After upgrading GCC to 5.4.0 (from 4.9.3) I can no longer compile my sketches.
At the end of the compile phase a get the following linker error: avr-gcc -Os -Wl,--gc-sections -mmcu=atmega32u4 -o /tmp/build881550966608502477.tmp/Blinky.cpp.elf /tmp/build881550966608502477.tmp/Blinky.cpp.o /tmp/build881550966608502477.tmp/FastLED313/hsv2rgb.cpp.o /tmp/build881550966608502477.tmp/FastLED313/wiring.cpp.o /tmp/build881550966608502477.tmp/FastLED313/colorutils.cpp.o /tmp/build881550966608502477.tmp/FastLED313/colorpalettes.cpp.o /tmp/build881550966608502477.tmp/FastLED313/lib8tion.cpp.o /tmp/build881550966608502477.tmp/FastLED313/FastLED.cpp.o /tmp/build881550966608502477.tmp/FastLED313/bitswap.cpp.o /tmp/build881550966608502477.tmp/FastLED313/power_mgt.cpp.o /tmp/build881550966608502477.tmp/FastLED313/noise.cpp.o /tmp/build881550966608502477.tmp/core.a -L/tmp/build881550966608502477.tmp -lm /usr/libexec/gcc/avr/ld: cannot find crtatmega32u4.o: No such file or directory /usr/libexec/gcc/avr/ld: cannot find -latmega32u4 collect2: error: ld returned 1 exit status And sure enough, there is not "crtatmega32u4.o" on this system (and only one file with "atmega32u4" in the filename: /usr/lib64/gcc/avr/5.4.0/device-specs/specs-atmega32u4). I have tried to reinstall the avr-crossdev-toolchain: crossdev -C avr USE="-openmp -hardened -sanitize -vtv" crossdev -s4 -S --target avr ln -s /usr/lib64/binutils/avr/2.26.1/ldscripts /usr/avr/lib/ldscript And just to be sure I have also re-emerged: dev-embedded/avrdude dev-embedded/arduino Any suggestions what I am missing? -- D/\N *************************************************** This message is printed on 100% recycled electrons! ***************************************************
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