build failure since commit 'xt: Rewrite unsupported compat expression dumping'

[Neels Hofmeyr <nhofmeyr@sysmocom.de>]

Hi,

building current master of https://git.netfilter.org/nftables i get a build
error that i didn't see a few weeks ago. I thought I'd report it here.

I bisected to identify this commit to be the start of build failures for me:

 commit 79195a8cc9e9d9cf2d17165bf07ac4cc9d55539f
 Author: Phil Sutter <phil@nwl.cc>
 Date:   Thu Nov 24 14:17:17 2022 +0100
 "xt: Rewrite unsupported compat expression dumping"

This is the build error at above commit:

   CC       xt.lo
   CC       libparser_la-scanner.lo
 ../src/nftables/src/scanner.l: In function 'nft_lex':
 ../src/nftables/src/scanner.l:804:60: error: 'XT' undeclared (first use in this function); did you mean 'CT'?
 ../src/nftables/src/scanner.l:804:60: note: each undeclared identifier is reported only once for each function it appears in

On 'master', the build error is different:

   CC       libparser_la-scanner.lo
 ../src/nftables/src/scanner.l: In function 'nft_lex':
 ../src/nftables/src/scanner.l:625:10: error: 'VXLAN' undeclared (first use in this function); did you mean 'VLAN'?
 ../src/nftables/src/scanner.l:625:10: note: each undeclared identifier is reported only once for each function it appears in
 ../src/nftables/src/scanner.l:626:10: error: 'VNI' undeclared (first use in this function)
 ../src/nftables/src/scanner.l:628:10: error: 'GENEVE' undeclared (first use in this function)
 ../src/nftables/src/scanner.l:630:61: error: 'GRE' undeclared (first use in this function); did you mean 'GTE'?
 ../src/nftables/src/scanner.l:631:61: error: 'GRETAP' undeclared (first use in this function)
 ../src/nftables/src/scanner.l:812:60: error: 'XT' undeclared (first use in this function); did you mean 'CT'?

~N