5.8 configure finding libs in wrong directory
5.9 Utilize Requires.private directives in libcurl.pc
5.10 IDN tests failing on Windows / MSYS2
+ 5.11 configure --with-gssapi with Heimdal is ignored on macOS
6. Authentication
6.1 NTLM authentication and unicode
https://github.com/curl/curl/issues/3747
+5.11 configure --with-gssapi with Heimdal is ignored on macOS
+
+ ... unless you also pass --with-gssapi-libs
+
+ https://github.com/curl/curl/issues/3841
+
6. Authentication
6.1 NTLM authentication and unicode