Merge pull request #28545 from jmid/avoid-conf-gmp-powm-sec-1

Avoid conf-gmp-powm-sec.1 too

Author: mseri

packages/conf-gmp-powm-sec/conf-gmp-powm-sec.1/opam

@@ -18,7 +18,7 @@ description: """
 This package can only install if the GMP lib is installed on the system and
 corresponds to a version that has the mpz_powm_sec function."""
 authors: "Etienne Millon <[email protected]>"
-flags: conf
+flags: [conf avoid-version]
 extra-source "test.c" {
   src:
     "https://raw.githubusercontent.com/ocaml/opam-source-archives/main/patches/conf-gmp-powm-sec/test.c.1"