Reload source file after custom build step

Question

Hello,
I use a source code generator that creates c-code (i.e. hello.c) from some kind of definition file.
I want the generator to create hello.c on each build, so i have decided to put a batch (that calls the generator) into the "custom build step" of my project.
This way the generator is called before each build.
Unfortunatly CVI does not reload the changed hello.c after it has been modified/overwritten by the batch... the build is done with the previous version of hello.c. Not until the build is finished CVI recognizes that hello.c has been modified and prompts "Update Window from Disk", then I have to run a second build in order to get the changes of hello.c applied.
How can I accomplish to have only build process that first calls the generator and then compiles the project (with modified hello.c)?
Thanks

Answer 1

The problem happens because you have the file open in CVI. If a file is opened in CVI, then CVI uses the contents that are available in the opened window and not the contents on disk. Also, once CVI starts a build it does not monitor changes to the file on disk - consider what should happen if the file on disk changes while it is being compiled. So while the custom build step does overwrite the file on disk, CVI uses the contents that are in the source window for the compilation. To avoid this problem, make sure the file is not opened in CVI when you build - this will make CVI load and compile the file from disk after the custom build step overwrites it.