diff --git a/tdlib-rs/build.rs b/tdlib-rs/build.rs
index b358785..1e7d0d7 100644
--- a/tdlib-rs/build.rs
+++ b/tdlib-rs/build.rs
@@ -206,41 +206,43 @@ fn download_tdlib() {
 }
 
 fn main() -> std::io::Result<()> {
-    #[cfg(all(feature = "docs", feature = "pkg-config"))]
-    compile_error!(
-        "feature \"docs\" and feature \"pkg-config\" cannot be enabled at the same time"
-    );
-    #[cfg(all(feature = "docs", feature = "download-tdlib"))]
-    compile_error!(
-        "feature \"docs\" and feature \"download-tdlib\" cannot be enabled at the same time"
-    );
-    #[cfg(all(feature = "pkg-config", feature = "download-tdlib"))]
-    compile_error!(
-        "feature \"pkg-config\" and feature \"download-tdlib\" cannot be enabled at the same time"
-    );
+    if cfg!(debug_assertions) {
+        #[cfg(all(feature = "docs", feature = "pkg-config"))]
+        compile_error!(
+            "feature \"docs\" and feature \"pkg-config\" cannot be enabled at the same time"
+        );
+        #[cfg(all(feature = "docs", feature = "download-tdlib"))]
+        compile_error!(
+            "feature \"docs\" and feature \"download-tdlib\" cannot be enabled at the same time"
+        );
+        #[cfg(all(feature = "pkg-config", feature = "download-tdlib"))]
+        compile_error!(
+            "feature \"pkg-config\" and feature \"download-tdlib\" cannot be enabled at the same time"
+        );
 
-    #[cfg(not(any(feature = "docs", feature = "pkg-config", feature = "download-tdlib")))]
-    println!("cargo:rerun-if-env-changed=LOCAL_TDLIB_PATH");
+        #[cfg(not(any(feature = "docs", feature = "pkg-config", feature = "download-tdlib")))]
+        println!("cargo:rerun-if-env-changed=LOCAL_TDLIB_PATH");
 
-    println!("cargo:rerun-if-changed=build.rs");
+        println!("cargo:rerun-if-changed=build.rs");
 
-    // Prevent linking libraries to avoid documentation failure
-    #[cfg(not(feature = "docs"))]
-    {
-        // It requires the following variables to be set:
-        // - export PKG_CONFIG_PATH=$HOME/lib/tdlib/lib/pkgconfig/:$PKG_CONFIG_PATH
-        // - export LD_LIBRARY_PATH=$HOME/lib/tdlib/lib/:$LD_LIBRARY_PATH
-        #[cfg(feature = "pkg-config")]
-        system_deps::Config::new().probe().unwrap();
+        // Prevent linking libraries to avoid documentation failure
+        #[cfg(not(feature = "docs"))]
+        {
+            // It requires the following variables to be set:
+            // - export PKG_CONFIG_PATH=$HOME/lib/tdlib/lib/pkgconfig/:$PKG_CONFIG_PATH
+            // - export LD_LIBRARY_PATH=$HOME/lib/tdlib/lib/:$LD_LIBRARY_PATH
+            #[cfg(feature = "pkg-config")]
+            system_deps::Config::new().probe().unwrap();
 
-        #[cfg(feature = "download-tdlib")]
-        download_tdlib();
+            #[cfg(feature = "download-tdlib")]
+            download_tdlib();
 
-        #[cfg(not(feature = "pkg-config"))]
-        {
-            #[cfg(not(feature = "download-tdlib"))]
-            copy_local_tdlib();
-            generic_build();
+            #[cfg(not(feature = "pkg-config"))]
+            {
+                #[cfg(not(feature = "download-tdlib"))]
+                copy_local_tdlib();
+                generic_build();
+            }
         }
     }
 
diff --git a/tdlib-rs/src/build.rs b/tdlib-rs/src/build.rs
new file mode 100644
index 0000000..81948a7
--- /dev/null
+++ b/tdlib-rs/src/build.rs
@@ -0,0 +1,14 @@
+pub fn check_features() {
+    #[cfg(all(feature = "docs", feature = "pkg-config"))]
+    compile_error!(
+        "feature \"docs\" and feature \"pkg-config\" cannot be enabled at the same time"
+    );
+    #[cfg(all(feature = "docs", feature = "download-tdlib"))]
+    compile_error!(
+        "feature \"docs\" and feature \"download-tdlib\" cannot be enabled at the same time"
+    );
+    #[cfg(all(feature = "pkg-config", feature = "download-tdlib"))]
+    compile_error!(
+        "feature \"pkg-config\" and feature \"download-tdlib\" cannot be enabled at the same time"
+    );
+}
diff --git a/tdlib-rs/src/lib.rs b/tdlib-rs/src/lib.rs
index 3b2be81..67dacca 100644
--- a/tdlib-rs/src/lib.rs
+++ b/tdlib-rs/src/lib.rs
@@ -10,6 +10,7 @@
 mod generated;
 mod observer;
 mod tdjson;
+pub mod build;
 
 pub use generated::{enums, functions, types};