# Header files in sig\_source\_X\_impl.cc.t

**URL:** <https://www.ruby-forum.com/t/header-files-in-sig-source-x-impl-cc-t/243324>\
**Category:** GNU Radio\
**Created:** [September 16, 2015, 2:29pm UTC](https://www.ruby-forum.com/t/header-files-in-sig-source-x-impl-cc-t/243324 "2015-09-16T14:29:33Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Rafa\_F](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/r/958977/32.png) [@Rafa\_F](https://www.ruby-forum.com/u/Rafa_F)\
**Post date:** [September 16, 2015, 2:29pm UTC](https://www.ruby-forum.com/t/header-files-in-sig-source-x-impl-cc-t/243324/1 "2015-09-16T14:29:33Z")

</div>

Inside the source for sig\_source\_X\_impl.cc.t, there is a include file  
‘#include “@IMPL\_NAME@”’. What is this? I am trying to make my own block  
using the same source code from the signal source block but it throws an  
error about missing this header, but i cannot find it anywhere.