There's a merged pull request on the void-packages repository

curl: disable ssh option to break build cycle
https://github.com/void-linux/void-packages/pull/44336

Description:
Now that libssh2 builds with cmake, enabling SSH support in curl introduces a build cycle:

    binutils -> elfutils -> curl -> libssh2 -> cmake -> curl

Because SSH support in curl seems superfluous anyway, just disable it.

The other alternative is to go back to autotools for libssh2. I don't know if that's a long-term solution, but it seems possible for now.