mesa errors out with mathinline.h

[Justin P. Mattock]

I'm getting this with using the latest mesa:

In file included from /usr/include/math.h:416
                           from ../../../src/mesa/main/compiler.:42
                           from ../../../src/mesa/main/dispatch.c:43:
/usr/include/bits/mathinline.h: In function '__signbitf':
/usr/include/bits/mathinline.h:39: error: expected ')' before ':' token
/usr/include/bits/mathinline.h: In function '__signbit':
/usr/include/bits/mathinline.h:46: error: expected ')' before ':' token
make[2]: *** [../../../src/mesa/main/dispatch.o] Error 1

I looked into mathinline.h but am not sure
how to go about satisfying mesa.
(build is x86_64).

Justin P. Mattock