Fix Windows compatibility

src/config.h.in

@@ -1,7 +1,11 @@
 #ifndef CONFIG_H
 #define CONFIG_H
 
+#ifdef _WIN32
+#define DATADIR "../share/Parsodus/"
+#else
 #define DATADIR "@CMAKE_INSTALL_PREFIX@/share/Parsodus/"
+#endif
 
 #endif //CONFIG_H
 

src/driver.cpp

@@ -4,6 +4,11 @@
 #include <fstream>
 #include <sys/stat.h>
 
+
+#if defined(_WIN32)
+#include <direct.h>  
+#endif
+
 namespace {
     /**
      * Filter only valid identifier chars: alphanumeric, and not starting with a digit