684: error: invalid use of undefined type 'struct seccomp_data'
/root/xxxx.sh.x.c:686: error: 'SECCOMP_RET_KILL' undeclared here (not in a function)
/root/xxxx.sh.x.c:689: error: invalid use of undefined type 'struct seccomp_data'
/root/xxxx.sh.x.c:692: error: 'SECCOMP_RET_ALLOW' undeclared here (not in a function)
/root/xxxx.sh.x.c: In function 'seccomp_hardening':
/root/xxxx.sh.x.c:711: error: 'SECCOMP_MODE_FILTER' undeclared (first use in this function)
/root/xxxx.sh.x.c:711: error: (Each undeclared identifier is reported only once
/root/xxxx.sh.x.c:711: error: for each function it appears in.)
shc: Success