gr-iio: build failure due to -DCMAKE_C_STANDARD=89

[psiqueira (Paul Siqueira)]

Hello, when I am trying to install the GnuRadio port gr-iio, macports keeps getting hung up during the final stages of running cmake.

I have been working at this for a while already and most recently have done a complete reinstall of macports.

From what I can understand, the source of the problem is that the CMakeCache.txt file has a default of: CMAKE_C_STANDARD:UNINITIALIZED=89, and that that is an invalid value (see below).

I have the latest version of xcode command line tools installed and am running the latest version OS X Big Sur (11.4).

Does anyone know of a way to address this issue?

[psiqueira (Paul Siqueira)]

:info:configure -- The CXX compiler identification is AppleClang 12.0.5.12050022 :info:configure -- The C compiler identification is AppleClang 12.0.5.12050022 :info:configure -- Detecting CXX compiler ABI info :info:configure -- Detecting CXX compiler ABI info - done :info:configure -- Check for working CXX compiler: /usr/bin/clang++ - skipped :info:configure -- Detecting CXX compile features :info:configure -- Detecting CXX compile features - done :info:configure -- Detecting C compiler ABI info :info:configure CMake Error at /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_science_gr-iio/gr-iio/work/build/CMakeFiles/CMakeTmp/CMakeLists.txt:18 (add_executable): :info:configure C_STANDARD is set to invalid value '89'

[reneeotten (Renee Otten)]

presumably that was fixed already with recent commits/changes/ to the cmake PG. Please try sudo port selfupdate && sudo port clean --all gr-iio && sudo port install gr-iio; I think that should work...

If that doesn't solve your problem, please attach the full log(s) as the it will tell you in the message.

[psiqueira (Paul Siqueira)]

Thank you, that seems to have worked!