diff --git a/_constraints b/_constraints
new file mode 100644
index 0000000..4a3809f
--- /dev/null
+++ b/_constraints
@@ -0,0 +1,13 @@
+
+
+
+ ppc64
+ ppc64le
+
+
+
+ 6
+
+
+
+
diff --git a/cmake.changes b/cmake.changes
index dcb9b7d..eb75b2d 100644
--- a/cmake.changes
+++ b/cmake.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Fri Jul 5 11:47:34 UTC 2019 - Michel Normand
+
+- Add _constraints file for PowerPC
+ to specify a minimum build disk size
+
-------------------------------------------------------------------
Tue Jul 2 07:44:21 UTC 2019 - Martin Liška