[fix] specifying numex dir with cross-platform PATH_SEPARATOR

src/numex.h

@@ -21,7 +21,7 @@ extern "C" {
 #include "trie.h"
 #include "trie_search.h"
 
-#define DEFAULT_NUMEX_PATH LIBPOSTAL_DATA_DIR "/numex/numex.dat"
+#define DEFAULT_NUMEX_PATH LIBPOSTAL_DATA_DIR PATH_SEPARATOR "numex" PATH_SEPARATOR "numex.dat"
 
 #define GENDER_MASCULINE_PREFIX "m"
 #define GENDER_FEMININE_PREFIX "f"
@@ -152,4 +152,4 @@ void numex_module_teardown(void);
 }
 #endif
 
-#endif
+#endif