diff --git a/include/spdlog/details/log_msg-inl.h b/include/spdlog/details/log_msg-inl.h
index 1e4eaaff..3b50fd42 100644
--- a/include/spdlog/details/log_msg-inl.h
+++ b/include/spdlog/details/log_msg-inl.h
@@ -12,8 +12,8 @@
 namespace spdlog {
 namespace details {
 
-SPDLOG_INLINE log_msg::log_msg(spdlog::source_loc loc, string_view_t logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
-    : logger_name(logger_name)
+SPDLOG_INLINE log_msg::log_msg(spdlog::source_loc loc, string_view_t a_logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
+    : logger_name(a_logger_name)
     , level(lvl)
     , time(os::now())
 #ifndef SPDLOG_NO_THREAD_ID
@@ -23,8 +23,8 @@ SPDLOG_INLINE log_msg::log_msg(spdlog::source_loc loc, string_view_t logger_name
     , payload(msg)
 {}
 
-SPDLOG_INLINE log_msg::log_msg(string_view_t logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
-    : log_msg(source_loc{}, logger_name, lvl, msg)
+SPDLOG_INLINE log_msg::log_msg(string_view_t a_logger_name, spdlog::level::level_enum lvl, spdlog::string_view_t msg)
+    : log_msg(source_loc{}, a_logger_name, lvl, msg)
 {}
 
 } // namespace details
diff --git a/include/spdlog/details/os-inl.h b/include/spdlog/details/os-inl.h
index 84b99969..1a63b0f8 100644
--- a/include/spdlog/details/os-inl.h
+++ b/include/spdlog/details/os-inl.h
@@ -462,7 +462,7 @@ SPDLOG_INLINE void wstr_to_utf8buf(wstring_view_t wstr, memory_buf_t &target)
 #endif // (defined(SPDLOG_WCHAR_TO_UTF8_SUPPORT) || defined(SPDLOG_WCHAR_FILENAMES)) && defined(_WIN32)
 
 // return true on success
-SPDLOG_INLINE bool mkdir_(const filename_t &path)
+static SPDLOG_INLINE bool mkdir_(const filename_t &path)
 {
 #ifdef _WIN32
 #ifdef SPDLOG_WCHAR_FILENAMES
diff --git a/include/spdlog/details/pattern_formatter-inl.h b/include/spdlog/details/pattern_formatter-inl.h
index 83d0283b..f4e406a5 100644
--- a/include/spdlog/details/pattern_formatter-inl.h
+++ b/include/spdlog/details/pattern_formatter-inl.h
@@ -77,7 +77,7 @@ private:
     {
         // count = std::min(count, spaces_.size());
         // assert(count <= spaces_.size());
-        fmt_helper::append_string_view(string_view_t(spaces_.data(), count), dest_);
+        fmt_helper::append_string_view(string_view_t(spaces_.data(), static_cast<size_t>(count)), dest_);
     }
 
     const padding_info &padinfo_;
diff --git a/include/spdlog/details/thread_pool-inl.h b/include/spdlog/details/thread_pool-inl.h
index 910eb2a0..29a6363f 100644
--- a/include/spdlog/details/thread_pool-inl.h
+++ b/include/spdlog/details/thread_pool-inl.h
@@ -81,7 +81,7 @@ void SPDLOG_INLINE thread_pool::post_async_msg_(async_msg &&new_msg, async_overf
 
 void SPDLOG_INLINE thread_pool::worker_loop_()
 {
-    while (process_next_msg_()) {};
+    while (process_next_msg_()) {}
 }
 
 // process next message in the queue