diff --git a/src/core/sys/posix/stdio.d b/src/core/sys/posix/stdio.d
index 4fb3655888..c085c862ce 100644
--- a/src/core/sys/posix/stdio.d
+++ b/src/core/sys/posix/stdio.d
@@ -344,3 +344,7 @@ unittest
     assert(memcmp(ptr, testdata.ptr, testdata.length*wchar_t.sizeof) == 0);
     assert(fclose(f) == 0);
 }
+
+
+ssize_t getdelim (char** lineptr, size_t* n, int delimiter, FILE* stream);
+ssize_t getline (char** lineptr, size_t* n, FILE* stream);