diff --git a/cmake/flags.cmake b/cmake/flags.cmake
index 10386b174..f55ddcdc2 100644
--- a/cmake/flags.cmake
+++ b/cmake/flags.cmake
@@ -10,7 +10,7 @@ if ("${CMAKE_BUILD_TYPE}" STREQUAL "")
 endif()
 
 if (CMAKE_BUILD_TYPE STREQUAL "Release")
-    add_definitions(/DNDEBUG)
+    add_definitions(-DNDEBUG)
 endif()
 
 include(CheckSymbolExists)
@@ -32,7 +32,7 @@ if (CMAKE_CXX_COMPILER_ID MATCHES GNU)
         set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -maes")
         set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -maes")
 
-        add_definitions(/DHAVE_ROTR)
+        add_definitions(-DHAVE_ROTR)
     endif()
 
     if (WIN32)
@@ -49,16 +49,7 @@ if (CMAKE_CXX_COMPILER_ID MATCHES GNU)
         set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static")
     endif()
 
-    add_definitions(/D_GNU_SOURCE)
-
-    if (${CMAKE_VERSION} VERSION_LESS "3.1.0")
-        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99")
-        set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
-    endif()
-
-    #set(CMAKE_C_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} -gdwarf-2")
-
-    add_definitions(/DHAVE_BUILTIN_CLEAR_CACHE)
+    add_definitions(-D_GNU_SOURCE -DHAVE_BUILTIN_CLEAR_CACHE)
 
 elseif (CMAKE_CXX_COMPILER_ID MATCHES MSVC)
     set(CMAKE_C_FLAGS_RELEASE "/MP /MT /O2 /Oi /DNDEBUG /GL")
@@ -67,10 +58,7 @@ elseif (CMAKE_CXX_COMPILER_ID MATCHES MSVC)
     set(CMAKE_C_FLAGS_RELWITHDEBINFO "/MP /Ob1 /Zi /DRELWITHDEBINFO")
     set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "/MP /Ob1 /Zi /DRELWITHDEBINFO")
 
-    add_definitions(/D_CRT_SECURE_NO_WARNINGS)
-    add_definitions(/D_CRT_NONSTDC_NO_WARNINGS)
-    add_definitions(/DNOMINMAX)
-    add_definitions(/DHAVE_ROTR)
+    add_definitions(-D_CRT_SECURE_NO_WARNINGS -D_CRT_NONSTDC_NO_WARNINGS -DNOMINMAX -DHAVE_ROTR)
 
 elseif (CMAKE_CXX_COMPILER_ID MATCHES Clang)
 
@@ -92,7 +80,7 @@ elseif (CMAKE_CXX_COMPILER_ID MATCHES Clang)
 
         check_symbol_exists("_rotr" "x86intrin.h" HAVE_ROTR)
         if (HAVE_ROTR)
-            add_definitions(/DHAVE_ROTR)
+            add_definitions(-DHAVE_ROTR)
         endif()
     endif()
 
@@ -105,6 +93,6 @@ endif()
 if (NOT WIN32)
     check_symbol_exists("__builtin___clear_cache" "stdlib.h" HAVE_BUILTIN_CLEAR_CACHE)
     if (HAVE_BUILTIN_CLEAR_CACHE)
-        add_definitions(/DHAVE_BUILTIN_CLEAR_CACHE)
+        add_definitions(-DHAVE_BUILTIN_CLEAR_CACHE)
     endif()
 endif()
diff --git a/src/base/net/dns/DnsRecord.cpp b/src/base/net/dns/DnsRecord.cpp
index bfa84613a..3bf8f0975 100644
--- a/src/base/net/dns/DnsRecord.cpp
+++ b/src/base/net/dns/DnsRecord.cpp
@@ -1,6 +1,6 @@
 /* XMRig
- * Copyright (c) 2018-2021 SChernykh   <https://github.com/SChernykh>
- * Copyright (c) 2016-2021 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ * Copyright (c) 2018-2023 SChernykh   <https://github.com/SChernykh>
+ * Copyright (c) 2016-2023 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -46,11 +46,11 @@ xmrig::String xmrig::DnsRecord::ip() const
 
     if (m_type == AAAA) {
         buf = new char[45]();
-        uv_ip6_name(reinterpret_cast<sockaddr_in6*>(m_data), buf, 45);
+        uv_ip6_name(reinterpret_cast<const sockaddr_in6*>(m_data), buf, 45);
     }
     else {
         buf = new char[16]();
-        uv_ip4_name(reinterpret_cast<sockaddr_in*>(m_data), buf, 16);
+        uv_ip4_name(reinterpret_cast<const sockaddr_in*>(m_data), buf, 16);
     }
 
     return buf;
diff --git a/src/base/net/tls/TlsContext.h b/src/base/net/tls/TlsContext.h
index 9a9b3cb1c..0bb7eec3f 100644
--- a/src/base/net/tls/TlsContext.h
+++ b/src/base/net/tls/TlsContext.h
@@ -1,7 +1,7 @@
 /* XMRig
  * Copyright (c) 2018      Lee Clagett <https://github.com/vtnerd>
- * Copyright (c) 2018-2021 SChernykh   <https://github.com/SChernykh>
- * Copyright (c) 2016-2021 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ * Copyright (c) 2018-2023 SChernykh   <https://github.com/SChernykh>
+ * Copyright (c) 2016-2023 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -24,9 +24,6 @@
 #include "base/tools/Object.h"
 
 
-#include <cstdint>
-
-
 using SSL_CTX = struct ssl_ctx_st;
 
 
@@ -60,6 +57,7 @@ private:
 };
 
 
-} /* namespace xmrig */
+} // namespace xmrig
 
-#endif /* XMRIG_TLSCONTEXT_H */
+
+#endif // XMRIG_TLSCONTEXT_H
diff --git a/src/base/tools/Object.h b/src/base/tools/Object.h
index 00bd9315a..f67464ab6 100644
--- a/src/base/tools/Object.h
+++ b/src/base/tools/Object.h
@@ -1,6 +1,6 @@
 /* XMRig
- * Copyright (c) 2018-2021 SChernykh   <https://github.com/SChernykh>
- * Copyright (c) 2016-2021 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ * Copyright (c) 2018-2023 SChernykh   <https://github.com/SChernykh>
+ * Copyright (c) 2016-2023 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -20,7 +20,9 @@
 #define XMRIG_OBJECT_H
 
 
-#include <chrono>
+#include <cstddef>
+#include <cstdint>
+#include <memory>
 
 
 namespace xmrig {
@@ -41,6 +43,7 @@ namespace xmrig {
     X &operator=(X &&other)      = delete;
 
 
-} /* namespace xmrig */
+} // namespace xmrig
 
-#endif /* XMRIG_OBJECT_H */
+
+#endif // XMRIG_OBJECT_H