Here is the complete error message:

python -t -O -O main/es_generator.py -S main/APIspec.xml -V GLES1.1 > main/api_exec_es1.c
  File "main/es_generator.py", line 134
    except getopt.GetoptError, message:
                             ^
SyntaxError: invalid syntax
make[2]: *** No rule to make target `main/api_exec_es1.c', needed by `depend'.  Stop.
make[2]: Leaving directory `/home/martin/abs/xorg/mesa-full-gallium/src/mesa-build/src/mesa'
make[1]: *** [subdirs] Error 1
make[1]: Leaving directory `/home/martin/abs/xorg/mesa-full-gallium/src/mesa-build/src'
make: *** [default] Error 1


and these are my autogen.sh settings:
	./autogen.sh --prefix=/usr \
	--with-dri-driverdir=/usr/lib/xorg/modules/dri \
	--with-dri-drivers= \
	--enable-glx-tls \
	--disable-debug  \
	--enable-xcb \
	--enable-gallium-r600 \
	--with-state-trackers=dri,vega