easylogging: show the 'no stack trace' warning only once

If execinfo.h is not available, output the stack trace warning only once, so we don't spam the build logs with it.
This commit is contained in:
ston1th 2017-12-09 10:01:31 +01:00
parent 782a84f7b4
commit 5cc8469332
2 changed files with 9 additions and 7 deletions