Index: src/OFDate.m
==================================================================
--- src/OFDate.m
+++ src/OFDate.m
@@ -50,11 +50,11 @@
     defined(OF_HAVE_THREADS)
 static OFMutex *mutex;
 #endif
 
 #ifdef OF_WINDOWS
-static WINAPI __time64_t (*func__mktime64)(struct tm *);
+static __time64_t (*func__mktime64)(struct tm *);
 #endif
 
 #ifdef HAVE_GMTIME_R
 # define GMTIME_RET(field)						\
 	time_t seconds = (time_t)_seconds;				\
@@ -204,11 +204,11 @@
 	mutex = [[OFMutex alloc] init];
 #endif
 
 #ifdef OF_WINDOWS
 	if ((module = LoadLibrary("msvcrt.dll")) != NULL)
-		func__mktime64 = (WINAPI __time64_t (*)(struct tm *))
+		func__mktime64 = (__time64_t (*)(struct tm *))
 		    GetProcAddress(module, "_mktime64");
 #endif
 }
 
 + (instancetype)date