Open Radar

 
I have a project created under Xcode 3.x, which was building a command line tool. The target type of this project was set incorrectly at some point, and was:

    productType = "com.apple.product-type.application";

The product did not have a bundle, Info.plist, or any of the other attributes of a bundled app; it just produced a single Mach-O executable. Despite this, the project could be built and debugged under Xcode 3 using gdb.


Under Xcode 4.2.1, the project builds but can not be debugged with gdb. The error produced is:

    No executable file specified.
    Use the "file" or "exec-file" command.

Switching to lldb allows the project to be debugged, as does editing the productType to the correct value for a command line tool:

    productType = "com.apple.product-type.tool";

Ideally gdb would give a more informative error, and project validation would indicate that the target type didn't match the product type (e.g., bundled app was requested but no bundle or Info.plist was being generated).