Merge pull request ocaml#28110 from mseri/fix-conf-plplot

Add macports to conf-plplot

Author: mseri

packages/conf-plplot/conf-plplot.1/opam

@@ -11,7 +11,7 @@ depends: [
 depexts: [
   ["libplplot-dev" "libshp-dev"] {os-family = "debian"}
   ["libplplot-dev" "libshp-dev"] {os-family = "ubuntu"}
-  ["plplot"] {os = "macos" & os-distribution = "homebrew"}
+  ["plplot"] {os = "macos" & (os-distribution = "homebrew" | os-distribution = "macports")}
   ["plplot-devel"] {os-family = "rhel"}
   ["plplot-devel"] {os-family = "fedora"}
   ["plplot-devel"] {os-family = "suse" | os-family = "opensuse"}