[PATCH] Fix math transformation on targets without c99 math functions

[Joseph Myers]

On Mon, 28 Dec 2015, John David Anglin wrote:

> The attach change fixes PR middle-end/68743 on hppa*-*-hpux*.  In compiling 
> c99_functions.c in libgfortran, floor ((double)x) was transformed to floorf(x) but
> floorf is not available on hppa*-*-hpux*.  The change simply adds a libc_has_function
> check to prevent the transformation.

These are real functions, not complex.  I think you want to use 
function_c99_misc, not function_c99_complex.

-- 
Joseph S. Myers
joseph@codesourcery.com