The problem seems to be the ulimit for the stack. If you try to build this package, mor than 3 GB of virtual memory will be consumed by the build-processi before the build aborts. If you increase the default i stack-limit from 8192 (8 MB) to 32768 (32 MB), this problem does not occur. Maybe, we should include a "ulimit -s 32768" in the ebuild file.
Gosh, first time I hear about something like ecls .. maybe check with somebody who actually made or did commits to the ebuild ?
I did not have this problem the first time I built it, but I'll look into it.
ecls has not had any activity for 8 months. The latest vesion 0.5 does not build even with moderate tweaking. I am masking out ecls-0.2 and recommend that people use sbcl or cmucl instead.
Err.. it's not like I fixed it...