diff --git a/repoint-lock.json b/repoint-lock.json
index 64eec6b..d1b70f2 100644
--- a/repoint-lock.json
+++ b/repoint-lock.json
@@ -1,7 +1,7 @@
 {
   "libraries": {
     "sml-buildscripts": {
-      "pin": "24b96d520a2d"
+      "pin": "85cd6b632306"
     },
     "sml-csv": {
       "pin": "b4f14f58ca04"
@@ -40,16 +40,16 @@
       "pin": "7b667f4146be"
     },
     "sml-wavefile": {
-      "pin": "e75a70bff2a9"
+      "pin": "d231891c7cb9"
     },
     "sml-fft": {
       "pin": "d686d3c53e30"
     },
     "ext/bqvec": {
-      "pin": "28061e655245"
+      "pin": "13251adcfb3f"
     },
     "ext/bqfft": {
-      "pin": "e8d739f7e80d"
+      "pin": "c8ab2d3d5df2"
     },
     "ext/bqaudiostream": {
       "pin": "530f3ad687a7"
@@ -88,7 +88,7 @@
       "pin": "20f91cbc8003"
     },
     "bsq-waveform": {
-      "pin": "0c0a940a4b9b"
+      "pin": "3e467a8d1e05"
     },
     "bsq-dtw": {
       "pin": "e5fd91afb8b5"
@@ -99,6 +99,9 @@
     "bsq-vamp": {
       "pin": "0990bda9a481"
     },
+    "bsq-windowsshim": {
+      "pin": "dbd25d39f923"
+    },
     "ext/smldoc": {
       "pin": "8b09c0c6045dd68154d8cceff90b9892f207cf64"
     }
diff --git a/repoint-project.json b/repoint-project.json
index 16e4300..d7e7157 100644
--- a/repoint-project.json
+++ b/repoint-project.json
@@ -102,6 +102,9 @@
 	"bsq-vamp": {
 	    "vcs": "hg", "service": "sourcehut", "owner": "cannam"
 	},
+	"bsq-windowsshim": {
+	    "vcs": "hg", "service": "sourcehut", "owner": "cannam"
+	},
         "ext/smldoc": {
             "vcs": "git", "service": "github", "owner": "cannam"
         }
diff --git a/test-sml-windows.mlb b/test-sml-windows.mlb
new file mode 100644
index 0000000..0f05955
--- /dev/null
+++ b/test-sml-windows.mlb
@@ -0,0 +1,3 @@
+(* To permit compiling with Poly/ML on Windows. *)
+bsq-windowsshim/windowsshim.sml
+test-sml.mlb