Created attachment 523490 [details] sys-devel:gettext-0.19.8.1:20180311-133218.log sys-devel/gettext-0.19.8.1 is referencing log10, which is included in libm This library is not passed to the linker, so it will fail. Adding "-lm" to LDFLAGS fixes the issue, both on arm and amd64
Created attachment 523492 [details] /etc/portage/env/gettext.conf putting sys-devel/gettext gettext.conf in /etc/portage/package.env fixes the issue.
Created attachment 523494 [details] build log of successful merge when creating the environment with attachment#523492 [details] it works.
solution found here: https://stackoverflow.com/questions/31403210/undefined-reference-to-log10-function
Weirdly enough, without any special treatment it works now.... no references to gettext in any package.env file, just works (tm) Sorry for the single-case-fuss!