Hi Fabrice,

You wrote on Wed, Oct 02, 2019 at 05:28:33PM +0200:
> diff --git a/CMakeLists.txt b/CMakeLists.txt
> index 71857d0..1e26ed4 100644
> --- a/CMakeLists.txt
> +++ b/CMakeLists.txt
> @@ -1,5 +1,5 @@
>  # Project
> -project(libftdi1)
> +project(libftdi1 C)
>  set(MAJOR_VERSION 1)
>  set(MINOR_VERSION 4)
>  set(PACKAGE libftdi1)
> diff --git a/ftdipp/CMakeLists.txt b/ftdipp/CMakeLists.txt
> index 2983d3d..37abbe3 100644
> --- a/ftdipp/CMakeLists.txt
> +++ b/ftdipp/CMakeLists.txt
> @@ -1,5 +1,7 @@
>  # vim: ts=2:sw=2:sts=2
>  
> +project(libftdipp1 C CXX)

thanks for upstreaming this patch.

I checked it some weeks ago and I was unsure regarding
the additional definition of project() in CMakeLists.txt.

A search on the net didn't give a definitive answer if it's
ok to call project() twice or more in a cmake project.

Today I tried the patch again with Fedora 31 and it fails:

$ cmake -DFTDIPP=ON ../
-- Build type: RelWithDebInfo
-- Detected git snapshot version: v1.4-27-g725f9a4
-- Building ftdi_eeprom
-- Summary of build options:

  Build static libs: ON
  Build C++ bindings: ON
  Build Python bindings: OFF
  Build ftdi_eeprom: ON
  Build examples: ON
  Build tests: OFF
  Build API documentation: OFF

-- Configuring done
CMake Error: Error required internal CMake variable not set, cmake may not be 
built correctly.
Missing variable is:
CMAKE_CXX_COMPILE_OBJECT
CMake Error: Error required internal CMake variable not set, cmake may not be 
built correctly.
Missing variable is:
CMAKE_CXX_LINK_EXECUTABLE
-- Generating done
CMake Generate step failed.  Build files cannot be regenerated correctly.


Environment: Fedora 31 / cmake version 3.16.1 / gcc 9.2.1


Without the patch compilation is fine, tried -DFTIPP=ON and -DFTDIPP=OFF.

Any idea how to proceed here?

Cheers,
Thomas

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