Index: build/tcl/Makefile
==================================================================
--- build/tcl/Makefile
+++ build/tcl/Makefile
@@ -1,12 +1,16 @@
 all: ssh-agent-noasync.js
 
 ssh-agent-noasync.js: ../chrome/ssh-agent.js
-	cc -Dawait='' -Dasync='' -nostdinc -C -E -x c ../chrome/ssh-agent.js -o - | grep -v '^# ' > ssh-agent-noasync.js.new
+	$(CC) -Dawait='' -Dasync='' -nostdinc -C -E -x c ../chrome/ssh-agent.js -o - | grep -v '^# ' > ssh-agent-noasync.js.new
 	mv ssh-agent-noasync.js.new ssh-agent-noasync.js
 
+softokn3-pkcs11.so: softokn3-pkcs11.c
+	$(CC) -fPIC -Wall -shared -o softokn3-pkcs11.so softokn3-pkcs11.c
+
 clean:
 	rm -f ssh-agent-noasync.js.new ssh-agent-noasync.js
+	rm -f softokn3-pkcs11.so
 
 distclean: clean
 
 .PHONY: all clean distclean

ADDED   build/tcl/softokn3-pkcs11.c
Index: build/tcl/softokn3-pkcs11.c
==================================================================
--- /dev/null
+++ build/tcl/softokn3-pkcs11.c
@@ -0,0 +1,139 @@
+#include <unistd.h>
+#include <stdlib.h>
+#include <string.h>
+#include <dlfcn.h>
+
+#include <stdio.h>
+
+/*
+ * Create minimal PKCS#11 module interface needed to wrap
+ */
+#define CK_DEFINE_FUNCTION(type, func) type func
+
+#define CKR_GENERAL_ERROR 0x00000005
+#define CKR_OK            0x00000000
+
+typedef void (*CK_CREATEMUTEX)();
+typedef void (*CK_DESTROYMUTEX)();
+typedef void (*CK_LOCKMUTEX)();
+typedef void (*CK_UNLOCKMUTEX)();
+typedef unsigned long CK_FLAGS;
+typedef unsigned long CK_RV;
+typedef void * CK_VOID_PTR;
+
+typedef struct CK_C_INITIALIZE_ARGS {
+	CK_CREATEMUTEX CreateMutex;
+	CK_DESTROYMUTEX DestroyMutex;
+	CK_LOCKMUTEX LockMutex;
+	CK_UNLOCKMUTEX UnlockMutex;
+	CK_FLAGS flags;
+	CK_VOID_PTR pReserved;
+} CK_C_INITIALIZE_ARGS;
+
+typedef struct {
+	unsigned char major;
+	unsigned char minor;
+} CK_VERSION;
+
+typedef struct {
+	CK_VERSION version;
+	CK_RV (*C_Initialize)(CK_VOID_PTR);
+	CK_RV (*C_Finalize)(CK_VOID_PTR);
+} CK_FUNCTION_LIST;
+
+typedef CK_FUNCTION_LIST* CK_FUNCTION_LIST_PTR;
+typedef CK_FUNCTION_LIST** CK_FUNCTION_LIST_PTR_PTR;
+
+/*
+ * This is the size of the full PKCS#11 function list structure
+ * (CK_FUNCTION_LIST).  We only actually care about wrapping the
+ * initialization function, so we have to compute the full size
+ *
+ * Size is sizeOf(ourFunctionListStruct) + (numberOfFunctions-2 * functionPointerSize)
+ */
+#define SIZE_OF_PKCS11_FUNCTION_LIST (sizeof(CK_FUNCTION_LIST) + (67 * sizeof(void *)))
+
+/*
+ * Real C_Initialize() function for this module
+ */
+static CK_RV (*Real_C_Initialize)(CK_VOID_PTR) = NULL;
+
+static CK_DEFINE_FUNCTION(CK_RV, Proxy_C_Initialize)(CK_VOID_PTR pInitArgs) {
+	char nssConfig[1024];
+	char *nssDBDir = NULL;
+	CK_C_INITIALIZE_ARGS *InitArgs = NULL;
+
+	InitArgs = pInitArgs;
+
+	if (InitArgs == NULL) {
+		InitArgs = malloc(sizeof(*InitArgs));
+
+		InitArgs->CreateMutex = NULL;
+		InitArgs->DestroyMutex = NULL;
+		InitArgs->LockMutex = NULL;
+		InitArgs->UnlockMutex = NULL;
+		InitArgs->flags = 0;
+		InitArgs->pReserved = NULL;
+	}
+
+	if (InitArgs->pReserved == NULL) {
+		nssDBDir = getenv("SOFTOKN3_NSS_DIR");
+
+		if (nssDBDir) {
+			snprintf(nssConfig, sizeof(nssConfig),
+			         "configdir='%s' certPrefix='' keyPrefix='' secmod='secmod.db' flags=readOnly",
+				 nssDBDir
+			);
+
+			InitArgs->pReserved = (void *) nssConfig;
+		}
+	}
+
+	if (Real_C_Initialize == NULL) {
+		return(CKR_GENERAL_ERROR);
+	}
+
+	return(Real_C_Initialize(InitArgs));
+}
+
+CK_DEFINE_FUNCTION(CK_RV, C_GetFunctionList)(CK_FUNCTION_LIST_PTR_PTR ppFunctionList) {
+	CK_RV (*Real_C_GetFunctionList)(CK_FUNCTION_LIST_PTR_PTR);
+	CK_FUNCTION_LIST_PTR copyFunctionList;
+	void *handle;
+	CK_RV retval;
+	char *module;
+
+	module = getenv("SOFTOKN3_MODULE");
+	if (!module) {
+		module = "/usr/lib64/libsoftokn3.so";
+	}
+
+	/* handle = dlmopen(LM_ID_NEWLM, module, RTLD_NOW | RTLD_LOCAL); */
+	handle = dlopen(module, RTLD_NOW | RTLD_LOCAL);
+	if (handle == NULL) {
+		fprintf(stderr, "Unable to open \"%s\": %s\n", module, dlerror());
+
+		return(CKR_GENERAL_ERROR);
+	}
+
+	Real_C_GetFunctionList = dlsym(handle, "C_GetFunctionList");
+
+	if (Real_C_GetFunctionList == NULL) {
+		return(CKR_GENERAL_ERROR);
+	}
+
+	retval = Real_C_GetFunctionList(ppFunctionList);
+
+	if (retval != CKR_OK) {
+		return(retval);
+	}
+
+        copyFunctionList = malloc(SIZE_OF_PKCS11_FUNCTION_LIST);
+        memcpy(copyFunctionList, *ppFunctionList, SIZE_OF_PKCS11_FUNCTION_LIST);
+        *ppFunctionList = copyFunctionList;
+
+	Real_C_Initialize = (*ppFunctionList)->C_Initialize;
+	(*ppFunctionList)->C_Initialize = Proxy_C_Initialize;
+
+	return(retval);
+}