diff --git a/c/dtypes.h b/c/dtypes.h
index 54d5896..552c36c 100644
--- a/c/dtypes.h
+++ b/c/dtypes.h
@@ -16,18 +16,6 @@
 #undef BITS32   // TODO
 #define BITS64  // TODO
 
-#ifdef _WIN32
-#define STDCALL __stdcall
-#if defined(IMPORT_EXPORTS)
-#define DLLEXPORT __declspec(dllimport)
-#else
-#define DLLEXPORT __declspec(dllexport)
-#endif
-#else
-#define STDCALL
-#define DLLEXPORT __attribute__((visibility("default")))
-#endif
-
 #define LLT_ALLOC(n) malloc(n)
 #define LLT_REALLOC(p, n) realloc((p), (n))
 #define LLT_FREE(x) free(x)
diff --git a/c/wcwidth.h b/c/wcwidth.h
index cf8d4d2..2f5a53b 100644
--- a/c/wcwidth.h
+++ b/c/wcwidth.h
@@ -119,7 +119,7 @@ static int bisearch(uint32_t ucs, const struct interval *table, int max)
  * in ISO 10646.
  */
 
-DLLEXPORT int wcwidth(uint32_t ucs)
+int wcwidth(uint32_t ucs)
 {
     /* sorted list of non-overlapping intervals of non-spacing characters */
     /* generated by "uniset +cat=Me +cat=Mn +cat=Cf -00AD +1160-11FF +200B c"