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-rw-r--r--lib/stdio-impl.h6
1 files changed, 6 insertions, 0 deletions
diff --git a/lib/stdio-impl.h b/lib/stdio-impl.h
index 78d896e9f55..05c5752a243 100644
--- a/lib/stdio-impl.h
+++ b/lib/stdio-impl.h
@@ -18,6 +18,12 @@
the same implementation of stdio extension API, except that some fields
have different naming conventions, or their access requires some casts. */
+/* Glibc 2.28 made _IO_IN_BACKUP private. For now, work around this
+ problem by defining it ourselves. FIXME: Do not rely on glibc
+ internals. */
+#if !defined _IO_IN_BACKUP && defined _IO_EOF_SEEN
+# define _IO_IN_BACKUP 0x100
+#endif
/* BSD stdio derived implementations. */