diff --git a/.gitignore b/.gitignore
index a48b14c..d49e0a8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1 +1,2 @@
 /nextpnr-ed4fc88.tar.gz
+/nextpnr-d27ec2c.tar.gz
diff --git a/nextpnr.spec b/nextpnr.spec
index 2ed8c9a..5995c7e 100644
--- a/nextpnr.spec
+++ b/nextpnr.spec
@@ -1,9 +1,9 @@
-%global commit ed4fc888debb2eb100d1476e92c87c65d72cf545
+%global commit d27ec2cd1554d9f8a3e6e5b81b9bb12cf7aab13b
 %global shortcommit %(c=%{commit}; echo ${c:0:7})
 
 Name:		nextpnr
 Version:	0
-Release:	0.3.20190326git%{shortcommit}%{?dist}
+Release:	0.3.20190401git%{shortcommit}%{?dist}
 Summary:	FPGA place and route tool
 
 License:	ISC and BSD and MIT and (MIT or Public Domain)
@@ -56,7 +56,7 @@ cp 3rdparty/python-console/LICENSE LICENSE-python-console.txt
 %cmake . -DARCH=all \
 	-DICEBOX_ROOT=%{_datadir}/icestorm \
 	-DTRELLIS_ROOT=%{_datadir}/trellis
-make %{?_smp_mflags}
+%make_build
 # prepare examples doc. directory:
 mkdir -p examples/ice40 examples/ecp5
 cp -r ice40/examples/* examples/ice40
@@ -79,7 +79,7 @@ cp ecp5/synth/* examples/ecp5
 
 
 %changelog
-* Tue Mar 26 2019 Gabriel Somlo <gsomlo@gmail.com> - 0-0.3.20190325gited4fc88
+* Mon Apr 01 2019 Gabriel Somlo <gsomlo@gmail.com> - 0-0.3.20190401gitd27ec2c
 - Update to latest dev snapshot containing fast HeAP-based analytical placer
 - Package included ice40, ecp5 example projects as documentation
 
diff --git a/sources b/sources
index 81a7ede..d273ed5 100644
--- a/sources
+++ b/sources
@@ -1 +1 @@
-SHA512 (nextpnr-ed4fc88.tar.gz) = e63832a04f6968915f836b0f62dab498a915e7112109427dc85fa67a33fedc89accc4c50a4895fe5242d8aee21eda500977c59ba14d9060acc3c4b18dc9d816c
+SHA512 (nextpnr-d27ec2c.tar.gz) = 0d3e203e5f3aeb25b1c44b02ae90f0291ca763ad6425bc72ebca38ad57cb0ae7431d0a0683c3325587238b311b2d93afec7cf57c9ed5854a58407d4b8f424d1a