AIX下xlc编译C程序报警！Duplicate symbol！求助

julynada

ld: 0711-224 WARNING: Duplicate symbol

a.c

1. #include <stdio.h>
   
2. #include "public.h"
   
3. 
   
4. int
   
5. main ()
   
6. {
   
7.         char buff[buffSize];
   
8.         func();
   
9.         exit(0);
   
10. }
    

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b.c

1. #include <stdio.h>
   
2. #include "public.h"
   
3. 
   
4. int
   
5. func ()
   
6. {
   
7.         char buff[buffSize];
   
8.         return 0;
   
9. }
   

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public.h

1. #ifndef _PUBLIC_H_
   
2. #define _PUBLIC_H_
   
3. const int buffSize=2048;
   
4. #endif
   

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编译命令

1. xlc -bloadmap:MAP -o a a.c b.c
   
2. a.c:
   
3. b.c:
   
4. ld: 0711-224 WARNING: Duplicate symbol: buffSize
   
5. ld: 0711-344 See the loadmap file MAP for more information.

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MAP文件片段

1. FILELIST: Number of previously inserted files processed: 5
   
2. (ld): resolve
   
3. ld: 0711-228 WARNING: Duplicate symbols were found while resolving symbols.
   
4.     The following duplicates were found:
   
5. Symbol                    Source-File(Object) OR Import-File{Shared-object}
   
6. ------------------------- -------------------------------------------------
   
7. buffSize                  a.c(a.o)
   
8.     ** Duplicate **        b.c(b.o)
   

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如何能去除报警啊？

bittertea

public.h改为
#define buffSize 2048
式下

hellioncu

改用宏就没事了

julynada

为什么这样啊？这样的话，常量就不能定义在头文件里了么？