diff --git a/xwords4/wince/Makefile b/xwords4/wince/Makefile
index 1599cddfe..35d348821 100644
--- a/xwords4/wince/Makefile
+++ b/xwords4/wince/Makefile
@@ -53,7 +53,9 @@ CFLAGS += -DCANT_DO_CMDBAR -DBEYOND_IR -DDRAW_LINK_DIRECT
 endif
 endif
 
-CFLAGS += -DARM -I$(MINGW_INC_PATH) -I./ -I../common -I../relay 
+CFLAGS += -DARM -I$(MINGW_INC_PATH) -I./ -I../common -I../relay
+
+CFLAGS += -Wall
 
 # warn upgrading users of new dict location
 CFLAGS += -DDICTS_MOVED_ALERT
diff --git a/xwords4/wince/ceaskpwd.c b/xwords4/wince/ceaskpwd.c
index 0c9d28b73..d4eda9b25 100755
--- a/xwords4/wince/ceaskpwd.c
+++ b/xwords4/wince/ceaskpwd.c
@@ -20,6 +20,7 @@
 #include "ceaskpwd.h"
 #include "cemain.h"
 #include "ceutil.h"
+#include <stdio.h>              /* swprintf */
 
 static void
 nameToLabel( HWND hDlg, const XP_UCHAR* name, XP_U16 labelID )
diff --git a/xwords4/wince/cedict.c b/xwords4/wince/cedict.c
index b76596716..893eaf80a 100755
--- a/xwords4/wince/cedict.c
+++ b/xwords4/wince/cedict.c
@@ -19,6 +19,9 @@
 
 #ifndef STUBBED_DICT
 
+#include <stdio.h>              /* _snwprintf */
+#include <string.h>              /* _snwprintf */
+
 #include "stdafx.h" 
 #include <commdlg.h>
 #include "dictnryp.h"
@@ -432,10 +435,10 @@ openMappedFile( MPFORMAL const wchar_t* name, HANDLE* mappedFileP,
                 HANDLE* hFileP, XP_U32* sizep )
 {
     XP_U8* ptr = NULL;
-    HANDLE mappedFile = NULL;
     HANDLE hFile;
 
-#if defined TARGET_OS_WINCE
+#if defined _WIN32_WCE
+    HANDLE mappedFile = NULL;
     hFile = CreateFileForMapping( name,
                                   GENERIC_READ,
                                   FILE_SHARE_READ, /* (was 0: no sharing) */
@@ -608,8 +611,6 @@ locateOneDir( MPFORMAL wchar_t* path, OnePathCB cb, void* ctxt, XP_U16 nSought,
                 }
             } else if ( checkIfDictAndLegal( MPPARM(mpool) path, startLen,
                                              data.cFileName ) ) {
-                XP_U16 len;
-                XP_UCHAR buf[CE_MAX_PATH_LEN+1];
                 XP_ASSERT( *nFoundP < nSought );
 
                 lstrcpy( path+startLen, data.cFileName );
@@ -812,8 +813,6 @@ static XP_Bool
 findAlternateDict( CEAppGlobals* globals, wchar_t* path )
 {
     wchar_t shortPath[CE_MAX_PATH_LEN+1];
-    wchar_t* shortName; 
-    XP_U16 nFound;
     FindOneData data;
 
     XP_MEMSET( &data, 0, sizeof(data) );
@@ -862,7 +861,6 @@ bname( XP_UCHAR* in )
 wchar_t*
 wbname( wchar_t* buf, XP_U16 buflen, const wchar_t* in )
 {
-    int len;
     wchar_t* result;
 
     _snwprintf( buf, buflen, L"%s", in );
diff --git a/xwords4/wince/ceginfo.c b/xwords4/wince/ceginfo.c
index bd4ade20e..7ad01b904 100755
--- a/xwords4/wince/ceginfo.c
+++ b/xwords4/wince/ceginfo.c
@@ -18,6 +18,7 @@
  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  */
 
+#include <stdio.h>   /* swprintf */
 #include "ceginfo.h"
 #include "cemain.h"
 #include "ceutil.h"
@@ -175,7 +176,6 @@ loadFromGameInfo( HWND hDlg, CEAppGlobals* globals, GameInfoState* giState )
 #ifndef XWFEATURE_STANDALONE_ONLY
     wchar_t* roles[] = { L"Standalone", L"Host", L"Guest" };
 #endif
-    XP_UCHAR* str;
 
     giState->curServerHilite = gi->serverRole;
 
diff --git a/xwords4/wince/cemain.c b/xwords4/wince/cemain.c
index fe5770433..86f35464f 100755
--- a/xwords4/wince/cemain.c
+++ b/xwords4/wince/cemain.c
@@ -24,6 +24,7 @@
 #include <commctrl.h>
 #include <commdlg.h>
 #include <stdio.h>
+#include <time.h>               /* time() */
 #include <winuser.h>
 #ifdef _WIN32_WCE
 # include <aygshell.h>
@@ -135,7 +136,6 @@ static void ce_util_engineStarting( XW_UtilCtxt* uc );
 static void ce_util_engineStopping( XW_UtilCtxt* uc );
 #endif
 
-static void notImpl( CEAppGlobals* globals );
 static void messageBoxChar( CEAppGlobals* globals, XP_UCHAR* str,
                             wchar_t* title );
 static XP_Bool queryBoxChar( CEAppGlobals* globals, XP_UCHAR* msg );
@@ -435,7 +435,7 @@ figureBoardParms( CEAppGlobals* globals, XP_U16 nRows, CEBoardParms* bparms )
     XP_U16 scrnWidth, scrnHeight;
     XP_U16 trayVScale, boardLeft, scoreWidth, scoreHeight;
     XP_U16 boardHt, boardWidth, hScale, vScale, nVisibleRows;
-    XP_U16 boardHtLimit, trayTop, boardTop;
+    XP_U16 trayTop, boardTop;
     XP_Bool horiz;
     XP_U16 trayWidth;
     XP_U16 scrollWidth = 0;
@@ -702,7 +702,7 @@ logLastError( const char* comment )
     XP_U16 len;
     XP_U16 lenSoFar;
 
-    sprintf( msg, "%s (err: %d): ", comment, lastErr );
+    sprintf( msg, "%s (err: %ld): ", comment, lastErr );
     lenSoFar = strlen( msg );
 
     FormatMessage( 
@@ -1604,10 +1604,10 @@ ceConfirmAndSave( CEAppGlobals* globals )
     return confirmed;
 } /* ceConfirmAndSave */
 
+#ifdef _WIN32_WCE
 static HWND
 makeCommandBar( HWND hwnd, HINSTANCE hInst )
 {
-#ifdef _WIN32_WCE
     SHMENUBARINFO mbi;
 
     XP_MEMSET( &mbi, 0, sizeof(mbi) );
@@ -1623,10 +1623,8 @@ makeCommandBar( HWND hwnd, HINSTANCE hInst )
     }
 
     return mbi.hwndMB;
-#else
-    return NULL;
-#endif
 } /* makeCommandBar */
+#endif
 
 #ifdef CEFEATURE_CANSCROLL
 static XP_Bool
@@ -2018,12 +2016,6 @@ About(HWND hDlg, UINT message, WPARAM wParam, LPARAM lParam)
     return FALSE;
 } /* About */
 
-static void
-notImpl( CEAppGlobals* globals )
-{
-    messageBoxChar( globals, "feature not implemented", NULL );
-} /* notImpl */
-
 static XP_Bool
 ceMsgFromStream( CEAppGlobals* globals, XWStreamCtxt* stream, 
                  wchar_t* title, XP_Bool isQuery, XP_Bool destroy )
@@ -2103,15 +2095,6 @@ queryBoxChar( CEAppGlobals* globals, XP_UCHAR* msg )
     return answer == IDOK || answer == IDYES;
 } /* queryBoxChar */
 
-static XP_Bool
-queryBoxStream( CEAppGlobals* globals, XWStreamCtxt* stream )
-{
-    XP_UCHAR* buf = ceStreamToStrBuf( MPPARM(globals->mpool) stream );
-    XP_Bool result = queryBoxChar( globals, buf );
-    XP_FREE( globals->mpool, buf );
-    return result;
-} /* queryBoxStream */
-
 static XP_Bool
 ceQueryFromStream( CEAppGlobals* globals, XWStreamCtxt* stream )
 {
@@ -2154,7 +2137,6 @@ wince_debugf(XP_UCHAR* format, ...)
 {
 #ifdef BEYOND_IR
     static HANDLE s_logMutex = NULL;
-    DWORD wres;
 #endif
     XP_UCHAR buf[256];
     XP_UCHAR timeStamp[32];
@@ -2345,10 +2327,7 @@ static XP_Bool
 ce_util_userQuery( XW_UtilCtxt* uc, UtilQueryID id, XWStreamCtxt* stream )
 {
     char* query = NULL;
-    char* info = NULL;
     CEAppGlobals* globals = (CEAppGlobals*)uc->closure;
-    XP_Bool answer = XP_FALSE;
-    XP_Bool queryWithStream = XP_FALSE;
 
     switch( id ) {
     case QUERY_COMMIT_TURN:
diff --git a/xwords4/wince/ceprefs.c b/xwords4/wince/ceprefs.c
index 7b12d0cde..1306e56ce 100755
--- a/xwords4/wince/ceprefs.c
+++ b/xwords4/wince/ceprefs.c
@@ -190,7 +190,7 @@ loadControlsFromState( HWND hDlg, CePrefsDlgState* pState )
     ceSetChecked( hDlg, IDC_CHECKHINTSLIMITS, prefsPrefs->gp.allowHintRect );
 #endif
     /* timer */
-    sprintf( numBuf, "%d", prefsPrefs->gp.gameSeconds / 60 );
+    snprintf( numBuf, sizeof(numBuf), "%d", prefsPrefs->gp.gameSeconds / 60 );
     ceSetDlgItemText( hDlg, TIMER_EDIT, numBuf );
     setTimerCtls( hDlg, prefsPrefs->gp.timerEnabled );