unikernel/duniverse/dune_/test/blackbox-tests/test-cases/expand-make.t

@@ -0,0 +1,41 @@
+On Unix, dune should lookup gmake and followed by make.
+
+Regression test for https://github.com/ocaml/dune/issues/5470 
+
+This needs special setup to have a PATH which does not contain a gmake binary,
+in case the system PATH has one. Instead of prepending to PATH we create a bin/
+subdirectory with links to all the executables dune needs.
+
+  $ mkdir make gmake bin
+
+  $ for prog in dune ocamlc sh; do
+  >   ln -s $(which $prog) bin/;
+  > done
+
+  $ cat >make/make <<EOF
+  > #!/usr/bin/env sh
+  > echo make
+  > EOF
+
+  $ cat >gmake/gmake <<EOF
+  > #!/usr/bin/env sh
+  > echo gmake
+  > EOF
+
+  $ chmod +x make/make gmake/gmake
+
+  $ cat >dune-project <<EOF
+  > (lang dune 3.0)
+  > EOF
+
+  $ cat >dune <<EOF
+  > (data_only_dirs bin)
+  > (rule
+  >  (alias make)
+  >  (action (run %{make})))
+  > EOF
+
+  $ PATH="$PWD/make:$PWD/bin" dune build @make --force;
+  make
+  $ PATH="$PWD/gmake:$PWD/make:$PWD/bin" dune build @make --force
+  gmake