Build failure (fractal.o linking)

Hello,
I'm getting these errors when trying to build the latest revision:

.objs/Linux-x86_64-x86_64-pc-linux-gnu-gcc/xqe/fractal.o: In function `fractal_set_rotation':
fractal.c:(.text+0xdde): undefined reference to `sincos'
.objs/Linux-x86_64-x86_64-pc-linux-gnu-gcc/xqe/fractal.o: In function `do_fractal_zoom':
fractal.c:(.text+0xe9e): undefined reference to `pow'
.objs/Linux-x86_64-x86_64-pc-linux-gnu-gcc/xqe/fractal.o: In function `fractal_set_parameters':
fractal.c:(.text+0x1da9): undefined reference to `pow'
collect2: error: ld returned 1 exit status
make: *** [Makefile:240: xqe_g] Error 1

Looks like a `-lm` is missing somewhere.