Follow-up Comment #26, patch #9543 (project avr-libc): Great work all. As I am not so knowlegable@Linux, it took me a while to get that running, lots of compile problems, try and error, so I wanted to share what finally worked for me.
# Other than in the manual below, I did install everything into the default path. No PREFIX, as prefixing did not work on my environment. # https://www.nongnu.org/avr-libc/user-manual/install_tools.html#install_avr_gcc # The following process did work for me. cat /proc/version #Linux version 5.4.0-52-generic (buildd@lgw01-amd64-060) (gcc version 9.3.0 (Ubuntu 9.3.0-17ubuntu1~20.04)) sudo apt remove gcc-avr binutils-avr avr-libc # Important: close teminal and reopen to remove cached links to the binaries #set up directory mkdir ~/libc-compile cd ~/libc-compile # #compile and install binutils # wget ftp://sourceware.org/pub/binutils/snapshots/binutils-2.34.90.tar.xz tar -xf binutils-2.34.90.tar.xz cd binutils-2.34.90 mkdir obj-avr cd obj-avr ../configure --target=avr --disable-nls make sudo make install #check version avr-ld --version # #compile and install GCC, this takes a wile, have lunch... # cd ~/libc-compile git clone -b releases/gcc-10.1.0 --single-branch git://gcc.gnu.org/git/gcc.git ./contrib/download_prerequisites cd gcc mkdir obj-avr cd obj-avr ../configure --target=avr --enable-languages=c,c++ --disable-nls --disable-libssp --with-dwarf2 make sudo make install #check version avr-gcc --version # #patch, compile and install avr-libc # cd ~/libc-compile svn co svn://svn.savannah.nongnu.org/avr-libc/trunk cd trunk/avr-libc/ wget -O - -q https://savannah.nongnu.org/patch/download.php?file_id=48974 >> avrxmega3-v10.diff.xz xz --decompress avrxmega3-v10.diff.xz patch -p0 < avrxmega3-v10.diff ./bootstrap ./configure --build=`./config.guess` --host=avr make sudo make install ################################### #now test if it compiles ################################### mkdir ~/libc-compile/test-program cd ~/libc-compile/test-program echo "#define __AVR_ATtiny1604__ #include <avr/io.h> int main(void) { while (1); }" >> main.c avr-gcc -std=c99 -Wall -g -Os -mmcu=avrxmega3 -DF_CPU=1200000 -I. -o main.bin main.c avr-objcopy -j .text -j .data -O ihex main.bin main.hex _______________________________________________________ Reply to this item at: <https://savannah.nongnu.org/patch/?9543> _______________________________________________ Message sent via Savannah https://savannah.nongnu.org/