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-remainderf-ieee.c
tests/test-remainder-ieee.h
tests/minus-zero.h
tests/infinity.h
tests/nan.h
tests/macros.h

Depends-on:
isnanf-nolibm
float
signbit

configure.ac:

Makefile.am:
TESTS += test-remainderf-ieee
check_PROGRAMS += test-remainderf-ieee
test_remainderf_ieee_LDADD = $(LDADD) @REMAINDERF_LIBM@