File signed-compare.patch of Package jdslabs-xmos-dfu

diff --git a/xmos_dfu/xmosdfu.cpp b/xmos_dfu/xmosdfu.cpp
index ad32901..6c32232 100644
--- a/xmos_dfu/xmosdfu.cpp
+++ b/xmos_dfu/xmosdfu.cpp
@@ -43,6 +43,7 @@ DEALINGS WITH THE SOFTWARE OR DOCUMENTATION.
 #include <stdlib.h>
 #include <string.h>
 #include <time.h>
+#include <unistd.h>
 
 /* libusb 1.0.0-dev must be installed. Please see README */
 #ifdef __linux
@@ -111,7 +112,7 @@ static int find_xmos_device(unsigned int id, unsigned int list)
     libusb_device *dev;
     libusb_device **devs;
     int i = 0;
-    int found = 0;
+    unsigned int found = 0;
   
     libusb_get_device_list(NULL, &devs);
 
@@ -123,7 +124,7 @@ static int find_xmos_device(unsigned int id, unsigned int list)
 
         if(desc.idVendor == XMOS_VID || desc.idVendor == THESYCON_VID)
         {
-            for(int j = 0; j < sizeof(pidList)/sizeof(unsigned short); j++)
+            for(size_t j = 0; j < sizeof(pidList)/sizeof(unsigned short); j++)
             {
                 if(desc.idProduct == pidList[j] && !list)
                 {
@@ -318,7 +319,7 @@ int write_dfu_image(char *file) {
   const int progress_width = 50;
   int last_percent = -1;
 
-  for (i = 0; i < num_blocks; i++) {
+  for (i = 0; i < (int)num_blocks; i++) {
     memset(block_data, 0x0, block_size);
     fread(block_data, 1, block_size, inFile);
     dfu_download(0, dfuBlockCount, block_size, block_data);
@@ -509,7 +510,8 @@ int main(int argc, char **argv) {
     printf("Waiting for XMOS device to restart and enter DFU mode...\n");
 
     // Wait for device to enter dfu mode and restart
-    system("sleep 3");
+    // system("sleep 3");
+    sleep(3);
 
     // NOW IN DFU APPLICATION MODE
 
@@ -558,7 +560,8 @@ int main(int argc, char **argv) {
     printf("... Reverting DAC to factory image\n");
     xmos_dfu_revertfactory(); 
     // Give device time to revert firmware
-    system("sleep 2");
+    // system("sleep 2");
+    sleep(2);
     xmos_dfu_resetfromdfu(XMOS_DFU_IF);
   } 
   else{