See attached build log. (Please do not complain about the need for looking at the build log until you can provide an easy way to open bugs with the correct data picked out of a tinderbox log. Thanks.)
Created attachment 252565 [details] Build log
Fix: sed -i -e 's/$(OPTS) $(CFLAGS)/$(CFLAGS) $(LDFLAGS)/' ${PF}/Makefile
Created attachment 341542 [details] autorespond-2.0.5-r1.ebuild I've updated the ebuild based on kensington's fix. Also fixes the direct calling of gcc and updated the ebuild to eapi 5 (please review)
tinderbox has reproduced this issue with version 2.0.5 - Updating summary.