Crossdev & Arduino - could not run/locate 'avr-gcc-ar'

[g4s8]

Hi there!
I've insalled avr toolchain via crossdev:

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USE="-openmp -hardened -sanitize -vtv" crossdev -s4 --stable --portage --verbose --target avr

(I used this use-flags because without it avr-g++ is missed: https://bugs.gentoo.org/340042)
and arduino studio.
When I try to compile any arduino sketch, it fails with error:

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/usr/share/arduino/arduino-builder -dump-prefs -logger=machine -hardware /usr/share/arduino/hardware -tools /usr/share/arduino/hardware/tools/avr -built-in-libraries /usr/share/arduino/libraries -libraries /home/g4s8/Arduino/libraries -fqbn=arduino:avr:nano:cpu=atmega328 -ide-version=10805 -build-path /tmp/arduino_build_191139 -warnings=none -build-cache /tmp/arduino_cache_150838 -prefs=build.warn_data_percentage=75 -verbose /usr/share/arduino/examples/02.Digital/Button/Button.ino
/usr/share/arduino/arduino-builder -compile -logger=machine -hardware /usr/share/arduino/hardware -tools /usr/share/arduino/hardware/tools/avr -built-in-libraries /usr/share/arduino/libraries -libraries /home/g4s8/Arduino/libraries -fqbn=arduino:avr:nano:cpu=atmega328 -ide-version=10805 -build-path /tmp/arduino_build_191139 -warnings=none -build-cache /tmp/arduino_cache_150838 -prefs=build.warn_data_percentage=75 -verbose /usr/share/arduino/examples/02.Digital/Button/Button.ino
Using board 'nano' from platform in folder: /usr/share/arduino/hardware/arduino/avr
Using core 'arduino' from platform in folder: /usr/share/arduino/hardware/arduino/avr
Detecting libraries used...
"/usr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics  -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10805 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR   "-I/usr/share/arduino/hardware/arduino/avr/cores/arduino" "-I/usr/share/arduino/hardware/arduino/avr/variants/eightanaloginputs" "/tmp/arduino_build_191139/sketch/Button.ino.cpp" -o "/dev/null"
Generating function prototypes...
"/usr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics  -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10805 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR   "-I/usr/share/arduino/hardware/arduino/avr/cores/arduino" "-I/usr/share/arduino/hardware/arduino/avr/variants/eightanaloginputs" "/tmp/arduino_build_191139/sketch/Button.ino.cpp" -o "/tmp/arduino_build_191139/preproc/ctags_target_for_gcc_minus_e.cpp"
"/usr/bin/arduino-ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "/tmp/arduino_build_191139/preproc/ctags_target_for_gcc_minus_e.cpp"
Compiling sketch...
"/usr/bin/avr-g++" -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10805 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR   "-I/usr/share/arduino/hardware/arduino/avr/cores/arduino" "-I/usr/share/arduino/hardware/arduino/avr/variants/eightanaloginputs" "/tmp/arduino_build_191139/sketch/Button.ino.cpp" -o "/tmp/arduino_build_191139/sketch/Button.ino.cpp.o"
Compiling libraries...
Compiling core...
Using previously compiled file: /tmp/arduino_build_191139/core/wiring_pulse.S.o
Using previously compiled file: /tmp/arduino_build_191139/core/WInterrupts.c.o
Using previously compiled file: /tmp/arduino_build_191139/core/hooks.c.o
Using previously compiled file: /tmp/arduino_build_191139/core/wiring.c.o
Using previously compiled file: /tmp/arduino_build_191139/core/wiring_analog.c.o
Using previously compiled file: /tmp/arduino_build_191139/core/wiring_digital.c.o
Using previously compiled file: /tmp/arduino_build_191139/core/wiring_pulse.c.o
Using previously compiled file: /tmp/arduino_build_191139/core/wiring_shift.c.o
Using previously compiled file: /tmp/arduino_build_191139/core/CDC.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/HardwareSerial.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/HardwareSerial0.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/HardwareSerial1.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/HardwareSerial2.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/HardwareSerial3.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/IPAddress.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/PluggableUSB.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/Print.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/Stream.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/Tone.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/USBCore.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/WMath.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/WString.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/abi.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/main.cpp.o
Using previously compiled file: /tmp/arduino_build_191139/core/new.cpp.o
"/usr/bin/avr-gcc-ar" rcs  "/tmp/arduino_build_191139/core/core.a" "/tmp/arduino_build_191139/core/wiring_pulse.S.o"
gcc-config: error: could not run/locate 'avr-gcc-ar'
exit status 1
Error compiling for board Arduino Nano.

Does anybody know this issue?
My gcc-config is

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 [1] avr-6.4.0 *

 [2] x86_64-pc-linux-gnu-6.4.0 *

[/topic]

[bunder]

does a simple...

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crossdev -S -t avr

... work? that's what I used on my laptop recently, seems to be fine.

[g4s8]

does a simple... crossdev -S -t avr work?

No, it doesn't install avr-g++ as in this bug: https://bugs.gentoo.org/340042
So I added these use-flags ("-openmp -hardened -sanitize -vtv") as a workaround to get working avr-g++

[g4s8]

It was fixed after full reinstall:

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crossdef -C avr
USE="-openmp -hardened -sanitize -vtv" crossdev -s4 --stable --portage --verbose --target avr

[Matje]

I was bitten by the same issue, could not get it to work but found out that avr-gcc-ar was actually being built correctly. The culprit was stable gcc-config which is not creating the proper wrappers. I updated to gcc-config-2.0 and now it works.