tree a90b01f4be059fc1393d469454a1907dc89747a7
parent febe99558e50935e6c9f3010ee34425bac4802f8
author Cherry Zhang <cherryyz@google.com> 1563411830 -0400
committer Cherry Zhang <cherryyz@google.com> 1563544633 +0000

cmake: pass -DPIC for building libgmp etc.

To really build libgmp, etc. as position independent, passing
-fPIC is not enough, and we need to pass -DPIC as well.

It was ok without this when linking with gold. But it fails to
link with LLD.

Change-Id: Iaa8173f06c39ab377b42988c65014fa4f172c96f
Reviewed-on: https://go-review.googlesource.com/c/gollvm/+/186837
Reviewed-by: Than McIntosh <thanm@google.com>