Add QT 4.6.4 build shell script and apps build shell script in qt4 folder

guowenxue

2019-05-17 1abf6c4b401af1c20d62fe9c2f5e73ce84d14b22

 modules/c/ds18b20.c

@@ -116,5 +116,7 @@
    /* convert string value to float value */
    *temp = atof(ptr)/1000;
   
    close(fd);

    return 0;
}