Fix lowerbound on Dune for ppxlib.0.5.0
ppxlib appears to be affected by a variation on ocaml/dune#1549,fixed by ocaml/dune#1551 Dune 1.6.0.
David Allsopp 2 years ago d1d9a97d 58129131
··· 16 16 depends: [ 17 17 "ocaml" {>= "4.04.1" & < "4.08.0"} 18 18 "base" {>= "v0.11.0"} 19 19 - "dune" 19 19 + "dune" {>= "1.6.0"} 20 20 "ocaml-compiler-libs" {>= "v0.11.0"} 21 21 "ocaml-migrate-parsetree" {>= "1.0.9" & < "2.0.0"} 22 22 "ppx_derivers" {>= "1.0"}