--- a/debian/patches/reproducible-build.patch	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/reproducible-build.patch	2020-04-13 10:40:21.112307341 +0100
@@ -0,0 +1,15 @@
+Description: Make the build reproducible
+Author: Chris Lamb <lamby@debian.org>
+Last-Update: 2020-04-13
+
+--- xxhash-0.7.3.orig/libxxhash.pc.in
++++ xxhash-0.7.3/libxxhash.pc.in
+@@ -1,7 +1,7 @@
+ #   xxHash - Extremely fast hash algorithm
+ #   BSD 2-Clause License (https://www.opensource.org/licenses/bsd-license.php)
+ 
+-prefix=@PREFIX@
++prefix=/usr
+ exec_prefix=${prefix}
+ includedir=${prefix}/include
+ libdir=${exec_prefix}/lib
--- a/debian/patches/series	1970-01-01 01:00:00.000000000 +0100
--- b/debian/patches/series	2020-04-13 10:40:20.056300166 +0100
@@ -0,0 +1 @@
+reproducible-build.patch