Macro to put data in Little Endian

My enivroment is Unix, C.  I get the following compile error on attached 'C' code.  Please advise.

"put_little_u32.c", line 8: error 4068: Missing comma seperator between par
ameters in macro "endian_put_native_to_little_u32".

#include <stdio.h>
 
/* This macro reverses data order so LSB is first. */
#define endian_put_native_to_little_u32(long src, char * dest) \
        dest[0] = (char)(src); \
	dest[1] = (char)(src >> 8); \
	dest[2] = (char)(src >> 16); \
	dest[3] = (char)(src >> 24);  /* line 8 */
 
 
main()     
{
   char data[4];  
   
   long pgn = 0x33221100;
   
   endian_put_native_to_little_u32(pgn, &data[0]);
   
   printf("data[0] = %d.\n", data[0]);
   printf("data[1] = %d.\n", data[1]);
   printf("data[2] = %d.\n", data[2]);
   printf("data[3] = %d.\n", data[3]);
}

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