Fix MinGW side-conditions in conf-libssl

Author: jmid

packages/conf-libssl/conf-libssl.4/opam

@@ -8,10 +8,10 @@ build-env: [
   [HOMEBREW_NO_AUTO_UPDATE = "1"]
 ]
 build: [
-  ["pkgconf" {os = "win32" & os-distribution = "cygwin"}
-   "--personality=i686-w64-mingw32" {os = "win32" & os-distribution = "cygwin" & host-arch-x86_32:installed}
-   "--personality=x86_64-w64-mingw32" {os = "win32" & os-distribution = "cygwin" & host-arch-x86_64:installed}
-   "pkg-config" {os != "win32" | os-distribution != "cygwin"}
+  ["pkgconf" {os = "win32" & os-distribution != "cygwinports"}
+   "--personality=i686-w64-mingw32" {os = "win32" & os-distribution != "cygwinports" & host-arch-x86_32:installed}
+   "--personality=x86_64-w64-mingw32" {os = "win32" & os-distribution != "cygwinports" & host-arch-x86_64:installed}
+   "pkg-config" {os != "win32" | os-distribution = "cygwinports"}
    "--print-errors" "--exists" "openssl"]
     {os != "freebsd" & os != "openbsd" & os != "netbsd" & # libssl is provided by base system on BSDs
      os-distribution != "homebrew"}