tree 2bc90f2d30397098b0fa2e5e72f696afd6b88db4
parent c82996fd68365fb014b70354b9663cf041ec416e
author Tim Edwards <tim@opencircuitdesign.com> 1646098868 -0500
committer Tim Edwards <tim@opencircuitdesign.com> 1646098868 -0500

Corrected the Makefile for sky130, which was unsetting PDKPATH to
prevent issues with existing environment variables, but also needs
to unset PDK_ROOT, or else an existing PDK_ROOT environment
variable will override the setting in magic while it is doing the
build, and screw up the build.