Rewrite and rename issue-26006 to rmake

src/tools/tidy/src/allowed_run_make_makefiles.txt

@@ -50,7 +50,6 @@ run-make/issue-14698/Makefile
 run-make/issue-15460/Makefile
 run-make/issue-18943/Makefile
 run-make/issue-25581/Makefile
-run-make/issue-26006/Makefile
 run-make/issue-28595/Makefile
 run-make/issue-33329/Makefile
 run-make/issue-35164/Makefile

tests/run-make/invalid-symlink-search-path/rmake.rs

@@ -0,0 +1,24 @@
+// In this test, the symlink created is invalid (valid relative to the root, but not
+// relatively to where it is located), and used to cause an internal
+// compiler error (ICE) when passed as a library search path. This was fixed in #26044,
+// and this test checks that the invalid symlink is instead simply ignored.
+// See https://github.com/rust-lang/rust/issues/26006
+
+//FIXME(Oneirical): try it on test-various and windows
+
+use run_make_support::{create_symlink, fs_wrapper, rustc};
+
+fn main() {
+    fs_wrapper::create_dir("out");
+    fs_wrapper::create_dir("out/libc");
+    rustc()
+        .input("in/libc/lib.rs")
+        .crate_name("libc")
+        .metadata("foo")
+        .output("out/libc/liblibc.rlib")
+        .run();
+    fs_wrapper::create_dir("out/time");
+    fs_wrapper::create_dir("out/time/deps");
+    create_symlink("out/libc/liblibc.rlib", "out/time/deps");
+    rustc().input("in/time/lib.rs").library_search_path("dependency=out/time/deps").run();
+}