From 5a26e0f0d3756cc0c8c11b261e216d0fe09db905 Mon Sep 17 00:00:00 2001
From: gojimmypi <gojimmypi@users.noreply.github.com>
Date: Wed, 4 Mar 2020 13:10:48 -0800
Subject: [PATCH] Update README with TRELLIS_INSTALL_PREFIX example

see https://github.com/YosysHQ/nextpnr/pull/404 and https://github.com/SymbiFlow/prjtrellis/pull/123
---
 README.md | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/README.md b/README.md
index 5eaa3449..d1c176a4 100644
--- a/README.md
+++ b/README.md
@@ -97,7 +97,8 @@ such as pack, place, route, and write output files.)
 ### nextpnr-ecp5
 
 For ECP5 support, you must download [Project Trellis](https://github.com/SymbiFlow/prjtrellis),
-then follow its instructions to download the latest database and build _libtrellis_.
+then follow its instructions to download the latest database and build _libtrellis_. 
+(for example: `-DTRELLIS_INSTALL_PREFIX=/usr` will install to `/usr/share/trellis`) 
 
 ```
 cmake -DARCH=ecp5 -DTRELLIS_INSTALL_PREFIX=/path/to/prjtrellis .