diff --git a/core/build.rs b/core/build.rs
index 7c8cfebb3b..9e55e08c36 100644
--- a/core/build.rs
+++ b/core/build.rs
@@ -13,19 +13,19 @@ fn main() {
     };
     let perf_libs_dir = perf_libs_dir.to_str().unwrap();
 
-    // Ensure `perf_libs_dir` exists.  It's been observed that
-    // a cargo:rerun-if-changed= directive with a non-existent
-    // directory triggers a rebuild on every |cargo build| invocation
-    fs::create_dir_all(&perf_libs_dir).unwrap_or_else(|err| {
-        if err.kind() != std::io::ErrorKind::AlreadyExists {
-            panic!("Unable to create {}: {:?}", perf_libs_dir, err);
-        }
-    });
-
     let chacha = !env::var("CARGO_FEATURE_CHACHA").is_err();
     let cuda = !env::var("CARGO_FEATURE_CUDA").is_err();
 
     if chacha || cuda {
+        // Ensure `perf_libs_dir` exists.  It's been observed that
+        // a cargo:rerun-if-changed= directive with a non-existent
+        // directory triggers a rebuild on every |cargo build| invocation
+        fs::create_dir_all(&perf_libs_dir).unwrap_or_else(|err| {
+            if err.kind() != std::io::ErrorKind::AlreadyExists {
+                panic!("Unable to create {}: {:?}", perf_libs_dir, err);
+            }
+        });
+
         println!("cargo:rerun-if-changed={}", perf_libs_dir);
         println!("cargo:rustc-link-search=native={}", perf_libs_dir);
     }
diff --git a/install/src/command.rs b/install/src/command.rs
index 13dd8c79df..4ee1b5c0ae 100644
--- a/install/src/command.rs
+++ b/install/src/command.rs
@@ -513,6 +513,15 @@ pub fn deploy(
     Ok(())
 }
 
+#[cfg(windows)]
+fn symlink_dir<P: AsRef<Path>, Q: AsRef<Path>>(src: P, dst: Q) -> std::io::Result<()> {
+    std::os::windows::fs::symlink_dir(src, dst)
+}
+#[cfg(not(windows))]
+fn symlink_dir<P: AsRef<Path>, Q: AsRef<Path>>(src: P, dst: Q) -> std::io::Result<()> {
+    std::os::unix::fs::symlink(src, dst)
+}
+
 pub fn update(config_file: &str) -> Result<bool, String> {
     let update_manifest = info(config_file, false)?;
     if update_manifest.is_none() {
@@ -565,7 +574,7 @@ pub fn update(config_file: &str) -> Result<bool, String> {
     }
 
     let _ = fs::remove_dir_all(config.active_release_dir());
-    std::os::unix::fs::symlink(
+    symlink_dir(
         release_dir.join("solana-release"),
         config.active_release_dir(),
     )
diff --git a/netutil/src/lib.rs b/netutil/src/lib.rs
index 797f66f75d..84d0f20128 100644
--- a/netutil/src/lib.rs
+++ b/netutil/src/lib.rs
@@ -1,12 +1,9 @@
 //! The `netutil` module assists with networking
-use nix::sys::socket::setsockopt;
-use nix::sys::socket::sockopt::{ReuseAddr, ReusePort};
 use rand::{thread_rng, Rng};
 use socket2::{Domain, SockAddr, Socket, Type};
 use std::io;
 use std::io::Read;
 use std::net::{IpAddr, Ipv4Addr, SocketAddr, TcpListener, TcpStream, ToSocketAddrs, UdpSocket};
-use std::os::unix::io::AsRawFd;
 use std::time::Duration;
 
 mod ip_echo_server;
@@ -106,7 +103,18 @@ pub fn parse_host_port(host_port: &str) -> Result<SocketAddr, String> {
     }
 }
 
+#[cfg(windows)]
+fn udp_socket(_reuseaddr: bool) -> io::Result<Socket> {
+    let sock = Socket::new(Domain::ipv4(), Type::dgram(), None)?;
+    Ok(sock)
+}
+
+#[cfg(not(windows))]
 fn udp_socket(reuseaddr: bool) -> io::Result<Socket> {
+    use nix::sys::socket::setsockopt;
+    use nix::sys::socket::sockopt::{ReuseAddr, ReusePort};
+    use std::os::unix::io::AsRawFd;
+
     let sock = Socket::new(Domain::ipv4(), Type::dgram(), None)?;
     let sock_fd = sock.as_raw_fd();