53 lines
1.5 KiB
Perl
53 lines
1.5 KiB
Perl
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Exercise dune resolving the post dependencies found in compiler packages.
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$ . ./helpers.sh
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$ mkrepo
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$ cat >dune-workspace << EOF
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> (lang dune 3.16)
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> (lock_dir
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> (path dune.lock)
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> (repositories mock)
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> (solver_env
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> (os linux)))
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> EOF
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$ mkpkg host-system-other
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$ mkpkg system-mingw << EOF
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> available: os = "win32"
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> EOF
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$ mkpkg ocaml << EOF
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> depends: [
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> "ocaml-base-compiler"
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> ]
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> EOF
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This package has a dependency cycle with the "ocaml" package, broken
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by the use of post dependencies. It also contains a formula with no
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solutions when the "post" variable is set to "false" on non-windows
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systems. Opam evaluates dependency formulae with post=true and then
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does further filtering to remove post dependencies from dependency
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lists to prevent circular dependencies at package build time.
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$ mkpkg ocaml-base-compiler << EOF
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> depends: [
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> "ocaml" {post}
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> (("arch-x86_64" {os = "win32" & arch = "x86_64"} & "system-mingw" &
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> "mingw-w64-shims" {os-distribution = "cygwin" & build}) |
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> ("arch-x86_32" {os = "win32"} & "ocaml-option-bytecode-only" &
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> "system-mingw" &
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> "mingw-w64-shims" {os-distribution = "cygwin" & build}) |
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> "host-system-other" {os != "win32" & post})
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> ]
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> EOF
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$ solve ocaml-base-compiler
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Solution for dune.lock:
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- ocaml-base-compiler.0.0.1
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Ensure that packages can be resolved at build time. This checks that
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the dependency cycle between the "ocaml" and "ocaml-base-compiler"
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packages is successfully broken by the use of post dependencies.
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$ dune build
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