SDRangel @7.6.0_0: error: use of undeclared identifier 'aligned_alloc'; did you mean 'aligned_malloc'?

[rufty (Bill Hill)]

port installed | grep SDRangel
   SDRangel @7.5.1_0+gui+hackrf+libiio+native+rtlsdr+server+soapysdr (active)

sudo port upgrade SDRangel gives an error, seems to be:

/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_science_SDRangel/SDRangel/work/sdrangel-7.6.0/plugins/channelrx/demoddatv/ldpctool/layered_decoder.h:24:16: error: 
      use of undeclared identifier 'aligned_alloc'; did you mean 'aligned_malloc'?
        return aligned_alloc(alignment, size);
               ^~~~~~~~~~~~~
               aligned_malloc

[rufty (Bill Hill)]

/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_science_SDRangel/SDRangel/main.log

[ra1nb0w]

clang 10.0.0 should support c++17 therefore it should have aligned_alloc. Maybe forcing macports's clang? just like for previous macOS version?

[ryandesign (Ryan Carsten Schmidt)]

I found many other projects with this error. As far as I can tell, aligned_alloc is for C code (C11 and later) while std::aligned_alloc is for C++ code (C++17 and later). This file being compiled here is C++ code so perhaps it should be using std::aligned_alloc instead of aligned_alloc. The port succeeded building on macOS 10.15 and later; maybe later versions of clang are more relaxed about this distinction or maybe the default C language mode is newer in newer version of clang.

[Davide Gerhard <ra1nb0w@…>]

In 172dcc4bb7af6bf9dd339e1f5cbca1b3be29514a/macports-ports (master):

sdrangel: update version to 7.6.1

should fix the aligned_alloc build failure.

Closes: #65629

[ra1nb0w]

confirm that it works fine also for you. thanks

[rufty (Bill Hill)]

That worked, thanks!