Test that raw-dylib works with whitespace paths

(cherry picked from commit 6d20c98)

Author: ChrisDenton

tests/run-make/raw-dylib-whitespace/main.rs

@@ -0,0 +1,18 @@
+type BOOL = i32;
+
+#[cfg_attr(
+    target_arch = "x86",
+    link(name = "bcryptprimitives", kind = "raw-dylib", import_name_type = "undecorated")
+)]
+#[cfg_attr(not(target_arch = "x86"), link(name = "bcryptprimitives", kind = "raw-dylib"))]
+extern "system" {
+    fn ProcessPrng(pbdata: *mut u8, cbdata: usize) -> BOOL;
+}
+
+fn main() {
+    let mut num: u8 = 0;
+    unsafe {
+        ProcessPrng(&mut num, 1);
+    }
+    println!("{num}");
+}

tests/run-make/raw-dylib-whitespace/rmake.rs

@@ -0,0 +1,15 @@
+// Ensure that raw-dylib still works if the output directory contains spaces.
+
+//@ only-windows-gnu
+//@ ignore-cross-compile
+//@ needs-dlltool
+// Reason: this test specifically checks the dlltool feature,
+// which is only used on windows-gnu.
+
+use run_make_support::{rfs, rustc};
+
+fn main() {
+    let out_dir = std::path::absolute("path with spaces").unwrap();
+    rfs::create_dir_all(&out_dir);
+    rustc().crate_type("bin").input("main.rs").out_dir(&out_dir).env("TMP", &out_dir).run();
+}