update scripts

01_build_src.sh

@@ -1,5 +1,13 @@
 #!/bin/sh
 
+if [ -f "/usr/bin/apt" ]; then
+  apt -y install gcc g++ make gawk bison libelf-dev bridge-utils
+fi
+
+if [ -f "/usr/bin/yum" ]; then
+  yum -y install gcc gcc-c++ make gawk bison elfutils-libelf bridge-utils
+fi
+
 #-----------------------------------------------
 #
 # 导入公共变量

mk_xfce.sh

@@ -917,6 +917,7 @@ if [ "${with_xfce_test}" = true ]; then
   # 4. 在 ssh 的终端里
   #    export DISPLAY=:10
   #    LD_LIBRARY_PATH="${libpath}:${libjpegdir}" xfce4-session 
+  # 5. 这样虚拟机里面就会出现真正的窗口系统
 
 fi