diff --git a/testing/libSM/build b/testing/libSM/build
new file mode 100755
index 00000000..6daf22f8
--- /dev/null
+++ b/testing/libSM/build
@@ -0,0 +1,7 @@
+#!/bin/sh -e
+
+./configure \
+    --prefix=/usr
+
+make
+make DESTDIR="$1" install
diff --git a/testing/libSM/checksums b/testing/libSM/checksums
new file mode 100644
index 00000000..67486e6e
--- /dev/null
+++ b/testing/libSM/checksums
@@ -0,0 +1 @@
+2d264499dcb05f56438dee12a1b4b71d76736ce7ba7aa6efbf15ebb113769cbb  libSM-1.2.3.tar.bz2
diff --git a/testing/libSM/depends b/testing/libSM/depends
new file mode 100644
index 00000000..faa771bd
--- /dev/null
+++ b/testing/libSM/depends
@@ -0,0 +1,3 @@
+util-linux
+libICE
+pkgconf make
diff --git a/testing/libSM/sources b/testing/libSM/sources
new file mode 100644
index 00000000..af2ece39
--- /dev/null
+++ b/testing/libSM/sources
@@ -0,0 +1 @@
+https://www.x.org/releases/individual/lib/libSM-1.2.3.tar.bz2
diff --git a/testing/libSM/version b/testing/libSM/version
new file mode 100644
index 00000000..883a7ecf
--- /dev/null
+++ b/testing/libSM/version
@@ -0,0 +1 @@
+1.2.3 1