I believe if you add -std=c++1z to the compiler flags it works.
Kind regards,
Gunter.
Am 22. November 2019 00:57:58 MEZ schrieb Kornel Benko <[email protected]>:
>Hi,
>the recent version of enblend sources (from repo) is
>not compilable with the gnu compiler.
>
>Using it I get
>In file included from /usr/src/enblend/enblend-code/src/enblend.cc:85:
>/usr/src/enblend/enblend-code/src/optional_transitional.hpp:40:51:
>error: 'experimental'
>in namespace 'std' does not name a type 40 | template <typename t>
>using optional
>= ::std::experimental::optional<t>; |
>^~~~~~~~~~~~
>/usr/src/enblend/enblend-code/src/optional_transitional.hpp:41:11:
>error:
>'experimental' has not been declared 41 | using
>experimental::nullopt;
> | ^~~~~~~~~~~~
>/usr/src/enblend/enblend-code/src/enblend.cc:118:6: error: 'optional'
>in namespace 'std'
>does not name a template type 118 | std::optional<std::string>
>OutputMaskFileName;
> | ^~~~~~~~
>/usr/src/enblend/enblend-code/src/enblend.cc:118:1: note:
>'std::optional' is only
>available from C++17 onwards
>...................................................................
>
>Patching the CMakeLists.txt to use the required --std=c++17, the error
>compiling src/enblend.cc is:
>In file included from /usr/include/vigra/stdconvolution.hxx:43,
> from /usr/include/vigra/convolution.hxx:41,
> from /usr/src/enblend/enblend-code/src/openmp_vigra.h:32,
> from /usr/src/enblend/enblend-code/src/enblend.h:41,
> from /usr/src/enblend/enblend-code/src/enblend.cc:197:
>/usr/include/vigra/separableconvolution.hxx:1413:13: error: ISO C++17
>does not allow
>dynamic exception specifications 1413 |
>throw(PreconditionViolation)
> | ^~~~~
>.....................................................
>
>This is the same with the recent g++9.2 compiler.
>
> Kornel
>
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