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Newbie Question: Using Header Files & GCC

Posted on 2004-08-31
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Last Modified: 2010-04-15
Below are the 3 files (2 .c files, 1 .h file) in the program I want to compile using GCC. What commands and flags do I need to use in order to compile this program, so that I can run test2.c?  Thanks.



------------test1.c---------
int sum(int a, int b)
{
        return a + b;
}


-----------test1.h----------
int sum(int a, int b);


-----------test2.c---------
#include "test1.h"

int main()
{
        printf("%d\n", sum(4,5));
}
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Question by:bobwood2000
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jkr earned 250 total points
ID: 11945606
You should use

gcc -o test test1.c test2.c

That's it.
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Expert Comment

by:jkr
ID: 11945624
BTW, tested that with gcc version 2.96
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LVL 86

Expert Comment

by:jkr
ID: 11945704
More info - the executable that the above command produces is called 'test' (actually, you can choose any arbitrary name with the '-o' argument) and it is not necessary to specify any header files on the command line.
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Author Comment

by:bobwood2000
ID: 11946126
Thank you!
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