fbufmode: Fix compilation error on glibc >= 2.28 systems.

* lib/stdio-impl.h (_IO_UNBUFFERED): Define fallback on glibc >= 2.28.

1 files changed, 5 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index 51812c5650..df438e96da 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2019-09-29  Bruno Haible  <bruno@clisp.org>
+
+	fbufmode: Fix compilation error on glibc >= 2.28 systems.
+	* lib/stdio-impl.h (_IO_UNBUFFERED): Define fallback on glibc >= 2.28.
+
 2019-09-28  Bruno Haible  <bruno@clisp.org>
 
 	Update comments that refer to POSIX.