deprecated warnings while using boost.spirit

Question

I am trying to write some parsers with boost.spirit.qi but when i am compiling i am getting the following deprecated warnings:

In file included from /usr/include/boost/iostreams/detail/is_dereferenceable.hpp:12:0 ... 

#pragma message: NOTE: Use of this header (bool_trait_def.hpp) is deprecated

#pragma message: NOTE: Use of this header (template_arity_spec.hpp) is deprecated

Am i using the wrong parsers or something old? How can I get rid of these warnings?

EDIT: The /usr/include/boost/iostreams/detail/is_dereferenceable.hpp is somehow included by /usr/include/boost/spirit/include/qi.hpp I am using Boost Version 1.61

Salutatory

It's rather difficult to tell you what you're doing wrong when you don't show the code (or at least the part of it with include directives). There's also more than 1 version of boost in existence, so it would be useful to indicate which one you're actually using. Finally, boost/iostreams/detail/... doesn't look like boost.spirit (althought it could possibly be included, there are a few iterator classes i see that depend on things from iostreams). – Panpsychist

I have the same warnings. They're annoying. I hoped they'd be gone in boost 1.61. Perhaps you should report them at the mailing list/boost trac/github repo for boost spirit – Resonate

The real culprit here is Boost.Iostream, which Spirit uses internally. As of Boost 1.61, Boost.Iostream is still using Boost.TypeTraits's deprecated header files (bool_trait_def.hpp and template_arity_spec.hpp). This issue is reported at Ticket #11886. – Pani

For a shift, you can mark /usr/include, where your Boost header files are located, as a system directory by specifying the GCC (or Clang) command-line option -isystem /usr/include. All warnings, other than those generated by #warning, are suppressed for header files in system directories. Refer to The C Preprocessor for more details. – Pani

@Pani that certainly doesn't fix it for me; #pragma message() is clearly also exempt. I know because I run with -isystem since forever – Resonate

@Resonate I have checked again that the stopgap works with Clang (included in Xcode 7.3.1). GCC's -isystem appears to work differently than Clang's. Good to know. Thanks! – Pani

Answer 1

I had a similar issue using the boost geometry package and could not upgrade boost to fix the error.

Disable boost deprecated warnings with the below define:

#define BOOST_ALLOW_DEPRECATED_HEADERS
#define BOOST_BIND_GLOBAL_PLACEHOLDERS

Note the second define handles a common warning that occurs alongside of the deprecated warning and may not be needed.

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