diff --git a/openssl-sys/Cargo.toml b/openssl-sys/Cargo.toml
index 6753681cebc3ba92ed0ea44aa8feaf74617ccd1b..c434be499082a67880f7b1cca71e86ed0ef44a53 100644
--- a/openssl-sys/Cargo.toml
+++ b/openssl-sys/Cargo.toml
@@ -18,3 +18,12 @@ aes_xts = []
 
 [build-dependencies]
 pkg-config = "0.1"
+
+[target.le32-unknown-nacl.dependencies]
+libressl-pnacl-sys = "2.1.0"
+[target.x86_64-unknown-nacl.dependencies]
+libressl-pnacl-sys = "2.1.0"
+[target.i686-unknown-nacl.dependencies]
+libressl-pnacl-sys = "2.1.0"
+[target.arm-unknown-nacl.dependencies]
+libressl-pnacl-sys = "2.1.0"
diff --git a/openssl-sys/src/build.rs b/openssl-sys/src/build.rs
index f32ced0eda8ee1fdb980b4abb6266cd671fd6d42..0ee0dd2c12f937a5f29197eaa713243a80e2c116 100644
--- a/openssl-sys/src/build.rs
+++ b/openssl-sys/src/build.rs
@@ -3,6 +3,11 @@ extern crate "pkg-config" as pkg_config;
 use std::os;
 
 fn main() {
+    // Without hackory, pkg-config will only look for host libraries.
+    // So, abandon ship if we're cross compiling.
+    if os::getenv("HOST") != os::getenv("TARGET") { return; }
+
+
     if pkg_config::find_library("openssl").is_err() {
         let mut flags = " -l crypto -l ssl".to_string();
 
diff --git a/openssl-sys/src/lib.rs b/openssl-sys/src/lib.rs
index 2b0c929211ce5ccc4a7ddab7bbd8fc270ab6e3a8..0644a674d955b40ace038f52c790088ad2e5e5b3 100644
--- a/openssl-sys/src/lib.rs
+++ b/openssl-sys/src/lib.rs
@@ -4,6 +4,9 @@
 extern crate libc;
 extern crate rustrt;
 
+#[cfg(feature = "libressl-pnacl-sys")]
+extern crate "libressl-pnacl-sys" as _for_linkage;
+
 use libc::{c_void, c_int, c_char, c_ulong, c_long, c_uint, c_uchar, size_t};
 use std::mem;
 use std::ptr;