diff --git a/glide3x/h3/minihwc/dxdrvr.c b/glide3x/h3/minihwc/dxdrvr.c
index ed540a5..1f1f4c2 100644
--- a/glide3x/h3/minihwc/dxdrvr.c
+++ b/glide3x/h3/minihwc/dxdrvr.c
@@ -751,7 +751,7 @@ dxControl(FxU32 code, hwcBufferDesc *pBufDesc, int *width, int *height)
 } /* dxControl */
 
 FxBool
-dxClose()
+dxClose(void)
 {
   GDBG_INFO(80, "dxClose:\n");
 /*
diff --git a/glide3x/h5/minihwc/dxdrvr.c b/glide3x/h5/minihwc/dxdrvr.c
index 6457d49..a86eb5e 100644
--- a/glide3x/h5/minihwc/dxdrvr.c
+++ b/glide3x/h5/minihwc/dxdrvr.c
@@ -772,7 +772,7 @@ dxControl(FxU32 code, hwcBufferDesc *pBufDesc, int *width, int *height)
 } /* dxControl */
 
 FxBool
-dxClose()
+dxClose(void)
 {
   GDBG_INFO(80, "dxClose:\n");
 /*
diff --git a/glide3x/sst1/init/init96/dxdrvr.c b/glide3x/sst1/init/init96/dxdrvr.c
index 678a319..d184816 100644
--- a/glide3x/sst1/init/init96/dxdrvr.c
+++ b/glide3x/sst1/init/init96/dxdrvr.c
@@ -746,7 +746,7 @@ dxControl(FxU32 code, InitBufDesc_t *pBufDesc, int *width, int *height)
 } /* dxControl */
 
 FxBool
-dxClose()
+dxClose(void)
 {
   GDBG_INFO((80, "dxClose:\n"));
 
@@ -1002,7 +1002,7 @@ dxControl(FxU32 code, InitBufDesc_t *pBufDesc, int *width, int *height)
   return FXTRUE;
 } /* dxControl */
 FxBool
-dxClose()
+dxClose(void)
 {
 #define FN_NAME "dxClose"
   GDBG_INFO((80, "%s:  Setting up VESA mode 640*480*\n", FN_NAME));
diff --git a/glide3x/sst1/init/init96/fxinit96.h b/glide3x/sst1/init/init96/fxinit96.h
index d06bd2a..40fbecd 100644
--- a/glide3x/sst1/init/init96/fxinit96.h
+++ b/glide3x/sst1/init/init96/fxinit96.h
@@ -19,7 +19,6 @@
 **
 */
 
-
 #ifndef _FXINIT96_H_
 #define _FXINIT96_H_
 
@@ -41,11 +40,11 @@ FxBool dxOpen(
         int                     nAux,
         InitBufDesc_t           *pBufDesc,
         int                     *width,
-        int                     *height, 
+        int                     *height,
         InitSwapType_t          *swapType
 );
 FxBool dxControl(FxU32 control, InitBufDesc_t *pDesc, int *w, int *h);
-FxBool dxClose();
+FxBool dxClose(void);
 void   dxSwap(FxU32 code);
 
 #else
@@ -60,11 +59,11 @@ FxBool linOpen(
         int                     nAux,
         InitBufDesc_t           *pBufDesc,
         int                     *width,
-        int                     *height, 
+        int                     *height,
         InitSwapType_t          *swapType
 );
 FxBool linControl(FxU32 control, InitBufDesc_t *pDesc, int *w, int *h);
-FxBool linClose();
+FxBool linClose(void);
 void   linSwap(FxU32 code);
 void   linFlip(FxU32 buffer);
 
@@ -125,7 +124,6 @@ GDBG_INFO((80, "SET:  Register:  %s (0x%x) = 0x%x\n",\
 #define GET(s) *(GETREADADDR(s))
 #endif
 
-
 #ifdef __cplusplus
 }
 #endif
diff --git a/glide3x/sst1/init/init96/lindrvr.c b/glide3x/sst1/init/init96/lindrvr.c
index 15d9bbb..78826d6 100644
--- a/glide3x/sst1/init/init96/lindrvr.c
+++ b/glide3x/sst1/init/init96/lindrvr.c
@@ -123,15 +123,16 @@ linFlip(FxU32 buffer)
 void linExit(void);
 
 static FxBool
-ErrorMessage(Window win, char *err)
+ErrorMessage(Window win, const char *err)
 {
   fprintf(stderr, "Error %s \n", err);
   return FXFALSE;
 } /* ErrorMessage */
 
-FxBool linSetup() {
+FxBool linSetup(void) {
   int eventbase, errorbase;
-  int banksize, baseaddr;
+  int banksize;
+  unsigned int baseaddr;
 
   if (dpy!=0) return FXTRUE;
   dpy=XOpenDisplay("");
@@ -220,7 +221,7 @@ cvtXToGlideDesc(InitBufDesc_t *pDesc) {
   dFifo->bufType   = INIT_BUFFER_FIFOBUFFER;
   dFifo->bufOffset = (int)addrFifo-dScreen->bufOffset;
   dFifo->bufStride = FIFOSIZE;
-  
+
   GDBG_INFO((80, "cvtXToGlideDesc: dFront->bufOffset = 0x%x\n", dFront->bufOffset));
   GDBG_INFO((80, "cvtXToGlideDesc: dBack->bufOffset = 0x%x\n", dBack->bufOffset));
   GDBG_INFO((80, "cvtXToGlideDesc: dAux->bufOffset = 0x%x\n", dAux->bufOffset));
@@ -466,7 +467,7 @@ FxBool
 linControl(FxU32 code, InitBufDesc_t *pBufDesc, int *width, int *height)
 {
   unsigned int i, w = 0, h = 0;
-  
+
   GDBG_INFO((80, "linControl: code = %d\n", code));
 
   if (IsFullScreen) return FXTRUE;
@@ -520,7 +521,7 @@ linControl(FxU32 code, InitBufDesc_t *pBufDesc, int *width, int *height)
 } /* linControl */
 
 FxBool
-linClose()
+linClose(void)
 {
   GDBG_INFO((80, "linClose:\n"));
   if (!dpy) return FXTRUE;
@@ -581,5 +582,3 @@ linFlip(FxU32 buffer)
 } /* linFlip */
 
 #endif
-
-