fix(glfw): check major version of GLFW shared library

1 files changed, 14 insertions, 0 deletions

diff --git a/glfw/src/init.rs b/glfw/src/init.rs
index b42bb52..df5a989 100644
--- a/glfw/src/init.rs
+++ b/glfw/src/init.rs
@@ -1,6 +1,12 @@
+use std::ffi::c_int;
+use std::ptr::null_mut;
+
 use crate::util::is_main_thread;
 use crate::{get_glfw_error, Error};
 
+/// GLFW 3.x.x is supported
+static SUPPORTED_GLFW_VERSION_MAJOR: c_int = 3;
+
 /// Initializes GLFW and returns a initialization token.
 ///
 /// # Errors
@@ -13,6 +19,14 @@ pub fn initialize() -> Result<Glfw, Error>
         return Err(Error::NotInMainThread);
     }
 
+    let mut major: c_int = 0;
+
+    unsafe { crate::ffi::glfwGetVersion(&mut major, null_mut(), null_mut()) };
+
+    if major != SUPPORTED_GLFW_VERSION_MAJOR {
+        return Err(Error::UnsupportedVersion);
+    }
+
     // SAFETY: The current thread is the main thread
     let success = unsafe { crate::ffi::glfwInit() };