implicit declaration of function error

HarryBoy · 09-11-2008, 03:37 AM

When I 'make' a third party library called 'DirectFB' after using the --enable-debug option in the ./configure command I get the following error:

Code:

tslib.c:176: error: implicit declaration of function `strcmp'

line 176 is:

Code:

 if (tsdev && !strcmp( tsdev, buf ))

But whenever I 'make' without using --enable-debug option in the ./configure command it is fine.

What could be the problem.

Thanks

prasad_ark · 09-11-2008, 05:52 AM

Try adding #include<string.h> in the .c file giving the error.
I am not sure,but the reason may be --enable-debug is causing some assertion to fail.

Thanks & regards

HarryBoy · 09-11-2008, 06:37 AM

That did the trick

Thanks buddy.

kingraja84 · 09-11-2008, 07:29 AM

Hi .... some general comments

stdout messages should be commented @ end product to customer, so they include print statements only in debug mode.

so even your coding style should be like

#if defined DEBUG_MESG
#include <stdio.h>
#include <string.h>
#endif

main()
{

/*your functionaliy */
:
:
:
#if defined DEBUG_MESG
printf(" my module is running good\n");
#endif
return 0;
}