Advanced Build Commands

Advanced Build Commands Menu
Menu Item	Action
Sysgen	Same asBuild Solutionmenu. Runs the Sysgen tool on files in the OS design. Choose this command when you change the SYSGEN variables, typically by adding or removing items from the Catalog. Build Command Prompt:blddemo -q
Clean Sysgen	Same asRebuild Solutionmenu. Cleans the SYSGEN variables in the operating system, runs the Sysgen tool on files in the OS design, compiles BSPs and runs the Sysgen tool on BSPs, and builds subprojects. Build Command Prompt:blddemo clean -q
Build and Sysgen	Builds commponents that supplied by Microsoft, and then Build Solution. Run this command when you modify files under %_WINCEROOT%\Public, or under %_WINCEROOT%\<custom_directory>, that are included in the OS design. NOTRECOMMANDEDbecause may take several hours on slow PC. Build Command Prompt:blddemo
Rebuild and Sysgen Clean	Removes all previously built OS components, and then Build all components source codes supplied by Microsoft. After that, build as same as Build Solution. NOTRECOMMANDEDbecause may take several hours on slow PC. Build Command Prompt:blddemo clean cleanplat -c
Build and Sysgen Current BSP	Builds BSP source code and subproject code, and then runs the Sysgen tool on files in the BSP. If you modify files in your BSP directory or in one of your subprojects, then choose this command. Build Command Prompt:blddemo -qbsp
Rebuild and Clean Sysgen Current BSP	Deletes the previously build BSP modules, subprojects, and rebuild them. Build Command Prompt:blddemo -qbsp -c

（1）"Sysgen"：相当于执行命令"blddemo -q”，一般第一次编译或者是改变了"Catalog"中的item的时候，就用这个了。

（2）"Clean Sysgen"：相当于执行命令"blddemo clean -q"，按照文档上的说明，当修改了 %_WINCEROOT%\Public\CEBASE\OAK\Misc\Cesysgen.bat的时候，或者改变了以SYSGEN，BSP为前缀的环境变量的时候，需要使用这个来编译。

一般只有第一次创建完工程的时候，我会用"Sysgen"命令，以后只要是改变了SYSGEN为前缀的环境变量的设置或者是"Catalog"中的item，我就会使用"Clean Sysgen"，而改变了以BSP为前缀的环境变量要看具体情况，也不一定就要用"Clean Sysgen"。继续...

（3）"Build and Sysgen"：相当于执行命令"blddemo"，当改变了\public目录下的代码，比如你打了WinCE的patch，你就需要用这个了。

"Rebuild and Sysgen Clean"：相当于执行命令"blddemo clean cleanplat -c"，相当于清除上一次编译生成的文件，然后重新编译\public目录和你的工程。

（4）"Build and Sysgen Current BSP"：相当于执行命令"blddemo -qbsp"，仅编译\platform目录下的代码。所以当改变了\platform目录下的代码的时候或者说改变了BSP的代码的时候，可以用这个来编译。

（5）"Rebuild and Clean Sysgen Current BSP"：相当于执行命令"blddemo -qbsp -c"，相当于完全重新编译\platform目录下要编译的代码。