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diff -r -U3 coreutils-8.18/lib/freadahead.c coreutils-8.18-patched/lib/freadahead.c
--- coreutils-8.18/lib/freadahead.c 2012-07-15 06:26:12.000000000 -0600
+++ coreutils-8.18-patched/lib/freadahead.c 2019-08-01 19:22:13.169332844 -0600
@@ -25,7 +25,7 @@
size_t
freadahead (FILE *fp)
{
-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
if (fp->_IO_write_ptr > fp->_IO_write_base)
return 0;
return (fp->_IO_read_end - fp->_IO_read_ptr)
diff -r -U3 coreutils-8.18/lib/freadptr.c coreutils-8.18-patched/lib/freadptr.c
--- coreutils-8.18/lib/freadptr.c 2012-07-15 06:26:12.000000000 -0600
+++ coreutils-8.18-patched/lib/freadptr.c 2019-08-01 19:22:13.169332844 -0600
@@ -29,7 +29,7 @@
size_t size;
/* Keep this code in sync with freadahead! */
-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
if (fp->_IO_write_ptr > fp->_IO_write_base)
return NULL;
size = fp->_IO_read_end - fp->_IO_read_ptr;
diff -r -U3 coreutils-8.18/lib/freadseek.c coreutils-8.18-patched/lib/freadseek.c
--- coreutils-8.18/lib/freadseek.c 2012-07-15 06:26:12.000000000 -0600
+++ coreutils-8.18-patched/lib/freadseek.c 2019-08-01 19:23:20.070111747 -0600
@@ -36,7 +36,7 @@
/* Keep this code in sync with freadptr! */
#if HAVE___FREADPTRINC /* musl libc */
__freadptrinc (fp, increment);
-#elif defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+#elif defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
fp->_IO_read_ptr += increment;
#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
fp_->_p += increment;
diff -r -U3 coreutils-8.18/lib/fseeko.c coreutils-8.18-patched/lib/fseeko.c
--- coreutils-8.18/lib/fseeko.c 2012-07-13 08:18:33.000000000 -0600
+++ coreutils-8.18-patched/lib/fseeko.c 2019-08-01 19:22:13.169332844 -0600
@@ -47,7 +47,7 @@
#endif
/* These tests are based on fpurge.c. */
-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
if (fp->_IO_read_end == fp->_IO_read_ptr
&& fp->_IO_write_ptr == fp->_IO_write_base
&& fp->_IO_save_base == NULL)
diff -r -U3 coreutils-8.18/lib/fseterr.c coreutils-8.18-patched/lib/fseterr.c
--- coreutils-8.18/lib/fseterr.c 2012-07-15 06:26:12.000000000 -0600
+++ coreutils-8.18-patched/lib/fseterr.c 2019-08-01 19:22:13.169332844 -0600
@@ -29,7 +29,7 @@
/* Most systems provide FILE as a struct and the necessary bitmask in
<stdio.h>, because they need it for implementing getc() and putc() as
fast macros. */
-#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
+#if defined _IO_EOF_SEEN || defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */
fp->_flags |= _IO_ERR_SEEN;
#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin */
fp_->_flags |= __SERR;
diff -r -U3 coreutils-8.18/lib/stdio-impl.h coreutils-8.18-patched/lib/stdio-impl.h
--- coreutils-8.18/lib/stdio-impl.h 2012-07-15 06:26:12.000000000 -0600
+++ coreutils-8.18-patched/lib/stdio-impl.h 2019-08-01 19:22:13.169332844 -0600
@@ -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. */
diff -r -U3 coreutils-8.18/lib/stdio.in.h coreutils-8.18-patched/lib/stdio.in.h
--- coreutils-8.18/lib/stdio.in.h 2012-06-12 14:43:46.000000000 -0600
+++ coreutils-8.18-patched/lib/stdio.in.h 2019-08-01 19:22:13.169332844 -0600
@@ -704,7 +704,7 @@
removed it. */
#undef gets
#if HAVE_RAW_DECL_GETS
-_GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");
+/*_GL_WARN_ON_USE (gets, "gets is a security hole - use fgets instead");*/
#endif
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