Bitmap program compile time error

Hi,

I've got some compile-time errors I can't understand in the following small bitmap program (takes an input bitmap and produces a modified output):

52 C:\myc\iedit.c  : initializer element is not constant
52 C:\myc\iedit.c  : [Warning] data definition has no type or storage class
54 C:\myc\iedit.c  : [Warning] data definition has no type or storage class

with some follow up errors too.  I can't understant why the initializer element needs to be constant.
I previously used the const keyword in the prototype const int doMenu(void) in iedit_menu.c  but removed it when I saw it was wrong.
I don't think the old version of the object file is being used but I could be wrong.

There are 2 source files, a menu and the implementation code  and one header file for the menu.

File 1:
-------------------------------------
Filename : iedit_menu.h
Synopsis : Header for prototypes and defines for the user menu

#define QUIT_OPTION 0
#define GRAYSCALE_OPTION 1
#define INVERT_OPTION 2

int doMenu(void);
--------------------------------

File 2:
---------------------------------
Filename : iedit_menu.c
Synopsis : Header for prototypes and defines for the user menu

#include "iedit_menu.h"

int doMenu(void)
{
  int tempChoice;
 
  for(;;)
  {
    printf("Choose an option:\r\n");
    printf("1 - Change Image to Greyscale");
    printf("2 - Invert Image Colours");
    printf("0 - Quit");
    tempChoice = getchar();
    if(tempChoice <=2 && tempChoice >0)
      return tempChoice;
    else
      printf("Invalid choice");
  }
}
-------------------------------------------------------------

File 3:
------------------------------
Filename : iedit..c
Synopsis :  Contains the main method and code for producing a new modified bitmap from an original.


#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include "iedit_menu.h"

#define BITMAP_HEADER_SIZE 115
#define DEBUG 0


int main(int argc, char** argv)
{
  FILE *inFile, *outFile;
  unsigned char mask;
  int i, temp, byteCounter, choice;
  int tempPart[4],signature;
  unsigned char fileType[2];
 
  mask = 0xFF;
 
    /*Check args and open source and destination files*/
  if(argc!=3)
  {
    fprintf(stderr,"Usage : iedit <source file> <destination file>");
    return EXIT_FAILURE;
  }
  inFile = fopen(argv[1],"rb");
  if(inFile == NULL)
  {
    fprintf(stderr,"iedit : Unable to open the file '%s' for reading", argv[1]);
    return EXIT_FAILURE;
  }
  outFile = fopen(argv[2],"wb");
  if(outFile == NULL)
  {
    fprintf(stderr,"iedit : Unable to open the file '%s' for reading", argv[2]);
    return EXIT_FAILURE;
  }
   
 
  fileType[0] = getc(inFile);
  fileType[1] = getc(inFile);
  fseek(inFile, 0, SEEK_SET);
  signature = ( (int)fileType[0]<<8 ) + (int)fileType[1];
  if(signature!= 0x424D)
    printf("The file does not have a recognised bitmap signature, do you wish to continue?");
    if(tolower(getChar())=='n')
      return EXIT_SUCCESS;
  }    
 
 
  choice = doMenu();
   
  byteCounter =0;  
 
    /*copy the bitmap header exactly*/
  for(i=0;i<BITMAP_HEADER_SIZE;i++)
  {
     temp = getc(inFile);
     if(temp==EOF)
     {
       fprintf(stderr,"iedit : Error, unexpected EOF found in bitmap header.\r\nSource file is likely not a bitmap or is corrupt");
       return EXIT_FAILURE;
     }
     putc(temp, outFile);    
  }
 
    /*manipulate the image data*/
  switch(choice)
  {
    case QUIT_OPTION:
      printf("Done.");
      return EXIT_SUCCESS;
      break;
    case GRAYSCALE_OPTION:
        while( (tempPart[byteCounter] = getc(inFile))!=EOF )
        {
          byteCounter++;
            /* On the 3rdbyte of a pixel, write output and reset counter*/
          if(byteCounter ==3)
          {
            byteCounter = 0;
             /*get average for grayscale intensity*/
            tempPart[0] = (tempPart[0]+tempPart[1]+tempPart[2])/3;
     
            putc(tempPart[0], outFile);
            putc(tempPart[0], outFile);
            putc(tempPart[0], outFile);
            putc(tempPart[3], outFile); /* translucency byte*/
          }
        }
        break;  
    case default :
      printf("Invalid selection");
      break;
  }
 
}
 

Thanks for any help.