diff --git a/include/spdlog/.spdlog.h.kate-swp b/include/spdlog/.spdlog.h.kate-swp
deleted file mode 100644
index 546ce39c..00000000
Binary files a/include/spdlog/.spdlog.h.kate-swp and /dev/null differ
diff --git a/include/spdlog/details/os.h b/include/spdlog/details/os.h
index 0467e944..5cf97635 100644
--- a/include/spdlog/details/os.h
+++ b/include/spdlog/details/os.h
@@ -68,9 +68,9 @@ size_t thread_id() SPDLOG_NOEXCEPT;
 // See https://github.com/gabime/spdlog/issues/609
 void sleep_for_millis(int milliseconds) SPDLOG_NOEXCEPT;
 
-std::string filename_to_str(const filename_t &filename);
+std::string filename_to_str(const filename_t &filename) SPDLOG_NOEXCEPT;
 
-int pid();
+int pid() SPDLOG_NOEXCEPT;
 
 // Determine if the terminal supports colors
 // Source: https://github.com/agauniyal/rang/
diff --git a/include/spdlog/details/periodic_worker.h b/include/spdlog/details/periodic_worker.h
index fa6488d1..9e9cd731 100644
--- a/include/spdlog/details/periodic_worker.h
+++ b/include/spdlog/details/periodic_worker.h
@@ -23,43 +23,12 @@ namespace details {
 class periodic_worker
 {
 public:
-    periodic_worker(const std::function<void()> &callback_fun, std::chrono::seconds interval)
-    {
-        active_ = (interval > std::chrono::seconds::zero());
-        if (!active_)
-        {
-            return;
-        }
-
-        worker_thread_ = std::thread([this, callback_fun, interval]() {
-            for (;;)
-            {
-                std::unique_lock<std::mutex> lock(this->mutex_);
-                if (this->cv_.wait_for(lock, interval, [this] { return !this->active_; }))
-                {
-                    return; // active_ == false, so exit this thread
-                }
-                callback_fun();
-            }
-        });
-    }
-
+    periodic_worker(const std::function<void()> &callback_fun, std::chrono::seconds interval);
     periodic_worker(const periodic_worker &) = delete;
     periodic_worker &operator=(const periodic_worker &) = delete;
-
     // stop the worker thread and join it
-    ~periodic_worker()
-    {
-        if (worker_thread_.joinable())
-        {
-            {
-                std::lock_guard<std::mutex> lock(mutex_);
-                active_ = false;
-            }
-            cv_.notify_one();
-            worker_thread_.join();
-        }
-    }
+    ~periodic_worker();
+
 
 private:
     bool active_;
@@ -69,3 +38,8 @@ private:
 };
 } // namespace details
 } // namespace spdlog
+
+
+#ifndef SPDLOG_STATIC_LIB
+#include "spdlog/impl/periodic_worker.cpp"
+#endif
diff --git a/include/spdlog/details/thread_pool.h b/include/spdlog/details/thread_pool.h
index a1efcee6..80c2d11f 100644
--- a/include/spdlog/details/thread_pool.h
+++ b/include/spdlog/details/thread_pool.h
@@ -123,118 +123,36 @@ public:
     using item_type = async_msg;
     using q_type = details::mpmc_blocking_queue<item_type>;
 
-    thread_pool(size_t q_max_items, size_t threads_n)
-        : q_(q_max_items)
-    {
-        // std::cout << "thread_pool()  q_size_bytes: " << q_size_bytes <<
-        // "\tthreads_n: " << threads_n << std::endl;
-        if (threads_n == 0 || threads_n > 1000)
-        {
-            throw spdlog_ex("spdlog::thread_pool(): invalid threads_n param (valid "
-                            "range is 1-1000)");
-        }
-        for (size_t i = 0; i < threads_n; i++)
-        {
-            threads_.emplace_back(&thread_pool::worker_loop_, this);
-        }
-    }
-
+    thread_pool(size_t q_max_items, size_t threads_n);
     // message all threads to terminate gracefully join them
-    ~thread_pool()
-    {
-        try
-        {
-            for (size_t i = 0; i < threads_.size(); i++)
-            {
-                post_async_msg_(async_msg(async_msg_type::terminate), async_overflow_policy::block);
-            }
+    ~thread_pool();
 
-            for (auto &t : threads_)
-            {
-                t.join();
-            }
-        }
-        catch (...)
-        {
-        }
-    }
 
     thread_pool(const thread_pool &) = delete;
     thread_pool &operator=(thread_pool &&) = delete;
 
-    void post_log(async_logger_ptr &&worker_ptr, details::log_msg &msg, async_overflow_policy overflow_policy)
-    {
-        async_msg async_m(std::move(worker_ptr), async_msg_type::log, msg);
-        post_async_msg_(std::move(async_m), overflow_policy);
-    }
+    void post_log(async_logger_ptr &&worker_ptr, details::log_msg &msg, async_overflow_policy overflow_policy);
+    void post_flush(async_logger_ptr &&worker_ptr, async_overflow_policy overflow_policy);
+    size_t overrun_counter();
 
-    void post_flush(async_logger_ptr &&worker_ptr, async_overflow_policy overflow_policy)
-    {
-        post_async_msg_(async_msg(std::move(worker_ptr), async_msg_type::flush), overflow_policy);
-    }
-
-    size_t overrun_counter()
-    {
-        return q_.overrun_counter();
-    }
 
 private:
     q_type q_;
 
     std::vector<std::thread> threads_;
 
-    void post_async_msg_(async_msg &&new_msg, async_overflow_policy overflow_policy)
-    {
-        if (overflow_policy == async_overflow_policy::block)
-        {
-            q_.enqueue(std::move(new_msg));
-        }
-        else
-        {
-            q_.enqueue_nowait(std::move(new_msg));
-        }
-    }
-
-    void worker_loop_()
-    {
-        while (process_next_msg_()) {};
-    }
+    void post_async_msg_(async_msg &&new_msg, async_overflow_policy overflow_policy);
+    void worker_loop_();
 
     // process next message in the queue
     // return true if this thread should still be active (while no terminate msg
     // was received)
-    bool process_next_msg_()
-    {
-        async_msg incoming_async_msg;
-        bool dequeued = q_.dequeue_for(incoming_async_msg, std::chrono::seconds(10));
-        if (!dequeued)
-        {
-            return true;
-        }
-
-        switch (incoming_async_msg.msg_type)
-        {
-        case async_msg_type::log:
-        {
-            auto msg = incoming_async_msg.to_log_msg();
-            incoming_async_msg.worker_ptr->backend_log_(msg);
-            return true;
-        }
-        case async_msg_type::flush:
-        {
-            incoming_async_msg.worker_ptr->backend_flush_();
-            return true;
-        }
-
-        case async_msg_type::terminate:
-        {
-            return false;
-        }
-        }
-        assert(false && "Unexpected async_msg_type");
-        return true;
-    }
+    bool process_next_msg_();
 };
 
 } // namespace details
 } // namespace spdlog
+
+#ifndef SPDLOG_STATIC_LIB
+#include "spdlog/impl/thread_pool.cpp"
+#endif
\ No newline at end of file
diff --git a/include/spdlog/impl/os.cpp b/include/spdlog/impl/os.cpp
index e4260dba..ed174cf1 100644
--- a/include/spdlog/impl/os.cpp
+++ b/include/spdlog/impl/os.cpp
@@ -340,19 +340,19 @@ SPDLOG_INLINE void sleep_for_millis(int milliseconds) SPDLOG_NOEXCEPT
 
 // wchar support for windows file names (SPDLOG_WCHAR_FILENAMES must be defined)
 #if defined(_WIN32) && defined(SPDLOG_WCHAR_FILENAMES)
-SPDLOG_INLINE std::string filename_to_str(const filename_t &filename)
+SPDLOG_INLINE std::string filename_to_str(const filename_t &filename) SPDLOG_NOEXCEPT
 {
     std::wstring_convert<std::codecvt_utf8<wchar_t>, wchar_t> c;
     return c.to_bytes(filename);
 }
 #else
-SPDLOG_INLINE std::string filename_to_str(const filename_t &filename)
+SPDLOG_INLINE std::string filename_to_str(const filename_t &filename) SPDLOG_NOEXCEPT
 {
     return filename;
 }
 #endif
 
-SPDLOG_INLINE int pid()
+SPDLOG_INLINE int pid() SPDLOG_NOEXCEPT
 {
 
 #ifdef _WIN32
diff --git a/include/spdlog/impl/periodic_worker.cpp b/include/spdlog/impl/periodic_worker.cpp
new file mode 100644
index 00000000..6c0e997d
--- /dev/null
+++ b/include/spdlog/impl/periodic_worker.cpp
@@ -0,0 +1,45 @@
+//
+// Created by gabi on 5/8/19.
+//
+
+#ifdef SPDLOG_STATIC_LIB
+#include "spdlog/details/periodic_worker.h"
+#endif
+
+#include "spdlog/common.h"
+
+SPDLOG_INLINE spdlog::details::periodic_worker::periodic_worker(const std::function<void()> &callback_fun, std::chrono::seconds interval)
+{
+    active_ = (interval > std::chrono::seconds::zero());
+    if (!active_)
+    {
+        return;
+    }
+
+    worker_thread_ = std::thread([this, callback_fun, interval]() {
+        for (;;)
+        {
+            std::unique_lock<std::mutex> lock(this->mutex_);
+            if (this->cv_.wait_for(lock, interval, [this] { return !this->active_; }))
+            {
+                return; // active_ == false, so exit this thread
+            }
+            callback_fun();
+        }
+    });
+}
+
+// stop the worker thread and join it
+SPDLOG_INLINE spdlog::details::periodic_worker::~periodic_worker()
+{
+    if (worker_thread_.joinable())
+    {
+        {
+            std::lock_guard<std::mutex> lock(mutex_);
+            active_ = false;
+        }
+        cv_.notify_one();
+        worker_thread_.join();
+    }
+}
+
diff --git a/include/spdlog/impl/thread_pool.cpp b/include/spdlog/impl/thread_pool.cpp
new file mode 100644
index 00000000..66c26fd6
--- /dev/null
+++ b/include/spdlog/impl/thread_pool.cpp
@@ -0,0 +1,116 @@
+#ifdef SPDLOG_STATIC_LIB
+#include "spdlog/async_logger.h"
+#include "spdlog/details/thread_pool.h"
+
+template class spdlog::details::mpmc_blocking_queue<spdlog::details::async_msg>;
+
+#endif
+
+#include "spdlog/common.h"
+
+SPDLOG_INLINE spdlog::details::thread_pool::thread_pool(size_t q_max_items, size_t threads_n) : q_(q_max_items)
+{
+        // std::cout << "thread_pool()  q_size_bytes: " << q_size_bytes <<
+        // "\tthreads_n: " << threads_n << std::endl;
+        if (threads_n == 0 || threads_n > 1000)
+        {
+            throw spdlog_ex("spdlog::thread_pool(): invalid threads_n param (valid "
+                            "range is 1-1000)");
+        }
+        for (size_t i = 0; i < threads_n; i++)
+        {
+            threads_.emplace_back(&thread_pool::worker_loop_, this);
+        }
+}
+
+// message all threads to terminate gracefully join them
+SPDLOG_INLINE spdlog::details::thread_pool::~thread_pool()
+{
+    try
+    {
+        for (size_t i = 0; i < threads_.size(); i++)
+        {
+            post_async_msg_(async_msg(async_msg_type::terminate), async_overflow_policy::block);
+        }
+
+        for (auto &t : threads_)
+        {
+            t.join();
+        }
+    }
+    catch (...)
+    {
+    }
+}
+
+void SPDLOG_INLINE spdlog::details::thread_pool::post_log(async_logger_ptr &&worker_ptr, details::log_msg &msg, async_overflow_policy overflow_policy)
+{
+    async_msg async_m(std::move(worker_ptr), async_msg_type::log, msg);
+    post_async_msg_(std::move(async_m), overflow_policy);
+}
+
+void SPDLOG_INLINE spdlog::details::thread_pool::post_flush(async_logger_ptr &&worker_ptr, async_overflow_policy overflow_policy)
+{
+    post_async_msg_(async_msg(std::move(worker_ptr), async_msg_type::flush), overflow_policy);
+}
+
+size_t SPDLOG_INLINE spdlog::details::thread_pool::overrun_counter()
+{
+    return q_.overrun_counter();
+}
+
+void SPDLOG_INLINE spdlog::details::thread_pool::post_async_msg_(async_msg &&new_msg, async_overflow_policy overflow_policy)
+{
+    if (overflow_policy == async_overflow_policy::block)
+    {
+        q_.enqueue(std::move(new_msg));
+    }
+    else
+    {
+        q_.enqueue_nowait(std::move(new_msg));
+    }
+}
+
+void SPDLOG_INLINE spdlog::details::thread_pool::worker_loop_()
+{
+    while (process_next_msg_()) {};
+}
+
+// process next message in the queue
+// return true if this thread should still be active (while no terminate msg
+// was received)
+bool SPDLOG_INLINE spdlog::details::thread_pool::process_next_msg_()
+{
+    async_msg incoming_async_msg;
+    bool dequeued = q_.dequeue_for(incoming_async_msg, std::chrono::seconds(10));
+    if (!dequeued)
+    {
+        return true;
+    }
+
+    switch (incoming_async_msg.msg_type)
+    {
+        case async_msg_type::log:
+        {
+            auto msg = incoming_async_msg.to_log_msg();
+            incoming_async_msg.worker_ptr->backend_log_(msg);
+            return true;
+        }
+        case async_msg_type::flush:
+        {
+            incoming_async_msg.worker_ptr->backend_flush_();
+            return true;
+        }
+
+        case async_msg_type::terminate:
+        {
+            return false;
+        }
+    }
+    assert(false && "Unexpected async_msg_type");
+    return true;
+}
+
+
+
+