Move openssl-sys build.rs

1 files changed, 43 insertions, 0 deletions

diff --git a/openssl-sys/build.rs b/openssl-sys/build.rs
new file mode 100644
index 00000000..a5d3f2d1
--- /dev/null
+++ b/openssl-sys/build.rs
@@ -0,0 +1,43 @@
+#![feature(core, collections, os)]
+
+extern crate "pkg-config" as pkg_config;
+
+use std::os;
+
+fn main() {
+    let target = os::getenv("TARGET").unwrap();
+    let is_android = target.find_str("android").is_some();
+
+    // Without hackory, pkg-config will only look for host libraries.
+    // So, abandon ship if we're cross compiling.
+    if !is_android && !pkg_config::target_supported() {
+        panic!("unsupported target");
+    }
+
+    if pkg_config::find_library("openssl").is_err() {
+        let mut flags = if is_android {
+            " -l crypto:static -l ssl:static"
+        } else {
+            " -l crypto -l ssl"
+        }.to_string();
+
+        let win_pos = target.find_str("windows")
+                            .or(target.find_str("win32"))
+                            .or(target.find_str("win64"));
+
+        // It's fun, but it looks like win32 and win64 both
+        // have all the libs with 32 sufix
+        if win_pos.is_some() {
+           flags.push_str(" -l gdi32 -l wsock32");
+        }
+
+        if is_android {
+            let path = os::getenv("OPENSSL_PATH").expect("Android does not provide openssl libraries, please \
+                                                          build them yourselves (instructions in the README) \
+                                                          and provide their location through $OPENSSL_PATH.");
+            flags.push_str(format!(" -L {}", path).as_slice());
+        }
+
+        println!("cargo:rustc-flags={}", flags);
+    }
+}