Nevermind, I did this:

if ( (dir = opendir(IFACES_PATH)) != NULL ) {

No warnings now.

Edward

On 19/10/2015, Edward Bartolo <edbarx@???> wrote:
> Hi,
>
> Could someone explain to me what is the meaning of this error and what
> I should do to avoid having this warning?
>
> edbarx@edbarx-pc:~/netman/backend_src/src$ gcc -Wall -Wfatal-errors -g
> -lm -I../include core_functions.c file_functions.c backend.c
> essid_encoder.c automated_scanner.c -o backend
> automated_scanner.c: In function ‘autoWirelessScanPlus_RN’:
> automated_scanner.c:521:2: warning: suggest parentheses around
> assignment used as truth value [-Wparentheses]
> if ( dir = opendir(IFACES_PATH) ) {
> ^
>