_GL_WARN_REAL_FLOATING_IMPL 2445 maint/gnulib/lib/math.in.h #  define isfinite(x) _GL_WARN_REAL_FLOATING_IMPL (isfinite, x)
_GL_WARN_REAL_FLOATING_IMPL 2479 maint/gnulib/lib/math.in.h #  define isinf(x) _GL_WARN_REAL_FLOATING_IMPL (isinf, x)
_GL_WARN_REAL_FLOATING_IMPL 2611 maint/gnulib/lib/math.in.h #  define isnan(x) _GL_WARN_REAL_FLOATING_IMPL (isnan, x)
_GL_WARN_REAL_FLOATING_IMPL 2689 maint/gnulib/lib/math.in.h #  define signbit(x) _GL_WARN_REAL_FLOATING_IMPL (signbit, x)