log file for the spring rts engine
Usually in MyDocuments\My Games\Spring\infolog.txt or next to spring.exe when installed in portable mode.
can be found in ~/.config/spring/infolog.txt
paste.springfiles.com is a good site.
incomplete or empty logfile?
In some cases the file is sometimes incomplete or empty. To get a complete log you can try to direct stdout to a file:
On a Mac:
./spring &> infolog_full.txt
spring.exe > infolog_full.txt
In settings, set LogFlushLevel=0