rewrite static-dylib-by-default to rmake

Author: Oneirical

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -77,7 +77,6 @@ run-make/share-generics-dylib/Makefile
 run-make/simd-ffi/Makefile
 run-make/split-debuginfo/Makefile
 run-make/stable-symbol-names/Makefile
-run-make/static-dylib-by-default/Makefile
 run-make/staticlib-dylib-linkage/Makefile
 run-make/symbol-mangling-hashed/Makefile
 run-make/symbol-visibility/Makefile

tests/run-make/static-dylib-by-default/Makefile

@@ -0,0 +1,25 @@
+// If a dylib is being produced, the compiler will first check to see if it can
+// be created entirely statically before falling back to dynamic dependencies. This
+// behavior can be overridden with `-C prefer-dynamic`.
+// In this test, bar depends on foo and is compiled fully statically despite the available
+// `foo` dynamic library. This allows the main binary to be executed in the final step.
+// See https://github.com/rust-lang/rust/commit/3036b001276a6e43409b08b7f2334ce72aeeb036
+
+//@ ignore-cross-compile
+// Reason: the compiled binary is executed
+//FIXME(Oneirical): try on msvc, not because of an ignore but because i did wonky things
+
+use run_make_support::{
+    cc, cwd, dynamic_lib_name, extra_c_flags, has_extension, rfs, run, rustc, shallow_find_files,
+};
+
+fn main() {
+    rustc().input("foo.rs").run();
+    rustc().input("bar.rs").run();
+    cc().input("main.c").out_exe("main").arg(dynamic_lib_name("bar")).args(extra_c_flags()).run();
+    for rlib in shallow_find_files(cwd(), |path| has_extension(path, "rlib")) {
+        rfs::remove_file(rlib);
+    }
+    rfs::remove_file(dynamic_lib_name("foo"));
+    run("main");
+}