[Gllug] OT - GNU compiler error

[John Winters]

John Winters wrote:
> Mick Farmer wrote:
>> Dear GLLUGers,
>>
>> I'm compiling a C program with the command line
>>
>>     gcc -ansi -c search.c
>>
>> and get the error message
>>
>>     search.c:5: error: duplicate `extern'

I've done a bit more research into this and it seems that gcc produces 
this error if it encounters the word "extern" twice in quick succession. 
  You probably have an un-terminated declaration of some sort (missing 
semi-colon?) at the end of zero.h

This minimal code will demonstrate the problem.

==== File zero.h ====

extern

==== File problem.c ====

#include "zero.h"
extern int debug;

john at knight:~/test$ gcc -ansi problem.c
problem.c:2: error: duplicate 'extern'
john at knight:~/test$

HTH
John
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