I have no dtrace in my system I also have systemtap installed, it has a dtrace man page but not the dtrace binary
Created attachment 630896 [details] info emerge --info
Created attachment 630898 [details] glib-2.64.1:20200406-115642.log buildlog
Weird. How can systemtap be installed without installing the dtrace binary?
Could you provide a build log from dev-util/systemtap? There is no way to disable the dtrace script.
See https://bugs.gentoo.org/719438#c2