Define a
conditional build rule to build if
Code:
[vbld_FSO.FileExists("C:\Path\To\File.ext")]
is true (replace FileExists with FolderExists to test for folders). When building the project, if the file/folder exists, the rule will evaluate to -1 (True), and the step will be executed, otherwise it will evaluate to 0 and be skipped. To perform steps in both cases ("if" and "else"), use is false for the else condition (see the
Advanced.bld sample for a demonstration).