graphics/MesaLib build failure with gcc 4.9.2 on Solaris 10 sparc

[Ibraheem Saleh <shadowhawk100%gmail.com@localhost>]

Hi,

I'm trying to build pkgsrc MesaLib with external gcc 4.9.2 on Solaris
10 and am stopping with the following error:

Making all in .
gmake[4]: Entering directory
`/usr/pkgsrc/graphics/MesaLib/work/mesa-10.5.3/src/mesa'
  CC       main/accum.lo
  ...
  CC       state_tracker/st_atom_array.lo
In file included from state_tracker/st_atom_array.c:46:0:
../../src/gallium/auxiliary/util/u_math.h: In function 'u_bit_scan64':
../../src/gallium/auxiliary/util/u_math.h:594:4: error: implicit
declaration of function 'ffsll'
[-Werror=implicit-function-declaration]
    int i = ffsll(*mask) - 1;
    ^
cc1: some warnings being treated as errors
gmake[4]: *** [state_tracker/st_atom_array.lo] Error 1
gmake[4]: Leaving directory
`/usr/pkgsrc/graphics/MesaLib/work/mesa-10.5.3/src/mesa'
gmake[3]: *** [all-recursive] Error 1

Anyone know how to get past this?

Thanks!