Use std::mutex instead of mutex_type here

std::condition_variable only works with std::mutex anyway, and
this module is not enabled on systems without threads.

1 files changed, 2 insertions, 2 deletions

diff --git a/src/lib/utils/thread_utils/semaphore.h b/src/lib/utils/thread_utils/semaphore.h
index 9db34826a..538d9ecb5 100644
--- a/src/lib/utils/thread_utils/semaphore.h
+++ b/src/lib/utils/thread_utils/semaphore.h
@@ -8,8 +8,8 @@
 #ifndef BOTAN_SEMAPHORE_H_
 #define BOTAN_SEMAPHORE_H_
 
-#include <botan/mutex.h>
 #include <condition_variable>
+#include <mutex>
 
 namespace Botan {
 
@@ -25,7 +25,7 @@ class Semaphore final
    private:
       int m_value;
       int m_wakeups;
-      mutex_type m_mutex;
+      std::mutex m_mutex;
       std::condition_variable m_cond;
    };