Re: [Discuss-gnuradio] pybombs install hackrf causes CMake to fail with no suitable type found on CentOS 6.5

[Richard Sharpe]

On Fri, Sep 5, 2014 at 1:39 PM, Richard Sharpe
<address@hidden> wrote:
> Hi folks,
>
> I am trying to build on CentOS 6.5.
>
> I cloned the repos, and then issued cd pybombs; ./pybombs install
> hackrf and it eventually failed with:
>
> ------------------
> Current step: (hackrf :: configure)
> configure
> (' \n    CC=gcc CXX=g++ cmake .. -DCMAKE_BUILD_TYPE=Debug
> -DCMAKE_INSTALL_PREFIX=/home/rsharpe/dev/target \n', ' \n    CC=$cc
> CXX=$cxx cmake .. -DCMAKE_BUILD_TYPE=$cmakebuildtype
> -DCMAKE_INSTALL_PREFIX=$prefix $config_opt\n')
> (' \n    CC=gcc CXX=g++ cmake .. -DCMAKE_BUILD_TYPE=Debug
> -DCMAKE_INSTALL_PREFIX=/home/rsharpe/dev/target \n', ' \n    CC=gcc
> CXX=g++ cmake .. -DCMAKE_BUILD_TYPE=Debug
> -DCMAKE_INSTALL_PREFIX=/home/rsharpe/dev/target \n')
> bash exec (/home/rsharpe/dev/pybombs/src/hackrf/host/build)::
>     CC=gcc CXX=g++ cmake .. -DCMAKE_BUILD_TYPE=Debug
> -DCMAKE_INSTALL_PREFIX=/home/rsharpe/dev/target
>
> -- The C compiler identification is GNU
> -- The CXX compiler identification is GNU
>
> ...
>
> -- Check if the system is big endian
> -- Searching 16 bit integer
> -- Looking for sys/types.h
> -- Looking for sys/types.h - not found
> -- Looking for stdint.h
> -- Looking for stdint.h - not found
> -- Looking for stddef.h
> -- Looking for stddef.h - not found
> -- Check size of unsigned short
> -- Check size of unsigned short - failed
> -- Check size of unsigned int
> -- Check size of unsigned int - failed
> -- Check size of unsigned long
> -- Check size of unsigned long - failed
> CMake Error at 
> /home/rsharpe/dev/target/share/cmake-2.8/Modules/TestBigEndian.cmake:44
> (MESSAGE):
>   no suitable type found
> Call Stack (most recent call first):
>   libhackrf/CMakeLists.txt:40 (TEST_BIG_ENDIAN)
> ---------------------
>
> The problem was obvious once I checked in
> src/hackrf/host/build/CMakeFiles/CMakeError.log:
>
> cc1: error: unrecognized command line option "-std=gnu90"
>
> gcc version is 4.4-.7-4.el6 which does not support that command-line option.
>
> Is there any way to switch it off?

Found a way to fix the problem. I changed "-std=c90" to "-std=c99" in
two CMakeList.txt files and reran ./pybombs install hackrf and all
worked. However, I am not sure if there is any difference between
-std=c90 vs -std=c99 that will affect the generated code. Indeed, it
is even possible that -std=c89 would work, but I did not try that.

That suggests that for greater portability the hackrf CMakeList.txt
files should change that.

-- 
Regards,
Richard Sharpe
(何以解憂？唯有杜康。--曹操)