Doubts when preparing WebToolkit's port file

[Reinier Millo Sánchez]

Hi Genode Community

I'm preparing a port file for WebToolkit library. I have prepared the 
basic file to download the library, extract the source code and generate 
include files.
I have an small problem with this library. This library is written in 
C++, but source files have .C extension. This library must be compiled 
with Qt support and .C files are recognized as C source file not C++. I 
need rename all .C files to .cpp. This can be done manually with this 
command line on the WebToolkit's source folder:

    find . -name "*.C" -exec rename 's/\.C$/.cpp/' '{}' \;

I have tried something like this on the port file:

    LICENSE   := GPLv2
    VERSION   := 3.3.5-rc2
    DOWNLOADS := wt.archive
    ...
    CMD := `find . -name "*.C" -exec rename 's/\.C$/.cpp/' '{}' \;`

    default:
         ${CMD}

But when prepare the port this not work. It give me this output:

    ...
    Substitution replacement not terminated at (user-supplied code).
    ...

Somebody have any suggestion or any idea about how can i do this 
automatically on the port file?

Best regards

-- 
Lic. Reinier Millo Sánchez
Centro de Estudios de Informática
Universidad Central "Marta Abreu" de Las Villas
Carretera a Camajuaní Km 5 1/2
Santa Clara, Villa Clara, Cuba
CP 54830

"antes de discutir ... respira;
   antes de hablar ... escucha;
  antes de escribir ... piensa;
   antes de herir ... siente;
  antes de rendirte ... intenta;
   antes de morir ... vive"

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