===================================================================
RCS file: /home/cvs/OpenXM_contrib2/asir2018/include/ox.h,v
retrieving revision 1.2
retrieving revision 1.6
diff -u -p -r1.2 -r1.6
--- OpenXM_contrib2/asir2018/include/ox.h	2019/12/13 14:40:50	1.2
+++ OpenXM_contrib2/asir2018/include/ox.h	2020/11/15 16:15:17	1.6
@@ -45,9 +45,12 @@
  * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
  * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
  *
- * $OpenXM: OpenXM_contrib2/asir2018/include/ox.h,v 1.1 2018/09/19 06:00:58 noro Exp $
+ * $OpenXM: OpenXM_contrib2/asir2018/include/ox.h,v 1.5 2020/10/31 03:17:14 noro Exp $
 */
 #include "com.h"
+#if defined(linux)
+#include <stdio_ext.h>
+#endif
 
 /* version */
 
@@ -159,7 +162,9 @@ typedef FILE *ox_stream;
 /* a macro to check whether data are available in the read buffer */
 #if defined(ANDROID)
 #define FP_DATA_IS_AVAILABLE(fp) ((fp)->_r)
-#elif defined(linux)
+#elif !defined(__GLIBC__) && defined(linux)
+#define FP_DATA_IS_AVAILABLE(fp) (__freadahead(fp) > 0)
+#elif defined(__GLIBC__) && defined(linux)
 #define FP_DATA_IS_AVAILABLE(fp) ((fp)->_IO_read_ptr < (fp)->_IO_read_end)
 #elif defined(__FreeBSD__) || defined(__DARWIN__) || (defined(__MACH__) && defined(__ppc__)) || defined(__CYGWIN__) || defined(__INTERIX)
 #define FP_DATA_IS_AVAILABLE(fp) ((fp)->_r)