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comparison doc/glibc-functions/ptsname_r.texi @ 40140:81f075eaa990

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ptsname_r: Work around bug on Android 4.3. * m4/ptsname_r.m4 (gl_FUNC_PTSNAME_R): Define HAVE_ESSENTIALLY_WORKING_PTSNAME_R. Test whether the return value is correct. * lib/ptsname_r.c (__ptsname_r): If HAVE_ESSENTIALLY_WORKING_PTSNAME_R is defined, just fix the return value. * doc/glibc-functions/ptsname_r.texi: Mention the Android bug. Reword: The behaviour of musl libc is nothing to be "fixed", since it is compliant with the next POSIX standard.
author Bruno Haible <bruno@clisp.org>
date Sat, 26 Jan 2019 15:23:19 +0100
parents 73d60b1f9c96
children
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40139:3bacbf659cc9 40140:81f075eaa990
16 on some platforms: 16 on some platforms:
17 OSF/1 5.1. 17 OSF/1 5.1.
18 @item 18 @item
19 This function has an incompatible declaration on some platforms: 19 This function has an incompatible declaration on some platforms:
20 OSF/1 5.1. 20 OSF/1 5.1.
21 @item
22 When this functions fails, it returns -1 instead of the error code
23 on some platforms:
24 Android 4.3.
21 @end itemize 25 @end itemize
22 26
23 Portability problems not fixed by Gnulib: 27 Portability problems not fixed by Gnulib:
24 @itemize 28 @itemize
25 @item
26 When this functions fails, it provides the error code only as the
27 return value, without setting @code{errno}, on some platforms:
28 musl libc.
29 @end itemize 29 @end itemize
30
31 Note: Portable programs should expect to find the error code as the
32 return value of this function, not as the value of @code{errno}.
33 This is needed for compatibility with musl libc and with the
34 forthcoming POSIX Issue 8.