diff --git a/checkin_notes b/checkin_notes
index 732846821f..3a54561028 100644
--- a/checkin_notes
+++ b/checkin_notes
@@ -7725,3 +7725,11 @@ Charlie 14 Dec 2012
     mac_build/
         boinc.xcodeproj/
             project.pbxproj
+
+David  18 Dec 2012
+    - client simulator: fix build errors
+
+    client/
+        app.cpp
+        makefile_sim
+        sim.cpp
diff --git a/client/app.cpp b/client/app.cpp
index 086d581d39..4c71d92416 100644
--- a/client/app.cpp
+++ b/client/app.cpp
@@ -188,6 +188,8 @@ int ACTIVE_TASK::preempt(int preempt_type) {
     return 0;
 }
 
+#ifndef SIM
+
 // called when a process has exited
 //
 void ACTIVE_TASK::cleanup_task() {
@@ -237,7 +239,6 @@ void ACTIVE_TASK::cleanup_task() {
     }
 }
 
-#ifndef SIM
 int ACTIVE_TASK::init(RESULT* rp) {
     result = rp;
     wup = rp->wup;
diff --git a/client/makefile_sim b/client/makefile_sim
index d79471ee4c..6aee9dd07e 100644
--- a/client/makefile_sim
+++ b/client/makefile_sim
@@ -9,6 +9,7 @@ OBJS = \
 	acct_mgr.o \
 	acct_setup.o \
     app.o \
+    app_config.o \
     client_msgs.o \
     client_state.o \
     client_types.o \
@@ -28,6 +29,7 @@ OBJS = \
 	file_xfer.o \
 	gpu_amd.o \
 	gpu_detect.o \
+	gpu_intel.o \
 	gpu_nvidia.o \
 	gpu_opencl.o \
 	gui_http.o \
diff --git a/client/sim.cpp b/client/sim.cpp
index 1997698a2c..60c60e4fe3 100644
--- a/client/sim.cpp
+++ b/client/sim.cpp
@@ -502,7 +502,7 @@ bool CLIENT_STATE::scheduler_rpc_poll() {
 #if 0
         p = next_project_sched_rpc_pending();
         if (p) {
-            work_fetch.compute_work_request(p);
+            work_fetch.piggyback_work_request(p);
             action = simulate_rpc(p);
             break;
         }
@@ -511,7 +511,7 @@ bool CLIENT_STATE::scheduler_rpc_poll() {
         p = find_project_with_overdue_results(false);
         if (p) {
             //printf("doing RPC to %s to report results\n", p->project_name);
-            work_fetch.compute_work_request(p);
+            work_fetch.piggyback_work_request(p);
             action = simulate_rpc(p);
             break;
         }