cross-avr/gcc is needed for Arduino IDE. Instructions say to run "crossdev -s4 avr" to generate the cross-compiler. That command does not generate and install a "avr-g++" binary anywhere. It's not found in "equery f cross-avr/gcc" list of installed files. Arduino IDE error: "fork/exec /bin/avr-g++: no such file or directory". Reproducible: Always Steps to Reproduce: crossdev -s4 -t avr equery f cross-avr/gcc | grep "avr-g++" Actual Results: There is no avr-g++ installed. Expected Results: /usr/bin/avr-g++
> Instructions say to run "crossdev -s4 avr" to generate the cross-compiler. What instructions?
https://github.com/gentoo/gentoo/blob/master/dev-embedded/arduino/arduino-1.8.19-r1.ebuild line 120.
in general, crossdev (for no good reason) avoids building C++ stuff for stage 1 compilers. this /could/ make sense if the final target is an s3 target (saves some build time) but is nonsense if the final target is also s1 since that means language support is missing. it is also possible to build libstdc++ on a target that is --without-headers.. which IIRC isn't very convenient with crossdev right now.
The bug has been referenced in the following commit(s): https://gitweb.gentoo.org/proj/crossdev.git/commit/?id=0261fe00ae660641f280144000c7b191e01936c1 commit 0261fe00ae660641f280144000c7b191e01936c1 Author: Sam James <sam@gentoo.org> AuthorDate: 2025-01-02 23:25:18 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2025-01-02 23:26:45 +0000 crossdev: build C++ by default for *-newlib/*-elf/*-avr etc These days, tutorials and classes expect a C++ compiler for arm-none-eabi and friends and it often confuses users. Stop overriding the crossdev default (which is -s4) for these targets accordingly. Bug: https://bugs.gentoo.org/900713 Bug: https://bugs.gentoo.org/939677 Signed-off-by: Sam James <sam@gentoo.org> crossdev | 2 -- 1 file changed, 2 deletions(-)
crossdev-99999999 should work now. Testing would be appreciated!
The bug has been closed via the following commit(s): https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=2a7e458463a0bdaa179f1405048984b5198c79f9 commit 2a7e458463a0bdaa179f1405048984b5198c79f9 Author: Sam James <sam@gentoo.org> AuthorDate: 2025-01-06 01:59:55 +0000 Commit: Sam James <sam@gentoo.org> CommitDate: 2025-01-06 01:59:55 +0000 sys-devel/crossdev: add 20250106 Sam James (26): crossdev, Makefile: fix version handling again Revert "crossdev, Makefile: fix version handling again" crossdev: nvptx: force on openmp & fortran Revert "crossdev: nvptx: force on openmp & fortran" crossdev: nvptx: add comment wrt GFORCE and openmp/fortran crossdev: drop 'nocxx' (noop) crossdev: small style tweaks crossdev: crank copyright crossdev: build C++ by default for *-newlib/*-elf/*-avr etc ci: fix whitespace ci: add embedded/special targets (arm-none-eabi, nvptx-none) ci: add avr too ci: fix loong and uncomment ci: fix comment typo ci: add HPPA targets ci: don't run loong musl ci: no userland for hppa64 ci: add bpf-unknown-none ci: add s390-ibm-linux-gnu ci: adjust s390x tuple name ci: add alpha-unknown-linux-gnu ci: add powerpc64le-unknown-linux-gnu ci: add more arm targets ci: add aarch64_be-unknown-linux-gnu ci: try to get binpkgs for dev-vcs/git and friends (via eselect-repository) crossdev: special-case bpf Closes: https://bugs.gentoo.org/900713 Closes: https://bugs.gentoo.org/939677 Signed-off-by: Sam James <sam@gentoo.org> sys-devel/crossdev/Manifest | 1 + sys-devel/crossdev/crossdev-20250106.ebuild | 40 +++++++++++++++++++++++++++++ 2 files changed, 41 insertions(+)
Tested crossdev-99999999. Works. Thank you!
Thank you!
