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[PATCH] ci: do not die on deprecated-declarations warning

From
Junio C Hamano <gitster@pobox.com>
Date
Jan 14, 2023, 03:47 UTC
Message-ID
<xmqqv8l9n5fj.fsf@gitster.g>

Like a recent GitHub CI run on linux-musl [1] shows, we seem to be getting a bunch of errors of the form:

  Error: http.c:1002:9: 'CURLOPT_REDIR_PROTOCOLS' is deprecated:
  since 7.85.0. Use CURLOPT_REDIR_PROTOCOLS_STR
  [-Werror=deprecated-declarations]

For some of them, it may be reasonable to follow the deprecation notice and update the code, but some symbols like the above is not.

According to the release table [2], 7.85.0 that deprecates CURLOPT_REDIR_PROTOCOLS was released on 2022-08-31, less than a year ago, and according to the symbols-in-versions table [3], CURLOPT_REDIR_PROTOCOLS_STR was introduced in 7.85.0, so it will make us incompatible with anything older than a year if we rewrote the call as the message suggests.

Make sure that we won't break the build when -Wdeprecated-declarations triggers.

[1] https://github.com/git/git/actions/runs/3915509922/jobs/6693756050 [2] https://curl.se/docs/releases.html [3] https://github.com/curl/curl/blob/master/docs/libcurl/symbols-in-versions

Signed-off-by: Junio C Hamano <gitster@pobox.com>
---
 config.mak.dev | 9 +++++++++
 1 file changed, 9 insertions(+)
diff --git a/config.mak.dev b/config.mak.dev
index 981304727c..afcffa6a04 100644
--- a/config.mak.dev
+++ b/config.mak.dev
@@ -69,6 +69,15 @@ DEVELOPER_CFLAGS += -Wno-missing-braces
 endif
 endif
 
+# Libraries deprecate symbols while retaining them for a long time to
+# keep software working with both older and newer versions of them.
+# Getting warnings does help the developers' awareness, but we cannot
+# afford to update too aggressively.  E.g. CURLOPT_REDIR_PROTOCOLS_STR
+# is only available in 7.85.0 that deprecates CURLOPT_REDIR_PROTOCOLS
+# but we cannot rewrite the uses of the latter with the former until
+# 7.85.0, which was released in August 2022, becomes ubiquitous.
+DEVELOPER_CFLAGS += -Wno-error=deprecated-declarations
+
 # Old versions of clang complain about initializaing a
 # struct-within-a-struct using just "{0}" rather than "{{0}}".  This
 # error is considered a false-positive and not worth fixing, because
-- 
2.39.0-198-ga38d39a4c5
Next: Ramsay Jones
Message 1 of 42 in “ci: do not die on deprecated-declarations warning”
  1. ci: do not die on deprecated-declarations warningJunio C Hamano, Jan 14, 2023
  2. Ramsay JonesJan 14, 2023
  3. Ramsay JonesJan 14, 2023
  4. Junio C HamanoJan 14, 2023
  5. Jeff KingJan 14, 2023
  6. Jeff KingJan 14, 2023
  7. Junio C HamanoJan 14, 2023
  8. Jeff KingJan 14, 2023
  9. Junio C HamanoJan 15, 2023
  10. Jeff KingJan 15, 2023
  11. Junio C HamanoJan 15, 2023
  12. Junio C HamanoJan 14, 2023
  13. Junio C HamanoJan 15, 2023
  14. Jeff KingJan 15, 2023
  15. 1/3 http-push: prefer CURLOPT_UPLOAD to CURLOPT_PUTJeff King, Jan 15, 2023
  16. Ramsay JonesJan 15, 2023
  17. Jeff KingJan 15, 2023
  18. Jeff KingJan 15, 2023
  19. 2/3 http: prefer CURLOPT_SEEKFUNCTION to CURLOPT_IOCTLFUNCTIONJeff King, Jan 15, 2023
  20. Ramsay JonesJan 15, 2023
  21. Junio C HamanoJan 15, 2023
  22. Jeff KingJan 15, 2023
  23. 3/3 http: support CURLOPT_PROTOCOLS_STRJeff King, Jan 15, 2023
  24. Ramsay JonesJan 15, 2023
  25. Jeff KingJan 15, 2023
  26. Ævar Arnfjörð BjarmasonJan 16, 2023
  27. Junio C HamanoJan 16, 2023
  28. Junio C HamanoJan 16, 2023
  29. Jeff KingJan 16, 2023
  30. Jeff KingJan 16, 2023
  31. avoiding deprecated curl optionsJeff King, Jan 17, 2023
  32. 1/3 http-push: prefer CURLOPT_UPLOAD to CURLOPT_PUTJeff King, Jan 17, 2023
  33. 2/3 http: prefer CURLOPT_SEEKFUNCTION to CURLOPT_IOCTLFUNCTIONJeff King, Jan 17, 2023
  34. 3/3 http: support CURLOPT_PROTOCOLS_STRJeff King, Jan 17, 2023
  35. Ramsay JonesJan 18, 2023
  36. Jeff KingJan 14, 2023
  37. Ramsay JonesJan 16, 2023
  38. Jeff KingJan 16, 2023
  39. ci: do not die on deprecated-declarations warningJunio C Hamano, Jan 14, 2023
  40. Jeff KingJan 14, 2023
  41. 1/3 http-push: prefer CURLOPT_UPLOAD to CURLOPT_PUTJeff King, Jan 17, 2023
  42. Jeff KingJan 17, 2023

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