Suppress warnings from boost includes

Question

I have a c++ application (built under linux with g++ 4.8.3, boost 1.54) that spouts a lot of warnings about boost . Warnings include:

 /usr/local/include/boost/math/constants/constants.hpp:314:3: warning: non-standard suffix on floating constant [-Wpedantic]
BOOST_DEFINE_MATH_CONSTANT(rayleigh_skewness, 6.311106578189371381918993515442277798e-01, "6.31110657818937138191899351544227779844042203134719497658094585692926819617473725459905027032537306794400047264e-01")

/usr/local/include/boost/concept/detail/general.hpp:71:20: warning: typedef 'boost_concept_check228' locally defined but not used [-Wunused-local-typedefs]
   BOOST_PP_CAT(boost_concept_check,__LINE__)

...

There are so many different ones . It looks like from here that you can suppress particular typedef warnings: https://svn.boost.org/trac/boost/ticket/7242

But I would like to be able to suppress all of these warnings. Any suggestions?

Answer 1

As the commenter TC suggests, warnings are suppressed for system headers in gcc. There are (at least) two ways of adding additional system include paths to your gcc build:

1. -isystem command line option, and
2. *_INCLUDE_PATH environment variables (where '*' is C , CPLUS , or OBJC ).

These mechanisms also work for clang.