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| author | Ulrich Drepper <drepper@redhat.com> | 2000-09-06 03:40:54 +0000 |
|---|---|---|
| committer | Ulrich Drepper <drepper@redhat.com> | 2000-09-06 03:40:54 +0000 |
| commit | 8bfae061d038986f215162e505aefd7ff2384c84 (patch) | |
| tree | cf8424b010a04820c9ff3c79c92c79f98c311c2f /libio/libio.h | |
| parent | b853e8fa2ef3dafe300b386426012509a50d6175 (diff) | |
| download | glibc-8bfae061d038986f215162e505aefd7ff2384c84.tar.gz glibc-8bfae061d038986f215162e505aefd7ff2384c84.tar.xz glibc-8bfae061d038986f215162e505aefd7ff2384c84.zip | |
Update.
2000-09-05 Ulrich Drepper <drepper@redhat.com> * libio/libio.h (_IO_fwide_maybe_incompatible): For glibc 2.0 compatibility check for old stream and call _IO_wide in doubt. (_IO_fwide): Use _IO_fwide_maybe_incompatible macro. * libio/iofwide.c (_IO_fwide): If compatibility with glibc 2.0 is needed tst for such an old structure and don't do anything. * libio/freopen.c: Remove declaration of _IO_stdin_used. * soft-fp/Makefile (distribute): Add op-8.h and testit.c. * soft-fp/Makefile (distribute): Add the math functions, too. * soft-fp/Makefile (distribute): Add ChangeLog, Banner, and configure. * soft-fp/soft-fp.h (_FP_ROUND_ZERO): Cast 0 to void before using it as a statement. * soft-fp/sysdeps/powerpc/Makefile (routines): New file. * soft-fp/sysdeps/powerpc/q_*: New files.
Diffstat (limited to 'libio/libio.h')
| -rw-r--r-- | libio/libio.h | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/libio/libio.h b/libio/libio.h index 12826ffe11..edf52401f3 100644 --- a/libio/libio.h +++ b/libio/libio.h @@ -472,11 +472,25 @@ extern _IO_wint_t _IO_getwc (_IO_FILE *__fp) __THROW; extern _IO_wint_t _IO_putwc (wchar_t __wc, _IO_FILE *__fp) __THROW; extern int _IO_fwide (_IO_FILE *__fp, int __mode) __THROW; # if __GNUC__ >= 2 +/* While compiling glibc we have to handle compatibility with very old + versions. */ +# if defined _LIBC && defined SHARED +# include <shlib-compat.h> +# if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_1) +# define _IO_fwide_maybe_incompatible \ + (__builtin_expect (&_IO_stdin_used == NULL, 0)) +extern const int _IO_stdin_used; +weak_extern (_IO_stdin_used); +# endif +# endif +# ifndef _IO_fwide_maybe_incompatible +# define _IO_fwide_maybe_incompatible (0) +# endif /* A special optimized version of the function above. It optimizes the case of initializing an unoriented byte stream. */ # define _IO_fwide(__fp, __mode) \ ({ int __result = (__mode); \ - if (__result < 0) \ + if (__result < 0 && ! _IO_fwide_maybe_incompatible) \ { \ if ((__fp)->_mode == 0) \ /* We know that all we have to do is to set the flag. */ \ |