* lib/math.in.h (fmal): New declaration.
* lib/fmal.c: New file.
* m4/fmal.m4: New file.
* m4/math_h.m4 (gl_MATH_H): Test whethern fmal is declared.
(gl_MATH_H_DEFAULTS): Initialize GNULIB_FMAL, HAVE_FMAL, REPLACE_FMAL.
* modules/math (Makefile.am): Substitute GNULIB_FMAL, HAVE_FMAL,
REPLACE_FMAL.
* modules/fmal: New file.
* doc/posix-functions/fmal.texi: Mention the new module and the various
bugs.
* m4/printf.m4 (gl_PRINTF_INFINITE_LONG_DOUBLE): Don't guess yes on
NetBSD; the test fails on NetBSD 5.0.
* doc/{glibc,posix,pastposix}-{headers,functions}/*.texi: Update info
about NetBSD.