[Backport release/3.2.x] chore(patches): fix ldoc intermittent fail caused by LuaJIT

[team-gateway-bot]

Backport c7c44a2 from #11983.

Fix #KAG-1761

[zhongweiy]

@bungle The CI's build cache is hit and there is no build log to check in CI build log. But I verified it locally and hope I have not missed something.

@flrgh do you know whether the build cache hit in this case is expected? I changed the patch format in the latest commit (9f14932) and expect the build will run from scratch.

CI build log:
https://github.com/Kong/kong/actions/runs/7205876448/job/19629622712?pr=12143

[bungle]

@zhongweiy you have missed something:

patching file bundle/LuaJIT-2.1-20220411/src/lj_record.c
Hunk #1 succeeded at 970 (offset -5 lines).

This is how I test these:

#!/bin/zsh
rm -Rf openresty-1.21.4.1
tar zxvf openresty-1.21.4.1.tar.gz
cd openresty-1.21.4.1/
for i in ~/Sources/kong/build/openresty/patches/*.patch; do patch -p1 < $i; done
cd ../..

Please use gnu patch.

[bungle]

see comment above.

[zhongweiy]

updated. I should come up some patch to make this process easier.

[bungle]

updated. I should come up some patch to make this process easier.

@zhongweiy and also a test that does not allow non-cleanly applying patches, or upgrading openresty and then make patches not apply correctly, should also be blocked.