# CMake `ROBOTRACONTEUR_GENERATE_THUNK` Macro {#robotraconteur_generate_thunk}

    ROBOTRACONTEUR_GENERATE_THUNK(<SRCS> <HDRS>
        <ROBDEF_FILES>
        [LANG <cpp|csharp|java>]
        [MASTER_HEADER]
        [AUTO_IMPORT]
        [OUTDIR <DIRECTORY>]
        [MASTER_HEADER_FILENAME <FILENAME>]
        [INCLUDE_DIRS <INCLUDE_DIR1> [<INCLUDE_DIR2> ...]]
        [IMPORTS <ROBDEF_IMPORT_FILE1> [<ROBDEF_IMPORT_FILE2> ...]]
        [CPP_EXTRA_INCLUDE <CPP_HEADER_FILENAME1> [<CPP_HEADER_FILENAME1> ...]]
        )

Generate thunk source files when building the project. Custom commands are added to call `RobotRaconteurGen` on the specified service definitions. See \ref robotraconteurgen.

`SRCS` and `HDRS`

The `SRCS` and `HDRS` specify the variables to receive the autogenerated source files. These generated files should be added to the target as sources.

`ROBDEF_FILES`

The service definition `*.robdef` files to generate thunk source.

`LANG`

The programming language to generate source for. Valid values are `cpp`, `java`, and `csharp` Defaults to `cpp` if not specified.

`MASTER_HEADER`

If present, a "master header" file with the default name `robotraconteur_generated.h` is generated. This file can be included to automatically include all generated header files, and to define `ROBOTRACONTEUR_SERVICE_TYPES` for use with RobotRaconteurNodeSetup in C++.

`AUTO_IMPORT`

If present, `RobotRaconteurGen` will search the current directory working and the include path and automatically load service definition files that are imported byt not specified on the command line.

`OUTDIR`

Specify the output directory for generated files. Default is `CMAKE_CURRENT_BINARY_DIR`. Directory must exist.

`MASTER_HEADER_FILENAME`

Override the name of the master header file. Default is `robotraconteur_generated.h`.

`INCLUDE_DIRS`

Additional directories to search for service definition `*.robdef` files.

`IMPORTS`

Additional service definitions to import to `RobotRaconteurGen`, but not generate sources.

`CPP_EXTRA_INCLUDE`

Add additional `#include` files to the generated C++ header files.

`