make monitor.out make[1]: illegal argument to -j -- must be positive integer! gmake: *** [Makefile:76: monitor.sys] Error 1 gmake: *** Waiting for unfinished jobs.... I'm going to guess it fails because it calls 'make' instead of $(MAKE), and it isn't happy with MAKEFLAGS passed down from gmake.
Created attachment 523012 [details] sys-devel:dev86-0.16.21-r2:20180308-181221.log
Created attachment 523014 [details] e-info.txt
Ah, patch is in https://github.com/lkundrak/dev86/pull/17 , feel free to commit directly if you can... this is orphan, hence, you can go ahead simply ;)
[master 6a07472f5b74] sys-devel/dev86: Fix make call (#649940), strip properly (#651462) 2 files changed, 160 insertions(+) create mode 100644 sys-devel/dev86/dev86-0.16.21-r3.ebuild create mode 100644 sys-devel/dev86/files/dev86-0.16.21-make.patch