Build not finding /usr/include/cm256cc

[The-Fred]

Build not finding /usr/include/cm256cc

[f4exb]

I am not sure /usr/include/cm256cc is the correct default path when you install cm256cc. Cmake documentation says the default install prefix path is /usr/local see: https://cmake.org/cmake/help/v3.0/variable/CMAKE_INSTALL_PREFIX.html

So the includes should go to /usr/local/include that is already in the search path. Any specific path should be set with the LIBCM256CC_INSTALL_PREFIX at cmake invocation time and that path will be suffixed by /include anyway.

[The-Fred]

I looked at this some more and I followed the method in the cm256cc package.

https://github.com/f4exb/cm256cc#building-quick-setup

[f4exb]

These instructions say that you should have the cm256cc installation directory as:
cmake -Wno-dev -DCMAKE_INSTALL_PREFIX=/opt/install/cm256cc ..

Thus on the cmake command line of sdrangel you should have among other things:
-DCM256CC_INCLUDE_DIR=/opt/install/cm256cc/include/cm256cc -DCM256CC_LIBRARIES=/opt/install/cm256cc/lib/libcm256cc.so

Indeed the includes are placed in a cm256cc subdirectory. I suppose I did that not to mix it up with all the other include files but then the default locations will also be:
/usr/include/cm256cc
/usr/local/include/cm256cc
/usr/includeis useless and can be dropped

[f4exb]

This is fixed in v3.5.0