Hi,
when I try to build a plugin containing circl like so

go build -buildmode=plugin

I get:

asm: fp_amd64.s:68: when dynamic linking, R15 is clobbered by a global variable access and is used here: 00215 (....l/vendor/github.com/cloudflare/circl/math/fp25519/fp_amd64.s:68)  MULXQ   24(SI), AX, R15
asm: assembly failed

I am sorry, but I have no idea on debugging this. I found similar issues which let me assume that some upstream change could be required. If you find time to look into this, I would really appreciate your help.