| fix build failure against glibc-2.28 |
| |
| https://bugs.gentoo.org/663928 |
| |
| Adopted gnulib's upstream patch: |
| |
| From 4af4a4a71827c0bc5e0ec67af23edef4f15cee8e Mon Sep 17 00:00:00 2001 |
| From: Paul Eggert <eggert@cs.ucla.edu> |
| Date: Mon, 5 Mar 2018 10:56:29 -0800 |
| Subject: [PATCH] fflush: adjust to glibc 2.28 libio.h removal |
| MIME-Version: 1.0 |
| Content-Type: text/plain; charset=UTF-8 |
| Content-Transfer-Encoding: 8bit |
| |
| Problem reported by Daniel P. Berrangé in: |
| https://lists.gnu.org/r/bug-gnulib/2018-03/msg00000.html |
| * lib/fflush.c (clear_ungetc_buffer_preserving_position) |
| (disable_seek_optimization, rpl_fflush): |
| * lib/fpurge.c (fpurge): |
| * lib/freadahead.c (freadahead): |
| * lib/freading.c (freading): |
| * lib/fseeko.c (fseeko): |
| * lib/fseterr.c (fseterr): |
| Check _IO_EOF_SEEN instead of _IO_ftrylockfile. |
| * lib/stdio-impl.h (_IO_IN_BACKUP) [_IO_EOF_SEEN]: |
| Define if not already defined. |
| --- |
| lib/fflush.c | 6 +++--- |
| lib/fpurge.c | 2 +- |
| lib/freading.c | 2 +- |
| lib/fseeko.c | 4 ++-- |
| lib/fseterr.c | 2 +- |
| lib/stdio-impl.h | 6 ++++++ |
| |
| --- a/lib/fflush.c |
| +++ b/lib/fflush.c |
| @@ -33,7 +33,7 @@ |
| #undef fflush |
| |
| |
| -#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ |
| +#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ |
| |
| /* Clear the stream's ungetc buffer, preserving the value of ftello (fp). */ |
| static void |
| @@ -72,7 +72,7 @@ clear_ungetc_buffer (FILE *fp) |
| |
| #endif |
| |
| -#if ! (defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */) |
| +#if ! (defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */) |
| |
| # if (defined __sferror || defined __DragonFly__ || defined __ANDROID__) && defined __SNPT |
| /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Minix 3, Android */ |
| @@ -148,7 +148,7 @@ rpl_fflush (FILE *stream) |
| if (stream == NULL || ! freading (stream)) |
| return fflush (stream); |
| |
| -#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ |
| +#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ |
| |
| clear_ungetc_buffer_preserving_position (stream); |
| |
| --- a/lib/fpurge.c |
| +++ b/lib/fpurge.c |
| @@ -62,7 +62,7 @@ fpurge (FILE *fp) |
| /* 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 || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ |
| fp->_IO_read_end = fp->_IO_read_ptr; |
| fp->_IO_write_ptr = fp->_IO_write_base; |
| /* Avoid memory leak when there is an active ungetc buffer. */ |
| --- a/lib/freading.c |
| +++ b/lib/freading.c |
| @@ -31,7 +31,7 @@ freading (FILE *fp) |
| /* 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 || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ |
| return ((fp->_flags & _IO_NO_WRITES) != 0 |
| || ((fp->_flags & (_IO_NO_READS | _IO_CURRENTLY_PUTTING)) == 0 |
| && fp->_IO_read_base != NULL)); |
| --- a/lib/fseeko.c |
| +++ b/lib/fseeko.c |
| @@ -47,7 +47,7 @@ fseeko (FILE *fp, off_t offset, int whence) |
| #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 || __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) |
| @@ -123,7 +123,7 @@ fseeko (FILE *fp, off_t offset, int whence) |
| return -1; |
| } |
| |
| -#if defined _IO_ftrylockfile || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ |
| +#if defined _IO_EOF_SEEN || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ |
| fp->_flags &= ~_IO_EOF_SEEN; |
| fp->_offset = pos; |
| #elif defined __sferror || defined __DragonFly__ || defined __ANDROID__ |
| --- a/lib/fseterr.c |
| +++ b/lib/fseterr.c |
| @@ -29,7 +29,7 @@ fseterr (FILE *fp) |
| /* 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 || __GNU_LIBRARY__ == 1 /* GNU libc, BeOS, Haiku, Linux libc5 */ |
| fp->_flags |= _IO_ERR_SEEN; |
| #elif defined __sferror || defined __DragonFly__ || defined __ANDROID__ |
| /* FreeBSD, NetBSD, OpenBSD, DragonFly, Mac OS X, Cygwin, Minix 3, Android */ |
| --- 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. */ |
| |
| -- |
| 2.19.1 |
| |