Oops, there *are* clients of initGlobalStructure. Nuke the usage. We can

restore it if someone really wants, but it is effectively dead code.

platforms/RiscOS/vm/sqRPCMain.c

@@ -688,7 +688,6 @@ char * endChar;
 
 int main(int argc,  char  *argv[]) {
 FILE *f;
-extern void initGlobalStructure(void);
 extern void setMetaKeyOptions(int swap);
 	parseArguments( argv, argc, args);
 
@@ -698,7 +697,6 @@ extern void setMetaKeyOptions(int swap);
 	atexit(exit_function);   // setup a clean exit function
 
 	InitRiscOS();
-	initGlobalStructure();
 
 	dummyWimpPoll();
 

platforms/minheadless/common/sqVirtualMachineInterface.c

@@ -92,7 +92,6 @@ int sqVMOptionInstallExceptionHandlers = 1;
 int sqVMOptionBlockOnError = 0;
 int sqVMOptionBlockOnWarn = 0;
 
-extern void initGlobalStructure(void); // this is effectively null if a global register is not being used
 extern void findExecutablePath(const char *localVmName, char *dest, size_t destSize);
 
 extern void ioInitWindowSystem(sqInt headlessMode);
@@ -745,8 +744,6 @@ osvm_initialize(OSVMInstanceHandle *resultVMHandle)
     argVec = emptyArgumentVector;
     envVec = emptyEnvironmentVector;
 
-    initGlobalStructure();
-
     /* Initialize the list of internal primitives. */
     ioInitializeInternalPluginPrimitives();
 

platforms/unix/vm/sqUnixMain.c

@@ -2032,8 +2032,6 @@ void imgInit(void)
 # define mtfsfi(fpscr)
 #endif
 
-extern void initGlobalStructure(void); // this is effectively null if a global register is not being used
-
 int
 main(int argc, char **argv, char **envp)
 {
@@ -2063,8 +2061,6 @@ main(int argc, char **argv, char **envp)
   }
 #endif
 
-	initGlobalStructure();
-
  /* Allocate arrays to store copies of pointers to command line
      arguments.  Used by getAttributeIntoLength(). */