‘for’ loop initial declarations within plugins/input_uvc/v4l2uvc.c may break compilation

[daghemo]

I'm getting the following error when compiling mjpg-streamer on a Raspberry Pi with Debian jessie:

mjpg-streamer/mjpg-streamer-experimental/plugins/input_uvc/v4l2uvc.c:969:5: error: ‘for’ loop initial declarations are only allowed in C99 or C11 mode
     for (int i = 0; i < NB_BUFFER; i++) {
     ^
mjpg-streamer/mjpg-streamer-experimental/plugins/input_uvc/v4l2uvc.c:969:5: note: use option -std=c99, -std=gnu99, -std=c11 or -std=gnu11 to compile your code

Latest version on GCC defaults to C99 compatibility, but not the one running on my Raspberry Pi. :)
Would it be possibile to add "std=c99" or something like that into the Makefile? Or maybe just modifying the plugins/input_uvc/v4l2uvc.c as of commit 29fb2b9, changing from:

    for (int i = 0; i < NB_BUFFER; i++) {
        munmap(vd->mem[i], vd->buf.length);
    }

To:

    int i;
    for (i = 0; i < NB_BUFFER; i++) {
        munmap(vd->mem[i], vd->buf.length);
    }

[jacksonliam]

Ahhh good spot, yes will modify the loop.