include the time headers just like we used to do in the curl/curl.h header

once upon the time

src/main.c

@@ -50,9 +50,18 @@
 #include <winsock.h>
 #endif
 
-#ifdef HAVE_SYS_TIME_H
+#ifdef TIME_WITH_SYS_TIME
+/* We can include both fine */
 #include <sys/time.h>
+#include <time.h>
+#else
+#ifdef HAVE_SYS_TIME_H
+# include <sys/time.h>
+#else
+# include <time.h>
 #endif
+#endif
+
 
 #include "version.h"