Set link args for rustdoc

src/rustc/rustc.rs

@@ -17,6 +17,7 @@
 // We only build for msvc and gnu now, but we use a exhaustive condition here
 // so we can expect either the stack size to be set or the build fails.
 #[cfg_attr(all(windows, not(target_env = "msvc")), link_args = "-Wl,--stack,16777216")]
+// Also, don't forget to set this for rustdoc.
 extern {}
 
 extern crate rustc_driver;

src/tools/rustdoc/main.rs

@@ -8,6 +8,16 @@
 // option. This file may not be copied, modified, or distributed
 // except according to those terms.
 
+#![feature(link_args)]
+// Set the stack size at link time on Windows. See rustc_driver::in_rustc_thread
+// for the rationale.
+#[cfg_attr(all(windows, target_env = "msvc"), link_args = "/STACK:16777216")]
+// We only build for msvc and gnu now, but we use a exhaustive condition here
+// so we can expect either the stack size to be set or the build fails.
+#[cfg_attr(all(windows, not(target_env = "msvc")), link_args = "-Wl,--stack,16777216")]
+// See src/rustc/rustc.rs for the corresponding rustc settings.
+extern {}
+
 extern crate rustdoc;
 
 fn main() { rustdoc::main() }