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.

Files:
tests/test-mbscasecmp.sh
tests/test-mbscasecmp.c
tests/macros.h
m4/locale-tr.m4
m4/codeset.m4

Depends-on:
setlocale

configure.ac:
gt_LOCALE_TR_UTF8

Makefile.am:
TESTS += test-mbscasecmp.sh
TESTS_ENVIRONMENT += LOCALE_TR_UTF8='@LOCALE_TR_UTF8@'
check_PROGRAMS += test-mbscasecmp