fixed compiler warning

diff --git a/src/files.c b/src/files.c
index e8de1142ecf24f958da1c2b548b342472b0102c5..cdb890b92f52325e57ff16136f5696cadbbec4ae 100644 (file)
--- a/src/files.c
+++ b/src/files.c
@@ -13559,7 +13559,9 @@ void CreateCollectElementImages(void)
 
   Info("Converting image file from BMP to PNG ...");
 
-  system(cmd_convert);
+  if (system(cmd_convert) != 0)
+    Fail("converting image file failed");
+
   unlink(filename_bmp);
 
   Info("Done.");