diff --git a/extracted/plugins/B2DPlugin/src/common/B2DPlugin.c b/extracted/plugins/B2DPlugin/src/common/B2DPlugin.c
index 575585d108..5261feff4e 100644
--- a/extracted/plugins/B2DPlugin/src/common/B2DPlugin.c
+++ b/extracted/plugins/B2DPlugin/src/common/B2DPlugin.c
@@ -13643,6 +13643,7 @@ stepToNextWideBezierInat(sqInt bezier, sqInt yValue)
 		updateData[GBUpdateY] = lastY;
 		updateData[GBUpdateDX] = fwDx;
 		updateData[GBUpdateDY] = fwDy;
+		((signed)lastX >> 8);
 	}
 	else {
 
@@ -13672,6 +13673,7 @@ stepToNextWideBezierInat(sqInt bezier, sqInt yValue)
 	updateData1[GBUpdateY] = lastY1;
 	updateData1[GBUpdateDX] = fwDx1;
 	updateData1[GBUpdateDY] = fwDy1;
+	((signed)lastX1 >> 8);
 	computeFinalWideBezierValueswidth(bezier, lineWidth);
 	return 0;
 }
diff --git a/extracted/plugins/JPEGReadWriter2Plugin/src/common/jdphuff.c b/extracted/plugins/JPEGReadWriter2Plugin/src/common/jdphuff.c
index 2267809945..892ee527ce 100755
--- a/extracted/plugins/JPEGReadWriter2Plugin/src/common/jdphuff.c
+++ b/extracted/plugins/JPEGReadWriter2Plugin/src/common/jdphuff.c
@@ -200,7 +200,7 @@ start_pass_phuff_decoder (j_decompress_ptr cinfo)
 
 #ifdef AVOID_TABLES
 
-#define HUFF_EXTEND(x,s)  ((x) < (1<<((s)-1)) ? (x) + (((-1)<<(s)) + 1) : (x))
+#define HUFF_EXTEND(x,s)  ((x) < (1<<((s)-1)) ? (x) + ((((signed int)((unsigned int)-1))<<(s)) + 1) : (x))
 
 #else
 
@@ -211,10 +211,10 @@ static const int extend_test[16] =   /* entry n is 2**(n-1) */
     0x0100, 0x0200, 0x0400, 0x0800, 0x1000, 0x2000, 0x4000 };
 
 static const int extend_offset[16] = /* entry n is (-1 << n) + 1 */
-  { 0, ((-1)<<1) + 1, ((-1)<<2) + 1, ((-1)<<3) + 1, ((-1)<<4) + 1,
-    ((-1)<<5) + 1, ((-1)<<6) + 1, ((-1)<<7) + 1, ((-1)<<8) + 1,
-    ((-1)<<9) + 1, ((-1)<<10) + 1, ((-1)<<11) + 1, ((-1)<<12) + 1,
-    ((-1)<<13) + 1, ((-1)<<14) + 1, ((-1)<<15) + 1 };
+  { 0, (((signed int)((unsigned int)-1))<<1) + 1, (((signed int)((unsigned int)-1))<<2) + 1, (((signed int)((unsigned int)-1))<<3) + 1, (((signed int)((unsigned int)-1))<<4) + 1,
+    (((signed int)((unsigned int)-1))<<5) + 1, (((signed int)((unsigned int)-1))<<6) + 1, (((signed int)((unsigned int)-1))<<7) + 1, (((signed int)((unsigned int)-1))<<8) + 1,
+    (((signed int)((unsigned int)-1))<<9) + 1, (((signed int)((unsigned int)-1))<<10) + 1, (((signed int)((unsigned int)-1))<<11) + 1, (((signed int)((unsigned int)-1))<<12) + 1,
+    (((signed int)((unsigned int)-1))<<13) + 1, (((signed int)((unsigned int)-1))<<14) + 1, (((signed int)((unsigned int)-1))<<15) + 1 };
 
 #endif /* AVOID_TABLES */
 
@@ -493,7 +493,7 @@ decode_mcu_AC_refine (j_decompress_ptr cinfo, JBLOCKROW *MCU_data)
   phuff_entropy_ptr entropy = (phuff_entropy_ptr) cinfo->entropy;
   int Se = cinfo->Se;
   int p1 = 1 << cinfo->Al;	/* 1 in the bit position being coded */
-  int m1 = (-1) << cinfo->Al;	/* -1 in the bit position being coded */
+  int m1 = ((signed int)((unsigned int)-1)) << cinfo->Al;	/* -1 in the bit position being coded */
   register int s, k, r;
   unsigned int EOBRUN;
   JBLOCKROW block;
diff --git a/extracted/plugins/UnixOSProcessPlugin/src/common/UnixOSProcessPlugin.c b/extracted/plugins/UnixOSProcessPlugin/src/common/UnixOSProcessPlugin.c
index db3b4417ea..2e22dd9d65 100644
--- a/extracted/plugins/UnixOSProcessPlugin/src/common/UnixOSProcessPlugin.c
+++ b/extracted/plugins/UnixOSProcessPlugin/src/common/UnixOSProcessPlugin.c
@@ -281,7 +281,7 @@ static sqInt (*popthenPush)(sqInt nItems, sqInt oop);
 static sqInt (*popRemappableOop)(void);
 static sqInt (*primitiveFail)(void);
 static sqInt (*primitiveFailFor)(sqInt reasonCode);
-static sqInt (*push)(sqInt object);
+static  (*push)(sqInt object);
 static sqInt (*pushInteger)(sqInt integerValue);
 static sqInt (*pushRemappableOop)(sqInt oop);
 static sqInt (*signalSemaphoreWithIndex)(sqInt semaIndex);
diff --git a/extracted/vm/include/common/sqVirtualMachine.h b/extracted/vm/include/common/sqVirtualMachine.h
index c18bb63a19..214ce74f34 100644
--- a/extracted/vm/include/common/sqVirtualMachine.h
+++ b/extracted/vm/include/common/sqVirtualMachine.h
@@ -6,6 +6,7 @@
  */
 #include "interp.h"
 
+
 #if SPURVM
 # define VM_VERSION "5.0"
 #else
@@ -62,9 +63,9 @@ typedef struct VirtualMachine {
 
 	sqInt  (*pop)(sqInt nItems);
 	sqInt  (*popthenPush)(sqInt nItems, sqInt oop);
-	sqInt  (*push)(sqInt object);
+	void  (*push)(sqInt object);
 	sqInt  (*pushBool)(sqInt trueOrFalse);
-	sqInt  (*pushFloat)(double f);
+	void  (*pushFloat)(double f);
 	sqInt  (*pushInteger)(sqInt integerValue);
 	double (*stackFloatValue)(sqInt offset);
 	sqInt  (*stackIntegerValue)(sqInt offset);
@@ -171,7 +172,7 @@ typedef struct VirtualMachine {
 # if VM_PROXY_MINOR > 13
 	/* Reuse these now that Cog provides a production JIT. */
 	sqInt (*statNumGCs)(void);
-	sqInt (*stringForCString)(char *nullTerminatedCString);
+	sqInt (*stringForCString)(const char *nullTerminatedCString);
 # else
 	/* InterpreterProxy methodsFor: 'compiler' */
 
@@ -201,7 +202,7 @@ typedef struct VirtualMachine {
 
 	sqInt (*classExternalAddress)(void);
 	void *(*ioLoadModuleOfLength)(sqInt modIndex, sqInt modLength);
-	void *(*ioLoadSymbolOfLengthFromModule)(sqInt fnIndex, sqInt fnLength, sqInt handle);
+	void *(*ioLoadSymbolOfLengthFromModule)(sqInt fnIndex, sqInt fnLength, void* handle);
 	sqInt (*isInMemory)(sqInt address);
 
 #endif
@@ -234,7 +235,7 @@ typedef struct VirtualMachine {
 
 #if VM_PROXY_MINOR > 5
 	sqInt (*isArray)(sqInt oop);
-	void (*forceInterruptCheck)(void);
+	sqInt (*forceInterruptCheck)(void);
 #endif
 
 #if VM_PROXY_MINOR > 6
@@ -291,7 +292,7 @@ typedef struct VirtualMachine {
 #if VM_PROXY_MINOR > 10
   void  (*addHighPriorityTickee)(void (*ticker)(void), unsigned periodms);
   void  (*addSynchronousTickee)(void (*ticker)(void), unsigned periodms, unsigned roundms);
-  volatile usqLong (*utcMicroseconds)(void);
+  volatile unsigned long long (*utcMicroseconds)(void);
   void (*tenuringIncrementalGC)(void);
   sqInt (*isYoung) (sqInt anOop);
   sqInt (*isKindOfClass)(sqInt oop, sqInt aClass);
@@ -338,7 +339,7 @@ typedef struct VirtualMachine {
 
   sqInt (*scheduleInMainThread)(sqInt (*closure)());
 
-  sqInt (*waitOnExternalSemaphoreIndex)(sqInt semaphoreIndex);
+  void (*waitOnExternalSemaphoreIndex)(sqInt semaphoreIndex);
 
 } VirtualMachine;