Qmk_firmware: [Bug] Building fails if lang environment variable is not `en_US.UTF-8`

[krautcat]

Describe the Bug

I don't know whether it is documented or not, whether it is bug or not but. QMK building fails if I have LANG environment variable not set to en_US.UTF-8.

System Information

• Keyboard: Iris
  
  
  
  • Revision (if applicable): rev. 2
  
  
• Operating system: Ubuntu 20.04
• AVR GCC version: 5.4.0
  
• ARM GCC version:
  
• QMK Firmware version: 0.9.7
  
• Any keyboard related software installed?
  
  
  
  • [ ] AutoHotKey
  
  
  • [ ] Karabiner
  
  
  • [ ] Other:
  
  

Additional Context

I have LANG envvar setted to ru_RU.UTF-8. When I try to build firmware for Iris with any keymap (even from upstream), build fails on linkage stage saying that .elf file is empty (if I build with dirty .build directory) or buffer overflow detected (clean build). Yes, it is really empty, and linkage than fails. Object files are generated. TBH, I didn't dig into build process of QMK, so I am just assuming error happens on linkage stage. Here is log with VERBOSE=True. It contains messages in Russian but they are not essential.

Log

Linking: .build/keebio_iris_rev2_krautcat.elf                                                       [ERRORS]
 | 
 | collect2: фатальная ошибка: ld завершилась по сигналу 6 [Аварийный останов], core dumped
 | компиляция прервана.
 | *** buffer overflow detected ***: terminated
 | 
make[1]: *** [tmk_core/rules.mk:306: .build/keebio_iris_rev2_krautcat.elf] Ошибка 1
if [ -f .//.build/error_occurred ]; then printf "\033[31;01mMake finished with errors\n\033[0m" & exit 1; fi;

When I try to build with LANG envvar set to en_US.UTF-8, firmware is building, no linkage errors here.

If you don't have any time for investigating the possible bug or it is expected behaviour, please let me know.

[rmwphd]

Does it fail iff LANG is not set to en_US.UTF-8 or does it fail iff LANG is set to ru_RU.UTF-8? Did you try with other encodings?

[krautcat]

I haven't tried any other encodings, or, to be more correct, any other values of this environment variables. Tbh, I set it to the en_US.UTF-8 just to get more meaningful message when linkage fails but apparently this also fixed whole build process.

I will try different locales. Then I will try to unset only LANG envvar without touching the LC_* envvars (they override LANG values for different aspects of localization). Finally, I will try to build with all variables unset.