1diff -r -U3 coreutils-7.6/lib/freadahead.c coreutils-7.6-patched/lib/freadahead.c 2--- coreutils-7.6/lib/freadahead.c 2009-05-03 23:46:33.000000000 -0600 3+++ coreutils-7.6-patched/lib/freadahead.c 2019-08-01 17:30:54.589238442 -0600 4@@ -25,7 +25,7 @@ 5 size_t 6 freadahead (FILE *fp) 7 { 8-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ 9+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ 10 if (fp->_IO_write_ptr > fp->_IO_write_base) 11 return 0; 12 return (fp->_IO_read_end - fp->_IO_read_ptr) 13diff -r -U3 coreutils-7.6/lib/freadptr.c coreutils-7.6-patched/lib/freadptr.c 14--- coreutils-7.6/lib/freadptr.c 2009-05-03 23:46:33.000000000 -0600 15+++ coreutils-7.6-patched/lib/freadptr.c 2019-08-01 17:34:10.692659598 -0600 16@@ -29,7 +29,7 @@ 17 size_t size; 18 19 /* Keep this code in sync with freadahead! */ 20-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ 21+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ 22 if (fp->_IO_write_ptr > fp->_IO_write_base) 23 return NULL; 24 size = fp->_IO_read_end - fp->_IO_read_ptr; 25diff -r -U3 coreutils-7.6/lib/freadseek.c coreutils-7.6-patched/lib/freadseek.c 26--- coreutils-7.6/lib/freadseek.c 2009-05-03 23:46:33.000000000 -0600 27+++ coreutils-7.6-patched/lib/freadseek.c 2019-08-01 17:34:41.013164702 -0600 28@@ -34,7 +34,7 @@ 29 freadptrinc (FILE *fp, size_t increment) 30 { 31 /* Keep this code in sync with freadptr! */ 32-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ 33+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ 34 fp->_IO_read_ptr += increment; 35 #elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */ 36 fp_->_p += increment; 37diff -r -U3 coreutils-7.6/lib/fseeko.c coreutils-7.6-patched/lib/fseeko.c 38--- coreutils-7.6/lib/fseeko.c 2009-08-09 10:16:11.000000000 -0600 39+++ coreutils-7.6-patched/lib/fseeko.c 2019-08-01 17:36:11.030633785 -0600 40@@ -44,7 +44,7 @@ 41 #endif 42 43 /* These tests are based on fpurge.c. */ 44-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ 45+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ 46 if (fp->_IO_read_end == fp->_IO_read_ptr 47 && fp->_IO_write_ptr == fp->_IO_write_base 48 && fp->_IO_save_base == NULL) 49diff -r -U3 coreutils-7.6/lib/fseterr.c coreutils-7.6-patched/lib/fseterr.c 50--- coreutils-7.6/lib/fseterr.c 2009-05-03 23:46:33.000000000 -0600 51+++ coreutils-7.6-patched/lib/fseterr.c 2019-08-01 17:34:57.285433551 -0600 52@@ -29,7 +29,7 @@ 53 /* Most systems provide FILE as a struct and the necessary bitmask in 54 <stdio.h>, because they need it for implementing getc() and putc() as 55 fast macros. */ 56-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ 57+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ 58 fp->_flags |= _IO_ERR_SEEN; 59 #elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */ 60 fp_->_flags |= __SERR; 61diff -r -U3 coreutils-7.6/lib/stdio-impl.h coreutils-7.6-patched/lib/stdio-impl.h 62--- coreutils-7.6/lib/stdio-impl.h 2009-05-03 23:46:34.000000000 -0600 63+++ coreutils-7.6-patched/lib/stdio-impl.h 2019-08-01 17:32:36.431051254 -0600 64@@ -18,6 +18,12 @@ 65 the same implementation of stdio extension API, except that some fields 66 have different naming conventions, or their access requires some casts. */ 67 68+/* Glibc 2.28 made _IO_IN_BACKUP private. For now, work around this 69+ * problem by defining it ourselves. FIXME: Do not rely on glibc 70+ * internals. */ 71+#if !defined _IO_IN_BACKUP && defined _IO_EOF_SEEN 72+# define _IO_IN_BACKUP 0x100 73+#endif 74 75 /* BSD stdio derived implementations. */ 76