Test for 'ncursesw' on MSys2 instead

Author: jmid

packages/conf-ncurses/conf-ncurses.1/opam

@@ -13,7 +13,8 @@ build: [
     {os = "win32" & os-distribution != "cygwinports" &
      host-arch-x86_64:installed}
   "pkg-config" {os-distribution != "cygwin" & os-distribution != "msys2" & os-distribution != "opensuse" & os != "macos" & os != "freebsd" & os != "netbsd" & os != "openbsd"}
-  "ncurses" {os-distribution != "opensuse" & os != "macos" & os != "freebsd" & os != "netbsd" & os != "openbsd"}
+  "ncurses" {os-distribution != "opensuse" & os != "macos" & os != "freebsd" & os != "netbsd" & os != "openbsd" & os-distribution != "msys2"}
+  "ncursesw" {os-distribution = "msys2"} # MSys2 packages compatible ncursesw https://packages.msys2.org/packages/mingw-w64-x86_64-ncurses
 ]
 depends: [
   "conf-pkg-config" {build & os-distribution != "opensuse" & os != "macos" & os != "freebsd" & os != "netbsd" & os != "openbsd"}