Fix build with glibc 2.28
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glibc 2.28 hides a number of internal macros that used to be visible. gnulib
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relied on these macros. Add a patch based on upstream gnulib commit
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4af4a4a71827c0 (fflush: adjust to glibc 2.28 libio.h removal) to fix the
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build.
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Signed-off-by: Baruch Siach <baruch@tkos.co.il>
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---
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Upstream status: gnulib commit 4af4a4a7182
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diff -Nuar dc3dd-7.2.641.orig/lib/freadahead.c dc3dd-7.2.641/lib/freadahead.c
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--- dc3dd-7.2.641.orig/lib/freadahead.c 2012-11-06 23:42:58.000000000 +0200
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+++ dc3dd-7.2.641/lib/freadahead.c 2018-10-26 08:46:36.612492230 +0300
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@@ -24,7 +24,7 @@
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size_t
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freadahead (FILE *fp)
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{
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-#if defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
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+#if defined _IO_EOF_SEEN || defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
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if (fp->_IO_write_ptr > fp->_IO_write_base)
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return 0;
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return (fp->_IO_read_end - fp->_IO_read_ptr)
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diff -Nuar dc3dd-7.2.641.orig/lib/freadptr.c dc3dd-7.2.641/lib/freadptr.c
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--- dc3dd-7.2.641.orig/lib/freadptr.c 2012-11-06 23:42:58.000000000 +0200
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+++ dc3dd-7.2.641/lib/freadptr.c 2018-10-26 08:36:53.965310494 +0300
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@@ -29,7 +29,7 @@
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size_t size;
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/* Keep this code in sync with freadahead! */
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-#if defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
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+#if defined _IO_EOF_SEEN || defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
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if (fp->_IO_write_ptr > fp->_IO_write_base)
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return NULL;
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size = fp->_IO_read_end - fp->_IO_read_ptr;
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diff -Nuar dc3dd-7.2.641.orig/lib/freadseek.c dc3dd-7.2.641/lib/freadseek.c
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--- dc3dd-7.2.641.orig/lib/freadseek.c 2012-11-06 23:42:58.000000000 +0200
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+++ dc3dd-7.2.641/lib/freadseek.c 2018-10-26 08:49:35.387912087 +0300
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@@ -34,7 +34,7 @@
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freadptrinc (FILE *fp, size_t increment)
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{
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/* Keep this code in sync with freadptr! */
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-#if defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
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+#if defined _IO_EOF_SEEN || defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
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fp->_IO_read_ptr += increment;
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#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
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fp_->_p += increment;
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diff -Nuar dc3dd-7.2.641.orig/lib/fseeko.c dc3dd-7.2.641/lib/fseeko.c
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--- dc3dd-7.2.641.orig/lib/fseeko.c 2012-11-06 23:42:58.000000000 +0200
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+++ dc3dd-7.2.641/lib/fseeko.c 2018-10-26 08:51:02.841583936 +0300
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@@ -44,7 +44,7 @@
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#endif
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/* These tests are based on fpurge.c. */
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-#if defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
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+#if defined _IO_EOF_SEEN || defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
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if (fp->_IO_read_end == fp->_IO_read_ptr
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&& fp->_IO_write_ptr == fp->_IO_write_base
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&& fp->_IO_save_base == NULL)
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diff -Nuar dc3dd-7.2.641.orig/lib/fseterr.c dc3dd-7.2.641/lib/fseterr.c
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--- dc3dd-7.2.641.orig/lib/fseterr.c 2012-11-06 23:42:58.000000000 +0200
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+++ dc3dd-7.2.641/lib/fseterr.c 2018-10-26 08:47:51.209919605 +0300
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@@ -29,7 +29,7 @@
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/* Most systems provide FILE as a struct and the necessary bitmask in
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<stdio.h>, because they need it for implementing getc() and putc() as
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fast macros. */
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-#if defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
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+#if defined _IO_EOF_SEEN || defined _IO_ferror_unlocked || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Linux libc5 */
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fp->_flags |= _IO_ERR_SEEN;
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#elif defined __sferror || defined __DragonFly__ /* FreeBSD, NetBSD, OpenBSD, DragonFly, MacOS X, Cygwin */
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fp_->_flags |= __SERR;
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diff -Nuar dc3dd-7.2.641.orig/lib/stdio-impl.h dc3dd-7.2.641/lib/stdio-impl.h
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--- dc3dd-7.2.641.orig/lib/stdio-impl.h 2012-11-06 23:42:58.000000000 +0200
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+++ dc3dd-7.2.641/lib/stdio-impl.h 2018-10-26 08:46:26.136291709 +0300
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@@ -18,6 +18,12 @@
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the same implementation of stdio extension API, except that some fields
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have different naming conventions, or their access requires some casts. */
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+/* Glibc 2.28 made _IO_IN_BACKUP private. For now, work around this
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+ problem by defining it ourselves. FIXME: Do not rely on glibc
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+ internals. */
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+#if !defined _IO_IN_BACKUP && defined _IO_EOF_SEEN
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+# define _IO_IN_BACKUP 0x100
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+#endif
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/* BSD stdio derived implementations. */
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