diff --git a/clib/linenoise.c b/clib/linenoise.c
index af16d4f..af4f771 100644
--- a/clib/linenoise.c
+++ b/clib/linenoise.c
@@ -108,6 +108,7 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <errno.h>
+#include <strings.h>
 #include <string.h>
 #include <stdlib.h>
 #include <ctype.h>
diff --git a/ml_profiler.cpp b/ml_profiler.cpp
index 78612b3..3941d7a 100644
--- a/ml_profiler.cpp
+++ b/ml_profiler.cpp
@@ -79,7 +79,7 @@ void MlPerfMon::restore_callstack_position(size_t to_position) {
 }
 
 void MlPerfMon::clear_callstack() {
-    call_stack.empty();
+    bool e = call_stack.empty();
 }
 
 void MlPerfMon::print_results() const {