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@xxxxxxxxx> --- 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
