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 244065 [details]
Created attachment 244135 [details, diff]
Patch to ebuild to respect CC, CFLAGS, LDFLAGS
This patch adds a src_prepare to change the hardcoded /usr/bin/gcc to $(tc-getCC) and insert a reference to $(CFLAGS). Also, the link lines are adjusted to respect $(LDFLAGS).
Thanks, Kevin! Applied in x11-plugins/gkrelltop-2.2.11-r1