It's saying that your callback routine must be declared/typedefed as a "curl_write_callback".
Timothe Litt ACM Distinguished Engineer -------------------------- This communication may not represent the ACM or my employer's views, if any, on the matters discussed. On 21-Jan-22 05:11, Gavin Henry via curl-library wrote:
-O2 -flto=auto -ffat-lto-objects -fexceptions -g -grecord-gcc-switches -pipe -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2 -Wp,-D_GLIBCXX_ASSERTIONS -specs=/usr/lib/rpm/redhat/redhat-hardened-cc1 -fstack-protector-strong -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1 -m64 -mtune=generic -fasynchronous-unwind-tables -fstack-clash-protection -fcf-protection -Wl,-z,relro -Wl,--as-needed -Wl,-z,now -specs=/usr/lib/rpm/redhat/redhat-hardened-ld -specs=/usr/lib/rpm/redhat/redhat-annobin-cc1So RH is adding about, but it's actually only this that is triggering the error: -flto=auto Going to read up on what that does which causes: error: call to ‘_curl_easy_setopt_err_write_callback’ declared with attribute warning: curl_easy_setopt expects a curl_write_callback argument for this option [-Werror=attribute-warning] 60 | curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, | ^ lto1: all warnings being treated as errors Thanks.
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