1 files changed, 2 insertions, 0 deletions
diff --git a/io.c b/io.c
index 6829efff1c..47243563a6 100644
--- a/io.c
+++ b/io.c
@@ -119,6 +119,8 @@ static VALUE lineno;
 #  define READ_DATA_PENDING_COUNT(fp) ((fp)->FILE_COUNT)
 #elif defined(__BEOS__)
 #  define READ_DATA_PENDING(fp) (fp->_state._eof == 0)
+#elif defined(__UCLIBC__)
+#  define READ_DATA_PENDING(fp) ((fp)->bufpos < (fp)->bufend)
 #else
 /* requires systems own version of the ReadDataPending() */
 extern int ReadDataPending();