I want to use the newest version of avr-gcc (8.1.0) for a new project, which is not available from ubuntu's package-manager. So I compiled it myself using the build-script from this site: https://gist.github.com/zkemble/edec6914ba719bf339b1b85c1fa792dc
(I'm working under Ubuntu 16.04, so I set BUILD_WIN32=0 and BUILD_WIN64=0 to just build the linux-version)
After the compilation completed sucessfully I tried to make it available for use by manually copying the output files and directorys as following: (replacing the preexisting files when named identically)
./linux/bin/*to/usr/bin/./linux/lib/gcc/avr/8.10tousr/lib/gcc/avr/./linux/share/man/*to/usr/share/man/./linux/libexecto/usr/./libc/avr/*to/usr/lib/avr/./libc/avr/include/*to/usr/lib/gcc/include/
It was kind of trial and error, maybe some of the path are wrong, but it seemed reasonable when comparing to the old files from the old gcc-installation. avr-g++ -v gives me the correct version "gcc version 8.1.0 (GCC)".
(I use eclipse oxygen as the IDE, so the following commands are autogenerated, please excuse the bloated command) - When compiling my project using
avr-g++ -v -I"/media/Data/Eigene_Dateien/Valentins_Dateien/Projekte/Software/ATmighty/src/ATmighty"
-Wall -g2 -gstabs -Os -ffunction-sections -fdata-sections -fno-exceptions
-std=c++11 -mmcu=atmega2560 -DF_CPU=16000000UL -MMD -MP -MF"main.d" -MT"main.o"
-c -o "main.o" "/media/Data/Eigene_Dateien/Valentins_Dateien/Projekte/Software/ATmighty/src/QuickTests/main.cpp"
I get the following error: as: Unknown option: »-mmcu=avr6«. (See below for full verbose output).
It seems that the new avr-g++ compiler doesn't use the correct avr-as file and uses the hosts default as assembler instead. But avr-as lies in \usr\bin\, the same folder where as is located.
How can I set up the avr-g++ 8.1.0-toolchain to work correctly? I actually want to try out some of the new avr-g++ features and the default version from the official repository is really old (some 4.x version)
Full avr-g++ output:
Using built-in specs.
Reading specs from /usr/bin/../lib/gcc/avr/8.1.0/device-specs/specs-atmega2560
COLLECT_GCC=avr-g++
Target: avr
Configured with: ../configure --prefix=/home/valentin/Schreibtisch/avr-gcc-8.x/linux --target=avr --enable-languages=c,c++ --disable-nls --disable-libssp --disable-libada --with-dwarf2 --disable-shared --enable-static
Thread model: single
gcc version 8.1.0 (GCC)
COLLECT_GCC_OPTIONS='-I' '/media/Data/Eigene_Dateien/Valentins_Dateien/Projekte/Software/ATmighty/src/ATmighty' '-Wall' '-g2' '-gstabs' '-Os' '-ffunction-sections' '-fdata-sections' '-fno-exceptions' '-std=c++11' '-D' 'F_CPU=16000000UL' '-MMD' '-MP' '-MF' 'main.d' '-MT' 'main.o' '-c' '-o' 'main.o' '-v' '-specs=device-specs/specs-atmega2560' '-mmcu=avr6'
/usr/bin/../libexec/gcc/avr/8.1.0/cc1plus -quiet -v -I /media/Data/Eigene_Dateien/Valentins_Dateien/Projekte/Software/ATmighty/src/ATmighty -imultilib avr6 -iprefix /usr/bin/../lib/gcc/avr/8.1.0/ -MMD main.d -MF main.d -MP -MT main.o -iplugindir=/usr/bin/../lib/gcc/avr/8.1.0/plugin -D__AVR_ATmega2560__ -D__AVR_DEVICE_NAME__=atmega2560 -D F_CPU=16000000UL /media/Data/Eigene_Dateien/Valentins_Dateien/Projekte/Software/ATmighty/src/QuickTests/main.cpp -iplugindir=/usr/bin/../lib/gcc/avr/8.1.0/plugin -mn-flash=4 -mno-skip-bug -quiet -dumpbase main.cpp -mmcu=avr6 -auxbase-strip main.o -g2 -gstabs -Os -Wall -std=c++11 -version -ffunction-sections -fdata-sections -fno-exceptions -mn-flash=4 -mno-skip-bug -fno-rtti -fno-enforce-eh-specs -fno-exceptions -o /tmp/ccLavHFh.s
GNU C++11 (GCC) version 8.1.0 (avr)
compiled by GNU C version 5.4.0 20160609, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.3, isl version isl-0.18-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Versions of loaded plugins:
avr-flash-vtbl: Unknown version.
ignoring nonexistent directory "/usr/bin/../lib/gcc/avr/8.1.0/../../../../avr/include/c++/8.1.0"
ignoring nonexistent directory "/usr/bin/../lib/gcc/avr/8.1.0/../../../../avr/include/c++/8.1.0/avr/avr6"
ignoring nonexistent directory "/usr/bin/../lib/gcc/avr/8.1.0/../../../../avr/include/c++/8.1.0/backward"
ignoring nonexistent directory "/usr/bin/../lib/gcc/avr/8.1.0/../../../../avr/sys-include"
ignoring nonexistent directory "/usr/bin/../lib/gcc/avr/8.1.0/../../../../avr/include"
ignoring nonexistent directory "/usr/bin/../lib/gcc/../../lib/gcc/avr/8.1.0/../../../../avr/include/c++/8.1.0"
ignoring nonexistent directory "/usr/bin/../lib/gcc/../../lib/gcc/avr/8.1.0/../../../../avr/include/c++/8.1.0/avr/avr6"
ignoring nonexistent directory "/usr/bin/../lib/gcc/../../lib/gcc/avr/8.1.0/../../../../avr/include/c++/8.1.0/backward"
ignoring duplicate directory "/usr/bin/../lib/gcc/../../lib/gcc/avr/8.1.0/include"
ignoring duplicate directory "/usr/bin/../lib/gcc/../../lib/gcc/avr/8.1.0/include-fixed"
ignoring nonexistent directory "/usr/bin/../lib/gcc/../../lib/gcc/avr/8.1.0/../../../../avr/sys-include"
ignoring nonexistent directory "/usr/bin/../lib/gcc/../../lib/gcc/avr/8.1.0/../../../../avr/include"
#include "..." search starts here:
#include <...> search starts here:
/media/Data/Eigene_Dateien/Valentins_Dateien/Projekte/Software/ATmighty/src/ATmighty
/usr/bin/../lib/gcc/avr/8.1.0/include
/usr/bin/../lib/gcc/avr/8.1.0/include-fixed
End of search list.
GNU C++11 (GCC) version 8.1.0 (avr)
compiled by GNU C version 5.4.0 20160609, GMP version 6.1.0, MPFR version 3.1.4, MPC version 1.0.3, isl version isl-0.18-GMP
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Versions of loaded plugins:
avr-flash-vtbl: Unknown version.
Compiler executable checksum: 7b8fe0c14755945b805e4422187df660
COLLECT_GCC_OPTIONS='-I' '/media/Data/Eigene_Dateien/Valentins_Dateien/Projekte/Software/ATmighty/src/ATmighty' '-Wall' '-g2' '-gstabs' '-Os' '-ffunction-sections' '-fdata-sections' '-fno-exceptions' '-std=c++11' '-D' 'F_CPU=16000000UL' '-MMD' '-MP' '-MF' 'main.d' '-MT' 'main.o' '-c' '-o' 'main.o' '-v' '-specs=device-specs/specs-atmega2560' '-mmcu=avr6'
as -mmcu=avr6 -mgcc-isr -mno-skip-bug -o main.o /tmp/ccLavHFh.s
as: Unbekannte Option »-mmcu=avr6«
