New module 'logbf'. * lib/math.in.h (logbf): New declaration. * lib/logbf.c: New file. * m4/logbf.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether logbf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_LOGBF, HAVE_LOGBF, REPLACE_LOGBF. * modules/math (Makefile.am): Substitute GNULIB_LOGBF, HAVE_LOGBF, REPLACE_LOGBF. * modules/logbf: New file. * tests/test-math-c++.cc: Check the declaration of logbf. * doc/posix-functions/logbf.texi: Mention the new module.

Files:
tests/test-roundl-ieee.c
tests/minus-zero.h
tests/infinity.h
tests/nan.h
tests/macros.h

Depends-on:
isnanl-nolibm
float
signbit

configure.ac:

Makefile.am:
TESTS += test-roundl-ieee
check_PROGRAMS += test-roundl-ieee
test_roundl_ieee_LDADD = $(LDADD) @ROUNDL_LIBM@