ffat_fs server build in 17.08?

[Bob Stewart]

Hi,
     I migrated to 17.08 from 17.05 this morning. One system I routinely 
build on prior releases fails with the 'server/ffat_fs' does not exist 
error. The prepare_tool was run to get the source, as usual. I've either 
forgotten a step or the current build is broken for users of the old 
ffat_fs server. The complete make output is:

make run/rico_no_usb KERNEL=hw | tee build.log
including /Work/Genode/genode-17.08/tool/run/boot_dir/hw
including /Work/Genode/genode-17.08/tool/run/image/uboot
including /Work/Genode/genode-17.08/repos/os/run/rico_no_usb.run
building targets:  core init server/pin_mux_ctl server/shared_mem 
drivers/platform/spec/437x drivers/platform/spec/437x/client 
drivers/timer drivers/gpio/spec/437x drivers/pwm drivers/i2c 
drivers/uart drivers/sd_card drivers/pruss app/soc_leds server/ffat_fs 
app/motor_control app/ap_cli app/ap_sensors app/autopilot

spawn make core init server/pin_mux_ctl server/shared_mem 
drivers/platform/spec/437x drivers/platform/spec/437x/client 
drivers/timer drivers/gpio/spec/437x drivers/pwm drivers/i2c 
drivers/uart drivers/sd_card drivers/pruss app/soc_leds server/ffat_fs 
app/motor_control app/ap_cli app/ap_sensors app/autopilot
make[1]: Entering directory '/Work/Genode/genode-17.08/build/437x'
Error: target 'server/ffat_fs' does not exist
Makefile:211: recipe for target 'error_missing_targets' failed
make[1]: *** [error_missing_targets] Error 1
make[1]: Leaving directory '/Work/Genode/genode-17.08/build/437x'
Error: Genode build failed
make: *** [run/rico_no_usb] Error 252
Makefile:309: recipe for target 'run/rico_no_usb' failed.

Thanks,

     Bob Stewart