diff --git a/_constraints b/_constraints
new file mode 100644
index 0000000..beee5d7
--- /dev/null
+++ b/_constraints
@@ -0,0 +1,25 @@
+
+
+
+ 4
+
+
+ 4
+
+ 4
+
+
+
+ x86_64
+ ppc64le
+ s390x
+ aarch64
+
+
+
+ 6
+
+ 8
+
+
+
diff --git a/texlive.changes b/texlive.changes
index 6b034bd..929d9d0 100644
--- a/texlive.changes
+++ b/texlive.changes
@@ -1,3 +1,9 @@
+-------------------------------------------------------------------
+Wed Apr 22 09:49:08 UTC 2020 - Dr. Werner Fink
+
+- Add a _constraints file to have a better control how much disk
+ space and power we have to get all binaries build and installed
+
-------------------------------------------------------------------
Wed Apr 22 06:18:45 UTC 2020 - Dr. Werner Fink