diff --git a/include/dynloader.h b/include/dynloader.h
index 3a2b7f4ad..d2c35005c 100644
--- a/include/dynloader.h
+++ b/include/dynloader.h
@@ -15,18 +15,18 @@
 #endif // __APPLE__
 #endif // _POSIX
 
-#if defined (_WIN)
+#ifdef _WIN
 #include <windows.h>
-#endif // _WIN
+#endif
 
-#if defined (_WIN)
-#define hc_dlopen  LoadLibrary
-#define hc_dlclose FreeLibrary
-#define hc_dlsym   GetProcAddress
+#ifdef _WIN
+HMODULE hc_dlopen  (LPCSTR lpLibFileName);
+BOOL    hc_dlclose (HMODULE hLibModule);
+FARPROC hc_dlsym   (HMODULE hModule, LPCSTR lpProcName);
 #else
-#define hc_dlopen  dlopen
-#define hc_dlclose dlclose
-#define hc_dlsym   dlsym
+void *hc_dlopen  (const char *fileName, int flag);
+int   hc_dlclose (void *handle);
+void *hc_dlsym   (void *module, const char *symbol);
 #endif
 
 #define HC_LOAD_FUNC2(ptr,name,type,var,libname,noerr) \
diff --git a/src/dynloader.c b/src/dynloader.c
index ce0bf30f7..9aa3276a8 100644
--- a/src/dynloader.c
+++ b/src/dynloader.c
@@ -5,3 +5,39 @@
 
 #include "common.h"
 #include "dynloader.h"
+
+#ifdef _WIN
+
+HMODULE hc_dlopen (LPCSTR lpLibFileName)
+{
+  return LoadLibraryA (lpLibFileName);
+}
+
+BOOL hc_dlclose (HMODULE hLibModule)
+{
+  return FreeLibrary (hLibModule);
+}
+
+FARPROC hc_dlsym (HMODULE hModule, LPCSTR lpProcName)
+{
+  return GetProcAddress (hModule, lpProcName);
+}
+
+#else
+
+void *hc_dlopen (const char *fileName, int flag)
+{
+  return dlopen (fileName, flag);
+}
+
+int hc_dlclose (void * handle)
+{
+  return dlclose (handle);
+}
+
+void *hc_dlsym (void *module, const char *symbol)
+{
+  return dlsym (module, symbol);
+}
+
+#endif