Comment 8 for bug 1024325

AFAIU the location of the locale files depends on prefix used for configure on linux/osx, and might be a relative path if packaged (osxapp). The current workaround for win32 will likely fail for the portable version and for users who didn't installed Inkscape into the default location.

Could 'PACKAGE_LOCALE_DIR' (defined via configure.ac) or 'INKSCAPE_LOCALE' be added to 'set_extensions_env()' in 'src/main.cpp' (similar to PYTHONPATH), so that the externally spawned python script 'inkex.py' does inherit an environment variable containing the path to the currently configured locale dir?