Installation with arduino-cli failed

[ArminJo]

Hi Hans, I maintain a lot of arduino libraries and now got the request to support ATmega8. Therfore I was forced to use your package. For my CI I use a arduino-cli, as for all the other platforms. But I did not work with your package. I run a compile check for an ARmega8 for the IRMP library and I got the error:

 arduino-cli compile --verbose --warnings all --fqbn MiniCore:avr:8:bootloader=uart0,eeprom=keep,BOD=2v7,LTO=Os_flto,clock=16MHz_external  ./examples/SimpleSender
Error: Compile of  SimpleSender  failed
Using board '8' from platform in folder: /github/home/.arduino15/packages/MiniCore/hardware/avr/2.0.7
Using core 'MCUdude_corefiles' from platform in folder: /github/home/.arduino15/packages/MiniCore/hardware/avr/2.0.7
Detecting libraries used...
/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -w -x c++ -E -CC -mmcu=atmega8 -DF_CPU=16000000L -DARDUINO=10607 -DARDUINO_AVR_ATmega8 -DARDUINO_ARCH_AVR -Wextra -flto -g -I/github/home/.arduino15/packages/MiniCore/hardware/avr/2.0.7/cores/MCUdude_corefiles -I/github/home/.arduino15/packages/MiniCore/hardware/avr/2.0.7/variants/standard /tmp/arduino-sketch-91B057542E2706E283497D445053E20E/sketch/SimpleSender.ino.cpp -o /dev/null
Error during build: fork/exec /bin/avr-g++: no such file or directory 

I guess it is because you did not specify tool dependencies for your package in your index.json "toolsDependencies": []

I also maintain a package and I use:

          "toolsDependencies": [
            {
              "packager": "arduino",
              "name": "avr-gcc",
              "version": "7.3.0-atmel3.6.1-arduino5"
            },
            {
              "packager": "digistump",
              "name": "micronucleus",
              "version": "2.0a4"
            }
          ]

With this, everything runs fine with arduino cli as you can see here: I tried to install the arduino package explicitely for your board, but this does not fix the error. Please consider to add dependencies to your json file. Thanks Armin