Can't `make`

[shgubar]

Hello

Can you help me with compiling and install?

My system: Bookworm arm64

When start to compile I get this output:

root # make
gprbuild -p -P mosquitto.gpr
mosquitto.gpr:1:06: imported project file "config/mosquitto_config.gpr" not found
mosquitto.gpr:10:34: unknown package or project "Mosquitto_Config"
mosquitto.gpr:32:13: unknown package or project "Mosquitto_Config"
gprbuild: "mosquitto.gpr" processing failed
make: *** [Makefile:25: compile] Error 5

What am I doing wrong?
Please help.