diff --git a/leechcore-sys/build.rs b/leechcore-sys/build.rs
index 8c8d32f..375063c 100644
--- a/leechcore-sys/build.rs
+++ b/leechcore-sys/build.rs
@@ -47,7 +47,8 @@ fn build_leechcore(target: &str) {
                 .map(|o| "src/leechcore/leechcore/".to_string() + o)
                 .collect::<Vec<_>>(),
         )
-        .flag(&format!("-D{}", os_define()));
+        .flag(&format!("-D{}", os_define()))
+        .flag("-D_GNU_SOURCE");
     // EXPORTED_FUNCTION= to not export any symbols
 
     if !target.contains("windows") {
@@ -105,7 +106,7 @@ fn main() {
 
     // generate bindings
     let mut builder = bindgen::builder()
-        .clang_arg(format!("-D{}", os_define()))
+        .clang_arg(format!("-D{} -D_GNU_SOURCE", os_define()))
         .header("./src/leechcore/leechcore/leechcore.h");
 
     // workaround for windows.h
diff --git a/leechcore-sys/src/leechcore b/leechcore-sys/src/leechcore
index e31a508..9968fa3 160000
--- a/leechcore-sys/src/leechcore
+++ b/leechcore-sys/src/leechcore
@@ -1 +1 @@
-Subproject commit e31a5084e264b4ab3c21238a95f703e994ec3384
+Subproject commit 9968fa3d88b3504c0ac68c582f111929afefd103
diff --git a/memflow-pcileech/src/lib.rs b/memflow-pcileech/src/lib.rs
index 161ff56..df7abb8 100644
--- a/memflow-pcileech/src/lib.rs
+++ b/memflow-pcileech/src/lib.rs
@@ -92,9 +92,8 @@ impl PciLeech {
         if handle.is_null() {
             // TODO: handle version error
             // TODO: handle special case of fUserInputRequest
-            error!("leechcore error: {:?}", err);
             return Err(Error(ErrorOrigin::Connector, ErrorKind::Configuration)
-                .log_error("unable to create leechcore context"));
+                .log_error(&format!("unable to create leechcore context: {:?}", err)));
         }
 
         Ok(Self {
@@ -361,10 +360,13 @@ pub fn create_connector(args: &Args, log_level: Level) -> Result<PciLeech> {
 
     match validator.validate(&args) {
         Ok(_) => {
-            let device = args.get("device").or_else(|| args.get_default()).ok_or(
-                Error(ErrorOrigin::Connector, ErrorKind::ArgValidation)
-                    .log_error("'device' argument is missing"),
-            )?;
+            let device = args
+                .get("device")
+                .or_else(|| args.get_default())
+                .ok_or_else(|| {
+                    Error(ErrorOrigin::Connector, ErrorKind::ArgValidation)
+                        .log_error("'device' argument is missing")
+                })?;
 
             if let Some(memmap) = args.get("memmap") {
                 PciLeech::with_memmap(device, memmap)